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601
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doc
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/*
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Copyright (c) 2007, Yahoo! Inc. All rights reserved.
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Code licensed under the BSD License:
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http://developer.yahoo.net/yui/license.txt
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version: 2.4.1
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*/
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/**
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* The drag and drop utility provides a framework for building drag and drop
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* applications. In addition to enabling drag and drop for specific elements,
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* the drag and drop elements are tracked by the manager class, and the
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* interactions between the various elements are tracked during the drag and
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* the implementing code is notified about these important moments.
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* @module dragdrop
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* @title Drag and Drop
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* @requires yahoo,dom,event
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* @namespace YAHOO.util
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*/
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// Only load the library once. Rewriting the manager class would orphan
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// existing drag and drop instances.
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if (!YAHOO.util.DragDropMgr) {
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/**
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* DragDropMgr is a singleton that tracks the element interaction for
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* all DragDrop items in the window. Generally, you will not call
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* this class directly, but it does have helper methods that could
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* be useful in your DragDrop implementations.
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* @class DragDropMgr
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* @static
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*/
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YAHOO.util.DragDropMgr = function() {
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var Event = YAHOO.util.Event;
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return {
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/**
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* Two dimensional Array of registered DragDrop objects. The first
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* dimension is the DragDrop item group, the second the DragDrop
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* object.
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* @property ids
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* @type {string: string}
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* @private
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* @static
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*/
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ids: {},
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/**
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* Array of element ids defined as drag handles. Used to determine
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* if the element that generated the mousedown event is actually the
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* handle and not the html element itself.
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* @property handleIds
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* @type {string: string}
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* @private
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* @static
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*/
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handleIds: {},
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/**
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* the DragDrop object that is currently being dragged
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* @property dragCurrent
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* @type DragDrop
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* @private
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* @static
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**/
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dragCurrent: null,
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/**
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* the DragDrop object(s) that are being hovered over
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* @property dragOvers
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* @type Array
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* @private
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* @static
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*/
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dragOvers: {},
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/**
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* the X distance between the cursor and the object being dragged
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* @property deltaX
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* @type int
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* @private
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* @static
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*/
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deltaX: 0,
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/**
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* the Y distance between the cursor and the object being dragged
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* @property deltaY
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* @type int
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* @private
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* @static
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*/
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deltaY: 0,
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/**
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* Flag to determine if we should prevent the default behavior of the
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* events we define. By default this is true, but this can be set to
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* false if you need the default behavior (not recommended)
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* @property preventDefault
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* @type boolean
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* @static
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*/
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preventDefault: true,
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/**
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* Flag to determine if we should stop the propagation of the events
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* we generate. This is true by default but you may want to set it to
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* false if the html element contains other features that require the
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* mouse click.
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* @property stopPropagation
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* @type boolean
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* @static
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*/
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stopPropagation: true,
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/**
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* Internal flag that is set to true when drag and drop has been
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* initialized
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* @property initialized
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* @private
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* @static
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*/
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initialized: false,
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/**
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* All drag and drop can be disabled.
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* @property locked
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* @private
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* @static
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*/
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locked: false,
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/**
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* Provides additional information about the the current set of
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* interactions. Can be accessed from the event handlers. It
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* contains the following properties:
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*
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* out: onDragOut interactions
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* enter: onDragEnter interactions
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* over: onDragOver interactions
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* drop: onDragDrop interactions
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* point: The location of the cursor
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* draggedRegion: The location of dragged element at the time
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* of the interaction
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* sourceRegion: The location of the source elemtn at the time
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* of the interaction
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* validDrop: boolean
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* @property interactionInfo
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* @type object
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* @static
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*/
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interactionInfo: null,
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/**
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* Called the first time an element is registered.
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* @method init
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* @private
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* @static
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*/
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init: function() {
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this.initialized = true;
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},
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/**
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* In point mode, drag and drop interaction is defined by the
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* location of the cursor during the drag/drop
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* @property POINT
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* @type int
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* @static
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* @final
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*/
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POINT: 0,
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/**
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* In intersect mode, drag and drop interaction is defined by the
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* cursor position or the amount of overlap of two or more drag and
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* drop objects.
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* @property INTERSECT
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* @type int
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* @static
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* @final
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*/
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INTERSECT: 1,
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/**
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* In intersect mode, drag and drop interaction is defined only by the
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* overlap of two or more drag and drop objects.
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* @property STRICT_INTERSECT
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* @type int
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* @static
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* @final
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*/
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STRICT_INTERSECT: 2,
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/**
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* The current drag and drop mode. Default: POINT
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* @property mode
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* @type int
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* @static
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*/
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mode: 0,
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/**
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* Runs method on all drag and drop objects
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* @method _execOnAll
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* @private
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* @static
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*/
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_execOnAll: function(sMethod, args) {
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for (var i in this.ids) {
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for (var j in this.ids[i]) {
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var oDD = this.ids[i][j];
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if (! this.isTypeOfDD(oDD)) {
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continue;
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}
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oDD[sMethod].apply(oDD, args);
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}
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}
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},
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/**
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* Drag and drop initialization. Sets up the global event handlers
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* @method _onLoad
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* @private
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* @static
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*/
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_onLoad: function() {
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this.init();
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YAHOO.log("DragDropMgr onload", "info", "DragDropMgr");
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Event.on(document, "mouseup", this.handleMouseUp, this, true);
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Event.on(document, "mousemove", this.handleMouseMove, this, true);
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Event.on(window, "unload", this._onUnload, this, true);
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Event.on(window, "resize", this._onResize, this, true);
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// Event.on(window, "mouseout", this._test);
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},
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/**
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* Reset constraints on all drag and drop objs
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* @method _onResize
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* @private
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* @static
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*/
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_onResize: function(e) {
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YAHOO.log("window resize", "info", "DragDropMgr");
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this._execOnAll("resetConstraints", []);
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},
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/**
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* Lock all drag and drop functionality
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* @method lock
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* @static
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*/
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lock: function() { this.locked = true; },
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/**
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* Unlock all drag and drop functionality
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* @method unlock
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* @static
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*/
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unlock: function() { this.locked = false; },
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/**
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* Is drag and drop locked?
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* @method isLocked
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* @return {boolean} True if drag and drop is locked, false otherwise.
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* @static
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*/
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isLocked: function() { return this.locked; },
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/**
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* Location cache that is set for all drag drop objects when a drag is
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* initiated, cleared when the drag is finished.
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* @property locationCache
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* @private
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* @static
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*/
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locationCache: {},
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/**
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* Set useCache to false if you want to force object the lookup of each
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* drag and drop linked element constantly during a drag.
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* @property useCache
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* @type boolean
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* @static
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*/
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useCache: true,
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/**
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* The number of pixels that the mouse needs to move after the
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* mousedown before the drag is initiated. Default=3;
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* @property clickPixelThresh
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* @type int
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* @static
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*/
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clickPixelThresh: 3,
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/**
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* The number of milliseconds after the mousedown event to initiate the
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* drag if we don't get a mouseup event. Default=1000
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* @property clickTimeThresh
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* @type int
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* @static
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*/
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clickTimeThresh: 1000,
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/**
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* Flag that indicates that either the drag pixel threshold or the
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* mousdown time threshold has been met
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* @property dragThreshMet
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* @type boolean
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* @private
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* @static
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*/
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dragThreshMet: false,
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/**
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* Timeout used for the click time threshold
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* @property clickTimeout
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* @type Object
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* @private
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* @static
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*/
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clickTimeout: null,
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/**
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* The X position of the mousedown event stored for later use when a
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* drag threshold is met.
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* @property startX
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* @type int
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* @private
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* @static
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*/
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startX: 0,
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/**
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* The Y position of the mousedown event stored for later use when a
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* drag threshold is met.
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* @property startY
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* @type int
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* @private
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* @static
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*/
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startY: 0,
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/**
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* Flag to determine if the drag event was fired from the click timeout and
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* not the mouse move threshold.
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* @property fromTimeout
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* @type boolean
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* @private
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* @static
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*/
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fromTimeout: false,
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/**
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* Each DragDrop instance must be registered with the DragDropMgr.
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* This is executed in DragDrop.init()
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* @method regDragDrop
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* @param {DragDrop} oDD the DragDrop object to register
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| 364 |
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* @param {String} sGroup the name of the group this element belongs to
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* @static
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*/
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regDragDrop: function(oDD, sGroup) {
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if (!this.initialized) { this.init(); }
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if (!this.ids[sGroup]) {
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this.ids[sGroup] = {};
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}
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this.ids[sGroup][oDD.id] = oDD;
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},
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/**
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* Removes the supplied dd instance from the supplied group. Executed
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* by DragDrop.removeFromGroup, so don't call this function directly.
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* @method removeDDFromGroup
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| 380 |
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* @private
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| 381 |
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* @static
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*/
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removeDDFromGroup: function(oDD, sGroup) {
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if (!this.ids[sGroup]) {
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this.ids[sGroup] = {};
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}
|
| 387 |
|
|
|
| 388 |
|
|
var obj = this.ids[sGroup];
|
| 389 |
|
|
if (obj && obj[oDD.id]) {
|
| 390 |
|
|
delete obj[oDD.id];
|
| 391 |
|
|
}
|
| 392 |
|
|
},
|
| 393 |
|
|
|
| 394 |
|
|
/**
|
| 395 |
|
|
* Unregisters a drag and drop item. This is executed in
|
| 396 |
|
|
* DragDrop.unreg, use that method instead of calling this directly.
|
| 397 |
|
|
* @method _remove
|
| 398 |
|
|
* @private
|
| 399 |
|
|
* @static
|
| 400 |
|
|
*/
|
| 401 |
|
|
_remove: function(oDD) {
|
| 402 |
|
|
for (var g in oDD.groups) {
|
| 403 |
|
|
if (g && this.ids[g][oDD.id]) {
|
| 404 |
|
|
delete this.ids[g][oDD.id];
|
| 405 |
|
|
//YAHOO.log("NEW LEN " + this.ids.length, "warn");
|
| 406 |
|
|
}
|
| 407 |
|
|
}
|
| 408 |
|
|
delete this.handleIds[oDD.id];
|
| 409 |
|
|
},
|
| 410 |
|
|
|
| 411 |
|
|
/**
|
| 412 |
|
|
* Each DragDrop handle element must be registered. This is done
|
| 413 |
|
|
* automatically when executing DragDrop.setHandleElId()
|
| 414 |
|
|
* @method regHandle
|
| 415 |
|
|
* @param {String} sDDId the DragDrop id this element is a handle for
|
| 416 |
|
|
* @param {String} sHandleId the id of the element that is the drag
|
| 417 |
|
|
* handle
|
| 418 |
|
|
* @static
|
| 419 |
|
|
*/
|
| 420 |
|
|
regHandle: function(sDDId, sHandleId) {
|
| 421 |
|
|
if (!this.handleIds[sDDId]) {
|
| 422 |
|
|
this.handleIds[sDDId] = {};
|
| 423 |
|
|
}
|
| 424 |
|
|
this.handleIds[sDDId][sHandleId] = sHandleId;
|
| 425 |
|
|
},
|
| 426 |
|
|
|
| 427 |
|
|
/**
|
| 428 |
|
|
* Utility function to determine if a given element has been
|
| 429 |
|
|
* registered as a drag drop item.
|
| 430 |
|
|
* @method isDragDrop
|
| 431 |
|
|
* @param {String} id the element id to check
|
| 432 |
|
|
* @return {boolean} true if this element is a DragDrop item,
|
| 433 |
|
|
* false otherwise
|
| 434 |
|
|
* @static
|
| 435 |
|
|
*/
|
| 436 |
|
|
isDragDrop: function(id) {
|
| 437 |
|
|
return ( this.getDDById(id) ) ? true : false;
|
| 438 |
|
|
},
|
| 439 |
|
|
|
| 440 |
|
|
/**
|
| 441 |
|
|
* Returns the drag and drop instances that are in all groups the
|
| 442 |
|
|
* passed in instance belongs to.
|
| 443 |
|
|
* @method getRelated
|
| 444 |
|
|
* @param {DragDrop} p_oDD the obj to get related data for
|
| 445 |
|
|
* @param {boolean} bTargetsOnly if true, only return targetable objs
|
| 446 |
|
|
* @return {DragDrop[]} the related instances
|
| 447 |
|
|
* @static
|
| 448 |
|
|
*/
|
| 449 |
|
|
getRelated: function(p_oDD, bTargetsOnly) {
|
| 450 |
|
|
var oDDs = [];
|
| 451 |
|
|
for (var i in p_oDD.groups) {
|
| 452 |
|
|
for (var j in this.ids[i]) {
|
| 453 |
|
|
var dd = this.ids[i][j];
|
| 454 |
|
|
if (! this.isTypeOfDD(dd)) {
|
| 455 |
|
|
continue;
|
| 456 |
|
|
}
|
| 457 |
|
|
if (!bTargetsOnly || dd.isTarget) {
|
| 458 |
|
|
oDDs[oDDs.length] = dd;
|
| 459 |
|
|
}
|
| 460 |
|
|
}
|
| 461 |
|
|
}
|
| 462 |
|
|
|
| 463 |
|
|
return oDDs;
|
| 464 |
|
|
},
|
| 465 |
|
|
|
| 466 |
|
|
/**
|
| 467 |
|
|
* Returns true if the specified dd target is a legal target for
|
| 468 |
|
|
* the specifice drag obj
|
| 469 |
|
|
* @method isLegalTarget
|
| 470 |
|
|
* @param {DragDrop} the drag obj
|
| 471 |
|
|
* @param {DragDrop} the target
|
| 472 |
|
|
* @return {boolean} true if the target is a legal target for the
|
| 473 |
|
|
* dd obj
|
| 474 |
|
|
* @static
|
| 475 |
|
|
*/
|
| 476 |
|
|
isLegalTarget: function (oDD, oTargetDD) {
|
| 477 |
|
|
var targets = this.getRelated(oDD, true);
|
| 478 |
|
|
for (var i=0, len=targets.length;i<len;++i) {
|
| 479 |
|
|
if (targets[i].id == oTargetDD.id) {
|
| 480 |
|
|
return true;
|
| 481 |
|
|
}
|
| 482 |
|
|
}
|
| 483 |
|
|
|
| 484 |
|
|
return false;
|
| 485 |
|
|
},
|
| 486 |
|
|
|
| 487 |
|
|
/**
|
| 488 |
|
|
* My goal is to be able to transparently determine if an object is
|
| 489 |
|
|
* typeof DragDrop, and the exact subclass of DragDrop. typeof
|
| 490 |
|
|
* returns "object", oDD.constructor.toString() always returns
|
| 491 |
|
|
* "DragDrop" and not the name of the subclass. So for now it just
|
| 492 |
|
|
* evaluates a well-known variable in DragDrop.
|
| 493 |
|
|
* @method isTypeOfDD
|
| 494 |
|
|
* @param {Object} the object to evaluate
|
| 495 |
|
|
* @return {boolean} true if typeof oDD = DragDrop
|
| 496 |
|
|
* @static
|
| 497 |
|
|
*/
|
| 498 |
|
|
isTypeOfDD: function (oDD) {
|
| 499 |
|
|
return (oDD && oDD.__ygDragDrop);
|
| 500 |
|
|
},
|
| 501 |
|
|
|
| 502 |
|
|
/**
|
| 503 |
|
|
* Utility function to determine if a given element has been
|
| 504 |
|
|
* registered as a drag drop handle for the given Drag Drop object.
|
| 505 |
|
|
* @method isHandle
|
| 506 |
|
|
* @param {String} id the element id to check
|
| 507 |
|
|
* @return {boolean} true if this element is a DragDrop handle, false
|
| 508 |
|
|
* otherwise
|
| 509 |
|
|
* @static
|
| 510 |
|
|
*/
|
| 511 |
|
|
isHandle: function(sDDId, sHandleId) {
|
| 512 |
|
|
return ( this.handleIds[sDDId] &&
|
| 513 |
|
|
this.handleIds[sDDId][sHandleId] );
|
| 514 |
|
|
},
|
| 515 |
|
|
|
| 516 |
|
|
/**
|
| 517 |
|
|
* Returns the DragDrop instance for a given id
|
| 518 |
|
|
* @method getDDById
|
| 519 |
|
|
* @param {String} id the id of the DragDrop object
|
| 520 |
|
|
* @return {DragDrop} the drag drop object, null if it is not found
|
| 521 |
|
|
* @static
|
| 522 |
|
|
*/
|
| 523 |
|
|
getDDById: function(id) {
|
| 524 |
|
|
for (var i in this.ids) {
|
| 525 |
|
|
if (this.ids[i][id]) {
|
| 526 |
|
|
return this.ids[i][id];
|
| 527 |
|
|
}
|
| 528 |
|
|
}
|
| 529 |
|
|
return null;
|
| 530 |
|
|
},
|
| 531 |
|
|
|
| 532 |
|
|
/**
|
| 533 |
|
|
* Fired after a registered DragDrop object gets the mousedown event.
|
| 534 |
|
|
* Sets up the events required to track the object being dragged
|
| 535 |
|
|
* @method handleMouseDown
|
| 536 |
|
|
* @param {Event} e the event
|
| 537 |
|
|
* @param oDD the DragDrop object being dragged
|
| 538 |
|
|
* @private
|
| 539 |
|
|
* @static
|
| 540 |
|
|
*/
|
| 541 |
|
|
handleMouseDown: function(e, oDD) {
|
| 542 |
|
|
|
| 543 |
|
|
this.currentTarget = YAHOO.util.Event.getTarget(e);
|
| 544 |
|
|
|
| 545 |
|
|
this.dragCurrent = oDD;
|
| 546 |
|
|
|
| 547 |
|
|
var el = oDD.getEl();
|
| 548 |
|
|
|
| 549 |
|
|
// track start position
|
| 550 |
|
|
this.startX = YAHOO.util.Event.getPageX(e);
|
| 551 |
|
|
this.startY = YAHOO.util.Event.getPageY(e);
|
| 552 |
|
|
|
| 553 |
|
|
this.deltaX = this.startX - el.offsetLeft;
|
| 554 |
|
|
this.deltaY = this.startY - el.offsetTop;
|
| 555 |
|
|
|
| 556 |
|
|
this.dragThreshMet = false;
|
| 557 |
|
|
|
| 558 |
|
|
this.clickTimeout = setTimeout(
|
| 559 |
|
|
function() {
|
| 560 |
|
|
var DDM = YAHOO.util.DDM;
|
| 561 |
|
|
DDM.startDrag(DDM.startX, DDM.startY);
|
| 562 |
|
|
DDM.fromTimeout = true;
|
| 563 |
|
|
},
|
| 564 |
|
|
this.clickTimeThresh );
|
| 565 |
|
|
},
|
| 566 |
|
|
|
| 567 |
|
|
/**
|
| 568 |
|
|
* Fired when either the drag pixel threshol or the mousedown hold
|
| 569 |
|
|
* time threshold has been met.
|
| 570 |
|
|
* @method startDrag
|
| 571 |
|
|
* @param x {int} the X position of the original mousedown
|
| 572 |
|
|
* @param y {int} the Y position of the original mousedown
|
| 573 |
|
|
* @static
|
| 574 |
|
|
*/
|
| 575 |
|
|
startDrag: function(x, y) {
|
| 576 |
|
|
YAHOO.log("firing drag start events", "info", "DragDropMgr");
|
| 577 |
|
|
clearTimeout(this.clickTimeout);
|
| 578 |
|
|
var dc = this.dragCurrent;
|
| 579 |
|
|
if (dc) {
|
| 580 |
|
|
dc.b4StartDrag(x, y);
|
| 581 |
|
|
}
|
| 582 |
|
|
if (dc) {
|
| 583 |
|
|
dc.startDrag(x, y);
|
| 584 |
|
|
}
|
| 585 |
|
|
this.dragThreshMet = true;
|
| 586 |
|
|
},
|
| 587 |
|
|
|
| 588 |
|
|
/**
|
| 589 |
|
|
* Internal function to handle the mouseup event. Will be invoked
|
| 590 |
|
|
* from the context of the document.
|
| 591 |
|
|
* @method handleMouseUp
|
| 592 |
|
|
* @param {Event} e the event
|
| 593 |
|
|
* @private
|
| 594 |
|
|
* @static
|
| 595 |
|
|
*/
|
| 596 |
|
|
handleMouseUp: function(e) {
|
| 597 |
|
|
if (this.dragCurrent) {
|
| 598 |
|
|
clearTimeout(this.clickTimeout);
|
| 599 |
|
|
|
| 600 |
|
|
if (this.dragThreshMet) {
|
| 601 |
|
|
YAHOO.log("mouseup detected - completing drag", "info", "DragDropMgr");
|
| 602 |
|
|
if (this.fromTimeout) {
|
| 603 |
|
|
YAHOO.log('fromTimeout is true (mouse didn\'t move), call handleMouseDown so we can get the dragOver event', 'info', 'DragDropMgr');
|
| 604 |
|
|
this.handleMouseMove(e);
|
| 605 |
|
|
}
|
| 606 |
|
|
this.fromTimeout = false;
|
| 607 |
|
|
this.fireEvents(e, true);
|
| 608 |
|
|
} else {
|
| 609 |
|
|
YAHOO.log("drag threshold not met", "info", "DragDropMgr");
|
| 610 |
|
|
}
|
| 611 |
|
|
|
| 612 |
|
|
this.stopDrag(e);
|
| 613 |
|
|
|
| 614 |
|
|
this.stopEvent(e);
|
| 615 |
|
|
}
|
| 616 |
|
|
},
|
| 617 |
|
|
|
| 618 |
|
|
/**
|
| 619 |
|
|
* Utility to stop event propagation and event default, if these
|
| 620 |
|
|
* features are turned on.
|
| 621 |
|
|
* @method stopEvent
|
| 622 |
|
|
* @param {Event} e the event as returned by this.getEvent()
|
| 623 |
|
|
* @static
|
| 624 |
|
|
*/
|
| 625 |
|
|
stopEvent: function(e) {
|
| 626 |
|
|
if (this.stopPropagation) {
|
| 627 |
|
|
YAHOO.util.Event.stopPropagation(e);
|
| 628 |
|
|
}
|
| 629 |
|
|
|
| 630 |
|
|
if (this.preventDefault) {
|
| 631 |
|
|
YAHOO.util.Event.preventDefault(e);
|
| 632 |
|
|
}
|
| 633 |
|
|
},
|
| 634 |
|
|
|
| 635 |
|
|
/**
|
| 636 |
|
|
* Ends the current drag, cleans up the state, and fires the endDrag
|
| 637 |
|
|
* and mouseUp events. Called internally when a mouseup is detected
|
| 638 |
|
|
* during the drag. Can be fired manually during the drag by passing
|
| 639 |
|
|
* either another event (such as the mousemove event received in onDrag)
|
| 640 |
|
|
* or a fake event with pageX and pageY defined (so that endDrag and
|
| 641 |
|
|
* onMouseUp have usable position data.). Alternatively, pass true
|
| 642 |
|
|
* for the silent parameter so that the endDrag and onMouseUp events
|
| 643 |
|
|
* are skipped (so no event data is needed.)
|
| 644 |
|
|
*
|
| 645 |
|
|
* @method stopDrag
|
| 646 |
|
|
* @param {Event} e the mouseup event, another event (or a fake event)
|
| 647 |
|
|
* with pageX and pageY defined, or nothing if the
|
| 648 |
|
|
* silent parameter is true
|
| 649 |
|
|
* @param {boolean} silent skips the enddrag and mouseup events if true
|
| 650 |
|
|
* @static
|
| 651 |
|
|
*/
|
| 652 |
|
|
stopDrag: function(e, silent) {
|
| 653 |
|
|
// YAHOO.log("mouseup - removing event handlers");
|
| 654 |
|
|
|
| 655 |
|
|
// Fire the drag end event for the item that was dragged
|
| 656 |
|
|
if (this.dragCurrent && !silent) {
|
| 657 |
|
|
if (this.dragThreshMet) {
|
| 658 |
|
|
YAHOO.log("firing endDrag events", "info", "DragDropMgr");
|
| 659 |
|
|
this.dragCurrent.b4EndDrag(e);
|
| 660 |
|
|
this.dragCurrent.endDrag(e);
|
| 661 |
|
|
}
|
| 662 |
|
|
|
| 663 |
|
|
YAHOO.log("firing dragdrop onMouseUp event", "info", "DragDropMgr");
|
| 664 |
|
|
this.dragCurrent.onMouseUp(e);
|
| 665 |
|
|
}
|
| 666 |
|
|
|
| 667 |
|
|
this.dragCurrent = null;
|
| 668 |
|
|
this.dragOvers = {};
|
| 669 |
|
|
},
|
| 670 |
|
|
|
| 671 |
|
|
/**
|
| 672 |
|
|
* Internal function to handle the mousemove event. Will be invoked
|
| 673 |
|
|
* from the context of the html element.
|
| 674 |
|
|
*
|
| 675 |
|
|
* @TODO figure out what we can do about mouse events lost when the
|
| 676 |
|
|
* user drags objects beyond the window boundary. Currently we can
|
| 677 |
|
|
* detect this in internet explorer by verifying that the mouse is
|
| 678 |
|
|
* down during the mousemove event. Firefox doesn't give us the
|
| 679 |
|
|
* button state on the mousemove event.
|
| 680 |
|
|
* @method handleMouseMove
|
| 681 |
|
|
* @param {Event} e the event
|
| 682 |
|
|
* @private
|
| 683 |
|
|
* @static
|
| 684 |
|
|
*/
|
| 685 |
|
|
handleMouseMove: function(e) {
|
| 686 |
|
|
//YAHOO.log("handlemousemove");
|
| 687 |
|
|
|
| 688 |
|
|
var dc = this.dragCurrent;
|
| 689 |
|
|
if (dc) {
|
| 690 |
|
|
// YAHOO.log("no current drag obj");
|
| 691 |
|
|
|
| 692 |
|
|
// var button = e.which || e.button;
|
| 693 |
|
|
// YAHOO.log("which: " + e.which + ", button: "+ e.button);
|
| 694 |
|
|
|
| 695 |
|
|
// check for IE mouseup outside of page boundary
|
| 696 |
|
|
if (YAHOO.util.Event.isIE && !e.button) {
|
| 697 |
|
|
YAHOO.log("button failure", "info", "DragDropMgr");
|
| 698 |
|
|
this.stopEvent(e);
|
| 699 |
|
|
return this.handleMouseUp(e);
|
| 700 |
|
|
}
|
| 701 |
|
|
|
| 702 |
|
|
if (!this.dragThreshMet) {
|
| 703 |
|
|
var diffX = Math.abs(this.startX - YAHOO.util.Event.getPageX(e));
|
| 704 |
|
|
var diffY = Math.abs(this.startY - YAHOO.util.Event.getPageY(e));
|
| 705 |
|
|
// YAHOO.log("diffX: " + diffX + "diffY: " + diffY);
|
| 706 |
|
|
if (diffX > this.clickPixelThresh ||
|
| 707 |
|
|
diffY > this.clickPixelThresh) {
|
| 708 |
|
|
YAHOO.log("pixel threshold met", "info", "DragDropMgr");
|
| 709 |
|
|
this.startDrag(this.startX, this.startY);
|
| 710 |
|
|
}
|
| 711 |
|
|
}
|
| 712 |
|
|
|
| 713 |
|
|
if (this.dragThreshMet) {
|
| 714 |
|
|
dc.b4Drag(e);
|
| 715 |
|
|
if (dc) {
|
| 716 |
|
|
dc.onDrag(e);
|
| 717 |
|
|
}
|
| 718 |
|
|
if (dc) {
|
| 719 |
|
|
this.fireEvents(e, false);
|
| 720 |
|
|
}
|
| 721 |
|
|
}
|
| 722 |
|
|
|
| 723 |
|
|
this.stopEvent(e);
|
| 724 |
|
|
}
|
| 725 |
|
|
},
|
| 726 |
|
|
|
| 727 |
|
|
/**
|
| 728 |
|
|
* Iterates over all of the DragDrop elements to find ones we are
|
| 729 |
|
|
* hovering over or dropping on
|
| 730 |
|
|
* @method fireEvents
|
| 731 |
|
|
* @param {Event} e the event
|
| 732 |
|
|
* @param {boolean} isDrop is this a drop op or a mouseover op?
|
| 733 |
|
|
* @private
|
| 734 |
|
|
* @static
|
| 735 |
|
|
*/
|
| 736 |
|
|
fireEvents: function(e, isDrop) {
|
| 737 |
|
|
var dc = this.dragCurrent;
|
| 738 |
|
|
|
| 739 |
|
|
// If the user did the mouse up outside of the window, we could
|
| 740 |
|
|
// get here even though we have ended the drag.
|
| 741 |
|
|
// If the config option dragOnly is true, bail out and don't fire the events
|
| 742 |
|
|
if (!dc || dc.isLocked() || dc.dragOnly) {
|
| 743 |
|
|
return;
|
| 744 |
|
|
}
|
| 745 |
|
|
|
| 746 |
|
|
var x = YAHOO.util.Event.getPageX(e),
|
| 747 |
|
|
y = YAHOO.util.Event.getPageY(e),
|
| 748 |
|
|
pt = new YAHOO.util.Point(x,y),
|
| 749 |
|
|
pos = dc.getTargetCoord(pt.x, pt.y),
|
| 750 |
|
|
el = dc.getDragEl(),
|
| 751 |
|
|
curRegion = new YAHOO.util.Region( pos.y,
|
| 752 |
|
|
pos.x + el.offsetWidth,
|
| 753 |
|
|
pos.y + el.offsetHeight,
|
| 754 |
|
|
pos.x ),
|
| 755 |
|
|
|
| 756 |
|
|
oldOvers = [], // cache the previous dragOver array
|
| 757 |
|
|
outEvts = [],
|
| 758 |
|
|
overEvts = [],
|
| 759 |
|
|
dropEvts = [],
|
| 760 |
|
|
enterEvts = [],
|
| 761 |
|
|
inGroupsObj = {},
|
| 762 |
|
|
inGroups = [];
|
| 763 |
|
|
|
| 764 |
|
|
|
| 765 |
|
|
// Check to see if the object(s) we were hovering over is no longer
|
| 766 |
|
|
// being hovered over so we can fire the onDragOut event
|
| 767 |
|
|
for (var i in this.dragOvers) {
|
| 768 |
|
|
|
| 769 |
|
|
var ddo = this.dragOvers[i];
|
| 770 |
|
|
|
| 771 |
|
|
if (! this.isTypeOfDD(ddo)) {
|
| 772 |
|
|
continue;
|
| 773 |
|
|
}
|
| 774 |
|
|
if (! this.isOverTarget(pt, ddo, this.mode, curRegion)) {
|
| 775 |
|
|
outEvts.push( ddo );
|
| 776 |
|
|
}
|
| 777 |
|
|
|
| 778 |
|
|
oldOvers[i] = true;
|
| 779 |
|
|
delete this.dragOvers[i];
|
| 780 |
|
|
}
|
| 781 |
|
|
|
| 782 |
|
|
for (var sGroup in dc.groups) {
|
| 783 |
|
|
// YAHOO.log("Processing group " + sGroup);
|
| 784 |
|
|
|
| 785 |
|
|
if ("string" != typeof sGroup) {
|
| 786 |
|
|
continue;
|
| 787 |
|
|
}
|
| 788 |
|
|
|
| 789 |
|
|
for (i in this.ids[sGroup]) {
|
| 790 |
|
|
var oDD = this.ids[sGroup][i];
|
| 791 |
|
|
if (! this.isTypeOfDD(oDD)) {
|
| 792 |
|
|
continue;
|
| 793 |
|
|
}
|
| 794 |
|
|
|
| 795 |
|
|
if (oDD.isTarget && !oDD.isLocked() && oDD != dc) {
|
| 796 |
|
|
if (this.isOverTarget(pt, oDD, this.mode, curRegion)) {
|
| 797 |
|
|
inGroupsObj[sGroup] = true;
|
| 798 |
|
|
// look for drop interactions
|
| 799 |
|
|
if (isDrop) {
|
| 800 |
|
|
dropEvts.push( oDD );
|
| 801 |
|
|
// look for drag enter and drag over interactions
|
| 802 |
|
|
} else {
|
| 803 |
|
|
|
| 804 |
|
|
// initial drag over: dragEnter fires
|
| 805 |
|
|
if (!oldOvers[oDD.id]) {
|
| 806 |
|
|
enterEvts.push( oDD );
|
| 807 |
|
|
// subsequent drag overs: dragOver fires
|
| 808 |
|
|
} else {
|
| 809 |
|
|
overEvts.push( oDD );
|
| 810 |
|
|
}
|
| 811 |
|
|
|
| 812 |
|
|
this.dragOvers[oDD.id] = oDD;
|
| 813 |
|
|
}
|
| 814 |
|
|
}
|
| 815 |
|
|
}
|
| 816 |
|
|
}
|
| 817 |
|
|
}
|
| 818 |
|
|
|
| 819 |
|
|
this.interactionInfo = {
|
| 820 |
|
|
out: outEvts,
|
| 821 |
|
|
enter: enterEvts,
|
| 822 |
|
|
over: overEvts,
|
| 823 |
|
|
drop: dropEvts,
|
| 824 |
|
|
point: pt,
|
| 825 |
|
|
draggedRegion: curRegion,
|
| 826 |
|
|
sourceRegion: this.locationCache[dc.id],
|
| 827 |
|
|
validDrop: isDrop
|
| 828 |
|
|
};
|
| 829 |
|
|
|
| 830 |
|
|
|
| 831 |
|
|
for (var inG in inGroupsObj) {
|
| 832 |
|
|
inGroups.push(inG);
|
| 833 |
|
|
}
|
| 834 |
|
|
|
| 835 |
|
|
// notify about a drop that did not find a target
|
| 836 |
|
|
if (isDrop && !dropEvts.length) {
|
| 837 |
|
|
YAHOO.log(dc.id + " dropped, but not on a target", "info", "DragDropMgr");
|
| 838 |
|
|
this.interactionInfo.validDrop = false;
|
| 839 |
|
|
dc.onInvalidDrop(e);
|
| 840 |
|
|
}
|
| 841 |
|
|
|
| 842 |
|
|
|
| 843 |
|
|
if (this.mode) {
|
| 844 |
|
|
if (outEvts.length) {
|
| 845 |
|
|
YAHOO.log(dc.id+" onDragOut: " + outEvts, "info", "DragDropMgr");
|
| 846 |
|
|
dc.b4DragOut(e, outEvts);
|
| 847 |
|
|
if (dc) {
|
| 848 |
|
|
dc.onDragOut(e, outEvts);
|
| 849 |
|
|
}
|
| 850 |
|
|
}
|
| 851 |
|
|
|
| 852 |
|
|
if (enterEvts.length) {
|
| 853 |
|
|
YAHOO.log(dc.id+" onDragEnter: " + enterEvts + " (group: " + inGroups + ")", "info", "DragDropMgr");
|
| 854 |
|
|
if (dc) {
|
| 855 |
|
|
dc.onDragEnter(e, enterEvts, inGroups);
|
| 856 |
|
|
}
|
| 857 |
|
|
}
|
| 858 |
|
|
|
| 859 |
|
|
if (overEvts.length) {
|
| 860 |
|
|
YAHOO.log(dc.id+" onDragOver: " + overEvts + " (group: " + inGroups + ")", "info", "DragDropMgr");
|
| 861 |
|
|
if (dc) {
|
| 862 |
|
|
dc.b4DragOver(e, overEvts, inGroups);
|
| 863 |
|
|
}
|
| 864 |
|
|
|
| 865 |
|
|
if (dc) {
|
| 866 |
|
|
dc.onDragOver(e, overEvts, inGroups);
|
| 867 |
|
|
}
|
| 868 |
|
|
}
|
| 869 |
|
|
|
| 870 |
|
|
if (dropEvts.length) {
|
| 871 |
|
|
YAHOO.log(dc.id+" onDragDrop: " + dropEvts + " (group: " + inGroups + ")", "info", "DragDropMgr");
|
| 872 |
|
|
if (dc) {
|
| 873 |
|
|
dc.b4DragDrop(e, dropEvts, inGroups);
|
| 874 |
|
|
}
|
| 875 |
|
|
if (dc) {
|
| 876 |
|
|
dc.onDragDrop(e, dropEvts, inGroups);
|
| 877 |
|
|
}
|
| 878 |
|
|
}
|
| 879 |
|
|
|
| 880 |
|
|
} else {
|
| 881 |
|
|
// fire dragout events
|
| 882 |
|
|
var len = 0;
|
| 883 |
|
|
for (i=0, len=outEvts.length; i<len; ++i) {
|
| 884 |
|
|
YAHOO.log(dc.id+" onDragOut: " + outEvts[i].id, "info", "DragDropMgr");
|
| 885 |
|
|
if (dc) {
|
| 886 |
|
|
dc.b4DragOut(e, outEvts[i].id, inGroups[0]);
|
| 887 |
|
|
}
|
| 888 |
|
|
if (dc) {
|
| 889 |
|
|
dc.onDragOut(e, outEvts[i].id, inGroups[0]);
|
| 890 |
|
|
}
|
| 891 |
|
|
}
|
| 892 |
|
|
|
| 893 |
|
|
// fire enter events
|
| 894 |
|
|
for (i=0,len=enterEvts.length; i<len; ++i) {
|
| 895 |
|
|
YAHOO.log(dc.id + " onDragEnter " + enterEvts[i].id + " (group: " + inGroups + ")", "info", "DragDropMgr");
|
| 896 |
|
|
// dc.b4DragEnter(e, oDD.id);
|
| 897 |
|
|
|
| 898 |
|
|
if (dc) {
|
| 899 |
|
|
dc.onDragEnter(e, enterEvts[i].id, inGroups[0]);
|
| 900 |
|
|
}
|
| 901 |
|
|
}
|
| 902 |
|
|
|
| 903 |
|
|
// fire over events
|
| 904 |
|
|
for (i=0,len=overEvts.length; i<len; ++i) {
|
| 905 |
|
|
YAHOO.log(dc.id + " onDragOver " + overEvts[i].id + " (group: " + inGroups + ")", "info", "DragDropMgr");
|
| 906 |
|
|
if (dc) {
|
| 907 |
|
|
dc.b4DragOver(e, overEvts[i].id, inGroups[0]);
|
| 908 |
|
|
}
|
| 909 |
|
|
if (dc) {
|
| 910 |
|
|
dc.onDragOver(e, overEvts[i].id, inGroups[0]);
|
| 911 |
|
|
}
|
| 912 |
|
|
}
|
| 913 |
|
|
|
| 914 |
|
|
// fire drop events
|
| 915 |
|
|
for (i=0, len=dropEvts.length; i<len; ++i) {
|
| 916 |
|
|
YAHOO.log(dc.id + " dropped on " + dropEvts[i].id + " (group: " + inGroups + ")", "info", "DragDropMgr");
|
| 917 |
|
|
if (dc) {
|
| 918 |
|
|
dc.b4DragDrop(e, dropEvts[i].id, inGroups[0]);
|
| 919 |
|
|
}
|
| 920 |
|
|
if (dc) {
|
| 921 |
|
|
dc.onDragDrop(e, dropEvts[i].id, inGroups[0]);
|
| 922 |
|
|
}
|
| 923 |
|
|
}
|
| 924 |
|
|
|
| 925 |
|
|
}
|
| 926 |
|
|
},
|
| 927 |
|
|
|
| 928 |
|
|
/**
|
| 929 |
|
|
* Helper function for getting the best match from the list of drag
|
| 930 |
|
|
* and drop objects returned by the drag and drop events when we are
|
| 931 |
|
|
* in INTERSECT mode. It returns either the first object that the
|
| 932 |
|
|
* cursor is over, or the object that has the greatest overlap with
|
| 933 |
|
|
* the dragged element.
|
| 934 |
|
|
* @method getBestMatch
|
| 935 |
|
|
* @param {DragDrop[]} dds The array of drag and drop objects
|
| 936 |
|
|
* targeted
|
| 937 |
|
|
* @return {DragDrop} The best single match
|
| 938 |
|
|
* @static
|
| 939 |
|
|
*/
|
| 940 |
|
|
getBestMatch: function(dds) {
|
| 941 |
|
|
var winner = null;
|
| 942 |
|
|
|
| 943 |
|
|
var len = dds.length;
|
| 944 |
|
|
|
| 945 |
|
|
if (len == 1) {
|
| 946 |
|
|
winner = dds[0];
|
| 947 |
|
|
} else {
|
| 948 |
|
|
// Loop through the targeted items
|
| 949 |
|
|
for (var i=0; i<len; ++i) {
|
| 950 |
|
|
var dd = dds[i];
|
| 951 |
|
|
// If the cursor is over the object, it wins. If the
|
| 952 |
|
|
// cursor is over multiple matches, the first one we come
|
| 953 |
|
|
// to wins.
|
| 954 |
|
|
if (this.mode == this.INTERSECT && dd.cursorIsOver) {
|
| 955 |
|
|
winner = dd;
|
| 956 |
|
|
break;
|
| 957 |
|
|
// Otherwise the object with the most overlap wins
|
| 958 |
|
|
} else {
|
| 959 |
|
|
if (!winner || !winner.overlap || (dd.overlap &&
|
| 960 |
|
|
winner.overlap.getArea() < dd.overlap.getArea())) {
|
| 961 |
|
|
winner = dd;
|
| 962 |
|
|
}
|
| 963 |
|
|
}
|
| 964 |
|
|
}
|
| 965 |
|
|
}
|
| 966 |
|
|
|
| 967 |
|
|
return winner;
|
| 968 |
|
|
},
|
| 969 |
|
|
|
| 970 |
|
|
/**
|
| 971 |
|
|
* Refreshes the cache of the top-left and bottom-right points of the
|
| 972 |
|
|
* drag and drop objects in the specified group(s). This is in the
|
| 973 |
|
|
* format that is stored in the drag and drop instance, so typical
|
| 974 |
|
|
* usage is:
|
| 975 |
|
|
* <code>
|
| 976 |
|
|
* YAHOO.util.DragDropMgr.refreshCache(ddinstance.groups);
|
| 977 |
|
|
* </code>
|
| 978 |
|
|
* Alternatively:
|
| 979 |
|
|
* <code>
|
| 980 |
|
|
* YAHOO.util.DragDropMgr.refreshCache({group1:true, group2:true});
|
| 981 |
|
|
* </code>
|
| 982 |
|
|
* @TODO this really should be an indexed array. Alternatively this
|
| 983 |
|
|
* method could accept both.
|
| 984 |
|
|
* @method refreshCache
|
| 985 |
|
|
* @param {Object} groups an associative array of groups to refresh
|
| 986 |
|
|
* @static
|
| 987 |
|
|
*/
|
| 988 |
|
|
refreshCache: function(groups) {
|
| 989 |
|
|
YAHOO.log("refreshing element location cache", "info", "DragDropMgr");
|
| 990 |
|
|
|
| 991 |
|
|
// refresh everything if group array is not provided
|
| 992 |
|
|
var g = groups || this.ids;
|
| 993 |
|
|
|
| 994 |
|
|
for (var sGroup in g) {
|
| 995 |
|
|
if ("string" != typeof sGroup) {
|
| 996 |
|
|
continue;
|
| 997 |
|
|
}
|
| 998 |
|
|
for (var i in this.ids[sGroup]) {
|
| 999 |
|
|
var oDD = this.ids[sGroup][i];
|
| 1000 |
|
|
|
| 1001 |
|
|
if (this.isTypeOfDD(oDD)) {
|
| 1002 |
|
|
var loc = this.getLocation(oDD);
|
| 1003 |
|
|
if (loc) {
|
| 1004 |
|
|
this.locationCache[oDD.id] = loc;
|
| 1005 |
|
|
} else {
|
| 1006 |
|
|
delete this.locationCache[oDD.id];
|
| 1007 |
|
|
YAHOO.log("Could not get the loc for " + oDD.id, "warn", "DragDropMgr");
|
| 1008 |
|
|
}
|
| 1009 |
|
|
}
|
| 1010 |
|
|
}
|
| 1011 |
|
|
}
|
| 1012 |
|
|
},
|
| 1013 |
|
|
|
| 1014 |
|
|
/**
|
| 1015 |
|
|
* This checks to make sure an element exists and is in the DOM. The
|
| 1016 |
|
|
* main purpose is to handle cases where innerHTML is used to remove
|
| 1017 |
|
|
* drag and drop objects from the DOM. IE provides an 'unspecified
|
| 1018 |
|
|
* error' when trying to access the offsetParent of such an element
|
| 1019 |
|
|
* @method verifyEl
|
| 1020 |
|
|
* @param {HTMLElement} el the element to check
|
| 1021 |
|
|
* @return {boolean} true if the element looks usable
|
| 1022 |
|
|
* @static
|
| 1023 |
|
|
*/
|
| 1024 |
|
|
verifyEl: function(el) {
|
| 1025 |
|
|
try {
|
| 1026 |
|
|
if (el) {
|
| 1027 |
|
|
var parent = el.offsetParent;
|
| 1028 |
|
|
if (parent) {
|
| 1029 |
|
|
return true;
|
| 1030 |
|
|
}
|
| 1031 |
|
|
}
|
| 1032 |
|
|
} catch(e) {
|
| 1033 |
|
|
YAHOO.log("detected problem with an element", "info", "DragDropMgr");
|
| 1034 |
|
|
}
|
| 1035 |
|
|
|
| 1036 |
|
|
return false;
|
| 1037 |
|
|
},
|
| 1038 |
|
|
|
| 1039 |
|
|
/**
|
| 1040 |
|
|
* Returns a Region object containing the drag and drop element's position
|
| 1041 |
|
|
* and size, including the padding configured for it
|
| 1042 |
|
|
* @method getLocation
|
| 1043 |
|
|
* @param {DragDrop} oDD the drag and drop object to get the
|
| 1044 |
|
|
* location for
|
| 1045 |
|
|
* @return {YAHOO.util.Region} a Region object representing the total area
|
| 1046 |
|
|
* the element occupies, including any padding
|
| 1047 |
|
|
* the instance is configured for.
|
| 1048 |
|
|
* @static
|
| 1049 |
|
|
*/
|
| 1050 |
|
|
getLocation: function(oDD) {
|
| 1051 |
|
|
if (! this.isTypeOfDD(oDD)) {
|
| 1052 |
|
|
YAHOO.log(oDD + " is not a DD obj", "info", "DragDropMgr");
|
| 1053 |
|
|
return null;
|
| 1054 |
|
|
}
|
| 1055 |
|
|
|
| 1056 |
|
|
var el = oDD.getEl(), pos, x1, x2, y1, y2, t, r, b, l;
|
| 1057 |
|
|
|
| 1058 |
|
|
try {
|
| 1059 |
|
|
pos= YAHOO.util.Dom.getXY(el);
|
| 1060 |
|
|
} catch (e) { }
|
| 1061 |
|
|
|
| 1062 |
|
|
if (!pos) {
|
| 1063 |
|
|
YAHOO.log("getXY failed", "info", "DragDropMgr");
|
| 1064 |
|
|
return null;
|
| 1065 |
|
|
}
|
| 1066 |
|
|
|
| 1067 |
|
|
x1 = pos[0];
|
| 1068 |
|
|
x2 = x1 + el.offsetWidth;
|
| 1069 |
|
|
y1 = pos[1];
|
| 1070 |
|
|
y2 = y1 + el.offsetHeight;
|
| 1071 |
|
|
|
| 1072 |
|
|
t = y1 - oDD.padding[0];
|
| 1073 |
|
|
r = x2 + oDD.padding[1];
|
| 1074 |
|
|
b = y2 + oDD.padding[2];
|
| 1075 |
|
|
l = x1 - oDD.padding[3];
|
| 1076 |
|
|
|
| 1077 |
|
|
return new YAHOO.util.Region( t, r, b, l );
|
| 1078 |
|
|
},
|
| 1079 |
|
|
|
| 1080 |
|
|
/**
|
| 1081 |
|
|
* Checks the cursor location to see if it over the target
|
| 1082 |
|
|
* @method isOverTarget
|
| 1083 |
|
|
* @param {YAHOO.util.Point} pt The point to evaluate
|
| 1084 |
|
|
* @param {DragDrop} oTarget the DragDrop object we are inspecting
|
| 1085 |
|
|
* @param {boolean} intersect true if we are in intersect mode
|
| 1086 |
|
|
* @param {YAHOO.util.Region} pre-cached location of the dragged element
|
| 1087 |
|
|
* @return {boolean} true if the mouse is over the target
|
| 1088 |
|
|
* @private
|
| 1089 |
|
|
* @static
|
| 1090 |
|
|
*/
|
| 1091 |
|
|
isOverTarget: function(pt, oTarget, intersect, curRegion) {
|
| 1092 |
|
|
// use cache if available
|
| 1093 |
|
|
var loc = this.locationCache[oTarget.id];
|
| 1094 |
|
|
if (!loc || !this.useCache) {
|
| 1095 |
|
|
YAHOO.log("cache not populated", "info", "DragDropMgr");
|
| 1096 |
|
|
loc = this.getLocation(oTarget);
|
| 1097 |
|
|
this.locationCache[oTarget.id] = loc;
|
| 1098 |
|
|
|
| 1099 |
|
|
YAHOO.log("cache: " + loc, "info", "DragDropMgr");
|
| 1100 |
|
|
}
|
| 1101 |
|
|
|
| 1102 |
|
|
if (!loc) {
|
| 1103 |
|
|
YAHOO.log("could not get the location of the element", "info", "DragDropMgr");
|
| 1104 |
|
|
return false;
|
| 1105 |
|
|
}
|
| 1106 |
|
|
|
| 1107 |
|
|
//YAHOO.log("loc: " + loc + ", pt: " + pt);
|
| 1108 |
|
|
oTarget.cursorIsOver = loc.contains( pt );
|
| 1109 |
|
|
|
| 1110 |
|
|
// DragDrop is using this as a sanity check for the initial mousedown
|
| 1111 |
|
|
// in this case we are done. In POINT mode, if the drag obj has no
|
| 1112 |
|
|
// contraints, we are done. Otherwise we need to evaluate the
|
| 1113 |
|
|
// region the target as occupies to determine if the dragged element
|
| 1114 |
|
|
// overlaps with it.
|
| 1115 |
|
|
|
| 1116 |
|
|
var dc = this.dragCurrent;
|
| 1117 |
|
|
if (!dc || (!intersect && !dc.constrainX && !dc.constrainY)) {
|
| 1118 |
|
|
|
| 1119 |
|
|
//if (oTarget.cursorIsOver) {
|
| 1120 |
|
|
//YAHOO.log("over " + oTarget + ", " + loc + ", " + pt, "warn");
|
| 1121 |
|
|
//}
|
| 1122 |
|
|
return oTarget.cursorIsOver;
|
| 1123 |
|
|
}
|
| 1124 |
|
|
|
| 1125 |
|
|
oTarget.overlap = null;
|
| 1126 |
|
|
|
| 1127 |
|
|
// Get the current location of the drag element, this is the
|
| 1128 |
|
|
// location of the mouse event less the delta that represents
|
| 1129 |
|
|
// where the original mousedown happened on the element. We
|
| 1130 |
|
|
// need to consider constraints and ticks as well.
|
| 1131 |
|
|
|
| 1132 |
|
|
if (!curRegion) {
|
| 1133 |
|
|
var pos = dc.getTargetCoord(pt.x, pt.y);
|
| 1134 |
|
|
var el = dc.getDragEl();
|
| 1135 |
|
|
curRegion = new YAHOO.util.Region( pos.y,
|
| 1136 |
|
|
pos.x + el.offsetWidth,
|
| 1137 |
|
|
pos.y + el.offsetHeight,
|
| 1138 |
|
|
pos.x );
|
| 1139 |
|
|
}
|
| 1140 |
|
|
|
| 1141 |
|
|
var overlap = curRegion.intersect(loc);
|
| 1142 |
|
|
|
| 1143 |
|
|
if (overlap) {
|
| 1144 |
|
|
oTarget.overlap = overlap;
|
| 1145 |
|
|
return (intersect) ? true : oTarget.cursorIsOver;
|
| 1146 |
|
|
} else {
|
| 1147 |
|
|
return false;
|
| 1148 |
|
|
}
|
| 1149 |
|
|
},
|
| 1150 |
|
|
|
| 1151 |
|
|
/**
|
| 1152 |
|
|
* unload event handler
|
| 1153 |
|
|
* @method _onUnload
|
| 1154 |
|
|
* @private
|
| 1155 |
|
|
* @static
|
| 1156 |
|
|
*/
|
| 1157 |
|
|
_onUnload: function(e, me) {
|
| 1158 |
|
|
this.unregAll();
|
| 1159 |
|
|
},
|
| 1160 |
|
|
|
| 1161 |
|
|
/**
|
| 1162 |
|
|
* Cleans up the drag and drop events and objects.
|
| 1163 |
|
|
* @method unregAll
|
| 1164 |
|
|
* @private
|
| 1165 |
|
|
* @static
|
| 1166 |
|
|
*/
|
| 1167 |
|
|
unregAll: function() {
|
| 1168 |
|
|
YAHOO.log("unregister all", "info", "DragDropMgr");
|
| 1169 |
|
|
|
| 1170 |
|
|
if (this.dragCurrent) {
|
| 1171 |
|
|
this.stopDrag();
|
| 1172 |
|
|
this.dragCurrent = null;
|
| 1173 |
|
|
}
|
| 1174 |
|
|
|
| 1175 |
|
|
this._execOnAll("unreg", []);
|
| 1176 |
|
|
|
| 1177 |
|
|
//for (var i in this.elementCache) {
|
| 1178 |
|
|
//delete this.elementCache[i];
|
| 1179 |
|
|
//}
|
| 1180 |
|
|
//this.elementCache = {};
|
| 1181 |
|
|
|
| 1182 |
|
|
this.ids = {};
|
| 1183 |
|
|
},
|
| 1184 |
|
|
|
| 1185 |
|
|
/**
|
| 1186 |
|
|
* A cache of DOM elements
|
| 1187 |
|
|
* @property elementCache
|
| 1188 |
|
|
* @private
|
| 1189 |
|
|
* @static
|
| 1190 |
|
|
* @deprecated elements are not cached now
|
| 1191 |
|
|
*/
|
| 1192 |
|
|
elementCache: {},
|
| 1193 |
|
|
|
| 1194 |
|
|
/**
|
| 1195 |
|
|
* Get the wrapper for the DOM element specified
|
| 1196 |
|
|
* @method getElWrapper
|
| 1197 |
|
|
* @param {String} id the id of the element to get
|
| 1198 |
|
|
* @return {YAHOO.util.DDM.ElementWrapper} the wrapped element
|
| 1199 |
|
|
* @private
|
| 1200 |
|
|
* @deprecated This wrapper isn't that useful
|
| 1201 |
|
|
* @static
|
| 1202 |
|
|
*/
|
| 1203 |
|
|
getElWrapper: function(id) {
|
| 1204 |
|
|
var oWrapper = this.elementCache[id];
|
| 1205 |
|
|
if (!oWrapper || !oWrapper.el) {
|
| 1206 |
|
|
oWrapper = this.elementCache[id] =
|
| 1207 |
|
|
new this.ElementWrapper(YAHOO.util.Dom.get(id));
|
| 1208 |
|
|
}
|
| 1209 |
|
|
return oWrapper;
|
| 1210 |
|
|
},
|
| 1211 |
|
|
|
| 1212 |
|
|
/**
|
| 1213 |
|
|
* Returns the actual DOM element
|
| 1214 |
|
|
* @method getElement
|
| 1215 |
|
|
* @param {String} id the id of the elment to get
|
| 1216 |
|
|
* @return {Object} The element
|
| 1217 |
|
|
* @deprecated use YAHOO.util.Dom.get instead
|
| 1218 |
|
|
* @static
|
| 1219 |
|
|
*/
|
| 1220 |
|
|
getElement: function(id) {
|
| 1221 |
|
|
return YAHOO.util.Dom.get(id);
|
| 1222 |
|
|
},
|
| 1223 |
|
|
|
| 1224 |
|
|
/**
|
| 1225 |
|
|
* Returns the style property for the DOM element (i.e.,
|
| 1226 |
|
|
* document.getElById(id).style)
|
| 1227 |
|
|
* @method getCss
|
| 1228 |
|
|
* @param {String} id the id of the elment to get
|
| 1229 |
|
|
* @return {Object} The style property of the element
|
| 1230 |
|
|
* @deprecated use YAHOO.util.Dom instead
|
| 1231 |
|
|
* @static
|
| 1232 |
|
|
*/
|
| 1233 |
|
|
getCss: function(id) {
|
| 1234 |
|
|
var el = YAHOO.util.Dom.get(id);
|
| 1235 |
|
|
return (el) ? el.style : null;
|
| 1236 |
|
|
},
|
| 1237 |
|
|
|
| 1238 |
|
|
/**
|
| 1239 |
|
|
* Inner class for cached elements
|
| 1240 |
|
|
* @class DragDropMgr.ElementWrapper
|
| 1241 |
|
|
* @for DragDropMgr
|
| 1242 |
|
|
* @private
|
| 1243 |
|
|
* @deprecated
|
| 1244 |
|
|
*/
|
| 1245 |
|
|
ElementWrapper: function(el) {
|
| 1246 |
|
|
/**
|
| 1247 |
|
|
* The element
|
| 1248 |
|
|
* @property el
|
| 1249 |
|
|
*/
|
| 1250 |
|
|
this.el = el || null;
|
| 1251 |
|
|
/**
|
| 1252 |
|
|
* The element id
|
| 1253 |
|
|
* @property id
|
| 1254 |
|
|
*/
|
| 1255 |
|
|
this.id = this.el && el.id;
|
| 1256 |
|
|
/**
|
| 1257 |
|
|
* A reference to the style property
|
| 1258 |
|
|
* @property css
|
| 1259 |
|
|
*/
|
| 1260 |
|
|
this.css = this.el && el.style;
|
| 1261 |
|
|
},
|
| 1262 |
|
|
|
| 1263 |
|
|
/**
|
| 1264 |
|
|
* Returns the X position of an html element
|
| 1265 |
|
|
* @method getPosX
|
| 1266 |
|
|
* @param el the element for which to get the position
|
| 1267 |
|
|
* @return {int} the X coordinate
|
| 1268 |
|
|
* @for DragDropMgr
|
| 1269 |
|
|
* @deprecated use YAHOO.util.Dom.getX instead
|
| 1270 |
|
|
* @static
|
| 1271 |
|
|
*/
|
| 1272 |
|
|
getPosX: function(el) {
|
| 1273 |
|
|
return YAHOO.util.Dom.getX(el);
|
| 1274 |
|
|
},
|
| 1275 |
|
|
|
| 1276 |
|
|
/**
|
| 1277 |
|
|
* Returns the Y position of an html element
|
| 1278 |
|
|
* @method getPosY
|
| 1279 |
|
|
* @param el the element for which to get the position
|
| 1280 |
|
|
* @return {int} the Y coordinate
|
| 1281 |
|
|
* @deprecated use YAHOO.util.Dom.getY instead
|
| 1282 |
|
|
* @static
|
| 1283 |
|
|
*/
|
| 1284 |
|
|
getPosY: function(el) {
|
| 1285 |
|
|
return YAHOO.util.Dom.getY(el);
|
| 1286 |
|
|
},
|
| 1287 |
|
|
|
| 1288 |
|
|
/**
|
| 1289 |
|
|
* Swap two nodes. In IE, we use the native method, for others we
|
| 1290 |
|
|
* emulate the IE behavior
|
| 1291 |
|
|
* @method swapNode
|
| 1292 |
|
|
* @param n1 the first node to swap
|
| 1293 |
|
|
* @param n2 the other node to swap
|
| 1294 |
|
|
* @static
|
| 1295 |
|
|
*/
|
| 1296 |
|
|
swapNode: function(n1, n2) {
|
| 1297 |
|
|
if (n1.swapNode) {
|
| 1298 |
|
|
n1.swapNode(n2);
|
| 1299 |
|
|
} else {
|
| 1300 |
|
|
var p = n2.parentNode;
|
| 1301 |
|
|
var s = n2.nextSibling;
|
| 1302 |
|
|
|
| 1303 |
|
|
if (s == n1) {
|
| 1304 |
|
|
p.insertBefore(n1, n2);
|
| 1305 |
|
|
} else if (n2 == n1.nextSibling) {
|
| 1306 |
|
|
p.insertBefore(n2, n1);
|
| 1307 |
|
|
} else {
|
| 1308 |
|
|
n1.parentNode.replaceChild(n2, n1);
|
| 1309 |
|
|
p.insertBefore(n1, s);
|
| 1310 |
|
|
}
|
| 1311 |
|
|
}
|
| 1312 |
|
|
},
|
| 1313 |
|
|
|
| 1314 |
|
|
/**
|
| 1315 |
|
|
* Returns the current scroll position
|
| 1316 |
|
|
* @method getScroll
|
| 1317 |
|
|
* @private
|
| 1318 |
|
|
* @static
|
| 1319 |
|
|
*/
|
| 1320 |
|
|
getScroll: function () {
|
| 1321 |
|
|
var t, l, dde=document.documentElement, db=document.body;
|
| 1322 |
|
|
if (dde && (dde.scrollTop || dde.scrollLeft)) {
|
| 1323 |
|
|
t = dde.scrollTop;
|
| 1324 |
|
|
l = dde.scrollLeft;
|
| 1325 |
|
|
} else if (db) {
|
| 1326 |
|
|
t = db.scrollTop;
|
| 1327 |
|
|
l = db.scrollLeft;
|
| 1328 |
|
|
} else {
|
| 1329 |
|
|
YAHOO.log("could not get scroll property", "info", "DragDropMgr");
|
| 1330 |
|
|
}
|
| 1331 |
|
|
return { top: t, left: l };
|
| 1332 |
|
|
},
|
| 1333 |
|
|
|
| 1334 |
|
|
/**
|
| 1335 |
|
|
* Returns the specified element style property
|
| 1336 |
|
|
* @method getStyle
|
| 1337 |
|
|
* @param {HTMLElement} el the element
|
| 1338 |
|
|
* @param {string} styleProp the style property
|
| 1339 |
|
|
* @return {string} The value of the style property
|
| 1340 |
|
|
* @deprecated use YAHOO.util.Dom.getStyle
|
| 1341 |
|
|
* @static
|
| 1342 |
|
|
*/
|
| 1343 |
|
|
getStyle: function(el, styleProp) {
|
| 1344 |
|
|
return YAHOO.util.Dom.getStyle(el, styleProp);
|
| 1345 |
|
|
},
|
| 1346 |
|
|
|
| 1347 |
|
|
/**
|
| 1348 |
|
|
* Gets the scrollTop
|
| 1349 |
|
|
* @method getScrollTop
|
| 1350 |
|
|
* @return {int} the document's scrollTop
|
| 1351 |
|
|
* @static
|
| 1352 |
|
|
*/
|
| 1353 |
|
|
getScrollTop: function () { return this.getScroll().top; },
|
| 1354 |
|
|
|
| 1355 |
|
|
/**
|
| 1356 |
|
|
* Gets the scrollLeft
|
| 1357 |
|
|
* @method getScrollLeft
|
| 1358 |
|
|
* @return {int} the document's scrollTop
|
| 1359 |
|
|
* @static
|
| 1360 |
|
|
*/
|
| 1361 |
|
|
getScrollLeft: function () { return this.getScroll().left; },
|
| 1362 |
|
|
|
| 1363 |
|
|
/**
|
| 1364 |
|
|
* Sets the x/y position of an element to the location of the
|
| 1365 |
|
|
* target element.
|
| 1366 |
|
|
* @method moveToEl
|
| 1367 |
|
|
* @param {HTMLElement} moveEl The element to move
|
| 1368 |
|
|
* @param {HTMLElement} targetEl The position reference element
|
| 1369 |
|
|
* @static
|
| 1370 |
|
|
*/
|
| 1371 |
|
|
moveToEl: function (moveEl, targetEl) {
|
| 1372 |
|
|
var aCoord = YAHOO.util.Dom.getXY(targetEl);
|
| 1373 |
|
|
YAHOO.log("moveToEl: " + aCoord, "info", "DragDropMgr");
|
| 1374 |
|
|
YAHOO.util.Dom.setXY(moveEl, aCoord);
|
| 1375 |
|
|
},
|
| 1376 |
|
|
|
| 1377 |
|
|
/**
|
| 1378 |
|
|
* Gets the client height
|
| 1379 |
|
|
* @method getClientHeight
|
| 1380 |
|
|
* @return {int} client height in px
|
| 1381 |
|
|
* @deprecated use YAHOO.util.Dom.getViewportHeight instead
|
| 1382 |
|
|
* @static
|
| 1383 |
|
|
*/
|
| 1384 |
|
|
getClientHeight: function() {
|
| 1385 |
|
|
return YAHOO.util.Dom.getViewportHeight();
|
| 1386 |
|
|
},
|
| 1387 |
|
|
|
| 1388 |
|
|
/**
|
| 1389 |
|
|
* Gets the client width
|
| 1390 |
|
|
* @method getClientWidth
|
| 1391 |
|
|
* @return {int} client width in px
|
| 1392 |
|
|
* @deprecated use YAHOO.util.Dom.getViewportWidth instead
|
| 1393 |
|
|
* @static
|
| 1394 |
|
|
*/
|
| 1395 |
|
|
getClientWidth: function() {
|
| 1396 |
|
|
return YAHOO.util.Dom.getViewportWidth();
|
| 1397 |
|
|
},
|
| 1398 |
|
|
|
| 1399 |
|
|
/**
|
| 1400 |
|
|
* Numeric array sort function
|
| 1401 |
|
|
* @method numericSort
|
| 1402 |
|
|
* @static
|
| 1403 |
|
|
*/
|
| 1404 |
|
|
numericSort: function(a, b) { return (a - b); },
|
| 1405 |
|
|
|
| 1406 |
|
|
/**
|
| 1407 |
|
|
* Internal counter
|
| 1408 |
|
|
* @property _timeoutCount
|
| 1409 |
|
|
* @private
|
| 1410 |
|
|
* @static
|
| 1411 |
|
|
*/
|
| 1412 |
|
|
_timeoutCount: 0,
|
| 1413 |
|
|
|
| 1414 |
|
|
/**
|
| 1415 |
|
|
* Trying to make the load order less important. Without this we get
|
| 1416 |
|
|
* an error if this file is loaded before the Event Utility.
|
| 1417 |
|
|
* @method _addListeners
|
| 1418 |
|
|
* @private
|
| 1419 |
|
|
* @static
|
| 1420 |
|
|
*/
|
| 1421 |
|
|
_addListeners: function() {
|
| 1422 |
|
|
var DDM = YAHOO.util.DDM;
|
| 1423 |
|
|
if ( YAHOO.util.Event && document ) {
|
| 1424 |
|
|
DDM._onLoad();
|
| 1425 |
|
|
} else {
|
| 1426 |
|
|
if (DDM._timeoutCount > 2000) {
|
| 1427 |
|
|
YAHOO.log("DragDrop requires the Event Utility", "error", "DragDropMgr");
|
| 1428 |
|
|
} else {
|
| 1429 |
|
|
setTimeout(DDM._addListeners, 10);
|
| 1430 |
|
|
if (document && document.body) {
|
| 1431 |
|
|
DDM._timeoutCount += 1;
|
| 1432 |
|
|
}
|
| 1433 |
|
|
}
|
| 1434 |
|
|
}
|
| 1435 |
|
|
},
|
| 1436 |
|
|
|
| 1437 |
|
|
/**
|
| 1438 |
|
|
* Recursively searches the immediate parent and all child nodes for
|
| 1439 |
|
|
* the handle element in order to determine wheter or not it was
|
| 1440 |
|
|
* clicked.
|
| 1441 |
|
|
* @method handleWasClicked
|
| 1442 |
|
|
* @param node the html element to inspect
|
| 1443 |
|
|
* @static
|
| 1444 |
|
|
*/
|
| 1445 |
|
|
handleWasClicked: function(node, id) {
|
| 1446 |
|
|
if (this.isHandle(id, node.id)) {
|
| 1447 |
|
|
YAHOO.log("clicked node is a handle", "info", "DragDropMgr");
|
| 1448 |
|
|
return true;
|
| 1449 |
|
|
} else {
|
| 1450 |
|
|
// check to see if this is a text node child of the one we want
|
| 1451 |
|
|
var p = node.parentNode;
|
| 1452 |
|
|
// YAHOO.log("p: " + p);
|
| 1453 |
|
|
|
| 1454 |
|
|
while (p) {
|
| 1455 |
|
|
if (this.isHandle(id, p.id)) {
|
| 1456 |
|
|
return true;
|
| 1457 |
|
|
} else {
|
| 1458 |
|
|
YAHOO.log(p.id + " is not a handle", "info", "DragDropMgr");
|
| 1459 |
|
|
p = p.parentNode;
|
| 1460 |
|
|
}
|
| 1461 |
|
|
}
|
| 1462 |
|
|
}
|
| 1463 |
|
|
|
| 1464 |
|
|
return false;
|
| 1465 |
|
|
}
|
| 1466 |
|
|
|
| 1467 |
|
|
};
|
| 1468 |
|
|
|
| 1469 |
|
|
}();
|
| 1470 |
|
|
|
| 1471 |
|
|
// shorter alias, save a few bytes
|
| 1472 |
|
|
YAHOO.util.DDM = YAHOO.util.DragDropMgr;
|
| 1473 |
|
|
YAHOO.util.DDM._addListeners();
|
| 1474 |
|
|
|
| 1475 |
|
|
}
|
| 1476 |
|
|
|
| 1477 |
|
|
(function() {
|
| 1478 |
|
|
|
| 1479 |
|
|
var Event=YAHOO.util.Event;
|
| 1480 |
|
|
var Dom=YAHOO.util.Dom;
|
| 1481 |
|
|
|
| 1482 |
|
|
/**
|
| 1483 |
|
|
* Defines the interface and base operation of items that that can be
|
| 1484 |
|
|
* dragged or can be drop targets. It was designed to be extended, overriding
|
| 1485 |
|
|
* the event handlers for startDrag, onDrag, onDragOver, onDragOut.
|
| 1486 |
|
|
* Up to three html elements can be associated with a DragDrop instance:
|
| 1487 |
|
|
* <ul>
|
| 1488 |
|
|
* <li>linked element: the element that is passed into the constructor.
|
| 1489 |
|
|
* This is the element which defines the boundaries for interaction with
|
| 1490 |
|
|
* other DragDrop objects.</li>
|
| 1491 |
|
|
* <li>handle element(s): The drag operation only occurs if the element that
|
| 1492 |
|
|
* was clicked matches a handle element. By default this is the linked
|
| 1493 |
|
|
* element, but there are times that you will want only a portion of the
|
| 1494 |
|
|
* linked element to initiate the drag operation, and the setHandleElId()
|
| 1495 |
|
|
* method provides a way to define this.</li>
|
| 1496 |
|
|
* <li>drag element: this represents an the element that would be moved along
|
| 1497 |
|
|
* with the cursor during a drag operation. By default, this is the linked
|
| 1498 |
|
|
* element itself as in {@link YAHOO.util.DD}. setDragElId() lets you define
|
| 1499 |
|
|
* a separate element that would be moved, as in {@link YAHOO.util.DDProxy}
|
| 1500 |
|
|
* </li>
|
| 1501 |
|
|
* </ul>
|
| 1502 |
|
|
* This class should not be instantiated until the onload event to ensure that
|
| 1503 |
|
|
* the associated elements are available.
|
| 1504 |
|
|
* The following would define a DragDrop obj that would interact with any
|
| 1505 |
|
|
* other DragDrop obj in the "group1" group:
|
| 1506 |
|
|
* <pre>
|
| 1507 |
|
|
* dd = new YAHOO.util.DragDrop("div1", "group1");
|
| 1508 |
|
|
* </pre>
|
| 1509 |
|
|
* Since none of the event handlers have been implemented, nothing would
|
| 1510 |
|
|
* actually happen if you were to run the code above. Normally you would
|
| 1511 |
|
|
* override this class or one of the default implementations, but you can
|
| 1512 |
|
|
* also override the methods you want on an instance of the class...
|
| 1513 |
|
|
* <pre>
|
| 1514 |
|
|
* dd.onDragDrop = function(e, id) {
|
| 1515 |
|
|
* alert("dd was dropped on " + id);
|
| 1516 |
|
|
* }
|
| 1517 |
|
|
* </pre>
|
| 1518 |
|
|
* @namespace YAHOO.util
|
| 1519 |
|
|
* @class DragDrop
|
| 1520 |
|
|
* @constructor
|
| 1521 |
|
|
* @param {String} id of the element that is linked to this instance
|
| 1522 |
|
|
* @param {String} sGroup the group of related DragDrop objects
|
| 1523 |
|
|
* @param {object} config an object containing configurable attributes
|
| 1524 |
|
|
* Valid properties for DragDrop:
|
| 1525 |
|
|
* padding, isTarget, maintainOffset, primaryButtonOnly,
|
| 1526 |
|
|
*/
|
| 1527 |
|
|
YAHOO.util.DragDrop = function(id, sGroup, config) {
|
| 1528 |
|
|
if (id) {
|
| 1529 |
|
|
this.init(id, sGroup, config);
|
| 1530 |
|
|
}
|
| 1531 |
|
|
};
|
| 1532 |
|
|
|
| 1533 |
|
|
YAHOO.util.DragDrop.prototype = {
|
| 1534 |
|
|
|
| 1535 |
|
|
/**
|
| 1536 |
|
|
* The id of the element associated with this object. This is what we
|
| 1537 |
|
|
* refer to as the "linked element" because the size and position of
|
| 1538 |
|
|
* this element is used to determine when the drag and drop objects have
|
| 1539 |
|
|
* interacted.
|
| 1540 |
|
|
* @property id
|
| 1541 |
|
|
* @type String
|
| 1542 |
|
|
*/
|
| 1543 |
|
|
id: null,
|
| 1544 |
|
|
|
| 1545 |
|
|
/**
|
| 1546 |
|
|
* Configuration attributes passed into the constructor
|
| 1547 |
|
|
* @property config
|
| 1548 |
|
|
* @type object
|
| 1549 |
|
|
*/
|
| 1550 |
|
|
config: null,
|
| 1551 |
|
|
|
| 1552 |
|
|
/**
|
| 1553 |
|
|
* The id of the element that will be dragged. By default this is same
|
| 1554 |
|
|
* as the linked element , but could be changed to another element. Ex:
|
| 1555 |
|
|
* YAHOO.util.DDProxy
|
| 1556 |
|
|
* @property dragElId
|
| 1557 |
|
|
* @type String
|
| 1558 |
|
|
* @private
|
| 1559 |
|
|
*/
|
| 1560 |
|
|
dragElId: null,
|
| 1561 |
|
|
|
| 1562 |
|
|
/**
|
| 1563 |
|
|
* the id of the element that initiates the drag operation. By default
|
| 1564 |
|
|
* this is the linked element, but could be changed to be a child of this
|
| 1565 |
|
|
* element. This lets us do things like only starting the drag when the
|
| 1566 |
|
|
* header element within the linked html element is clicked.
|
| 1567 |
|
|
* @property handleElId
|
| 1568 |
|
|
* @type String
|
| 1569 |
|
|
* @private
|
| 1570 |
|
|
*/
|
| 1571 |
|
|
handleElId: null,
|
| 1572 |
|
|
|
| 1573 |
|
|
/**
|
| 1574 |
|
|
* An associative array of HTML tags that will be ignored if clicked.
|
| 1575 |
|
|
* @property invalidHandleTypes
|
| 1576 |
|
|
* @type {string: string}
|
| 1577 |
|
|
*/
|
| 1578 |
|
|
invalidHandleTypes: null,
|
| 1579 |
|
|
|
| 1580 |
|
|
/**
|
| 1581 |
|
|
* An associative array of ids for elements that will be ignored if clicked
|
| 1582 |
|
|
* @property invalidHandleIds
|
| 1583 |
|
|
* @type {string: string}
|
| 1584 |
|
|
*/
|
| 1585 |
|
|
invalidHandleIds: null,
|
| 1586 |
|
|
|
| 1587 |
|
|
/**
|
| 1588 |
|
|
* An indexted array of css class names for elements that will be ignored
|
| 1589 |
|
|
* if clicked.
|
| 1590 |
|
|
* @property invalidHandleClasses
|
| 1591 |
|
|
* @type string[]
|
| 1592 |
|
|
*/
|
| 1593 |
|
|
invalidHandleClasses: null,
|
| 1594 |
|
|
|
| 1595 |
|
|
/**
|
| 1596 |
|
|
* The linked element's absolute X position at the time the drag was
|
| 1597 |
|
|
* started
|
| 1598 |
|
|
* @property startPageX
|
| 1599 |
|
|
* @type int
|
| 1600 |
|
|
* @private
|
| 1601 |
|
|
*/
|
| 1602 |
|
|
startPageX: 0,
|
| 1603 |
|
|
|
| 1604 |
|
|
/**
|
| 1605 |
|
|
* The linked element's absolute X position at the time the drag was
|
| 1606 |
|
|
* started
|
| 1607 |
|
|
* @property startPageY
|
| 1608 |
|
|
* @type int
|
| 1609 |
|
|
* @private
|
| 1610 |
|
|
*/
|
| 1611 |
|
|
startPageY: 0,
|
| 1612 |
|
|
|
| 1613 |
|
|
/**
|
| 1614 |
|
|
* The group defines a logical collection of DragDrop objects that are
|
| 1615 |
|
|
* related. Instances only get events when interacting with other
|
| 1616 |
|
|
* DragDrop object in the same group. This lets us define multiple
|
| 1617 |
|
|
* groups using a single DragDrop subclass if we want.
|
| 1618 |
|
|
* @property groups
|
| 1619 |
|
|
* @type {string: string}
|
| 1620 |
|
|
*/
|
| 1621 |
|
|
groups: null,
|
| 1622 |
|
|
|
| 1623 |
|
|
/**
|
| 1624 |
|
|
* Individual drag/drop instances can be locked. This will prevent
|
| 1625 |
|
|
* onmousedown start drag.
|
| 1626 |
|
|
* @property locked
|
| 1627 |
|
|
* @type boolean
|
| 1628 |
|
|
* @private
|
| 1629 |
|
|
*/
|
| 1630 |
|
|
locked: false,
|
| 1631 |
|
|
|
| 1632 |
|
|
/**
|
| 1633 |
|
|
* Lock this instance
|
| 1634 |
|
|
* @method lock
|
| 1635 |
|
|
*/
|
| 1636 |
|
|
lock: function() { this.locked = true; },
|
| 1637 |
|
|
|
| 1638 |
|
|
/**
|
| 1639 |
|
|
* Unlock this instace
|
| 1640 |
|
|
* @method unlock
|
| 1641 |
|
|
*/
|
| 1642 |
|
|
unlock: function() { this.locked = false; },
|
| 1643 |
|
|
|
| 1644 |
|
|
/**
|
| 1645 |
|
|
* By default, all instances can be a drop target. This can be disabled by
|
| 1646 |
|
|
* setting isTarget to false.
|
| 1647 |
|
|
* @property isTarget
|
| 1648 |
|
|
* @type boolean
|
| 1649 |
|
|
*/
|
| 1650 |
|
|
isTarget: true,
|
| 1651 |
|
|
|
| 1652 |
|
|
/**
|
| 1653 |
|
|
* The padding configured for this drag and drop object for calculating
|
| 1654 |
|
|
* the drop zone intersection with this object.
|
| 1655 |
|
|
* @property padding
|
| 1656 |
|
|
* @type int[]
|
| 1657 |
|
|
*/
|
| 1658 |
|
|
padding: null,
|
| 1659 |
|
|
/**
|
| 1660 |
|
|
* If this flag is true, do not fire drop events. The element is a drag only element (for movement not dropping)
|
| 1661 |
|
|
* @property dragOnly
|
| 1662 |
|
|
* @type Boolean
|
| 1663 |
|
|
*/
|
| 1664 |
|
|
dragOnly: false,
|
| 1665 |
|
|
|
| 1666 |
|
|
/**
|
| 1667 |
|
|
* Cached reference to the linked element
|
| 1668 |
|
|
* @property _domRef
|
| 1669 |
|
|
* @private
|
| 1670 |
|
|
*/
|
| 1671 |
|
|
_domRef: null,
|
| 1672 |
|
|
|
| 1673 |
|
|
/**
|
| 1674 |
|
|
* Internal typeof flag
|
| 1675 |
|
|
* @property __ygDragDrop
|
| 1676 |
|
|
* @private
|
| 1677 |
|
|
*/
|
| 1678 |
|
|
__ygDragDrop: true,
|
| 1679 |
|
|
|
| 1680 |
|
|
/**
|
| 1681 |
|
|
* Set to true when horizontal contraints are applied
|
| 1682 |
|
|
* @property constrainX
|
| 1683 |
|
|
* @type boolean
|
| 1684 |
|
|
* @private
|
| 1685 |
|
|
*/
|
| 1686 |
|
|
constrainX: false,
|
| 1687 |
|
|
|
| 1688 |
|
|
/**
|
| 1689 |
|
|
* Set to true when vertical contraints are applied
|
| 1690 |
|
|
* @property constrainY
|
| 1691 |
|
|
* @type boolean
|
| 1692 |
|
|
* @private
|
| 1693 |
|
|
*/
|
| 1694 |
|
|
constrainY: false,
|
| 1695 |
|
|
|
| 1696 |
|
|
/**
|
| 1697 |
|
|
* The left constraint
|
| 1698 |
|
|
* @property minX
|
| 1699 |
|
|
* @type int
|
| 1700 |
|
|
* @private
|
| 1701 |
|
|
*/
|
| 1702 |
|
|
minX: 0,
|
| 1703 |
|
|
|
| 1704 |
|
|
/**
|
| 1705 |
|
|
* The right constraint
|
| 1706 |
|
|
* @property maxX
|
| 1707 |
|
|
* @type int
|
| 1708 |
|
|
* @private
|
| 1709 |
|
|
*/
|
| 1710 |
|
|
maxX: 0,
|
| 1711 |
|
|
|
| 1712 |
|
|
/**
|
| 1713 |
|
|
* The up constraint
|
| 1714 |
|
|
* @property minY
|
| 1715 |
|
|
* @type int
|
| 1716 |
|
|
* @type int
|
| 1717 |
|
|
* @private
|
| 1718 |
|
|
*/
|
| 1719 |
|
|
minY: 0,
|
| 1720 |
|
|
|
| 1721 |
|
|
/**
|
| 1722 |
|
|
* The down constraint
|
| 1723 |
|
|
* @property maxY
|
| 1724 |
|
|
* @type int
|
| 1725 |
|
|
* @private
|
| 1726 |
|
|
*/
|
| 1727 |
|
|
maxY: 0,
|
| 1728 |
|
|
|
| 1729 |
|
|
/**
|
| 1730 |
|
|
* The difference between the click position and the source element's location
|
| 1731 |
|
|
* @property deltaX
|
| 1732 |
|
|
* @type int
|
| 1733 |
|
|
* @private
|
| 1734 |
|
|
*/
|
| 1735 |
|
|
deltaX: 0,
|
| 1736 |
|
|
|
| 1737 |
|
|
/**
|
| 1738 |
|
|
* The difference between the click position and the source element's location
|
| 1739 |
|
|
* @property deltaY
|
| 1740 |
|
|
* @type int
|
| 1741 |
|
|
* @private
|
| 1742 |
|
|
*/
|
| 1743 |
|
|
deltaY: 0,
|
| 1744 |
|
|
|
| 1745 |
|
|
/**
|
| 1746 |
|
|
* Maintain offsets when we resetconstraints. Set to true when you want
|
| 1747 |
|
|
* the position of the element relative to its parent to stay the same
|
| 1748 |
|
|
* when the page changes
|
| 1749 |
|
|
*
|
| 1750 |
|
|
* @property maintainOffset
|
| 1751 |
|
|
* @type boolean
|
| 1752 |
|
|
*/
|
| 1753 |
|
|
maintainOffset: false,
|
| 1754 |
|
|
|
| 1755 |
|
|
/**
|
| 1756 |
|
|
* Array of pixel locations the element will snap to if we specified a
|
| 1757 |
|
|
* horizontal graduation/interval. This array is generated automatically
|
| 1758 |
|
|
* when you define a tick interval.
|
| 1759 |
|
|
* @property xTicks
|
| 1760 |
|
|
* @type int[]
|
| 1761 |
|
|
*/
|
| 1762 |
|
|
xTicks: null,
|
| 1763 |
|
|
|
| 1764 |
|
|
/**
|
| 1765 |
|
|
* Array of pixel locations the element will snap to if we specified a
|
| 1766 |
|
|
* vertical graduation/interval. This array is generated automatically
|
| 1767 |
|
|
* when you define a tick interval.
|
| 1768 |
|
|
* @property yTicks
|
| 1769 |
|
|
* @type int[]
|
| 1770 |
|
|
*/
|
| 1771 |
|
|
yTicks: null,
|
| 1772 |
|
|
|
| 1773 |
|
|
/**
|
| 1774 |
|
|
* By default the drag and drop instance will only respond to the primary
|
| 1775 |
|
|
* button click (left button for a right-handed mouse). Set to true to
|
| 1776 |
|
|
* allow drag and drop to start with any mouse click that is propogated
|
| 1777 |
|
|
* by the browser
|
| 1778 |
|
|
* @property primaryButtonOnly
|
| 1779 |
|
|
* @type boolean
|
| 1780 |
|
|
*/
|
| 1781 |
|
|
primaryButtonOnly: true,
|
| 1782 |
|
|
|
| 1783 |
|
|
/**
|
| 1784 |
|
|
* The availabe property is false until the linked dom element is accessible.
|
| 1785 |
|
|
* @property available
|
| 1786 |
|
|
* @type boolean
|
| 1787 |
|
|
*/
|
| 1788 |
|
|
available: false,
|
| 1789 |
|
|
|
| 1790 |
|
|
/**
|
| 1791 |
|
|
* By default, drags can only be initiated if the mousedown occurs in the
|
| 1792 |
|
|
* region the linked element is. This is done in part to work around a
|
| 1793 |
|
|
* bug in some browsers that mis-report the mousedown if the previous
|
| 1794 |
|
|
* mouseup happened outside of the window. This property is set to true
|
| 1795 |
|
|
* if outer handles are defined.
|
| 1796 |
|
|
*
|
| 1797 |
|
|
* @property hasOuterHandles
|
| 1798 |
|
|
* @type boolean
|
| 1799 |
|
|
* @default false
|
| 1800 |
|
|
*/
|
| 1801 |
|
|
hasOuterHandles: false,
|
| 1802 |
|
|
|
| 1803 |
|
|
/**
|
| 1804 |
|
|
* Property that is assigned to a drag and drop object when testing to
|
| 1805 |
|
|
* see if it is being targeted by another dd object. This property
|
| 1806 |
|
|
* can be used in intersect mode to help determine the focus of
|
| 1807 |
|
|
* the mouse interaction. DDM.getBestMatch uses this property first to
|
| 1808 |
|
|
* determine the closest match in INTERSECT mode when multiple targets
|
| 1809 |
|
|
* are part of the same interaction.
|
| 1810 |
|
|
* @property cursorIsOver
|
| 1811 |
|
|
* @type boolean
|
| 1812 |
|
|
*/
|
| 1813 |
|
|
cursorIsOver: false,
|
| 1814 |
|
|
|
| 1815 |
|
|
/**
|
| 1816 |
|
|
* Property that is assigned to a drag and drop object when testing to
|
| 1817 |
|
|
* see if it is being targeted by another dd object. This is a region
|
| 1818 |
|
|
* that represents the area the draggable element overlaps this target.
|
| 1819 |
|
|
* DDM.getBestMatch uses this property to compare the size of the overlap
|
| 1820 |
|
|
* to that of other targets in order to determine the closest match in
|
| 1821 |
|
|
* INTERSECT mode when multiple targets are part of the same interaction.
|
| 1822 |
|
|
* @property overlap
|
| 1823 |
|
|
* @type YAHOO.util.Region
|
| 1824 |
|
|
*/
|
| 1825 |
|
|
overlap: null,
|
| 1826 |
|
|
|
| 1827 |
|
|
/**
|
| 1828 |
|
|
* Code that executes immediately before the startDrag event
|
| 1829 |
|
|
* @method b4StartDrag
|
| 1830 |
|
|
* @private
|
| 1831 |
|
|
*/
|
| 1832 |
|
|
b4StartDrag: function(x, y) { },
|
| 1833 |
|
|
|
| 1834 |
|
|
/**
|
| 1835 |
|
|
* Abstract method called after a drag/drop object is clicked
|
| 1836 |
|
|
* and the drag or mousedown time thresholds have beeen met.
|
| 1837 |
|
|
* @method startDrag
|
| 1838 |
|
|
* @param {int} X click location
|
| 1839 |
|
|
* @param {int} Y click location
|
| 1840 |
|
|
*/
|
| 1841 |
|
|
startDrag: function(x, y) { /* override this */ },
|
| 1842 |
|
|
|
| 1843 |
|
|
/**
|
| 1844 |
|
|
* Code that executes immediately before the onDrag event
|
| 1845 |
|
|
* @method b4Drag
|
| 1846 |
|
|
* @private
|
| 1847 |
|
|
*/
|
| 1848 |
|
|
b4Drag: function(e) { },
|
| 1849 |
|
|
|
| 1850 |
|
|
/**
|
| 1851 |
|
|
* Abstract method called during the onMouseMove event while dragging an
|
| 1852 |
|
|
* object.
|
| 1853 |
|
|
* @method onDrag
|
| 1854 |
|
|
* @param {Event} e the mousemove event
|
| 1855 |
|
|
*/
|
| 1856 |
|
|
onDrag: function(e) { /* override this */ },
|
| 1857 |
|
|
|
| 1858 |
|
|
/**
|
| 1859 |
|
|
* Abstract method called when this element fist begins hovering over
|
| 1860 |
|
|
* another DragDrop obj
|
| 1861 |
|
|
* @method onDragEnter
|
| 1862 |
|
|
* @param {Event} e the mousemove event
|
| 1863 |
|
|
* @param {String|DragDrop[]} id In POINT mode, the element
|
| 1864 |
|
|
* id this is hovering over. In INTERSECT mode, an array of one or more
|
| 1865 |
|
|
* dragdrop items being hovered over.
|
| 1866 |
|
|
*/
|
| 1867 |
|
|
onDragEnter: function(e, id) { /* override this */ },
|
| 1868 |
|
|
|
| 1869 |
|
|
/**
|
| 1870 |
|
|
* Code that executes immediately before the onDragOver event
|
| 1871 |
|
|
* @method b4DragOver
|
| 1872 |
|
|
* @private
|
| 1873 |
|
|
*/
|
| 1874 |
|
|
b4DragOver: function(e) { },
|
| 1875 |
|
|
|
| 1876 |
|
|
/**
|
| 1877 |
|
|
* Abstract method called when this element is hovering over another
|
| 1878 |
|
|
* DragDrop obj
|
| 1879 |
|
|
* @method onDragOver
|
| 1880 |
|
|
* @param {Event} e the mousemove event
|
| 1881 |
|
|
* @param {String|DragDrop[]} id In POINT mode, the element
|
| 1882 |
|
|
* id this is hovering over. In INTERSECT mode, an array of dd items
|
| 1883 |
|
|
* being hovered over.
|
| 1884 |
|
|
*/
|
| 1885 |
|
|
onDragOver: function(e, id) { /* override this */ },
|
| 1886 |
|
|
|
| 1887 |
|
|
/**
|
| 1888 |
|
|
* Code that executes immediately before the onDragOut event
|
| 1889 |
|
|
* @method b4DragOut
|
| 1890 |
|
|
* @private
|
| 1891 |
|
|
*/
|
| 1892 |
|
|
b4DragOut: function(e) { },
|
| 1893 |
|
|
|
| 1894 |
|
|
/**
|
| 1895 |
|
|
* Abstract method called when we are no longer hovering over an element
|
| 1896 |
|
|
* @method onDragOut
|
| 1897 |
|
|
* @param {Event} e the mousemove event
|
| 1898 |
|
|
* @param {String|DragDrop[]} id In POINT mode, the element
|
| 1899 |
|
|
* id this was hovering over. In INTERSECT mode, an array of dd items
|
| 1900 |
|
|
* that the mouse is no longer over.
|
| 1901 |
|
|
*/
|
| 1902 |
|
|
onDragOut: function(e, id) { /* override this */ },
|
| 1903 |
|
|
|
| 1904 |
|
|
/**
|
| 1905 |
|
|
* Code that executes immediately before the onDragDrop event
|
| 1906 |
|
|
* @method b4DragDrop
|
| 1907 |
|
|
* @private
|
| 1908 |
|
|
*/
|
| 1909 |
|
|
b4DragDrop: function(e) { },
|
| 1910 |
|
|
|
| 1911 |
|
|
/**
|
| 1912 |
|
|
* Abstract method called when this item is dropped on another DragDrop
|
| 1913 |
|
|
* obj
|
| 1914 |
|
|
* @method onDragDrop
|
| 1915 |
|
|
* @param {Event} e the mouseup event
|
| 1916 |
|
|
* @param {String|DragDrop[]} id In POINT mode, the element
|
| 1917 |
|
|
* id this was dropped on. In INTERSECT mode, an array of dd items this
|
| 1918 |
|
|
* was dropped on.
|
| 1919 |
|
|
*/
|
| 1920 |
|
|
onDragDrop: function(e, id) { /* override this */ },
|
| 1921 |
|
|
|
| 1922 |
|
|
/**
|
| 1923 |
|
|
* Abstract method called when this item is dropped on an area with no
|
| 1924 |
|
|
* drop target
|
| 1925 |
|
|
* @method onInvalidDrop
|
| 1926 |
|
|
* @param {Event} e the mouseup event
|
| 1927 |
|
|
*/
|
| 1928 |
|
|
onInvalidDrop: function(e) { /* override this */ },
|
| 1929 |
|
|
|
| 1930 |
|
|
/**
|
| 1931 |
|
|
* Code that executes immediately before the endDrag event
|
| 1932 |
|
|
* @method b4EndDrag
|
| 1933 |
|
|
* @private
|
| 1934 |
|
|
*/
|
| 1935 |
|
|
b4EndDrag: function(e) { },
|
| 1936 |
|
|
|
| 1937 |
|
|
/**
|
| 1938 |
|
|
* Fired when we are done dragging the object
|
| 1939 |
|
|
* @method endDrag
|
| 1940 |
|
|
* @param {Event} e the mouseup event
|
| 1941 |
|
|
*/
|
| 1942 |
|
|
endDrag: function(e) { /* override this */ },
|
| 1943 |
|
|
|
| 1944 |
|
|
/**
|
| 1945 |
|
|
* Code executed immediately before the onMouseDown event
|
| 1946 |
|
|
* @method b4MouseDown
|
| 1947 |
|
|
* @param {Event} e the mousedown event
|
| 1948 |
|
|
* @private
|
| 1949 |
|
|
*/
|
| 1950 |
|
|
b4MouseDown: function(e) { },
|
| 1951 |
|
|
|
| 1952 |
|
|
/**
|
| 1953 |
|
|
* Event handler that fires when a drag/drop obj gets a mousedown
|
| 1954 |
|
|
* @method onMouseDown
|
| 1955 |
|
|
* @param {Event} e the mousedown event
|
| 1956 |
|
|
*/
|
| 1957 |
|
|
onMouseDown: function(e) { /* override this */ },
|
| 1958 |
|
|
|
| 1959 |
|
|
/**
|
| 1960 |
|
|
* Event handler that fires when a drag/drop obj gets a mouseup
|
| 1961 |
|
|
* @method onMouseUp
|
| 1962 |
|
|
* @param {Event} e the mouseup event
|
| 1963 |
|
|
*/
|
| 1964 |
|
|
onMouseUp: function(e) { /* override this */ },
|
| 1965 |
|
|
|
| 1966 |
|
|
/**
|
| 1967 |
|
|
* Override the onAvailable method to do what is needed after the initial
|
| 1968 |
|
|
* position was determined.
|
| 1969 |
|
|
* @method onAvailable
|
| 1970 |
|
|
*/
|
| 1971 |
|
|
onAvailable: function () {
|
| 1972 |
|
|
//this.logger.log("onAvailable (base)");
|
| 1973 |
|
|
},
|
| 1974 |
|
|
|
| 1975 |
|
|
/**
|
| 1976 |
|
|
* Returns a reference to the linked element
|
| 1977 |
|
|
* @method getEl
|
| 1978 |
|
|
* @return {HTMLElement} the html element
|
| 1979 |
|
|
*/
|
| 1980 |
|
|
getEl: function() {
|
| 1981 |
|
|
if (!this._domRef) {
|
| 1982 |
|
|
this._domRef = Dom.get(this.id);
|
| 1983 |
|
|
}
|
| 1984 |
|
|
|
| 1985 |
|
|
return this._domRef;
|
| 1986 |
|
|
},
|
| 1987 |
|
|
|
| 1988 |
|
|
/**
|
| 1989 |
|
|
* Returns a reference to the actual element to drag. By default this is
|
| 1990 |
|
|
* the same as the html element, but it can be assigned to another
|
| 1991 |
|
|
* element. An example of this can be found in YAHOO.util.DDProxy
|
| 1992 |
|
|
* @method getDragEl
|
| 1993 |
|
|
* @return {HTMLElement} the html element
|
| 1994 |
|
|
*/
|
| 1995 |
|
|
getDragEl: function() {
|
| 1996 |
|
|
return Dom.get(this.dragElId);
|
| 1997 |
|
|
},
|
| 1998 |
|
|
|
| 1999 |
|
|
/**
|
| 2000 |
|
|
* Sets up the DragDrop object. Must be called in the constructor of any
|
| 2001 |
|
|
* YAHOO.util.DragDrop subclass
|
| 2002 |
|
|
* @method init
|
| 2003 |
|
|
* @param id the id of the linked element
|
| 2004 |
|
|
* @param {String} sGroup the group of related items
|
| 2005 |
|
|
* @param {object} config configuration attributes
|
| 2006 |
|
|
*/
|
| 2007 |
|
|
init: function(id, sGroup, config) {
|
| 2008 |
|
|
this.initTarget(id, sGroup, config);
|
| 2009 |
|
|
Event.on(this._domRef || this.id, "mousedown",
|
| 2010 |
|
|
this.handleMouseDown, this, true);
|
| 2011 |
|
|
// Event.on(this.id, "selectstart", Event.preventDefault);
|
| 2012 |
|
|
},
|
| 2013 |
|
|
|
| 2014 |
|
|
/**
|
| 2015 |
|
|
* Initializes Targeting functionality only... the object does not
|
| 2016 |
|
|
* get a mousedown handler.
|
| 2017 |
|
|
* @method initTarget
|
| 2018 |
|
|
* @param id the id of the linked element
|
| 2019 |
|
|
* @param {String} sGroup the group of related items
|
| 2020 |
|
|
* @param {object} config configuration attributes
|
| 2021 |
|
|
*/
|
| 2022 |
|
|
initTarget: function(id, sGroup, config) {
|
| 2023 |
|
|
|
| 2024 |
|
|
// configuration attributes
|
| 2025 |
|
|
this.config = config || {};
|
| 2026 |
|
|
|
| 2027 |
|
|
// create a local reference to the drag and drop manager
|
| 2028 |
|
|
this.DDM = YAHOO.util.DDM;
|
| 2029 |
|
|
|
| 2030 |
|
|
// initialize the groups object
|
| 2031 |
|
|
this.groups = {};
|
| 2032 |
|
|
|
| 2033 |
|
|
// assume that we have an element reference instead of an id if the
|
| 2034 |
|
|
// parameter is not a string
|
| 2035 |
|
|
if (typeof id !== "string") {
|
| 2036 |
|
|
YAHOO.log("id is not a string, assuming it is an HTMLElement");
|
| 2037 |
|
|
this._domRef = id;
|
| 2038 |
|
|
id = Dom.generateId(id);
|
| 2039 |
|
|
}
|
| 2040 |
|
|
|
| 2041 |
|
|
// set the id
|
| 2042 |
|
|
this.id = id;
|
| 2043 |
|
|
|
| 2044 |
|
|
// add to an interaction group
|
| 2045 |
|
|
this.addToGroup((sGroup) ? sGroup : "default");
|
| 2046 |
|
|
|
| 2047 |
|
|
// We don't want to register this as the handle with the manager
|
| 2048 |
|
|
// so we just set the id rather than calling the setter.
|
| 2049 |
|
|
this.handleElId = id;
|
| 2050 |
|
|
|
| 2051 |
|
|
Event.onAvailable(id, this.handleOnAvailable, this, true);
|
| 2052 |
|
|
|
| 2053 |
|
|
// create a logger instance
|
| 2054 |
|
|
this.logger = (YAHOO.widget.LogWriter) ?
|
| 2055 |
|
|
new YAHOO.widget.LogWriter(this.toString()) : YAHOO;
|
| 2056 |
|
|
|
| 2057 |
|
|
// the linked element is the element that gets dragged by default
|
| 2058 |
|
|
this.setDragElId(id);
|
| 2059 |
|
|
|
| 2060 |
|
|
// by default, clicked anchors will not start drag operations.
|
| 2061 |
|
|
// @TODO what else should be here? Probably form fields.
|
| 2062 |
|
|
this.invalidHandleTypes = { A: "A" };
|
| 2063 |
|
|
this.invalidHandleIds = {};
|
| 2064 |
|
|
this.invalidHandleClasses = [];
|
| 2065 |
|
|
|
| 2066 |
|
|
this.applyConfig();
|
| 2067 |
|
|
},
|
| 2068 |
|
|
|
| 2069 |
|
|
/**
|
| 2070 |
|
|
* Applies the configuration parameters that were passed into the constructor.
|
| 2071 |
|
|
* This is supposed to happen at each level through the inheritance chain. So
|
| 2072 |
|
|
* a DDProxy implentation will execute apply config on DDProxy, DD, and
|
| 2073 |
|
|
* DragDrop in order to get all of the parameters that are available in
|
| 2074 |
|
|
* each object.
|
| 2075 |
|
|
* @method applyConfig
|
| 2076 |
|
|
*/
|
| 2077 |
|
|
applyConfig: function() {
|
| 2078 |
|
|
|
| 2079 |
|
|
// configurable properties:
|
| 2080 |
|
|
// padding, isTarget, maintainOffset, primaryButtonOnly
|
| 2081 |
|
|
this.padding = this.config.padding || [0, 0, 0, 0];
|
| 2082 |
|
|
this.isTarget = (this.config.isTarget !== false);
|
| 2083 |
|
|
this.maintainOffset = (this.config.maintainOffset);
|
| 2084 |
|
|
this.primaryButtonOnly = (this.config.primaryButtonOnly !== false);
|
| 2085 |
|
|
this.dragOnly = ((this.config.dragOnly === true) ? true : false);
|
| 2086 |
|
|
},
|
| 2087 |
|
|
|
| 2088 |
|
|
/**
|
| 2089 |
|
|
* Executed when the linked element is available
|
| 2090 |
|
|
* @method handleOnAvailable
|
| 2091 |
|
|
* @private
|
| 2092 |
|
|
*/
|
| 2093 |
|
|
handleOnAvailable: function() {
|
| 2094 |
|
|
//this.logger.log("handleOnAvailable");
|
| 2095 |
|
|
this.available = true;
|
| 2096 |
|
|
this.resetConstraints();
|
| 2097 |
|
|
this.onAvailable();
|
| 2098 |
|
|
},
|
| 2099 |
|
|
|
| 2100 |
|
|
/**
|
| 2101 |
|
|
* Configures the padding for the target zone in px. Effectively expands
|
| 2102 |
|
|
* (or reduces) the virtual object size for targeting calculations.
|
| 2103 |
|
|
* Supports css-style shorthand; if only one parameter is passed, all sides
|
| 2104 |
|
|
* will have that padding, and if only two are passed, the top and bottom
|
| 2105 |
|
|
* will have the first param, the left and right the second.
|
| 2106 |
|
|
* @method setPadding
|
| 2107 |
|
|
* @param {int} iTop Top pad
|
| 2108 |
|
|
* @param {int} iRight Right pad
|
| 2109 |
|
|
* @param {int} iBot Bot pad
|
| 2110 |
|
|
* @param {int} iLeft Left pad
|
| 2111 |
|
|
*/
|
| 2112 |
|
|
setPadding: function(iTop, iRight, iBot, iLeft) {
|
| 2113 |
|
|
// this.padding = [iLeft, iRight, iTop, iBot];
|
| 2114 |
|
|
if (!iRight && 0 !== iRight) {
|
| 2115 |
|
|
this.padding = [iTop, iTop, iTop, iTop];
|
| 2116 |
|
|
} else if (!iBot && 0 !== iBot) {
|
| 2117 |
|
|
this.padding = [iTop, iRight, iTop, iRight];
|
| 2118 |
|
|
} else {
|
| 2119 |
|
|
this.padding = [iTop, iRight, iBot, iLeft];
|
| 2120 |
|
|
}
|
| 2121 |
|
|
},
|
| 2122 |
|
|
|
| 2123 |
|
|
/**
|
| 2124 |
|
|
* Stores the initial placement of the linked element.
|
| 2125 |
|
|
* @method setInitialPosition
|
| 2126 |
|
|
* @param {int} diffX the X offset, default 0
|
| 2127 |
|
|
* @param {int} diffY the Y offset, default 0
|
| 2128 |
|
|
* @private
|
| 2129 |
|
|
*/
|
| 2130 |
|
|
setInitPosition: function(diffX, diffY) {
|
| 2131 |
|
|
var el = this.getEl();
|
| 2132 |
|
|
|
| 2133 |
|
|
if (!this.DDM.verifyEl(el)) {
|
| 2134 |
|
|
this.logger.log(this.id + " element is broken");
|
| 2135 |
|
|
return;
|
| 2136 |
|
|
}
|
| 2137 |
|
|
|
| 2138 |
|
|
var dx = diffX || 0;
|
| 2139 |
|
|
var dy = diffY || 0;
|
| 2140 |
|
|
|
| 2141 |
|
|
var p = Dom.getXY( el );
|
| 2142 |
|
|
|
| 2143 |
|
|
this.initPageX = p[0] - dx;
|
| 2144 |
|
|
this.initPageY = p[1] - dy;
|
| 2145 |
|
|
|
| 2146 |
|
|
this.lastPageX = p[0];
|
| 2147 |
|
|
this.lastPageY = p[1];
|
| 2148 |
|
|
|
| 2149 |
|
|
this.logger.log(this.id + " initial position: " + this.initPageX +
|
| 2150 |
|
|
", " + this.initPageY);
|
| 2151 |
|
|
|
| 2152 |
|
|
|
| 2153 |
|
|
this.setStartPosition(p);
|
| 2154 |
|
|
},
|
| 2155 |
|
|
|
| 2156 |
|
|
/**
|
| 2157 |
|
|
* Sets the start position of the element. This is set when the obj
|
| 2158 |
|
|
* is initialized, the reset when a drag is started.
|
| 2159 |
|
|
* @method setStartPosition
|
| 2160 |
|
|
* @param pos current position (from previous lookup)
|
| 2161 |
|
|
* @private
|
| 2162 |
|
|
*/
|
| 2163 |
|
|
setStartPosition: function(pos) {
|
| 2164 |
|
|
var p = pos || Dom.getXY(this.getEl());
|
| 2165 |
|
|
|
| 2166 |
|
|
this.deltaSetXY = null;
|
| 2167 |
|
|
|
| 2168 |
|
|
this.startPageX = p[0];
|
| 2169 |
|
|
this.startPageY = p[1];
|
| 2170 |
|
|
},
|
| 2171 |
|
|
|
| 2172 |
|
|
/**
|
| 2173 |
|
|
* Add this instance to a group of related drag/drop objects. All
|
| 2174 |
|
|
* instances belong to at least one group, and can belong to as many
|
| 2175 |
|
|
* groups as needed.
|
| 2176 |
|
|
* @method addToGroup
|
| 2177 |
|
|
* @param sGroup {string} the name of the group
|
| 2178 |
|
|
*/
|
| 2179 |
|
|
addToGroup: function(sGroup) {
|
| 2180 |
|
|
this.groups[sGroup] = true;
|
| 2181 |
|
|
this.DDM.regDragDrop(this, sGroup);
|
| 2182 |
|
|
},
|
| 2183 |
|
|
|
| 2184 |
|
|
/**
|
| 2185 |
|
|
* Remove's this instance from the supplied interaction group
|
| 2186 |
|
|
* @method removeFromGroup
|
| 2187 |
|
|
* @param {string} sGroup The group to drop
|
| 2188 |
|
|
*/
|
| 2189 |
|
|
removeFromGroup: function(sGroup) {
|
| 2190 |
|
|
this.logger.log("Removing from group: " + sGroup);
|
| 2191 |
|
|
if (this.groups[sGroup]) {
|
| 2192 |
|
|
delete this.groups[sGroup];
|
| 2193 |
|
|
}
|
| 2194 |
|
|
|
| 2195 |
|
|
this.DDM.removeDDFromGroup(this, sGroup);
|
| 2196 |
|
|
},
|
| 2197 |
|
|
|
| 2198 |
|
|
/**
|
| 2199 |
|
|
* Allows you to specify that an element other than the linked element
|
| 2200 |
|
|
* will be moved with the cursor during a drag
|
| 2201 |
|
|
* @method setDragElId
|
| 2202 |
|
|
* @param id {string} the id of the element that will be used to initiate the drag
|
| 2203 |
|
|
*/
|
| 2204 |
|
|
setDragElId: function(id) {
|
| 2205 |
|
|
this.dragElId = id;
|
| 2206 |
|
|
},
|
| 2207 |
|
|
|
| 2208 |
|
|
/**
|
| 2209 |
|
|
* Allows you to specify a child of the linked element that should be
|
| 2210 |
|
|
* used to initiate the drag operation. An example of this would be if
|
| 2211 |
|
|
* you have a content div with text and links. Clicking anywhere in the
|
| 2212 |
|
|
* content area would normally start the drag operation. Use this method
|
| 2213 |
|
|
* to specify that an element inside of the content div is the element
|
| 2214 |
|
|
* that starts the drag operation.
|
| 2215 |
|
|
* @method setHandleElId
|
| 2216 |
|
|
* @param id {string} the id of the element that will be used to
|
| 2217 |
|
|
* initiate the drag.
|
| 2218 |
|
|
*/
|
| 2219 |
|
|
setHandleElId: function(id) {
|
| 2220 |
|
|
if (typeof id !== "string") {
|
| 2221 |
|
|
YAHOO.log("id is not a string, assuming it is an HTMLElement");
|
| 2222 |
|
|
id = Dom.generateId(id);
|
| 2223 |
|
|
}
|
| 2224 |
|
|
this.handleElId = id;
|
| 2225 |
|
|
this.DDM.regHandle(this.id, id);
|
| 2226 |
|
|
},
|
| 2227 |
|
|
|
| 2228 |
|
|
/**
|
| 2229 |
|
|
* Allows you to set an element outside of the linked element as a drag
|
| 2230 |
|
|
* handle
|
| 2231 |
|
|
* @method setOuterHandleElId
|
| 2232 |
|
|
* @param id the id of the element that will be used to initiate the drag
|
| 2233 |
|
|
*/
|
| 2234 |
|
|
setOuterHandleElId: function(id) {
|
| 2235 |
|
|
if (typeof id !== "string") {
|
| 2236 |
|
|
YAHOO.log("id is not a string, assuming it is an HTMLElement");
|
| 2237 |
|
|
id = Dom.generateId(id);
|
| 2238 |
|
|
}
|
| 2239 |
|
|
this.logger.log("Adding outer handle event: " + id);
|
| 2240 |
|
|
Event.on(id, "mousedown",
|
| 2241 |
|
|
this.handleMouseDown, this, true);
|
| 2242 |
|
|
this.setHandleElId(id);
|
| 2243 |
|
|
|
| 2244 |
|
|
this.hasOuterHandles = true;
|
| 2245 |
|
|
},
|
| 2246 |
|
|
|
| 2247 |
|
|
/**
|
| 2248 |
|
|
* Remove all drag and drop hooks for this element
|
| 2249 |
|
|
* @method unreg
|
| 2250 |
|
|
*/
|
| 2251 |
|
|
unreg: function() {
|
| 2252 |
|
|
this.logger.log("DragDrop obj cleanup " + this.id);
|
| 2253 |
|
|
Event.removeListener(this.id, "mousedown",
|
| 2254 |
|
|
this.handleMouseDown);
|
| 2255 |
|
|
this._domRef = null;
|
| 2256 |
|
|
this.DDM._remove(this);
|
| 2257 |
|
|
},
|
| 2258 |
|
|
|
| 2259 |
|
|
/**
|
| 2260 |
|
|
* Returns true if this instance is locked, or the drag drop mgr is locked
|
| 2261 |
|
|
* (meaning that all drag/drop is disabled on the page.)
|
| 2262 |
|
|
* @method isLocked
|
| 2263 |
|
|
* @return {boolean} true if this obj or all drag/drop is locked, else
|
| 2264 |
|
|
* false
|
| 2265 |
|
|
*/
|
| 2266 |
|
|
isLocked: function() {
|
| 2267 |
|
|
return (this.DDM.isLocked() || this.locked);
|
| 2268 |
|
|
},
|
| 2269 |
|
|
|
| 2270 |
|
|
/**
|
| 2271 |
|
|
* Fired when this object is clicked
|
| 2272 |
|
|
* @method handleMouseDown
|
| 2273 |
|
|
* @param {Event} e
|
| 2274 |
|
|
* @param {YAHOO.util.DragDrop} oDD the clicked dd object (this dd obj)
|
| 2275 |
|
|
* @private
|
| 2276 |
|
|
*/
|
| 2277 |
|
|
handleMouseDown: function(e, oDD) {
|
| 2278 |
|
|
|
| 2279 |
|
|
var button = e.which || e.button;
|
| 2280 |
|
|
this.logger.log("button: " + button);
|
| 2281 |
|
|
|
| 2282 |
|
|
if (this.primaryButtonOnly && button > 1) {
|
| 2283 |
|
|
this.logger.log("Mousedown was not produced by the primary button");
|
| 2284 |
|
|
return;
|
| 2285 |
|
|
}
|
| 2286 |
|
|
|
| 2287 |
|
|
if (this.isLocked()) {
|
| 2288 |
|
|
this.logger.log("Drag and drop is disabled, aborting");
|
| 2289 |
|
|
return;
|
| 2290 |
|
|
}
|
| 2291 |
|
|
|
| 2292 |
|
|
this.logger.log("mousedown " + this.id);
|
| 2293 |
|
|
|
| 2294 |
|
|
this.logger.log("firing onMouseDown events");
|
| 2295 |
|
|
|
| 2296 |
|
|
// firing the mousedown events prior to calculating positions
|
| 2297 |
|
|
var b4Return = this.b4MouseDown(e);
|
| 2298 |
|
|
var mDownReturn = this.onMouseDown(e);
|
| 2299 |
|
|
|
| 2300 |
|
|
if ((b4Return === false) || (mDownReturn === false)) {
|
| 2301 |
|
|
this.logger.log('b4MouseDown or onMouseDown returned false, exiting drag');
|
| 2302 |
|
|
return;
|
| 2303 |
|
|
}
|
| 2304 |
|
|
|
| 2305 |
|
|
this.DDM.refreshCache(this.groups);
|
| 2306 |
|
|
// var self = this;
|
| 2307 |
|
|
// setTimeout( function() { self.DDM.refreshCache(self.groups); }, 0);
|
| 2308 |
|
|
|
| 2309 |
|
|
// Only process the event if we really clicked within the linked
|
| 2310 |
|
|
// element. The reason we make this check is that in the case that
|
| 2311 |
|
|
// another element was moved between the clicked element and the
|
| 2312 |
|
|
// cursor in the time between the mousedown and mouseup events. When
|
| 2313 |
|
|
// this happens, the element gets the next mousedown event
|
| 2314 |
|
|
// regardless of where on the screen it happened.
|
| 2315 |
|
|
var pt = new YAHOO.util.Point(Event.getPageX(e), Event.getPageY(e));
|
| 2316 |
|
|
if (!this.hasOuterHandles && !this.DDM.isOverTarget(pt, this) ) {
|
| 2317 |
|
|
this.logger.log("Click was not over the element: " + this.id);
|
| 2318 |
|
|
} else {
|
| 2319 |
|
|
if (this.clickValidator(e)) {
|
| 2320 |
|
|
|
| 2321 |
|
|
this.logger.log("click was a valid handle");
|
| 2322 |
|
|
|
| 2323 |
|
|
// set the initial element position
|
| 2324 |
|
|
this.setStartPosition();
|
| 2325 |
|
|
|
| 2326 |
|
|
// start tracking mousemove distance and mousedown time to
|
| 2327 |
|
|
// determine when to start the actual drag
|
| 2328 |
|
|
this.DDM.handleMouseDown(e, this);
|
| 2329 |
|
|
|
| 2330 |
|
|
// this mousedown is mine
|
| 2331 |
|
|
this.DDM.stopEvent(e);
|
| 2332 |
|
|
} else {
|
| 2333 |
|
|
|
| 2334 |
|
|
this.logger.log("clickValidator returned false, drag not initiated");
|
| 2335 |
|
|
|
| 2336 |
|
|
}
|
| 2337 |
|
|
}
|
| 2338 |
|
|
},
|
| 2339 |
|
|
|
| 2340 |
|
|
/**
|
| 2341 |
|
|
* @method clickValidator
|
| 2342 |
|
|
* @description Method validates that the clicked element
|
| 2343 |
|
|
* was indeed the handle or a valid child of the handle
|
| 2344 |
|
|
* @param {Event} e
|
| 2345 |
|
|
* @private
|
| 2346 |
|
|
*/
|
| 2347 |
|
|
clickValidator: function(e) {
|
| 2348 |
|
|
var target = Event.getTarget(e);
|
| 2349 |
|
|
return ( this.isValidHandleChild(target) &&
|
| 2350 |
|
|
(this.id == this.handleElId ||
|
| 2351 |
|
|
this.DDM.handleWasClicked(target, this.id)) );
|
| 2352 |
|
|
},
|
| 2353 |
|
|
|
| 2354 |
|
|
/**
|
| 2355 |
|
|
* Finds the location the element should be placed if we want to move
|
| 2356 |
|
|
* it to where the mouse location less the click offset would place us.
|
| 2357 |
|
|
* @method getTargetCoord
|
| 2358 |
|
|
* @param {int} iPageX the X coordinate of the click
|
| 2359 |
|
|
* @param {int} iPageY the Y coordinate of the click
|
| 2360 |
|
|
* @return an object that contains the coordinates (Object.x and Object.y)
|
| 2361 |
|
|
* @private
|
| 2362 |
|
|
*/
|
| 2363 |
|
|
getTargetCoord: function(iPageX, iPageY) {
|
| 2364 |
|
|
|
| 2365 |
|
|
// this.logger.log("getTargetCoord: " + iPageX + ", " + iPageY);
|
| 2366 |
|
|
|
| 2367 |
|
|
var x = iPageX - this.deltaX;
|
| 2368 |
|
|
var y = iPageY - this.deltaY;
|
| 2369 |
|
|
|
| 2370 |
|
|
if (this.constrainX) {
|
| 2371 |
|
|
if (x < this.minX) { x = this.minX; }
|
| 2372 |
|
|
if (x > this.maxX) { x = this.maxX; }
|
| 2373 |
|
|
}
|
| 2374 |
|
|
|
| 2375 |
|
|
if (this.constrainY) {
|
| 2376 |
|
|
if (y < this.minY) { y = this.minY; }
|
| 2377 |
|
|
if (y > this.maxY) { y = this.maxY; }
|
| 2378 |
|
|
}
|
| 2379 |
|
|
|
| 2380 |
|
|
x = this.getTick(x, this.xTicks);
|
| 2381 |
|
|
y = this.getTick(y, this.yTicks);
|
| 2382 |
|
|
|
| 2383 |
|
|
// this.logger.log("getTargetCoord " +
|
| 2384 |
|
|
// " iPageX: " + iPageX +
|
| 2385 |
|
|
// " iPageY: " + iPageY +
|
| 2386 |
|
|
// " x: " + x + ", y: " + y);
|
| 2387 |
|
|
|
| 2388 |
|
|
return {x:x, y:y};
|
| 2389 |
|
|
},
|
| 2390 |
|
|
|
| 2391 |
|
|
/**
|
| 2392 |
|
|
* Allows you to specify a tag name that should not start a drag operation
|
| 2393 |
|
|
* when clicked. This is designed to facilitate embedding links within a
|
| 2394 |
|
|
* drag handle that do something other than start the drag.
|
| 2395 |
|
|
* @method addInvalidHandleType
|
| 2396 |
|
|
* @param {string} tagName the type of element to exclude
|
| 2397 |
|
|
*/
|
| 2398 |
|
|
addInvalidHandleType: function(tagName) {
|
| 2399 |
|
|
var type = tagName.toUpperCase();
|
| 2400 |
|
|
this.invalidHandleTypes[type] = type;
|
| 2401 |
|
|
},
|
| 2402 |
|
|
|
| 2403 |
|
|
/**
|
| 2404 |
|
|
* Lets you to specify an element id for a child of a drag handle
|
| 2405 |
|
|
* that should not initiate a drag
|
| 2406 |
|
|
* @method addInvalidHandleId
|
| 2407 |
|
|
* @param {string} id the element id of the element you wish to ignore
|
| 2408 |
|
|
*/
|
| 2409 |
|
|
addInvalidHandleId: function(id) {
|
| 2410 |
|
|
if (typeof id !== "string") {
|
| 2411 |
|
|
YAHOO.log("id is not a string, assuming it is an HTMLElement");
|
| 2412 |
|
|
id = Dom.generateId(id);
|
| 2413 |
|
|
}
|
| 2414 |
|
|
this.invalidHandleIds[id] = id;
|
| 2415 |
|
|
},
|
| 2416 |
|
|
|
| 2417 |
|
|
|
| 2418 |
|
|
/**
|
| 2419 |
|
|
* Lets you specify a css class of elements that will not initiate a drag
|
| 2420 |
|
|
* @method addInvalidHandleClass
|
| 2421 |
|
|
* @param {string} cssClass the class of the elements you wish to ignore
|
| 2422 |
|
|
*/
|
| 2423 |
|
|
addInvalidHandleClass: function(cssClass) {
|
| 2424 |
|
|
this.invalidHandleClasses.push(cssClass);
|
| 2425 |
|
|
},
|
| 2426 |
|
|
|
| 2427 |
|
|
/**
|
| 2428 |
|
|
* Unsets an excluded tag name set by addInvalidHandleType
|
| 2429 |
|
|
* @method removeInvalidHandleType
|
| 2430 |
|
|
* @param {string} tagName the type of element to unexclude
|
| 2431 |
|
|
*/
|
| 2432 |
|
|
removeInvalidHandleType: function(tagName) {
|
| 2433 |
|
|
var type = tagName.toUpperCase();
|
| 2434 |
|
|
// this.invalidHandleTypes[type] = null;
|
| 2435 |
|
|
delete this.invalidHandleTypes[type];
|
| 2436 |
|
|
},
|
| 2437 |
|
|
|
| 2438 |
|
|
/**
|
| 2439 |
|
|
* Unsets an invalid handle id
|
| 2440 |
|
|
* @method removeInvalidHandleId
|
| 2441 |
|
|
* @param {string} id the id of the element to re-enable
|
| 2442 |
|
|
*/
|
| 2443 |
|
|
removeInvalidHandleId: function(id) {
|
| 2444 |
|
|
if (typeof id !== "string") {
|
| 2445 |
|
|
YAHOO.log("id is not a string, assuming it is an HTMLElement");
|
| 2446 |
|
|
id = Dom.generateId(id);
|
| 2447 |
|
|
}
|
| 2448 |
|
|
delete this.invalidHandleIds[id];
|
| 2449 |
|
|
},
|
| 2450 |
|
|
|
| 2451 |
|
|
/**
|
| 2452 |
|
|
* Unsets an invalid css class
|
| 2453 |
|
|
* @method removeInvalidHandleClass
|
| 2454 |
|
|
* @param {string} cssClass the class of the element(s) you wish to
|
| 2455 |
|
|
* re-enable
|
| 2456 |
|
|
*/
|
| 2457 |
|
|
removeInvalidHandleClass: function(cssClass) {
|
| 2458 |
|
|
for (var i=0, len=this.invalidHandleClasses.length; i<len; ++i) {
|
| 2459 |
|
|
if (this.invalidHandleClasses[i] == cssClass) {
|
| 2460 |
|
|
delete this.invalidHandleClasses[i];
|
| 2461 |
|
|
}
|
| 2462 |
|
|
}
|
| 2463 |
|
|
},
|
| 2464 |
|
|
|
| 2465 |
|
|
/**
|
| 2466 |
|
|
* Checks the tag exclusion list to see if this click should be ignored
|
| 2467 |
|
|
* @method isValidHandleChild
|
| 2468 |
|
|
* @param {HTMLElement} node the HTMLElement to evaluate
|
| 2469 |
|
|
* @return {boolean} true if this is a valid tag type, false if not
|
| 2470 |
|
|
*/
|
| 2471 |
|
|
isValidHandleChild: function(node) {
|
| 2472 |
|
|
|
| 2473 |
|
|
var valid = true;
|
| 2474 |
|
|
// var n = (node.nodeName == "#text") ? node.parentNode : node;
|
| 2475 |
|
|
var nodeName;
|
| 2476 |
|
|
try {
|
| 2477 |
|
|
nodeName = node.nodeName.toUpperCase();
|
| 2478 |
|
|
} catch(e) {
|
| 2479 |
|
|
nodeName = node.nodeName;
|
| 2480 |
|
|
}
|
| 2481 |
|
|
valid = valid && !this.invalidHandleTypes[nodeName];
|
| 2482 |
|
|
valid = valid && !this.invalidHandleIds[node.id];
|
| 2483 |
|
|
|
| 2484 |
|
|
for (var i=0, len=this.invalidHandleClasses.length; valid && i<len; ++i) {
|
| 2485 |
|
|
valid = !Dom.hasClass(node, this.invalidHandleClasses[i]);
|
| 2486 |
|
|
}
|
| 2487 |
|
|
|
| 2488 |
|
|
this.logger.log("Valid handle? ... " + valid);
|
| 2489 |
|
|
|
| 2490 |
|
|
return valid;
|
| 2491 |
|
|
|
| 2492 |
|
|
},
|
| 2493 |
|
|
|
| 2494 |
|
|
/**
|
| 2495 |
|
|
* Create the array of horizontal tick marks if an interval was specified
|
| 2496 |
|
|
* in setXConstraint().
|
| 2497 |
|
|
* @method setXTicks
|
| 2498 |
|
|
* @private
|
| 2499 |
|
|
*/
|
| 2500 |
|
|
setXTicks: function(iStartX, iTickSize) {
|
| 2501 |
|
|
this.xTicks = [];
|
| 2502 |
|
|
this.xTickSize = iTickSize;
|
| 2503 |
|
|
|
| 2504 |
|
|
var tickMap = {};
|
| 2505 |
|
|
|
| 2506 |
|
|
for (var i = this.initPageX; i >= this.minX; i = i - iTickSize) {
|
| 2507 |
|
|
if (!tickMap[i]) {
|
| 2508 |
|
|
this.xTicks[this.xTicks.length] = i;
|
| 2509 |
|
|
tickMap[i] = true;
|
| 2510 |
|
|
}
|
| 2511 |
|
|
}
|
| 2512 |
|
|
|
| 2513 |
|
|
for (i = this.initPageX; i <= this.maxX; i = i + iTickSize) {
|
| 2514 |
|
|
if (!tickMap[i]) {
|
| 2515 |
|
|
this.xTicks[this.xTicks.length] = i;
|
| 2516 |
|
|
tickMap[i] = true;
|
| 2517 |
|
|
}
|
| 2518 |
|
|
}
|
| 2519 |
|
|
|
| 2520 |
|
|
this.xTicks.sort(this.DDM.numericSort) ;
|
| 2521 |
|
|
this.logger.log("xTicks: " + this.xTicks.join());
|
| 2522 |
|
|
},
|
| 2523 |
|
|
|
| 2524 |
|
|
/**
|
| 2525 |
|
|
* Create the array of vertical tick marks if an interval was specified in
|
| 2526 |
|
|
* setYConstraint().
|
| 2527 |
|
|
* @method setYTicks
|
| 2528 |
|
|
* @private
|
| 2529 |
|
|
*/
|
| 2530 |
|
|
setYTicks: function(iStartY, iTickSize) {
|
| 2531 |
|
|
// this.logger.log("setYTicks: " + iStartY + ", " + iTickSize
|
| 2532 |
|
|
// + ", " + this.initPageY + ", " + this.minY + ", " + this.maxY );
|
| 2533 |
|
|
this.yTicks = [];
|
| 2534 |
|
|
this.yTickSize = iTickSize;
|
| 2535 |
|
|
|
| 2536 |
|
|
var tickMap = {};
|
| 2537 |
|
|
|
| 2538 |
|
|
for (var i = this.initPageY; i >= this.minY; i = i - iTickSize) {
|
| 2539 |
|
|
if (!tickMap[i]) {
|
| 2540 |
|
|
this.yTicks[this.yTicks.length] = i;
|
| 2541 |
|
|
tickMap[i] = true;
|
| 2542 |
|
|
}
|
| 2543 |
|
|
}
|
| 2544 |
|
|
|
| 2545 |
|
|
for (i = this.initPageY; i <= this.maxY; i = i + iTickSize) {
|
| 2546 |
|
|
if (!tickMap[i]) {
|
| 2547 |
|
|
this.yTicks[this.yTicks.length] = i;
|
| 2548 |
|
|
tickMap[i] = true;
|
| 2549 |
|
|
}
|
| 2550 |
|
|
}
|
| 2551 |
|
|
|
| 2552 |
|
|
this.yTicks.sort(this.DDM.numericSort) ;
|
| 2553 |
|
|
this.logger.log("yTicks: " + this.yTicks.join());
|
| 2554 |
|
|
},
|
| 2555 |
|
|
|
| 2556 |
|
|
/**
|
| 2557 |
|
|
* By default, the element can be dragged any place on the screen. Use
|
| 2558 |
|
|
* this method to limit the horizontal travel of the element. Pass in
|
| 2559 |
|
|
* 0,0 for the parameters if you want to lock the drag to the y axis.
|
| 2560 |
|
|
* @method setXConstraint
|
| 2561 |
|
|
* @param {int} iLeft the number of pixels the element can move to the left
|
| 2562 |
|
|
* @param {int} iRight the number of pixels the element can move to the
|
| 2563 |
|
|
* right
|
| 2564 |
|
|
* @param {int} iTickSize optional parameter for specifying that the
|
| 2565 |
|
|
* element
|
| 2566 |
|
|
* should move iTickSize pixels at a time.
|
| 2567 |
|
|
*/
|
| 2568 |
|
|
setXConstraint: function(iLeft, iRight, iTickSize) {
|
| 2569 |
|
|
this.leftConstraint = parseInt(iLeft, 10);
|
| 2570 |
|
|
this.rightConstraint = parseInt(iRight, 10);
|
| 2571 |
|
|
|
| 2572 |
|
|
this.minX = this.initPageX - this.leftConstraint;
|
| 2573 |
|
|
this.maxX = this.initPageX + this.rightConstraint;
|
| 2574 |
|
|
if (iTickSize) { this.setXTicks(this.initPageX, iTickSize); }
|
| 2575 |
|
|
|
| 2576 |
|
|
this.constrainX = true;
|
| 2577 |
|
|
this.logger.log("initPageX:" + this.initPageX + " minX:" + this.minX +
|
| 2578 |
|
|
" maxX:" + this.maxX);
|
| 2579 |
|
|
},
|
| 2580 |
|
|
|
| 2581 |
|
|
/**
|
| 2582 |
|
|
* Clears any constraints applied to this instance. Also clears ticks
|
| 2583 |
|
|
* since they can't exist independent of a constraint at this time.
|
| 2584 |
|
|
* @method clearConstraints
|
| 2585 |
|
|
*/
|
| 2586 |
|
|
clearConstraints: function() {
|
| 2587 |
|
|
this.logger.log("Clearing constraints");
|
| 2588 |
|
|
this.constrainX = false;
|
| 2589 |
|
|
this.constrainY = false;
|
| 2590 |
|
|
this.clearTicks();
|
| 2591 |
|
|
},
|
| 2592 |
|
|
|
| 2593 |
|
|
/**
|
| 2594 |
|
|
* Clears any tick interval defined for this instance
|
| 2595 |
|
|
* @method clearTicks
|
| 2596 |
|
|
*/
|
| 2597 |
|
|
clearTicks: function() {
|
| 2598 |
|
|
this.logger.log("Clearing ticks");
|
| 2599 |
|
|
this.xTicks = null;
|
| 2600 |
|
|
this.yTicks = null;
|
| 2601 |
|
|
this.xTickSize = 0;
|
| 2602 |
|
|
this.yTickSize = 0;
|
| 2603 |
|
|
},
|
| 2604 |
|
|
|
| 2605 |
|
|
/**
|
| 2606 |
|
|
* By default, the element can be dragged any place on the screen. Set
|
| 2607 |
|
|
* this to limit the vertical travel of the element. Pass in 0,0 for the
|
| 2608 |
|
|
* parameters if you want to lock the drag to the x axis.
|
| 2609 |
|
|
* @method setYConstraint
|
| 2610 |
|
|
* @param {int} iUp the number of pixels the element can move up
|
| 2611 |
|
|
* @param {int} iDown the number of pixels the element can move down
|
| 2612 |
|
|
* @param {int} iTickSize optional parameter for specifying that the
|
| 2613 |
|
|
* element should move iTickSize pixels at a time.
|
| 2614 |
|
|
*/
|
| 2615 |
|
|
setYConstraint: function(iUp, iDown, iTickSize) {
|
| 2616 |
|
|
this.logger.log("setYConstraint: " + iUp + "," + iDown + "," + iTickSize);
|
| 2617 |
|
|
this.topConstraint = parseInt(iUp, 10);
|
| 2618 |
|
|
this.bottomConstraint = parseInt(iDown, 10);
|
| 2619 |
|
|
|
| 2620 |
|
|
this.minY = this.initPageY - this.topConstraint;
|
| 2621 |
|
|
this.maxY = this.initPageY + this.bottomConstraint;
|
| 2622 |
|
|
if (iTickSize) { this.setYTicks(this.initPageY, iTickSize); }
|
| 2623 |
|
|
|
| 2624 |
|
|
this.constrainY = true;
|
| 2625 |
|
|
|
| 2626 |
|
|
this.logger.log("initPageY:" + this.initPageY + " minY:" + this.minY +
|
| 2627 |
|
|
" maxY:" + this.maxY);
|
| 2628 |
|
|
},
|
| 2629 |
|
|
|
| 2630 |
|
|
/**
|
| 2631 |
|
|
* resetConstraints must be called if you manually reposition a dd element.
|
| 2632 |
|
|
* @method resetConstraints
|
| 2633 |
|
|
*/
|
| 2634 |
|
|
resetConstraints: function() {
|
| 2635 |
|
|
|
| 2636 |
|
|
//this.logger.log("resetConstraints");
|
| 2637 |
|
|
|
| 2638 |
|
|
// Maintain offsets if necessary
|
| 2639 |
|
|
if (this.initPageX || this.initPageX === 0) {
|
| 2640 |
|
|
//this.logger.log("init pagexy: " + this.initPageX + ", " +
|
| 2641 |
|
|
//this.initPageY);
|
| 2642 |
|
|
//this.logger.log("last pagexy: " + this.lastPageX + ", " +
|
| 2643 |
|
|
//this.lastPageY);
|
| 2644 |
|
|
// figure out how much this thing has moved
|
| 2645 |
|
|
var dx = (this.maintainOffset) ? this.lastPageX - this.initPageX : 0;
|
| 2646 |
|
|
var dy = (this.maintainOffset) ? this.lastPageY - this.initPageY : 0;
|
| 2647 |
|
|
|
| 2648 |
|
|
this.setInitPosition(dx, dy);
|
| 2649 |
|
|
|
| 2650 |
|
|
// This is the first time we have detected the element's position
|
| 2651 |
|
|
} else {
|
| 2652 |
|
|
this.setInitPosition();
|
| 2653 |
|
|
}
|
| 2654 |
|
|
|
| 2655 |
|
|
if (this.constrainX) {
|
| 2656 |
|
|
this.setXConstraint( this.leftConstraint,
|
| 2657 |
|
|
this.rightConstraint,
|
| 2658 |
|
|
this.xTickSize );
|
| 2659 |
|
|
}
|
| 2660 |
|
|
|
| 2661 |
|
|
if (this.constrainY) {
|
| 2662 |
|
|
this.setYConstraint( this.topConstraint,
|
| 2663 |
|
|
this.bottomConstraint,
|
| 2664 |
|
|
this.yTickSize );
|
| 2665 |
|
|
}
|
| 2666 |
|
|
},
|
| 2667 |
|
|
|
| 2668 |
|
|
/**
|
| 2669 |
|
|
* Normally the drag element is moved pixel by pixel, but we can specify
|
| 2670 |
|
|
* that it move a number of pixels at a time. This method resolves the
|
| 2671 |
|
|
* location when we have it set up like this.
|
| 2672 |
|
|
* @method getTick
|
| 2673 |
|
|
* @param {int} val where we want to place the object
|
| 2674 |
|
|
* @param {int[]} tickArray sorted array of valid points
|
| 2675 |
|
|
* @return {int} the closest tick
|
| 2676 |
|
|
* @private
|
| 2677 |
|
|
*/
|
| 2678 |
|
|
getTick: function(val, tickArray) {
|
| 2679 |
|
|
|
| 2680 |
|
|
if (!tickArray) {
|
| 2681 |
|
|
// If tick interval is not defined, it is effectively 1 pixel,
|
| 2682 |
|
|
// so we return the value passed to us.
|
| 2683 |
|
|
return val;
|
| 2684 |
|
|
} else if (tickArray[0] >= val) {
|
| 2685 |
|
|
// The value is lower than the first tick, so we return the first
|
| 2686 |
|
|
// tick.
|
| 2687 |
|
|
return tickArray[0];
|
| 2688 |
|
|
} else {
|
| 2689 |
|
|
for (var i=0, len=tickArray.length; i<len; ++i) {
|
| 2690 |
|
|
var next = i + 1;
|
| 2691 |
|
|
if (tickArray[next] && tickArray[next] >= val) {
|
| 2692 |
|
|
var diff1 = val - tickArray[i];
|
| 2693 |
|
|
var diff2 = tickArray[next] - val;
|
| 2694 |
|
|
return (diff2 > diff1) ? tickArray[i] : tickArray[next];
|
| 2695 |
|
|
}
|
| 2696 |
|
|
}
|
| 2697 |
|
|
|
| 2698 |
|
|
// The value is larger than the last tick, so we return the last
|
| 2699 |
|
|
// tick.
|
| 2700 |
|
|
return tickArray[tickArray.length - 1];
|
| 2701 |
|
|
}
|
| 2702 |
|
|
},
|
| 2703 |
|
|
|
| 2704 |
|
|
/**
|
| 2705 |
|
|
* toString method
|
| 2706 |
|
|
* @method toString
|
| 2707 |
|
|
* @return {string} string representation of the dd obj
|
| 2708 |
|
|
*/
|
| 2709 |
|
|
toString: function() {
|
| 2710 |
|
|
return ("DragDrop " + this.id);
|
| 2711 |
|
|
}
|
| 2712 |
|
|
|
| 2713 |
|
|
};
|
| 2714 |
|
|
|
| 2715 |
|
|
})();
|
| 2716 |
|
|
/**
|
| 2717 |
|
|
* A DragDrop implementation where the linked element follows the
|
| 2718 |
|
|
* mouse cursor during a drag.
|
| 2719 |
|
|
* @class DD
|
| 2720 |
|
|
* @extends YAHOO.util.DragDrop
|
| 2721 |
|
|
* @constructor
|
| 2722 |
|
|
* @param {String} id the id of the linked element
|
| 2723 |
|
|
* @param {String} sGroup the group of related DragDrop items
|
| 2724 |
|
|
* @param {object} config an object containing configurable attributes
|
| 2725 |
|
|
* Valid properties for DD:
|
| 2726 |
|
|
* scroll
|
| 2727 |
|
|
*/
|
| 2728 |
|
|
YAHOO.util.DD = function(id, sGroup, config) {
|
| 2729 |
|
|
if (id) {
|
| 2730 |
|
|
this.init(id, sGroup, config);
|
| 2731 |
|
|
}
|
| 2732 |
|
|
};
|
| 2733 |
|
|
|
| 2734 |
|
|
YAHOO.extend(YAHOO.util.DD, YAHOO.util.DragDrop, {
|
| 2735 |
|
|
|
| 2736 |
|
|
/**
|
| 2737 |
|
|
* When set to true, the utility automatically tries to scroll the browser
|
| 2738 |
|
|
* window wehn a drag and drop element is dragged near the viewport boundary.
|
| 2739 |
|
|
* Defaults to true.
|
| 2740 |
|
|
* @property scroll
|
| 2741 |
|
|
* @type boolean
|
| 2742 |
|
|
*/
|
| 2743 |
|
|
scroll: true,
|
| 2744 |
|
|
|
| 2745 |
|
|
/**
|
| 2746 |
|
|
* Sets the pointer offset to the distance between the linked element's top
|
| 2747 |
|
|
* left corner and the location the element was clicked
|
| 2748 |
|
|
* @method autoOffset
|
| 2749 |
|
|
* @param {int} iPageX the X coordinate of the click
|
| 2750 |
|
|
* @param {int} iPageY the Y coordinate of the click
|
| 2751 |
|
|
*/
|
| 2752 |
|
|
autoOffset: function(iPageX, iPageY) {
|
| 2753 |
|
|
var x = iPageX - this.startPageX;
|
| 2754 |
|
|
var y = iPageY - this.startPageY;
|
| 2755 |
|
|
this.setDelta(x, y);
|
| 2756 |
|
|
// this.logger.log("autoOffset el pos: " + aCoord + ", delta: " + x + "," + y);
|
| 2757 |
|
|
},
|
| 2758 |
|
|
|
| 2759 |
|
|
/**
|
| 2760 |
|
|
* Sets the pointer offset. You can call this directly to force the
|
| 2761 |
|
|
* offset to be in a particular location (e.g., pass in 0,0 to set it
|
| 2762 |
|
|
* to the center of the object, as done in YAHOO.widget.Slider)
|
| 2763 |
|
|
* @method setDelta
|
| 2764 |
|
|
* @param {int} iDeltaX the distance from the left
|
| 2765 |
|
|
* @param {int} iDeltaY the distance from the top
|
| 2766 |
|
|
*/
|
| 2767 |
|
|
setDelta: function(iDeltaX, iDeltaY) {
|
| 2768 |
|
|
this.deltaX = iDeltaX;
|
| 2769 |
|
|
this.deltaY = iDeltaY;
|
| 2770 |
|
|
this.logger.log("deltaX:" + this.deltaX + ", deltaY:" + this.deltaY);
|
| 2771 |
|
|
},
|
| 2772 |
|
|
|
| 2773 |
|
|
/**
|
| 2774 |
|
|
* Sets the drag element to the location of the mousedown or click event,
|
| 2775 |
|
|
* maintaining the cursor location relative to the location on the element
|
| 2776 |
|
|
* that was clicked. Override this if you want to place the element in a
|
| 2777 |
|
|
* location other than where the cursor is.
|
| 2778 |
|
|
* @method setDragElPos
|
| 2779 |
|
|
* @param {int} iPageX the X coordinate of the mousedown or drag event
|
| 2780 |
|
|
* @param {int} iPageY the Y coordinate of the mousedown or drag event
|
| 2781 |
|
|
*/
|
| 2782 |
|
|
setDragElPos: function(iPageX, iPageY) {
|
| 2783 |
|
|
// the first time we do this, we are going to check to make sure
|
| 2784 |
|
|
// the element has css positioning
|
| 2785 |
|
|
|
| 2786 |
|
|
var el = this.getDragEl();
|
| 2787 |
|
|
this.alignElWithMouse(el, iPageX, iPageY);
|
| 2788 |
|
|
},
|
| 2789 |
|
|
|
| 2790 |
|
|
/**
|
| 2791 |
|
|
* Sets the element to the location of the mousedown or click event,
|
| 2792 |
|
|
* maintaining the cursor location relative to the location on the element
|
| 2793 |
|
|
* that was clicked. Override this if you want to place the element in a
|
| 2794 |
|
|
* location other than where the cursor is.
|
| 2795 |
|
|
* @method alignElWithMouse
|
| 2796 |
|
|
* @param {HTMLElement} el the element to move
|
| 2797 |
|
|
* @param {int} iPageX the X coordinate of the mousedown or drag event
|
| 2798 |
|
|
* @param {int} iPageY the Y coordinate of the mousedown or drag event
|
| 2799 |
|
|
*/
|
| 2800 |
|
|
alignElWithMouse: function(el, iPageX, iPageY) {
|
| 2801 |
|
|
var oCoord = this.getTargetCoord(iPageX, iPageY);
|
| 2802 |
|
|
// this.logger.log("****alignElWithMouse : " + el.id + ", " + aCoord + ", " + el.style.display);
|
| 2803 |
|
|
|
| 2804 |
|
|
if (!this.deltaSetXY) {
|
| 2805 |
|
|
var aCoord = [oCoord.x, oCoord.y];
|
| 2806 |
|
|
YAHOO.util.Dom.setXY(el, aCoord);
|
| 2807 |
|
|
var newLeft = parseInt( YAHOO.util.Dom.getStyle(el, "left"), 10 );
|
| 2808 |
|
|
var newTop = parseInt( YAHOO.util.Dom.getStyle(el, "top" ), 10 );
|
| 2809 |
|
|
|
| 2810 |
|
|
this.deltaSetXY = [ newLeft - oCoord.x, newTop - oCoord.y ];
|
| 2811 |
|
|
} else {
|
| 2812 |
|
|
YAHOO.util.Dom.setStyle(el, "left", (oCoord.x + this.deltaSetXY[0]) + "px");
|
| 2813 |
|
|
YAHOO.util.Dom.setStyle(el, "top", (oCoord.y + this.deltaSetXY[1]) + "px");
|
| 2814 |
|
|
//el.style.left = (oCoord.x + this.deltaSetXY[0]) + "px";
|
| 2815 |
|
|
//el.style.top = (oCoord.y + this.deltaSetXY[1]) + "px";
|
| 2816 |
|
|
}
|
| 2817 |
|
|
|
| 2818 |
|
|
this.cachePosition(oCoord.x, oCoord.y);
|
| 2819 |
|
|
//DAV
|
| 2820 |
|
|
var self = this;
|
| 2821 |
|
|
setTimeout(function() {
|
| 2822 |
|
|
self.autoScroll.call(self, oCoord.x, oCoord.y, el.offsetHeight, el.offsetWidth);
|
| 2823 |
|
|
}, 0);
|
| 2824 |
|
|
},
|
| 2825 |
|
|
|
| 2826 |
|
|
/**
|
| 2827 |
|
|
* Saves the most recent position so that we can reset the constraints and
|
| 2828 |
|
|
* tick marks on-demand. We need to know this so that we can calculate the
|
| 2829 |
|
|
* number of pixels the element is offset from its original position.
|
| 2830 |
|
|
* @method cachePosition
|
| 2831 |
|
|
* @param iPageX the current x position (optional, this just makes it so we
|
| 2832 |
|
|
* don't have to look it up again)
|
| 2833 |
|
|
* @param iPageY the current y position (optional, this just makes it so we
|
| 2834 |
|
|
* don't have to look it up again)
|
| 2835 |
|
|
*/
|
| 2836 |
|
|
cachePosition: function(iPageX, iPageY) {
|
| 2837 |
|
|
if (iPageX) {
|
| 2838 |
|
|
this.lastPageX = iPageX;
|
| 2839 |
|
|
this.lastPageY = iPageY;
|
| 2840 |
|
|
} else {
|
| 2841 |
|
|
var aCoord = YAHOO.util.Dom.getXY(this.getEl());
|
| 2842 |
|
|
this.lastPageX = aCoord[0];
|
| 2843 |
|
|
this.lastPageY = aCoord[1];
|
| 2844 |
|
|
}
|
| 2845 |
|
|
},
|
| 2846 |
|
|
|
| 2847 |
|
|
/**
|
| 2848 |
|
|
* Auto-scroll the window if the dragged object has been moved beyond the
|
| 2849 |
|
|
* visible window boundary.
|
| 2850 |
|
|
* @method autoScroll
|
| 2851 |
|
|
* @param {int} x the drag element's x position
|
| 2852 |
|
|
* @param {int} y the drag element's y position
|
| 2853 |
|
|
* @param {int} h the height of the drag element
|
| 2854 |
|
|
* @param {int} w the width of the drag element
|
| 2855 |
|
|
* @private
|
| 2856 |
|
|
*/
|
| 2857 |
|
|
autoScroll: function(x, y, h, w) {
|
| 2858 |
|
|
|
| 2859 |
|
|
if (this.scroll) {
|
| 2860 |
|
|
// The client height
|
| 2861 |
|
|
var clientH = this.DDM.getClientHeight();
|
| 2862 |
|
|
|
| 2863 |
|
|
// The client width
|
| 2864 |
|
|
var clientW = this.DDM.getClientWidth();
|
| 2865 |
|
|
|
| 2866 |
|
|
// The amt scrolled down
|
| 2867 |
|
|
var st = this.DDM.getScrollTop();
|
| 2868 |
|
|
|
| 2869 |
|
|
// The amt scrolled right
|
| 2870 |
|
|
var sl = this.DDM.getScrollLeft();
|
| 2871 |
|
|
|
| 2872 |
|
|
// Location of the bottom of the element
|
| 2873 |
|
|
var bot = h + y;
|
| 2874 |
|
|
|
| 2875 |
|
|
// Location of the right of the element
|
| 2876 |
|
|
var right = w + x;
|
| 2877 |
|
|
|
| 2878 |
|
|
// The distance from the cursor to the bottom of the visible area,
|
| 2879 |
|
|
// adjusted so that we don't scroll if the cursor is beyond the
|
| 2880 |
|
|
// element drag constraints
|
| 2881 |
|
|
var toBot = (clientH + st - y - this.deltaY);
|
| 2882 |
|
|
|
| 2883 |
|
|
// The distance from the cursor to the right of the visible area
|
| 2884 |
|
|
var toRight = (clientW + sl - x - this.deltaX);
|
| 2885 |
|
|
|
| 2886 |
|
|
// this.logger.log( " x: " + x + " y: " + y + " h: " + h +
|
| 2887 |
|
|
// " clientH: " + clientH + " clientW: " + clientW +
|
| 2888 |
|
|
// " st: " + st + " sl: " + sl + " bot: " + bot +
|
| 2889 |
|
|
// " right: " + right + " toBot: " + toBot + " toRight: " + toRight);
|
| 2890 |
|
|
|
| 2891 |
|
|
// How close to the edge the cursor must be before we scroll
|
| 2892 |
|
|
// var thresh = (document.all) ? 100 : 40;
|
| 2893 |
|
|
var thresh = 40;
|
| 2894 |
|
|
|
| 2895 |
|
|
// How many pixels to scroll per autoscroll op. This helps to reduce
|
| 2896 |
|
|
// clunky scrolling. IE is more sensitive about this ... it needs this
|
| 2897 |
|
|
// value to be higher.
|
| 2898 |
|
|
var scrAmt = (document.all) ? 80 : 30;
|
| 2899 |
|
|
|
| 2900 |
|
|
// Scroll down if we are near the bottom of the visible page and the
|
| 2901 |
|
|
// obj extends below the crease
|
| 2902 |
|
|
if ( bot > clientH && toBot < thresh ) {
|
| 2903 |
|
|
window.scrollTo(sl, st + scrAmt);
|
| 2904 |
|
|
}
|
| 2905 |
|
|
|
| 2906 |
|
|
// Scroll up if the window is scrolled down and the top of the object
|
| 2907 |
|
|
// goes above the top border
|
| 2908 |
|
|
if ( y < st && st > 0 && y - st < thresh ) {
|
| 2909 |
|
|
window.scrollTo(sl, st - scrAmt);
|
| 2910 |
|
|
}
|
| 2911 |
|
|
|
| 2912 |
|
|
// Scroll right if the obj is beyond the right border and the cursor is
|
| 2913 |
|
|
// near the border.
|
| 2914 |
|
|
if ( right > clientW && toRight < thresh ) {
|
| 2915 |
|
|
window.scrollTo(sl + scrAmt, st);
|
| 2916 |
|
|
}
|
| 2917 |
|
|
|
| 2918 |
|
|
// Scroll left if the window has been scrolled to the right and the obj
|
| 2919 |
|
|
// extends past the left border
|
| 2920 |
|
|
if ( x < sl && sl > 0 && x - sl < thresh ) {
|
| 2921 |
|
|
window.scrollTo(sl - scrAmt, st);
|
| 2922 |
|
|
}
|
| 2923 |
|
|
}
|
| 2924 |
|
|
},
|
| 2925 |
|
|
|
| 2926 |
|
|
/*
|
| 2927 |
|
|
* Sets up config options specific to this class. Overrides
|
| 2928 |
|
|
* YAHOO.util.DragDrop, but all versions of this method through the
|
| 2929 |
|
|
* inheritance chain are called
|
| 2930 |
|
|
*/
|
| 2931 |
|
|
applyConfig: function() {
|
| 2932 |
|
|
YAHOO.util.DD.superclass.applyConfig.call(this);
|
| 2933 |
|
|
this.scroll = (this.config.scroll !== false);
|
| 2934 |
|
|
},
|
| 2935 |
|
|
|
| 2936 |
|
|
/*
|
| 2937 |
|
|
* Event that fires prior to the onMouseDown event. Overrides
|
| 2938 |
|
|
* YAHOO.util.DragDrop.
|
| 2939 |
|
|
*/
|
| 2940 |
|
|
b4MouseDown: function(e) {
|
| 2941 |
|
|
this.setStartPosition();
|
| 2942 |
|
|
// this.resetConstraints();
|
| 2943 |
|
|
this.autoOffset(YAHOO.util.Event.getPageX(e),
|
| 2944 |
|
|
YAHOO.util.Event.getPageY(e));
|
| 2945 |
|
|
},
|
| 2946 |
|
|
|
| 2947 |
|
|
/*
|
| 2948 |
|
|
* Event that fires prior to the onDrag event. Overrides
|
| 2949 |
|
|
* YAHOO.util.DragDrop.
|
| 2950 |
|
|
*/
|
| 2951 |
|
|
b4Drag: function(e) {
|
| 2952 |
|
|
this.setDragElPos(YAHOO.util.Event.getPageX(e),
|
| 2953 |
|
|
YAHOO.util.Event.getPageY(e));
|
| 2954 |
|
|
},
|
| 2955 |
|
|
|
| 2956 |
|
|
toString: function() {
|
| 2957 |
|
|
return ("DD " + this.id);
|
| 2958 |
|
|
}
|
| 2959 |
|
|
|
| 2960 |
|
|
//////////////////////////////////////////////////////////////////////////
|
| 2961 |
|
|
// Debugging ygDragDrop events that can be overridden
|
| 2962 |
|
|
//////////////////////////////////////////////////////////////////////////
|
| 2963 |
|
|
/*
|
| 2964 |
|
|
startDrag: function(x, y) {
|
| 2965 |
|
|
this.logger.log(this.id.toString() + " startDrag");
|
| 2966 |
|
|
},
|
| 2967 |
|
|
|
| 2968 |
|
|
onDrag: function(e) {
|
| 2969 |
|
|
this.logger.log(this.id.toString() + " onDrag");
|
| 2970 |
|
|
},
|
| 2971 |
|
|
|
| 2972 |
|
|
onDragEnter: function(e, id) {
|
| 2973 |
|
|
this.logger.log(this.id.toString() + " onDragEnter: " + id);
|
| 2974 |
|
|
},
|
| 2975 |
|
|
|
| 2976 |
|
|
onDragOver: function(e, id) {
|
| 2977 |
|
|
this.logger.log(this.id.toString() + " onDragOver: " + id);
|
| 2978 |
|
|
},
|
| 2979 |
|
|
|
| 2980 |
|
|
onDragOut: function(e, id) {
|
| 2981 |
|
|
this.logger.log(this.id.toString() + " onDragOut: " + id);
|
| 2982 |
|
|
},
|
| 2983 |
|
|
|
| 2984 |
|
|
onDragDrop: function(e, id) {
|
| 2985 |
|
|
this.logger.log(this.id.toString() + " onDragDrop: " + id);
|
| 2986 |
|
|
},
|
| 2987 |
|
|
|
| 2988 |
|
|
endDrag: function(e) {
|
| 2989 |
|
|
this.logger.log(this.id.toString() + " endDrag");
|
| 2990 |
|
|
}
|
| 2991 |
|
|
|
| 2992 |
|
|
*/
|
| 2993 |
|
|
|
| 2994 |
|
|
});
|
| 2995 |
|
|
/**
|
| 2996 |
|
|
* A DragDrop implementation that inserts an empty, bordered div into
|
| 2997 |
|
|
* the document that follows the cursor during drag operations. At the time of
|
| 2998 |
|
|
* the click, the frame div is resized to the dimensions of the linked html
|
| 2999 |
|
|
* element, and moved to the exact location of the linked element.
|
| 3000 |
|
|
*
|
| 3001 |
|
|
* References to the "frame" element refer to the single proxy element that
|
| 3002 |
|
|
* was created to be dragged in place of all DDProxy elements on the
|
| 3003 |
|
|
* page.
|
| 3004 |
|
|
*
|
| 3005 |
|
|
* @class DDProxy
|
| 3006 |
|
|
* @extends YAHOO.util.DD
|
| 3007 |
|
|
* @constructor
|
| 3008 |
|
|
* @param {String} id the id of the linked html element
|
| 3009 |
|
|
* @param {String} sGroup the group of related DragDrop objects
|
| 3010 |
|
|
* @param {object} config an object containing configurable attributes
|
| 3011 |
|
|
* Valid properties for DDProxy in addition to those in DragDrop:
|
| 3012 |
|
|
* resizeFrame, centerFrame, dragElId
|
| 3013 |
|
|
*/
|
| 3014 |
|
|
YAHOO.util.DDProxy = function(id, sGroup, config) {
|
| 3015 |
|
|
if (id) {
|
| 3016 |
|
|
this.init(id, sGroup, config);
|
| 3017 |
|
|
this.initFrame();
|
| 3018 |
|
|
}
|
| 3019 |
|
|
};
|
| 3020 |
|
|
|
| 3021 |
|
|
/**
|
| 3022 |
|
|
* The default drag frame div id
|
| 3023 |
|
|
* @property YAHOO.util.DDProxy.dragElId
|
| 3024 |
|
|
* @type String
|
| 3025 |
|
|
* @static
|
| 3026 |
|
|
*/
|
| 3027 |
|
|
YAHOO.util.DDProxy.dragElId = "ygddfdiv";
|
| 3028 |
|
|
|
| 3029 |
|
|
YAHOO.extend(YAHOO.util.DDProxy, YAHOO.util.DD, {
|
| 3030 |
|
|
|
| 3031 |
|
|
/**
|
| 3032 |
|
|
* By default we resize the drag frame to be the same size as the element
|
| 3033 |
|
|
* we want to drag (this is to get the frame effect). We can turn it off
|
| 3034 |
|
|
* if we want a different behavior.
|
| 3035 |
|
|
* @property resizeFrame
|
| 3036 |
|
|
* @type boolean
|
| 3037 |
|
|
*/
|
| 3038 |
|
|
resizeFrame: true,
|
| 3039 |
|
|
|
| 3040 |
|
|
/**
|
| 3041 |
|
|
* By default the frame is positioned exactly where the drag element is, so
|
| 3042 |
|
|
* we use the cursor offset provided by YAHOO.util.DD. Another option that works only if
|
| 3043 |
|
|
* you do not have constraints on the obj is to have the drag frame centered
|
| 3044 |
|
|
* around the cursor. Set centerFrame to true for this effect.
|
| 3045 |
|
|
* @property centerFrame
|
| 3046 |
|
|
* @type boolean
|
| 3047 |
|
|
*/
|
| 3048 |
|
|
centerFrame: false,
|
| 3049 |
|
|
|
| 3050 |
|
|
/**
|
| 3051 |
|
|
* Creates the proxy element if it does not yet exist
|
| 3052 |
|
|
* @method createFrame
|
| 3053 |
|
|
*/
|
| 3054 |
|
|
createFrame: function() {
|
| 3055 |
|
|
var self=this, body=document.body;
|
| 3056 |
|
|
|
| 3057 |
|
|
if (!body || !body.firstChild) {
|
| 3058 |
|
|
setTimeout( function() { self.createFrame(); }, 50 );
|
| 3059 |
|
|
return;
|
| 3060 |
|
|
}
|
| 3061 |
|
|
|
| 3062 |
|
|
var div=this.getDragEl(), Dom=YAHOO.util.Dom;
|
| 3063 |
|
|
|
| 3064 |
|
|
if (!div) {
|
| 3065 |
|
|
div = document.createElement("div");
|
| 3066 |
|
|
div.id = this.dragElId;
|
| 3067 |
|
|
var s = div.style;
|
| 3068 |
|
|
|
| 3069 |
|
|
s.position = "absolute";
|
| 3070 |
|
|
s.visibility = "hidden";
|
| 3071 |
|
|
s.cursor = "move";
|
| 3072 |
|
|
s.border = "2px solid #aaa";
|
| 3073 |
|
|
s.zIndex = 999;
|
| 3074 |
|
|
s.height = "25px";
|
| 3075 |
|
|
s.width = "25px";
|
| 3076 |
|
|
|
| 3077 |
|
|
var _data = document.createElement('div');
|
| 3078 |
|
|
Dom.setStyle(_data, 'height', '100%');
|
| 3079 |
|
|
Dom.setStyle(_data, 'width', '100%');
|
| 3080 |
|
|
/**
|
| 3081 |
|
|
* If the proxy element has no background-color, then it is considered to the "transparent" by Internet Explorer.
|
| 3082 |
|
|
* Since it is "transparent" then the events pass through it to the iframe below.
|
| 3083 |
|
|
* So creating a "fake" div inside the proxy element and giving it a background-color, then setting it to an
|
| 3084 |
|
|
* opacity of 0, it appears to not be there, however IE still thinks that it is so the events never pass through.
|
| 3085 |
|
|
*/
|
| 3086 |
|
|
Dom.setStyle(_data, 'background-color', '#ccc');
|
| 3087 |
|
|
Dom.setStyle(_data, 'opacity', '0');
|
| 3088 |
|
|
div.appendChild(_data);
|
| 3089 |
|
|
|
| 3090 |
|
|
// appendChild can blow up IE if invoked prior to the window load event
|
| 3091 |
|
|
// while rendering a table. It is possible there are other scenarios
|
| 3092 |
|
|
// that would cause this to happen as well.
|
| 3093 |
|
|
body.insertBefore(div, body.firstChild);
|
| 3094 |
|
|
}
|
| 3095 |
|
|
},
|
| 3096 |
|
|
|
| 3097 |
|
|
/**
|
| 3098 |
|
|
* Initialization for the drag frame element. Must be called in the
|
| 3099 |
|
|
* constructor of all subclasses
|
| 3100 |
|
|
* @method initFrame
|
| 3101 |
|
|
*/
|
| 3102 |
|
|
initFrame: function() {
|
| 3103 |
|
|
this.createFrame();
|
| 3104 |
|
|
},
|
| 3105 |
|
|
|
| 3106 |
|
|
applyConfig: function() {
|
| 3107 |
|
|
//this.logger.log("DDProxy applyConfig");
|
| 3108 |
|
|
YAHOO.util.DDProxy.superclass.applyConfig.call(this);
|
| 3109 |
|
|
|
| 3110 |
|
|
this.resizeFrame = (this.config.resizeFrame !== false);
|
| 3111 |
|
|
this.centerFrame = (this.config.centerFrame);
|
| 3112 |
|
|
this.setDragElId(this.config.dragElId || YAHOO.util.DDProxy.dragElId);
|
| 3113 |
|
|
},
|
| 3114 |
|
|
|
| 3115 |
|
|
/**
|
| 3116 |
|
|
* Resizes the drag frame to the dimensions of the clicked object, positions
|
| 3117 |
|
|
* it over the object, and finally displays it
|
| 3118 |
|
|
* @method showFrame
|
| 3119 |
|
|
* @param {int} iPageX X click position
|
| 3120 |
|
|
* @param {int} iPageY Y click position
|
| 3121 |
|
|
* @private
|
| 3122 |
|
|
*/
|
| 3123 |
|
|
showFrame: function(iPageX, iPageY) {
|
| 3124 |
|
|
var el = this.getEl();
|
| 3125 |
|
|
var dragEl = this.getDragEl();
|
| 3126 |
|
|
var s = dragEl.style;
|
| 3127 |
|
|
|
| 3128 |
|
|
this._resizeProxy();
|
| 3129 |
|
|
|
| 3130 |
|
|
if (this.centerFrame) {
|
| 3131 |
|
|
this.setDelta( Math.round(parseInt(s.width, 10)/2),
|
| 3132 |
|
|
Math.round(parseInt(s.height, 10)/2) );
|
| 3133 |
|
|
}
|
| 3134 |
|
|
|
| 3135 |
|
|
this.setDragElPos(iPageX, iPageY);
|
| 3136 |
|
|
|
| 3137 |
|
|
YAHOO.util.Dom.setStyle(dragEl, "visibility", "visible");
|
| 3138 |
|
|
},
|
| 3139 |
|
|
|
| 3140 |
|
|
/**
|
| 3141 |
|
|
* The proxy is automatically resized to the dimensions of the linked
|
| 3142 |
|
|
* element when a drag is initiated, unless resizeFrame is set to false
|
| 3143 |
|
|
* @method _resizeProxy
|
| 3144 |
|
|
* @private
|
| 3145 |
|
|
*/
|
| 3146 |
|
|
_resizeProxy: function() {
|
| 3147 |
|
|
if (this.resizeFrame) {
|
| 3148 |
|
|
var DOM = YAHOO.util.Dom;
|
| 3149 |
|
|
var el = this.getEl();
|
| 3150 |
|
|
var dragEl = this.getDragEl();
|
| 3151 |
|
|
|
| 3152 |
|
|
var bt = parseInt( DOM.getStyle(dragEl, "borderTopWidth" ), 10);
|
| 3153 |
|
|
var br = parseInt( DOM.getStyle(dragEl, "borderRightWidth" ), 10);
|
| 3154 |
|
|
var bb = parseInt( DOM.getStyle(dragEl, "borderBottomWidth" ), 10);
|
| 3155 |
|
|
var bl = parseInt( DOM.getStyle(dragEl, "borderLeftWidth" ), 10);
|
| 3156 |
|
|
|
| 3157 |
|
|
if (isNaN(bt)) { bt = 0; }
|
| 3158 |
|
|
if (isNaN(br)) { br = 0; }
|
| 3159 |
|
|
if (isNaN(bb)) { bb = 0; }
|
| 3160 |
|
|
if (isNaN(bl)) { bl = 0; }
|
| 3161 |
|
|
|
| 3162 |
|
|
this.logger.log("proxy size: " + bt + " " + br + " " + bb + " " + bl);
|
| 3163 |
|
|
|
| 3164 |
|
|
var newWidth = Math.max(0, el.offsetWidth - br - bl);
|
| 3165 |
|
|
var newHeight = Math.max(0, el.offsetHeight - bt - bb);
|
| 3166 |
|
|
|
| 3167 |
|
|
this.logger.log("Resizing proxy element");
|
| 3168 |
|
|
|
| 3169 |
|
|
DOM.setStyle( dragEl, "width", newWidth + "px" );
|
| 3170 |
|
|
DOM.setStyle( dragEl, "height", newHeight + "px" );
|
| 3171 |
|
|
}
|
| 3172 |
|
|
},
|
| 3173 |
|
|
|
| 3174 |
|
|
// overrides YAHOO.util.DragDrop
|
| 3175 |
|
|
b4MouseDown: function(e) {
|
| 3176 |
|
|
this.setStartPosition();
|
| 3177 |
|
|
var x = YAHOO.util.Event.getPageX(e);
|
| 3178 |
|
|
var y = YAHOO.util.Event.getPageY(e);
|
| 3179 |
|
|
this.autoOffset(x, y);
|
| 3180 |
|
|
|
| 3181 |
|
|
// This causes the autoscroll code to kick off, which means autoscroll can
|
| 3182 |
|
|
// happen prior to the check for a valid drag handle.
|
| 3183 |
|
|
// this.setDragElPos(x, y);
|
| 3184 |
|
|
},
|
| 3185 |
|
|
|
| 3186 |
|
|
// overrides YAHOO.util.DragDrop
|
| 3187 |
|
|
b4StartDrag: function(x, y) {
|
| 3188 |
|
|
// show the drag frame
|
| 3189 |
|
|
this.logger.log("start drag show frame, x: " + x + ", y: " + y);
|
| 3190 |
|
|
this.showFrame(x, y);
|
| 3191 |
|
|
},
|
| 3192 |
|
|
|
| 3193 |
|
|
// overrides YAHOO.util.DragDrop
|
| 3194 |
|
|
b4EndDrag: function(e) {
|
| 3195 |
|
|
this.logger.log(this.id + " b4EndDrag");
|
| 3196 |
|
|
YAHOO.util.Dom.setStyle(this.getDragEl(), "visibility", "hidden");
|
| 3197 |
|
|
},
|
| 3198 |
|
|
|
| 3199 |
|
|
// overrides YAHOO.util.DragDrop
|
| 3200 |
|
|
// By default we try to move the element to the last location of the frame.
|
| 3201 |
|
|
// This is so that the default behavior mirrors that of YAHOO.util.DD.
|
| 3202 |
|
|
endDrag: function(e) {
|
| 3203 |
|
|
var DOM = YAHOO.util.Dom;
|
| 3204 |
|
|
this.logger.log(this.id + " endDrag");
|
| 3205 |
|
|
var lel = this.getEl();
|
| 3206 |
|
|
var del = this.getDragEl();
|
| 3207 |
|
|
|
| 3208 |
|
|
// Show the drag frame briefly so we can get its position
|
| 3209 |
|
|
// del.style.visibility = "";
|
| 3210 |
|
|
DOM.setStyle(del, "visibility", "");
|
| 3211 |
|
|
|
| 3212 |
|
|
// Hide the linked element before the move to get around a Safari
|
| 3213 |
|
|
// rendering bug.
|
| 3214 |
|
|
//lel.style.visibility = "hidden";
|
| 3215 |
|
|
DOM.setStyle(lel, "visibility", "hidden");
|
| 3216 |
|
|
YAHOO.util.DDM.moveToEl(lel, del);
|
| 3217 |
|
|
//del.style.visibility = "hidden";
|
| 3218 |
|
|
DOM.setStyle(del, "visibility", "hidden");
|
| 3219 |
|
|
//lel.style.visibility = "";
|
| 3220 |
|
|
DOM.setStyle(lel, "visibility", "");
|
| 3221 |
|
|
},
|
| 3222 |
|
|
|
| 3223 |
|
|
toString: function() {
|
| 3224 |
|
|
return ("DDProxy " + this.id);
|
| 3225 |
|
|
}
|
| 3226 |
|
|
|
| 3227 |
|
|
});
|
| 3228 |
|
|
/**
|
| 3229 |
|
|
* A DragDrop implementation that does not move, but can be a drop
|
| 3230 |
|
|
* target. You would get the same result by simply omitting implementation
|
| 3231 |
|
|
* for the event callbacks, but this way we reduce the processing cost of the
|
| 3232 |
|
|
* event listener and the callbacks.
|
| 3233 |
|
|
* @class DDTarget
|
| 3234 |
|
|
* @extends YAHOO.util.DragDrop
|
| 3235 |
|
|
* @constructor
|
| 3236 |
|
|
* @param {String} id the id of the element that is a drop target
|
| 3237 |
|
|
* @param {String} sGroup the group of related DragDrop objects
|
| 3238 |
|
|
* @param {object} config an object containing configurable attributes
|
| 3239 |
|
|
* Valid properties for DDTarget in addition to those in
|
| 3240 |
|
|
* DragDrop:
|
| 3241 |
|
|
* none
|
| 3242 |
|
|
*/
|
| 3243 |
|
|
YAHOO.util.DDTarget = function(id, sGroup, config) {
|
| 3244 |
|
|
if (id) {
|
| 3245 |
|
|
this.initTarget(id, sGroup, config);
|
| 3246 |
|
|
}
|
| 3247 |
|
|
};
|
| 3248 |
|
|
|
| 3249 |
|
|
// YAHOO.util.DDTarget.prototype = new YAHOO.util.DragDrop();
|
| 3250 |
|
|
YAHOO.extend(YAHOO.util.DDTarget, YAHOO.util.DragDrop, {
|
| 3251 |
|
|
toString: function() {
|
| 3252 |
|
|
return ("DDTarget " + this.id);
|
| 3253 |
|
|
}
|
| 3254 |
|
|
});
|
| 3255 |
|
|
YAHOO.register("dragdrop", YAHOO.util.DragDropMgr, {version: "2.4.1", build: "742"});
|