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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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* @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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* @private
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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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}
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var obj = this.ids[sGroup];
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if (obj && obj[oDD.id]) {
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delete obj[oDD.id];
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}
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},
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/**
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* Unregisters a drag and drop item. This is executed in
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* DragDrop.unreg, use that method instead of calling this directly.
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* @method _remove
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* @private
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* @static
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*/
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_remove: function(oDD) {
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for (var g in oDD.groups) {
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if (g && this.ids[g][oDD.id]) {
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delete this.ids[g][oDD.id];
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//YAHOO.log("NEW LEN " + this.ids.length, "warn");
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}
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}
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delete this.handleIds[oDD.id];
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},
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/**
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* Each DragDrop handle element must be registered. This is done
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* automatically when executing DragDrop.setHandleElId()
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* @method regHandle
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* @param {String} sDDId the DragDrop id this element is a handle for
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* @param {String} sHandleId the id of the element that is the drag
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* handle
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* @static
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*/
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regHandle: function(sDDId, sHandleId) {
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if (!this.handleIds[sDDId]) {
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this.handleIds[sDDId] = {};
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}
|
|
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"});
|