+++ /dev/null
-/*
-Copyright (c) 2009, Yahoo! Inc. All rights reserved.
-Code licensed under the BSD License:
-http://developer.yahoo.net/yui/license.txt
-version: 2.7.0
-*/
-/**
- * The drag and drop utility provides a framework for building drag and drop
- * applications. In addition to enabling drag and drop for specific elements,
- * the drag and drop elements are tracked by the manager class, and the
- * interactions between the various elements are tracked during the drag and
- * the implementing code is notified about these important moments.
- * @module dragdrop
- * @title Drag and Drop
- * @requires yahoo,dom,event
- * @namespace YAHOO.util
- */
-
-// Only load the library once. Rewriting the manager class would orphan
-// existing drag and drop instances.
-if (!YAHOO.util.DragDropMgr) {
-
-/**
- * DragDropMgr is a singleton that tracks the element interaction for
- * all DragDrop items in the window. Generally, you will not call
- * this class directly, but it does have helper methods that could
- * be useful in your DragDrop implementations.
- * @class DragDropMgr
- * @static
- */
-YAHOO.util.DragDropMgr = function() {
-
- var Event = YAHOO.util.Event,
- Dom = YAHOO.util.Dom;
-
- return {
- /**
- * This property is used to turn on global use of the shim element on all DragDrop instances, defaults to false for backcompat. (Use: YAHOO.util.DDM.useShim = true)
- * @property useShim
- * @type Boolean
- * @static
- */
- useShim: false,
- /**
- * This property is used to determine if the shim is active over the screen, default false.
- * @private
- * @property _shimActive
- * @type Boolean
- * @static
- */
- _shimActive: false,
- /**
- * This property is used when useShim is set on a DragDrop object to store the current state of DDM.useShim so it can be reset when a drag operation is done.
- * @private
- * @property _shimState
- * @type Boolean
- * @static
- */
- _shimState: false,
- /**
- * This property is used when useShim is set to true, it will set the opacity on the shim to .5 for debugging. Use: (YAHOO.util.DDM._debugShim = true;)
- * @private
- * @property _debugShim
- * @type Boolean
- * @static
- */
- _debugShim: false,
- /**
- * This method will create a shim element (giving it the id of yui-ddm-shim), it also attaches the mousemove and mouseup listeners to it and attaches a scroll listener on the window
- * @private
- * @method _sizeShim
- * @static
- */
- _createShim: function() {
- var s = document.createElement('div');
- s.id = 'yui-ddm-shim';
- if (document.body.firstChild) {
- document.body.insertBefore(s, document.body.firstChild);
- } else {
- document.body.appendChild(s);
- }
- s.style.display = 'none';
- s.style.backgroundColor = 'red';
- s.style.position = 'absolute';
- s.style.zIndex = '99999';
- Dom.setStyle(s, 'opacity', '0');
- this._shim = s;
- Event.on(s, "mouseup", this.handleMouseUp, this, true);
- Event.on(s, "mousemove", this.handleMouseMove, this, true);
- Event.on(window, 'scroll', this._sizeShim, this, true);
- },
- /**
- * This method will size the shim, called from activate and on window scroll event
- * @private
- * @method _sizeShim
- * @static
- */
- _sizeShim: function() {
- if (this._shimActive) {
- var s = this._shim;
- s.style.height = Dom.getDocumentHeight() + 'px';
- s.style.width = Dom.getDocumentWidth() + 'px';
- s.style.top = '0';
- s.style.left = '0';
- }
- },
- /**
- * This method will create the shim element if needed, then show the shim element, size the element and set the _shimActive property to true
- * @private
- * @method _activateShim
- * @static
- */
- _activateShim: function() {
- if (this.useShim) {
- if (!this._shim) {
- this._createShim();
- }
- this._shimActive = true;
- var s = this._shim,
- o = '0';
- if (this._debugShim) {
- o = '.5';
- }
- Dom.setStyle(s, 'opacity', o);
- this._sizeShim();
- s.style.display = 'block';
- }
- },
- /**
- * This method will hide the shim element and set the _shimActive property to false
- * @private
- * @method _deactivateShim
- * @static
- */
- _deactivateShim: function() {
- this._shim.style.display = 'none';
- this._shimActive = false;
- },
- /**
- * The HTML element created to use as a shim over the document to track mouse movements
- * @private
- * @property _shim
- * @type HTMLElement
- * @static
- */
- _shim: null,
- /**
- * Two dimensional Array of registered DragDrop objects. The first
- * dimension is the DragDrop item group, the second the DragDrop
- * object.
- * @property ids
- * @type {string: string}
- * @private
- * @static
- */
- ids: {},
-
- /**
- * Array of element ids defined as drag handles. Used to determine
- * if the element that generated the mousedown event is actually the
- * handle and not the html element itself.
- * @property handleIds
- * @type {string: string}
- * @private
- * @static
- */
- handleIds: {},
-
- /**
- * the DragDrop object that is currently being dragged
- * @property dragCurrent
- * @type DragDrop
- * @private
- * @static
- **/
- dragCurrent: null,
-
- /**
- * the DragDrop object(s) that are being hovered over
- * @property dragOvers
- * @type Array
- * @private
- * @static
- */
- dragOvers: {},
-
- /**
- * the X distance between the cursor and the object being dragged
- * @property deltaX
- * @type int
- * @private
- * @static
- */
- deltaX: 0,
-
- /**
- * the Y distance between the cursor and the object being dragged
- * @property deltaY
- * @type int
- * @private
- * @static
- */
- deltaY: 0,
-
- /**
- * Flag to determine if we should prevent the default behavior of the
- * events we define. By default this is true, but this can be set to
- * false if you need the default behavior (not recommended)
- * @property preventDefault
- * @type boolean
- * @static
- */
- preventDefault: true,
-
- /**
- * Flag to determine if we should stop the propagation of the events
- * we generate. This is true by default but you may want to set it to
- * false if the html element contains other features that require the
- * mouse click.
- * @property stopPropagation
- * @type boolean
- * @static
- */
- stopPropagation: true,
-
- /**
- * Internal flag that is set to true when drag and drop has been
- * initialized
- * @property initialized
- * @private
- * @static
- */
- initialized: false,
-
- /**
- * All drag and drop can be disabled.
- * @property locked
- * @private
- * @static
- */
- locked: false,
-
- /**
- * Provides additional information about the the current set of
- * interactions. Can be accessed from the event handlers. It
- * contains the following properties:
- *
- * out: onDragOut interactions
- * enter: onDragEnter interactions
- * over: onDragOver interactions
- * drop: onDragDrop interactions
- * point: The location of the cursor
- * draggedRegion: The location of dragged element at the time
- * of the interaction
- * sourceRegion: The location of the source elemtn at the time
- * of the interaction
- * validDrop: boolean
- * @property interactionInfo
- * @type object
- * @static
- */
- interactionInfo: null,
-
- /**
- * Called the first time an element is registered.
- * @method init
- * @private
- * @static
- */
- init: function() {
- this.initialized = true;
- },
-
- /**
- * In point mode, drag and drop interaction is defined by the
- * location of the cursor during the drag/drop
- * @property POINT
- * @type int
- * @static
- * @final
- */
- POINT: 0,
-
- /**
- * In intersect mode, drag and drop interaction is defined by the
- * cursor position or the amount of overlap of two or more drag and
- * drop objects.
- * @property INTERSECT
- * @type int
- * @static
- * @final
- */
- INTERSECT: 1,
-
- /**
- * In intersect mode, drag and drop interaction is defined only by the
- * overlap of two or more drag and drop objects.
- * @property STRICT_INTERSECT
- * @type int
- * @static
- * @final
- */
- STRICT_INTERSECT: 2,
-
- /**
- * The current drag and drop mode. Default: POINT
- * @property mode
- * @type int
- * @static
- */
- mode: 0,
-
- /**
- * Runs method on all drag and drop objects
- * @method _execOnAll
- * @private
- * @static
- */
- _execOnAll: function(sMethod, args) {
- for (var i in this.ids) {
- for (var j in this.ids[i]) {
- var oDD = this.ids[i][j];
- if (! this.isTypeOfDD(oDD)) {
- continue;
- }
- oDD[sMethod].apply(oDD, args);
- }
- }
- },
-
- /**
- * Drag and drop initialization. Sets up the global event handlers
- * @method _onLoad
- * @private
- * @static
- */
- _onLoad: function() {
-
- this.init();
-
- Event.on(document, "mouseup", this.handleMouseUp, this, true);
- Event.on(document, "mousemove", this.handleMouseMove, this, true);
- Event.on(window, "unload", this._onUnload, this, true);
- Event.on(window, "resize", this._onResize, this, true);
- // Event.on(window, "mouseout", this._test);
-
- },
-
- /**
- * Reset constraints on all drag and drop objs
- * @method _onResize
- * @private
- * @static
- */
- _onResize: function(e) {
- this._execOnAll("resetConstraints", []);
- },
-
- /**
- * Lock all drag and drop functionality
- * @method lock
- * @static
- */
- lock: function() { this.locked = true; },
-
- /**
- * Unlock all drag and drop functionality
- * @method unlock
- * @static
- */
- unlock: function() { this.locked = false; },
-
- /**
- * Is drag and drop locked?
- * @method isLocked
- * @return {boolean} True if drag and drop is locked, false otherwise.
- * @static
- */
- isLocked: function() { return this.locked; },
-
- /**
- * Location cache that is set for all drag drop objects when a drag is
- * initiated, cleared when the drag is finished.
- * @property locationCache
- * @private
- * @static
- */
- locationCache: {},
-
- /**
- * Set useCache to false if you want to force object the lookup of each
- * drag and drop linked element constantly during a drag.
- * @property useCache
- * @type boolean
- * @static
- */
- useCache: true,
-
- /**
- * The number of pixels that the mouse needs to move after the
- * mousedown before the drag is initiated. Default=3;
- * @property clickPixelThresh
- * @type int
- * @static
- */
- clickPixelThresh: 3,
-
- /**
- * The number of milliseconds after the mousedown event to initiate the
- * drag if we don't get a mouseup event. Default=1000
- * @property clickTimeThresh
- * @type int
- * @static
- */
- clickTimeThresh: 1000,
-
- /**
- * Flag that indicates that either the drag pixel threshold or the
- * mousdown time threshold has been met
- * @property dragThreshMet
- * @type boolean
- * @private
- * @static
- */
- dragThreshMet: false,
-
- /**
- * Timeout used for the click time threshold
- * @property clickTimeout
- * @type Object
- * @private
- * @static
- */
- clickTimeout: null,
-
- /**
- * The X position of the mousedown event stored for later use when a
- * drag threshold is met.
- * @property startX
- * @type int
- * @private
- * @static
- */
- startX: 0,
-
- /**
- * The Y position of the mousedown event stored for later use when a
- * drag threshold is met.
- * @property startY
- * @type int
- * @private
- * @static
- */
- startY: 0,
-
- /**
- * Flag to determine if the drag event was fired from the click timeout and
- * not the mouse move threshold.
- * @property fromTimeout
- * @type boolean
- * @private
- * @static
- */
- fromTimeout: false,
-
- /**
- * Each DragDrop instance must be registered with the DragDropMgr.
- * This is executed in DragDrop.init()
- * @method regDragDrop
- * @param {DragDrop} oDD the DragDrop object to register
- * @param {String} sGroup the name of the group this element belongs to
- * @static
- */
- regDragDrop: function(oDD, sGroup) {
- if (!this.initialized) { this.init(); }
-
- if (!this.ids[sGroup]) {
- this.ids[sGroup] = {};
- }
- this.ids[sGroup][oDD.id] = oDD;
- },
-
- /**
- * Removes the supplied dd instance from the supplied group. Executed
- * by DragDrop.removeFromGroup, so don't call this function directly.
- * @method removeDDFromGroup
- * @private
- * @static
- */
- removeDDFromGroup: function(oDD, sGroup) {
- if (!this.ids[sGroup]) {
- this.ids[sGroup] = {};
- }
-
- var obj = this.ids[sGroup];
- if (obj && obj[oDD.id]) {
- delete obj[oDD.id];
- }
- },
-
- /**
- * Unregisters a drag and drop item. This is executed in
- * DragDrop.unreg, use that method instead of calling this directly.
- * @method _remove
- * @private
- * @static
- */
- _remove: function(oDD) {
- for (var g in oDD.groups) {
- if (g) {
- var item = this.ids[g];
- if (item && item[oDD.id]) {
- delete item[oDD.id];
- }
- }
-
- }
- delete this.handleIds[oDD.id];
- },
-
- /**
- * Each DragDrop handle element must be registered. This is done
- * automatically when executing DragDrop.setHandleElId()
- * @method regHandle
- * @param {String} sDDId the DragDrop id this element is a handle for
- * @param {String} sHandleId the id of the element that is the drag
- * handle
- * @static
- */
- regHandle: function(sDDId, sHandleId) {
- if (!this.handleIds[sDDId]) {
- this.handleIds[sDDId] = {};
- }
- this.handleIds[sDDId][sHandleId] = sHandleId;
- },
-
- /**
- * Utility function to determine if a given element has been
- * registered as a drag drop item.
- * @method isDragDrop
- * @param {String} id the element id to check
- * @return {boolean} true if this element is a DragDrop item,
- * false otherwise
- * @static
- */
- isDragDrop: function(id) {
- return ( this.getDDById(id) ) ? true : false;
- },
-
- /**
- * Returns the drag and drop instances that are in all groups the
- * passed in instance belongs to.
- * @method getRelated
- * @param {DragDrop} p_oDD the obj to get related data for
- * @param {boolean} bTargetsOnly if true, only return targetable objs
- * @return {DragDrop[]} the related instances
- * @static
- */
- getRelated: function(p_oDD, bTargetsOnly) {
- var oDDs = [];
- for (var i in p_oDD.groups) {
- for (var j in this.ids[i]) {
- var dd = this.ids[i][j];
- if (! this.isTypeOfDD(dd)) {
- continue;
- }
- if (!bTargetsOnly || dd.isTarget) {
- oDDs[oDDs.length] = dd;
- }
- }
- }
-
- return oDDs;
- },
-
- /**
- * Returns true if the specified dd target is a legal target for
- * the specifice drag obj
- * @method isLegalTarget
- * @param {DragDrop} the drag obj
- * @param {DragDrop} the target
- * @return {boolean} true if the target is a legal target for the
- * dd obj
- * @static
- */
- isLegalTarget: function (oDD, oTargetDD) {
- var targets = this.getRelated(oDD, true);
- for (var i=0, len=targets.length;i<len;++i) {
- if (targets[i].id == oTargetDD.id) {
- return true;
- }
- }
-
- return false;
- },
-
- /**
- * My goal is to be able to transparently determine if an object is
- * typeof DragDrop, and the exact subclass of DragDrop. typeof
- * returns "object", oDD.constructor.toString() always returns
- * "DragDrop" and not the name of the subclass. So for now it just
- * evaluates a well-known variable in DragDrop.
- * @method isTypeOfDD
- * @param {Object} the object to evaluate
- * @return {boolean} true if typeof oDD = DragDrop
- * @static
- */
- isTypeOfDD: function (oDD) {
- return (oDD && oDD.__ygDragDrop);
- },
-
- /**
- * Utility function to determine if a given element has been
- * registered as a drag drop handle for the given Drag Drop object.
- * @method isHandle
- * @param {String} id the element id to check
- * @return {boolean} true if this element is a DragDrop handle, false
- * otherwise
- * @static
- */
- isHandle: function(sDDId, sHandleId) {
- return ( this.handleIds[sDDId] &&
- this.handleIds[sDDId][sHandleId] );
- },
-
- /**
- * Returns the DragDrop instance for a given id
- * @method getDDById
- * @param {String} id the id of the DragDrop object
- * @return {DragDrop} the drag drop object, null if it is not found
- * @static
- */
- getDDById: function(id) {
- for (var i in this.ids) {
- if (this.ids[i][id]) {
- return this.ids[i][id];
- }
- }
- return null;
- },
-
- /**
- * Fired after a registered DragDrop object gets the mousedown event.
- * Sets up the events required to track the object being dragged
- * @method handleMouseDown
- * @param {Event} e the event
- * @param oDD the DragDrop object being dragged
- * @private
- * @static
- */
- handleMouseDown: function(e, oDD) {
- //this._activateShim();
-
- this.currentTarget = YAHOO.util.Event.getTarget(e);
-
- this.dragCurrent = oDD;
-
- var el = oDD.getEl();
-
- // track start position
- this.startX = YAHOO.util.Event.getPageX(e);
- this.startY = YAHOO.util.Event.getPageY(e);
-
- this.deltaX = this.startX - el.offsetLeft;
- this.deltaY = this.startY - el.offsetTop;
-
- this.dragThreshMet = false;
-
- this.clickTimeout = setTimeout(
- function() {
- var DDM = YAHOO.util.DDM;
- DDM.startDrag(DDM.startX, DDM.startY);
- DDM.fromTimeout = true;
- },
- this.clickTimeThresh );
- },
-
- /**
- * Fired when either the drag pixel threshold or the mousedown hold
- * time threshold has been met.
- * @method startDrag
- * @param x {int} the X position of the original mousedown
- * @param y {int} the Y position of the original mousedown
- * @static
- */
- startDrag: function(x, y) {
- if (this.dragCurrent && this.dragCurrent.useShim) {
- this._shimState = this.useShim;
- this.useShim = true;
- }
- this._activateShim();
- clearTimeout(this.clickTimeout);
- var dc = this.dragCurrent;
- if (dc && dc.events.b4StartDrag) {
- dc.b4StartDrag(x, y);
- dc.fireEvent('b4StartDragEvent', { x: x, y: y });
- }
- if (dc && dc.events.startDrag) {
- dc.startDrag(x, y);
- dc.fireEvent('startDragEvent', { x: x, y: y });
- }
- this.dragThreshMet = true;
- },
-
- /**
- * Internal function to handle the mouseup event. Will be invoked
- * from the context of the document.
- * @method handleMouseUp
- * @param {Event} e the event
- * @private
- * @static
- */
- handleMouseUp: function(e) {
- if (this.dragCurrent) {
- clearTimeout(this.clickTimeout);
-
- if (this.dragThreshMet) {
- if (this.fromTimeout) {
- this.fromTimeout = false;
- this.handleMouseMove(e);
- }
- this.fromTimeout = false;
- this.fireEvents(e, true);
- } else {
- }
-
- this.stopDrag(e);
-
- this.stopEvent(e);
- }
- },
-
- /**
- * Utility to stop event propagation and event default, if these
- * features are turned on.
- * @method stopEvent
- * @param {Event} e the event as returned by this.getEvent()
- * @static
- */
- stopEvent: function(e) {
- if (this.stopPropagation) {
- YAHOO.util.Event.stopPropagation(e);
- }
-
- if (this.preventDefault) {
- YAHOO.util.Event.preventDefault(e);
- }
- },
-
- /**
- * Ends the current drag, cleans up the state, and fires the endDrag
- * and mouseUp events. Called internally when a mouseup is detected
- * during the drag. Can be fired manually during the drag by passing
- * either another event (such as the mousemove event received in onDrag)
- * or a fake event with pageX and pageY defined (so that endDrag and
- * onMouseUp have usable position data.). Alternatively, pass true
- * for the silent parameter so that the endDrag and onMouseUp events
- * are skipped (so no event data is needed.)
- *
- * @method stopDrag
- * @param {Event} e the mouseup event, another event (or a fake event)
- * with pageX and pageY defined, or nothing if the
- * silent parameter is true
- * @param {boolean} silent skips the enddrag and mouseup events if true
- * @static
- */
- stopDrag: function(e, silent) {
- var dc = this.dragCurrent;
- // Fire the drag end event for the item that was dragged
- if (dc && !silent) {
- if (this.dragThreshMet) {
- if (dc.events.b4EndDrag) {
- dc.b4EndDrag(e);
- dc.fireEvent('b4EndDragEvent', { e: e });
- }
- if (dc.events.endDrag) {
- dc.endDrag(e);
- dc.fireEvent('endDragEvent', { e: e });
- }
- }
- if (dc.events.mouseUp) {
- dc.onMouseUp(e);
- dc.fireEvent('mouseUpEvent', { e: e });
- }
- }
-
- if (this._shimActive) {
- this._deactivateShim();
- if (this.dragCurrent && this.dragCurrent.useShim) {
- this.useShim = this._shimState;
- this._shimState = false;
- }
- }
-
- this.dragCurrent = null;
- this.dragOvers = {};
- },
-
- /**
- * Internal function to handle the mousemove event. Will be invoked
- * from the context of the html element.
- *
- * @TODO figure out what we can do about mouse events lost when the
- * user drags objects beyond the window boundary. Currently we can
- * detect this in internet explorer by verifying that the mouse is
- * down during the mousemove event. Firefox doesn't give us the
- * button state on the mousemove event.
- * @method handleMouseMove
- * @param {Event} e the event
- * @private
- * @static
- */
- handleMouseMove: function(e) {
-
- var dc = this.dragCurrent;
- if (dc) {
-
- // var button = e.which || e.button;
-
- // check for IE mouseup outside of page boundary
- if (YAHOO.util.Event.isIE && !e.button) {
- this.stopEvent(e);
- return this.handleMouseUp(e);
- } else {
- if (e.clientX < 0 || e.clientY < 0) {
- //This will stop the element from leaving the viewport in FF, Opera & Safari
- //Not turned on yet
- //this.stopEvent(e);
- //return false;
- }
- }
-
- if (!this.dragThreshMet) {
- var diffX = Math.abs(this.startX - YAHOO.util.Event.getPageX(e));
- var diffY = Math.abs(this.startY - YAHOO.util.Event.getPageY(e));
- if (diffX > this.clickPixelThresh ||
- diffY > this.clickPixelThresh) {
- this.startDrag(this.startX, this.startY);
- }
- }
-
- if (this.dragThreshMet) {
- if (dc && dc.events.b4Drag) {
- dc.b4Drag(e);
- dc.fireEvent('b4DragEvent', { e: e});
- }
- if (dc && dc.events.drag) {
- dc.onDrag(e);
- dc.fireEvent('dragEvent', { e: e});
- }
- if (dc) {
- this.fireEvents(e, false);
- }
- }
-
- this.stopEvent(e);
- }
- },
-
- /**
- * Iterates over all of the DragDrop elements to find ones we are
- * hovering over or dropping on
- * @method fireEvents
- * @param {Event} e the event
- * @param {boolean} isDrop is this a drop op or a mouseover op?
- * @private
- * @static
- */
- fireEvents: function(e, isDrop) {
- var dc = this.dragCurrent;
-
- // If the user did the mouse up outside of the window, we could
- // get here even though we have ended the drag.
- // If the config option dragOnly is true, bail out and don't fire the events
- if (!dc || dc.isLocked() || dc.dragOnly) {
- return;
- }
-
- var x = YAHOO.util.Event.getPageX(e),
- y = YAHOO.util.Event.getPageY(e),
- pt = new YAHOO.util.Point(x,y),
- pos = dc.getTargetCoord(pt.x, pt.y),
- el = dc.getDragEl(),
- events = ['out', 'over', 'drop', 'enter'],
- curRegion = new YAHOO.util.Region( pos.y,
- pos.x + el.offsetWidth,
- pos.y + el.offsetHeight,
- pos.x ),
-
- oldOvers = [], // cache the previous dragOver array
- inGroupsObj = {},
- inGroups = [],
- data = {
- outEvts: [],
- overEvts: [],
- dropEvts: [],
- enterEvts: []
- };
-
-
- // Check to see if the object(s) we were hovering over is no longer
- // being hovered over so we can fire the onDragOut event
- for (var i in this.dragOvers) {
-
- var ddo = this.dragOvers[i];
-
- if (! this.isTypeOfDD(ddo)) {
- continue;
- }
- if (! this.isOverTarget(pt, ddo, this.mode, curRegion)) {
- data.outEvts.push( ddo );
- }
-
- oldOvers[i] = true;
- delete this.dragOvers[i];
- }
-
- for (var sGroup in dc.groups) {
-
- if ("string" != typeof sGroup) {
- continue;
- }
-
- for (i in this.ids[sGroup]) {
- var oDD = this.ids[sGroup][i];
- if (! this.isTypeOfDD(oDD)) {
- continue;
- }
-
- if (oDD.isTarget && !oDD.isLocked() && oDD != dc) {
- if (this.isOverTarget(pt, oDD, this.mode, curRegion)) {
- inGroupsObj[sGroup] = true;
- // look for drop interactions
- if (isDrop) {
- data.dropEvts.push( oDD );
- // look for drag enter and drag over interactions
- } else {
-
- // initial drag over: dragEnter fires
- if (!oldOvers[oDD.id]) {
- data.enterEvts.push( oDD );
- // subsequent drag overs: dragOver fires
- } else {
- data.overEvts.push( oDD );
- }
-
- this.dragOvers[oDD.id] = oDD;
- }
- }
- }
- }
- }
-
- this.interactionInfo = {
- out: data.outEvts,
- enter: data.enterEvts,
- over: data.overEvts,
- drop: data.dropEvts,
- point: pt,
- draggedRegion: curRegion,
- sourceRegion: this.locationCache[dc.id],
- validDrop: isDrop
- };
-
-
- for (var inG in inGroupsObj) {
- inGroups.push(inG);
- }
-
- // notify about a drop that did not find a target
- if (isDrop && !data.dropEvts.length) {
- this.interactionInfo.validDrop = false;
- if (dc.events.invalidDrop) {
- dc.onInvalidDrop(e);
- dc.fireEvent('invalidDropEvent', { e: e });
- }
- }
- for (i = 0; i < events.length; i++) {
- var tmp = null;
- if (data[events[i] + 'Evts']) {
- tmp = data[events[i] + 'Evts'];
- }
- if (tmp && tmp.length) {
- var type = events[i].charAt(0).toUpperCase() + events[i].substr(1),
- ev = 'onDrag' + type,
- b4 = 'b4Drag' + type,
- cev = 'drag' + type + 'Event',
- check = 'drag' + type;
- if (this.mode) {
- if (dc.events[b4]) {
- dc[b4](e, tmp, inGroups);
- dc.fireEvent(b4 + 'Event', { event: e, info: tmp, group: inGroups });
-
- }
- if (dc.events[check]) {
- dc[ev](e, tmp, inGroups);
- dc.fireEvent(cev, { event: e, info: tmp, group: inGroups });
- }
- } else {
- for (var b = 0, len = tmp.length; b < len; ++b) {
- if (dc.events[b4]) {
- dc[b4](e, tmp[b].id, inGroups[0]);
- dc.fireEvent(b4 + 'Event', { event: e, info: tmp[b].id, group: inGroups[0] });
- }
- if (dc.events[check]) {
- dc[ev](e, tmp[b].id, inGroups[0]);
- dc.fireEvent(cev, { event: e, info: tmp[b].id, group: inGroups[0] });
- }
- }
- }
- }
- }
- },
-
- /**
- * Helper function for getting the best match from the list of drag
- * and drop objects returned by the drag and drop events when we are
- * in INTERSECT mode. It returns either the first object that the
- * cursor is over, or the object that has the greatest overlap with
- * the dragged element.
- * @method getBestMatch
- * @param {DragDrop[]} dds The array of drag and drop objects
- * targeted
- * @return {DragDrop} The best single match
- * @static
- */
- getBestMatch: function(dds) {
- var winner = null;
-
- var len = dds.length;
-
- if (len == 1) {
- winner = dds[0];
- } else {
- // Loop through the targeted items
- for (var i=0; i<len; ++i) {
- var dd = dds[i];
- // If the cursor is over the object, it wins. If the
- // cursor is over multiple matches, the first one we come
- // to wins.
- if (this.mode == this.INTERSECT && dd.cursorIsOver) {
- winner = dd;
- break;
- // Otherwise the object with the most overlap wins
- } else {
- if (!winner || !winner.overlap || (dd.overlap &&
- winner.overlap.getArea() < dd.overlap.getArea())) {
- winner = dd;
- }
- }
- }
- }
-
- return winner;
- },
-
- /**
- * Refreshes the cache of the top-left and bottom-right points of the
- * drag and drop objects in the specified group(s). This is in the
- * format that is stored in the drag and drop instance, so typical
- * usage is:
- * <code>
- * YAHOO.util.DragDropMgr.refreshCache(ddinstance.groups);
- * </code>
- * Alternatively:
- * <code>
- * YAHOO.util.DragDropMgr.refreshCache({group1:true, group2:true});
- * </code>
- * @TODO this really should be an indexed array. Alternatively this
- * method could accept both.
- * @method refreshCache
- * @param {Object} groups an associative array of groups to refresh
- * @static
- */
- refreshCache: function(groups) {
-
- // refresh everything if group array is not provided
- var g = groups || this.ids;
-
- for (var sGroup in g) {
- if ("string" != typeof sGroup) {
- continue;
- }
- for (var i in this.ids[sGroup]) {
- var oDD = this.ids[sGroup][i];
-
- if (this.isTypeOfDD(oDD)) {
- var loc = this.getLocation(oDD);
- if (loc) {
- this.locationCache[oDD.id] = loc;
- } else {
- delete this.locationCache[oDD.id];
- }
- }
- }
- }
- },
-
- /**
- * This checks to make sure an element exists and is in the DOM. The
- * main purpose is to handle cases where innerHTML is used to remove
- * drag and drop objects from the DOM. IE provides an 'unspecified
- * error' when trying to access the offsetParent of such an element
- * @method verifyEl
- * @param {HTMLElement} el the element to check
- * @return {boolean} true if the element looks usable
- * @static
- */
- verifyEl: function(el) {
- try {
- if (el) {
- var parent = el.offsetParent;
- if (parent) {
- return true;
- }
- }
- } catch(e) {
- }
-
- return false;
- },
-
- /**
- * Returns a Region object containing the drag and drop element's position
- * and size, including the padding configured for it
- * @method getLocation
- * @param {DragDrop} oDD the drag and drop object to get the
- * location for
- * @return {YAHOO.util.Region} a Region object representing the total area
- * the element occupies, including any padding
- * the instance is configured for.
- * @static
- */
- getLocation: function(oDD) {
- if (! this.isTypeOfDD(oDD)) {
- return null;
- }
-
- var el = oDD.getEl(), pos, x1, x2, y1, y2, t, r, b, l;
-
- try {
- pos= YAHOO.util.Dom.getXY(el);
- } catch (e) { }
-
- if (!pos) {
- return null;
- }
-
- x1 = pos[0];
- x2 = x1 + el.offsetWidth;
- y1 = pos[1];
- y2 = y1 + el.offsetHeight;
-
- t = y1 - oDD.padding[0];
- r = x2 + oDD.padding[1];
- b = y2 + oDD.padding[2];
- l = x1 - oDD.padding[3];
-
- return new YAHOO.util.Region( t, r, b, l );
- },
-
- /**
- * Checks the cursor location to see if it over the target
- * @method isOverTarget
- * @param {YAHOO.util.Point} pt The point to evaluate
- * @param {DragDrop} oTarget the DragDrop object we are inspecting
- * @param {boolean} intersect true if we are in intersect mode
- * @param {YAHOO.util.Region} pre-cached location of the dragged element
- * @return {boolean} true if the mouse is over the target
- * @private
- * @static
- */
- isOverTarget: function(pt, oTarget, intersect, curRegion) {
- // use cache if available
- var loc = this.locationCache[oTarget.id];
- if (!loc || !this.useCache) {
- loc = this.getLocation(oTarget);
- this.locationCache[oTarget.id] = loc;
-
- }
-
- if (!loc) {
- return false;
- }
-
- oTarget.cursorIsOver = loc.contains( pt );
-
- // DragDrop is using this as a sanity check for the initial mousedown
- // in this case we are done. In POINT mode, if the drag obj has no
- // contraints, we are done. Otherwise we need to evaluate the
- // region the target as occupies to determine if the dragged element
- // overlaps with it.
-
- var dc = this.dragCurrent;
- if (!dc || (!intersect && !dc.constrainX && !dc.constrainY)) {
-
- //if (oTarget.cursorIsOver) {
- //}
- return oTarget.cursorIsOver;
- }
-
- oTarget.overlap = null;
-
-
- // Get the current location of the drag element, this is the
- // location of the mouse event less the delta that represents
- // where the original mousedown happened on the element. We
- // need to consider constraints and ticks as well.
-
- if (!curRegion) {
- var pos = dc.getTargetCoord(pt.x, pt.y);
- var el = dc.getDragEl();
- curRegion = new YAHOO.util.Region( pos.y,
- pos.x + el.offsetWidth,
- pos.y + el.offsetHeight,
- pos.x );
- }
-
- var overlap = curRegion.intersect(loc);
-
- if (overlap) {
- oTarget.overlap = overlap;
- return (intersect) ? true : oTarget.cursorIsOver;
- } else {
- return false;
- }
- },
-
- /**
- * unload event handler
- * @method _onUnload
- * @private
- * @static
- */
- _onUnload: function(e, me) {
- this.unregAll();
- },
-
- /**
- * Cleans up the drag and drop events and objects.
- * @method unregAll
- * @private
- * @static
- */
- unregAll: function() {
-
- if (this.dragCurrent) {
- this.stopDrag();
- this.dragCurrent = null;
- }
-
- this._execOnAll("unreg", []);
-
- //for (var i in this.elementCache) {
- //delete this.elementCache[i];
- //}
- //this.elementCache = {};
-
- this.ids = {};
- },
-
- /**
- * A cache of DOM elements
- * @property elementCache
- * @private
- * @static
- * @deprecated elements are not cached now
- */
- elementCache: {},
-
- /**
- * Get the wrapper for the DOM element specified
- * @method getElWrapper
- * @param {String} id the id of the element to get
- * @return {YAHOO.util.DDM.ElementWrapper} the wrapped element
- * @private
- * @deprecated This wrapper isn't that useful
- * @static
- */
- getElWrapper: function(id) {
- var oWrapper = this.elementCache[id];
- if (!oWrapper || !oWrapper.el) {
- oWrapper = this.elementCache[id] =
- new this.ElementWrapper(YAHOO.util.Dom.get(id));
- }
- return oWrapper;
- },
-
- /**
- * Returns the actual DOM element
- * @method getElement
- * @param {String} id the id of the elment to get
- * @return {Object} The element
- * @deprecated use YAHOO.util.Dom.get instead
- * @static
- */
- getElement: function(id) {
- return YAHOO.util.Dom.get(id);
- },
-
- /**
- * Returns the style property for the DOM element (i.e.,
- * document.getElById(id).style)
- * @method getCss
- * @param {String} id the id of the elment to get
- * @return {Object} The style property of the element
- * @deprecated use YAHOO.util.Dom instead
- * @static
- */
- getCss: function(id) {
- var el = YAHOO.util.Dom.get(id);
- return (el) ? el.style : null;
- },
-
- /**
- * Inner class for cached elements
- * @class DragDropMgr.ElementWrapper
- * @for DragDropMgr
- * @private
- * @deprecated
- */
- ElementWrapper: function(el) {
- /**
- * The element
- * @property el
- */
- this.el = el || null;
- /**
- * The element id
- * @property id
- */
- this.id = this.el && el.id;
- /**
- * A reference to the style property
- * @property css
- */
- this.css = this.el && el.style;
- },
-
- /**
- * Returns the X position of an html element
- * @method getPosX
- * @param el the element for which to get the position
- * @return {int} the X coordinate
- * @for DragDropMgr
- * @deprecated use YAHOO.util.Dom.getX instead
- * @static
- */
- getPosX: function(el) {
- return YAHOO.util.Dom.getX(el);
- },
-
- /**
- * Returns the Y position of an html element
- * @method getPosY
- * @param el the element for which to get the position
- * @return {int} the Y coordinate
- * @deprecated use YAHOO.util.Dom.getY instead
- * @static
- */
- getPosY: function(el) {
- return YAHOO.util.Dom.getY(el);
- },
-
- /**
- * Swap two nodes. In IE, we use the native method, for others we
- * emulate the IE behavior
- * @method swapNode
- * @param n1 the first node to swap
- * @param n2 the other node to swap
- * @static
- */
- swapNode: function(n1, n2) {
- if (n1.swapNode) {
- n1.swapNode(n2);
- } else {
- var p = n2.parentNode;
- var s = n2.nextSibling;
-
- if (s == n1) {
- p.insertBefore(n1, n2);
- } else if (n2 == n1.nextSibling) {
- p.insertBefore(n2, n1);
- } else {
- n1.parentNode.replaceChild(n2, n1);
- p.insertBefore(n1, s);
- }
- }
- },
-
- /**
- * Returns the current scroll position
- * @method getScroll
- * @private
- * @static
- */
- getScroll: function () {
- var t, l, dde=document.documentElement, db=document.body;
- if (dde && (dde.scrollTop || dde.scrollLeft)) {
- t = dde.scrollTop;
- l = dde.scrollLeft;
- } else if (db) {
- t = db.scrollTop;
- l = db.scrollLeft;
- } else {
- }
- return { top: t, left: l };
- },
-
- /**
- * Returns the specified element style property
- * @method getStyle
- * @param {HTMLElement} el the element
- * @param {string} styleProp the style property
- * @return {string} The value of the style property
- * @deprecated use YAHOO.util.Dom.getStyle
- * @static
- */
- getStyle: function(el, styleProp) {
- return YAHOO.util.Dom.getStyle(el, styleProp);
- },
-
- /**
- * Gets the scrollTop
- * @method getScrollTop
- * @return {int} the document's scrollTop
- * @static
- */
- getScrollTop: function () { return this.getScroll().top; },
-
- /**
- * Gets the scrollLeft
- * @method getScrollLeft
- * @return {int} the document's scrollTop
- * @static
- */
- getScrollLeft: function () { return this.getScroll().left; },
-
- /**
- * Sets the x/y position of an element to the location of the
- * target element.
- * @method moveToEl
- * @param {HTMLElement} moveEl The element to move
- * @param {HTMLElement} targetEl The position reference element
- * @static
- */
- moveToEl: function (moveEl, targetEl) {
- var aCoord = YAHOO.util.Dom.getXY(targetEl);
- YAHOO.util.Dom.setXY(moveEl, aCoord);
- },
-
- /**
- * Gets the client height
- * @method getClientHeight
- * @return {int} client height in px
- * @deprecated use YAHOO.util.Dom.getViewportHeight instead
- * @static
- */
- getClientHeight: function() {
- return YAHOO.util.Dom.getViewportHeight();
- },
-
- /**
- * Gets the client width
- * @method getClientWidth
- * @return {int} client width in px
- * @deprecated use YAHOO.util.Dom.getViewportWidth instead
- * @static
- */
- getClientWidth: function() {
- return YAHOO.util.Dom.getViewportWidth();
- },
-
- /**
- * Numeric array sort function
- * @method numericSort
- * @static
- */
- numericSort: function(a, b) { return (a - b); },
-
- /**
- * Internal counter
- * @property _timeoutCount
- * @private
- * @static
- */
- _timeoutCount: 0,
-
- /**
- * Trying to make the load order less important. Without this we get
- * an error if this file is loaded before the Event Utility.
- * @method _addListeners
- * @private
- * @static
- */
- _addListeners: function() {
- var DDM = YAHOO.util.DDM;
- if ( YAHOO.util.Event && document ) {
- DDM._onLoad();
- } else {
- if (DDM._timeoutCount > 2000) {
- } else {
- setTimeout(DDM._addListeners, 10);
- if (document && document.body) {
- DDM._timeoutCount += 1;
- }
- }
- }
- },
-
- /**
- * Recursively searches the immediate parent and all child nodes for
- * the handle element in order to determine wheter or not it was
- * clicked.
- * @method handleWasClicked
- * @param node the html element to inspect
- * @static
- */
- handleWasClicked: function(node, id) {
- if (this.isHandle(id, node.id)) {
- return true;
- } else {
- // check to see if this is a text node child of the one we want
- var p = node.parentNode;
-
- while (p) {
- if (this.isHandle(id, p.id)) {
- return true;
- } else {
- p = p.parentNode;
- }
- }
- }
-
- return false;
- }
-
- };
-
-}();
-
-// shorter alias, save a few bytes
-YAHOO.util.DDM = YAHOO.util.DragDropMgr;
-YAHOO.util.DDM._addListeners();
-
-}
-
-(function() {
-
-var Event=YAHOO.util.Event;
-var Dom=YAHOO.util.Dom;
-
-/**
- * Defines the interface and base operation of items that that can be
- * dragged or can be drop targets. It was designed to be extended, overriding
- * the event handlers for startDrag, onDrag, onDragOver, onDragOut.
- * Up to three html elements can be associated with a DragDrop instance:
- * <ul>
- * <li>linked element: the element that is passed into the constructor.
- * This is the element which defines the boundaries for interaction with
- * other DragDrop objects.</li>
- * <li>handle element(s): The drag operation only occurs if the element that
- * was clicked matches a handle element. By default this is the linked
- * element, but there are times that you will want only a portion of the
- * linked element to initiate the drag operation, and the setHandleElId()
- * method provides a way to define this.</li>
- * <li>drag element: this represents an the element that would be moved along
- * with the cursor during a drag operation. By default, this is the linked
- * element itself as in {@link YAHOO.util.DD}. setDragElId() lets you define
- * a separate element that would be moved, as in {@link YAHOO.util.DDProxy}
- * </li>
- * </ul>
- * This class should not be instantiated until the onload event to ensure that
- * the associated elements are available.
- * The following would define a DragDrop obj that would interact with any
- * other DragDrop obj in the "group1" group:
- * <pre>
- * dd = new YAHOO.util.DragDrop("div1", "group1");
- * </pre>
- * Since none of the event handlers have been implemented, nothing would
- * actually happen if you were to run the code above. Normally you would
- * override this class or one of the default implementations, but you can
- * also override the methods you want on an instance of the class...
- * <pre>
- * dd.onDragDrop = function(e, id) {
- * alert("dd was dropped on " + id);
- * }
- * </pre>
- * @namespace YAHOO.util
- * @class DragDrop
- * @constructor
- * @param {String} id of the element that is linked to this instance
- * @param {String} sGroup the group of related DragDrop objects
- * @param {object} config an object containing configurable attributes
- * Valid properties for DragDrop:
- * padding, isTarget, maintainOffset, primaryButtonOnly,
- */
-YAHOO.util.DragDrop = function(id, sGroup, config) {
- if (id) {
- this.init(id, sGroup, config);
- }
-};
-
-YAHOO.util.DragDrop.prototype = {
- /**
- * An Object Literal containing the events that we will be using: mouseDown, b4MouseDown, mouseUp, b4StartDrag, startDrag, b4EndDrag, endDrag, mouseUp, drag, b4Drag, invalidDrop, b4DragOut, dragOut, dragEnter, b4DragOver, dragOver, b4DragDrop, dragDrop
- * By setting any of these to false, then event will not be fired.
- * @property events
- * @type object
- */
- events: null,
- /**
- * @method on
- * @description Shortcut for EventProvider.subscribe, see <a href="YAHOO.util.EventProvider.html#subscribe">YAHOO.util.EventProvider.subscribe</a>
- */
- on: function() {
- this.subscribe.apply(this, arguments);
- },
- /**
- * The id of the element associated with this object. This is what we
- * refer to as the "linked element" because the size and position of
- * this element is used to determine when the drag and drop objects have
- * interacted.
- * @property id
- * @type String
- */
- id: null,
-
- /**
- * Configuration attributes passed into the constructor
- * @property config
- * @type object
- */
- config: null,
-
- /**
- * The id of the element that will be dragged. By default this is same
- * as the linked element , but could be changed to another element. Ex:
- * YAHOO.util.DDProxy
- * @property dragElId
- * @type String
- * @private
- */
- dragElId: null,
-
- /**
- * the id of the element that initiates the drag operation. By default
- * this is the linked element, but could be changed to be a child of this
- * element. This lets us do things like only starting the drag when the
- * header element within the linked html element is clicked.
- * @property handleElId
- * @type String
- * @private
- */
- handleElId: null,
-
- /**
- * An associative array of HTML tags that will be ignored if clicked.
- * @property invalidHandleTypes
- * @type {string: string}
- */
- invalidHandleTypes: null,
-
- /**
- * An associative array of ids for elements that will be ignored if clicked
- * @property invalidHandleIds
- * @type {string: string}
- */
- invalidHandleIds: null,
-
- /**
- * An indexted array of css class names for elements that will be ignored
- * if clicked.
- * @property invalidHandleClasses
- * @type string[]
- */
- invalidHandleClasses: null,
-
- /**
- * The linked element's absolute X position at the time the drag was
- * started
- * @property startPageX
- * @type int
- * @private
- */
- startPageX: 0,
-
- /**
- * The linked element's absolute X position at the time the drag was
- * started
- * @property startPageY
- * @type int
- * @private
- */
- startPageY: 0,
-
- /**
- * The group defines a logical collection of DragDrop objects that are
- * related. Instances only get events when interacting with other
- * DragDrop object in the same group. This lets us define multiple
- * groups using a single DragDrop subclass if we want.
- * @property groups
- * @type {string: string}
- */
- groups: null,
-
- /**
- * Individual drag/drop instances can be locked. This will prevent
- * onmousedown start drag.
- * @property locked
- * @type boolean
- * @private
- */
- locked: false,
-
- /**
- * Lock this instance
- * @method lock
- */
- lock: function() { this.locked = true; },
-
- /**
- * Unlock this instace
- * @method unlock
- */
- unlock: function() { this.locked = false; },
-
- /**
- * By default, all instances can be a drop target. This can be disabled by
- * setting isTarget to false.
- * @property isTarget
- * @type boolean
- */
- isTarget: true,
-
- /**
- * The padding configured for this drag and drop object for calculating
- * the drop zone intersection with this object.
- * @property padding
- * @type int[]
- */
- padding: null,
- /**
- * If this flag is true, do not fire drop events. The element is a drag only element (for movement not dropping)
- * @property dragOnly
- * @type Boolean
- */
- dragOnly: false,
-
- /**
- * If this flag is true, a shim will be placed over the screen/viewable area to track mouse events. Should help with dragging elements over iframes and other controls.
- * @property useShim
- * @type Boolean
- */
- useShim: false,
-
- /**
- * Cached reference to the linked element
- * @property _domRef
- * @private
- */
- _domRef: null,
-
- /**
- * Internal typeof flag
- * @property __ygDragDrop
- * @private
- */
- __ygDragDrop: true,
-
- /**
- * Set to true when horizontal contraints are applied
- * @property constrainX
- * @type boolean
- * @private
- */
- constrainX: false,
-
- /**
- * Set to true when vertical contraints are applied
- * @property constrainY
- * @type boolean
- * @private
- */
- constrainY: false,
-
- /**
- * The left constraint
- * @property minX
- * @type int
- * @private
- */
- minX: 0,
-
- /**
- * The right constraint
- * @property maxX
- * @type int
- * @private
- */
- maxX: 0,
-
- /**
- * The up constraint
- * @property minY
- * @type int
- * @type int
- * @private
- */
- minY: 0,
-
- /**
- * The down constraint
- * @property maxY
- * @type int
- * @private
- */
- maxY: 0,
-
- /**
- * The difference between the click position and the source element's location
- * @property deltaX
- * @type int
- * @private
- */
- deltaX: 0,
-
- /**
- * The difference between the click position and the source element's location
- * @property deltaY
- * @type int
- * @private
- */
- deltaY: 0,
-
- /**
- * Maintain offsets when we resetconstraints. Set to true when you want
- * the position of the element relative to its parent to stay the same
- * when the page changes
- *
- * @property maintainOffset
- * @type boolean
- */
- maintainOffset: false,
-
- /**
- * Array of pixel locations the element will snap to if we specified a
- * horizontal graduation/interval. This array is generated automatically
- * when you define a tick interval.
- * @property xTicks
- * @type int[]
- */
- xTicks: null,
-
- /**
- * Array of pixel locations the element will snap to if we specified a
- * vertical graduation/interval. This array is generated automatically
- * when you define a tick interval.
- * @property yTicks
- * @type int[]
- */
- yTicks: null,
-
- /**
- * By default the drag and drop instance will only respond to the primary
- * button click (left button for a right-handed mouse). Set to true to
- * allow drag and drop to start with any mouse click that is propogated
- * by the browser
- * @property primaryButtonOnly
- * @type boolean
- */
- primaryButtonOnly: true,
-
- /**
- * The availabe property is false until the linked dom element is accessible.
- * @property available
- * @type boolean
- */
- available: false,
-
- /**
- * By default, drags can only be initiated if the mousedown occurs in the
- * region the linked element is. This is done in part to work around a
- * bug in some browsers that mis-report the mousedown if the previous
- * mouseup happened outside of the window. This property is set to true
- * if outer handles are defined.
- *
- * @property hasOuterHandles
- * @type boolean
- * @default false
- */
- hasOuterHandles: false,
-
- /**
- * Property that is assigned to a drag and drop object when testing to
- * see if it is being targeted by another dd object. This property
- * can be used in intersect mode to help determine the focus of
- * the mouse interaction. DDM.getBestMatch uses this property first to
- * determine the closest match in INTERSECT mode when multiple targets
- * are part of the same interaction.
- * @property cursorIsOver
- * @type boolean
- */
- cursorIsOver: false,
-
- /**
- * Property that is assigned to a drag and drop object when testing to
- * see if it is being targeted by another dd object. This is a region
- * that represents the area the draggable element overlaps this target.
- * DDM.getBestMatch uses this property to compare the size of the overlap
- * to that of other targets in order to determine the closest match in
- * INTERSECT mode when multiple targets are part of the same interaction.
- * @property overlap
- * @type YAHOO.util.Region
- */
- overlap: null,
-
- /**
- * Code that executes immediately before the startDrag event
- * @method b4StartDrag
- * @private
- */
- b4StartDrag: function(x, y) { },
-
- /**
- * Abstract method called after a drag/drop object is clicked
- * and the drag or mousedown time thresholds have beeen met.
- * @method startDrag
- * @param {int} X click location
- * @param {int} Y click location
- */
- startDrag: function(x, y) { /* override this */ },
-
- /**
- * Code that executes immediately before the onDrag event
- * @method b4Drag
- * @private
- */
- b4Drag: function(e) { },
-
- /**
- * Abstract method called during the onMouseMove event while dragging an
- * object.
- * @method onDrag
- * @param {Event} e the mousemove event
- */
- onDrag: function(e) { /* override this */ },
-
- /**
- * Abstract method called when this element fist begins hovering over
- * another DragDrop obj
- * @method onDragEnter
- * @param {Event} e the mousemove event
- * @param {String|DragDrop[]} id In POINT mode, the element
- * id this is hovering over. In INTERSECT mode, an array of one or more
- * dragdrop items being hovered over.
- */
- onDragEnter: function(e, id) { /* override this */ },
-
- /**
- * Code that executes immediately before the onDragOver event
- * @method b4DragOver
- * @private
- */
- b4DragOver: function(e) { },
-
- /**
- * Abstract method called when this element is hovering over another
- * DragDrop obj
- * @method onDragOver
- * @param {Event} e the mousemove event
- * @param {String|DragDrop[]} id In POINT mode, the element
- * id this is hovering over. In INTERSECT mode, an array of dd items
- * being hovered over.
- */
- onDragOver: function(e, id) { /* override this */ },
-
- /**
- * Code that executes immediately before the onDragOut event
- * @method b4DragOut
- * @private
- */
- b4DragOut: function(e) { },
-
- /**
- * Abstract method called when we are no longer hovering over an element
- * @method onDragOut
- * @param {Event} e the mousemove event
- * @param {String|DragDrop[]} id In POINT mode, the element
- * id this was hovering over. In INTERSECT mode, an array of dd items
- * that the mouse is no longer over.
- */
- onDragOut: function(e, id) { /* override this */ },
-
- /**
- * Code that executes immediately before the onDragDrop event
- * @method b4DragDrop
- * @private
- */
- b4DragDrop: function(e) { },
-
- /**
- * Abstract method called when this item is dropped on another DragDrop
- * obj
- * @method onDragDrop
- * @param {Event} e the mouseup event
- * @param {String|DragDrop[]} id In POINT mode, the element
- * id this was dropped on. In INTERSECT mode, an array of dd items this
- * was dropped on.
- */
- onDragDrop: function(e, id) { /* override this */ },
-
- /**
- * Abstract method called when this item is dropped on an area with no
- * drop target
- * @method onInvalidDrop
- * @param {Event} e the mouseup event
- */
- onInvalidDrop: function(e) { /* override this */ },
-
- /**
- * Code that executes immediately before the endDrag event
- * @method b4EndDrag
- * @private
- */
- b4EndDrag: function(e) { },
-
- /**
- * Fired when we are done dragging the object
- * @method endDrag
- * @param {Event} e the mouseup event
- */
- endDrag: function(e) { /* override this */ },
-
- /**
- * Code executed immediately before the onMouseDown event
- * @method b4MouseDown
- * @param {Event} e the mousedown event
- * @private
- */
- b4MouseDown: function(e) { },
-
- /**
- * Event handler that fires when a drag/drop obj gets a mousedown
- * @method onMouseDown
- * @param {Event} e the mousedown event
- */
- onMouseDown: function(e) { /* override this */ },
-
- /**
- * Event handler that fires when a drag/drop obj gets a mouseup
- * @method onMouseUp
- * @param {Event} e the mouseup event
- */
- onMouseUp: function(e) { /* override this */ },
-
- /**
- * Override the onAvailable method to do what is needed after the initial
- * position was determined.
- * @method onAvailable
- */
- onAvailable: function () {
- },
-
- /**
- * Returns a reference to the linked element
- * @method getEl
- * @return {HTMLElement} the html element
- */
- getEl: function() {
- if (!this._domRef) {
- this._domRef = Dom.get(this.id);
- }
-
- return this._domRef;
- },
-
- /**
- * Returns a reference to the actual element to drag. By default this is
- * the same as the html element, but it can be assigned to another
- * element. An example of this can be found in YAHOO.util.DDProxy
- * @method getDragEl
- * @return {HTMLElement} the html element
- */
- getDragEl: function() {
- return Dom.get(this.dragElId);
- },
-
- /**
- * Sets up the DragDrop object. Must be called in the constructor of any
- * YAHOO.util.DragDrop subclass
- * @method init
- * @param id the id of the linked element
- * @param {String} sGroup the group of related items
- * @param {object} config configuration attributes
- */
- init: function(id, sGroup, config) {
- this.initTarget(id, sGroup, config);
- Event.on(this._domRef || this.id, "mousedown",
- this.handleMouseDown, this, true);
-
- // Event.on(this.id, "selectstart", Event.preventDefault);
- for (var i in this.events) {
- this.createEvent(i + 'Event');
- }
-
- },
-
- /**
- * Initializes Targeting functionality only... the object does not
- * get a mousedown handler.
- * @method initTarget
- * @param id the id of the linked element
- * @param {String} sGroup the group of related items
- * @param {object} config configuration attributes
- */
- initTarget: function(id, sGroup, config) {
-
- // configuration attributes
- this.config = config || {};
-
- this.events = {};
-
- // create a local reference to the drag and drop manager
- this.DDM = YAHOO.util.DDM;
-
- // initialize the groups object
- this.groups = {};
-
- // assume that we have an element reference instead of an id if the
- // parameter is not a string
- if (typeof id !== "string") {
- this._domRef = id;
- id = Dom.generateId(id);
- }
-
- // set the id
- this.id = id;
-
- // add to an interaction group
- this.addToGroup((sGroup) ? sGroup : "default");
-
- // We don't want to register this as the handle with the manager
- // so we just set the id rather than calling the setter.
- this.handleElId = id;
-
- Event.onAvailable(id, this.handleOnAvailable, this, true);
-
-
- // the linked element is the element that gets dragged by default
- this.setDragElId(id);
-
- // by default, clicked anchors will not start drag operations.
- // @TODO what else should be here? Probably form fields.
- this.invalidHandleTypes = { A: "A" };
- this.invalidHandleIds = {};
- this.invalidHandleClasses = [];
-
- this.applyConfig();
- },
-
- /**
- * Applies the configuration parameters that were passed into the constructor.
- * This is supposed to happen at each level through the inheritance chain. So
- * a DDProxy implentation will execute apply config on DDProxy, DD, and
- * DragDrop in order to get all of the parameters that are available in
- * each object.
- * @method applyConfig
- */
- applyConfig: function() {
- this.events = {
- mouseDown: true,
- b4MouseDown: true,
- mouseUp: true,
- b4StartDrag: true,
- startDrag: true,
- b4EndDrag: true,
- endDrag: true,
- drag: true,
- b4Drag: true,
- invalidDrop: true,
- b4DragOut: true,
- dragOut: true,
- dragEnter: true,
- b4DragOver: true,
- dragOver: true,
- b4DragDrop: true,
- dragDrop: true
- };
-
- if (this.config.events) {
- for (var i in this.config.events) {
- if (this.config.events[i] === false) {
- this.events[i] = false;
- }
- }
- }
-
-
- // configurable properties:
- // padding, isTarget, maintainOffset, primaryButtonOnly
- this.padding = this.config.padding || [0, 0, 0, 0];
- this.isTarget = (this.config.isTarget !== false);
- this.maintainOffset = (this.config.maintainOffset);
- this.primaryButtonOnly = (this.config.primaryButtonOnly !== false);
- this.dragOnly = ((this.config.dragOnly === true) ? true : false);
- this.useShim = ((this.config.useShim === true) ? true : false);
- },
-
- /**
- * Executed when the linked element is available
- * @method handleOnAvailable
- * @private
- */
- handleOnAvailable: function() {
- this.available = true;
- this.resetConstraints();
- this.onAvailable();
- },
-
- /**
- * Configures the padding for the target zone in px. Effectively expands
- * (or reduces) the virtual object size for targeting calculations.
- * Supports css-style shorthand; if only one parameter is passed, all sides
- * will have that padding, and if only two are passed, the top and bottom
- * will have the first param, the left and right the second.
- * @method setPadding
- * @param {int} iTop Top pad
- * @param {int} iRight Right pad
- * @param {int} iBot Bot pad
- * @param {int} iLeft Left pad
- */
- setPadding: function(iTop, iRight, iBot, iLeft) {
- // this.padding = [iLeft, iRight, iTop, iBot];
- if (!iRight && 0 !== iRight) {
- this.padding = [iTop, iTop, iTop, iTop];
- } else if (!iBot && 0 !== iBot) {
- this.padding = [iTop, iRight, iTop, iRight];
- } else {
- this.padding = [iTop, iRight, iBot, iLeft];
- }
- },
-
- /**
- * Stores the initial placement of the linked element.
- * @method setInitialPosition
- * @param {int} diffX the X offset, default 0
- * @param {int} diffY the Y offset, default 0
- * @private
- */
- setInitPosition: function(diffX, diffY) {
- var el = this.getEl();
-
- if (!this.DDM.verifyEl(el)) {
- if (el && el.style && (el.style.display == 'none')) {
- } else {
- }
- return;
- }
-
- var dx = diffX || 0;
- var dy = diffY || 0;
-
- var p = Dom.getXY( el );
-
- this.initPageX = p[0] - dx;
- this.initPageY = p[1] - dy;
-
- this.lastPageX = p[0];
- this.lastPageY = p[1];
-
-
-
- this.setStartPosition(p);
- },
-
- /**
- * Sets the start position of the element. This is set when the obj
- * is initialized, the reset when a drag is started.
- * @method setStartPosition
- * @param pos current position (from previous lookup)
- * @private
- */
- setStartPosition: function(pos) {
- var p = pos || Dom.getXY(this.getEl());
-
- this.deltaSetXY = null;
-
- this.startPageX = p[0];
- this.startPageY = p[1];
- },
-
- /**
- * Add this instance to a group of related drag/drop objects. All
- * instances belong to at least one group, and can belong to as many
- * groups as needed.
- * @method addToGroup
- * @param sGroup {string} the name of the group
- */
- addToGroup: function(sGroup) {
- this.groups[sGroup] = true;
- this.DDM.regDragDrop(this, sGroup);
- },
-
- /**
- * Remove's this instance from the supplied interaction group
- * @method removeFromGroup
- * @param {string} sGroup The group to drop
- */
- removeFromGroup: function(sGroup) {
- if (this.groups[sGroup]) {
- delete this.groups[sGroup];
- }
-
- this.DDM.removeDDFromGroup(this, sGroup);
- },
-
- /**
- * Allows you to specify that an element other than the linked element
- * will be moved with the cursor during a drag
- * @method setDragElId
- * @param id {string} the id of the element that will be used to initiate the drag
- */
- setDragElId: function(id) {
- this.dragElId = id;
- },
-
- /**
- * Allows you to specify a child of the linked element that should be
- * used to initiate the drag operation. An example of this would be if
- * you have a content div with text and links. Clicking anywhere in the
- * content area would normally start the drag operation. Use this method
- * to specify that an element inside of the content div is the element
- * that starts the drag operation.
- * @method setHandleElId
- * @param id {string} the id of the element that will be used to
- * initiate the drag.
- */
- setHandleElId: function(id) {
- if (typeof id !== "string") {
- id = Dom.generateId(id);
- }
- this.handleElId = id;
- this.DDM.regHandle(this.id, id);
- },
-
- /**
- * Allows you to set an element outside of the linked element as a drag
- * handle
- * @method setOuterHandleElId
- * @param id the id of the element that will be used to initiate the drag
- */
- setOuterHandleElId: function(id) {
- if (typeof id !== "string") {
- id = Dom.generateId(id);
- }
- Event.on(id, "mousedown",
- this.handleMouseDown, this, true);
- this.setHandleElId(id);
-
- this.hasOuterHandles = true;
- },
-
- /**
- * Remove all drag and drop hooks for this element
- * @method unreg
- */
- unreg: function() {
- Event.removeListener(this.id, "mousedown",
- this.handleMouseDown);
- this._domRef = null;
- this.DDM._remove(this);
- },
-
- /**
- * Returns true if this instance is locked, or the drag drop mgr is locked
- * (meaning that all drag/drop is disabled on the page.)
- * @method isLocked
- * @return {boolean} true if this obj or all drag/drop is locked, else
- * false
- */
- isLocked: function() {
- return (this.DDM.isLocked() || this.locked);
- },
-
- /**
- * Fired when this object is clicked
- * @method handleMouseDown
- * @param {Event} e
- * @param {YAHOO.util.DragDrop} oDD the clicked dd object (this dd obj)
- * @private
- */
- handleMouseDown: function(e, oDD) {
-
- var button = e.which || e.button;
-
- if (this.primaryButtonOnly && button > 1) {
- return;
- }
-
- if (this.isLocked()) {
- return;
- }
-
-
-
- // firing the mousedown events prior to calculating positions
- var b4Return = this.b4MouseDown(e),
- b4Return2 = true;
-
- if (this.events.b4MouseDown) {
- b4Return2 = this.fireEvent('b4MouseDownEvent', e);
- }
- var mDownReturn = this.onMouseDown(e),
- mDownReturn2 = true;
- if (this.events.mouseDown) {
- mDownReturn2 = this.fireEvent('mouseDownEvent', e);
- }
-
- if ((b4Return === false) || (mDownReturn === false) || (b4Return2 === false) || (mDownReturn2 === false)) {
- return;
- }
-
- this.DDM.refreshCache(this.groups);
- // var self = this;
- // setTimeout( function() { self.DDM.refreshCache(self.groups); }, 0);
-
- // Only process the event if we really clicked within the linked
- // element. The reason we make this check is that in the case that
- // another element was moved between the clicked element and the
- // cursor in the time between the mousedown and mouseup events. When
- // this happens, the element gets the next mousedown event
- // regardless of where on the screen it happened.
- var pt = new YAHOO.util.Point(Event.getPageX(e), Event.getPageY(e));
- if (!this.hasOuterHandles && !this.DDM.isOverTarget(pt, this) ) {
- } else {
- if (this.clickValidator(e)) {
-
-
- // set the initial element position
- this.setStartPosition();
-
- // start tracking mousemove distance and mousedown time to
- // determine when to start the actual drag
- this.DDM.handleMouseDown(e, this);
-
- // this mousedown is mine
- this.DDM.stopEvent(e);
- } else {
-
-
- }
- }
- },
-
- /**
- * @method clickValidator
- * @description Method validates that the clicked element
- * was indeed the handle or a valid child of the handle
- * @param {Event} e
- */
- clickValidator: function(e) {
- var target = YAHOO.util.Event.getTarget(e);
- return ( this.isValidHandleChild(target) &&
- (this.id == this.handleElId ||
- this.DDM.handleWasClicked(target, this.id)) );
- },
-
- /**
- * Finds the location the element should be placed if we want to move
- * it to where the mouse location less the click offset would place us.
- * @method getTargetCoord
- * @param {int} iPageX the X coordinate of the click
- * @param {int} iPageY the Y coordinate of the click
- * @return an object that contains the coordinates (Object.x and Object.y)
- * @private
- */
- getTargetCoord: function(iPageX, iPageY) {
-
-
- var x = iPageX - this.deltaX;
- var y = iPageY - this.deltaY;
-
- if (this.constrainX) {
- if (x < this.minX) { x = this.minX; }
- if (x > this.maxX) { x = this.maxX; }
- }
-
- if (this.constrainY) {
- if (y < this.minY) { y = this.minY; }
- if (y > this.maxY) { y = this.maxY; }
- }
-
- x = this.getTick(x, this.xTicks);
- y = this.getTick(y, this.yTicks);
-
-
- return {x:x, y:y};
- },
-
- /**
- * Allows you to specify a tag name that should not start a drag operation
- * when clicked. This is designed to facilitate embedding links within a
- * drag handle that do something other than start the drag.
- * @method addInvalidHandleType
- * @param {string} tagName the type of element to exclude
- */
- addInvalidHandleType: function(tagName) {
- var type = tagName.toUpperCase();
- this.invalidHandleTypes[type] = type;
- },
-
- /**
- * Lets you to specify an element id for a child of a drag handle
- * that should not initiate a drag
- * @method addInvalidHandleId
- * @param {string} id the element id of the element you wish to ignore
- */
- addInvalidHandleId: function(id) {
- if (typeof id !== "string") {
- id = Dom.generateId(id);
- }
- this.invalidHandleIds[id] = id;
- },
-
-
- /**
- * Lets you specify a css class of elements that will not initiate a drag
- * @method addInvalidHandleClass
- * @param {string} cssClass the class of the elements you wish to ignore
- */
- addInvalidHandleClass: function(cssClass) {
- this.invalidHandleClasses.push(cssClass);
- },
-
- /**
- * Unsets an excluded tag name set by addInvalidHandleType
- * @method removeInvalidHandleType
- * @param {string} tagName the type of element to unexclude
- */
- removeInvalidHandleType: function(tagName) {
- var type = tagName.toUpperCase();
- // this.invalidHandleTypes[type] = null;
- delete this.invalidHandleTypes[type];
- },
-
- /**
- * Unsets an invalid handle id
- * @method removeInvalidHandleId
- * @param {string} id the id of the element to re-enable
- */
- removeInvalidHandleId: function(id) {
- if (typeof id !== "string") {
- id = Dom.generateId(id);
- }
- delete this.invalidHandleIds[id];
- },
-
- /**
- * Unsets an invalid css class
- * @method removeInvalidHandleClass
- * @param {string} cssClass the class of the element(s) you wish to
- * re-enable
- */
- removeInvalidHandleClass: function(cssClass) {
- for (var i=0, len=this.invalidHandleClasses.length; i<len; ++i) {
- if (this.invalidHandleClasses[i] == cssClass) {
- delete this.invalidHandleClasses[i];
- }
- }
- },
-
- /**
- * Checks the tag exclusion list to see if this click should be ignored
- * @method isValidHandleChild
- * @param {HTMLElement} node the HTMLElement to evaluate
- * @return {boolean} true if this is a valid tag type, false if not
- */
- isValidHandleChild: function(node) {
-
- var valid = true;
- // var n = (node.nodeName == "#text") ? node.parentNode : node;
- var nodeName;
- try {
- nodeName = node.nodeName.toUpperCase();
- } catch(e) {
- nodeName = node.nodeName;
- }
- valid = valid && !this.invalidHandleTypes[nodeName];
- valid = valid && !this.invalidHandleIds[node.id];
-
- for (var i=0, len=this.invalidHandleClasses.length; valid && i<len; ++i) {
- valid = !Dom.hasClass(node, this.invalidHandleClasses[i]);
- }
-
-
- return valid;
-
- },
-
- /**
- * Create the array of horizontal tick marks if an interval was specified
- * in setXConstraint().
- * @method setXTicks
- * @private
- */
- setXTicks: function(iStartX, iTickSize) {
- this.xTicks = [];
- this.xTickSize = iTickSize;
-
- var tickMap = {};
-
- for (var i = this.initPageX; i >= this.minX; i = i - iTickSize) {
- if (!tickMap[i]) {
- this.xTicks[this.xTicks.length] = i;
- tickMap[i] = true;
- }
- }
-
- for (i = this.initPageX; i <= this.maxX; i = i + iTickSize) {
- if (!tickMap[i]) {
- this.xTicks[this.xTicks.length] = i;
- tickMap[i] = true;
- }
- }
-
- this.xTicks.sort(this.DDM.numericSort) ;
- },
-
- /**
- * Create the array of vertical tick marks if an interval was specified in
- * setYConstraint().
- * @method setYTicks
- * @private
- */
- setYTicks: function(iStartY, iTickSize) {
- this.yTicks = [];
- this.yTickSize = iTickSize;
-
- var tickMap = {};
-
- for (var i = this.initPageY; i >= this.minY; i = i - iTickSize) {
- if (!tickMap[i]) {
- this.yTicks[this.yTicks.length] = i;
- tickMap[i] = true;
- }
- }
-
- for (i = this.initPageY; i <= this.maxY; i = i + iTickSize) {
- if (!tickMap[i]) {
- this.yTicks[this.yTicks.length] = i;
- tickMap[i] = true;
- }
- }
-
- this.yTicks.sort(this.DDM.numericSort) ;
- },
-
- /**
- * By default, the element can be dragged any place on the screen. Use
- * this method to limit the horizontal travel of the element. Pass in
- * 0,0 for the parameters if you want to lock the drag to the y axis.
- * @method setXConstraint
- * @param {int} iLeft the number of pixels the element can move to the left
- * @param {int} iRight the number of pixels the element can move to the
- * right
- * @param {int} iTickSize optional parameter for specifying that the
- * element
- * should move iTickSize pixels at a time.
- */
- setXConstraint: function(iLeft, iRight, iTickSize) {
- this.leftConstraint = parseInt(iLeft, 10);
- this.rightConstraint = parseInt(iRight, 10);
-
- this.minX = this.initPageX - this.leftConstraint;
- this.maxX = this.initPageX + this.rightConstraint;
- if (iTickSize) { this.setXTicks(this.initPageX, iTickSize); }
-
- this.constrainX = true;
- },
-
- /**
- * Clears any constraints applied to this instance. Also clears ticks
- * since they can't exist independent of a constraint at this time.
- * @method clearConstraints
- */
- clearConstraints: function() {
- this.constrainX = false;
- this.constrainY = false;
- this.clearTicks();
- },
-
- /**
- * Clears any tick interval defined for this instance
- * @method clearTicks
- */
- clearTicks: function() {
- this.xTicks = null;
- this.yTicks = null;
- this.xTickSize = 0;
- this.yTickSize = 0;
- },
-
- /**
- * By default, the element can be dragged any place on the screen. Set
- * this to limit the vertical travel of the element. Pass in 0,0 for the
- * parameters if you want to lock the drag to the x axis.
- * @method setYConstraint
- * @param {int} iUp the number of pixels the element can move up
- * @param {int} iDown the number of pixels the element can move down
- * @param {int} iTickSize optional parameter for specifying that the
- * element should move iTickSize pixels at a time.
- */
- setYConstraint: function(iUp, iDown, iTickSize) {
- this.topConstraint = parseInt(iUp, 10);
- this.bottomConstraint = parseInt(iDown, 10);
-
- this.minY = this.initPageY - this.topConstraint;
- this.maxY = this.initPageY + this.bottomConstraint;
- if (iTickSize) { this.setYTicks(this.initPageY, iTickSize); }
-
- this.constrainY = true;
-
- },
-
- /**
- * resetConstraints must be called if you manually reposition a dd element.
- * @method resetConstraints
- */
- resetConstraints: function() {
-
-
- // Maintain offsets if necessary
- if (this.initPageX || this.initPageX === 0) {
- // figure out how much this thing has moved
- var dx = (this.maintainOffset) ? this.lastPageX - this.initPageX : 0;
- var dy = (this.maintainOffset) ? this.lastPageY - this.initPageY : 0;
-
- this.setInitPosition(dx, dy);
-
- // This is the first time we have detected the element's position
- } else {
- this.setInitPosition();
- }
-
- if (this.constrainX) {
- this.setXConstraint( this.leftConstraint,
- this.rightConstraint,
- this.xTickSize );
- }
-
- if (this.constrainY) {
- this.setYConstraint( this.topConstraint,
- this.bottomConstraint,
- this.yTickSize );
- }
- },
-
- /**
- * Normally the drag element is moved pixel by pixel, but we can specify
- * that it move a number of pixels at a time. This method resolves the
- * location when we have it set up like this.
- * @method getTick
- * @param {int} val where we want to place the object
- * @param {int[]} tickArray sorted array of valid points
- * @return {int} the closest tick
- * @private
- */
- getTick: function(val, tickArray) {
-
- if (!tickArray) {
- // If tick interval is not defined, it is effectively 1 pixel,
- // so we return the value passed to us.
- return val;
- } else if (tickArray[0] >= val) {
- // The value is lower than the first tick, so we return the first
- // tick.
- return tickArray[0];
- } else {
- for (var i=0, len=tickArray.length; i<len; ++i) {
- var next = i + 1;
- if (tickArray[next] && tickArray[next] >= val) {
- var diff1 = val - tickArray[i];
- var diff2 = tickArray[next] - val;
- return (diff2 > diff1) ? tickArray[i] : tickArray[next];
- }
- }
-
- // The value is larger than the last tick, so we return the last
- // tick.
- return tickArray[tickArray.length - 1];
- }
- },
-
- /**
- * toString method
- * @method toString
- * @return {string} string representation of the dd obj
- */
- toString: function() {
- return ("DragDrop " + this.id);
- }
-
-};
-YAHOO.augment(YAHOO.util.DragDrop, YAHOO.util.EventProvider);
-
-/**
-* @event mouseDownEvent
-* @description Provides access to the mousedown event. The mousedown does not always result in a drag operation.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event b4MouseDownEvent
-* @description Provides access to the mousedown event, before the mouseDownEvent gets fired. Returning false will cancel the drag.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event mouseUpEvent
-* @description Fired from inside DragDropMgr when the drag operation is finished.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event b4StartDragEvent
-* @description Fires before the startDragEvent, returning false will cancel the startDrag Event.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event startDragEvent
-* @description Occurs after a mouse down and the drag threshold has been met. The drag threshold default is either 3 pixels of mouse movement or 1 full second of holding the mousedown.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event b4EndDragEvent
-* @description Fires before the endDragEvent. Returning false will cancel.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event endDragEvent
-* @description Fires on the mouseup event after a drag has been initiated (startDrag fired).
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event dragEvent
-* @description Occurs every mousemove event while dragging.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragEvent
-* @description Fires before the dragEvent.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event invalidDropEvent
-* @description Fires when the dragged objects is dropped in a location that contains no drop targets.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragOutEvent
-* @description Fires before the dragOutEvent
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragOutEvent
-* @description Fires when a dragged object is no longer over an object that had the onDragEnter fire.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragEnterEvent
-* @description Occurs when the dragged object first interacts with another targettable drag and drop object.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragOverEvent
-* @description Fires before the dragOverEvent.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragOverEvent
-* @description Fires every mousemove event while over a drag and drop object.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragDropEvent
-* @description Fires before the dragDropEvent
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragDropEvent
-* @description Fires when the dragged objects is dropped on another.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-})();
-/**
- * A DragDrop implementation where the linked element follows the
- * mouse cursor during a drag.
- * @class DD
- * @extends YAHOO.util.DragDrop
- * @constructor
- * @param {String} id the id of the linked element
- * @param {String} sGroup the group of related DragDrop items
- * @param {object} config an object containing configurable attributes
- * Valid properties for DD:
- * scroll
- */
-YAHOO.util.DD = function(id, sGroup, config) {
- if (id) {
- this.init(id, sGroup, config);
- }
-};
-
-YAHOO.extend(YAHOO.util.DD, YAHOO.util.DragDrop, {
-
- /**
- * When set to true, the utility automatically tries to scroll the browser
- * window when a drag and drop element is dragged near the viewport boundary.
- * Defaults to true.
- * @property scroll
- * @type boolean
- */
- scroll: true,
-
- /**
- * Sets the pointer offset to the distance between the linked element's top
- * left corner and the location the element was clicked
- * @method autoOffset
- * @param {int} iPageX the X coordinate of the click
- * @param {int} iPageY the Y coordinate of the click
- */
- autoOffset: function(iPageX, iPageY) {
- var x = iPageX - this.startPageX;
- var y = iPageY - this.startPageY;
- this.setDelta(x, y);
- },
-
- /**
- * Sets the pointer offset. You can call this directly to force the
- * offset to be in a particular location (e.g., pass in 0,0 to set it
- * to the center of the object, as done in YAHOO.widget.Slider)
- * @method setDelta
- * @param {int} iDeltaX the distance from the left
- * @param {int} iDeltaY the distance from the top
- */
- setDelta: function(iDeltaX, iDeltaY) {
- this.deltaX = iDeltaX;
- this.deltaY = iDeltaY;
- },
-
- /**
- * Sets the drag element to the location of the mousedown or click event,
- * maintaining the cursor location relative to the location on the element
- * that was clicked. Override this if you want to place the element in a
- * location other than where the cursor is.
- * @method setDragElPos
- * @param {int} iPageX the X coordinate of the mousedown or drag event
- * @param {int} iPageY the Y coordinate of the mousedown or drag event
- */
- setDragElPos: function(iPageX, iPageY) {
- // the first time we do this, we are going to check to make sure
- // the element has css positioning
-
- var el = this.getDragEl();
- this.alignElWithMouse(el, iPageX, iPageY);
- },
-
- /**
- * Sets the element to the location of the mousedown or click event,
- * maintaining the cursor location relative to the location on the element
- * that was clicked. Override this if you want to place the element in a
- * location other than where the cursor is.
- * @method alignElWithMouse
- * @param {HTMLElement} el the element to move
- * @param {int} iPageX the X coordinate of the mousedown or drag event
- * @param {int} iPageY the Y coordinate of the mousedown or drag event
- */
- alignElWithMouse: function(el, iPageX, iPageY) {
- var oCoord = this.getTargetCoord(iPageX, iPageY);
-
- if (!this.deltaSetXY) {
- var aCoord = [oCoord.x, oCoord.y];
- YAHOO.util.Dom.setXY(el, aCoord);
-
- var newLeft = parseInt( YAHOO.util.Dom.getStyle(el, "left"), 10 );
- var newTop = parseInt( YAHOO.util.Dom.getStyle(el, "top" ), 10 );
-
- this.deltaSetXY = [ newLeft - oCoord.x, newTop - oCoord.y ];
- } else {
- YAHOO.util.Dom.setStyle(el, "left", (oCoord.x + this.deltaSetXY[0]) + "px");
- YAHOO.util.Dom.setStyle(el, "top", (oCoord.y + this.deltaSetXY[1]) + "px");
- }
-
- this.cachePosition(oCoord.x, oCoord.y);
- var self = this;
- setTimeout(function() {
- self.autoScroll.call(self, oCoord.x, oCoord.y, el.offsetHeight, el.offsetWidth);
- }, 0);
- },
-
- /**
- * Saves the most recent position so that we can reset the constraints and
- * tick marks on-demand. We need to know this so that we can calculate the
- * number of pixels the element is offset from its original position.
- * @method cachePosition
- * @param iPageX the current x position (optional, this just makes it so we
- * don't have to look it up again)
- * @param iPageY the current y position (optional, this just makes it so we
- * don't have to look it up again)
- */
- cachePosition: function(iPageX, iPageY) {
- if (iPageX) {
- this.lastPageX = iPageX;
- this.lastPageY = iPageY;
- } else {
- var aCoord = YAHOO.util.Dom.getXY(this.getEl());
- this.lastPageX = aCoord[0];
- this.lastPageY = aCoord[1];
- }
- },
-
- /**
- * Auto-scroll the window if the dragged object has been moved beyond the
- * visible window boundary.
- * @method autoScroll
- * @param {int} x the drag element's x position
- * @param {int} y the drag element's y position
- * @param {int} h the height of the drag element
- * @param {int} w the width of the drag element
- * @private
- */
- autoScroll: function(x, y, h, w) {
-
- if (this.scroll) {
- // The client height
- var clientH = this.DDM.getClientHeight();
-
- // The client width
- var clientW = this.DDM.getClientWidth();
-
- // The amt scrolled down
- var st = this.DDM.getScrollTop();
-
- // The amt scrolled right
- var sl = this.DDM.getScrollLeft();
-
- // Location of the bottom of the element
- var bot = h + y;
-
- // Location of the right of the element
- var right = w + x;
-
- // The distance from the cursor to the bottom of the visible area,
- // adjusted so that we don't scroll if the cursor is beyond the
- // element drag constraints
- var toBot = (clientH + st - y - this.deltaY);
-
- // The distance from the cursor to the right of the visible area
- var toRight = (clientW + sl - x - this.deltaX);
-
-
- // How close to the edge the cursor must be before we scroll
- // var thresh = (document.all) ? 100 : 40;
- var thresh = 40;
-
- // How many pixels to scroll per autoscroll op. This helps to reduce
- // clunky scrolling. IE is more sensitive about this ... it needs this
- // value to be higher.
- var scrAmt = (document.all) ? 80 : 30;
-
- // Scroll down if we are near the bottom of the visible page and the
- // obj extends below the crease
- if ( bot > clientH && toBot < thresh ) {
- window.scrollTo(sl, st + scrAmt);
- }
-
- // Scroll up if the window is scrolled down and the top of the object
- // goes above the top border
- if ( y < st && st > 0 && y - st < thresh ) {
- window.scrollTo(sl, st - scrAmt);
- }
-
- // Scroll right if the obj is beyond the right border and the cursor is
- // near the border.
- if ( right > clientW && toRight < thresh ) {
- window.scrollTo(sl + scrAmt, st);
- }
-
- // Scroll left if the window has been scrolled to the right and the obj
- // extends past the left border
- if ( x < sl && sl > 0 && x - sl < thresh ) {
- window.scrollTo(sl - scrAmt, st);
- }
- }
- },
-
- /*
- * Sets up config options specific to this class. Overrides
- * YAHOO.util.DragDrop, but all versions of this method through the
- * inheritance chain are called
- */
- applyConfig: function() {
- YAHOO.util.DD.superclass.applyConfig.call(this);
- this.scroll = (this.config.scroll !== false);
- },
-
- /*
- * Event that fires prior to the onMouseDown event. Overrides
- * YAHOO.util.DragDrop.
- */
- b4MouseDown: function(e) {
- this.setStartPosition();
- // this.resetConstraints();
- this.autoOffset(YAHOO.util.Event.getPageX(e),
- YAHOO.util.Event.getPageY(e));
- },
-
- /*
- * Event that fires prior to the onDrag event. Overrides
- * YAHOO.util.DragDrop.
- */
- b4Drag: function(e) {
- this.setDragElPos(YAHOO.util.Event.getPageX(e),
- YAHOO.util.Event.getPageY(e));
- },
-
- toString: function() {
- return ("DD " + this.id);
- }
-
- //////////////////////////////////////////////////////////////////////////
- // Debugging ygDragDrop events that can be overridden
- //////////////////////////////////////////////////////////////////////////
- /*
- startDrag: function(x, y) {
- },
-
- onDrag: function(e) {
- },
-
- onDragEnter: function(e, id) {
- },
-
- onDragOver: function(e, id) {
- },
-
- onDragOut: function(e, id) {
- },
-
- onDragDrop: function(e, id) {
- },
-
- endDrag: function(e) {
- }
-
- */
-
-/**
-* @event mouseDownEvent
-* @description Provides access to the mousedown event. The mousedown does not always result in a drag operation.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event b4MouseDownEvent
-* @description Provides access to the mousedown event, before the mouseDownEvent gets fired. Returning false will cancel the drag.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event mouseUpEvent
-* @description Fired from inside DragDropMgr when the drag operation is finished.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event b4StartDragEvent
-* @description Fires before the startDragEvent, returning false will cancel the startDrag Event.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event startDragEvent
-* @description Occurs after a mouse down and the drag threshold has been met. The drag threshold default is either 3 pixels of mouse movement or 1 full second of holding the mousedown.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event b4EndDragEvent
-* @description Fires before the endDragEvent. Returning false will cancel.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event endDragEvent
-* @description Fires on the mouseup event after a drag has been initiated (startDrag fired).
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event dragEvent
-* @description Occurs every mousemove event while dragging.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragEvent
-* @description Fires before the dragEvent.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event invalidDropEvent
-* @description Fires when the dragged objects is dropped in a location that contains no drop targets.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragOutEvent
-* @description Fires before the dragOutEvent
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragOutEvent
-* @description Fires when a dragged object is no longer over an object that had the onDragEnter fire.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragEnterEvent
-* @description Occurs when the dragged object first interacts with another targettable drag and drop object.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragOverEvent
-* @description Fires before the dragOverEvent.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragOverEvent
-* @description Fires every mousemove event while over a drag and drop object.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragDropEvent
-* @description Fires before the dragDropEvent
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragDropEvent
-* @description Fires when the dragged objects is dropped on another.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-});
-/**
- * A DragDrop implementation that inserts an empty, bordered div into
- * the document that follows the cursor during drag operations. At the time of
- * the click, the frame div is resized to the dimensions of the linked html
- * element, and moved to the exact location of the linked element.
- *
- * References to the "frame" element refer to the single proxy element that
- * was created to be dragged in place of all DDProxy elements on the
- * page.
- *
- * @class DDProxy
- * @extends YAHOO.util.DD
- * @constructor
- * @param {String} id the id of the linked html element
- * @param {String} sGroup the group of related DragDrop objects
- * @param {object} config an object containing configurable attributes
- * Valid properties for DDProxy in addition to those in DragDrop:
- * resizeFrame, centerFrame, dragElId
- */
-YAHOO.util.DDProxy = function(id, sGroup, config) {
- if (id) {
- this.init(id, sGroup, config);
- this.initFrame();
- }
-};
-
-/**
- * The default drag frame div id
- * @property YAHOO.util.DDProxy.dragElId
- * @type String
- * @static
- */
-YAHOO.util.DDProxy.dragElId = "ygddfdiv";
-
-YAHOO.extend(YAHOO.util.DDProxy, YAHOO.util.DD, {
-
- /**
- * By default we resize the drag frame to be the same size as the element
- * we want to drag (this is to get the frame effect). We can turn it off
- * if we want a different behavior.
- * @property resizeFrame
- * @type boolean
- */
- resizeFrame: true,
-
- /**
- * By default the frame is positioned exactly where the drag element is, so
- * we use the cursor offset provided by YAHOO.util.DD. Another option that works only if
- * you do not have constraints on the obj is to have the drag frame centered
- * around the cursor. Set centerFrame to true for this effect.
- * @property centerFrame
- * @type boolean
- */
- centerFrame: false,
-
- /**
- * Creates the proxy element if it does not yet exist
- * @method createFrame
- */
- createFrame: function() {
- var self=this, body=document.body;
-
- if (!body || !body.firstChild) {
- setTimeout( function() { self.createFrame(); }, 50 );
- return;
- }
-
- var div=this.getDragEl(), Dom=YAHOO.util.Dom;
-
- if (!div) {
- div = document.createElement("div");
- div.id = this.dragElId;
- var s = div.style;
-
- s.position = "absolute";
- s.visibility = "hidden";
- s.cursor = "move";
- s.border = "2px solid #aaa";
- s.zIndex = 999;
- s.height = "25px";
- s.width = "25px";
-
- var _data = document.createElement('div');
- Dom.setStyle(_data, 'height', '100%');
- Dom.setStyle(_data, 'width', '100%');
- /**
- * If the proxy element has no background-color, then it is considered to the "transparent" by Internet Explorer.
- * Since it is "transparent" then the events pass through it to the iframe below.
- * So creating a "fake" div inside the proxy element and giving it a background-color, then setting it to an
- * opacity of 0, it appears to not be there, however IE still thinks that it is so the events never pass through.
- */
- Dom.setStyle(_data, 'background-color', '#ccc');
- Dom.setStyle(_data, 'opacity', '0');
- div.appendChild(_data);
-
- // appendChild can blow up IE if invoked prior to the window load event
- // while rendering a table. It is possible there are other scenarios
- // that would cause this to happen as well.
- body.insertBefore(div, body.firstChild);
- }
- },
-
- /**
- * Initialization for the drag frame element. Must be called in the
- * constructor of all subclasses
- * @method initFrame
- */
- initFrame: function() {
- this.createFrame();
- },
-
- applyConfig: function() {
- YAHOO.util.DDProxy.superclass.applyConfig.call(this);
-
- this.resizeFrame = (this.config.resizeFrame !== false);
- this.centerFrame = (this.config.centerFrame);
- this.setDragElId(this.config.dragElId || YAHOO.util.DDProxy.dragElId);
- },
-
- /**
- * Resizes the drag frame to the dimensions of the clicked object, positions
- * it over the object, and finally displays it
- * @method showFrame
- * @param {int} iPageX X click position
- * @param {int} iPageY Y click position
- * @private
- */
- showFrame: function(iPageX, iPageY) {
- var el = this.getEl();
- var dragEl = this.getDragEl();
- var s = dragEl.style;
-
- this._resizeProxy();
-
- if (this.centerFrame) {
- this.setDelta( Math.round(parseInt(s.width, 10)/2),
- Math.round(parseInt(s.height, 10)/2) );
- }
-
- this.setDragElPos(iPageX, iPageY);
-
- YAHOO.util.Dom.setStyle(dragEl, "visibility", "visible");
- },
-
- /**
- * The proxy is automatically resized to the dimensions of the linked
- * element when a drag is initiated, unless resizeFrame is set to false
- * @method _resizeProxy
- * @private
- */
- _resizeProxy: function() {
- if (this.resizeFrame) {
- var DOM = YAHOO.util.Dom;
- var el = this.getEl();
- var dragEl = this.getDragEl();
-
- var bt = parseInt( DOM.getStyle(dragEl, "borderTopWidth" ), 10);
- var br = parseInt( DOM.getStyle(dragEl, "borderRightWidth" ), 10);
- var bb = parseInt( DOM.getStyle(dragEl, "borderBottomWidth" ), 10);
- var bl = parseInt( DOM.getStyle(dragEl, "borderLeftWidth" ), 10);
-
- if (isNaN(bt)) { bt = 0; }
- if (isNaN(br)) { br = 0; }
- if (isNaN(bb)) { bb = 0; }
- if (isNaN(bl)) { bl = 0; }
-
-
- var newWidth = Math.max(0, el.offsetWidth - br - bl);
- var newHeight = Math.max(0, el.offsetHeight - bt - bb);
-
-
- DOM.setStyle( dragEl, "width", newWidth + "px" );
- DOM.setStyle( dragEl, "height", newHeight + "px" );
- }
- },
-
- // overrides YAHOO.util.DragDrop
- b4MouseDown: function(e) {
- this.setStartPosition();
- var x = YAHOO.util.Event.getPageX(e);
- var y = YAHOO.util.Event.getPageY(e);
- this.autoOffset(x, y);
-
- // This causes the autoscroll code to kick off, which means autoscroll can
- // happen prior to the check for a valid drag handle.
- // this.setDragElPos(x, y);
- },
-
- // overrides YAHOO.util.DragDrop
- b4StartDrag: function(x, y) {
- // show the drag frame
- this.showFrame(x, y);
- },
-
- // overrides YAHOO.util.DragDrop
- b4EndDrag: function(e) {
- YAHOO.util.Dom.setStyle(this.getDragEl(), "visibility", "hidden");
- },
-
- // overrides YAHOO.util.DragDrop
- // By default we try to move the element to the last location of the frame.
- // This is so that the default behavior mirrors that of YAHOO.util.DD.
- endDrag: function(e) {
- var DOM = YAHOO.util.Dom;
- var lel = this.getEl();
- var del = this.getDragEl();
-
- // Show the drag frame briefly so we can get its position
- // del.style.visibility = "";
- DOM.setStyle(del, "visibility", "");
-
- // Hide the linked element before the move to get around a Safari
- // rendering bug.
- //lel.style.visibility = "hidden";
- DOM.setStyle(lel, "visibility", "hidden");
- YAHOO.util.DDM.moveToEl(lel, del);
- //del.style.visibility = "hidden";
- DOM.setStyle(del, "visibility", "hidden");
- //lel.style.visibility = "";
- DOM.setStyle(lel, "visibility", "");
- },
-
- toString: function() {
- return ("DDProxy " + this.id);
- }
-/**
-* @event mouseDownEvent
-* @description Provides access to the mousedown event. The mousedown does not always result in a drag operation.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event b4MouseDownEvent
-* @description Provides access to the mousedown event, before the mouseDownEvent gets fired. Returning false will cancel the drag.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event mouseUpEvent
-* @description Fired from inside DragDropMgr when the drag operation is finished.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event b4StartDragEvent
-* @description Fires before the startDragEvent, returning false will cancel the startDrag Event.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event startDragEvent
-* @description Occurs after a mouse down and the drag threshold has been met. The drag threshold default is either 3 pixels of mouse movement or 1 full second of holding the mousedown.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event b4EndDragEvent
-* @description Fires before the endDragEvent. Returning false will cancel.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event endDragEvent
-* @description Fires on the mouseup event after a drag has been initiated (startDrag fired).
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-/**
-* @event dragEvent
-* @description Occurs every mousemove event while dragging.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragEvent
-* @description Fires before the dragEvent.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event invalidDropEvent
-* @description Fires when the dragged objects is dropped in a location that contains no drop targets.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragOutEvent
-* @description Fires before the dragOutEvent
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragOutEvent
-* @description Fires when a dragged object is no longer over an object that had the onDragEnter fire.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragEnterEvent
-* @description Occurs when the dragged object first interacts with another targettable drag and drop object.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragOverEvent
-* @description Fires before the dragOverEvent.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragOverEvent
-* @description Fires every mousemove event while over a drag and drop object.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event b4DragDropEvent
-* @description Fires before the dragDropEvent
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-/**
-* @event dragDropEvent
-* @description Fires when the dragged objects is dropped on another.
-* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
-*/
-
-});
-/**
- * A DragDrop implementation that does not move, but can be a drop
- * target. You would get the same result by simply omitting implementation
- * for the event callbacks, but this way we reduce the processing cost of the
- * event listener and the callbacks.
- * @class DDTarget
- * @extends YAHOO.util.DragDrop
- * @constructor
- * @param {String} id the id of the element that is a drop target
- * @param {String} sGroup the group of related DragDrop objects
- * @param {object} config an object containing configurable attributes
- * Valid properties for DDTarget in addition to those in
- * DragDrop:
- * none
- */
-YAHOO.util.DDTarget = function(id, sGroup, config) {
- if (id) {
- this.initTarget(id, sGroup, config);
- }
-};
-
-// YAHOO.util.DDTarget.prototype = new YAHOO.util.DragDrop();
-YAHOO.extend(YAHOO.util.DDTarget, YAHOO.util.DragDrop, {
- toString: function() {
- return ("DDTarget " + this.id);
- }
-});
-YAHOO.register("dragdrop", YAHOO.util.DragDropMgr, {version: "2.7.0", build: "1799"});
ToastFreeware / philipp / winterrodeln / wradmin.git / blobdiff