X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/0494b8d9b9bb03ab6c22b34dae81261e3cd7e3e6..7a654f8d43fdb43d78b63d90528bed6e86b608cc:/src/dd/DragDrop.js?ds=inline diff --git a/src/dd/DragDrop.js b/src/dd/DragDrop.js new file mode 100644 index 00000000..2f1f296d --- /dev/null +++ b/src/dd/DragDrop.js @@ -0,0 +1,1171 @@ +/* + * This is a derivative of the similarly named class in the YUI Library. + * The original license: + * Copyright (c) 2006, Yahoo! Inc. All rights reserved. + * Code licensed under the BSD License: + * http://developer.yahoo.net/yui/license.txt + */ + + +/** + * @class Ext.dd.DragDrop + * 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 and onDragOut. + * Up to three html elements can be associated with a DragDrop instance: + *
+ * dd = new Ext.dd.DragDrop("div1", "group1"); + *+ * 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... + *
+ * dd.onDragDrop = function(e, id) { + * alert("dd was dropped on " + id); + * } + *+ * @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 + */ + +Ext.define('Ext.dd.DragDrop', { + requires: ['Ext.dd.DragDropManager'], + constructor: function(id, sGroup, config) { + if(id) { + this.init(id, sGroup, config); + } + }, + + /** + * Set to false to enable a DragDrop object to fire drag events while dragging + * over its own Element. Defaults to true - DragDrop objects do not by default + * fire drag events to themselves. + * @property ignoreSelf + * @type Boolean + */ + + /** + * 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: + * Ext.dd.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 object who's property names identify HTML tags to be considered invalid as drag handles. + * A non-null property value identifies the tag as invalid. Defaults to the + * following value which prevents drag operations from being initiated by <a> elements:
+{
+ A: "A"
+}
+ * @property invalidHandleTypes
+ * @type Object
+ */
+ invalidHandleTypes: null,
+
+ /**
+ * An object who's property names identify the IDs of elements to be considered invalid as drag handles.
+ * A non-null property value identifies the ID as invalid. For example, to prevent
+ * dragging from being initiated on element ID "foo", use:
+{
+ foo: true
+}
+ * @property invalidHandleIds
+ * @type Object
+ */
+ invalidHandleIds: null,
+
+ /**
+ * An Array of CSS class names for elements to be considered in valid as drag handles.
+ * @property invalidHandleClasses
+ * @type Array
+ */
+ 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 object An object in the format {'group1':true, 'group2':true}
+ */
+ 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;
+ },
+
+ /**
+ * When set to true, other DD objects in cooperating DDGroups do not receive
+ * notification events when this DD object is dragged over them. Defaults to false.
+ * @property moveOnly
+ * @type boolean
+ */
+ moveOnly: false,
+
+ /**
+ * 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[] An array containing the 4 padding values: [top, right, bottom, left]
+ */
+ padding: null,
+
+ /**
+ * 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
+ * @private
+ */
+ minY: 0,
+
+ /**
+ * The down constraint
+ * @property maxY
+ * @type int
+ * @private
+ */
+ maxY: 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 available 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,
+
+ /**
+ * 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 () {
+ },
+
+ /**
+ * Provides default constraint padding to "constrainTo" elements (defaults to {left: 0, right:0, top:0, bottom:0}).
+ * @type Object
+ */
+ defaultPadding: {
+ left: 0,
+ right: 0,
+ top: 0,
+ bottom: 0
+ },
+
+ /**
+ * Initializes the drag drop object's constraints to restrict movement to a certain element.
+ *
+ * Usage:
+
+ var dd = new Ext.dd.DDProxy("dragDiv1", "proxytest",
+ { dragElId: "existingProxyDiv" });
+ dd.startDrag = function(){
+ this.constrainTo("parent-id");
+ };
+
+ * Or you can initalize it using the {@link Ext.core.Element} object:
+
+ Ext.get("dragDiv1").initDDProxy("proxytest", {dragElId: "existingProxyDiv"}, {
+ startDrag : function(){
+ this.constrainTo("parent-id");
+ }
+ });
+
+ * @param {Mixed} constrainTo The element to constrain to.
+ * @param {Object/Number} pad (optional) Pad provides a way to specify "padding" of the constraints,
+ * and can be either a number for symmetrical padding (4 would be equal to {left:4, right:4, top:4, bottom:4}) or
+ * an object containing the sides to pad. For example: {right:10, bottom:10}
+ * @param {Boolean} inContent (optional) Constrain the draggable in the content box of the element (inside padding and borders)
+ */
+ constrainTo : function(constrainTo, pad, inContent){
+ if(Ext.isNumber(pad)){
+ pad = {left: pad, right:pad, top:pad, bottom:pad};
+ }
+ pad = pad || this.defaultPadding;
+ var b = Ext.get(this.getEl()).getBox(),
+ ce = Ext.get(constrainTo),
+ s = ce.getScroll(),
+ c,
+ cd = ce.dom;
+ if(cd == document.body){
+ c = { x: s.left, y: s.top, width: Ext.core.Element.getViewWidth(), height: Ext.core.Element.getViewHeight()};
+ }else{
+ var xy = ce.getXY();
+ c = {x : xy[0], y: xy[1], width: cd.clientWidth, height: cd.clientHeight};
+ }
+
+
+ var topSpace = b.y - c.y,
+ leftSpace = b.x - c.x;
+
+ this.resetConstraints();
+ this.setXConstraint(leftSpace - (pad.left||0), // left
+ c.width - leftSpace - b.width - (pad.right||0), //right
+ this.xTickSize
+ );
+ this.setYConstraint(topSpace - (pad.top||0), //top
+ c.height - topSpace - b.height - (pad.bottom||0), //bottom
+ this.yTickSize
+ );
+ },
+
+ /**
+ * Returns a reference to the linked element
+ * @method getEl
+ * @return {HTMLElement} the html element
+ */
+ getEl: function() {
+ if (!this._domRef) {
+ this._domRef = Ext.getDom(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 Ext.dd.DDProxy
+ * @method getDragEl
+ * @return {HTMLElement} the html element
+ */
+ getDragEl: function() {
+ return Ext.getDom(this.dragElId);
+ },
+
+ /**
+ * Sets up the DragDrop object. Must be called in the constructor of any
+ * Ext.dd.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);
+ Ext.EventManager.on(this.id, "mousedown", this.handleMouseDown, this);
+ // Ext.EventManager.on(this.id, "selectstart", Event.preventDefault);
+ },
+
+ /**
+ * 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 || {};
+
+ // create a local reference to the drag and drop manager
+ this.DDMInstance = Ext.dd.DragDropManager;
+ // initialize the groups array
+ this.groups = {};
+
+ // assume that we have an element reference instead of an id if the
+ // parameter is not a string
+ if (typeof id !== "string") {
+ id = Ext.id(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;
+
+ // the linked element is the element that gets dragged by default
+ this.setDragElId(id);
+
+ // by default, clicked anchors will not start drag operations.
+ this.invalidHandleTypes = { A: "A" };
+ this.invalidHandleIds = {};
+ this.invalidHandleClasses = [];
+
+ this.applyConfig();
+
+ this.handleOnAvailable();
+ },
+
+ /**
+ * 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() {
+
+ // 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);
+
+ },
+
+ /**
+ * 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 setInitPosition
+ * @param {int} diffX the X offset, default 0
+ * @param {int} diffY the Y offset, default 0
+ */
+ setInitPosition: function(diffX, diffY) {
+ var el = this.getEl();
+
+ if (!this.DDMInstance.verifyEl(el)) {
+ return;
+ }
+
+ var dx = diffX || 0;
+ var dy = diffY || 0;
+
+ var p = Ext.core.Element.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 || Ext.core.Element.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.DDMInstance.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.DDMInstance.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 = Ext.id(id);
+ }
+ this.handleElId = id;
+ this.DDMInstance.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 = Ext.id(id);
+ }
+ Ext.EventManager.on(id, "mousedown", this.handleMouseDown, this);
+ this.setHandleElId(id);
+
+ this.hasOuterHandles = true;
+ },
+
+ /**
+ * Remove all drag and drop hooks for this element
+ * @method unreg
+ */
+ unreg: function() {
+ Ext.EventManager.un(this.id, "mousedown", this.handleMouseDown, this);
+ this._domRef = null;
+ this.DDMInstance._remove(this);
+ },
+
+ destroy : function(){
+ this.unreg();
+ },
+
+ /**
+ * 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.DDMInstance.isLocked() || this.locked);
+ },
+
+ /**
+ * Fired when this object is clicked
+ * @method handleMouseDown
+ * @param {Event} e
+ * @param {Ext.dd.DragDrop} oDD the clicked dd object (this dd obj)
+ * @private
+ */
+ handleMouseDown: function(e, oDD){
+ if (this.primaryButtonOnly && e.button != 0) {
+ return;
+ }
+
+ if (this.isLocked()) {
+ return;
+ }
+
+ this.DDMInstance.refreshCache(this.groups);
+
+ var pt = e.getPoint();
+ if (!this.hasOuterHandles && !this.DDMInstance.isOverTarget(pt, this) ) {
+ } else {
+ if (this.clickValidator(e)) {
+ // set the initial element position
+ this.setStartPosition();
+ this.b4MouseDown(e);
+ this.onMouseDown(e);
+
+ this.DDMInstance.handleMouseDown(e, this);
+
+ this.DDMInstance.stopEvent(e);
+ } else {
+
+
+ }
+ }
+ },
+
+ clickValidator: function(e) {
+ var target = e.getTarget();
+ return ( this.isValidHandleChild(target) &&
+ (this.id == this.handleElId ||
+ this.DDMInstance.handleWasClicked(target, this.id)) );
+ },
+
+ /**
+ * 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 = Ext.id(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 = Ext.id(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