dd/js/ddm-drop.js

	ddm-drop.js revision c8b61a25e72a46a8725ead6f5bbae7d00b502a33
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav GlassYUI.add('dd-ddm-drop', function(Y) {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass    /**
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass     * Extends the dd-ddm Class to add support for the placement of Drop Target shims inside the viewport shim. It also handles all Drop Target related events and interactions.
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass     * @module dd
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass     * @submodule dd-ddm-drop
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass     * @for DDM
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass     */
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass
daeb6d531149c45a2ceb543ae2cf1e56e5235bbeDav Glass    //TODO CSS class name for the bestMatch..
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass    Y.mix(Y.DD.DDM, {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        /**
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @private
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @property _noShim
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @description This flag turns off the use of the mouseover/mouseout shim. It should not be used unless you know what you are doing.
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @type {Boolean}
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        */
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        _noShim: false,
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        /**
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @private
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @property _activeShims
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @description Placeholder for all active shims on the page
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @type {Array}
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        */
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        _activeShims: [],
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        /**
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @private
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @method _hasActiveShim
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @description This method checks the _activeShims Object to see if there is a shim active.
f69da96c272d2efe7f43da5150c13c0fe6899646Dav Glass        * @return {Boolean}
56fa0b5ce00608c58c7c82cc5341c5fbf8898719Dav Glass        */
56fa0b5ce00608c58c7c82cc5341c5fbf8898719Dav Glass        _hasActiveShim: function() {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass            if (this._noShim) {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass                return true;
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass            }
66b69a264b246a17ec8ac7ff7e8ad4444cb181afDav Glass            return this._activeShims.length;
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass        },
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        /**
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @private
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @method _addActiveShim
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @description Adds a Drop Target to the list of active shims
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @param {Object} d The Drop instance to add to the list.
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        */
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        _addActiveShim: function(d) {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass            this._activeShims[this._activeShims.length] = d;
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        },
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        /**
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        * @private
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        * @method _removeActiveShim
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        * @description Removes a Drop Target to the list of active shims
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        * @param {Object} d The Drop instance to remove from the list.
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        */
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        _removeActiveShim: function(d) {
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass            var s = [];
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass            Y.each(this._activeShims, function(v, k) {
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass                if (v._yuid !== d._yuid) {
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass                    s[s.length] = v;
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass                }
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass            });
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass            this._activeShims = s;
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass        },
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass        /**
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass        * @method syncActiveShims
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass        * @description This method will sync the position of the shims on the Drop Targets that are currently active.
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass        * @param {Boolean} force Resize/sync all Targets.
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass        */
f8b3e367f0b400ff8b4feeb35c56d9387a31f9e0Dav Glass        syncActiveShims: function(force) {
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass            Y.later(0, this, function(force) {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass                var drops = ((force) ? this.targets : this._lookup());
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass                Y.each(drops, function(v, k) {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass                    v.sizeShim.call(v);
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass                }, this);
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass            }, force);
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass        },
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        /**
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass        * @private
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass        * @property mode
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass        * @description The mode that the drag operations will run in 0 for Point, 1 for Intersect, 2 for Strict
edefd42ddde54932d14d9150369570db47822ab5Dav Glass        * @type Number
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass        */
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass        mode: 0,
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass        /**
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass        * @private
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass        * @property POINT
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass        * @description In point mode, a Drop is targeted by the cursor being over the Target
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass        * @type Number
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        */
edefd42ddde54932d14d9150369570db47822ab5Dav Glass        POINT: 0,
edefd42ddde54932d14d9150369570db47822ab5Dav Glass        /**
edefd42ddde54932d14d9150369570db47822ab5Dav Glass        * @private
9002d9b85f99bb503c702f12a20f829f732d22f8Dav Glass        * @property INTERSECT
9002d9b85f99bb503c702f12a20f829f732d22f8Dav Glass        * @description In intersect mode, a Drop is targeted by "part" of the drag node being over the Target
9002d9b85f99bb503c702f12a20f829f732d22f8Dav Glass        * @type Number
9002d9b85f99bb503c702f12a20f829f732d22f8Dav Glass        */
9002d9b85f99bb503c702f12a20f829f732d22f8Dav Glass        INTERSECT: 1,
9002d9b85f99bb503c702f12a20f829f732d22f8Dav Glass        /**
9002d9b85f99bb503c702f12a20f829f732d22f8Dav Glass        * @private
9002d9b85f99bb503c702f12a20f829f732d22f8Dav Glass        * @property STRICT
9002d9b85f99bb503c702f12a20f829f732d22f8Dav Glass        * @description In strict mode, a Drop is targeted by the "entire" drag node being over the Target
a2621d519886de7d60c30c5a0850f5c17fd2fb36Dav Glass        * @type Number
a2621d519886de7d60c30c5a0850f5c17fd2fb36Dav Glass        */
a2621d519886de7d60c30c5a0850f5c17fd2fb36Dav Glass        STRICT: 2,
24e95e1c11b518e1aaaa7f04882febe32de00b5eDav Glass        /**
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass        * @property useHash
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @description Should we only check targets that are in the viewport on drags (for performance), default: true
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @type {Boolean}
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        */
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        useHash: true,
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        /**
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @property activeDrop
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @description A reference to the active Drop Target
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @type {Object}
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        */
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        activeDrop: null,
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        /**
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @property validDrops
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @description An array of the valid Drop Targets for this interaction.
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @type {Array}
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        */
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        //TODO Change array/object literals to be in sync..
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        validDrops: [],
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        /**
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @property otherDrops
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @description An object literal of Other Drop Targets that we encountered during this interaction (in the case of overlapping Drop Targets)
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @type {Object}
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        */
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        otherDrops: {},
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        /**
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @property targets
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @description All of the Targets
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @type {Array}
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        */
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        targets: [],
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        /**
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @private
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @method _addValid
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass        * @description Add a Drop Target to the list of Valid Targets. This list get's regenerated on each new drag operation.
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @param {Object} drop
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @return {Self}
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @chainable
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        */
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        _addValid: function(drop) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            this.validDrops[this.validDrops.length] = drop;
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass            return this;
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass        },
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass        /**
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @private
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @method _removeValid
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @description Removes a Drop Target from the list of Valid Targets. This list get's regenerated on each new drag operation.
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @param {Object} drop
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @return {Self}
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @chainable
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        */
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        _removeValid: function(drop) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            var drops = [];
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            Y.each(this.validDrops, function(v, k) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                if (v !== drop) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                    drops[drops.length] = v;
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                }
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            });
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            this.validDrops = drops;
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            return this;
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        },
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        /**
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @method isOverTarget
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @description Check to see if the Drag element is over the target, method varies on current mode
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @param {Object} drop The drop to check against
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @return {Boolean}
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        */
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        isOverTarget: function(drop) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            if (this.activeDrag && drop) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                var xy = this.activeDrag.mouseXY;
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                if (xy) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                    if (this.activeDrag.get('dragMode') == this.STRICT) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                        return this.activeDrag.get('dragNode').inRegion(drop.region, true, this.activeDrag.region);
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                    } else {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                        if (drop && drop.shim) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                            return drop.shim.intersect({
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                                top: xy[1],
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                                bottom: xy[1],
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                                left: xy[0],
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                                right: xy[0]
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                            }, drop.region).inRegion;
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                        } else {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                            return false;
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                        }
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                    }
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                } else {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                    return false;
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                }
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            } else {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                return false;
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            }
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        },
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        /**
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass        * @method clearCache
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @description Clears the cache data used for this interaction.
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        */
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        clearCache: function() {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            this.validDrops = [];
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            this.otherDrops = {};
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            this._activeShims = [];
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        },
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        /**
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @private
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @method _activateTargets
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        * @description Clear the cache and activate the shims of all the targets
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        */
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        _activateTargets: function() {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            this.clearCache();
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            Y.each(this.targets, function(v, k) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                v._activateShim.apply(v, []);
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            }, this);
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            this._handleTargetOver();
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass        },
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass        /**
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass        * @method getBestMatch
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass        * @description This method will gather the area for all potential targets and see which has the hightest covered area and return it.
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass        * @param {Array} drops An Array of drops to scan for the best match.
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass        * @param {Boolean} all If present, it returns an Array. First item is best match, second is an Array of the other items in the original Array.
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass        * @return {Object or Array}
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass        */
5cbdc947eb0c9c5e840d59ff8e1dd49a0e2a1887Dav Glass        getBestMatch: function(drops, all) {
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass            var biggest = null, area = 0, out;
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass            Y.each(drops, function(v, k) {
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                var inter = this.activeDrag.get('dragNode').intersect(v.get('node'));
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                v.region.area = inter.area;
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                if (inter.inRegion) {
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                    if (inter.area > area) {
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                        area = inter.area;
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                        biggest = v;
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass                    }
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                }
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass            }, this);
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass            if (all) {
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                out = [];
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass                //TODO Sort the others in numeric order by area covered..
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                Y.each(drops, function(v, k) {
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                    if (v !== biggest) {
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                        out[out.length] = v;
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                    }
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                }, this);
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                return [biggest, out];
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass            } else {
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                return biggest;
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass            }
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass        },
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass        /**
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass        * @private
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass        * @method _deactivateTargets
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass        * @description This method fires the drop:hit, drag:drophit, drag:dropmiss methods and deactivates the shims..
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass        */
573bad453b98b1e493f4abfcf507f85b22b6bf4aDav Glass        _deactivateTargets: function() {
a0c3229e02af852e4b15bf6d4cf4e862440bb00eDav Glass            var other = [], tmp,
a0c3229e02af852e4b15bf6d4cf4e862440bb00eDav Glass                activeDrag = this.activeDrag,
a0c3229e02af852e4b15bf6d4cf4e862440bb00eDav Glass                activeDrop = this.activeDrop;
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass            //TODO why is this check so hard??
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass            if (activeDrag && activeDrop && this.otherDrops[activeDrop]) {
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                if (!activeDrag.get('dragMode')) {
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                    //TODO otherDrops -- private..
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                    other = this.otherDrops;
5cbdc947eb0c9c5e840d59ff8e1dd49a0e2a1887Dav Glass                    delete other[activeDrop];
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                } else {
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                    tmp = this.getBestMatch(this.otherDrops, true);
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                    activeDrop = tmp[0];
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                    other = tmp[1];
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                }
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                activeDrag.get('node').removeClass(this.CSS_PREFIX + '-drag-over');
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                if (activeDrop) {
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                    activeDrop.fire('drop:hit', { drag: activeDrag, drop: activeDrop, others: other });
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                    activeDrag.fire('drag:drophit', { drag: activeDrag,  drop: activeDrop, others: other });
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass                }
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass            } else if (activeDrag) {
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass                activeDrag.get('node').removeClass(this.CSS_PREFIX + '-drag-over');
5cbdc947eb0c9c5e840d59ff8e1dd49a0e2a1887Dav Glass                activeDrag.fire('drag:dropmiss', { pageX: activeDrag.lastXY[0], pageY: activeDrag.lastXY[1] });
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass            } else {
e08067d50c8d5e4692441db53bba084c7a667e0aDav Glass            }
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass            this.activeDrop = null;
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass            Y.each(this.targets, function(v, k) {
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass                v._deactivateShim.apply(v, []);
b80d65233fd7492f4b6487349f5364b9a8ca019eDav Glass            }, this);
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        },
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        /**
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @private
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @method _dropMove
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @description This method is called when the move method is called on the Drag Object.
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        */
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        _dropMove: function() {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass            if (this._hasActiveShim()) {
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass                this._handleTargetOver();
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass            } else {
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass                Y.each(this.otherDrops, function(v, k) {
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass                    v._handleOut.apply(v, []);
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass                });
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass            }
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass        },
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass        /**
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass        * @private
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass        * @method _lookup
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass        * @description Filters the list of Drops down to those in the viewport.
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass        * @return {Array} The valid Drop Targets that are in the viewport.
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass        */
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        _lookup: function() {
a2621d519886de7d60c30c5a0850f5c17fd2fb36Dav Glass            if (!this.useHash || this._noShim) {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass                return this.validDrops;
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass            }
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass            var drops = [];
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass            //Only scan drop shims that are in the Viewport
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass            Y.each(this.validDrops, function(v, k) {
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass                if (v.shim && v.shim.inViewportRegion(false, v.region)) {
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass                    drops[drops.length] = v;
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass                }
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass            });
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass            return drops;
9d0be4bedcaad945c505994577198223ffc4ed9eDav Glass
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        },
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        /**
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @private
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @method _handleTargetOver
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass        * @description This method execs _handleTargetOver on all valid Drop Targets
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        */
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        _handleTargetOver: function() {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            var drops = this._lookup();
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass            Y.each(drops, function(v, k) {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass                v._handleTargetOver.call(v);
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass            }, this);
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass        },
998d2791b549446db8394dc80d46a94a247857d9Dav Glass        /**
998d2791b549446db8394dc80d46a94a247857d9Dav Glass        * @private
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @method _regTarget
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @description Add the passed in Target to the targets collection
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @param {Object} t The Target to add to the targets collection
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        */
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        _regTarget: function(t) {
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass            this.targets[this.targets.length] = t;
998d2791b549446db8394dc80d46a94a247857d9Dav Glass        },
998d2791b549446db8394dc80d46a94a247857d9Dav Glass        /**
998d2791b549446db8394dc80d46a94a247857d9Dav Glass        * @private
998d2791b549446db8394dc80d46a94a247857d9Dav Glass        * @method _unregTarget
998d2791b549446db8394dc80d46a94a247857d9Dav Glass        * @description Remove the passed in Target from the targets collection
998d2791b549446db8394dc80d46a94a247857d9Dav Glass        * @param {Object} drop The Target to remove from the targets collection
998d2791b549446db8394dc80d46a94a247857d9Dav Glass        */
998d2791b549446db8394dc80d46a94a247857d9Dav Glass        _unregTarget: function(drop) {
998d2791b549446db8394dc80d46a94a247857d9Dav Glass            var targets = [], vdrops;
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass            Y.each(this.targets, function(v, k) {
998d2791b549446db8394dc80d46a94a247857d9Dav Glass                if (v != drop) {
998d2791b549446db8394dc80d46a94a247857d9Dav Glass                    targets[targets.length] = v;
998d2791b549446db8394dc80d46a94a247857d9Dav Glass                }
998d2791b549446db8394dc80d46a94a247857d9Dav Glass            }, this);
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass            this.targets = targets;
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass            vdrops = [];
91085c33d52b89808c10ff61e5a94d7b35d57d65Dav Glass            Y.each(this.validDrops, function(v, k) {
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                if (v !== drop) {
998d2791b549446db8394dc80d46a94a247857d9Dav Glass                    vdrops[vdrops.length] = v;
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass                }
7058d70d5189510fab628ef8d64bb50dd726a941Dav Glass            });
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass            this.validDrops = vdrops;
7058d70d5189510fab628ef8d64bb50dd726a941Dav Glass        },
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        /**
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        * @method getDrop
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        * @description Get a valid Drop instance back from a Node or a selector string, false otherwise
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        * @param {String/Object} node The Node instance or Selector string to check for a valid Drop Object
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        * @return {Object}
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        */
b7bd9aa409761c479bb0a2e5794295d35ebe24eaDav Glass        getDrop: function(node) {
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass            var drop = false,
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass                n = Y.Node.get(node);
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass            if (n instanceof Y.Node) {
998d2791b549446db8394dc80d46a94a247857d9Dav Glass                Y.each(this.targets, function(v, k) {
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass                    if (n.compareTo(v.get('node'))) {
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass                        drop = v;
762b21413a7bbc38b5c7b2d94385fb44f26f9d39Dav Glass                    }
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass                });
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass            }
323ca860aba4b2515b560796e2322d5eaae57e5aDav Glass            return drop;
dbf2c770f8178b12e8fe3c36bfa29df58ef13959Dav Glass        }
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass    }, true);
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass
e20a95dc78bf51b6544e7bfb4e53ed190ecec3c9Dav Glass}, '@VERSION@' ,{requires:['dd-ddm'], skinnable:false});
998d2791b549446db8394dc80d46a94a247857d9Dav Glass