Current Path : C:/xampp/htdocs/moodle/lib/yuilib/3.17.2/dd-ddm/ |
Current File : C:/xampp/htdocs/moodle/lib/yuilib/3.17.2/dd-ddm/dd-ddm.js |
/* YUI 3.17.2 (build 9c3c78e) Copyright 2014 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add('dd-ddm', function (Y, NAME) { /** * Extends the dd-ddm-base Class to add support for the viewport shim to allow a draggable * anode to drag to be dragged over an iframe or any other node that traps mousemove events. * It is also required to have Drop Targets enabled, as the viewport shim will contain the shims for the Drop Targets. * @module dd * @submodule dd-ddm * @for DDM * @namespace DD */ Y.mix(Y.DD.DDM, { /** * The shim placed over the screen to track the mousemove event. * @private * @property _pg * @type {Node} */ _pg: null, /** * Set this to true to set the shims opacity to .5 for debugging it, default: false. * @private * @property _debugShim * @type {Boolean} */ _debugShim: false, _activateTargets: function() { }, _deactivateTargets: function() {}, _startDrag: function() { if (this.activeDrag && this.activeDrag.get('useShim')) { this._shimming = true; this._pg_activate(); this._activateTargets(); } }, _endDrag: function() { this._pg_deactivate(); this._deactivateTargets(); }, /** * Deactivates the shim * @private * @method _pg_deactivate */ _pg_deactivate: function() { this._pg.setStyle('display', 'none'); }, /** * Activates the shim * @private * @method _pg_activate */ _pg_activate: function() { if (!this._pg) { this._createPG(); } var ah = this.activeDrag.get('activeHandle'), cur = 'auto'; if (ah) { cur = ah.getStyle('cursor'); } if (cur === 'auto') { cur = this.get('dragCursor'); } this._pg_size(); this._pg.setStyles({ top: 0, left: 0, display: 'block', opacity: ((this._debugShim) ? '.5' : '0'), cursor: cur }); }, /** * Sizes the shim on: activatation, window:scroll, window:resize * @private * @method _pg_size */ _pg_size: function() { if (this.activeDrag) { var b = Y.one('body'), h = b.get('docHeight'), w = b.get('docWidth'); this._pg.setStyles({ height: h + 'px', width: w + 'px' }); } }, /** * Creates the shim and adds it's listeners to it. * @private * @method _createPG */ _createPG: function() { var pg = Y.Node.create('<div></div>'), bd = Y.one('body'), win; pg.setStyles({ top: '0', left: '0', position: 'absolute', zIndex: '9999', overflow: 'hidden', backgroundColor: 'red', display: 'none', height: '5px', width: '5px' }); pg.set('id', Y.stamp(pg)); pg.addClass(Y.DD.DDM.CSS_PREFIX + '-shim'); bd.prepend(pg); this._pg = pg; this._pg.on('mousemove', Y.throttle(Y.bind(this._move, this), this.get('throttleTime'))); this._pg.on('mouseup', Y.bind(this._end, this)); win = Y.one('win'); Y.on('window:resize', Y.bind(this._pg_size, this)); win.on('scroll', Y.bind(this._pg_size, this)); } }, true); }, '3.17.2', {"requires": ["dd-ddm-base", "event-resize"]});