--- /dev/null
+/*
+ * jQuery UI Droppable 1.8.16
+ *
+ * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT or GPL Version 2 licenses.
+ * http://jquery.org/license
+ *
+ * http://docs.jquery.com/UI/Droppables
+ *
+ * Depends:
+ * jquery.ui.core.js
+ * jquery.ui.widget.js
+ * jquery.ui.mouse.js
+ * jquery.ui.draggable.js
+ */
+(function( $, undefined ) {
+
+$.widget("ui.droppable", {
+ widgetEventPrefix: "drop",
+ options: {
+ accept: '*',
+ activeClass: false,
+ addClasses: true,
+ greedy: false,
+ hoverClass: false,
+ scope: 'default',
+ tolerance: 'intersect'
+ },
+ _create: function() {
+
+ var o = this.options, accept = o.accept;
+ this.isover = 0; this.isout = 1;
+
+ this.accept = $.isFunction(accept) ? accept : function(d) {
+ return d.is(accept);
+ };
+
+ //Store the droppable's proportions
+ this.proportions = { width: this.element[0].offsetWidth, height: this.element[0].offsetHeight };
+
+ // Add the reference and positions to the manager
+ $.ui.ddmanager.droppables[o.scope] = $.ui.ddmanager.droppables[o.scope] || [];
+ $.ui.ddmanager.droppables[o.scope].push(this);
+
+ (o.addClasses && this.element.addClass("ui-droppable"));
+
+ },
+
+ destroy: function() {
+ var drop = $.ui.ddmanager.droppables[this.options.scope];
+ for ( var i = 0; i < drop.length; i++ )
+ if ( drop[i] == this )
+ drop.splice(i, 1);
+
+ this.element
+ .removeClass("ui-droppable ui-droppable-disabled")
+ .removeData("droppable")
+ .unbind(".droppable");
+
+ return this;
+ },
+
+ _setOption: function(key, value) {
+
+ if(key == 'accept') {
+ this.accept = $.isFunction(value) ? value : function(d) {
+ return d.is(value);
+ };
+ }
+ $.Widget.prototype._setOption.apply(this, arguments);
+ },
+
+ _activate: function(event) {
+ var draggable = $.ui.ddmanager.current;
+ if(this.options.activeClass) this.element.addClass(this.options.activeClass);
+ (draggable && this._trigger('activate', event, this.ui(draggable)));
+ },
+
+ _deactivate: function(event) {
+ var draggable = $.ui.ddmanager.current;
+ if(this.options.activeClass) this.element.removeClass(this.options.activeClass);
+ (draggable && this._trigger('deactivate', event, this.ui(draggable)));
+ },
+
+ _over: function(event) {
+
+ var draggable = $.ui.ddmanager.current;
+ if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return; // Bail if draggable and droppable are same element
+
+ if (this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
+ if(this.options.hoverClass) this.element.addClass(this.options.hoverClass);
+ this._trigger('over', event, this.ui(draggable));
+ }
+
+ },
+
+ _out: function(event) {
+
+ var draggable = $.ui.ddmanager.current;
+ if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return; // Bail if draggable and droppable are same element
+
+ if (this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
+ if(this.options.hoverClass) this.element.removeClass(this.options.hoverClass);
+ this._trigger('out', event, this.ui(draggable));
+ }
+
+ },
+
+ _drop: function(event,custom) {
+
+ var draggable = custom || $.ui.ddmanager.current;
+ if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return false; // Bail if draggable and droppable are same element
+
+ var childrenIntersection = false;
+ this.element.find(":data(droppable)").not(".ui-draggable-dragging").each(function() {
+ var inst = $.data(this, 'droppable');
+ if(
+ inst.options.greedy
+ && !inst.options.disabled
+ && inst.options.scope == draggable.options.scope
+ && inst.accept.call(inst.element[0], (draggable.currentItem || draggable.element))
+ && $.ui.intersect(draggable, $.extend(inst, { offset: inst.element.offset() }), inst.options.tolerance)
+ ) { childrenIntersection = true; return false; }
+ });
+ if(childrenIntersection) return false;
+
+ if(this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
+ if(this.options.activeClass) this.element.removeClass(this.options.activeClass);
+ if(this.options.hoverClass) this.element.removeClass(this.options.hoverClass);
+ this._trigger('drop', event, this.ui(draggable));
+ return this.element;
+ }
+
+ return false;
+
+ },
+
+ ui: function(c) {
+ return {
+ draggable: (c.currentItem || c.element),
+ helper: c.helper,
+ position: c.position,
+ offset: c.positionAbs
+ };
+ }
+
+});
+
+$.extend($.ui.droppable, {
+ version: "1.8.16"
+});
+
+$.ui.intersect = function(draggable, droppable, toleranceMode) {
+
+ if (!droppable.offset) return false;
+
+ var x1 = (draggable.positionAbs || draggable.position.absolute).left, x2 = x1 + draggable.helperProportions.width,
+ y1 = (draggable.positionAbs || draggable.position.absolute).top, y2 = y1 + draggable.helperProportions.height;
+ var l = droppable.offset.left, r = l + droppable.proportions.width,
+ t = droppable.offset.top, b = t + droppable.proportions.height;
+
+ switch (toleranceMode) {
+ case 'fit':
+ return (l <= x1 && x2 <= r
+ && t <= y1 && y2 <= b);
+ break;
+ case 'intersect':
+ return (l < x1 + (draggable.helperProportions.width / 2) // Right Half
+ && x2 - (draggable.helperProportions.width / 2) < r // Left Half
+ && t < y1 + (draggable.helperProportions.height / 2) // Bottom Half
+ && y2 - (draggable.helperProportions.height / 2) < b ); // Top Half
+ break;
+ case 'pointer':
+ var draggableLeft = ((draggable.positionAbs || draggable.position.absolute).left + (draggable.clickOffset || draggable.offset.click).left),
+ draggableTop = ((draggable.positionAbs || draggable.position.absolute).top + (draggable.clickOffset || draggable.offset.click).top),
+ isOver = $.ui.isOver(draggableTop, draggableLeft, t, l, droppable.proportions.height, droppable.proportions.width);
+ return isOver;
+ break;
+ case 'touch':
+ return (
+ (y1 >= t && y1 <= b) || // Top edge touching
+ (y2 >= t && y2 <= b) || // Bottom edge touching
+ (y1 < t && y2 > b) // Surrounded vertically
+ ) && (
+ (x1 >= l && x1 <= r) || // Left edge touching
+ (x2 >= l && x2 <= r) || // Right edge touching
+ (x1 < l && x2 > r) // Surrounded horizontally
+ );
+ break;
+ default:
+ return false;
+ break;
+ }
+
+};
+
+/*
+ This manager tracks offsets of draggables and droppables
+*/
+$.ui.ddmanager = {
+ current: null,
+ droppables: { 'default': [] },
+ prepareOffsets: function(t, event) {
+
+ var m = $.ui.ddmanager.droppables[t.options.scope] || [];
+ var type = event ? event.type : null; // workaround for #2317
+ var list = (t.currentItem || t.element).find(":data(droppable)").andSelf();
+
+ droppablesLoop: for (var i = 0; i < m.length; i++) {
+
+ if(m[i].options.disabled || (t && !m[i].accept.call(m[i].element[0],(t.currentItem || t.element)))) continue; //No disabled and non-accepted
+ for (var j=0; j < list.length; j++) { if(list[j] == m[i].element[0]) { m[i].proportions.height = 0; continue droppablesLoop; } }; //Filter out elements in the current dragged item
+ m[i].visible = m[i].element.css("display") != "none"; if(!m[i].visible) continue; //If the element is not visible, continue
+
+ if(type == "mousedown") m[i]._activate.call(m[i], event); //Activate the droppable if used directly from draggables
+
+ m[i].offset = m[i].element.offset();
+ m[i].proportions = { width: m[i].element[0].offsetWidth, height: m[i].element[0].offsetHeight };
+
+ }
+
+ },
+ drop: function(draggable, event) {
+
+ var dropped = false;
+ $.each($.ui.ddmanager.droppables[draggable.options.scope] || [], function() {
+
+ if(!this.options) return;
+ if (!this.options.disabled && this.visible && $.ui.intersect(draggable, this, this.options.tolerance))
+ dropped = dropped || this._drop.call(this, event);
+
+ if (!this.options.disabled && this.visible && this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
+ this.isout = 1; this.isover = 0;
+ this._deactivate.call(this, event);
+ }
+
+ });
+ return dropped;
+
+ },
+ dragStart: function( draggable, event ) {
+ //Listen for scrolling so that if the dragging causes scrolling the position of the droppables can be recalculated (see #5003)
+ draggable.element.parents( ":not(body,html)" ).bind( "scroll.droppable", function() {
+ if( !draggable.options.refreshPositions ) $.ui.ddmanager.prepareOffsets( draggable, event );
+ });
+ },
+ drag: function(draggable, event) {
+
+ //If you have a highly dynamic page, you might try this option. It renders positions every time you move the mouse.
+ if(draggable.options.refreshPositions) $.ui.ddmanager.prepareOffsets(draggable, event);
+
+ //Run through all droppables and check their positions based on specific tolerance options
+ $.each($.ui.ddmanager.droppables[draggable.options.scope] || [], function() {
+
+ if(this.options.disabled || this.greedyChild || !this.visible) return;
+ var intersects = $.ui.intersect(draggable, this, this.options.tolerance);
+
+ var c = !intersects && this.isover == 1 ? 'isout' : (intersects && this.isover == 0 ? 'isover' : null);
+ if(!c) return;
+
+ var parentInstance;
+ if (this.options.greedy) {
+ var parent = this.element.parents(':data(droppable):eq(0)');
+ if (parent.length) {
+ parentInstance = $.data(parent[0], 'droppable');
+ parentInstance.greedyChild = (c == 'isover' ? 1 : 0);
+ }
+ }
+
+ // we just moved into a greedy child
+ if (parentInstance && c == 'isover') {
+ parentInstance['isover'] = 0;
+ parentInstance['isout'] = 1;
+ parentInstance._out.call(parentInstance, event);
+ }
+
+ this[c] = 1; this[c == 'isout' ? 'isover' : 'isout'] = 0;
+ this[c == "isover" ? "_over" : "_out"].call(this, event);
+
+ // we just moved out of a greedy child
+ if (parentInstance && c == 'isout') {
+ parentInstance['isout'] = 0;
+ parentInstance['isover'] = 1;
+ parentInstance._over.call(parentInstance, event);
+ }
+ });
+
+ },
+ dragStop: function( draggable, event ) {
+ draggable.element.parents( ":not(body,html)" ).unbind( "scroll.droppable" );
+ //Call prepareOffsets one final time since IE does not fire return scroll events when overflow was caused by drag (see #5003)
+ if( !draggable.options.refreshPositions ) $.ui.ddmanager.prepareOffsets( draggable, event );
+ }
+};
+
+})(jQuery);
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