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torben |
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/*! |
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* jQuery UI Droppable 1.10.3 |
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* http://jqueryui.com |
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* |
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* Copyright 2013 jQuery Foundation and other contributors |
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* Released under the MIT license. |
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* http://jquery.org/license |
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* |
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* http://api.jqueryui.com/droppable/ |
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* |
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* Depends: |
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* jquery.ui.core.js |
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* jquery.ui.widget.js |
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* jquery.ui.mouse.js |
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* jquery.ui.draggable.js |
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*/ |
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(function( $, undefined ) { |
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function isOverAxis( x, reference, size ) { |
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return ( x > reference ) && ( x < ( reference + size ) ); |
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} |
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$.widget("ui.droppable", { |
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version: "1.10.3", |
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widgetEventPrefix: "drop", |
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options: { |
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accept: "*", |
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activeClass: false, |
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addClasses: true, |
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greedy: false, |
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hoverClass: false, |
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scope: "default", |
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tolerance: "intersect", |
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// callbacks |
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activate: null, |
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deactivate: null, |
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drop: null, |
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out: null, |
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over: null |
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}, |
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_create: function() { |
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var o = this.options, |
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accept = o.accept; |
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this.isover = false; |
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this.isout = true; |
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this.accept = $.isFunction(accept) ? accept : function(d) { |
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return d.is(accept); |
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}; |
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//Store the droppable's proportions |
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this.proportions = { width: this.element[0].offsetWidth, height: this.element[0].offsetHeight }; |
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// Add the reference and positions to the manager |
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$.ui.ddmanager.droppables[o.scope] = $.ui.ddmanager.droppables[o.scope] || []; |
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$.ui.ddmanager.droppables[o.scope].push(this); |
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(o.addClasses && this.element.addClass("ui-droppable")); |
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}, |
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_destroy: function() { |
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var i = 0, |
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drop = $.ui.ddmanager.droppables[this.options.scope]; |
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for ( ; i < drop.length; i++ ) { |
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if ( drop[i] === this ) { |
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drop.splice(i, 1); |
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} |
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} |
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this.element.removeClass("ui-droppable ui-droppable-disabled"); |
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}, |
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_setOption: function(key, value) { |
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if(key === "accept") { |
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this.accept = $.isFunction(value) ? value : function(d) { |
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return d.is(value); |
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}; |
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} |
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$.Widget.prototype._setOption.apply(this, arguments); |
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}, |
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_activate: function(event) { |
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var draggable = $.ui.ddmanager.current; |
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if(this.options.activeClass) { |
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this.element.addClass(this.options.activeClass); |
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} |
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if(draggable){ |
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this._trigger("activate", event, this.ui(draggable)); |
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} |
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}, |
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_deactivate: function(event) { |
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var draggable = $.ui.ddmanager.current; |
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if(this.options.activeClass) { |
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this.element.removeClass(this.options.activeClass); |
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} |
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if(draggable){ |
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this._trigger("deactivate", event, this.ui(draggable)); |
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} |
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}, |
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_over: function(event) { |
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var draggable = $.ui.ddmanager.current; |
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// Bail if draggable and droppable are same element |
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if (!draggable || (draggable.currentItem || draggable.element)[0] === this.element[0]) { |
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return; |
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} |
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if (this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) { |
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if(this.options.hoverClass) { |
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this.element.addClass(this.options.hoverClass); |
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} |
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this._trigger("over", event, this.ui(draggable)); |
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} |
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}, |
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_out: function(event) { |
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var draggable = $.ui.ddmanager.current; |
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// Bail if draggable and droppable are same element |
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if (!draggable || (draggable.currentItem || draggable.element)[0] === this.element[0]) { |
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return; |
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} |
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if (this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) { |
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if(this.options.hoverClass) { |
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this.element.removeClass(this.options.hoverClass); |
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} |
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this._trigger("out", event, this.ui(draggable)); |
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} |
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}, |
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_drop: function(event,custom) { |
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var draggable = custom || $.ui.ddmanager.current, |
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childrenIntersection = false; |
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// Bail if draggable and droppable are same element |
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if (!draggable || (draggable.currentItem || draggable.element)[0] === this.element[0]) { |
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return false; |
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} |
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this.element.find(":data(ui-droppable)").not(".ui-draggable-dragging").each(function() { |
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var inst = $.data(this, "ui-droppable"); |
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if( |
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inst.options.greedy && |
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!inst.options.disabled && |
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inst.options.scope === draggable.options.scope && |
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inst.accept.call(inst.element[0], (draggable.currentItem || draggable.element)) && |
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$.ui.intersect(draggable, $.extend(inst, { offset: inst.element.offset() }), inst.options.tolerance) |
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) { childrenIntersection = true; return false; } |
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}); |
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if(childrenIntersection) { |
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return false; |
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} |
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if(this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) { |
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if(this.options.activeClass) { |
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this.element.removeClass(this.options.activeClass); |
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} |
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if(this.options.hoverClass) { |
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this.element.removeClass(this.options.hoverClass); |
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} |
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this._trigger("drop", event, this.ui(draggable)); |
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return this.element; |
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} |
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return false; |
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}, |
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ui: function(c) { |
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return { |
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draggable: (c.currentItem || c.element), |
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helper: c.helper, |
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position: c.position, |
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offset: c.positionAbs |
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}; |
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} |
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}); |
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$.ui.intersect = function(draggable, droppable, toleranceMode) { |
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if (!droppable.offset) { |
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return false; |
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} |
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var draggableLeft, draggableTop, |
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x1 = (draggable.positionAbs || draggable.position.absolute).left, x2 = x1 + draggable.helperProportions.width, |
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y1 = (draggable.positionAbs || draggable.position.absolute).top, y2 = y1 + draggable.helperProportions.height, |
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l = droppable.offset.left, r = l + droppable.proportions.width, |
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t = droppable.offset.top, b = t + droppable.proportions.height; |
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switch (toleranceMode) { |
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case "fit": |
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return (l <= x1 && x2 <= r && t <= y1 && y2 <= b); |
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case "intersect": |
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return (l < x1 + (draggable.helperProportions.width / 2) && // Right Half |
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x2 - (draggable.helperProportions.width / 2) < r && // Left Half |
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t < y1 + (draggable.helperProportions.height / 2) && // Bottom Half |
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y2 - (draggable.helperProportions.height / 2) < b ); // Top Half |
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case "pointer": |
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draggableLeft = ((draggable.positionAbs || draggable.position.absolute).left + (draggable.clickOffset || draggable.offset.click).left); |
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draggableTop = ((draggable.positionAbs || draggable.position.absolute).top + (draggable.clickOffset || draggable.offset.click).top); |
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return isOverAxis( draggableTop, t, droppable.proportions.height ) && isOverAxis( draggableLeft, l, droppable.proportions.width ); |
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case "touch": |
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return ( |
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(y1 >= t && y1 <= b) || // Top edge touching |
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(y2 >= t && y2 <= b) || // Bottom edge touching |
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(y1 < t && y2 > b) // Surrounded vertically |
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) && ( |
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(x1 >= l && x1 <= r) || // Left edge touching |
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(x2 >= l && x2 <= r) || // Right edge touching |
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(x1 < l && x2 > r) // Surrounded horizontally |
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); |
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default: |
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return false; |
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} |
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}; |
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/* |
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This manager tracks offsets of draggables and droppables |
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*/ |
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$.ui.ddmanager = { |
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current: null, |
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droppables: { "default": [] }, |
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prepareOffsets: function(t, event) { |
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var i, j, |
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m = $.ui.ddmanager.droppables[t.options.scope] || [], |
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type = event ? event.type : null, // workaround for #2317 |
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list = (t.currentItem || t.element).find(":data(ui-droppable)").addBack(); |
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droppablesLoop: for (i = 0; i < m.length; i++) { |
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//No disabled and non-accepted |
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if(m[i].options.disabled || (t && !m[i].accept.call(m[i].element[0],(t.currentItem || t.element)))) { |
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continue; |
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} |
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// Filter out elements in the current dragged item |
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for (j=0; j < list.length; j++) { |
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if(list[j] === m[i].element[0]) { |
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m[i].proportions.height = 0; |
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continue droppablesLoop; |
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} |
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} |
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m[i].visible = m[i].element.css("display") !== "none"; |
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if(!m[i].visible) { |
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continue; |
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} |
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//Activate the droppable if used directly from draggables |
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if(type === "mousedown") { |
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m[i]._activate.call(m[i], event); |
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} |
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m[i].offset = m[i].element.offset(); |
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m[i].proportions = { width: m[i].element[0].offsetWidth, height: m[i].element[0].offsetHeight }; |
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} |
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}, |
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drop: function(draggable, event) { |
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var dropped = false; |
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// Create a copy of the droppables in case the list changes during the drop (#9116) |
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$.each(($.ui.ddmanager.droppables[draggable.options.scope] || []).slice(), function() { |
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if(!this.options) { |
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return; |
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} |
| 287 |
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if (!this.options.disabled && this.visible && $.ui.intersect(draggable, this, this.options.tolerance)) { |
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dropped = this._drop.call(this, event) || dropped; |
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} |
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| 291 |
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if (!this.options.disabled && this.visible && this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) { |
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this.isout = true; |
| 293 |
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this.isover = false; |
| 294 |
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this._deactivate.call(this, event); |
| 295 |
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} |
| 296 |
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| 297 |
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}); |
| 298 |
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return dropped; |
| 299 |
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| 300 |
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}, |
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dragStart: function( draggable, event ) { |
| 302 |
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//Listen for scrolling so that if the dragging causes scrolling the position of the droppables can be recalculated (see #5003) |
| 303 |
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draggable.element.parentsUntil( "body" ).bind( "scroll.droppable", function() { |
| 304 |
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if( !draggable.options.refreshPositions ) { |
| 305 |
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$.ui.ddmanager.prepareOffsets( draggable, event ); |
| 306 |
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} |
| 307 |
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}); |
| 308 |
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}, |
| 309 |
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drag: function(draggable, event) { |
| 310 |
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| 311 |
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//If you have a highly dynamic page, you might try this option. It renders positions every time you move the mouse. |
| 312 |
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if(draggable.options.refreshPositions) { |
| 313 |
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$.ui.ddmanager.prepareOffsets(draggable, event); |
| 314 |
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} |
| 315 |
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| 316 |
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//Run through all droppables and check their positions based on specific tolerance options |
| 317 |
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$.each($.ui.ddmanager.droppables[draggable.options.scope] || [], function() { |
| 318 |
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| 319 |
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if(this.options.disabled || this.greedyChild || !this.visible) { |
| 320 |
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return; |
| 321 |
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} |
| 322 |
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| 323 |
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var parentInstance, scope, parent, |
| 324 |
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intersects = $.ui.intersect(draggable, this, this.options.tolerance), |
| 325 |
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c = !intersects && this.isover ? "isout" : (intersects && !this.isover ? "isover" : null); |
| 326 |
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if(!c) { |
| 327 |
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return; |
| 328 |
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} |
| 329 |
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| 330 |
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if (this.options.greedy) { |
| 331 |
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// find droppable parents with same scope |
| 332 |
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scope = this.options.scope; |
| 333 |
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parent = this.element.parents(":data(ui-droppable)").filter(function () { |
| 334 |
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return $.data(this, "ui-droppable").options.scope === scope; |
| 335 |
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}); |
| 336 |
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| 337 |
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if (parent.length) { |
| 338 |
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parentInstance = $.data(parent[0], "ui-droppable"); |
| 339 |
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parentInstance.greedyChild = (c === "isover"); |
| 340 |
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} |
| 341 |
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} |
| 342 |
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| 343 |
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// we just moved into a greedy child |
| 344 |
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if (parentInstance && c === "isover") { |
| 345 |
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parentInstance.isover = false; |
| 346 |
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parentInstance.isout = true; |
| 347 |
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parentInstance._out.call(parentInstance, event); |
| 348 |
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} |
| 349 |
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| 350 |
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this[c] = true; |
| 351 |
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this[c === "isout" ? "isover" : "isout"] = false; |
| 352 |
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this[c === "isover" ? "_over" : "_out"].call(this, event); |
| 353 |
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| 354 |
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// we just moved out of a greedy child |
| 355 |
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if (parentInstance && c === "isout") { |
| 356 |
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parentInstance.isout = false; |
| 357 |
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parentInstance.isover = true; |
| 358 |
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parentInstance._over.call(parentInstance, event); |
| 359 |
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} |
| 360 |
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}); |
| 361 |
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| 362 |
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}, |
| 363 |
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dragStop: function( draggable, event ) { |
| 364 |
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draggable.element.parentsUntil( "body" ).unbind( "scroll.droppable" ); |
| 365 |
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//Call prepareOffsets one final time since IE does not fire return scroll events when overflow was caused by drag (see #5003) |
| 366 |
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if( !draggable.options.refreshPositions ) { |
| 367 |
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$.ui.ddmanager.prepareOffsets( draggable, event ); |
| 368 |
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} |
| 369 |
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} |
| 370 |
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}; |
| 371 |
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|
| 372 |
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})(jQuery); |
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