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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: "1.10.2",
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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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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 = $.isFunction(accept) ? accept : function(d) {
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return d.is(accept);
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};
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this.proportions = { width: this.element[0].offsetWidth, height: this.element[0].offsetHeight };
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$.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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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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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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150
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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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153
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this.element.find(":data(ui-droppable)").not(".ui-draggable-dragging").each(function() {
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var inst = $.data(this, "ui-droppable");
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156
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if(
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inst.options.greedy &&
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!inst.options.disabled &&
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inst.options.scope === draggable.options.scope &&
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inst.accept.call(inst.element[0], (draggable.currentItem || draggable.element)) &&
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161
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$.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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164
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if(childrenIntersection) {
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return false;
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166
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}
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167
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168
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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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170
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this.element.removeClass(this.options.activeClass);
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171
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}
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172
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if(this.options.hoverClass) {
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173
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this.element.removeClass(this.options.hoverClass);
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174
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}
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175
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this._trigger("drop", event, this.ui(draggable));
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176
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return this.element;
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177
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}
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178
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179
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return false;
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180
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181
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},
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182
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183
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ui: function(c) {
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184
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return {
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185
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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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189
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};
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190
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}
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191
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192
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});
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193
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194
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$.ui.intersect = function(draggable, droppable, toleranceMode) {
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195
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196
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if (!droppable.offset) {
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197
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return false;
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198
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}
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199
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200
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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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202
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y1 = (draggable.positionAbs || draggable.position.absolute).top, y2 = y1 + draggable.helperProportions.height,
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203
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l = droppable.offset.left, r = l + droppable.proportions.width,
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204
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t = droppable.offset.top, b = t + droppable.proportions.height;
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205
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206
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switch (toleranceMode) {
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207
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case "fit":
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208
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return (l <= x1 && x2 <= r && t <= y1 && y2 <= b);
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209
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case "intersect":
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210
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return (l < x1 + (draggable.helperProportions.width / 2) &&
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211
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x2 - (draggable.helperProportions.width / 2) < r &&
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t < y1 + (draggable.helperProportions.height / 2) &&
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213
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y2 - (draggable.helperProportions.height / 2) < b );
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214
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case "pointer":
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215
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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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217
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return isOverAxis( draggableTop, t, droppable.proportions.height ) && isOverAxis( draggableLeft, l, droppable.proportions.width );
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218
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case "touch":
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219
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return (
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220
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(y1 >= t && y1 <= b) ||
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221
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(y2 >= t && y2 <= b) ||
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222
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(y1 < t && y2 > b)
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223
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) && (
|
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224
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(x1 >= l && x1 <= r) ||
|
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225
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(x2 >= l && x2 <= r) ||
|
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226
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(x1 < l && x2 > r)
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227
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);
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228
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default:
|
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229
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return false;
|
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230
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}
|
|
231
|
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|
232
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};
|
|
233
|
|
|
234
|
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235
|
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236
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237
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$.ui.ddmanager = {
|
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238
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current: null,
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239
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droppables: { "default": [] },
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240
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prepareOffsets: function(t, event) {
|
|
241
|
|
|
242
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var i, j,
|
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243
|
m = $.ui.ddmanager.droppables[t.options.scope] || [],
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|
244
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type = event ? event.type : null,
|
|
245
|
list = (t.currentItem || t.element).find(":data(ui-droppable)").addBack();
|
|
246
|
|
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247
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droppablesLoop: for (i = 0; i < m.length; i++) {
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248
|
|
|
249
|
|
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250
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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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251
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continue;
|
|
252
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}
|
|
253
|
|
|
254
|
|
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255
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for (j=0; j < list.length; j++) {
|
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256
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if(list[j] === m[i].element[0]) {
|
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257
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m[i].proportions.height = 0;
|
|
258
|
continue droppablesLoop;
|
|
259
|
}
|
|
260
|
}
|
|
261
|
|
|
262
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m[i].visible = m[i].element.css("display") !== "none";
|
|
263
|
if(!m[i].visible) {
|
|
264
|
continue;
|
|
265
|
}
|
|
266
|
|
|
267
|
|
|
268
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if(type === "mousedown") {
|
|
269
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m[i]._activate.call(m[i], event);
|
|
270
|
}
|
|
271
|
|
|
272
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m[i].offset = m[i].element.offset();
|
|
273
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m[i].proportions = { width: m[i].element[0].offsetWidth, height: m[i].element[0].offsetHeight };
|
|
274
|
|
|
275
|
}
|
|
276
|
|
|
277
|
},
|
|
278
|
drop: function(draggable, event) {
|
|
279
|
|
|
280
|
var dropped = false;
|
|
281
|
|
|
282
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$.each(($.ui.ddmanager.droppables[draggable.options.scope] || []).slice(), function() {
|
|
283
|
|
|
284
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if(!this.options) {
|
|
285
|
return;
|
|
286
|
}
|
|
287
|
if (!this.options.disabled && this.visible && $.ui.intersect(draggable, this, this.options.tolerance)) {
|
|
288
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dropped = this._drop.call(this, event) || dropped;
|
|
289
|
}
|
|
290
|
|
|
291
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if (!this.options.disabled && this.visible && this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
|
|
292
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this.isout = true;
|
|
293
|
this.isover = false;
|
|
294
|
this._deactivate.call(this, event);
|
|
295
|
}
|
|
296
|
|
|
297
|
});
|
|
298
|
return dropped;
|
|
299
|
|
|
300
|
},
|
|
301
|
dragStart: function( draggable, event ) {
|
|
302
|
|
|
303
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draggable.element.parentsUntil( "body" ).bind( "scroll.droppable", function() {
|
|
304
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if( !draggable.options.refreshPositions ) {
|
|
305
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$.ui.ddmanager.prepareOffsets( draggable, event );
|
|
306
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}
|
|
307
|
});
|
|
308
|
},
|
|
309
|
drag: function(draggable, event) {
|
|
310
|
|
|
311
|
|
|
312
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if(draggable.options.refreshPositions) {
|
|
313
|
$.ui.ddmanager.prepareOffsets(draggable, event);
|
|
314
|
}
|
|
315
|
|
|
316
|
|
|
317
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$.each($.ui.ddmanager.droppables[draggable.options.scope] || [], function() {
|
|
318
|
|
|
319
|
if(this.options.disabled || this.greedyChild || !this.visible) {
|
|
320
|
return;
|
|
321
|
}
|
|
322
|
|
|
323
|
var parentInstance, scope, parent,
|
|
324
|
intersects = $.ui.intersect(draggable, this, this.options.tolerance),
|
|
325
|
c = !intersects && this.isover ? "isout" : (intersects && !this.isover ? "isover" : null);
|
|
326
|
if(!c) {
|
|
327
|
return;
|
|
328
|
}
|
|
329
|
|
|
330
|
if (this.options.greedy) {
|
|
331
|
|
|
332
|
scope = this.options.scope;
|
|
333
|
parent = this.element.parents(":data(ui-droppable)").filter(function () {
|
|
334
|
return $.data(this, "ui-droppable").options.scope === scope;
|
|
335
|
});
|
|
336
|
|
|
337
|
if (parent.length) {
|
|
338
|
parentInstance = $.data(parent[0], "ui-droppable");
|
|
339
|
parentInstance.greedyChild = (c === "isover");
|
|
340
|
}
|
|
341
|
}
|
|
342
|
|
|
343
|
|
|
344
|
if (parentInstance && c === "isover") {
|
|
345
|
parentInstance.isover = false;
|
|
346
|
parentInstance.isout = true;
|
|
347
|
parentInstance._out.call(parentInstance, event);
|
|
348
|
}
|
|
349
|
|
|
350
|
this[c] = true;
|
|
351
|
this[c === "isout" ? "isover" : "isout"] = false;
|
|
352
|
this[c === "isover" ? "_over" : "_out"].call(this, event);
|
|
353
|
|
|
354
|
|
|
355
|
if (parentInstance && c === "isout") {
|
|
356
|
parentInstance.isout = false;
|
|
357
|
parentInstance.isover = true;
|
|
358
|
parentInstance._over.call(parentInstance, event);
|
|
359
|
}
|
|
360
|
});
|
|
361
|
|
|
362
|
},
|
|
363
|
dragStop: function( draggable, event ) {
|
|
364
|
draggable.element.parentsUntil( "body" ).unbind( "scroll.droppable" );
|
|
365
|
|
|
366
|
if( !draggable.options.refreshPositions ) {
|
|
367
|
$.ui.ddmanager.prepareOffsets( draggable, event );
|
|
368
|
}
|
|
369
|
}
|
|
370
|
};
|
|
371
|
|
|
372
|
})(jQuery);
|
