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| /* |
| * jQuery UI Selectable 1.8.5 |
| * |
| * Copyright 2010, 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/Selectables |
| * |
| * Depends: |
| * jquery.ui.core.js |
| * jquery.ui.mouse.js |
| * jquery.ui.widget.js |
| */ |
| (function( $, undefined ) { |
| |
| $.widget("ui.selectable", $.ui.mouse, { |
| options: { |
| appendTo: 'body', |
| autoRefresh: true, |
| distance: 0, |
| filter: '*', |
| tolerance: 'touch' |
| }, |
| _create: function() { |
| var self = this; |
| |
| this.element.addClass("ui-selectable"); |
| |
| this.dragged = false; |
| |
| // cache selectee children based on filter |
| var selectees; |
| this.refresh = function() { |
| selectees = $(self.options.filter, self.element[0]); |
| selectees.each(function() { |
| var $this = $(this); |
| var pos = $this.offset(); |
| $.data(this, "selectable-item", { |
| element: this, |
| $element: $this, |
| left: pos.left, |
| top: pos.top, |
| right: pos.left + $this.outerWidth(), |
| bottom: pos.top + $this.outerHeight(), |
| startselected: false, |
| selected: $this.hasClass('ui-selected'), |
| selecting: $this.hasClass('ui-selecting'), |
| unselecting: $this.hasClass('ui-unselecting') |
| }); |
| }); |
| }; |
| this.refresh(); |
| |
| this.selectees = selectees.addClass("ui-selectee"); |
| |
| this._mouseInit(); |
| |
| this.helper = $("<div class='ui-selectable-helper'></div>"); |
| }, |
| |
| destroy: function() { |
| this.selectees |
| .removeClass("ui-selectee") |
| .removeData("selectable-item"); |
| this.element |
| .removeClass("ui-selectable ui-selectable-disabled") |
| .removeData("selectable") |
| .unbind(".selectable"); |
| this._mouseDestroy(); |
| |
| return this; |
| }, |
| |
| _mouseStart: function(event) { |
| var self = this; |
| |
| this.opos = [event.pageX, event.pageY]; |
| |
| if (this.options.disabled) |
| return; |
| |
| var options = this.options; |
| |
| this.selectees = $(options.filter, this.element[0]); |
| |
| this._trigger("start", event); |
| |
| $(options.appendTo).append(this.helper); |
| // position helper (lasso) |
| this.helper.css({ |
| "left": event.clientX, |
| "top": event.clientY, |
| "width": 0, |
| "height": 0 |
| }); |
| |
| if (options.autoRefresh) { |
| this.refresh(); |
| } |
| |
| this.selectees.filter('.ui-selected').each(function() { |
| var selectee = $.data(this, "selectable-item"); |
| selectee.startselected = true; |
| if (!event.metaKey) { |
| selectee.$element.removeClass('ui-selected'); |
| selectee.selected = false; |
| selectee.$element.addClass('ui-unselecting'); |
| selectee.unselecting = true; |
| // selectable UNSELECTING callback |
| self._trigger("unselecting", event, { |
| unselecting: selectee.element |
| }); |
| } |
| }); |
| |
| $(event.target).parents().andSelf().each(function() { |
| var selectee = $.data(this, "selectable-item"); |
| if (selectee) { |
| var doSelect = !event.metaKey || !selectee.$element.hasClass('ui-selected'); |
| selectee.$element |
| .removeClass(doSelect ? "ui-unselecting" : "ui-selected") |
| .addClass(doSelect ? "ui-selecting" : "ui-unselecting"); |
| selectee.unselecting = !doSelect; |
| selectee.selecting = doSelect; |
| selectee.selected = doSelect; |
| // selectable (UN)SELECTING callback |
| if (doSelect) { |
| self._trigger("selecting", event, { |
| selecting: selectee.element |
| }); |
| } else { |
| self._trigger("unselecting", event, { |
| unselecting: selectee.element |
| }); |
| } |
| return false; |
| } |
| }); |
| |
| }, |
| |
| _mouseDrag: function(event) { |
| var self = this; |
| this.dragged = true; |
| |
| if (this.options.disabled) |
| return; |
| |
| var options = this.options; |
| |
| var x1 = this.opos[0], y1 = this.opos[1], x2 = event.pageX, y2 = event.pageY; |
| if (x1 > x2) { var tmp = x2; x2 = x1; x1 = tmp; } |
| if (y1 > y2) { var tmp = y2; y2 = y1; y1 = tmp; } |
| this.helper.css({left: x1, top: y1, width: x2-x1, height: y2-y1}); |
| |
| this.selectees.each(function() { |
| var selectee = $.data(this, "selectable-item"); |
| //prevent helper from being selected if appendTo: selectable |
| if (!selectee || selectee.element == self.element[0]) |
| return; |
| var hit = false; |
| if (options.tolerance == 'touch') { |
| hit = ( !(selectee.left > x2 || selectee.right < x1 || selectee.top > y2 || selectee.bottom < y1) ); |
| } else if (options.tolerance == 'fit') { |
| hit = (selectee.left > x1 && selectee.right < x2 && selectee.top > y1 && selectee.bottom < y2); |
| } |
| |
| if (hit) { |
| // SELECT |
| if (selectee.selected) { |
| selectee.$element.removeClass('ui-selected'); |
| selectee.selected = false; |
| } |
| if (selectee.unselecting) { |
| selectee.$element.removeClass('ui-unselecting'); |
| selectee.unselecting = false; |
| } |
| if (!selectee.selecting) { |
| selectee.$element.addClass('ui-selecting'); |
| selectee.selecting = true; |
| // selectable SELECTING callback |
| self._trigger("selecting", event, { |
| selecting: selectee.element |
| }); |
| } |
| } else { |
| // UNSELECT |
| if (selectee.selecting) { |
| if (event.metaKey && selectee.startselected) { |
| selectee.$element.removeClass('ui-selecting'); |
| selectee.selecting = false; |
| selectee.$element.addClass('ui-selected'); |
| selectee.selected = true; |
| } else { |
| selectee.$element.removeClass('ui-selecting'); |
| selectee.selecting = false; |
| if (selectee.startselected) { |
| selectee.$element.addClass('ui-unselecting'); |
| selectee.unselecting = true; |
| } |
| // selectable UNSELECTING callback |
| self._trigger("unselecting", event, { |
| unselecting: selectee.element |
| }); |
| } |
| } |
| if (selectee.selected) { |
| if (!event.metaKey && !selectee.startselected) { |
| selectee.$element.removeClass('ui-selected'); |
| selectee.selected = false; |
| |
| selectee.$element.addClass('ui-unselecting'); |
| selectee.unselecting = true; |
| // selectable UNSELECTING callback |
| self._trigger("unselecting", event, { |
| unselecting: selectee.element |
| }); |
| } |
| } |
| } |
| }); |
| |
| return false; |
| }, |
| |
| _mouseStop: function(event) { |
| var self = this; |
| |
| this.dragged = false; |
| |
| var options = this.options; |
| |
| $('.ui-unselecting', this.element[0]).each(function() { |
| var selectee = $.data(this, "selectable-item"); |
| selectee.$element.removeClass('ui-unselecting'); |
| selectee.unselecting = false; |
| selectee.startselected = false; |
| self._trigger("unselected", event, { |
| unselected: selectee.element |
| }); |
| }); |
| $('.ui-selecting', this.element[0]).each(function() { |
| var selectee = $.data(this, "selectable-item"); |
| selectee.$element.removeClass('ui-selecting').addClass('ui-selected'); |
| selectee.selecting = false; |
| selectee.selected = true; |
| selectee.startselected = true; |
| self._trigger("selected", event, { |
| selected: selectee.element |
| }); |
| }); |
| this._trigger("stop", event); |
| |
| this.helper.remove(); |
| |
| return false; |
| } |
| |
| }); |
| |
| $.extend($.ui.selectable, { |
| version: "1.8.5" |
| }); |
| |
| })(jQuery); |