mirror of
https://github.com/jquery/jquery-ui.git
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242 lines
7.6 KiB
JavaScript
242 lines
7.6 KiB
JavaScript
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/*
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* jQuery UI @VERSION
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*
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* Copyright (c) 2008 Paul Bakaus (ui.jquery.com)
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* Dual licensed under the MIT (MIT-LICENSE.txt)
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* and GPL (GPL-LICENSE.txt) licenses.
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*
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* http://docs.jquery.com/UI
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*
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* $Id: ui.core.js 5634 2008-05-19 20:53:51Z joern.zaefferer $
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*/
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;(function($) {
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$.ui = {
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plugin: {
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add: function(module, option, set) {
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var proto = $.ui[module].prototype;
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for(var i in set) {
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proto.plugins[i] = proto.plugins[i] || [];
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proto.plugins[i].push([option, set[i]]);
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}
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},
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call: function(instance, name, args) {
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var set = instance.plugins[name];
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if(!set) { return; }
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for (var i = 0; i < set.length; i++) {
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if (instance.options[set[i][0]]) {
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set[i][1].apply(instance.element, args);
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}
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}
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}
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},
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cssCache: {},
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css: function(name) {
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if ($.ui.cssCache[name]) { return $.ui.cssCache[name]; }
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var tmp = $('<div class="ui-resizable-gen">').addClass(name).css({position:'absolute', top:'-5000px', left:'-5000px', display:'block'}).appendTo('body');
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//if (!$.browser.safari)
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//tmp.appendTo('body');
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//Opera and Safari set width and height to 0px instead of auto
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//Safari returns rgba(0,0,0,0) when bgcolor is not set
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$.ui.cssCache[name] = !!(
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(!(/auto|default/).test(tmp.css('cursor')) || (/^[1-9]/).test(tmp.css('height')) || (/^[1-9]/).test(tmp.css('width')) ||
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!(/none/).test(tmp.css('backgroundImage')) || !(/transparent|rgba\(0, 0, 0, 0\)/).test(tmp.css('backgroundColor')))
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);
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try { $('body').get(0).removeChild(tmp.get(0)); } catch(e){}
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return $.ui.cssCache[name];
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},
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disableSelection: function(e) {
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e.unselectable = "on";
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e.onselectstart = function() { return false; };
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if (e.style) { e.style.MozUserSelect = "none"; }
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},
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enableSelection: function(e) {
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e.unselectable = "off";
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e.onselectstart = function() { return true; };
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if (e.style) { e.style.MozUserSelect = ""; }
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},
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hasScroll: function(e, a) {
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var scroll = /top/.test(a||"top") ? 'scrollTop' : 'scrollLeft', has = false;
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if (e[scroll] > 0) return true; e[scroll] = 1;
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has = e[scroll] > 0 ? true : false; e[scroll] = 0;
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return has;
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}
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};
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/** jQuery core modifications and additions **/
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var _remove = $.fn.remove;
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$.fn.remove = function() {
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$("*", this).add(this).trigger("remove");
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return _remove.apply(this, arguments );
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};
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// $.widget is a factory to create jQuery plugins
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// taking some boilerplate code out of the plugin code
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// created by Scott González and Jörn Zaefferer
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function getter(namespace, plugin, method) {
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var methods = $[namespace][plugin].getter || [];
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methods = (typeof methods == "string" ? methods.split(/,?\s+/) : methods);
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return ($.inArray(method, methods) != -1);
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}
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var widgetPrototype = {
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init: function() {},
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destroy: function() {
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this.element.removeData(this.widgetName);
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},
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getData: function(key) {
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return this.options[key];
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},
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setData: function(key, value) {
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this.options[key] = value;
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},
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enable: function() {
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this.setData('disabled', false);
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},
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disable: function() {
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this.setData('disabled', true);
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}
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};
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$.widget = function(name, prototype) {
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var namespace = name.split(".")[0];
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name = name.split(".")[1];
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// create plugin method
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$.fn[name] = function(options) {
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var isMethodCall = (typeof options == 'string'),
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args = Array.prototype.slice.call(arguments, 1);
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if (isMethodCall && getter(namespace, name, options)) {
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var instance = $.data(this[0], name);
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return (instance ? instance[options].apply(instance, args)
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: undefined);
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}
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return this.each(function() {
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var instance = $.data(this, name);
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if (!instance) {
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$.data(this, name, new $[namespace][name](this, options));
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} else if (isMethodCall) {
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instance[options].apply(instance, args);
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}
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});
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};
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// create widget constructor
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$[namespace][name] = function(element, options) {
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var self = this;
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this.widgetName = name;
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this.options = $.extend({}, $[namespace][name].defaults, options);
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this.element = $(element)
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.bind('setData.' + name, function(e, key, value) {
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return self.setData(key, value);
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})
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.bind('getData.' + name, function(e, key) {
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return self.getData(key);
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})
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.bind('remove', function() {
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return self.destroy();
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});
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this.init();
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};
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// add widget prototype
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$[namespace][name].prototype = $.extend({}, widgetPrototype, prototype);
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};
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/** Mouse Interaction Plugin **/
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$.widget("ui.mouse", {
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init: function() {
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var self = this;
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this.element
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.bind('mousedown.mouse', function() { return self.click.apply(self, arguments); })
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.bind('mouseup.mouse', function() { (self.timer && clearTimeout(self.timer)); })
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.bind('click.mouse', function() { if(self.initialized) { self.initialized = false; return false; } });
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//Prevent text selection in IE
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if ($.browser.msie) {
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this.unselectable = this.element.attr('unselectable');
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this.element.attr('unselectable', 'on');
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}
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},
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destroy: function() {
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this.element.unbind('.mouse').removeData("mouse");
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($.browser.msie && this.element.attr('unselectable', this.unselectable));
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},
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trigger: function() { return this.click.apply(this, arguments); },
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click: function(e) {
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if( e.which != 1 //only left click starts dragging
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|| $.inArray(e.target.nodeName.toLowerCase(), this.options.dragPrevention || []) != -1 // Prevent execution on defined elements
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|| (this.options.condition && !this.options.condition.apply(this.options.executor || this, [e, this.element])) //Prevent execution on condition
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) { return true; }
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var self = this;
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this.initialized = false;
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var initialize = function() {
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self._MP = { left: e.pageX, top: e.pageY }; // Store the click mouse position
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$(document).bind('mouseup.mouse', function() { return self.stop.apply(self, arguments); });
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$(document).bind('mousemove.mouse', function() { return self.drag.apply(self, arguments); });
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if(!self.initalized && Math.abs(self._MP.left-e.pageX) >= self.options.distance || Math.abs(self._MP.top-e.pageY) >= self.options.distance) {
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(self.options.start && self.options.start.call(self.options.executor || self, e, self.element));
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(self.options.drag && self.options.drag.call(self.options.executor || self, e, this.element)); //This is actually not correct, but expected
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self.initialized = true;
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}
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};
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if(this.options.delay) {
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if(this.timer) { clearTimeout(this.timer); }
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this.timer = setTimeout(initialize, this.options.delay);
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} else {
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initialize();
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}
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return false;
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},
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stop: function(e) {
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if(!this.initialized) {
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return $(document).unbind('mouseup.mouse').unbind('mousemove.mouse');
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}
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(this.options.stop && this.options.stop.call(this.options.executor || this, e, this.element));
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$(document).unbind('mouseup.mouse').unbind('mousemove.mouse');
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return false;
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},
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drag: function(e) {
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var o = this.options;
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if ($.browser.msie && !e.button) {
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return this.stop.call(this, e); // IE mouseup check
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}
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if(!this.initialized && (Math.abs(this._MP.left-e.pageX) >= o.distance || Math.abs(this._MP.top-e.pageY) >= o.distance)) {
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(o.start && o.start.call(o.executor || this, e, this.element));
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this.initialized = true;
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} else {
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if(!this.initialized) { return false; }
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}
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(o.drag && o.drag.call(this.options.executor || this, e, this.element));
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return false;
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}
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});
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})(jQuery);
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