mirror of
https://github.com/jquery/jquery-ui.git
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277 lines
7.5 KiB
JavaScript
277 lines
7.5 KiB
JavaScript
/*
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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 5587 2008-05-13 19:56:42Z scott.gonzalez $
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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 = $.extend({}, widgetPrototype, prototype);
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};
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/** Mouse Interaction Plugin **/
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$.ui.mouse = {
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mouseInit: function() {
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var self = this;
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this.element.bind('mousedown.mouse', function(e) {
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return self.mouseDown(e);
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});
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// Prevent text selection in IE
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if ($.browser.msie) {
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this._mouseUnselectable = this.element.attr('unselectable');
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this.element.attr('unselectable', 'on');
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}
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this.started = false;
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},
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// TODO: make sure destroying one instance of mouse doesn't mess with
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// other instances of mouse
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mouseDestroy: function() {
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this.element.unbind('.mouse');
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// Restore text selection in IE
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($.browser.msie
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&& this.element.attr('unselectable', this._mouseUnselectable));
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},
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mouseDown: function(e) {
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// we may have missed mouseup (out of window)
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(this._mouseStarted && this.mouseUp(e));
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this._mouseDownEvent = e;
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var self = this,
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btnIsLeft = (e.which == 1),
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elIsCancel = ($(e.target).is(this.options.cancel));
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if (!btnIsLeft || elIsCancel) {
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return true;
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}
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this._mouseDelayMet = !this.options.delay;
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if (!this._mouseDelayMet) {
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this._mouseDelayTimer = setTimeout(function() {
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self._mouseDelayMet = true;
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}, this.options.delay);
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}
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// these delegates are required to keep context
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this._mouseMoveDelegate = function(e) {
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return self.mouseMove(e);
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};
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this._mouseUpDelegate = function(e) {
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return self.mouseUp(e);
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};
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$(document)
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.bind('mousemove.mouse', this._mouseMoveDelegate)
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.bind('mouseup.mouse', this._mouseUpDelegate);
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return false;
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},
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mouseMove: function(e) {
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// IE mouseup check - mouseup happened when mouse was out of window
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if ($.browser.msie && !e.button) {
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return this.mouseUp(e);
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}
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if (this._mouseStarted) {
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this.mouseDrag(e);
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return false;
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}
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if (this.mouseDistanceMet(e) && this.mouseDelayMet(e)) {
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this._mouseStarted =
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(this.mouseStart(this._mouseDownEvent, e) !== false);
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(this._mouseStarted || this.mouseUp(e));
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}
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return !this._mouseStarted;
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},
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mouseUp: function(e) {
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$(document)
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.unbind('mousemove.mouse', this._mouseMoveDelegate)
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.unbind('mouseup.mouse', this._mouseUpDelegate);
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if (this._mouseStarted) {
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this._mouseStarted = false;
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this.mouseStop(e);
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}
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return false;
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},
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mouseDistanceMet: function(e) {
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return (Math.max(
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Math.abs(this._mouseDownEvent.pageX - e.pageX),
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Math.abs(this._mouseDownEvent.pageY - e.pageY)
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) >= this.options.distance
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);
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},
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mouseDelayMet: function(e) {
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return this._mouseDelayMet;
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},
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// These are placeholder methods, to be overriden by extending plugin
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mouseStart: function(e) {},
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mouseDrag: function(e) {},
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mouseStop: function(e) {}
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};
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$.ui.mouse.defaults = {
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cancel: null,
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distance: 0,
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delay: 0
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};
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})(jQuery);
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