mirror of
https://github.com/jquery/jquery-ui.git
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118 lines
4.2 KiB
JavaScript
118 lines
4.2 KiB
JavaScript
/*
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* jQuery UI History
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*
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* Copyright (c) 2008 Klaus Hartl (stilbuero.de)
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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/History
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*
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* Revision: $Id: ui.history.js 5218 2008-04-09 20:08:24Z rdworth $
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*/
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;(function($) {
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// if the UI scope is not availalable, add it
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$.ui = $.ui || {};
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// TODO lazy loading singleton
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$.ui.hmanager = new function() {
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var states = {}, def = function() {};
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var $window = $(window), hash = location.hash;
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function getState() {
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return hash.replace('#', '');
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}
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var iframe;
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// var keepHistoryIn = iframe || window;
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return {
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enable: function() {
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if ($.browser.msie && parseInt($.browser.version) < 8) {
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$(function() {
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// create hidden iframe for hash change tracking
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iframe = $('<iframe id="ui-history-iframe" style="display: none;"></iframe>').
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prependTo(document.body)[0];
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// create initial history entry
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iframe.contentWindow.document.open();
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iframe.contentWindow.document.close();
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if (getState())
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iframe.contentWindow.document.location.hash = getState();
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});
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}
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$window.bind('hashchange', function(e) {
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// Prevent IE 8 from fireing an event twice,
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// one from true event, one from trigger...
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if (!iframe && hash == location.hash || iframe && hash == iframe.contentWindow.document.location.hash)
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return false;
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if ($.browser.msie && parseInt($.browser.version) < 8) {
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hash = iframe.contentWindow.document.location.hash;
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}
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else
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hash = location.hash;
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if (getState())
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states[getState()]();
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else
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// TODO invoke default
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;
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});
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if (!($.browser.msie && parseInt($.browser.version) >= 8)) {
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setInterval(
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($.browser.msie ?
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function() {
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if (hash != iframe.contentWindow.document.location.hash)
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$window.trigger('hashchange');
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} :
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function() {
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if (hash != location.hash)
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$window.trigger('hashchange');
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else
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// Do the history.length check hack for Safari 2
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;
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}
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)
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, 200
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);
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}
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},
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add: function(state, handler) {
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states[state] = handler;
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},
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go: function(state) {
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if (state) {
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if ($.browser.msie && parseInt($.browser.version) < 8) {
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iframe.contentWindow.document.open();
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iframe.contentWindow.document.close();
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iframe.contentWindow.document.location.hash = state;
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}
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location.hash = state;
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$window.trigger('hashchange');
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}
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else
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console.log('TODO do default state');
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}
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}
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};
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$.ui.history = function() {
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var args = Array.prototype.slice.call(arguments, 1);
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$.ui.hmanager[arguments[0]].apply($.ui.hmanager, args);
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};
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})(jQuery);
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