/*
* jQuery history plugin
*
* The MIT License
*
* Copyright (c) 2006-2009 Taku Sano (Mikage Sawatari)
* Copyright (c) 2010 Takayuki Miwa
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
(function($) {
var locationWrapper = {
put: function(hash, win) {
(win || window).location.hash = hash;//this.encoder(hash);
},
get: function(win) {
var hash = ((win || window).location.hash).replace(/^#/, '');
try {
return $.browser.mozilla ? hash : decodeURIComponent(hash);
}
catch (error) {
return hash;
}
},
encoder: encodeURIComponent
};
var iframeWrapper = {
id: "__jQuery_history",
init: function() {
var html = '<iframe id="'+ this.id +'" style="display:none" src="javascript:false;" />';
$("body").prepend(html);
return this;
},
_document: function() {
return $("#"+ this.id)[0].contentWindow.document;
},
put: function(hash) {
var doc = this._document();
doc.open();
doc.close();
locationWrapper.put(hash, doc);
},
get: function() {
return locationWrapper.get(this._document());
}
};
var historyWrapper = {
put: function(hash, prependWebPath) {
history.pushState(hash, null, (prependWebPath ? ET.webPath + "/" : "") + hash);//location.hash = hash;//this.encoder(hash);
},
get: function(state) {
console.log(state);
},
encoder: encodeURIComponent
};
function initObjects(options) {
options = $.extend({
unescape: false
}, options || {});
locationWrapper.encoder = encoder(options.unescape);
function encoder(unescape_) {
if(unescape_ === true) {
return function(hash){ return hash; };
}
if(typeof unescape_ == "string" &&
(unescape_ = partialDecoder(unescape_.split("")))
|| typeof unescape_ == "function") {
return function(hash) { return unescape_(encodeURIComponent(hash)); };
}
return encodeURIComponent;
}
function partialDecoder(chars) {
var re = new RegExp($.map(chars, encodeURIComponent).join("|"), "ig");
return function(enc) { return enc.replace(re, decodeURIComponent); };
}
}
var implementations = {};
implementations.base = {
callback: undefined,
type: undefined,
check: function() {},
load: function(hash) {},
init: function(options) {
initObjects(options);
self.callback = function(hash) {
$.event.trigger("statechange", [hash]);
};
self._options = options;
self._init();
},
_init: function() {},
_options: {}
};
implementations.timer = {
_appState: undefined,
_init: function() {
var current_hash = locationWrapper.get();
self._appState = current_hash;
self.callback(current_hash);
setInterval(self.check, 100);
},
check: function() {
var current_hash = locationWrapper.get();
if(current_hash != self._appState) {
self._appState = current_hash;
self.callback(current_hash);
}
},
load: function(hash) {
if(hash != self._appState) {
locationWrapper.put(hash);
self._appState = hash;
self.callback(hash);
}
}
};
implementations.iframeTimer = {
_appState: undefined,
_init: function() {
var current_hash = locationWrapper.get();
self._appState = current_hash;
iframeWrapper.init().put(current_hash);
self.callback(current_hash);
setInterval(self.check, 100);
},
check: function() {
var iframe_hash = iframeWrapper.get(),
location_hash = locationWrapper.get();
if (location_hash != iframe_hash) {
if (location_hash == self._appState) { // user used Back or Forward button
self._appState = iframe_hash;
locationWrapper.put(iframe_hash);
self.callback(iframe_hash);
} else { // user loaded new bookmark
self._appState = location_hash;
iframeWrapper.put(location_hash);
self.callback(location_hash);
}
}
},
load: function(hash) {
if(hash != self._appState) {
locationWrapper.put(hash);
iframeWrapper.put(hash);
self._appState = hash;
self.callback(hash);
}
}
};
implementations.hashchangeEvent = {
_init: function() {
self.callback(locationWrapper.get());
$(window).bind('hashchange', self.check);
},
check: function() {
self.callback(locationWrapper.get());
},
load: function(hash) {
locationWrapper.put(hash);
}
};
implementations.historyEvent = {
_appState: undefined,
_init: function() {
//self.callback(historyWrapper.get());
var check = self.check;
$(window).bind('popstate', function(e){
check(e.originalEvent.state);
});
},
check: function(state) {
if (state != self._appState) {
self._appState = state;
self.callback(state);
}
},
load: function(hash, prependBaseURL) {
if (hash != self._appState) {
self._appState = hash;
historyWrapper.put(hash, prependBaseURL);
}
}
};
var self = $.extend({}, implementations.base);
if($.browser.msie && ($.browser.version < 8 || document.documentMode < 8)) {
self.type = 'iframeTimer';
} else if (typeof window.history.pushState != "undefined") {
self.type = 'historyEvent';
} else if("onhashchange" in window) {
self.type = 'hashchangeEvent';
} else {
self.type = 'timer';
}
$.extend(self, implementations[self.type]);
$.history = self;
})(jQuery);