mirror of
https://github.com/salesagility/SuiteCRM.git
synced 2024-11-22 16:02:36 +00:00
810 lines
28 KiB
JavaScript
Executable File
810 lines
28 KiB
JavaScript
Executable File
/*
|
|
Copyright (c) 2011, Yahoo! Inc. All rights reserved.
|
|
Code licensed under the BSD License:
|
|
http://developer.yahoo.com/yui/license.html
|
|
version: 2.9.1
|
|
*/
|
|
/**
|
|
* The Browser History Manager provides the ability to use the back/forward
|
|
* navigation buttons in a DHTML application. It also allows a DHTML
|
|
* application to be bookmarked in a specific state.
|
|
*
|
|
* This library requires the following static markup:
|
|
*
|
|
* <iframe id="yui-history-iframe" src="path-to-real-asset-in-same-domain"></iframe>
|
|
* <input id="yui-history-field" type="hidden">
|
|
*
|
|
* @module history
|
|
* @requires yahoo,event
|
|
* @namespace YAHOO.util
|
|
* @title Browser History Manager
|
|
*/
|
|
|
|
/**
|
|
* The History class provides the ability to use the back/forward navigation
|
|
* buttons in a DHTML application. It also allows a DHTML application to
|
|
* be bookmarked in a specific state.
|
|
*
|
|
* @class History
|
|
* @constructor
|
|
*/
|
|
YAHOO.util.History = (function () {
|
|
|
|
/**
|
|
* Our hidden IFrame used to store the browsing history.
|
|
*
|
|
* @property _histFrame
|
|
* @type HTMLIFrameElement
|
|
* @default null
|
|
* @private
|
|
*/
|
|
var _histFrame = null;
|
|
|
|
/**
|
|
* INPUT field (with type="hidden" or type="text") or TEXTAREA.
|
|
* This field keeps the value of the initial state, current state
|
|
* the list of all states across pages within a single browser session.
|
|
*
|
|
* @property _stateField
|
|
* @type HTMLInputElement|HTMLTextAreaElement
|
|
* @default null
|
|
* @private
|
|
*/
|
|
var _stateField = null;
|
|
|
|
/**
|
|
* Flag used to tell whether YAHOO.util.History.initialize has been called.
|
|
*
|
|
* @property _initialized
|
|
* @type boolean
|
|
* @default false
|
|
* @private
|
|
*/
|
|
var _initialized = false;
|
|
|
|
/**
|
|
* List of registered modules.
|
|
*
|
|
* @property _modules
|
|
* @type array
|
|
* @default []
|
|
* @private
|
|
*/
|
|
var _modules = [];
|
|
|
|
/**
|
|
* List of fully qualified states. This is used only by Safari.
|
|
*
|
|
* @property _fqstates
|
|
* @type array
|
|
* @default []
|
|
* @private
|
|
*/
|
|
var _fqstates = [];
|
|
|
|
/**
|
|
* location.hash is a bit buggy on Opera. I have seen instances where
|
|
* navigating the history using the back/forward buttons, and hence
|
|
* changing the URL, would not change location.hash. That's ok, the
|
|
* implementation of an equivalent is trivial.
|
|
*
|
|
* @method _getHash
|
|
* @return {string} The hash portion of the document's location
|
|
* @private
|
|
*/
|
|
function _getHash() {
|
|
var i, href;
|
|
href = self.location.href;
|
|
i = href.indexOf("#");
|
|
return i >= 0 ? href.substr(i + 1) : null;
|
|
}
|
|
|
|
/**
|
|
* Stores all the registered modules' initial state and current state.
|
|
* On Safari, we also store all the fully qualified states visited by
|
|
* the application within a single browser session. The storage takes
|
|
* place in the form field specified during initialization.
|
|
*
|
|
* @method _storeStates
|
|
* @private
|
|
*/
|
|
function _storeStates() {
|
|
|
|
var moduleName, moduleObj, initialStates = [], currentStates = [];
|
|
|
|
for (moduleName in _modules) {
|
|
if (YAHOO.lang.hasOwnProperty(_modules, moduleName)) {
|
|
moduleObj = _modules[moduleName];
|
|
initialStates.push(moduleName + "=" + moduleObj.initialState);
|
|
currentStates.push(moduleName + "=" + moduleObj.currentState);
|
|
}
|
|
}
|
|
|
|
_stateField.value = initialStates.join("&") + "|" + currentStates.join("&");
|
|
}
|
|
|
|
/**
|
|
* Sets the new currentState attribute of all modules depending on the new
|
|
* fully qualified state. Also notifies the modules which current state has
|
|
* changed.
|
|
*
|
|
* @method _handleFQStateChange
|
|
* @param {string} fqstate Fully qualified state
|
|
* @private
|
|
*/
|
|
function _handleFQStateChange(fqstate) {
|
|
|
|
var i, len, moduleName, moduleObj, modules, states, tokens, currentState;
|
|
|
|
if (!fqstate) {
|
|
// Notifies all modules
|
|
for (moduleName in _modules) {
|
|
if (YAHOO.lang.hasOwnProperty(_modules, moduleName)) {
|
|
moduleObj = _modules[moduleName];
|
|
moduleObj.currentState = moduleObj.initialState;
|
|
moduleObj.onStateChange(_decode(moduleObj.currentState));
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
modules = [];
|
|
states = fqstate.split("&");
|
|
for (i = 0, len = states.length; i < len; i++) {
|
|
tokens = states[i].split("=");
|
|
if (tokens.length === 2) {
|
|
moduleName = tokens[0];
|
|
currentState = tokens[1];
|
|
modules[moduleName] = currentState;
|
|
}
|
|
}
|
|
|
|
for (moduleName in _modules) {
|
|
if (YAHOO.lang.hasOwnProperty(_modules, moduleName)) {
|
|
moduleObj = _modules[moduleName];
|
|
currentState = modules[moduleName];
|
|
if (!currentState || moduleObj.currentState !== currentState) {
|
|
moduleObj.currentState = typeof currentState === 'undefined' ? moduleObj.initialState : currentState;
|
|
moduleObj.onStateChange(_decode(moduleObj.currentState));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update the IFrame with our new state.
|
|
*
|
|
* @method _updateIFrame
|
|
* @private
|
|
* @return {boolean} true if successful. false otherwise.
|
|
*/
|
|
function _updateIFrame (fqstate) {
|
|
|
|
var html, doc;
|
|
|
|
html = '<html><body><div id="state">' +
|
|
YAHOO.lang.escapeHTML(fqstate) +
|
|
'</div></body></html>';
|
|
|
|
try {
|
|
doc = _histFrame.contentWindow.document;
|
|
doc.open();
|
|
doc.write(html);
|
|
doc.close();
|
|
return true;
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Periodically checks whether our internal IFrame is ready to be used.
|
|
*
|
|
* @method _checkIframeLoaded
|
|
* @private
|
|
*/
|
|
function _checkIframeLoaded() {
|
|
|
|
var doc, elem, fqstate, hash;
|
|
|
|
if (!_histFrame.contentWindow || !_histFrame.contentWindow.document) {
|
|
// Check again in 10 msec...
|
|
setTimeout(_checkIframeLoaded, 10);
|
|
return;
|
|
}
|
|
|
|
// Start the thread that will have the responsibility to
|
|
// periodically check whether a navigate operation has been
|
|
// requested on the main window. This will happen when
|
|
// YAHOO.util.History.navigate has been called or after
|
|
// the user has hit the back/forward button.
|
|
|
|
doc = _histFrame.contentWindow.document;
|
|
elem = doc.getElementById("state");
|
|
// We must use innerText, and not innerHTML because our string contains
|
|
// the "&" character (which would end up being escaped as "&") and
|
|
// the string comparison would fail...
|
|
fqstate = elem ? elem.innerText : null;
|
|
|
|
hash = _getHash();
|
|
|
|
setInterval(function () {
|
|
|
|
var newfqstate, states, moduleName, moduleObj, newHash, historyLength;
|
|
|
|
doc = _histFrame.contentWindow.document;
|
|
elem = doc.getElementById("state");
|
|
// See my comment above about using innerText instead of innerHTML...
|
|
newfqstate = elem ? elem.innerText : null;
|
|
|
|
newHash = _getHash();
|
|
|
|
if (newfqstate !== fqstate) {
|
|
|
|
fqstate = newfqstate;
|
|
_handleFQStateChange(fqstate);
|
|
|
|
if (!fqstate) {
|
|
states = [];
|
|
for (moduleName in _modules) {
|
|
if (YAHOO.lang.hasOwnProperty(_modules, moduleName)) {
|
|
moduleObj = _modules[moduleName];
|
|
states.push(moduleName + "=" + moduleObj.initialState);
|
|
}
|
|
}
|
|
newHash = states.join("&");
|
|
} else {
|
|
newHash = fqstate;
|
|
}
|
|
|
|
// Allow the state to be bookmarked by setting the top window's
|
|
// URL fragment identifier. Note that here, we are on IE, and
|
|
// IE does not touch the browser history when setting the hash
|
|
// (unlike all the other browsers). I used to write:
|
|
// self.location.replace( "#" + hash );
|
|
// but this had a side effect when the page was not the top frame.
|
|
self.location.hash = newHash;
|
|
hash = newHash;
|
|
|
|
_storeStates();
|
|
|
|
} else if (newHash !== hash) {
|
|
|
|
// The hash has changed. The user might have clicked on a link,
|
|
// or modified the URL directly, or opened the same application
|
|
// bookmarked in a specific state using a bookmark. However, we
|
|
// know the hash change was not caused by a hit on the back or
|
|
// forward buttons, or by a call to navigate() (because it would
|
|
// have been handled above) We must handle these cases, which is
|
|
// why we also need to keep track of hash changes on IE!
|
|
|
|
// Note that IE6 has some major issues with this kind of user
|
|
// interaction (the history stack gets completely messed up)
|
|
// but it seems to work fine on IE7.
|
|
|
|
hash = newHash;
|
|
|
|
// Now, store a new history entry. The following will cause the
|
|
// code above to execute, doing all the dirty work for us...
|
|
_updateIFrame(newHash);
|
|
}
|
|
|
|
}, 50);
|
|
|
|
_initialized = true;
|
|
YAHOO.util.History.onLoadEvent.fire();
|
|
}
|
|
|
|
/**
|
|
* Finish up the initialization of the Browser History Manager.
|
|
*
|
|
* @method _initialize
|
|
* @private
|
|
*/
|
|
function _initialize() {
|
|
|
|
var i, len, parts, tokens, moduleName, moduleObj, initialStates, initialState, currentStates, currentState, counter, hash;
|
|
|
|
// Decode the content of our storage field...
|
|
parts = _stateField.value.split("|");
|
|
|
|
if (parts.length > 1) {
|
|
|
|
initialStates = parts[0].split("&");
|
|
for (i = 0, len = initialStates.length; i < len; i++) {
|
|
tokens = initialStates[i].split("=");
|
|
if (tokens.length === 2) {
|
|
moduleName = tokens[0];
|
|
initialState = tokens[1];
|
|
|
|
moduleObj = YAHOO.lang.hasOwnProperty(_modules, moduleName)
|
|
&& _modules[moduleName];
|
|
|
|
if (moduleObj) {
|
|
moduleObj.initialState = initialState;
|
|
}
|
|
}
|
|
}
|
|
|
|
currentStates = parts[1].split("&");
|
|
for (i = 0, len = currentStates.length; i < len; i++) {
|
|
tokens = currentStates[i].split("=");
|
|
if (tokens.length >= 2) {
|
|
moduleName = tokens[0];
|
|
currentState = tokens[1];
|
|
|
|
moduleObj = YAHOO.lang.hasOwnProperty(_modules, moduleName)
|
|
&& _modules[moduleName];
|
|
|
|
if (moduleObj) {
|
|
moduleObj.currentState = currentState;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (parts.length > 2) {
|
|
_fqstates = parts[2].split(",");
|
|
}
|
|
|
|
if (YAHOO.env.ua.ie) {
|
|
|
|
if (typeof document.documentMode === "undefined" || document.documentMode < 8) {
|
|
|
|
// IE < 8 or IE8 in quirks mode or IE7 standards mode
|
|
_checkIframeLoaded();
|
|
|
|
} else {
|
|
|
|
// IE8 in IE8 standards mode
|
|
YAHOO.util.Event.on(top, "hashchange",
|
|
function () {
|
|
var hash = _getHash();
|
|
_handleFQStateChange(hash);
|
|
_storeStates();
|
|
});
|
|
|
|
_initialized = true;
|
|
YAHOO.util.History.onLoadEvent.fire();
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
// Start the thread that will have the responsibility to
|
|
// periodically check whether a navigate operation has been
|
|
// requested on the main window. This will happen when
|
|
// YAHOO.util.History.navigate has been called or after
|
|
// the user has hit the back/forward button.
|
|
|
|
// On Gecko and Opera, we just need to watch the hash...
|
|
hash = _getHash();
|
|
|
|
setInterval(function () {
|
|
|
|
var state, newHash, newCounter;
|
|
|
|
newHash = _getHash();
|
|
if (newHash !== hash) {
|
|
hash = newHash;
|
|
_handleFQStateChange(hash);
|
|
_storeStates();
|
|
}
|
|
|
|
}, 50);
|
|
|
|
_initialized = true;
|
|
YAHOO.util.History.onLoadEvent.fire();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wrapper around <code>decodeURIComponent()</code> that also converts +
|
|
* chars into spaces.
|
|
*
|
|
* @method _decode
|
|
* @param {String} string string to decode
|
|
* @return {String} decoded string
|
|
* @private
|
|
* @since 2.9.1
|
|
*/
|
|
function _decode(string) {
|
|
return decodeURIComponent(string.replace(/\+/g, ' '));
|
|
}
|
|
|
|
/**
|
|
* Wrapper around <code>encodeURIComponent()</code> that converts spaces to
|
|
* + chars.
|
|
*
|
|
* @method _encode
|
|
* @param {String} string string to encode
|
|
* @return {String} encoded string
|
|
* @private
|
|
* @since 2.9.1
|
|
*/
|
|
function _encode(string) {
|
|
return encodeURIComponent(string).replace(/%20/g, '+');
|
|
}
|
|
|
|
return {
|
|
|
|
/**
|
|
* Fired when the Browser History Manager is ready. If you subscribe to
|
|
* this event after the Browser History Manager has been initialized,
|
|
* it will not fire. Therefore, it is recommended to use the onReady
|
|
* method instead.
|
|
*
|
|
* @event onLoadEvent
|
|
* @see onReady
|
|
*/
|
|
onLoadEvent: new YAHOO.util.CustomEvent("onLoad"),
|
|
|
|
/**
|
|
* Executes the supplied callback when the Browser History Manager is
|
|
* ready. This will execute immediately if called after the Browser
|
|
* History Manager onLoad event has fired.
|
|
*
|
|
* @method onReady
|
|
* @param {function} fn what to execute when the Browser History Manager is ready.
|
|
* @param {object} obj an optional object to be passed back as a parameter to fn.
|
|
* @param {boolean|object} overrideContext If true, the obj passed in becomes fn's execution scope.
|
|
* @see onLoadEvent
|
|
*/
|
|
onReady: function (fn, obj, overrideContext) {
|
|
|
|
if (_initialized) {
|
|
|
|
setTimeout(function () {
|
|
var ctx = window;
|
|
if (overrideContext) {
|
|
if (overrideContext === true) {
|
|
ctx = obj;
|
|
} else {
|
|
ctx = overrideContext;
|
|
}
|
|
}
|
|
fn.call(ctx, "onLoad", [], obj);
|
|
}, 0);
|
|
|
|
} else {
|
|
|
|
YAHOO.util.History.onLoadEvent.subscribe(fn, obj, overrideContext);
|
|
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Registers a new module.
|
|
*
|
|
* @method register
|
|
* @param {string} module Non-empty string uniquely identifying the
|
|
* module you wish to register.
|
|
* @param {string} initialState The initial state of the specified
|
|
* module corresponding to its earliest history entry.
|
|
* @param {function} onStateChange Callback called when the
|
|
* state of the specified module has changed.
|
|
* @param {object} obj An arbitrary object that will be passed as a
|
|
* parameter to the handler.
|
|
* @param {boolean} overrideContext If true, the obj passed in becomes the
|
|
* execution scope of the listener.
|
|
*/
|
|
register: function (module, initialState, onStateChange, obj, overrideContext) {
|
|
|
|
var scope, wrappedFn;
|
|
|
|
if (typeof module !== "string" || YAHOO.lang.trim(module) === "" ||
|
|
typeof initialState !== "string" ||
|
|
typeof onStateChange !== "function") {
|
|
throw new Error("Missing or invalid argument");
|
|
}
|
|
|
|
if (YAHOO.lang.hasOwnProperty(_modules, module)) {
|
|
// Here, we used to throw an exception. However, users have
|
|
// complained about this behavior, so we now just return.
|
|
return;
|
|
}
|
|
|
|
// Note: A module CANNOT be registered after calling
|
|
// YAHOO.util.History.initialize. Indeed, we set the initial state
|
|
// of each registered module in YAHOO.util.History.initialize.
|
|
// If you could register a module after initializing the Browser
|
|
// History Manager, you would not read the correct state using
|
|
// YAHOO.util.History.getCurrentState when coming back to the
|
|
// page using the back button.
|
|
if (_initialized) {
|
|
throw new Error("All modules must be registered before calling YAHOO.util.History.initialize");
|
|
}
|
|
|
|
// Make sure the strings passed in do not contain our separators "," and "|"
|
|
module = _encode(module);
|
|
initialState = _encode(initialState);
|
|
|
|
// If the user chooses to override the scope, we use the
|
|
// custom object passed in as the execution scope.
|
|
scope = null;
|
|
if (overrideContext === true) {
|
|
scope = obj;
|
|
} else {
|
|
scope = overrideContext;
|
|
}
|
|
|
|
wrappedFn = function (state) {
|
|
return onStateChange.call(scope, state, obj);
|
|
};
|
|
|
|
_modules[module] = {
|
|
name: module,
|
|
initialState: initialState,
|
|
currentState: initialState,
|
|
onStateChange: wrappedFn
|
|
};
|
|
},
|
|
|
|
/**
|
|
* Initializes the Browser History Manager. Call this method
|
|
* from a script block located right after the opening body tag.
|
|
*
|
|
* @method initialize
|
|
* @param {string|HTML Element} stateField <input type="hidden"> used
|
|
* to store application states. Must be in the static markup.
|
|
* @param {string|HTML Element} histFrame IFrame used to store
|
|
* the history (only required on Internet Explorer)
|
|
* @public
|
|
*/
|
|
initialize: function (stateField, histFrame) {
|
|
|
|
if (_initialized) {
|
|
// The browser history manager has already been initialized.
|
|
return;
|
|
}
|
|
|
|
if (YAHOO.env.ua.opera && typeof history.navigationMode !== "undefined") {
|
|
// Disable Opera's fast back/forward navigation mode and puts
|
|
// it in compatible mode. This makes anchor-based history
|
|
// navigation work after the page has been navigated away
|
|
// from and re-activated, at the cost of slowing down
|
|
// back/forward navigation to and from that page.
|
|
history.navigationMode = "compatible";
|
|
}
|
|
|
|
if (typeof stateField === "string") {
|
|
stateField = document.getElementById(stateField);
|
|
}
|
|
|
|
if (!stateField ||
|
|
stateField.tagName.toUpperCase() !== "TEXTAREA" &&
|
|
(stateField.tagName.toUpperCase() !== "INPUT" ||
|
|
stateField.type !== "hidden" &&
|
|
stateField.type !== "text")) {
|
|
throw new Error("Missing or invalid argument");
|
|
}
|
|
|
|
_stateField = stateField;
|
|
|
|
// IE < 8 or IE8 in quirks mode or IE7 standards mode
|
|
if (YAHOO.env.ua.ie && (typeof document.documentMode === "undefined" || document.documentMode < 8)) {
|
|
|
|
if (typeof histFrame === "string") {
|
|
histFrame = document.getElementById(histFrame);
|
|
}
|
|
|
|
if (!histFrame || histFrame.tagName.toUpperCase() !== "IFRAME") {
|
|
throw new Error("Missing or invalid argument");
|
|
}
|
|
|
|
_histFrame = histFrame;
|
|
}
|
|
|
|
// Note that the event utility MUST be included inline in the page.
|
|
// If it gets loaded later (which you may want to do to improve the
|
|
// loading speed of your site), the onDOMReady event never fires,
|
|
// and the history library never gets fully initialized.
|
|
YAHOO.util.Event.onDOMReady(_initialize);
|
|
},
|
|
|
|
/**
|
|
* Call this method when you want to store a new entry in the browser's history.
|
|
*
|
|
* @method navigate
|
|
* @param {string} module Non-empty string representing your module.
|
|
* @param {string} state String representing the new state of the specified module.
|
|
* @return {boolean} Indicates whether the new state was successfully added to the history.
|
|
* @public
|
|
*/
|
|
navigate: function (module, state) {
|
|
|
|
var states;
|
|
|
|
if (typeof module !== "string" || typeof state !== "string") {
|
|
throw new Error("Missing or invalid argument");
|
|
}
|
|
|
|
states = {};
|
|
states[module] = state;
|
|
|
|
return YAHOO.util.History.multiNavigate(states);
|
|
},
|
|
|
|
/**
|
|
* Call this method when you want to store a new entry in the browser's history.
|
|
*
|
|
* @method multiNavigate
|
|
* @param {object} states Associative array of module-state pairs to set simultaneously.
|
|
* @return {boolean} Indicates whether the new state was successfully added to the history.
|
|
* @public
|
|
*/
|
|
multiNavigate: function (states) {
|
|
|
|
var currentStates, moduleName, moduleObj, currentState, fqstate;
|
|
|
|
if (typeof states !== "object") {
|
|
throw new Error("Missing or invalid argument");
|
|
}
|
|
|
|
if (!_initialized) {
|
|
throw new Error("The Browser History Manager is not initialized");
|
|
}
|
|
|
|
for (moduleName in states) {
|
|
if (!YAHOO.lang.hasOwnProperty(_modules, _encode(moduleName))) {
|
|
throw new Error("The following module has not been registered: " + moduleName);
|
|
}
|
|
}
|
|
|
|
// Generate our new full state string mod1=xxx&mod2=yyy
|
|
currentStates = [];
|
|
|
|
for (moduleName in _modules) {
|
|
if (YAHOO.lang.hasOwnProperty(_modules, moduleName)) {
|
|
moduleObj = _modules[moduleName];
|
|
if (YAHOO.lang.hasOwnProperty(states, moduleName)) {
|
|
currentState = states[_decode(moduleName)];
|
|
} else {
|
|
currentState = _decode(moduleObj.currentState);
|
|
}
|
|
|
|
// Make sure the strings passed in do not contain our separators "," and "|"
|
|
moduleName = _encode(moduleName);
|
|
currentState = _encode(currentState);
|
|
|
|
currentStates.push(moduleName + "=" + currentState);
|
|
}
|
|
}
|
|
|
|
fqstate = currentStates.join("&");
|
|
|
|
if (YAHOO.env.ua.ie && (typeof document.documentMode === "undefined" || document.documentMode < 8)) {
|
|
|
|
return _updateIFrame(fqstate);
|
|
|
|
} else {
|
|
|
|
// Known bug: On Safari 1.x and 2.0, if you have tab browsing
|
|
// enabled, Safari will show an endless loading icon in the
|
|
// tab. This has apparently been fixed in recent WebKit builds.
|
|
// One work around found by Dav Glass is to submit a form that
|
|
// points to the same document. This indeed works on Safari 1.x
|
|
// and 2.0 but creates bigger problems on WebKit. So for now,
|
|
// we'll consider this an acceptable bug, and hope that Apple
|
|
// comes out with their next version of Safari very soon.
|
|
self.location.hash = fqstate;
|
|
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Returns the current state of the specified module.
|
|
*
|
|
* @method getCurrentState
|
|
* @param {string} module Non-empty string representing your module.
|
|
* @return {string} The current state of the specified module.
|
|
* @public
|
|
*/
|
|
getCurrentState: function (module) {
|
|
|
|
var moduleObj;
|
|
|
|
if (typeof module !== "string") {
|
|
throw new Error("Missing or invalid argument");
|
|
}
|
|
|
|
if (!_initialized) {
|
|
throw new Error("The Browser History Manager is not initialized");
|
|
}
|
|
|
|
moduleObj = YAHOO.lang.hasOwnProperty(_modules, module)
|
|
&& _modules[module];
|
|
|
|
if (!moduleObj) {
|
|
throw new Error("No such registered module: " + module);
|
|
}
|
|
|
|
return _decode(moduleObj.currentState);
|
|
},
|
|
|
|
/**
|
|
* Returns the state of a module according to the URL fragment
|
|
* identifier. This method is useful to initialize your modules
|
|
* if your application was bookmarked from a particular state.
|
|
*
|
|
* @method getBookmarkedState
|
|
* @param {string} module Non-empty string representing your module.
|
|
* @return {string} The bookmarked state of the specified module.
|
|
* @public
|
|
*/
|
|
getBookmarkedState: function (module) {
|
|
|
|
var i, len, idx, hash, states, tokens, moduleName;
|
|
|
|
if (typeof module !== "string") {
|
|
throw new Error("Missing or invalid argument");
|
|
}
|
|
|
|
// Use location.href instead of location.hash which is already
|
|
// URL-decoded, which creates problems if the state value
|
|
// contained special characters...
|
|
idx = self.location.href.indexOf("#");
|
|
if (idx >= 0) {
|
|
hash = self.location.href.substr(idx + 1);
|
|
states = hash.split("&");
|
|
for (i = 0, len = states.length; i < len; i++) {
|
|
tokens = states[i].split("=");
|
|
if (tokens.length === 2) {
|
|
moduleName = tokens[0];
|
|
if (moduleName === module) {
|
|
return _decode(tokens[1]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
/**
|
|
* Returns the value of the specified query string parameter.
|
|
* This method is not used internally by the Browser History Manager.
|
|
* However, it is provided here as a helper since many applications
|
|
* using the Browser History Manager will want to read the value of
|
|
* url parameters to initialize themselves.
|
|
*
|
|
* @method getQueryStringParameter
|
|
* @param {string} paramName Name of the parameter we want to look up.
|
|
* @param {string} queryString Optional URL to look at. If not specified,
|
|
* this method uses the URL in the address bar.
|
|
* @return {string} The value of the specified parameter, or null.
|
|
* @public
|
|
*/
|
|
getQueryStringParameter: function (paramName, url) {
|
|
|
|
var i, len, idx, queryString, params, tokens;
|
|
|
|
url = url || self.location.href;
|
|
|
|
idx = url.indexOf("?");
|
|
queryString = idx >= 0 ? url.substr(idx + 1) : url;
|
|
|
|
// Remove the hash if any
|
|
idx = queryString.lastIndexOf("#");
|
|
queryString = idx >= 0 ? queryString.substr(0, idx) : queryString;
|
|
|
|
params = queryString.split("&");
|
|
|
|
for (i = 0, len = params.length; i < len; i++) {
|
|
tokens = params[i].split("=");
|
|
if (tokens.length >= 2) {
|
|
if (tokens[0] === paramName) {
|
|
return _decode(tokens[1]);
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
};
|
|
|
|
})();
|
|
YAHOO.register("history", YAHOO.util.History, {version: "2.9.1", build: "2800"});
|