//-----------------------------------------------------------------------
// Copyright (C) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------
// MicrosoftAjaxHistory.js
// Microsoft AJAX Framework Application History.
///
///
Type._registerScript("MicrosoftAjaxHistory.debug.js", ["MicrosoftAjaxComponentModel.debug.js", "MicrosoftAjaxSerialization.debug.js"]);
Sys.HistoryEventArgs = function Sys$HistoryEventArgs(state) {
///
///
var e = Function._validateParams(arguments, [
{name: "state", type: Object}
]);
if (e) throw e;
Sys.HistoryEventArgs.initializeBase(this);
this._state = state;
}
function Sys$HistoryEventArgs$get_state() {
///
if (arguments.length !== 0) throw Error.parameterCount();
return this._state;
}
Sys.HistoryEventArgs.prototype = {
get_state: Sys$HistoryEventArgs$get_state
}
Sys.HistoryEventArgs.registerClass('Sys.HistoryEventArgs', Sys.EventArgs);
Sys.Application._appLoadHandler = null;
Sys.Application._beginRequestHandler = null;
Sys.Application._clientId = null;
Sys.Application._currentEntry = '';
Sys.Application._endRequestHandler = null;
Sys.Application._history = null;
Sys.Application._enableHistory = false;
Sys.Application._historyEnabledInScriptManager = false;
Sys.Application._historyFrame = null;
Sys.Application._historyInitialized = false;
Sys.Application._historyPointIsNew = false;
Sys.Application._ignoreTimer = false;
Sys.Application._initialState = null;
Sys.Application._state = {};
Sys.Application._timerCookie = 0;
Sys.Application._timerHandler = null;
Sys.Application._uniqueId = null;
Sys._Application.prototype.get_stateString = function Sys$_Application$get_stateString() {
///
if (arguments.length !== 0) throw Error.parameterCount();
var hash = null;
if (Sys.Browser.agent === Sys.Browser.Firefox) {
var href = window.location.href;
var hashIndex = href.indexOf('#');
if (hashIndex !== -1) {
hash = href.substring(hashIndex + 1);
}
else {
hash = "";
}
return hash;
}
else {
hash = window.location.hash;
}
if ((hash.length > 0) && (hash.charAt(0) === '#')) {
hash = hash.substring(1);
}
return hash;
};
Sys._Application.prototype.get_enableHistory = function Sys$_Application$get_enableHistory() {
///
if (arguments.length !== 0) throw Error.parameterCount();
return this._enableHistory;
};
Sys._Application.prototype.set_enableHistory = function Sys$_Application$set_enableHistory(value) {
if (this._initialized && !this._initializing) {
throw Error.invalidOperation(Sys.Res.historyCannotEnableHistory);
}
else if (this._historyEnabledInScriptManager && !value) {
throw Error.invalidOperation(Sys.Res.invalidHistorySettingCombination);
}
this._enableHistory = value;
};
Sys._Application.prototype.add_navigate = function Sys$_Application$add_navigate(handler) {
///
///
var e = Function._validateParams(arguments, [
{name: "handler", type: Function}
]);
if (e) throw e;
this.get_events().addHandler("navigate", handler);
};
Sys._Application.prototype.remove_navigate = function Sys$_Application$remove_navigate(handler) {
///
///
var e = Function._validateParams(arguments, [
{name: "handler", type: Function}
]);
if (e) throw e;
this.get_events().removeHandler("navigate", handler);
};
Sys._Application.prototype.addHistoryPoint = function Sys$_Application$addHistoryPoint(state, title) {
///
///
///
var e = Function._validateParams(arguments, [
{name: "state", type: Object},
{name: "title", type: String, mayBeNull: true, optional: true}
]);
if (e) throw e;
if (!this._enableHistory) throw Error.invalidOperation(Sys.Res.historyCannotAddHistoryPointWithHistoryDisabled);
for (var n in state) {
var v = state[n];
var t = typeof(v);
if ((v !== null) && ((t === 'object') || (t === 'function') || (t === 'undefined'))) {
throw Error.argument('state', Sys.Res.stateMustBeStringDictionary);
}
}
this._ensureHistory();
var initialState = this._state;
for (var key in state) {
var value = state[key];
if (value === null) {
if (typeof(initialState[key]) !== 'undefined') {
delete initialState[key];
}
}
else {
initialState[key] = value;
}
}
var entry = this._serializeState(initialState);
this._historyPointIsNew = true;
this._setState(entry, title);
this._raiseNavigate();
};
Sys._Application.prototype.setServerId = function Sys$_Application$setServerId(clientId, uniqueId) {
///
///
///
var e = Function._validateParams(arguments, [
{name: "clientId", type: String},
{name: "uniqueId", type: String}
]);
if (e) throw e;
this._clientId = clientId;
this._uniqueId = uniqueId;
};
Sys._Application.prototype.setServerState = function Sys$_Application$setServerState(value) {
///
///
var e = Function._validateParams(arguments, [
{name: "value", type: String}
]);
if (e) throw e;
this._ensureHistory();
this._state.__s = value;
this._updateHiddenField(value);
};
Sys._Application.prototype._deserializeState = function Sys$_Application$_deserializeState(entry) {
var result = {};
entry = entry || '';
var serverSeparator = entry.indexOf('&&');
if ((serverSeparator !== -1) && (serverSeparator + 2 < entry.length)) {
result.__s = entry.substr(serverSeparator + 2);
entry = entry.substr(0, serverSeparator);
}
var tokens = entry.split('&');
for (var i = 0, l = tokens.length; i < l; i++) {
var token = tokens[i];
var equal = token.indexOf('=');
if ((equal !== -1) && (equal + 1 < token.length)) {
var name = token.substr(0, equal);
var value = token.substr(equal + 1);
result[name] = decodeURIComponent(value);
}
}
return result;
};
Sys._Application.prototype._enableHistoryInScriptManager = function Sys$_Application$_enableHistoryInScriptManager() {
this._enableHistory = true;
this._historyEnabledInScriptManager = true;
};
Sys._Application.prototype._ensureHistory = function Sys$_Application$_ensureHistory() {
if (!this._historyInitialized && this._enableHistory) {
if ((Sys.Browser.agent === Sys.Browser.InternetExplorer) &&
((!document.documentMode) || document.documentMode < 8)) {
this._historyFrame = document.getElementById('__historyFrame');
if (!this._historyFrame) throw Error.invalidOperation(Sys.Res.historyMissingFrame);
this._ignoreIFrame = true;
}
this._timerHandler = Function.createDelegate(this, this._onIdle);
this._timerCookie = window.setTimeout(this._timerHandler, 100);
try {
this._initialState = this._deserializeState(this.get_stateString());
} catch(e) {}
this._historyInitialized = true;
}
};
Sys._Application.prototype._navigate = function Sys$_Application$_navigate(entry) {
this._ensureHistory();
var state = this._deserializeState(entry);
if (this._uniqueId) {
var oldServerEntry = this._state.__s || '';
var newServerEntry = state.__s || '';
if (newServerEntry !== oldServerEntry) {
this._updateHiddenField(newServerEntry);
__doPostBack(this._uniqueId, newServerEntry);
this._state = state;
return;
}
}
this._setState(entry);
this._state = state;
this._raiseNavigate();
};
Sys._Application.prototype._onIdle = function Sys$_Application$_onIdle() {
delete this._timerCookie;
var entry = this.get_stateString();
if (entry !== this._currentEntry) {
if (!this._ignoreTimer) {
this._historyPointIsNew = false;
this._navigate(entry);
}
}
else {
this._ignoreTimer = false;
}
this._timerCookie = window.setTimeout(this._timerHandler, 100);
};
Sys._Application.prototype._onIFrameLoad = function Sys$_Application$_onIFrameLoad(entry) {
if ((!document.documentMode) || document.documentMode < 8 ) {
this._ensureHistory();
if (!this._ignoreIFrame) {
this._historyPointIsNew = false;
this._navigate(entry);
}
this._ignoreIFrame = false;
}
};
Sys._Application.prototype._onPageRequestManagerBeginRequest = function Sys$_Application$_onPageRequestManagerBeginRequest(sender, args) {
this._ignoreTimer = true;
this._originalTitle = document.title;
};
Sys._Application.prototype._onPageRequestManagerEndRequest = function Sys$_Application$_onPageRequestManagerEndRequest(sender, args) {
var dataItem = args.get_dataItems()[this._clientId];
var originalTitle = this._originalTitle;
this._originalTitle = null;
var eventTarget = document.getElementById("__EVENTTARGET");
if (eventTarget && eventTarget.value === this._uniqueId) {
eventTarget.value = '';
}
if (typeof(dataItem) !== 'undefined') {
this.setServerState(dataItem);
this._historyPointIsNew = true;
}
else {
this._ignoreTimer = false;
}
var entry = this._serializeState(this._state);
if (entry !== this._currentEntry) {
this._ignoreTimer = true;
if (typeof(originalTitle) === "string") {
if (Sys.Browser.agent !== Sys.Browser.InternetExplorer || Sys.Browser.version > 7) {
var newTitle = document.title;
document.title = originalTitle;
this._setState(entry);
document.title = newTitle;
}
else {
this._setState(entry);
}
this._raiseNavigate();
}
else {
this._setState(entry);
this._raiseNavigate();
}
}
};
Sys._Application.prototype._raiseNavigate = function Sys$_Application$_raiseNavigate() {
var isNew = this._historyPointIsNew;
var h = this.get_events().getHandler("navigate");
var stateClone = {};
for (var key in this._state) {
if (key !== '__s') {
stateClone[key] = this._state[key];
}
}
var args = new Sys.HistoryEventArgs(stateClone);
if (h) {
h(this, args);
}
if (!isNew) {
var err;
try {
if ((Sys.Browser.agent === Sys.Browser.Firefox) && window.location.hash &&
(!window.frameElement || window.top.location.hash)) {
(Sys.Browser.version < 3.5) ?
window.history.go(0) :
location.hash = this.get_stateString();
}
}
catch(err) {
}
}
};
Sys._Application.prototype._serializeState = function Sys$_Application$_serializeState(state) {
var serialized = [];
for (var key in state) {
var value = state[key];
if (key === '__s') {
var serverState = value;
}
else {
if (key.indexOf('=') !== -1) throw Error.argument('state', Sys.Res.stateFieldNameInvalid);
serialized[serialized.length] = key + '=' + encodeURIComponent(value);
}
}
return serialized.join('&') + (serverState ? '&&' + serverState : '');
};
Sys._Application.prototype._setState = function Sys$_Application$_setState(entry, title) {
if (this._enableHistory) {
entry = entry || '';
if (entry !== this._currentEntry) {
if (window.theForm) {
var action = window.theForm.action;
var hashIndex = action.indexOf('#');
window.theForm.action = ((hashIndex !== -1) ? action.substring(0, hashIndex) : action) + '#' + entry;
}
if (this._historyFrame && this._historyPointIsNew) {
var newDiv = document.createElement("div");
newDiv.appendChild(document.createTextNode(title || document.title));
var htmlEncodedTitle = newDiv.innerHTML;
this._ignoreIFrame = true;
var frameDoc = this._historyFrame.contentWindow.document;
frameDoc.open("javascript:''");
frameDoc.write("" + htmlEncodedTitle +
"parent.Sys.Application._onIFrameLoad(" +
Sys.Serialization.JavaScriptSerializer.serialize(entry) +
");");
frameDoc.close();
}
this._ignoreTimer = false;
this._currentEntry = entry;
if (this._historyFrame || this._historyPointIsNew) {
var currentHash = this.get_stateString();
if (entry !== currentHash) {
var loc = document.location;
if (loc.href.length - loc.hash.length + entry.length > 2048) {
throw Error.invalidOperation(String.format(Sys.Res.urlTooLong, 2048));
}
window.location.hash = entry;
this._currentEntry = this.get_stateString();
if ((typeof(title) !== 'undefined') && (title !== null)) {
document.title = title;
}
}
}
this._historyPointIsNew = false;
}
}
};
Sys._Application.prototype._updateHiddenField = function Sys$_Application$_updateHiddenField(value) {
if (this._clientId) {
var serverStateField = document.getElementById(this._clientId);
if (serverStateField) {
serverStateField.value = value;
}
}
};