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Move Settings from viewer.js to its own file

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This commit is contained in:
Jonas Jenwald 2013-10-02 15:55:31 +02:00
parent fc5ed402fb
commit d6ab0c61e8
3 changed files with 118 additions and 97 deletions
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99
web/viewer.js
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@ -17,7 +17,7 @@
/* globals PDFJS, PDFBug, FirefoxCom, Stats, Cache, PDFFindBar, CustomStyle,
PDFFindController, ProgressBar, TextLayerBuilder, DownloadManager,
getFileName, getOutputScale, scrollIntoView, getPDFFileNameFromURL,
PDFHistory, PageView, ThumbnailView, noContextMenuHandler,
PDFHistory, Settings, PageView, ThumbnailView, noContextMenuHandler,
SecondaryToolbar, PasswordPrompt, PresentationMode */
'use strict';
@ -64,105 +64,10 @@ var mozL10n = document.mozL10n || document.webL10n;
//#include firefoxcom.js
//#endif
// Settings Manager - This is a utility for saving settings
// First we see if localStorage is available
// If not, we use FUEL in FF
// Use asyncStorage for B2G
var Settings = (function SettingsClosure() {
//#if !(FIREFOX || MOZCENTRAL || B2G)
var isLocalStorageEnabled = (function localStorageEnabledTest() {
// Feature test as per http://diveintohtml5.info/storage.html
// The additional localStorage call is to get around a FF quirk, see
// bug #495747 in bugzilla
try {
return 'localStorage' in window && window['localStorage'] !== null &&
localStorage;
} catch (e) {
return false;
}
})();
//#endif
function Settings(fingerprint) {
this.fingerprint = fingerprint;
this.initializedPromise = new PDFJS.Promise();
var resolvePromise = (function settingsResolvePromise(db) {
this.initialize(db || '{}');
this.initializedPromise.resolve();
}).bind(this);
//#if B2G
// asyncStorage.getItem('database', resolvePromise);
//#endif
//#if FIREFOX || MOZCENTRAL
// resolvePromise(FirefoxCom.requestSync('getDatabase', null));
//#endif
//#if !(FIREFOX || MOZCENTRAL || B2G)
if (isLocalStorageEnabled)
resolvePromise(localStorage.getItem('database'));
//#endif
}
Settings.prototype = {
initialize: function settingsInitialize(database) {
database = JSON.parse(database);
if (!('files' in database))
database.files = [];
if (database.files.length >= SETTINGS_MEMORY)
database.files.shift();
var index;
for (var i = 0, length = database.files.length; i < length; i++) {
var branch = database.files[i];
if (branch.fingerprint == this.fingerprint) {
index = i;
break;
}
}
if (typeof index != 'number')
index = database.files.push({fingerprint: this.fingerprint}) - 1;
this.file = database.files[index];
this.database = database;
},
set: function settingsSet(name, val) {
if (!this.initializedPromise.isResolved)
return;
var file = this.file;
file[name] = val;
var database = JSON.stringify(this.database);
//#if B2G
// asyncStorage.setItem('database', database);
//#endif
//#if FIREFOX || MOZCENTRAL
// FirefoxCom.requestSync('setDatabase', database);
//#endif
//#if !(FIREFOX || MOZCENTRAL || B2G)
if (isLocalStorageEnabled)
localStorage.setItem('database', database);
//#endif
},
get: function settingsGet(name, defaultValue) {
if (!this.initializedPromise.isResolved)
return defaultValue;
return this.file[name] || defaultValue;
}
};
return Settings;
})();
var cache = new Cache(CACHE_SIZE);
var currentPageNumber = 1;
//#include settings.js
//#include pdf_find_bar.js
//#include pdf_find_controller.js
//#include pdf_history.js