Merge pull request #3757 from Snuffleupagus/move-Settings
Move Settings from viewer.js to its own file
This commit is contained in:
Tim van der Meij
commit
0cd4874df6
125
web/settings.js
Normal file
125
web/settings.js
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@ -0,0 +1,125 @@
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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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/* Copyright 2012 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* globals PDFJS, SETTINGS_MEMORY */
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'use strict';
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/**
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* Settings Manager - This is a utility for saving settings.
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*
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* The way that settings are stored depends on how PDF.js is built,
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* for 'node make <flag>' the following cases exist:
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* - FIREFOX or MOZCENTRAL - uses about:config.
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* - B2G - uses asyncStorage.
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* - GENERIC or CHROME - uses localStorage, if it is available.
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*/
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var Settings = (function SettingsClosure() {
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//#if !(FIREFOX || MOZCENTRAL || B2G)
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var isLocalStorageEnabled = (function localStorageEnabledTest() {
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// Feature test as per http://diveintohtml5.info/storage.html
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// The additional localStorage call is to get around a FF quirk, see
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// bug #495747 in bugzilla
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try {
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return ('localStorage' in window && window['localStorage'] !== null &&
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localStorage);
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} catch (e) {
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return false;
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}
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})();
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//#endif
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function Settings(fingerprint) {
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this.fingerprint = fingerprint;
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this.initializedPromise = new PDFJS.Promise();
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var resolvePromise = (function settingsResolvePromise(db) {
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this.initialize(db || '{}');
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this.initializedPromise.resolve();
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}).bind(this);
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//#if B2G
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// asyncStorage.getItem('database', resolvePromise);
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//#endif
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//#if FIREFOX || MOZCENTRAL
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// resolvePromise(FirefoxCom.requestSync('getDatabase', null));
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//#endif
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//#if !(FIREFOX || MOZCENTRAL || B2G)
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if (isLocalStorageEnabled) {
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resolvePromise(localStorage.getItem('database'));
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}
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//#endif
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}
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Settings.prototype = {
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initialize: function settingsInitialize(database) {
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database = JSON.parse(database);
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if (!('files' in database)) {
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database.files = [];
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}
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if (database.files.length >= SETTINGS_MEMORY) {
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database.files.shift();
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}
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var index;
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for (var i = 0, length = database.files.length; i < length; i++) {
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var branch = database.files[i];
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if (branch.fingerprint === this.fingerprint) {
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index = i;
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break;
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}
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}
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if (typeof index !== 'number') {
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index = database.files.push({fingerprint: this.fingerprint}) - 1;
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}
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this.file = database.files[index];
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this.database = database;
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},
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set: function settingsSet(name, val) {
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if (!this.initializedPromise.isResolved) {
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return;
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}
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var file = this.file;
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file[name] = val;
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var database = JSON.stringify(this.database);
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//#if B2G
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// asyncStorage.setItem('database', database);
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//#endif
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//#if FIREFOX || MOZCENTRAL
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// FirefoxCom.requestSync('setDatabase', database);
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//#endif
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//#if !(FIREFOX || MOZCENTRAL || B2G)
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if (isLocalStorageEnabled) {
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localStorage.setItem('database', database);
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}
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//#endif
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},
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get: function settingsGet(name, defaultValue) {
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if (!this.initializedPromise.isResolved) {
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return defaultValue;
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}
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return this.file[name] || defaultValue;
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}
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};
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return Settings;
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})();
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@ -60,6 +60,7 @@ limitations under the License.
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<!--#if !PRODUCTION-->
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<script type="text/javascript" src="ui_utils.js"></script>
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<script type="text/javascript" src="download_manager.js"></script>
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<script type="text/javascript" src="settings.js"></script>
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<script type="text/javascript" src="page_view.js"></script>
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<script type="text/javascript" src="thumbnail_view.js"></script>
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<script type="text/javascript" src="text_layer_builder.js"></script>
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@ -17,7 +17,7 @@
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/* globals PDFJS, PDFBug, FirefoxCom, Stats, Cache, PDFFindBar, CustomStyle,
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PDFFindController, ProgressBar, TextLayerBuilder, DownloadManager,
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getFileName, getOutputScale, scrollIntoView, getPDFFileNameFromURL,
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PDFHistory, PageView, ThumbnailView, noContextMenuHandler,
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PDFHistory, Settings, PageView, ThumbnailView, noContextMenuHandler,
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SecondaryToolbar, PasswordPrompt, PresentationMode */
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'use strict';
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@ -64,105 +64,10 @@ var mozL10n = document.mozL10n || document.webL10n;
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//#include firefoxcom.js
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//#endif
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// Settings Manager - This is a utility for saving settings
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// First we see if localStorage is available
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// If not, we use FUEL in FF
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// Use asyncStorage for B2G
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var Settings = (function SettingsClosure() {
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//#if !(FIREFOX || MOZCENTRAL || B2G)
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var isLocalStorageEnabled = (function localStorageEnabledTest() {
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// Feature test as per http://diveintohtml5.info/storage.html
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// The additional localStorage call is to get around a FF quirk, see
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// bug #495747 in bugzilla
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try {
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return 'localStorage' in window && window['localStorage'] !== null &&
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localStorage;
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} catch (e) {
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return false;
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}
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})();
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//#endif
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function Settings(fingerprint) {
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this.fingerprint = fingerprint;
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this.initializedPromise = new PDFJS.Promise();
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var resolvePromise = (function settingsResolvePromise(db) {
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this.initialize(db || '{}');
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this.initializedPromise.resolve();
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}).bind(this);
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//#if B2G
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// asyncStorage.getItem('database', resolvePromise);
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//#endif
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//#if FIREFOX || MOZCENTRAL
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// resolvePromise(FirefoxCom.requestSync('getDatabase', null));
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//#endif
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//#if !(FIREFOX || MOZCENTRAL || B2G)
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if (isLocalStorageEnabled)
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resolvePromise(localStorage.getItem('database'));
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//#endif
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}
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Settings.prototype = {
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initialize: function settingsInitialize(database) {
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database = JSON.parse(database);
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if (!('files' in database))
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database.files = [];
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if (database.files.length >= SETTINGS_MEMORY)
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database.files.shift();
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var index;
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for (var i = 0, length = database.files.length; i < length; i++) {
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var branch = database.files[i];
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if (branch.fingerprint == this.fingerprint) {
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index = i;
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break;
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}
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}
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if (typeof index != 'number')
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index = database.files.push({fingerprint: this.fingerprint}) - 1;
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this.file = database.files[index];
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this.database = database;
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},
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set: function settingsSet(name, val) {
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if (!this.initializedPromise.isResolved)
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return;
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var file = this.file;
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file[name] = val;
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var database = JSON.stringify(this.database);
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//#if B2G
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// asyncStorage.setItem('database', database);
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//#endif
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//#if FIREFOX || MOZCENTRAL
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// FirefoxCom.requestSync('setDatabase', database);
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//#endif
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//#if !(FIREFOX || MOZCENTRAL || B2G)
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if (isLocalStorageEnabled)
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localStorage.setItem('database', database);
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//#endif
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},
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get: function settingsGet(name, defaultValue) {
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if (!this.initializedPromise.isResolved)
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return defaultValue;
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return this.file[name] || defaultValue;
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}
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};
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return Settings;
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})();
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var cache = new Cache(CACHE_SIZE);
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var currentPageNumber = 1;
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//#include settings.js
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//#include pdf_find_bar.js
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//#include pdf_find_controller.js
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//#include pdf_history.js
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