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Merge pull request #1120 from arturadib/localStorage-fix

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Fixes localStorage feature detection
This commit is contained in:
Brendan Dahl 2012-02-03 11:22:50 -08:00
commit c7c8f1cafa
1 changed files with 12 additions and 3 deletions
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15
web/viewer.js
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@ -88,16 +88,19 @@ var FirefoxCom = (function FirefoxComClosure() {
})();
// Settings Manager - This is a utility for saving settings
// First we see if localStorage is available, FF bug #495747
// First we see if localStorage is available
// If not, we use FUEL in FF
var Settings = (function SettingsClosure() {
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 {
localStorage;
return 'localStorage' in window && window['localStorage'] !== null &&
localStorage;
} catch (e) {
return false;
}
return true;
})();
var isFirefoxExtension = PDFJS.isFirefoxExtension;
@ -134,6 +137,9 @@ var Settings = (function SettingsClosure() {
Settings.prototype = {
set: function settingsSet(name, val) {
if (!('file' in this))
return false;
var file = this.file;
file[name] = val;
var database = JSON.stringify(this.database);
@ -144,6 +150,9 @@ var Settings = (function SettingsClosure() {
},
get: function settingsGet(name, defaultValue) {
if (!('file' in this))
return defaultValue;
return this.file[name] || defaultValue;
}
};