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Support syncing of settings in Chrome extension

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Use chrome.storage.sync to store preferences instead of
chrome.storage.local, to allow settings to be synchronized if the user
chooses to sign in in Chrome and enables synchronization of extension
preferences.
This commit is contained in:
Rob Wu 2016-05-23 15:50:07 +02:00
parent 78359d8b03
commit 0be8e72d6f
4 changed files with 91 additions and 10 deletions
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11
web/chromecom.js
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@ -297,17 +297,22 @@
}
}
// chrome.storage.sync is not supported in every Chromium-derivate.
// Note: The background page takes care of migrating values from
// chrome.storage.local to chrome.storage.sync when needed.
var storageArea = chrome.storage.sync || chrome.storage.local;
Preferences._writeToStorage = function (prefObj) {
return new Promise(function (resolve) {
if (prefObj === Preferences.defaults) {
var keysToRemove = Object.keys(Preferences.defaults);
// If the storage is reset, remove the keys so that the values from
// managed storage are applied again.
chrome.storage.local.remove(keysToRemove, function() {
storageArea.remove(keysToRemove, function() {
resolve();
});
} else {
chrome.storage.local.set(prefObj, function() {
storageArea.set(prefObj, function() {
resolve();
});
}
@ -331,7 +336,7 @@
// Managed storage not supported, e.g. in Opera.
defaultPrefs = Preferences.defaults;
}
chrome.storage.local.get(defaultPrefs, function(readPrefs) {
storageArea.get(defaultPrefs, function(readPrefs) {
resolve(readPrefs);
});
}