141 lines
4.5 KiB
JavaScript
141 lines
4.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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this.EXPORTED_SYMBOLS = ["AlarmDB"];
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/* static functions */
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const DEBUG = false;
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function debug(aStr) {
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if (DEBUG)
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dump("AlarmDB: " + aStr + "\n");
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}
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const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/IndexedDBHelper.jsm");
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const ALARMDB_NAME = "alarms";
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const ALARMDB_VERSION = 1;
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const ALARMSTORE_NAME = "alarms";
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this.AlarmDB = function AlarmDB() {
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debug("AlarmDB()");
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}
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AlarmDB.prototype = {
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__proto__: IndexedDBHelper.prototype,
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init: function init() {
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debug("init()");
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this.initDBHelper(ALARMDB_NAME, ALARMDB_VERSION, [ALARMSTORE_NAME]);
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},
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upgradeSchema: function upgradeSchema(aTransaction, aDb,
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aOldVersion, aNewVersion) {
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debug("upgradeSchema()");
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let objStore =
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aDb.createObjectStore(ALARMSTORE_NAME,
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{ keyPath: "id", autoIncrement: true });
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objStore.createIndex("date", "date", { unique: false });
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objStore.createIndex("ignoreTimezone", "ignoreTimezone", { unique: false });
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objStore.createIndex("timezoneOffset", "timezoneOffset", { unique: false });
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objStore.createIndex("data", "data", { unique: false });
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objStore.createIndex("pageURL", "pageURL", { unique: false });
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objStore.createIndex("manifestURL", "manifestURL", { unique: false });
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debug("Created object stores and indexes");
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},
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/**
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* @param aAlarm
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* The record to be added.
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* @param aSuccessCb
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* Callback function to invoke with result ID.
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* @param aErrorCb [optional]
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* Callback function to invoke when there was an error.
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*/
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add: function add(aAlarm, aSuccessCb, aErrorCb) {
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debug("add()");
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this.newTxn("readwrite", ALARMSTORE_NAME, function txnCb(aTxn, aStore) {
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debug("Going to add " + JSON.stringify(aAlarm));
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aStore.put(aAlarm).onsuccess = function setTxnResult(aEvent) {
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aTxn.result = aEvent.target.result;
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debug("Request successful. New record ID: " + aTxn.result);
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};
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}, aSuccessCb, aErrorCb);
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},
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/**
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* @param aId
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* The ID of record to be removed.
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* @param aManifestURL
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* The manifest URL of the app that alarm belongs to.
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* If null, directly remove the ID record; otherwise,
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* need to check if the alarm belongs to this app.
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* @param aSuccessCb
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* Callback function to invoke with result.
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* @param aErrorCb [optional]
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* Callback function to invoke when there was an error.
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*/
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remove: function remove(aId, aManifestURL, aSuccessCb, aErrorCb) {
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debug("remove()");
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this.newTxn("readwrite", ALARMSTORE_NAME, function txnCb(aTxn, aStore) {
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debug("Going to remove " + aId);
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// Look up the existing record and compare the manifestURL
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// to see if the alarm to be removed belongs to this app.
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aStore.get(aId).onsuccess = function doRemove(aEvent) {
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let alarm = aEvent.target.result;
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if (!alarm) {
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debug("Alarm doesn't exist. No need to remove it.");
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return;
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}
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if (aManifestURL && aManifestURL != alarm.manifestURL) {
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debug("Cannot remove the alarm added by other apps.");
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return;
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}
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aStore.delete(aId);
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};
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}, aSuccessCb, aErrorCb);
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},
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/**
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* @param aManifestURL
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* The manifest URL of the app that alarms belong to.
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* If null, directly return all alarms; otherwise,
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* only return the alarms that belong to this app.
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* @param aSuccessCb
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* Callback function to invoke with result array.
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* @param aErrorCb [optional]
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* Callback function to invoke when there was an error.
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*/
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getAll: function getAll(aManifestURL, aSuccessCb, aErrorCb) {
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debug("getAll()");
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this.newTxn("readonly", ALARMSTORE_NAME, function txnCb(aTxn, aStore) {
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if (!aTxn.result) {
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aTxn.result = [];
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}
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let index = aStore.index("manifestURL");
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index.mozGetAll(aManifestURL).onsuccess = function setTxnResult(aEvent) {
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aTxn.result = aEvent.target.result;
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debug("Request successful. Record count: " + aTxn.result.length);
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};
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}, aSuccessCb, aErrorCb);
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}
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};
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