gecko-dev/dom/contacts/fallback/ContactService.jsm

267 строки
9.6 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const DEBUG = false;
function debug(s) { dump("-*- Fallback ContactService component: " + s + "\n"); }
const Cu = Components.utils;
const Cc = Components.classes;
const Ci = Components.interfaces;
this.EXPORTED_SYMBOLS = ["ContactService"];
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "ContactDB",
"resource://gre/modules/ContactDB.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "PhoneNumberUtils",
"resource://gre/modules/PhoneNumberUtils.jsm");
XPCOMUtils.defineLazyServiceGetter(this, "ppmm",
"@mozilla.org/parentprocessmessagemanager;1",
"nsIMessageListenerManager");
/* all exported symbols need to be bound to this on B2G - Bug 961777 */
let ContactService = this.ContactService = {
init: function() {
if (DEBUG) debug("Init");
this._messages = ["Contacts:Find", "Contacts:GetAll", "Contacts:GetAll:SendNow",
"Contacts:Clear", "Contact:Save",
"Contact:Remove", "Contacts:RegisterForMessages",
"child-process-shutdown", "Contacts:GetRevision",
"Contacts:GetCount"];
this._children = [];
this._cursors = new Map();
this._messages.forEach(function(msgName) {
ppmm.addMessageListener(msgName, this);
}.bind(this));
this._db = new ContactDB();
this._db.init();
this.configureSubstringMatching();
Services.obs.addObserver(this, "profile-before-change", false);
Services.prefs.addObserver("ril.lastKnownSimMcc", this, false);
},
observe: function(aSubject, aTopic, aData) {
if (aTopic === 'profile-before-change') {
this._messages.forEach(function(msgName) {
ppmm.removeMessageListener(msgName, this);
}.bind(this));
Services.obs.removeObserver(this, "profile-before-change");
Services.prefs.removeObserver("dom.phonenumber.substringmatching", this);
ppmm = null;
this._messages = null;
if (this._db)
this._db.close();
this._db = null;
this._children = null;
this._cursors = null;
} else if (aTopic === 'nsPref:changed' && aData === "ril.lastKnownSimMcc") {
this.configureSubstringMatching();
}
},
configureSubstringMatching: function() {
let countryName = PhoneNumberUtils.getCountryName();
if (Services.prefs.getPrefType("dom.phonenumber.substringmatching." + countryName) == Ci.nsIPrefBranch.PREF_INT) {
let val = Services.prefs.getIntPref("dom.phonenumber.substringmatching." + countryName);
if (val) {
this._db.enableSubstringMatching(val);
return;
}
}
// if we got here, we dont have a substring setting
// for this country, so disable substring matching
this._db.disableSubstringMatching();
},
assertPermission: function(aMessage, aPerm) {
if (!aMessage.target.assertPermission(aPerm)) {
Cu.reportError("Contacts message " + aMessage.name +
" from a content process with no" + aPerm + " privileges.");
return false;
}
return true;
},
broadcastMessage: function broadcastMessage(aMsgName, aContent) {
this._children.forEach(function(msgMgr) {
msgMgr.sendAsyncMessage(aMsgName, aContent);
});
},
receiveMessage: function(aMessage) {
if (DEBUG) debug("receiveMessage " + aMessage.name);
let mm = aMessage.target;
let msg = aMessage.data;
let cursorList;
switch (aMessage.name) {
case "Contacts:Find":
if (!this.assertPermission(aMessage, "contacts-read")) {
return null;
}
let result = [];
this._db.find(
function(contacts) {
for (let i in contacts) {
result.push(contacts[i]);
}
if (DEBUG) debug("result:" + JSON.stringify(result));
mm.sendAsyncMessage("Contacts:Find:Return:OK", {requestID: msg.requestID, contacts: result});
}.bind(this),
function(aErrorMsg) { mm.sendAsyncMessage("Contacts:Find:Return:KO", { requestID: msg.requestID, errorMsg: aErrorMsg }); }.bind(this),
msg.options.findOptions);
break;
case "Contacts:GetAll":
if (!this.assertPermission(aMessage, "contacts-read")) {
return null;
}
cursorList = this._cursors.get(mm);
if (!cursorList) {
cursorList = [];
this._cursors.set(mm, cursorList);
}
cursorList.push(msg.cursorId);
this._db.getAll(
function(aContacts) {
try {
mm.sendAsyncMessage("Contacts:GetAll:Next", {cursorId: msg.cursorId, contacts: aContacts});
if (aContacts === null) {
let cursorList = this._cursors.get(mm);
let index = cursorList.indexOf(msg.cursorId);
cursorList.splice(index, 1);
}
} catch (e) {
if (DEBUG) debug("Child is dead, DB should stop sending contacts");
throw e;
}
}.bind(this),
function(aErrorMsg) { mm.sendAsyncMessage("Contacts:GetAll:Return:KO", { requestID: msg.cursorId, errorMsg: aErrorMsg }); },
msg.findOptions, msg.cursorId);
break;
case "Contacts:GetAll:SendNow":
// sendNow is a no op if there isn't an existing cursor in the DB, so we
// don't need to assert the permission again.
this._db.sendNow(msg.cursorId);
break;
case "Contact:Save":
if (msg.options.reason === "create") {
if (!this.assertPermission(aMessage, "contacts-create")) {
return null;
}
} else {
if (!this.assertPermission(aMessage, "contacts-write")) {
return null;
}
}
this._db.saveContact(
msg.options.contact,
function() {
mm.sendAsyncMessage("Contact:Save:Return:OK", { requestID: msg.requestID, contactID: msg.options.contact.id });
this.broadcastMessage("Contact:Changed", { contactID: msg.options.contact.id, reason: msg.options.reason });
}.bind(this),
function(aErrorMsg) { mm.sendAsyncMessage("Contact:Save:Return:KO", { requestID: msg.requestID, errorMsg: aErrorMsg }); }.bind(this)
);
break;
case "Contact:Remove":
if (!this.assertPermission(aMessage, "contacts-write")) {
return null;
}
this._db.removeContact(
msg.options.id,
function() {
mm.sendAsyncMessage("Contact:Remove:Return:OK", { requestID: msg.requestID, contactID: msg.options.id });
this.broadcastMessage("Contact:Changed", { contactID: msg.options.id, reason: "remove" });
}.bind(this),
function(aErrorMsg) { mm.sendAsyncMessage("Contact:Remove:Return:KO", { requestID: msg.requestID, errorMsg: aErrorMsg }); }.bind(this)
);
break;
case "Contacts:Clear":
if (!this.assertPermission(aMessage, "contacts-write")) {
return null;
}
this._db.clear(
function() {
mm.sendAsyncMessage("Contacts:Clear:Return:OK", { requestID: msg.requestID });
this.broadcastMessage("Contact:Changed", { reason: "remove" });
}.bind(this),
function(aErrorMsg) {
mm.sendAsyncMessage("Contacts:Clear:Return:KO", { requestID: msg.requestID, errorMsg: aErrorMsg });
}.bind(this)
);
break;
case "Contacts:GetRevision":
if (!this.assertPermission(aMessage, "contacts-read")) {
return null;
}
this._db.getRevision(
function(revision) {
mm.sendAsyncMessage("Contacts:Revision", {
requestID: msg.requestID,
revision: revision
});
},
function(aErrorMsg) {
mm.sendAsyncMessage("Contacts:GetRevision:Return:KO", { requestID: msg.requestID, errorMsg: aErrorMsg });
}.bind(this)
);
break;
case "Contacts:GetCount":
if (!this.assertPermission(aMessage, "contacts-read")) {
return null;
}
this._db.getCount(
function(count) {
mm.sendAsyncMessage("Contacts:Count", {
requestID: msg.requestID,
count: count
});
},
function(aErrorMsg) {
mm.sendAsyncMessage("Contacts:Count:Return:KO", { requestID: msg.requestID, errorMsg: aErrorMsg });
}.bind(this)
);
break;
case "Contacts:RegisterForMessages":
if (!aMessage.target.assertPermission("contacts-read")) {
return null;
}
if (DEBUG) debug("Register!");
if (this._children.indexOf(mm) == -1) {
this._children.push(mm);
}
break;
case "child-process-shutdown":
if (DEBUG) debug("Unregister");
let index = this._children.indexOf(mm);
if (index != -1) {
if (DEBUG) debug("Unregister index: " + index);
this._children.splice(index, 1);
}
cursorList = this._cursors.get(mm);
if (cursorList) {
for (let id of cursorList) {
this._db.clearDispatcher(id);
}
this._cursors.delete(mm);
}
break;
default:
if (DEBUG) debug("WRONG MESSAGE NAME: " + aMessage.name);
}
}
}
ContactService.init();