зеркало из https://github.com/mozilla/gecko-dev.git
Bug 907585 [2/3]: Re-implement message listener registration. r=yoshi
This commit is contained in:
Vicamo Yang
Родитель
1768c769b4
Коммит
7d85caf947
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@ -79,7 +79,6 @@ const RIL_IPC_MOBILECONNECTION_MSG_NAMES = [
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"RIL:SelectNetworkAuto",
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"RIL:SendMMI",
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"RIL:CancelMMI",
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"RIL:RegisterMobileConnectionMsg",
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"RIL:SetCallForwardingOption",
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"RIL:GetCallForwardingOption",
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"RIL:SetCallBarringOption",
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@ -109,19 +108,13 @@ const RIL_IPC_ICCMANAGER_MSG_NAMES = [
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"RIL:IccExchangeAPDU",
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"RIL:IccCloseChannel",
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"RIL:ReadIccContacts",
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"RIL:UpdateIccContact",
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"RIL:RegisterIccMsg"
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"RIL:UpdateIccContact"
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];
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const RIL_IPC_VOICEMAIL_MSG_NAMES = [
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"RIL:RegisterVoicemailMsg",
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"RIL:GetVoicemailInfo"
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];
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const RIL_IPC_CELLBROADCAST_MSG_NAMES = [
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"RIL:RegisterCellBroadcastMsg"
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];
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XPCOMUtils.defineLazyServiceGetter(this, "gPowerManagerService",
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"@mozilla.org/power/powermanagerservice;1",
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"nsIPowerManagerService");
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@ -181,7 +174,16 @@ XPCOMUtils.defineLazyGetter(this, "gMessageManager", function () {
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});
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function RadioInterfaceLayer() {
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gMessageManager.init(this);
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let callback = this._receiveMessage.bind(this);
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gMessageManager.registerMessageListeners("icc",
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RIL_IPC_ICCMANAGER_MSG_NAMES,
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callback);
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gMessageManager.registerMessageListeners("mobileconnection",
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RIL_IPC_MOBILECONNECTION_MSG_NAMES,
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callback);
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gMessageManager.registerMessageListeners("voicemail",
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RIL_IPC_VOICEMAIL_MSG_NAMES,
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callback);
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let options = {
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debug: debugPref,
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@ -216,6 +218,17 @@ RadioInterfaceLayer.prototype = {
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIRadioInterfaceLayer,
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Ci.nsIObserver]),
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_receiveMessage: function _receiveMessage(topic, msg) {
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let clientId = msg.json.clientId || 0;
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let radioInterface = this.getRadioInterface(clientId);
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if (!radioInterface) {
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if (DEBUG) debug("No such radio interface: " + clientId);
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return null;
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}
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return radioInterface.receiveMessage(msg);
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},
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/**
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* nsIObserver interface methods.
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*/
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@ -27,7 +27,20 @@ this.RilMessageManager = {
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIMessageListener,
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Ci.nsIObserver]),
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ril: null,
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topicRegistrationNames: {
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cellbroadcast: "RIL:RegisterCellBroadcastMsg",
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icc: "RIL:RegisterIccMsg",
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mobileconnection: "RIL:RegisterMobileConnectionMsg",
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voicemail: "RIL:RegisterVoicemailMsg",
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},
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/**
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* this.callbacksByName[< A string message name>] = {
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* topic: <A string topic>,
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* callback: <A callback that accepts two parameters -- topic and msg>,
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* }
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*/
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callbacksByName: {},
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// Manage message targets in terms of topic. Only the authorized and
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// registered contents can receive related messages.
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@ -37,55 +50,32 @@ this.RilMessageManager = {
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targetMessageQueue: [],
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ready: false,
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init: function init(ril) {
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this.ril = ril;
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_init: function _init() {
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Services.obs.addObserver(this, "xpcom-shutdown", false);
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Services.obs.addObserver(this, kSysMsgListenerReadyObserverTopic, false);
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this._registerMessageListeners();
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ppmm.addMessageListener("child-process-shutdown", this);
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let callback = this._registerMessageTarget.bind(this);
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for (let topic in this.topicRegistrationNames) {
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let name = this.topicRegistrationNames[topic];
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this.registerMessageListeners(topic, [name], callback);
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}
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},
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_shutdown: function _shutdown() {
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this.ril = null;
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Services.obs.removeObserver(this, "xpcom-shutdown");
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this._unregisterMessageListeners();
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},
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_registerMessageListeners: function _registerMessageListeners() {
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ppmm.addMessageListener("child-process-shutdown", this);
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for (let msgname of RIL_IPC_MOBILECONNECTION_MSG_NAMES) {
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ppmm.addMessageListener(msgname, this);
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for (let name in this.callbacksByName) {
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ppmm.removeMessageListener(name, this);
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}
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for (let msgName of RIL_IPC_ICCMANAGER_MSG_NAMES) {
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ppmm.addMessageListener(msgName, this);
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}
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for (let msgname of RIL_IPC_VOICEMAIL_MSG_NAMES) {
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ppmm.addMessageListener(msgname, this);
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}
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for (let msgname of RIL_IPC_CELLBROADCAST_MSG_NAMES) {
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ppmm.addMessageListener(msgname, this);
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}
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},
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this.callbacksByName = null;
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_unregisterMessageListeners: function _unregisterMessageListeners() {
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ppmm.removeMessageListener("child-process-shutdown", this);
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for (let msgname of RIL_IPC_MOBILECONNECTION_MSG_NAMES) {
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ppmm.removeMessageListener(msgname, this);
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}
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for (let msgName of RIL_IPC_ICCMANAGER_MSG_NAMES) {
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ppmm.removeMessageListener(msgName, this);
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}
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for (let msgname of RIL_IPC_VOICEMAIL_MSG_NAMES) {
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ppmm.removeMessageListener(msgname, this);
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}
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for (let msgname of RIL_IPC_CELLBROADCAST_MSG_NAMES) {
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ppmm.removeMessageListener(msgname, this);
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}
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ppmm = null;
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},
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_registerMessageTarget: function _registerMessageTarget(topic, target) {
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_registerMessageTarget: function _registerMessageTarget(topic, msg) {
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let targets = this.targetsByTopic[topic];
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if (!targets) {
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targets = this.targetsByTopic[topic] = [];
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@ -95,6 +85,7 @@ this.RilMessageManager = {
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}
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}
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let target = msg.target;
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if (targets.indexOf(target) != -1) {
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if (DEBUG) debug("Already registered this target!");
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return;
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@ -188,66 +179,21 @@ this.RilMessageManager = {
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return;
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}
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if (RIL_IPC_MOBILECONNECTION_MSG_NAMES.indexOf(msg.name) != -1) {
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if (!msg.target.assertPermission("mobileconnection")) {
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if (DEBUG) {
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debug("MobileConnection message " + msg.name +
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" from a content process with no 'mobileconnection' privileges.");
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}
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return null;
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}
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} else if (RIL_IPC_ICCMANAGER_MSG_NAMES.indexOf(msg.name) != -1) {
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if (!msg.target.assertPermission("mobileconnection")) {
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if (DEBUG) {
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debug("IccManager message " + msg.name +
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" from a content process with no 'mobileconnection' privileges.");
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}
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return null;
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}
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} else if (RIL_IPC_VOICEMAIL_MSG_NAMES.indexOf(msg.name) != -1) {
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if (!msg.target.assertPermission("voicemail")) {
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if (DEBUG) {
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debug("Voicemail message " + msg.name +
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" from a content process with no 'voicemail' privileges.");
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}
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return null;
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}
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} else if (RIL_IPC_CELLBROADCAST_MSG_NAMES.indexOf(msg.name) != -1) {
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if (!msg.target.assertPermission("cellbroadcast")) {
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if (DEBUG) {
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debug("Cell Broadcast message " + msg.name +
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" from a content process with no 'cellbroadcast' privileges.");
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}
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return null;
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}
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} else {
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let entry = this.callbacksByName[msg.name];
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if (!entry) {
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if (DEBUG) debug("Ignoring unknown message type: " + msg.name);
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return null;
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}
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switch (msg.name) {
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case "RIL:RegisterMobileConnectionMsg":
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this._registerMessageTarget("mobileconnection", msg.target);
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return;
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case "RIL:RegisterIccMsg":
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this._registerMessageTarget("icc", msg.target);
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return;
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case "RIL:RegisterVoicemailMsg":
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this._registerMessageTarget("voicemail", msg.target);
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return;
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case "RIL:RegisterCellBroadcastMsg":
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this._registerMessageTarget("cellbroadcast", msg.target);
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return;
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}
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let clientId = msg.json.clientId || 0;
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let radioInterface = this.ril.getRadioInterface(clientId);
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if (!radioInterface) {
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if (DEBUG) debug("No such radio interface: " + clientId);
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if (entry.topic && !msg.target.assertPermission(entry.topic)) {
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if (DEBUG) {
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debug("Message " + msg.name + " from a content process with no '" +
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entry.topic + "' privileges.");
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}
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return null;
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}
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return radioInterface.receiveMessage(msg);
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return entry.callback(entry.topic, msg);
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},
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/**
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@ -270,6 +216,49 @@ this.RilMessageManager = {
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* Public methods.
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*/
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/**
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* @param topic
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* A string for the topic of the registrating names. Also the
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* permission to listen messages of these names.
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* @param names
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* An array of string message names to listen.
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* @param callback
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* A callback that accepts two parameters -- topic and msg.
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*/
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registerMessageListeners: function registerMessageListeners(topic, names,
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callback) {
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for (let name of names) {
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if (this.callbacksByName[name]) {
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if (DEBUG) {
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debug("Message name '" + name + "' was already registered. Ignored.");
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}
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continue;
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}
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this.callbacksByName[name] = { topic: topic, callback: callback };
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ppmm.addMessageListener(name, this);
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}
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},
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/**
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* Remove all listening names with specified callback.
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*
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* @param callback
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* The callback previously registered for messages.
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*/
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unregisterMessageListeners: function unregisterMessageListeners(callback) {
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let remains = {};
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for (let name in this.callbacksByName) {
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let entry = this.callbacksByName[name];
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if (entry.callback != callback) {
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remains[name] = entry;
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} else {
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ppmm.removeMessageListener(name, this);
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}
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}
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this.callbacksByName = remains;
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},
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sendMobileConnectionMessage: function sendMobileConnectionMessage(name, clientId, data) {
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this._sendTargetMessage("mobileconnection", name, {
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clientId: clientId,
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@ -299,4 +288,6 @@ this.RilMessageManager = {
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}
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};
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RilMessageManager._init();
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this.EXPORTED_SYMBOLS = ["RilMessageManager"];
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