mirror of
https://github.com/classilla/tenfourfox.git
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418 lines
12 KiB
JavaScript
418 lines
12 KiB
JavaScript
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/* Copyright 2012 Mozilla Foundation and Mozilla contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* Copyright © 2013, Deutsche Telekom, Inc. */
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"use strict";
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const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/DOMRequestHelper.jsm");
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XPCOMUtils.defineLazyGetter(this, "NFC", function () {
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let obj = {};
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Cu.import("resource://gre/modules/nfc_consts.js", obj);
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return obj;
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});
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Cu.import("resource://gre/modules/systemlibs.js");
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const NFC_ENABLED = libcutils.property_get("ro.moz.nfc.enabled", "false") === "true";
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// set to true to in nfc_consts.js to see debug messages
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var DEBUG = NFC.DEBUG_CONTENT_HELPER;
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var debug;
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function updateDebug() {
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if (DEBUG || NFC.DEBUG_CONTENT_HELPER) {
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debug = function (s) {
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dump("-*- NfcContentHelper: " + s + "\n");
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};
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} else {
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debug = function (s) {};
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}
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};
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updateDebug();
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const NFCCONTENTHELPER_CID =
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Components.ID("{4d72c120-da5f-11e1-9b23-0800200c9a66}");
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const NFC_IPC_MSG_NAMES = [
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"NFC:ReadNDEFResponse",
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"NFC:WriteNDEFResponse",
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"NFC:MakeReadOnlyResponse",
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"NFC:FormatResponse",
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"NFC:TransceiveResponse",
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"NFC:CheckP2PRegistrationResponse",
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"NFC:DOMEvent",
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"NFC:NotifySendFileStatusResponse",
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"NFC:ChangeRFStateResponse"
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];
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XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
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"@mozilla.org/childprocessmessagemanager;1",
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"nsISyncMessageSender");
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function NfcContentHelper() {
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Services.obs.addObserver(this, "xpcom-shutdown", false);
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this._requestMap = [];
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this.initDOMRequestHelper(/* window */ null, NFC_IPC_MSG_NAMES);
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this.eventListeners = {};
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}
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NfcContentHelper.prototype = {
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__proto__: DOMRequestIpcHelper.prototype,
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QueryInterface: XPCOMUtils.generateQI([Ci.nsINfcContentHelper,
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Ci.nsINfcBrowserAPI,
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Ci.nsISupportsWeakReference,
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Ci.nsIObserver]),
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classID: NFCCONTENTHELPER_CID,
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classInfo: XPCOMUtils.generateCI({
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classID: NFCCONTENTHELPER_CID,
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classDescription: "NfcContentHelper",
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interfaces: [Ci.nsINfcContentHelper,
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Ci.nsINfcBrowserAPI]
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}),
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_requestMap: null,
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eventListeners: null,
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queryRFState: function queryRFState() {
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return cpmm.sendSyncMessage("NFC:QueryInfo")[0].rfState;
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},
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setFocusTab: function setFocusTab(tabId, isFocus) {
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cpmm.sendAsyncMessage("NFC:SetFocusTab", {
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tabId: tabId,
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isFocus: isFocus
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});
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},
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// NFCTag interface
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readNDEF: function readNDEF(sessionToken, callback) {
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let requestId = callback.getCallbackId();
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this._requestMap[requestId] = callback;
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cpmm.sendAsyncMessage("NFC:ReadNDEF", {
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requestId: requestId,
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sessionToken: sessionToken
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});
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},
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writeNDEF: function writeNDEF(records, isP2P, sessionToken, callback) {
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let requestId = callback.getCallbackId();
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this._requestMap[requestId] = callback;
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cpmm.sendAsyncMessage("NFC:WriteNDEF", {
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requestId: requestId,
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sessionToken: sessionToken,
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records: records,
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isP2P: isP2P
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});
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},
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makeReadOnly: function makeReadOnly(sessionToken, callback) {
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let requestId = callback.getCallbackId();
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this._requestMap[requestId] = callback;
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cpmm.sendAsyncMessage("NFC:MakeReadOnly", {
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requestId: requestId,
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sessionToken: sessionToken
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});
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},
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format: function format(sessionToken, callback) {
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let requestId = callback.getCallbackId();
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this._requestMap[requestId] = callback;
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cpmm.sendAsyncMessage("NFC:Format", {
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requestId: requestId,
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sessionToken: sessionToken
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});
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},
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transceive: function transceive(sessionToken, technology, command, callback) {
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let requestId = callback.getCallbackId();
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this._requestMap[requestId] = callback;
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cpmm.sendAsyncMessage("NFC:Transceive", {
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requestId: requestId,
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sessionToken: sessionToken,
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technology: technology,
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command: command
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});
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},
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sendFile: function sendFile(data, sessionToken, callback) {
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let requestId = callback.getCallbackId();
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this._requestMap[requestId] = callback;
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cpmm.sendAsyncMessage("NFC:SendFile", {
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requestId: requestId,
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sessionToken: sessionToken,
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blob: data.blob
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});
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},
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notifySendFileStatus: function notifySendFileStatus(status, requestId) {
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cpmm.sendAsyncMessage("NFC:NotifySendFileStatus", {
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status: status,
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requestId: requestId
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});
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},
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addEventListener: function addEventListener(listener, tabId) {
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let _window = listener.window;
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this.eventListeners[tabId] = listener;
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cpmm.sendAsyncMessage("NFC:AddEventListener", { tabId: tabId });
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},
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removeEventListener: function removeEventListener(tabId) {
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delete this.eventListeners[tabId];
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cpmm.sendAsyncMessage("NFC:RemoveEventListener", { tabId: tabId });
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},
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registerTargetForPeerReady: function registerTargetForPeerReady(appId) {
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cpmm.sendAsyncMessage("NFC:RegisterPeerReadyTarget", { appId: appId });
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},
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unregisterTargetForPeerReady: function unregisterTargetForPeerReady(appId) {
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cpmm.sendAsyncMessage("NFC:UnregisterPeerReadyTarget", { appId: appId });
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},
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checkP2PRegistration: function checkP2PRegistration(appId, callback) {
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let requestId = callback.getCallbackId();
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this._requestMap[requestId] = callback;
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cpmm.sendAsyncMessage("NFC:CheckP2PRegistration", {
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appId: appId,
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requestId: requestId
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});
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},
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notifyUserAcceptedP2P: function notifyUserAcceptedP2P(appId) {
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cpmm.sendAsyncMessage("NFC:NotifyUserAcceptedP2P", {
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appId: appId
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});
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},
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changeRFState: function changeRFState(rfState, callback) {
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let requestId = callback.getCallbackId();
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this._requestMap[requestId] = callback;
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cpmm.sendAsyncMessage("NFC:ChangeRFState",
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{requestId: requestId,
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rfState: rfState});
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},
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callDefaultFoundHandler: function callDefaultFoundHandler(sessionToken,
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isP2P,
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records) {
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cpmm.sendAsyncMessage("NFC:CallDefaultFoundHandler",
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{sessionToken: sessionToken,
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isP2P: isP2P,
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records: records});
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},
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callDefaultLostHandler: function callDefaultLostHandler(sessionToken, isP2P) {
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cpmm.sendAsyncMessage("NFC:CallDefaultLostHandler",
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{sessionToken: sessionToken,
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isP2P: isP2P});
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},
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// nsIObserver
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observe: function observe(subject, topic, data) {
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if (topic == "xpcom-shutdown") {
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this.destroyDOMRequestHelper();
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Services.obs.removeObserver(this, "xpcom-shutdown");
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cpmm = null;
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}
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},
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// nsIMessageListener
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receiveMessage: function receiveMessage(message) {
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DEBUG && debug("Message received: " + JSON.stringify(message));
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let result = message.data;
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switch (message.name) {
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case "NFC:ReadNDEFResponse":
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this.handleReadNDEFResponse(result);
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break;
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case "NFC:CheckP2PRegistrationResponse":
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this.handleCheckP2PRegistrationResponse(result);
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break;
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case "NFC:TransceiveResponse":
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this.handleTransceiveResponse(result);
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break;
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case "NFC:WriteNDEFResponse": // Fall through.
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case "NFC:MakeReadOnlyResponse":
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case "NFC:FormatResponse":
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case "NFC:NotifySendFileStatusResponse":
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case "NFC:ChangeRFStateResponse":
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this.handleGeneralResponse(result);
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break;
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case "NFC:DOMEvent":
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this.handleDOMEvent(result);
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break;
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}
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},
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handleGeneralResponse: function handleGeneralResponse(result) {
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let requestId = result.requestId;
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let callback = this._requestMap[requestId];
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if (!callback) {
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debug("not firing message " + result.type + " for id: " + requestId);
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return;
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}
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delete this._requestMap[requestId];
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if (result.errorMsg) {
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callback.notifyError(result.errorMsg);
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} else {
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callback.notifySuccess();
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}
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},
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handleReadNDEFResponse: function handleReadNDEFResponse(result) {
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let requestId = result.requestId;
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let callback = this._requestMap[requestId];
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if (!callback) {
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debug("not firing message handleReadNDEFResponse for id: " + requestId);
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return;
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}
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delete this._requestMap[requestId];
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if (result.errorMsg) {
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callback.notifyError(result.errorMsg);
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return;
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}
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callback.notifySuccessWithNDEFRecords(result.records);
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},
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handleCheckP2PRegistrationResponse: function handleCheckP2PRegistrationResponse(result) {
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let requestId = result.requestId;
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let callback = this._requestMap[requestId];
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if (!callback) {
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debug("not firing message handleCheckP2PRegistrationResponse for id: " + requestId);
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return;
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}
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delete this._requestMap[requestId];
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// Privilaged status API. Always fire success to avoid using exposed props.
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// The receiver must check the boolean mapped status code to handle.
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callback.notifySuccessWithBoolean(!result.errorMsg);
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},
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handleTransceiveResponse: function handleTransceiveResponse(result) {
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let requestId = result.requestId;
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let callback = this._requestMap[requestId];
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if (!callback) {
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debug("not firing message handleTransceiveResponse for id: " + requestId);
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return;
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}
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delete this._requestMap[requestId];
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if (result.errorMsg) {
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callback.notifyError(result.errorMsg);
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return;
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}
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callback.notifySuccessWithByteArray(result.response);
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},
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handleDOMEvent: function handleDOMEvent(result) {
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let listener = this.eventListeners[result.tabId];
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if (!listener) {
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debug("no listener for tabId " + result.tabId);
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return;
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}
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switch (result.event) {
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case NFC.PEER_EVENT_READY:
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listener.notifyPeerFound(result.sessionToken, /* isPeerReady */ true);
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break;
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case NFC.PEER_EVENT_FOUND:
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listener.notifyPeerFound(result.sessionToken);
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break;
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case NFC.PEER_EVENT_LOST:
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listener.notifyPeerLost(result.sessionToken);
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break;
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case NFC.TAG_EVENT_FOUND:
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let ndefInfo = null;
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if (result.tagType !== undefined &&
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result.maxNDEFSize !== undefined &&
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result.isReadOnly !== undefined &&
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result.isFormatable !== undefined) {
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ndefInfo = new TagNDEFInfo(result.tagType,
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result.maxNDEFSize,
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result.isReadOnly,
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result.isFormatable);
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}
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let tagInfo = new TagInfo(result.techList, result.tagId);
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listener.notifyTagFound(result.sessionToken,
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tagInfo,
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ndefInfo,
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result.records);
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break;
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case NFC.TAG_EVENT_LOST:
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listener.notifyTagLost(result.sessionToken);
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break;
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case NFC.RF_EVENT_STATE_CHANGED:
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listener.notifyRFStateChanged(result.rfState);
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break;
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case NFC.FOCUS_CHANGED:
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listener.notifyFocusChanged(result.focus);
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break;
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}
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}
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};
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function TagNDEFInfo(tagType, maxNDEFSize, isReadOnly, isFormatable) {
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this.tagType = tagType;
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this.maxNDEFSize = maxNDEFSize;
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this.isReadOnly = isReadOnly;
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this.isFormatable = isFormatable;
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}
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TagNDEFInfo.prototype = {
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QueryInterface: XPCOMUtils.generateQI([Ci.nsITagNDEFInfo]),
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tagType: null,
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maxNDEFSize: 0,
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isReadOnly: false,
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isFormatable: false
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};
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function TagInfo(techList, tagId) {
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this.techList = techList;
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this.tagId = tagId;
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}
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TagInfo.prototype = {
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QueryInterface: XPCOMUtils.generateQI([Ci.nsITagInfo]),
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techList: null,
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tagId: null,
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};
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if (NFC_ENABLED) {
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([NfcContentHelper]);
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}
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