/*
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* Copyright (C) 2016 The Android Open Source Project
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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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package com.android.server.webkit;
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import android.os.RemoteException;
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import android.os.ShellCommand;
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import android.webkit.IWebViewUpdateService;
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import java.io.PrintWriter;
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class WebViewUpdateServiceShellCommand extends ShellCommand {
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final IWebViewUpdateService mInterface;
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WebViewUpdateServiceShellCommand(IWebViewUpdateService service) {
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mInterface = service;
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}
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@Override
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public int onCommand(String cmd) {
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if (cmd == null) {
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return handleDefaultCommands(cmd);
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}
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final PrintWriter pw = getOutPrintWriter();
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try {
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switch(cmd) {
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case "set-webview-implementation":
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return setWebViewImplementation();
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case "enable-multiprocess":
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return enableMultiProcess(true);
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case "disable-multiprocess":
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return enableMultiProcess(false);
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default:
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return handleDefaultCommands(cmd);
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}
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} catch (RemoteException e) {
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pw.println("Remote exception: " + e);
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}
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return -1;
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}
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private int setWebViewImplementation() throws RemoteException {
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final PrintWriter pw = getOutPrintWriter();
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String shellChosenPackage = getNextArg();
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if (shellChosenPackage == null) {
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pw.println("Failed to switch, no PACKAGE provided.");
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pw.println("");
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helpSetWebViewImplementation();
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return 1;
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}
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String newPackage = mInterface.changeProviderAndSetting(shellChosenPackage);
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if (shellChosenPackage.equals(newPackage)) {
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pw.println("Success");
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return 0;
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} else {
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pw.println(String.format(
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"Failed to switch to %s, the WebView implementation is now provided by %s.",
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shellChosenPackage, newPackage));
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return 1;
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}
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}
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private int enableMultiProcess(boolean enable) throws RemoteException {
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final PrintWriter pw = getOutPrintWriter();
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mInterface.enableMultiProcess(enable);
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pw.println("Success");
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return 0;
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}
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public void helpSetWebViewImplementation() {
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PrintWriter pw = getOutPrintWriter();
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pw.println(" set-webview-implementation PACKAGE");
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pw.println(" Set the WebView implementation to the specified package.");
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}
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@Override
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public void onHelp() {
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PrintWriter pw = getOutPrintWriter();
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pw.println("WebView updater commands:");
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pw.println(" help");
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pw.println(" Print this help text.");
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pw.println("");
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helpSetWebViewImplementation();
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pw.println(" enable-multiprocess");
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pw.println(" Enable multi-process mode for WebView");
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pw.println(" disable-multiprocess");
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pw.println(" Disable multi-process mode for WebView");
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pw.println();
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}
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}
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