// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.android_webview.nonembedded;
import android.app.Application;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.PackageManager;
import com.android.webview.chromium.WebViewLibraryPreloader;
import org.jni_zero.JNINamespace;
import org.jni_zero.NativeMethods;
import org.chromium.android_webview.AwLocaleConfig;
import org.chromium.android_webview.ProductConfig;
import org.chromium.android_webview.common.CommandLineUtil;
import org.chromium.android_webview.common.PlatformServiceBridge;
import org.chromium.android_webview.common.SafeModeController;
import org.chromium.android_webview.nonembedded_util.WebViewPackageHelper;
import org.chromium.android_webview.services.NonembeddedSafeModeActionsList;
import org.chromium.base.ContextUtils;
import org.chromium.base.Log;
import org.chromium.base.PathUtils;
import org.chromium.base.ThreadUtils;
import org.chromium.base.library_loader.LibraryLoader;
import org.chromium.base.library_loader.LibraryProcessType;
import org.chromium.base.metrics.UmaRecorderHolder;
import org.chromium.base.task.PostTask;
import org.chromium.base.task.TaskTraits;
import org.chromium.base.version_info.VersionConstants;
import org.chromium.build.BuildConfig;
import org.chromium.components.crash.CustomAssertionHandler;
import org.chromium.components.crash.PureJavaExceptionHandler;
import org.chromium.components.embedder_support.application.FontPreloadingWorkaround;
import org.chromium.ui.base.ResourceBundle;
/**
* Application subclass for SystemWebView and Trichrome.
*
* Application subclass is used by renderer processes, services, and content providers that run
* under the WebView APK's package.
*
* None of this code runs in an application which simply uses WebView.
*/
@JNINamespace("android_webview")
public class WebViewApkApplication extends Application {
private static final String TAG = "WebViewApkApp";
// Called by the framework for ALL processes. Runs before ContentProviders are created.
//
// Logic here is specific for standalone WebView and trichrome but does not run by
// Monochrome. Common logic between all WebView flavours should be go into
// maybeInitProcessGlobals instead which is called by Monochrome too.
// Quirk: context.getApplicationContext() returns null during this method.
@Override
protected void attachBaseContext(Context context) {
super.attachBaseContext(context);
Log.i(
TAG,
"version=%s (%s) minSdkVersion=%s isBundle=%s processName=%s",
VersionConstants.PRODUCT_VERSION,
BuildConfig.VERSION_CODE,
BuildConfig.MIN_SDK_VERSION,
ProductConfig.IS_BUNDLE,
ContextUtils.getProcessName());
ContextUtils.initApplicationContext(this);
maybeInitProcessGlobals();
// MonochromeApplication has its own locale configuration already, so call this here
// rather than in maybeInitProcessGlobals.
ResourceBundle.setAvailablePakLocales(AwLocaleConfig.getWebViewSupportedPakLocales());
}
@Override
public void onCreate() {
super.onCreate();
checkForAppRecovery();
FontPreloadingWorkaround.maybeInstallWorkaround(this);
}
public static void checkForAppRecovery() {
if (ContextUtils.getProcessName().contains(":webview_service")) {
PlatformServiceBridge.getInstance().checkForAppRecovery();
}
}
/**
* Initializes globals needed for components that run in the "webview_apk" or "webview_service"
* process.
*
* This is also called by MonochromeApplication, so the initialization here will run
* for those processes regardless of whether the WebView is standalone or Monochrome.
*/
public static void maybeInitProcessGlobals() {
if (isWebViewProcess()) {
PathUtils.setPrivateDataDirectorySuffix("webview", "WebView");
CommandLineUtil.initCommandLine();
PureJavaExceptionHandler.installHandler(AwPureJavaExceptionReporter::new);
CustomAssertionHandler.installPreNativeHandler(AwPureJavaExceptionReporter::new);
// TODO(crbug.com/40751605): Do set up a native UMA recorder once we support recording
// metrics from native nonembedded code.
UmaRecorderHolder.setUpNativeUmaRecorder(false);
UmaRecorderHolder.setNonNativeDelegate(new AwNonembeddedUmaRecorder());
// Only register nonembedded SafeMode actions for webview_apk or webview_service
// processes.
SafeModeController controller = SafeModeController.getInstance();
controller.registerActions(NonembeddedSafeModeActionsList.sList);
}
if (!LibraryLoader.getInstance().isLoadedByZygote()) {
LibraryLoader.getInstance().setNativeLibraryPreloader(new WebViewLibraryPreloader());
}
}
// Returns true if running in the "webview_apk" or "webview_service" process.
public static boolean isWebViewProcess() {
// Either "webview_service", or "webview_apk".
// "webview_service" is meant to be very light-weight and never load the native library.
return ContextUtils.getProcessName().contains(":webview_");
}
/**
* Post a non-blocking, low priority background task that shows a launcher icon for WebView
* DevTools if this Monochrome package is the current selected WebView provider for the system
* otherwise it hides that icon. This works only for Monochrome and shouldn't be used for other
* WebView providers. Other WebView Providers (Standalone and Trichrome) will always have
* launcher icons whether they are the current selected providers or not.
*
* Should be guarded by process type checks and should only be called if it's a webview process
* or a browser process.
*/
public static void postDeveloperUiLauncherIconTask() {
PostTask.postTask(
TaskTraits.BEST_EFFORT,
() -> {
Context context = ContextUtils.getApplicationContext();
try {
ComponentName devToolsLauncherActivity =
new ComponentName(
context,
"org.chromium.android_webview.devui.MonochromeLauncherActivity");
int oldIconState =
context.getPackageManager()
.getComponentEnabledSetting(devToolsLauncherActivity);
// Enable the icon if this is the current WebView provider, otherwise set
// the icon back to default (disabled) state.
boolean shouldShowIcon =
WebViewPackageHelper.isCurrentSystemWebViewImplementation(context);
int newIconState =
shouldShowIcon
? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
: PackageManager.COMPONENT_ENABLED_STATE_DEFAULT;
if (oldIconState == newIconState) return;
context.getPackageManager()
.setComponentEnabledSetting(
devToolsLauncherActivity,
newIconState,
PackageManager.DONT_KILL_APP);
} catch (IllegalArgumentException e) {
// If MonochromeLauncherActivity doesn't exist, Dynamically showing/hiding
// DevTools launcher icon is not enabled in this package; e.g when it is a
// stable channel.
}
});
}
/**
* Performs minimal native library initialization required when running as a stand-alone APK.
* @return True if the library was loaded, false if running as webview stub.
*/
static synchronized boolean ensureNativeInitialized() {
assert ThreadUtils.runningOnUiThread()
: "WebViewApkApplication#ensureNativeInitialized should only be called on the"
+ " UIThread";
try {
if (LibraryLoader.getInstance().isInitialized()) {
return true;
}
// Should not call LibraryLoader.initialize() since this will reset UmaRecorder
// delegate.
LibraryLoader.getInstance()
.setLibraryProcessType(LibraryProcessType.PROCESS_WEBVIEW_NONEMBEDDED);
LibraryLoader.getInstance().ensureInitialized();
LibraryLoader.getInstance().switchCommandLineForWebView();
WebViewApkApplicationJni.get().initializeGlobalsAndResources();
return true;
} catch (Throwable unused) {
// Happens for WebView Stub. Throws NoClassDefFoundError because of no
// NativeLibraries.java being generated.
return false;
}
}
@NativeMethods
interface Natives {
void initializeGlobalsAndResources();
}
}
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