chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/MainActivity.java - chromium/src - Git at Google

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 package org.chromium.webapk.shell_apk;

 import android.app.Activity;
 import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.ResolveInfo;
 import android.net.Uri;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.Log;

 import org.chromium.webapk.lib.common.WebApkConstants;
 import org.chromium.webapk.lib.common.WebApkMetaDataKeys;

 import java.io.File;
 import java.util.List;

 /**
  * WebAPK's main Activity.
  */
 public class MainActivity extends Activity {
     private static final String LAST_RESORT_HOST_BROWSER = "com.android.chrome";
     private static final String LAST_RESORT_HOST_BROWSER_APPLICATION_NAME = "Google Chrome";
     private static final String TAG = "cr_MainActivity";

     /**
      * Name of class which launches browser in WebAPK mode.
      */
     private static final String HOST_BROWSER_LAUNCHER_CLASS_NAME =
             "org.chromium.webapk.lib.runtime_library.HostBrowserLauncher";

     // Action for launching {@link WebappLauncherActivity}.
     // TODO(hanxi): crbug.com/737556. Replaces this string with the new WebAPK launch action after
     // it is propagated to all the Chrome's channels.
     public static final String ACTION_START_WEBAPK =
             "com.google.android.apps.chrome.webapps.WebappManager.ACTION_START_WEBAPP";

     // Must stay in sync with
     // {@link org.chromium.chrome.browser.ShortcutHelper#REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB}.
     private static final String REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB =
             "REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB";

     /**
      * Key for passing app icon id.
      */
     private static final String KEY_APP_ICON_ID = "app_icon_id";

     /**
      * The URL to launch the WebAPK. Used in the case of deep-links (intents from other apps) that
      * fall into the WebAPK scope.
      */
     private String mOverrideUrl;

     /** The "start_url" baked in the AndroidManifest.xml. */
     private String mStartUrl;

     /**
      * Creates install Intent.
      * @param packageName Package to install.
      * @return The intent.
      */
     private static Intent createInstallIntent(String packageName) {
         String marketUrl = "market://details?id=" + packageName;
         Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(marketUrl));
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         return intent;
     }

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         Bundle metadata = WebApkUtils.readMetaData(this);
         if (metadata == null) {
             finish();
             return;
         }

         mOverrideUrl = getOverrideUrl();
         mStartUrl = (mOverrideUrl != null) ? mOverrideUrl
                                            : metadata.getString(WebApkMetaDataKeys.START_URL);
         if (mStartUrl == null) {
             finish();
             return;
         }

         // The WebAPK may have been launched as a result of an intent filter for a different
         // scheme or top level domain. Rewrite the scheme and host name to the scope's
         // scheme and host name.
         String scopeUrl = metadata.getString(WebApkMetaDataKeys.SCOPE);
         if (!TextUtils.isEmpty(scopeUrl)) {
             Uri parsedStartUrl = Uri.parse(mStartUrl);
             Uri parsedScope = Uri.parse(scopeUrl);
             mStartUrl = parsedStartUrl.buildUpon()
                                 .scheme(parsedScope.getScheme())
                                 .encodedAuthority(parsedScope.getEncodedAuthority())
                                 .build()
                                 .toString();
         }

         Log.v(TAG, "Url of the WebAPK: " + mStartUrl);
         String packageName = getPackageName();
         Log.v(TAG, "Package name of the WebAPK:" + packageName);

         String runtimeHostInPreferences = WebApkUtils.getHostBrowserFromSharedPreference(this);
         String runtimeHost = WebApkUtils.getHostBrowserPackageName(this);
         if (!TextUtils.isEmpty(runtimeHostInPreferences)
                 && !runtimeHostInPreferences.equals(runtimeHost)) {
             deleteSharedPref(this);
             deleteInternalStorage();
         }

         if (!TextUtils.isEmpty(runtimeHost)) {
             launchInHostBrowser(runtimeHost);
             finish();
             return;
         }

         List<ResolveInfo> infos = WebApkUtils.getInstalledBrowserResolveInfos(getPackageManager());
         if (hasBrowserSupportingWebApks(infos)) {
             showChooseHostBrowserDialog(infos);
         } else {
             showInstallHostBrowserDialog(metadata);
         }
     }

     /** Deletes the SharedPreferences. */
     private void deleteSharedPref(Context context) {
         SharedPreferences sharedPref =
                 context.getSharedPreferences(WebApkConstants.PREF_PACKAGE, Context.MODE_PRIVATE);
         SharedPreferences.Editor editor = sharedPref.edit();
         editor.clear();
         editor.apply();
     }

     /** Deletes the internal storage. */
     private void deleteInternalStorage() {
         deletePath(getCacheDir());
         deletePath(getFilesDir());
         deletePath(getDir(HostBrowserClassLoader.DEX_DIR_NAME, Context.MODE_PRIVATE));
     }

     private void deletePath(File file) {
         if (file == null) return;

         if (file.isDirectory()) {
             File[] children = file.listFiles();
             if (children != null) {
                 for (File child : children) {
                     deletePath(child);
                 }
             }
         }

         if (!file.delete()) {
             Log.e(TAG, "Failed to delete : " + file.getAbsolutePath());
         }
     }

     private void launchInHostBrowser(String runtimeHost) {
         boolean forceNavigation = false;
         int source = getIntent().getIntExtra(WebApkConstants.EXTRA_SOURCE, 0);
         if (mOverrideUrl != null) {
             if (source == WebApkConstants.SHORTCUT_SOURCE_UNKNOWN) {
                 source = WebApkConstants.SHORTCUT_SOURCE_EXTERNAL_INTENT;
             }
             forceNavigation =
                     getIntent().getBooleanExtra(WebApkConstants.EXTRA_FORCE_NAVIGATION, true);
         }

         // The override URL is non null when the WebAPK is launched from a deep link. The WebAPK
         // should navigate to the URL in the deep link even if the WebAPK is already open.
         Intent intent = new Intent();
         intent.setAction(ACTION_START_WEBAPK);
         intent.setPackage(runtimeHost);
         intent.putExtra(WebApkConstants.EXTRA_URL, mStartUrl)
                 .putExtra(WebApkConstants.EXTRA_SOURCE, source)
                 .putExtra(WebApkConstants.EXTRA_WEBAPK_PACKAGE_NAME, getPackageName())
                 .putExtra(WebApkConstants.EXTRA_FORCE_NAVIGATION, forceNavigation);

         try {
             startActivity(intent);
         } catch (ActivityNotFoundException e) {
             Log.w(TAG, "Unable to launch browser in WebAPK mode.");
             e.printStackTrace();
         }
     }

     /**
      * Launches the Play Store with the host browser's page.
      */
     private void installBrowser(String hostBrowserPackageName) {
         try {
             startActivity(createInstallIntent(hostBrowserPackageName));
         } catch (ActivityNotFoundException e) {
         }
     }

     /** Retrieves URL from the intent's data. Returns null if a URL could not be retrieved. */
     private String getOverrideUrl() {
         String overrideUrl = getIntent().getDataString();
         if (overrideUrl != null
                 && (overrideUrl.startsWith("https:") || overrideUrl.startsWith("http:"))) {
             return overrideUrl;
         }
         return null;
     }

     /** Returns whether there is any installed browser supporting WebAPKs. */
     private static boolean hasBrowserSupportingWebApks(List<ResolveInfo> resolveInfos) {
         List<String> browsersSupportingWebApk = WebApkUtils.getBrowsersSupportingWebApk();
         for (ResolveInfo info : resolveInfos) {
             if (browsersSupportingWebApk.contains(info.activityInfo.packageName)) {
                 return true;
             }
         }
         return false;
     }

     /** Shows a dialog to choose the host browser. */
     private void showChooseHostBrowserDialog(List<ResolveInfo> infos) {
         ChooseHostBrowserDialog.DialogListener listener =
                 new ChooseHostBrowserDialog.DialogListener() {
                     @Override
                     public void onHostBrowserSelected(String selectedHostBrowser) {
                         launchInHostBrowser(selectedHostBrowser);
                         WebApkUtils.writeHostBrowserToSharedPref(
                                 MainActivity.this, selectedHostBrowser);
                         finish();
                     }
                     @Override
                     public void onQuit() {
                         finish();
                     }
                 };
         ChooseHostBrowserDialog.show(this, listener, infos, getString(R.string.name));
     }

     /** Shows a dialog to install the host browser. */
     private void showInstallHostBrowserDialog(Bundle metadata) {
         String lastResortHostBrowserPackageName =
                 metadata.getString(WebApkMetaDataKeys.RUNTIME_HOST);
         String lastResortHostBrowserApplicationName =
                 metadata.getString(WebApkMetaDataKeys.RUNTIME_HOST_APPLICATION_NAME);

         if (TextUtils.isEmpty(lastResortHostBrowserPackageName)) {
             // WebAPKs without runtime host specified in the AndroidManifest.xml always install
             // Google Chrome as the default host browser.
             lastResortHostBrowserPackageName = LAST_RESORT_HOST_BROWSER;
             lastResortHostBrowserApplicationName = LAST_RESORT_HOST_BROWSER_APPLICATION_NAME;
         }

         InstallHostBrowserDialog.DialogListener listener =
                 new InstallHostBrowserDialog.DialogListener() {
                     @Override
                     public void onConfirmInstall(String packageName) {
                         installBrowser(packageName);
                         WebApkUtils.writeHostBrowserToSharedPref(MainActivity.this, packageName);
                         finish();
                     }
                     @Override
                     public void onConfirmQuit() {
                         finish();
                     }
                 };

         InstallHostBrowserDialog.show(this, listener, getString(R.string.name),
                 lastResortHostBrowserPackageName, lastResortHostBrowserApplicationName,
                 R.drawable.last_resort_runtime_host_logo);
     }
 }
	// Copyright 2015 The Chromium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	package org.chromium.webapk.shell_apk;

	import android.app.Activity;
	import android.content.ActivityNotFoundException;
	import android.content.Context;
	import android.content.Intent;
	import android.content.SharedPreferences;
	import android.content.pm.ResolveInfo;
	import android.net.Uri;
	import android.os.Bundle;
	import android.text.TextUtils;
	import android.util.Log;

	import org.chromium.webapk.lib.common.WebApkConstants;
	import org.chromium.webapk.lib.common.WebApkMetaDataKeys;

	import java.io.File;
	import java.util.List;

	/**
	* WebAPK's main Activity.
	*/
	public class MainActivity extends Activity {
	private static final String LAST_RESORT_HOST_BROWSER = "com.android.chrome";
	private static final String LAST_RESORT_HOST_BROWSER_APPLICATION_NAME = "Google Chrome";
	private static final String TAG = "cr_MainActivity";

	/**
	* Name of class which launches browser in WebAPK mode.
	*/
	private static final String HOST_BROWSER_LAUNCHER_CLASS_NAME =
	"org.chromium.webapk.lib.runtime_library.HostBrowserLauncher";

	// Action for launching {@link WebappLauncherActivity}.
	// TODO(hanxi): crbug.com/737556. Replaces this string with the new WebAPK launch action after
	// it is propagated to all the Chrome's channels.
	public static final String ACTION_START_WEBAPK =
	"com.google.android.apps.chrome.webapps.WebappManager.ACTION_START_WEBAPP";

	// Must stay in sync with
	// {@link org.chromium.chrome.browser.ShortcutHelper#REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB}.
	private static final String REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB =
	"REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB";

	/**
	* Key for passing app icon id.
	*/
	private static final String KEY_APP_ICON_ID = "app_icon_id";

	/**
	* The URL to launch the WebAPK. Used in the case of deep-links (intents from other apps) that
	* fall into the WebAPK scope.
	*/
	private String mOverrideUrl;

	/** The "start_url" baked in the AndroidManifest.xml. */
	private String mStartUrl;

	/**
	* Creates install Intent.
	* @param packageName Package to install.
	* @return The intent.
	*/
	private static Intent createInstallIntent(String packageName) {
	String marketUrl = "market://details?id=" + packageName;
	Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(marketUrl));
	intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
	return intent;
	}

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);

	Bundle metadata = WebApkUtils.readMetaData(this);
	if (metadata == null) {
	finish();
	return;
	}

	mOverrideUrl = getOverrideUrl();
	mStartUrl = (mOverrideUrl != null) ? mOverrideUrl
	: metadata.getString(WebApkMetaDataKeys.START_URL);
	if (mStartUrl == null) {
	finish();
	return;
	}

	// The WebAPK may have been launched as a result of an intent filter for a different
	// scheme or top level domain. Rewrite the scheme and host name to the scope's
	// scheme and host name.
	String scopeUrl = metadata.getString(WebApkMetaDataKeys.SCOPE);
	if (!TextUtils.isEmpty(scopeUrl)) {
	Uri parsedStartUrl = Uri.parse(mStartUrl);
	Uri parsedScope = Uri.parse(scopeUrl);
	mStartUrl = parsedStartUrl.buildUpon()
	.scheme(parsedScope.getScheme())
	.encodedAuthority(parsedScope.getEncodedAuthority())
	.build()
	.toString();
	}

	Log.v(TAG, "Url of the WebAPK: " + mStartUrl);
	String packageName = getPackageName();
	Log.v(TAG, "Package name of the WebAPK:" + packageName);

	String runtimeHostInPreferences = WebApkUtils.getHostBrowserFromSharedPreference(this);
	String runtimeHost = WebApkUtils.getHostBrowserPackageName(this);
	if (!TextUtils.isEmpty(runtimeHostInPreferences)
	&& !runtimeHostInPreferences.equals(runtimeHost)) {
	deleteSharedPref(this);
	deleteInternalStorage();
	}

	if (!TextUtils.isEmpty(runtimeHost)) {
	launchInHostBrowser(runtimeHost);
	finish();
	return;
	}

	List<ResolveInfo> infos = WebApkUtils.getInstalledBrowserResolveInfos(getPackageManager());
	if (hasBrowserSupportingWebApks(infos)) {
	showChooseHostBrowserDialog(infos);
	} else {
	showInstallHostBrowserDialog(metadata);
	}
	}

	/** Deletes the SharedPreferences. */
	private void deleteSharedPref(Context context) {
	SharedPreferences sharedPref =
	context.getSharedPreferences(WebApkConstants.PREF_PACKAGE, Context.MODE_PRIVATE);
	SharedPreferences.Editor editor = sharedPref.edit();
	editor.clear();
	editor.apply();
	}

	/** Deletes the internal storage. */
	private void deleteInternalStorage() {
	deletePath(getCacheDir());
	deletePath(getFilesDir());
	deletePath(getDir(HostBrowserClassLoader.DEX_DIR_NAME, Context.MODE_PRIVATE));
	}

	private void deletePath(File file) {
	if (file == null) return;

	if (file.isDirectory()) {
	File[] children = file.listFiles();
	if (children != null) {
	for (File child : children) {
	deletePath(child);
	}
	}
	}

	if (!file.delete()) {
	Log.e(TAG, "Failed to delete : " + file.getAbsolutePath());
	}
	}

	private void launchInHostBrowser(String runtimeHost) {
	boolean forceNavigation = false;
	int source = getIntent().getIntExtra(WebApkConstants.EXTRA_SOURCE, 0);
	if (mOverrideUrl != null) {
	if (source == WebApkConstants.SHORTCUT_SOURCE_UNKNOWN) {
	source = WebApkConstants.SHORTCUT_SOURCE_EXTERNAL_INTENT;
	}
	forceNavigation =
	getIntent().getBooleanExtra(WebApkConstants.EXTRA_FORCE_NAVIGATION, true);
	}

	// The override URL is non null when the WebAPK is launched from a deep link. The WebAPK
	// should navigate to the URL in the deep link even if the WebAPK is already open.
	Intent intent = new Intent();
	intent.setAction(ACTION_START_WEBAPK);
	intent.setPackage(runtimeHost);
	intent.putExtra(WebApkConstants.EXTRA_URL, mStartUrl)
	.putExtra(WebApkConstants.EXTRA_SOURCE, source)
	.putExtra(WebApkConstants.EXTRA_WEBAPK_PACKAGE_NAME, getPackageName())
	.putExtra(WebApkConstants.EXTRA_FORCE_NAVIGATION, forceNavigation);

	try {
	startActivity(intent);
	} catch (ActivityNotFoundException e) {
	Log.w(TAG, "Unable to launch browser in WebAPK mode.");
	e.printStackTrace();
	}
	}

	/**
	* Launches the Play Store with the host browser's page.
	*/
	private void installBrowser(String hostBrowserPackageName) {
	try {
	startActivity(createInstallIntent(hostBrowserPackageName));
	} catch (ActivityNotFoundException e) {
	}
	}

	/** Retrieves URL from the intent's data. Returns null if a URL could not be retrieved. */
	private String getOverrideUrl() {
	String overrideUrl = getIntent().getDataString();
	if (overrideUrl != null
	&& (overrideUrl.startsWith("https:") \|\| overrideUrl.startsWith("http:"))) {
	return overrideUrl;
	}
	return null;
	}

	/** Returns whether there is any installed browser supporting WebAPKs. */
	private static boolean hasBrowserSupportingWebApks(List<ResolveInfo> resolveInfos) {
	List<String> browsersSupportingWebApk = WebApkUtils.getBrowsersSupportingWebApk();
	for (ResolveInfo info : resolveInfos) {
	if (browsersSupportingWebApk.contains(info.activityInfo.packageName)) {
	return true;
	}
	}
	return false;
	}

	/** Shows a dialog to choose the host browser. */
	private void showChooseHostBrowserDialog(List<ResolveInfo> infos) {
	ChooseHostBrowserDialog.DialogListener listener =
	new ChooseHostBrowserDialog.DialogListener() {
	@Override
	public void onHostBrowserSelected(String selectedHostBrowser) {
	launchInHostBrowser(selectedHostBrowser);
	WebApkUtils.writeHostBrowserToSharedPref(
	MainActivity.this, selectedHostBrowser);
	finish();
	}
	@Override
	public void onQuit() {
	finish();
	}
	};
	ChooseHostBrowserDialog.show(this, listener, infos, getString(R.string.name));
	}

	/** Shows a dialog to install the host browser. */
	private void showInstallHostBrowserDialog(Bundle metadata) {
	String lastResortHostBrowserPackageName =
	metadata.getString(WebApkMetaDataKeys.RUNTIME_HOST);
	String lastResortHostBrowserApplicationName =
	metadata.getString(WebApkMetaDataKeys.RUNTIME_HOST_APPLICATION_NAME);

	if (TextUtils.isEmpty(lastResortHostBrowserPackageName)) {
	// WebAPKs without runtime host specified in the AndroidManifest.xml always install
	// Google Chrome as the default host browser.
	lastResortHostBrowserPackageName = LAST_RESORT_HOST_BROWSER;
	lastResortHostBrowserApplicationName = LAST_RESORT_HOST_BROWSER_APPLICATION_NAME;
	}

	InstallHostBrowserDialog.DialogListener listener =
	new InstallHostBrowserDialog.DialogListener() {
	@Override
	public void onConfirmInstall(String packageName) {
	installBrowser(packageName);
	WebApkUtils.writeHostBrowserToSharedPref(MainActivity.this, packageName);
	finish();
	}
	@Override
	public void onConfirmQuit() {
	finish();
	}
	};

	InstallHostBrowserDialog.show(this, listener, getString(R.string.name),
	lastResortHostBrowserPackageName, lastResortHostBrowserApplicationName,
	R.drawable.last_resort_runtime_host_logo);
	}
	}