WebAPK: Move MainActivity#onCreate() to runtime library

chrome/android/webapk/libs/runtime_library/src/org/chromium/webapk/lib/runtime_library/HostBrowserLauncher.java

Index: chrome/android/webapk/libs/runtime_library/src/org/chromium/webapk/lib/runtime_library/HostBrowserLauncher.java
diff --git a/chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/MainActivity.java b/chrome/android/webapk/libs/runtime_library/src/org/chromium/webapk/lib/runtime_library/HostBrowserLauncher.java
similarity index 50%
copy from chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/MainActivity.java
copy to chrome/android/webapk/libs/runtime_library/src/org/chromium/webapk/lib/runtime_library/HostBrowserLauncher.java
index 4e177e0ca9122bdd41dacb5a92e2d5fa616facd8..ace63e44cdd6362a3df915c97a74cc24a0ee380c 100644
--- a/chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/MainActivity.java
+++ b/chrome/android/webapk/libs/runtime_library/src/org/chromium/webapk/lib/runtime_library/HostBrowserLauncher.java
@@ -2,10 +2,11 @@
 // 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;
+package org.chromium.webapk.lib.runtime_library;
 
-import android.app.Activity;
+import android.content.ActivityNotFoundException;
 import android.content.ComponentName;
+import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
@@ -22,9 +23,9 @@ import org.chromium.webapk.lib.common.WebApkConstants;
 import java.io.ByteArrayOutputStream;
 
 /**
- * WebAPK's main Activity.
+ * Launches Chrome in WebAPK mode.
  */
-public class MainActivity extends Activity {
+public class HostBrowserLauncher {
     // These EXTRA_* values must stay in sync with
     // {@link org.chromium.chrome.browser.ShortcutHelper}.
     private static final String EXTRA_ID = "org.chromium.chrome.browser.webapp_id";
@@ -50,66 +51,82 @@ public class MainActivity extends Activity {
     private static final String META_DATA_BACKGROUND_COLOR = "backgroundColor";
     private static final String META_DATA_ICON_URL = "iconUrl";
 
-    private static final String TAG = "cr_MainActivity";
+    /**
+     * Key for passing app icon id in Bundle to {@link #launch()}.
+     */
+    private static final String KEY_APP_ICON_ID = "app_icon_id";
 
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
+    private static final String TAG = "cr_HostBrowserLauncher";
 
-        String packageName = getPackageName();
+    /**
+     * Launches Chrome in WebAPK mode.
+     * @param context Application context.
+     * @param intent Intent used to launch WebAPK.
+     * @param bundle Contains extra parameters.
+     */
+    public void launch(Context context, Intent intent, Bundle bundle) {
+        int appIconId = bundle.getInt(KEY_APP_ICON_ID);
+
+        String packageName = context.getPackageName();
+        ApplicationInfo appInfo;
         try {
-            ApplicationInfo appInfo = getPackageManager().getApplicationInfo(
+            appInfo = context.getPackageManager().getApplicationInfo(
                     packageName, PackageManager.GET_META_DATA);
-            Bundle bundle = appInfo.metaData;
-            String url = bundle.getString(META_DATA_START_URL);
-
-            Intent intent = getIntent();
-            String overrideUrl = intent.getDataString();
-            // TODO(pkotwicz): Use same logic as {@code IntentHandler#shouldIgnoreIntent()}
-            if (overrideUrl != null && overrideUrl.startsWith("https:")) {
-                url = overrideUrl;
-            }
-            int source = intent.getIntExtra(EXTRA_SOURCE, 0);
-
-            String webappId = WebApkConstants.WEBAPK_ID_PREFIX + packageName;
-            String runtimeHost = bundle.getString(META_DATA_RUNTIME_HOST);
-            String shortName = (String) getPackageManager().getApplicationLabel(appInfo);
-            // TODO(hanxi): find a neat solution to avoid encode/decode each time launch the
-            // activity.
-            Bitmap icon = BitmapFactory.decodeResource(getResources(), R.drawable.app_icon);
-            String encodedIcon = encodeBitmapAsString(icon);
-            String name = bundle.getString(META_DATA_NAME);
-            String displayMode = bundle.getString(META_DATA_DISPLAY_MODE);
-            String orientation = bundle.getString(META_DATA_ORIENTATION);
-            long themeColor = getLongFromBundle(bundle, META_DATA_THEME_COLOR);
-            long backgroundColor = getLongFromBundle(bundle, META_DATA_BACKGROUND_COLOR);
-            boolean isIconGenerated = TextUtils.isEmpty(bundle.getString(META_DATA_ICON_URL));
-            Log.v(TAG, "Url of the WebAPK: " + url);
-            Log.v(TAG, "WebappId of the WebAPK: " + webappId);
-            Log.v(TAG, "Name of the WebAPK:" + name);
-            Log.v(TAG, "Package name of the WebAPK:" + packageName);
-
-            Intent newIntent = new Intent();
-            newIntent.setComponent(new ComponentName(runtimeHost,
-                    "org.chromium.chrome.browser.webapps.WebappLauncherActivity"));
-            // Chrome expects the ShortcutHelper.EXTRA_DISPLAY_MODE and
-            // ShortcutHelper.EXTRA_ORIENTATION extras to be enum values. We send string extras for
-            // the display mode and orientation so have to use different keys.
-            newIntent.putExtra(EXTRA_ID, webappId)
-                     .putExtra(EXTRA_SHORT_NAME, shortName)
-                     .putExtra(EXTRA_NAME, name)
-                     .putExtra(EXTRA_URL, url)
-                     .putExtra(EXTRA_ICON, encodedIcon)
-                     .putExtra(EXTRA_SOURCE, source)
-                     .putExtra(EXTRA_THEME_COLOR, themeColor)
-                     .putExtra(EXTRA_BACKGROUND_COLOR, backgroundColor)
-                     .putExtra(EXTRA_IS_ICON_GENERATED, isIconGenerated)
-                     .putExtra(EXTRA_WEBAPK_PACKAGE_NAME, packageName)
-                     .putExtra(WebApkConstants.EXTRA_WEBAPK_DISPLAY_MODE, displayMode)
-                     .putExtra(WebApkConstants.EXTRA_WEBAPK_ORIENTATION, orientation);
-            startActivity(newIntent);
-            finish();
         } catch (NameNotFoundException e) {
+            return;
+        }
+
+        Bundle metaBundle = appInfo.metaData;
+        String url = metaBundle.getString(META_DATA_START_URL);
+
+        String overrideUrl = intent.getDataString();
+        // TODO(pkotwicz): Use same logic as {@code IntentHandler#shouldIgnoreIntent()}
+        if (overrideUrl != null && overrideUrl.startsWith("https:")) {
+            url = overrideUrl;
+        }
+        int source = intent.getIntExtra(EXTRA_SOURCE, 0);
+
+        String webappId = WebApkConstants.WEBAPK_ID_PREFIX + packageName;
+        String runtimeHost = metaBundle.getString(META_DATA_RUNTIME_HOST);
+        String shortName = (String) context.getPackageManager().getApplicationLabel(appInfo);
+        // TODO(hanxi): find a neat solution to avoid encode/decode each time launch the
+        // activity.
+        Bitmap icon = BitmapFactory.decodeResource(context.getResources(), appIconId);
+        String encodedIcon = encodeBitmapAsString(icon);
+        String name = metaBundle.getString(META_DATA_NAME);
+        String displayMode = metaBundle.getString(META_DATA_DISPLAY_MODE);
+        String orientation = metaBundle.getString(META_DATA_ORIENTATION);
+        long themeColor = getLongFromBundle(metaBundle, META_DATA_THEME_COLOR);
+        long backgroundColor = getLongFromBundle(metaBundle, META_DATA_BACKGROUND_COLOR);
+        boolean isIconGenerated = TextUtils.isEmpty(metaBundle.getString(META_DATA_ICON_URL));
+        Log.v(TAG, "Url of the WebAPK: " + url);
+        Log.v(TAG, "WebappId of the WebAPK: " + webappId);
+        Log.v(TAG, "Name of the WebAPK:" + name);
+        Log.v(TAG, "Package name of the WebAPK:" + packageName);
+
+        Intent newIntent = new Intent();
+        newIntent.setComponent(new ComponentName(
+                runtimeHost, "org.chromium.chrome.browser.webapps.WebappLauncherActivity"));
+
+        // Chrome expects the ShortcutHelper.EXTRA_DISPLAY_MODE and
+        // ShortcutHelper.EXTRA_ORIENTATION extras to be enum values. We send string extras for
+        // the display mode and orientation so have to use different keys.
+        newIntent.putExtra(EXTRA_ID, webappId)
+                .putExtra(EXTRA_SHORT_NAME, shortName)
+                .putExtra(EXTRA_NAME, name)
+                .putExtra(EXTRA_URL, url)
+                .putExtra(EXTRA_ICON, encodedIcon)
+                .putExtra(EXTRA_SOURCE, source)
+                .putExtra(EXTRA_THEME_COLOR, themeColor)
+                .putExtra(EXTRA_BACKGROUND_COLOR, backgroundColor)
+                .putExtra(EXTRA_IS_ICON_GENERATED, isIconGenerated)
+                .putExtra(EXTRA_WEBAPK_PACKAGE_NAME, packageName)
+                .putExtra(WebApkConstants.EXTRA_WEBAPK_DISPLAY_MODE, displayMode)
+                .putExtra(WebApkConstants.EXTRA_WEBAPK_ORIENTATION, orientation);
+
+        try {
+            context.startActivity(newIntent);
+        } catch (ActivityNotFoundException e) {
             e.printStackTrace();
         }
     }