| // Copyright 2013 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.chrome.browser; |
| |
| import android.app.ActivityManager; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.Paint; |
| import android.graphics.Rect; |
| import android.graphics.drawable.BitmapDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.support.annotation.NonNull; |
| import android.text.TextUtils; |
| import android.util.Base64; |
| |
| import org.chromium.base.ApiCompatibilityUtils; |
| import org.chromium.base.ContextUtils; |
| import org.chromium.base.Log; |
| import org.chromium.base.ThreadUtils; |
| import org.chromium.base.VisibleForTesting; |
| import org.chromium.base.annotations.CalledByNative; |
| import org.chromium.blink_public.platform.WebDisplayMode; |
| import org.chromium.chrome.R; |
| import org.chromium.chrome.browser.util.IntentUtils; |
| import org.chromium.chrome.browser.webapps.ChromeShortcutManager; |
| import org.chromium.chrome.browser.webapps.ChromeWebApkHost; |
| import org.chromium.chrome.browser.webapps.WebApkInfo; |
| import org.chromium.chrome.browser.webapps.WebappActivity; |
| import org.chromium.chrome.browser.webapps.WebappAuthenticator; |
| import org.chromium.chrome.browser.webapps.WebappDataStorage; |
| import org.chromium.chrome.browser.webapps.WebappLauncherActivity; |
| import org.chromium.chrome.browser.webapps.WebappRegistry; |
| import org.chromium.chrome.browser.widget.RoundedIconGenerator; |
| import org.chromium.content_public.common.ScreenOrientationConstants; |
| import org.chromium.ui.widget.Toast; |
| import org.chromium.webapk.lib.client.WebApkValidator; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * This class contains functions related to adding shortcuts to the Android Home |
| * screen. These shortcuts are used to either open a page in the main browser |
| * or open a web app. |
| */ |
| public class ShortcutHelper { |
| public static final String EXTRA_ICON = "org.chromium.chrome.browser.webapp_icon"; |
| public static final String EXTRA_ID = "org.chromium.chrome.browser.webapp_id"; |
| public static final String EXTRA_MAC = "org.chromium.chrome.browser.webapp_mac"; |
| // EXTRA_TITLE is present for backward compatibility reasons. |
| public static final String EXTRA_TITLE = "org.chromium.chrome.browser.webapp_title"; |
| public static final String EXTRA_NAME = "org.chromium.chrome.browser.webapp_name"; |
| public static final String EXTRA_SHORT_NAME = "org.chromium.chrome.browser.webapp_short_name"; |
| public static final String EXTRA_URL = "org.chromium.chrome.browser.webapp_url"; |
| public static final String EXTRA_SCOPE = "org.chromium.chrome.browser.webapp_scope"; |
| public static final String EXTRA_DISPLAY_MODE = |
| "org.chromium.chrome.browser.webapp_display_mode"; |
| public static final String EXTRA_ORIENTATION = ScreenOrientationConstants.EXTRA_ORIENTATION; |
| public static final String EXTRA_SOURCE = "org.chromium.chrome.browser.webapp_source"; |
| public static final String EXTRA_THEME_COLOR = "org.chromium.chrome.browser.theme_color"; |
| public static final String EXTRA_BACKGROUND_COLOR = |
| "org.chromium.chrome.browser.background_color"; |
| public static final String EXTRA_IS_ICON_GENERATED = |
| "org.chromium.chrome.browser.is_icon_generated"; |
| public static final String EXTRA_VERSION = |
| "org.chromium.chrome.browser.webapp_shortcut_version"; |
| public static final String REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB = |
| "REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB"; |
| public static final String EXTRA_WEBAPK_PACKAGE_NAME = |
| "org.chromium.chrome.browser.webapk_package_name"; |
| |
| /** Used for the callback intent when using the new shortcut API. */ |
| public static final String SHORTCUT_TOAST_CATEGORY = |
| "com.google.intent.category.SHORTCUT_TOAST"; |
| |
| // When a new field is added to the intent, this version should be incremented so that it will |
| // be correctly populated into the WebappRegistry/WebappDataStorage. |
| public static final int WEBAPP_SHORTCUT_VERSION = 2; |
| |
| // This value is equal to kInvalidOrMissingColor in the C++ content::Manifest struct. |
| public static final long MANIFEST_COLOR_INVALID_OR_MISSING = ((long) Integer.MAX_VALUE) + 1; |
| |
| private static final String TAG = "ShortcutHelper"; |
| |
| // The activity class used for launching a WebApk. |
| private static final String WEBAPK_MAIN_ACTIVITY = "org.chromium.webapk.shell_apk.MainActivity"; |
| |
| // These sizes are from the Material spec for icons: |
| // https://www.google.com/design/spec/style/icons.html#icons-product-icons |
| private static final float MAX_INNER_SIZE_RATIO = 1.25f; |
| private static final float ICON_PADDING_RATIO = 2.0f / 44.0f; |
| private static final float ICON_CORNER_RADIUS_RATIO = 1.0f / 16.0f; |
| private static final float GENERATED_ICON_PADDING_RATIO = 1.0f / 12.0f; |
| private static final float GENERATED_ICON_FONT_SIZE_RATIO = 1.0f / 3.0f; |
| |
| /** Helper for generating home screen shortcuts. */ |
| public static class Delegate { |
| /** |
| * Request Android to add a shortcut to the home screen. |
| * @param title Title of the shortcut. |
| * @param icon Image that represents the shortcut. |
| * @param intent Intent to fire when the shortcut is activated. |
| */ |
| public void addShortcutToHomescreen(String title, Bitmap icon, Intent shortcutIntent) { |
| ChromeShortcutManager.getInstance().addShortcutToHomeScreen( |
| title, icon, shortcutIntent); |
| } |
| |
| /** |
| * Returns the name of the fullscreen Activity to use when launching shortcuts. |
| */ |
| public String getFullscreenAction() { |
| return WebappLauncherActivity.ACTION_START_WEBAPP; |
| } |
| } |
| |
| private static Delegate sDelegate = new Delegate(); |
| |
| /** |
| * Sets the delegate to use. |
| */ |
| @VisibleForTesting |
| public static void setDelegateForTests(Delegate delegate) { |
| sDelegate = delegate; |
| } |
| |
| /** |
| * Adds home screen shortcut which opens in a {@link WebappActivity}. Creates web app |
| * home screen shortcut and registers web app asynchronously. Calls |
| * ShortcutHelper::OnWebappDataStored() when done. |
| */ |
| @SuppressWarnings("unused") |
| @CalledByNative |
| private static void addWebapp(final String id, final String url, final String scopeUrl, |
| final String userTitle, final String name, final String shortName, final String iconUrl, |
| final Bitmap icon, final int displayMode, final int orientation, final int source, |
| final long themeColor, final long backgroundColor, final long callbackPointer) { |
| new AsyncTask<Void, Void, Intent>() { |
| @Override |
| protected Intent doInBackground(Void... args0) { |
| // Encoding {@link icon} as a string and computing the mac are expensive. |
| |
| Context context = ContextUtils.getApplicationContext(); |
| String nonEmptyScopeUrl = |
| TextUtils.isEmpty(scopeUrl) ? getScopeFromUrl(url) : scopeUrl; |
| Intent shortcutIntent = createWebappShortcutIntent(id, |
| sDelegate.getFullscreenAction(), url, nonEmptyScopeUrl, name, shortName, |
| icon, WEBAPP_SHORTCUT_VERSION, displayMode, orientation, themeColor, |
| backgroundColor, iconUrl.isEmpty()); |
| shortcutIntent.putExtra(EXTRA_MAC, getEncodedMac(context, url)); |
| shortcutIntent.putExtra(EXTRA_SOURCE, source); |
| shortcutIntent.setPackage(context.getPackageName()); |
| return shortcutIntent; |
| } |
| @Override |
| protected void onPostExecute(final Intent resultIntent) { |
| sDelegate.addShortcutToHomescreen(userTitle, icon, resultIntent); |
| |
| // Store the webapp data so that it is accessible without the intent. Once this |
| // process is complete, call back to native code to start the splash image |
| // download. |
| WebappRegistry.getInstance().register( |
| id, new WebappRegistry.FetchWebappDataStorageCallback() { |
| @Override |
| public void onWebappDataStorageRetrieved(WebappDataStorage storage) { |
| storage.updateFromShortcutIntent(resultIntent); |
| nativeOnWebappDataStored(callbackPointer); |
| } |
| }); |
| if (ChromeShortcutManager.getInstance().shouldShowToastWhenAddingShortcut()) { |
| showAddedToHomescreenToast(userTitle); |
| } |
| } |
| }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); |
| } |
| |
| public static void addWebApkShortcut(Context context, String packageName) { |
| PackageManager pm = context.getPackageManager(); |
| try { |
| ApplicationInfo appInfo = pm.getApplicationInfo( |
| packageName, PackageManager.GET_META_DATA); |
| String shortcutTitle = pm.getApplicationLabel(appInfo).toString(); |
| Bitmap shortcutIcon = ((BitmapDrawable) pm.getApplicationIcon(packageName)).getBitmap(); |
| |
| Bitmap bitmap = createHomeScreenIconFromWebIcon(shortcutIcon); |
| Intent i = new Intent(); |
| i.setClassName(packageName, WEBAPK_MAIN_ACTIVITY); |
| i.addCategory(Intent.CATEGORY_LAUNCHER); |
| context.sendBroadcast( |
| ChromeShortcutManager.createAddToHomeIntent(shortcutTitle, bitmap, i)); |
| } catch (NameNotFoundException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| /** |
| * Adds home screen shortcut which opens in the browser Activity. |
| */ |
| @SuppressWarnings("unused") |
| @CalledByNative |
| private static void addShortcut( |
| String id, String url, String userTitle, Bitmap icon, int source) { |
| Context context = ContextUtils.getApplicationContext(); |
| final Intent shortcutIntent = createShortcutIntent(url); |
| shortcutIntent.putExtra(EXTRA_ID, id); |
| shortcutIntent.putExtra(EXTRA_SOURCE, source); |
| shortcutIntent.setPackage(context.getPackageName()); |
| sDelegate.addShortcutToHomescreen(userTitle, icon, shortcutIntent); |
| if (ChromeShortcutManager.getInstance().shouldShowToastWhenAddingShortcut()) { |
| showAddedToHomescreenToast(userTitle); |
| } |
| } |
| |
| /** |
| * Show toast to alert user that the shortcut was added to the home screen. |
| */ |
| private static void showAddedToHomescreenToast(final String title) { |
| Context applicationContext = ContextUtils.getApplicationContext(); |
| String toastText = applicationContext.getString(R.string.added_to_homescreen, title); |
| showToast(toastText); |
| } |
| |
| /** |
| * Show toast when getting the callback intent by the launcher after adding shortcut by using |
| * the new shortcut API. |
| */ |
| public static void showAddedToHomescreenToastFromIntent(Intent intent) { |
| String title = IntentUtils.safeGetStringExtra(intent, Intent.EXTRA_SHORTCUT_NAME); |
| showAddedToHomescreenToast(title); |
| } |
| |
| /** |
| * Determine if it is a callback intent (which requests for a show-toast), used in the new |
| * shortcut API. |
| */ |
| public static boolean isShowToastIntent(Intent intent) { |
| if (intent == null || intent.getCategories() == null) return false; |
| return intent.getCategories().contains(SHORTCUT_TOAST_CATEGORY); |
| } |
| |
| /** |
| * Shows toast notifying user that a WebAPK install is already in progress when user tries to |
| * queue a new install for the same WebAPK. |
| */ |
| @SuppressWarnings("unused") |
| @CalledByNative |
| private static void showWebApkInstallInProgressToast() { |
| Context applicationContext = ContextUtils.getApplicationContext(); |
| String toastText = applicationContext.getString(R.string.webapk_install_in_progress); |
| showToast(toastText); |
| } |
| |
| private static void showToast(String text) { |
| assert ThreadUtils.runningOnUiThread(); |
| Toast toast = |
| Toast.makeText(ContextUtils.getApplicationContext(), text, Toast.LENGTH_SHORT); |
| toast.show(); |
| } |
| |
| /** |
| * Stores the specified bitmap as the splash screen for a web app. |
| * @param id ID of the web app which is storing data. |
| * @param splashImage Image which should be displayed on the splash screen of |
| * the web app. This can be null of there is no image to show. |
| */ |
| @SuppressWarnings("unused") |
| @CalledByNative |
| private static void storeWebappSplashImage(final String id, final Bitmap splashImage) { |
| final WebappDataStorage storage = WebappRegistry.getInstance().getWebappDataStorage(id); |
| if (storage != null) { |
| new AsyncTask<Void, Void, String>() { |
| @Override |
| protected String doInBackground(Void... args0) { |
| return encodeBitmapAsString(splashImage); |
| } |
| |
| @Override |
| protected void onPostExecute(String encodedImage) { |
| storage.updateSplashScreenImage(encodedImage); |
| } |
| }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); |
| } |
| } |
| |
| /** |
| * Creates a shortcut to launch a web app on the home screen. |
| * @param id Id of the web app. |
| * @param action Intent action to open a full screen activity. |
| * @param url Url of the web app. |
| * @param scope Url scope of the web app. |
| * @param name Name of the web app. |
| * @param shortName Short name of the web app. |
| * @param icon Icon of the web app. |
| * @param version Version number of the shortcut. |
| * @param displayMode Display mode of the web app. |
| * @param orientation Orientation of the web app. |
| * @param themeColor Theme color of the web app. |
| * @param backgroundColor Background color of the web app. |
| * @param isIconGenerated True if the icon is generated by Chromium. |
| * @return Intent for onclick action of the shortcut. |
| * This method must not be called on the UI thread. |
| */ |
| public static Intent createWebappShortcutIntent(String id, String action, String url, |
| String scope, String name, String shortName, Bitmap icon, int version, int displayMode, |
| int orientation, long themeColor, long backgroundColor, boolean isIconGenerated) { |
| assert !ThreadUtils.runningOnUiThread(); |
| |
| // Encode the icon as a base64 string (Launcher drops Bitmaps in the Intent). |
| String encodedIcon = encodeBitmapAsString(icon); |
| |
| // Create an intent as a launcher icon for a full-screen Activity. |
| Intent shortcutIntent = new Intent(); |
| shortcutIntent.setAction(action) |
| .putExtra(EXTRA_ID, id) |
| .putExtra(EXTRA_URL, url) |
| .putExtra(EXTRA_SCOPE, scope) |
| .putExtra(EXTRA_NAME, name) |
| .putExtra(EXTRA_SHORT_NAME, shortName) |
| .putExtra(EXTRA_ICON, encodedIcon) |
| .putExtra(EXTRA_VERSION, version) |
| .putExtra(EXTRA_DISPLAY_MODE, displayMode) |
| .putExtra(EXTRA_ORIENTATION, orientation) |
| .putExtra(EXTRA_THEME_COLOR, themeColor) |
| .putExtra(EXTRA_BACKGROUND_COLOR, backgroundColor) |
| .putExtra(EXTRA_IS_ICON_GENERATED, isIconGenerated); |
| return shortcutIntent; |
| } |
| |
| /** |
| * Creates an intent with mostly empty parameters for launching a web app on the homescreen. |
| * @param id Id of the web app. |
| * @param url Url of the web app. |
| * @return the Intent |
| * This method must not be called on the UI thread. |
| */ |
| public static Intent createWebappShortcutIntentForTesting(String id, String url) { |
| assert !ThreadUtils.runningOnUiThread(); |
| return createWebappShortcutIntent(id, null, url, getScopeFromUrl(url), null, null, null, |
| WEBAPP_SHORTCUT_VERSION, WebDisplayMode.Standalone, 0, 0, 0, false); |
| } |
| |
| /** |
| * Shortcut intent for icon on home screen. |
| * @param url Url of the shortcut. |
| * @return Intent for onclick action of the shortcut. |
| */ |
| public static Intent createShortcutIntent(String url) { |
| Intent shortcutIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); |
| shortcutIntent.putExtra(REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB, true); |
| return shortcutIntent; |
| } |
| |
| /** |
| * Utility method to check if a shortcut can be added to the home screen. |
| * @return if a shortcut can be added to the home screen under the current profile. |
| */ |
| public static boolean isAddToHomeIntentSupported() { |
| return ChromeShortcutManager.getInstance().canAddShortcutToHomescreen(); |
| } |
| |
| /** |
| * Returns whether the given icon matches the size requirements to be used on the home screen. |
| * @param width Icon width, in pixels. |
| * @param height Icon height, in pixels. |
| * @return whether the given icon matches the size requirements to be used on the home screen. |
| */ |
| @CalledByNative |
| public static boolean isIconLargeEnoughForLauncher(int width, int height) { |
| Context context = ContextUtils.getApplicationContext(); |
| ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); |
| final int minimalSize = am.getLauncherLargeIconSize() / 2; |
| return width >= minimalSize && height >= minimalSize; |
| } |
| |
| /** |
| * Adapts a website's icon (e.g. favicon or touch icon) to make it suitable for the home screen. |
| * This involves adding padding if the icon is a full sized square. |
| * |
| * @param context Context used to create the intent. |
| * @param webIcon The website's favicon or touch icon. |
| * @return Bitmap Either the touch-icon or the newly created favicon. |
| */ |
| @CalledByNative |
| public static Bitmap createHomeScreenIconFromWebIcon(Bitmap webIcon) { |
| // getLauncherLargeIconSize() is just a guess at the launcher icon size, and is often |
| // wrong -- the launcher can show icons at any size it pleases. Instead of resizing the |
| // icon to the supposed launcher size and then having the launcher resize the icon again, |
| // just leave the icon at its original size and let the launcher do a single rescaling. |
| // Unless the icon is much too big; then scale it down here too. |
| Context context = ContextUtils.getApplicationContext(); |
| ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); |
| int maxInnerSize = Math.round(am.getLauncherLargeIconSize() * MAX_INNER_SIZE_RATIO); |
| int innerSize = Math.min(maxInnerSize, Math.max(webIcon.getWidth(), webIcon.getHeight())); |
| |
| int outerSize = innerSize; |
| Rect innerBounds = new Rect(0, 0, innerSize, innerSize); |
| |
| // Draw the icon with padding around it if all four corners are not transparent. Otherwise, |
| // don't add padding. |
| if (shouldPadIcon(webIcon)) { |
| int padding = Math.round(ICON_PADDING_RATIO * innerSize); |
| outerSize += 2 * padding; |
| innerBounds.offset(padding, padding); |
| } |
| |
| Bitmap bitmap = null; |
| try { |
| bitmap = Bitmap.createBitmap(outerSize, outerSize, Bitmap.Config.ARGB_8888); |
| } catch (OutOfMemoryError e) { |
| Log.w(TAG, "OutOfMemoryError while creating bitmap for home screen icon."); |
| return webIcon; |
| } |
| |
| Canvas canvas = new Canvas(bitmap); |
| Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| paint.setFilterBitmap(true); |
| canvas.drawBitmap(webIcon, null, innerBounds, paint); |
| |
| return bitmap; |
| } |
| |
| /** |
| * Generates a generic icon to be used in the launcher. This is just a rounded rectangle with |
| * a letter in the middle taken from the website's domain name. |
| * |
| * @param url URL of the shortcut. |
| * @param red Red component of the dominant icon color. |
| * @param green Green component of the dominant icon color. |
| * @param blue Blue component of the dominant icon color. |
| * @return Bitmap Either the touch-icon or the newly created favicon. |
| */ |
| @CalledByNative |
| public static Bitmap generateHomeScreenIcon(String url, int red, int green, int blue) { |
| Context context = ContextUtils.getApplicationContext(); |
| ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); |
| final int outerSize = am.getLauncherLargeIconSize(); |
| final int iconDensity = am.getLauncherLargeIconDensity(); |
| |
| Bitmap bitmap = null; |
| try { |
| bitmap = Bitmap.createBitmap(outerSize, outerSize, Bitmap.Config.ARGB_8888); |
| } catch (OutOfMemoryError e) { |
| Log.w(TAG, "OutOfMemoryError while trying to draw bitmap on canvas."); |
| return null; |
| } |
| |
| Canvas canvas = new Canvas(bitmap); |
| |
| // Draw the drop shadow. |
| int padding = (int) (GENERATED_ICON_PADDING_RATIO * outerSize); |
| Rect outerBounds = new Rect(0, 0, outerSize, outerSize); |
| Bitmap iconShadow = |
| getBitmapFromResourceId(context, R.mipmap.shortcut_icon_shadow, iconDensity); |
| Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG); |
| canvas.drawBitmap(iconShadow, null, outerBounds, paint); |
| |
| // Draw the rounded rectangle and letter. |
| int innerSize = outerSize - 2 * padding; |
| int cornerRadius = Math.round(ICON_CORNER_RADIUS_RATIO * outerSize); |
| int fontSize = Math.round(GENERATED_ICON_FONT_SIZE_RATIO * outerSize); |
| int color = Color.rgb(red, green, blue); |
| RoundedIconGenerator generator = new RoundedIconGenerator( |
| innerSize, innerSize, cornerRadius, color, fontSize); |
| Bitmap icon = generator.generateIconForUrl(url); |
| if (icon == null) return null; // Bookmark URL does not have a domain. |
| canvas.drawBitmap(icon, padding, padding, null); |
| |
| return bitmap; |
| } |
| |
| /** |
| * Returns the package name of the WebAPK if WebAPKs are enabled and there is an installed |
| * WebAPK which can handle {@link url}. Returns null otherwise. |
| */ |
| @CalledByNative |
| private static String queryWebApkPackage(String url) { |
| if (!ChromeWebApkHost.isEnabled()) return null; |
| return WebApkValidator.queryWebApkPackage(ContextUtils.getApplicationContext(), url); |
| } |
| |
| /** |
| * Compresses a bitmap into a PNG and converts into a Base64 encoded string. |
| * The encoded string can be decoded using {@link decodeBitmapFromString(String)}. |
| * @param bitmap The Bitmap to compress and encode. |
| * @return the String encoding the Bitmap. |
| */ |
| public static String encodeBitmapAsString(Bitmap bitmap) { |
| if (bitmap == null) return ""; |
| ByteArrayOutputStream output = new ByteArrayOutputStream(); |
| bitmap.compress(Bitmap.CompressFormat.PNG, 100, output); |
| return Base64.encodeToString(output.toByteArray(), Base64.DEFAULT); |
| } |
| |
| /** |
| * Decodes a Base64 string into a Bitmap. Used to decode Bitmaps encoded by |
| * {@link encodeBitmapAsString(Bitmap)}. |
| * @param encodedString the Base64 String to decode. |
| * @return the Bitmap which was encoded by the String. |
| */ |
| public static Bitmap decodeBitmapFromString(String encodedString) { |
| if (TextUtils.isEmpty(encodedString)) return null; |
| byte[] decoded = Base64.decode(encodedString, Base64.DEFAULT); |
| return BitmapFactory.decodeByteArray(decoded, 0, decoded.length); |
| } |
| |
| /** |
| * Returns the ideal size for an icon representing a web app. This size is used on app banners, |
| * the Android Home screen, and in Android's recent tasks list, among other places. |
| * @param context Context to pull resources from. |
| * @return the dimensions in pixels which the icon should have. |
| */ |
| public static int getIdealHomescreenIconSizeInPx(Context context) { |
| return getSizeFromResourceInPx(context, R.dimen.webapp_home_screen_icon_size); |
| } |
| |
| /** |
| * Returns the minimum size for an icon representing a web app. This size is used on app |
| * banners, the Android Home screen, and in Android's recent tasks list, among other places. |
| * @param context Context to pull resources from. |
| * @return the lower bound of the size which the icon should have in pixels. |
| */ |
| public static int getMinimumHomescreenIconSizeInPx(Context context) { |
| float sizeInPx = context.getResources().getDimension(R.dimen.webapp_home_screen_icon_size); |
| float density = context.getResources().getDisplayMetrics().density; |
| float idealIconSizeInDp = sizeInPx / density; |
| |
| return Math.round(idealIconSizeInDp * (density - 1)); |
| } |
| |
| /** |
| * Returns the ideal size for an image displayed on a web app's splash screen. |
| * @param context Context to pull resources from. |
| * @return the dimensions in pixels which the image should have. |
| */ |
| public static int getIdealSplashImageSizeInPx(Context context) { |
| return getSizeFromResourceInPx(context, R.dimen.webapp_splash_image_size_ideal); |
| } |
| |
| /** |
| * Returns the minimum size for an image displayed on a web app's splash screen. |
| * @param context Context to pull resources from. |
| * @return the lower bound of the size which the image should have in pixels. |
| */ |
| public static int getMinimumSplashImageSizeInPx(Context context) { |
| return getSizeFromResourceInPx(context, R.dimen.webapp_splash_image_size_minimum); |
| } |
| |
| /** |
| * Returns the ideal size for a badge icon of a WebAPK. |
| * @param context Context to pull resources from. |
| * @return the dimensions in pixels which the badge icon should have. |
| */ |
| public static int getIdealBadgeIconSizeInPx(Context context) { |
| return getSizeFromResourceInPx(context, R.dimen.webapk_badge_icon_size); |
| } |
| |
| /** |
| * @return String that can be used to verify that a WebappActivity is being started by Chrome. |
| */ |
| public static String getEncodedMac(Context context, String url) { |
| // The only reason we convert to a String here is because Android inexplicably eats a |
| // byte[] when adding the shortcut -- the Bundle received by the launched Activity even |
| // lacks the key for the extra. |
| byte[] mac = WebappAuthenticator.getMacForUrl(context, url); |
| return Base64.encodeToString(mac, Base64.DEFAULT); |
| } |
| |
| /** |
| * Generates a scope URL based on the passed in URL. It should be used if the Web Manifest |
| * does not specify a scope URL. |
| * @param url The url to convert to a scope. |
| * @return The scope. |
| */ |
| @CalledByNative |
| public static String getScopeFromUrl(String url) { |
| // Scope URL is generated by: |
| // - Removing last component of the URL if it does not end with a slash. |
| // - Clearing the URL's query and fragment. |
| |
| Uri uri = Uri.parse(url); |
| List<String> path = uri.getPathSegments(); |
| int endIndex = path.size(); |
| |
| // Remove the last path element if there is at least one path element, *and* the path does |
| // not end with a slash. This means that URLs to specific files have the file component |
| // removed, but URLs to directories retain the directory. |
| if (endIndex > 0 && !uri.getPath().endsWith("/")) { |
| endIndex -= 1; |
| } |
| |
| // Make sure the path starts and ends with a slash (or is only a slash if there is no path). |
| Uri.Builder builder = uri.buildUpon(); |
| String scope_path = "/" + TextUtils.join("/", path.subList(0, endIndex)); |
| if (scope_path.length() > 1) { |
| scope_path += "/"; |
| } |
| builder.path(scope_path); |
| |
| builder.fragment(""); |
| builder.query(""); |
| return builder.build().toString(); |
| } |
| |
| /** |
| * Returns an array of sizes which describe the ideal size and minimum size of the Home screen |
| * icon and the ideal and minimum sizes of the splash screen image in that order. |
| */ |
| @CalledByNative |
| private static int[] getHomeScreenIconAndSplashImageSizes() { |
| Context context = ContextUtils.getApplicationContext(); |
| // This ordering must be kept up to date with the C++ ShortcutHelper. |
| return new int[] { |
| getIdealHomescreenIconSizeInPx(context), |
| getMinimumHomescreenIconSizeInPx(context), |
| getIdealSplashImageSizeInPx(context), |
| getMinimumSplashImageSizeInPx(context), |
| getIdealBadgeIconSizeInPx(context) |
| }; |
| } |
| |
| /** |
| * Returns true if we should add padding to this icon. We use a heuristic that if the pixels in |
| * all four corners of the icon are not transparent, we assume the icon is square and maximally |
| * sized, i.e. in need of padding. Otherwise, no padding is added. |
| */ |
| private static boolean shouldPadIcon(Bitmap icon) { |
| int maxX = icon.getWidth() - 1; |
| int maxY = icon.getHeight() - 1; |
| |
| if ((Color.alpha(icon.getPixel(0, 0)) != 0) && (Color.alpha(icon.getPixel(maxX, maxY)) != 0) |
| && (Color.alpha(icon.getPixel(0, maxY)) != 0) |
| && (Color.alpha(icon.getPixel(maxX, 0)) != 0)) { |
| return true; |
| } |
| return false; |
| } |
| |
| private static int getSizeFromResourceInPx(Context context, int resource) { |
| return Math.round(context.getResources().getDimension(resource)); |
| } |
| |
| private static Bitmap getBitmapFromResourceId(Context context, int id, int density) { |
| Drawable drawable = ApiCompatibilityUtils.getDrawableForDensity( |
| context.getResources(), id, density); |
| |
| if (drawable instanceof BitmapDrawable) { |
| BitmapDrawable bd = (BitmapDrawable) drawable; |
| return bd.getBitmap(); |
| } |
| assert false : "The drawable was not a bitmap drawable as expected"; |
| return null; |
| } |
| |
| /** |
| * Calls the native |callbackPointer| with lists of information on all installed WebAPKs. |
| * |
| * @param callbackPointer Callback to call with the information on the WebAPKs found. |
| */ |
| @CalledByNative |
| public static void retrieveWebApks(long callbackPointer) { |
| List<String> names = new ArrayList<>(); |
| List<String> shortNames = new ArrayList<>(); |
| List<String> packageNames = new ArrayList<>(); |
| List<Integer> shellApkVersions = new ArrayList<>(); |
| List<Integer> versionCodes = new ArrayList<>(); |
| List<String> uris = new ArrayList<>(); |
| List<String> scopes = new ArrayList<>(); |
| List<String> manifestUrls = new ArrayList<>(); |
| List<String> manifestStartUrls = new ArrayList<>(); |
| List<Integer> displayModes = new ArrayList<>(); |
| List<Integer> orientations = new ArrayList<>(); |
| List<Long> themeColors = new ArrayList<>(); |
| List<Long> backgroundColors = new ArrayList<>(); |
| |
| Context context = ContextUtils.getApplicationContext(); |
| PackageManager packageManager = context.getPackageManager(); |
| for (PackageInfo packageInfo : packageManager.getInstalledPackages(0)) { |
| if (WebApkValidator.isValidWebApk(context, packageInfo.packageName)) { |
| // Pass non-null URL parameter so that {@link WebApkInfo#create()} |
| // return value is non-null |
| WebApkInfo webApkInfo = |
| WebApkInfo.create(packageInfo.packageName, "", ShortcutSource.UNKNOWN); |
| if (webApkInfo != null) { |
| names.add(webApkInfo.name()); |
| shortNames.add(webApkInfo.shortName()); |
| packageNames.add(webApkInfo.webApkPackageName()); |
| shellApkVersions.add(webApkInfo.shellApkVersion()); |
| versionCodes.add(packageInfo.versionCode); |
| uris.add(webApkInfo.uri().toString()); |
| scopes.add(webApkInfo.scopeUri().toString()); |
| manifestUrls.add(webApkInfo.manifestUrl()); |
| manifestStartUrls.add(webApkInfo.manifestStartUrl()); |
| displayModes.add(webApkInfo.displayMode()); |
| orientations.add(webApkInfo.orientation()); |
| themeColors.add(webApkInfo.themeColor()); |
| backgroundColors.add(webApkInfo.backgroundColor()); |
| } |
| } |
| } |
| nativeOnWebApksRetrieved(callbackPointer, names.toArray(new String[0]), |
| shortNames.toArray(new String[0]), packageNames.toArray(new String[0]), |
| integerListToIntArray(shellApkVersions), integerListToIntArray(versionCodes), |
| uris.toArray(new String[0]), scopes.toArray(new String[0]), |
| manifestUrls.toArray(new String[0]), manifestStartUrls.toArray(new String[0]), |
| integerListToIntArray(displayModes), integerListToIntArray(orientations), |
| longListToLongArray(themeColors), longListToLongArray(backgroundColors)); |
| } |
| |
| private static int[] integerListToIntArray(@NonNull List<Integer> list) { |
| int[] array = new int[list.size()]; |
| for (int i = 0; i < list.size(); i++) { |
| array[i] = list.get(i); |
| } |
| return array; |
| } |
| |
| private static long[] longListToLongArray(@NonNull List<Long> list) { |
| long[] array = new long[list.size()]; |
| for (int i = 0; i < list.size(); i++) { |
| array[i] = list.get(i); |
| } |
| return array; |
| } |
| |
| private static native void nativeOnWebappDataStored(long callbackPointer); |
| private static native void nativeOnWebApksRetrieved(long callbackPointer, String[] names, |
| String[] shortNames, String[] packageName, int[] shellApkVersions, int[] versionCodes, |
| String[] uris, String[] scopes, String[] manifestUrls, String[] manifestStartUrls, |
| int[] displayModes, int[] orientations, long[] themeColors, long[] backgroundColors); |
| } |
