| // Copyright (c) 2012 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.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.Paint; |
| import android.graphics.Path; |
| import android.graphics.PorterDuff; |
| import android.graphics.PorterDuffColorFilter; |
| import android.graphics.PorterDuffXfermode; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.graphics.drawable.BitmapDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.Build; |
| import android.util.Log; |
| import android.util.TypedValue; |
| |
| import org.chromium.chrome.R; |
| |
| /** |
| * Util class for bookmarks. |
| */ |
| public class BookmarkUtils { |
| |
| // There is no public string defining this intent so if Home changes the value, we |
| // have to update this string. |
| private static final String INSTALL_SHORTCUT = "com.android.launcher.action.INSTALL_SHORTCUT"; |
| private static final int DEFAULT_RGB_VALUE = 145; |
| private static final String TAG = "BookmarkUtils"; |
| public static final String REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB = |
| "REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB"; |
| private static final int INSET_DIMENSION_FOR_TOUCHICON = 1; |
| private static final int TOUCHICON_BORDER_RADII = 10; |
| |
| /** |
| * Creates an intent that will add a shortcut to the home screen. |
| * @param context Context used to create the intent. |
| * @param shortcutIntent Intent to fire when the shortcut is activated. |
| * @param title Title of the bookmark. |
| * @param favicon Bookmark favicon. |
| * @param rValue Red component of the dominant favicon color. |
| * @param gValue Green component of the dominant favicon color. |
| * @param bValue Blue component of the dominant favicon color. |
| * @return Intent for the shortcut. |
| */ |
| public static Intent createAddToHomeIntent(Context context, Intent shortcutIntent, String title, |
| Bitmap favicon, int rValue, int gValue, int bValue) { |
| Intent i = new Intent(INSTALL_SHORTCUT); |
| i.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent); |
| i.putExtra(Intent.EXTRA_SHORTCUT_NAME, title); |
| i.putExtra(Intent.EXTRA_SHORTCUT_ICON, createIcon(context, favicon, rValue, |
| gValue, bValue)); |
| return i; |
| } |
| |
| /** |
| * Creates an intent that will add a shortcut to the home screen. |
| * @param context Context used to create the intent. |
| * @param url Url of the bookmark. |
| * @param title Title of the bookmark. |
| * @param favicon Bookmark favicon. |
| * @param rValue Red component of the dominant favicon color. |
| * @param gValue Green component of the dominant favicon color. |
| * @param bValue Blue component of the dominant favicon color. |
| * @return Intent for the shortcut. |
| */ |
| public static Intent createAddToHomeIntent(Context context, String url, String title, |
| Bitmap favicon, int rValue, int gValue, int bValue) { |
| Intent shortcutIntent = createShortcutIntent(context, url); |
| return createAddToHomeIntent( |
| context, shortcutIntent, title, favicon, rValue, gValue, bValue); |
| } |
| |
| /** |
| * Shortcut intent for icon on homescreen. |
| * @param context Context used to create the intent. |
| * @param url Url of the bookmark. |
| * @return Intent for onclick action of the shortcut. |
| */ |
| public static Intent createShortcutIntent(Context context, String url) { |
| Intent shortcutIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); |
| shortcutIntent.putExtra(REUSE_URL_MATCHING_TAB_ELSE_NEW_TAB, true); |
| return shortcutIntent; |
| } |
| |
| /** |
| * Creates an icon to be associated with this bookmark. If available, the touch icon |
| * will be used, else we draw our own. |
| * @param context Context used to create the intent. |
| * @param favicon Bookmark favicon bitmap. |
| * @param rValue Red component of the dominant favicon color. |
| * @param gValue Green component of the dominant favicon color. |
| * @param bValue Blue component of the dominant favicon color. |
| * @return Bitmap Either the touch-icon or the newly created favicon. |
| */ |
| private static Bitmap createIcon(Context context, Bitmap favicon, int rValue, |
| int gValue, int bValue) { |
| Bitmap bitmap = null; |
| ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); |
| final int iconSize = am.getLauncherLargeIconSize(); |
| final int iconDensity = am.getLauncherLargeIconDensity(); |
| try { |
| bitmap = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); |
| Canvas canvas = new Canvas(bitmap); |
| if (favicon == null) { |
| favicon = getBitmapFromResourceId(context, R.drawable.globe_favicon, iconDensity); |
| rValue = gValue = bValue = DEFAULT_RGB_VALUE; |
| } |
| final int smallestSide = iconSize; |
| if (favicon.getWidth() >= smallestSide / 2 && favicon.getHeight() >= smallestSide / 2) { |
| drawTouchIconToCanvas(context, favicon, canvas); |
| } else { |
| drawWidgetBackgroundToCanvas(context, canvas, iconDensity, |
| Color.rgb(rValue, gValue, bValue)); |
| drawFaviconToCanvas(context, favicon, canvas); |
| } |
| canvas.setBitmap(null); |
| } catch (OutOfMemoryError e) { |
| Log.w(TAG, "OutOfMemoryError while trying to draw bitmap on canvas."); |
| } |
| return bitmap; |
| } |
| |
| private static Bitmap getBitmapFromResourceId(Context context, int id, int density) { |
| Drawable drawable = null; |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) { |
| drawable = context.getResources().getDrawableForDensity(id, density); |
| } else { |
| drawable = context.getResources().getDrawable(id); |
| } |
| |
| if (drawable instanceof BitmapDrawable) { |
| BitmapDrawable bd = (BitmapDrawable) drawable; |
| return bd.getBitmap(); |
| } |
| assert false : "The drawable was not a bitmap drawable as expected"; |
| return null; |
| } |
| |
| /** |
| * Use touch-icon or higher-resolution favicon and round the corners. |
| * @param context Context used to get resources. |
| * @param touchIcon Touch icon bitmap. |
| * @param canvas Canvas that holds the touch icon. |
| */ |
| private static void drawTouchIconToCanvas( |
| Context context, Bitmap touchIcon, Canvas canvas) { |
| Rect iconBounds = new Rect(0, 0, canvas.getWidth(), canvas.getHeight()); |
| Rect src = new Rect(0, 0, touchIcon.getWidth(), touchIcon.getHeight()); |
| Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| paint.setFilterBitmap(true); |
| canvas.drawBitmap(touchIcon, src, iconBounds, paint); |
| // Convert dp to px. |
| int borderRadii = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, |
| TOUCHICON_BORDER_RADII, context.getResources().getDisplayMetrics()); |
| Path path = new Path(); |
| path.setFillType(Path.FillType.INVERSE_WINDING); |
| RectF rect = new RectF(iconBounds); |
| rect.inset(INSET_DIMENSION_FOR_TOUCHICON, INSET_DIMENSION_FOR_TOUCHICON); |
| path.addRoundRect(rect, borderRadii, borderRadii, Path.Direction.CW); |
| paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR)); |
| canvas.drawPath(path, paint); |
| } |
| |
| /** |
| * Draw the favicon with dominant color. |
| * @param context Context used to create the intent. |
| * @param favicon favicon bitmap. |
| * @param canvas Canvas that holds the favicon. |
| */ |
| private static void drawFaviconToCanvas(Context context, Bitmap favicon, Canvas canvas) { |
| Rect iconBounds = new Rect(0, 0, canvas.getWidth(), canvas.getHeight()); |
| int faviconSize = iconBounds.width() / 3; |
| Bitmap scaledFavicon = Bitmap.createScaledBitmap(favicon, faviconSize, faviconSize, true); |
| canvas.drawBitmap(scaledFavicon, |
| iconBounds.exactCenterX() - scaledFavicon.getWidth() / 2.0f, |
| iconBounds.exactCenterY() - scaledFavicon.getHeight() / 2.0f, null); |
| } |
| |
| /** |
| * Draw document icon to canvas. |
| * @param context Context used to get bitmap resources. |
| * @param canvas Canvas that holds the document icon. |
| * @param iconDensity Density information to get bitmap resources. |
| * @param color Color for the document icon's folding and the bottom strip. |
| */ |
| private static void drawWidgetBackgroundToCanvas( |
| Context context, Canvas canvas, int iconDensity, int color) { |
| Rect iconBounds = new Rect(0, 0, canvas.getWidth(), canvas.getHeight()); |
| Bitmap bookmarkWidgetBg = |
| getBitmapFromResourceId(context, R.mipmap.bookmark_widget_bg, iconDensity); |
| Bitmap bookmarkWidgetBgHighlights = getBitmapFromResourceId(context, |
| R.mipmap.bookmark_widget_bg_highlights, iconDensity); |
| if (bookmarkWidgetBg == null || bookmarkWidgetBgHighlights == null) { |
| Log.w(TAG, "Can't load R.mipmap.bookmark_widget_bg or " + |
| "R.mipmap.bookmark_widget_bg_highlights."); |
| return; |
| } |
| Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG); |
| canvas.drawBitmap(bookmarkWidgetBg, null, iconBounds, paint); |
| |
| // The following color filter will convert bookmark_widget_bg_highlights' white color to |
| // the 'color' variable when it is painted to 'canvas'. |
| paint.setColorFilter(new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_IN)); |
| canvas.drawBitmap(bookmarkWidgetBgHighlights, null, iconBounds, paint); |
| } |
| } |