[Custom Tabs] Implement Bottombar

chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabIntentDataProvider.java

Index: chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabIntentDataProvider.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabIntentDataProvider.java b/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabIntentDataProvider.java
index d459ccc1d953758a39a6c0e7950d4a4c301520d7..7fd0d7d4ccb9a5344e9fd0290496ddf1dea67af8 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabIntentDataProvider.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/customtabs/CustomTabIntentDataProvider.java
@@ -44,37 +44,6 @@ public class CustomTabIntentDataProvider {
      */
     public static final String EXTRA_KEEP_ALIVE = "android.support.customtabs.extra.KEEP_ALIVE";
 
-    /**
-     * Extra bitmap that specifies the icon of the back button on the toolbar. If the client chooses
-     * not to customize it, a default close button will be used.
-     */
-    public static final String EXTRA_CLOSE_BUTTON_ICON =
-            "android.support.customtabs.extra.CLOSE_BUTTON_ICON";
-
-    /**
-     * Extra int that specifies state for showing the page title. Default is showing only the domain
-     * and no information about the title.
-     */
-    public static final String EXTRA_TITLE_VISIBILITY_STATE =
-            "android.support.customtabs.extra.TITLE_VISIBILITY";
-
-    /**
-     * Don't show any title. Shows only the domain.
-     */
-    public static final int NO_TITLE = 0;
-
-    /**
-     * Shows the page title and the domain.
-     */
-    public static final int SHOW_PAGE_TITLE = 1;
-
-    /**
-     * Extra boolean that specifies whether the custom action button should be tinted. Default is
-     * false and the action button will not be tinted.
-     */
-    public static final String EXTRA_TINT_ACTION_BUTTON =
-            "android.support.customtabs.extra.TINT_ACTION_BUTTON";
-
     private static final int MAX_CUSTOM_MENU_ITEMS = 5;
     private static final String ANIMATION_BUNDLE_PREFIX =
             Build.VERSION.SDK_INT >= Build.VERSION_CODES.M ? "android:activity." : "android:";
@@ -88,11 +57,13 @@ public class CustomTabIntentDataProvider {
     private final int mTitleVisibilityState;
     private int mToolbarColor;
     private boolean mEnableUrlBarHiding;
-    private ActionButtonParams mActionButtonParams;
+    private List<CustomButtonParams> mCustomButtonParams;
     private Drawable mCloseButtonIcon;
     private List<Pair<String, PendingIntent>> mMenuEntries = new ArrayList<>();
     private Bundle mAnimationBundle;
     private boolean mShowShareItem;
+    private CustomButtonParams mToolbarButton;
+    private List<CustomButtonParams> mBottombarButtons = new ArrayList<>(2);
     // OnFinished listener for PendingIntents. Used for testing only.
     private PendingIntent.OnFinished mOnFinished;
 
@@ -101,22 +72,15 @@ public class CustomTabIntentDataProvider {
      */
     public CustomTabIntentDataProvider(Intent intent, Context context) {
         if (intent == null) assert false;
-
         mSession = IntentUtils.safeGetBinderExtra(intent, CustomTabsIntent.EXTRA_SESSION);
+        retrieveCustomButtons(intent, context);
         retrieveToolbarColor(intent, context);
         mEnableUrlBarHiding = IntentUtils.safeGetBooleanExtra(
                 intent, CustomTabsIntent.EXTRA_ENABLE_URLBAR_HIDING, true);
         mKeepAliveServiceIntent = IntentUtils.safeGetParcelableExtra(intent, EXTRA_KEEP_ALIVE);
 
-        Bundle actionButtonBundle =
-                IntentUtils.safeGetBundleExtra(intent, CustomTabsIntent.EXTRA_ACTION_BUTTON_BUNDLE);
-        mActionButtonParams = ActionButtonParams.fromBundle(context, actionButtonBundle);
-        if (mActionButtonParams != null) {
-            mActionButtonParams.setTinted(
-                    IntentUtils.safeGetBooleanExtra(intent, EXTRA_TINT_ACTION_BUTTON, false));
-        }
-
-        Bitmap bitmap = IntentUtils.safeGetParcelableExtra(intent, EXTRA_CLOSE_BUTTON_ICON);
+        Bitmap bitmap = IntentUtils.safeGetParcelableExtra(intent,
+                CustomTabsIntent.EXTRA_CLOSE_BUTTON_ICON);
         if (bitmap != null && !checkCloseButtonSize(context, bitmap)) {
             bitmap.recycle();
             bitmap = null;
@@ -144,13 +108,30 @@ public class CustomTabIntentDataProvider {
 
         mAnimationBundle = IntentUtils.safeGetBundleExtra(
                 intent, CustomTabsIntent.EXTRA_EXIT_ANIMATION_BUNDLE);
-        mTitleVisibilityState =
-                IntentUtils.safeGetIntExtra(intent, EXTRA_TITLE_VISIBILITY_STATE, NO_TITLE);
+        mTitleVisibilityState = IntentUtils.safeGetIntExtra(intent,
+                CustomTabsIntent.EXTRA_TITLE_VISIBILITY_STATE, CustomTabsIntent.NO_TITLE);
         mShowShareItem = IntentUtils.safeGetBooleanExtra(intent,
                 CustomTabsIntent.EXTRA_DEFAULT_SHARE_MENU_ITEM, false);
     }
 
     /**
+     * Gets custom buttons from the intent and updates {@link #mCustomButtonParams},
+     * {@link #mBottombarButtons} and {@link #mToolbarButton}.
+     */
+    private void retrieveCustomButtons(Intent intent, Context context) {
+        mCustomButtonParams = CustomButtonParams.fromIntent(context, intent);
+        if (mCustomButtonParams != null) {
+            for (CustomButtonParams params : mCustomButtonParams) {
+                if (params.showOnToolbar()) {
+                    mToolbarButton = params;
+                } else {
+                    mBottombarButtons.add(params);
+                }
+            }
+        }
+    }
+
+    /**
      * Processes the color passed from the client app and updates {@link #mToolbarColor}.
      */
     private void retrieveToolbarColor(Intent intent, Context context) {
@@ -159,13 +140,17 @@ public class CustomTabIntentDataProvider {
                         R.color.default_primary_color));
         int defaultColor = ApiCompatibilityUtils.getColor(context.getResources(),
                 R.color.default_primary_color);
+        mToolbarColor = removeTransparencyFromColor(color, defaultColor);
+    }
 
-        if (color == Color.TRANSPARENT) color = defaultColor;
-
-        // Ignore any transparency value.
+    /**
+     * Removes the alpha channel of the given color and returns the processed value. If the result
+     * is blank, returns the fallback value.
+     */
+    private int removeTransparencyFromColor(int color, int fallbackColor) {
         color |= 0xFF000000;
-
-        mToolbarColor = color;
+        if (color == Color.TRANSPARENT) color = fallbackColor;
+        return color;
     }
 
     /**
@@ -208,7 +193,7 @@ public class CustomTabIntentDataProvider {
 
     /**
      * @return The title visibility state for the toolbar.
-     *         Default is {@link CustomTabIntentDataProvider#NO_TITLE}.
+     *         Default is {@link CustomTabsIntent#NO_TITLE}.
      */
     public int getTitleVisibilityState() {
         return mTitleVisibilityState;
@@ -222,18 +207,33 @@ public class CustomTabIntentDataProvider {
     }
 
     /**
-     * @return Whether the client app has provided sufficient info for the toolbar to show the
-     *         action button.
+     * @return The params for the custom button that shows on the toolbar. If there is no applicable
+     *         buttons, returns null.
+     */
+    public CustomButtonParams getCustomButtonOnToolbar() {
+        return mToolbarButton;
+    }
+
+    /**
+     * @return The list of params representing the buttons on the bottombar.
+     */
+    public List<CustomButtonParams> getCustomButtonsOnBottombar() {
+        return mBottombarButtons;
+    }
+
+    /**
+     * @return Whether the bottom bar should be shown.
      */
-    public boolean shouldShowActionButton() {
-        return mActionButtonParams != null;
+    public boolean shouldShowBottomBar() {
+        return !mBottombarButtons.isEmpty();
     }
 
     /**
-     * Gets the {@link ActionButtonParams} representing the action button.
+     * Gets params for all custom buttons, which is the combination of
+     * {@link #getCustomButtonsOnBottombar()} and {@link #getCustomButtonOnToolbar()}.
      */
-    ActionButtonParams getActionButtonParams() {
-        return mActionButtonParams;
+    public List<CustomButtonParams> getAllCustomButtons() {
+        return mCustomButtonParams;
     }
 
     /**
@@ -299,16 +299,16 @@ public class CustomTabIntentDataProvider {
     }
 
     /**
-     * Send the pending intent for the current action button with the given url as data.
+     * Sends the pending intent for the custom button on toolbar with the given url as data.
      * @param context The context to use for sending the {@link PendingIntent}.
      * @param url The url to attach as additional data to the {@link PendingIntent}.
      */
     public void sendButtonPendingIntentWithUrl(Context context, String url) {
-        assert shouldShowActionButton();
         Intent addedIntent = new Intent();
         addedIntent.setData(Uri.parse(url));
         try {
-            mActionButtonParams.getPendingIntent().send(context, 0, addedIntent, mOnFinished, null);
+            getCustomButtonOnToolbar().getPendingIntent().send(context, 0, addedIntent, mOnFinished,
+                    null);
         } catch (CanceledException e) {
             Log.e(TAG, "CanceledException while sending pending intent in custom tab");
         }