[Messages] Add dismiss callback to the banner

Bug: 1137941
Change-Id: I1d9f7291f8ca5388667687d4bc2e5839837d3c50
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2530199
Commit-Queue: Sinan Sahin <sinansahin@google.com>
Reviewed-by: Pavel Yatsuk <pavely@chromium.org>
Cr-Commit-Position: refs/heads/master@{#827529}

components/messages/android/java/src/org/chromium/components/messages/MessageBannerCoordinator.java

@@ -24,11 +24,15 @@ class MessageBannerCoordinator {
      * @param maxTranslationSupplier A {@link Supplier} that supplies the maximum translation Y
      *         value the message banner can have as a result of the animations or the gestures.
      * @param resources The {@link Resources}.
+     * @param messageDismissed The {@link Runnable} that will run if and when the user dismisses the
+     *         message.
      */
     MessageBannerCoordinator(MessageBannerView view, PropertyModel model,
-            Supplier<Integer> maxTranslationSupplier, Resources resources) {
+            Supplier<Integer> maxTranslationSupplier, Resources resources,
+            Runnable messageDismissed) {
         PropertyModelChangeProcessor.create(model, view, MessageBannerViewBinder::bind);
-        mMediator = new MessageBannerMediator(model, maxTranslationSupplier, resources);
+        mMediator = new MessageBannerMediator(
+                model, maxTranslationSupplier, resources, messageDismissed);
         view.setSwipeHandler(mMediator);
     }
 

components/messages/android/java/src/org/chromium/components/messages/MessageBannerMediator.java

@@ -40,18 +40,20 @@ class MessageBannerMediator implements SwipeHandler {
     private Supplier<Integer> mMaxTranslationSupplier;
 
     private final float mHideThresholdPx;
+    private final Runnable mMessageDismissed;
 
     private float mSwipeStartTranslationY;
 
     /**
      * Constructs the message banner mediator.
      */
-    MessageBannerMediator(
-            PropertyModel model, Supplier<Integer> maxTranslationSupplier, Resources resources) {
+    MessageBannerMediator(PropertyModel model, Supplier<Integer> maxTranslationSupplier,
+            Resources resources, Runnable messageDismissed) {
         mModel = model;
         mMaxTranslationSupplier = maxTranslationSupplier;
         mModel.set(TRANSLATION_Y, -mMaxTranslationSupplier.get());
         mHideThresholdPx = resources.getDimensionPixelSize(R.dimen.message_hide_threshold);
+        mMessageDismissed = messageDismissed;
     }
 
     /**
@@ -121,8 +123,7 @@ class MessageBannerMediator implements SwipeHandler {
         mAnimatorSet.addListener(new CancelAwareAnimatorListener() {
             @Override
             public void onEnd(Animator animator) {
-                // TODO(sinansahin): We need a way to notify someone to dismiss the message once
-                // it's hidden.
+                mMessageDismissed.run();
                 mAnimatorSet = null;
             }
         });

components/messages/android/java/src/org/chromium/components/messages/SingleActionMessage.java

@@ -53,14 +53,15 @@ public class SingleActionMessage implements MessageStateHandler {
         if (mMessageBanner == null) {
             mView = (MessageBannerView) LayoutInflater.from(mContainer.getContext())
                             .inflate(R.layout.message_banner_view, mContainer, false);
-            mMessageBanner = new MessageBannerCoordinator(
-                    mView, mModel, mMaxTranslationSupplier, mContainer.getResources());
+            mMessageBanner = new MessageBannerCoordinator(mView, mModel, mMaxTranslationSupplier,
+                    mContainer.getResources(), mDismissHandler.bind(mModel));
         }
         mContainer.addMessage(mView);
-        mMessageBanner.show(() -> {
+        final Runnable onShown = () -> {
             mMessageBanner.setOnTouchRunnable(mAutoDismissTimer::resetTimer);
             mAutoDismissTimer.startTimer(() -> { mDismissHandler.onResult(mModel); });
-        });
+        };
+        mMessageBanner.show(onShown);
     }
 
     /**