1 files changed, 118 insertions, 0 deletions
diff --git a/mobile/android/base/java/org/mozilla/gecko/tabs/TabsListLayout.java b/mobile/android/base/java/org/mozilla/gecko/tabs/TabsListLayout.java
new file mode 100644
index 000000000..8cf2f8ede
--- /dev/null
+++ b/mobile/android/base/java/org/mozilla/gecko/tabs/TabsListLayout.java
@@ -0,0 +1,118 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.tabs;
+
+import org.mozilla.gecko.R;
+import org.mozilla.gecko.animation.PropertyAnimator;
+import org.mozilla.gecko.util.ThreadUtils;
+
+import android.content.Context;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.helper.ItemTouchHelper;
+import android.util.AttributeSet;
+import android.view.View;
+
+public class TabsListLayout extends TabsLayout {
+    // Time to animate non-flinged tabs of screen, in milliseconds
+    private static final int ANIMATION_DURATION = 250;
+
+    // Time between starting successive tab animations in closeAllTabs.
+    private static final int ANIMATION_CASCADE_DELAY = 75;
+
+    private int closeAllAnimationCount;
+
+    public TabsListLayout(Context context, AttributeSet attrs) {
+        super(context, attrs, R.layout.tabs_list_item_view);
+
+        setHasFixedSize(true);
+
+        setLayoutManager(new LinearLayoutManager(context));
+
+        // A TouchHelper handler for swipe to close.
+        final TabsTouchHelperCallback callback = new TabsTouchHelperCallback(this);
+        final ItemTouchHelper touchHelper = new ItemTouchHelper(callback);
+        touchHelper.attachToRecyclerView(this);
+
+        setItemAnimator(new TabsListLayoutAnimator(ANIMATION_DURATION));
+    }
+
+    @Override
+    public void closeAll() {
+        final int childCount = getChildCount();
+
+        // Just close the panel if there are no tabs to close.
+        if (childCount == 0) {
+            autoHidePanel();
+            return;
+        }
+
+        // Disable the view so that gestures won't interfere wth the tab close animation.
+        setEnabled(false);
+
+        // Delay starting each successive animation to create a cascade effect.
+        int cascadeDelay = 0;
+        closeAllAnimationCount = 0;
+        for (int i = childCount - 1; i >= 0; i--) {
+            final View view = getChildAt(i);
+            if (view == null) {
+                continue;
+            }
+
+            final PropertyAnimator animator = new PropertyAnimator(ANIMATION_DURATION);
+            animator.attach(view, PropertyAnimator.Property.ALPHA, 0);
+
+            animator.attach(view, PropertyAnimator.Property.TRANSLATION_X, view.getWidth());
+
+            closeAllAnimationCount++;
+
+            animator.addPropertyAnimationListener(new PropertyAnimator.PropertyAnimationListener() {
+                @Override
+                public void onPropertyAnimationStart() {
+                }
+
+                @Override
+                public void onPropertyAnimationEnd() {
+                    closeAllAnimationCount--;
+                    if (closeAllAnimationCount > 0) {
+                        return;
+                    }
+
+                    // Hide the panel after the animation is done.
+                    autoHidePanel();
+
+                    // Re-enable the view after the animation is done.
+                    TabsListLayout.this.setEnabled(true);
+
+                    // Then actually close all the tabs.
+                    closeAllTabs();
+                }
+            });
+
+            ThreadUtils.postDelayedToUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    animator.start();
+                }
+            }, cascadeDelay);
+
+            cascadeDelay += ANIMATION_CASCADE_DELAY;
+        }
+    }
+
+    @Override
+    protected boolean addAtIndexRequiresScroll(int index) {
+        return index == 0 || index == getAdapter().getItemCount() - 1;
+    }
+
+    @Override
+    public void onChildAttachedToWindow(View child) {
+        // Make sure we reset any attributes that may have been animated in this child's previous
+        // incarnation.
+        child.setTranslationX(0);
+        child.setTranslationY(0);
+        child.setAlpha(1);
+    }
+}