Upstream oodles of Chrome for Android code into Chromium.

chrome/android/java_staging/src/org/chromium/chrome/browser/compositor/layouts/LayoutManagerChromePhone.java

+// Copyright 2015 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.compositor.layouts;
+
+import android.content.Context;
+import android.view.ViewGroup;
+
+import org.chromium.chrome.browser.Tab;
+import org.chromium.chrome.browser.compositor.layouts.content.TabContentManager;
+import org.chromium.chrome.browser.compositor.layouts.phone.SimpleAnimationLayout;
+import org.chromium.chrome.browser.compositor.overlays.SceneOverlay;
+import org.chromium.chrome.browser.contextualsearch.ContextualSearchManagementDelegate;
+import org.chromium.chrome.browser.tabmodel.TabCreatorManager;
+import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
+import org.chromium.chrome.browser.tabmodel.TabModelSelector;
+import org.chromium.chrome.browser.tabmodel.TabModelUtils;
+import org.chromium.ui.resources.dynamics.DynamicResourceLoader;
+
+/**
+ * {@link LayoutManagerChromePhone} is the specialization of {@link LayoutManagerChrome} for the
+ * phone.
+ */
+public class LayoutManagerChromePhone extends LayoutManagerChrome {
+    // Layouts
+    private final Layout mSimpleAnimationLayout;
+
+    /**
+     * Creates an instance of a {@link LayoutManagerChromePhone}.
+     * @param host            A {@link LayoutManagerHost} instance.
+     * @param overviewLayoutFactoryDelegate A {@link OverviewLayoutFactoryDelegate} instance.
+     */
+    public LayoutManagerChromePhone(
+            LayoutManagerHost host, OverviewLayoutFactoryDelegate overviewLayoutFactoryDelegate) {
+        super(host, overviewLayoutFactoryDelegate);
+        Context context = host.getContext();
+        LayoutRenderHost renderHost = host.getLayoutRenderHost();
+
+        // Build Layouts
+        mSimpleAnimationLayout =
+                new SimpleAnimationLayout(context, this, renderHost, mBlackHoleEventFilter);
+
+        // Set up layout parameters
+        mStaticLayout.setLayoutHandlesTabLifecycles(false);
+        mToolbarSwipeLayout.setMovesToolbar(true);
+    }
+
+    @Override
+    public void init(TabModelSelector selector, TabCreatorManager creator,
+            TabContentManager content, ViewGroup androidContentContainer,
+            ContextualSearchManagementDelegate contextualSearchDelegate,
+            DynamicResourceLoader dynamicResourceLoader) {
+        // Initialize Layouts
+        mSimpleAnimationLayout.setTabModelSelector(selector, content);
+
+        super.init(selector, creator, content, androidContentContainer, contextualSearchDelegate,
+                dynamicResourceLoader);
+    }
+
+    @Override
+    protected LayoutManagerTabModelObserver createTabModelObserver() {
+        return new LayoutManagerTabModelObserver() {
+            @Override
+            public void willCloseTab(Tab tab, boolean animate) {
+                super.willCloseTab(tab, animate);
+                if (animate) tabClosing(tab.getId());
+            }
+        };
+    }
+
+    @Override
+    protected void addGlobalSceneOverlay(SceneOverlay helper) {
+        super.addGlobalSceneOverlay(helper);
+        mSimpleAnimationLayout.addSceneOverlay(helper);
+    }
+
+    @Override
+    protected void emptyCachesExcept(int tabId) {
+        super.emptyCachesExcept(tabId);
+        if (mTitleCache != null) mTitleCache.clearExcept(tabId);
+    }
+
+    private void tabClosing(int id) {
+        Tab closedTab = getTabById(id);
+        if (closedTab == null) return;
+
+        if (getActiveLayout().handlesTabClosing()) {
+            // The user is currently interacting with the {@code LayoutHost}.
+            // Allow the foreground layout to animate the tab closing.
+            getActiveLayout().onTabClosing(time(), id);
+        } else if (mEnableAnimations) {
+            startShowing(mSimpleAnimationLayout, false);
+            getActiveLayout().onTabClosing(time(), id);
+        }
+    }
+
+    @Override
+    protected void tabClosed(int id, int nextId, boolean incognito) {
+        boolean showOverview = nextId == Tab.INVALID_TAB_ID;
+        Layout overviewLayout = useAccessibilityLayout() ? mOverviewListLayout : mOverviewLayout;
+        if (getActiveLayout() != overviewLayout && showOverview) {
+            // Since there will be no 'next' tab to display, switch to
+            // overview mode when the animation is finished.
+            setNextLayout(overviewLayout);
+        }
+        getActiveLayout().onTabClosed(time(), id, nextId, incognito);
+        Tab nextTab = getTabById(nextId);
+        if (nextTab != null) nextTab.requestFocus();
+        if (getActiveLayout() != overviewLayout && showOverview && !mEnableAnimations) {
+            startShowing(overviewLayout, false);
+        }
+    }
+
+    @Override
+    protected void tabCreating(int sourceId, String url, boolean isIncognito) {
+        if (!getActiveLayout().isHiding() && getActiveLayout().handlesTabCreating()) {
+            // If the current layout in the foreground, let it handle the tab creation animation.
+            // This check allows us to switch from the StackLayout to the SimpleAnimationLayout
+            // smoothly.
+            getActiveLayout().onTabCreating(sourceId);
+        } else if (mEnableAnimations) {
+            if (getActiveLayout() != null && getActiveLayout().isHiding()) {
+                setNextLayout(mSimpleAnimationLayout);
+                // The method Layout#doneHiding() will automatically show the next layout.
+                getActiveLayout().doneHiding();
+            } else {
+                startShowing(mSimpleAnimationLayout, false);
+            }
+            getActiveLayout().onTabCreating(sourceId);
+        }
+    }
+
+    @Override
+    protected void tabCreated(int id, int sourceId, TabLaunchType launchType, boolean isIncognito,
+            boolean willBeSelected, float originX, float originY) {
+        super.tabCreated(id, sourceId, launchType, isIncognito, willBeSelected, originX, originY);
+
+        if (willBeSelected) {
+            Tab newTab = TabModelUtils.getTabById(getTabModelSelector().getModel(isIncognito), id);
+            if (newTab != null) newTab.requestFocus();
+        }
+    }
+
+    @Override
+    public void releaseTabLayout(int id) {
+        mTitleCache.remove(id);
+        super.releaseTabLayout(id);
+    }
+}