Implement OverlayPanels as SceneOverlays

chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/phone/ContextualSearchLayout.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/phone/ContextualSearchLayout.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/phone/ContextualSearchLayout.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/phone/ContextualSearchLayout.java
deleted file mode 100644
index e1d7972bf93eb0a278b7979f79aa3ecae9550302..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/phone/ContextualSearchLayout.java
+++ /dev/null
@@ -1,294 +0,0 @@
-// 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.phone;
-
-import android.content.Context;
-import android.graphics.Color;
-import android.graphics.Rect;
-import android.view.View;
-
-import org.chromium.chrome.browser.compositor.LayerTitleCache;
-import org.chromium.chrome.browser.compositor.bottombar.OverlayPanel;
-import org.chromium.chrome.browser.compositor.bottombar.OverlayPanel.StateChangeReason;
-import org.chromium.chrome.browser.compositor.bottombar.OverlayPanelManager;
-import org.chromium.chrome.browser.compositor.layouts.ContextualSearchSupportedLayout;
-import org.chromium.chrome.browser.compositor.layouts.Layout;
-import org.chromium.chrome.browser.compositor.layouts.LayoutRenderHost;
-import org.chromium.chrome.browser.compositor.layouts.LayoutUpdateHost;
-import org.chromium.chrome.browser.compositor.layouts.components.LayoutTab;
-import org.chromium.chrome.browser.compositor.layouts.content.TabContentManager;
-import org.chromium.chrome.browser.compositor.layouts.eventfilter.EdgeSwipeEventFilter.ScrollDirection;
-import org.chromium.chrome.browser.compositor.layouts.eventfilter.EventFilter;
-import org.chromium.chrome.browser.compositor.scene_layer.SceneLayer;
-import org.chromium.chrome.browser.compositor.scene_layer.TabListSceneLayer;
-import org.chromium.chrome.browser.fullscreen.ChromeFullscreenManager;
-import org.chromium.chrome.browser.tab.Tab;
-import org.chromium.chrome.browser.util.MathUtils;
-import org.chromium.content.browser.ContentViewCore;
-import org.chromium.content_public.common.TopControlsState;
-import org.chromium.ui.resources.ResourceManager;
-
-/**
- * A {@link Layout} that shows a Contextual Search overlay at the bottom.
- */
-public class ContextualSearchLayout extends ContextualSearchSupportedLayout {
-    /**
-     * The initial Y position of the touch event.
-     */
-    private float mInitialPanelTouchY;
-
-    /**
-     * The base Tab.
-     */
-    private LayoutTab mBaseTab;
-
-    private final TabListSceneLayer mTabListSceneLayer;
-
-    /**
-     * @param context The current Android context.
-     * @param updateHost The {@link LayoutUpdateHost} view for this layout.
-     * @param renderHost The {@link LayoutRenderHost} view for this layout.
-     * @param eventFilter The {@link EventFilter} that is needed for this view.
-     * @param panelManager The {@link OverlayPanelManager} for getting the active panel.
-     */
-    public ContextualSearchLayout(Context context, LayoutUpdateHost updateHost,
-            LayoutRenderHost renderHost, EventFilter eventFilter,
-            OverlayPanelManager panelManager) {
-        super(context, updateHost, renderHost, eventFilter, panelManager);
-        mTabListSceneLayer = new TabListSceneLayer() {
-            @Override
-            protected int getTabListBackgroundColor(Context context) {
-                OverlayPanel panel = mPanelManager.getActivePanel();
-                // If the panel is null (which in theory should never happen in this case since
-                // this layout is only present when the Panel is open), we will assume the
-                // background color to be white (assuming most pages have a white background).
-                if (panel == null) {
-                    return Color.WHITE;
-                } else {
-                    return panel.getBasePageBackgroundColor();
-                }
-            }
-        };
-    }
-
-    /**
-     * Handles the resizing of the viewport.
-     * @param width  The new width in dp.
-     * @param height The new height in dp.
-     */
-    @Override
-    protected void onSizeChanged(float width, float height) {
-        if (mBaseTab != null) {
-            OverlayPanel panel = mPanelManager.getActivePanel();
-            if (panel != null) {
-                mBaseTab.setMaxContentWidth(width);
-                mBaseTab.setMaxContentHeight(panel.getTabHeight());
-                mBaseTab.setContentSize(width, panel.getTabHeight());
-            }
-        }
-    }
-
-    @Override
-    public View getViewForInteraction() {
-        OverlayPanel panel = mPanelManager.getActivePanel();
-        if (panel != null) {
-            ContentViewCore content = panel.getContentViewCore();
-            if (content != null) return content.getContainerView();
-        }
-
-        return super.getViewForInteraction();
-    }
-
-    @Override
-    public int getSizingFlags() {
-        return SizingFlags.HELPER_SUPPORTS_FULLSCREEN;
-    }
-
-    public float getTopControlsOffset(float currentOffsetDp) {
-        return MathUtils.clamp(mBaseTab.getY(), -mPanelManager.getActivePanel().getToolbarHeight(),
-                Math.min(currentOffsetDp, 0f));
-    }
-
-    @Override
-    protected void updateLayout(long time, long dt) {
-        super.updateLayout(time, dt);
-        if (mBaseTab == null) return;
-
-        OverlayPanel panel = mPanelManager.getActivePanel();
-        if (panel != null) {
-            mBaseTab.setY(panel.getBasePageY());
-            mBaseTab.setBrightness(panel.getBasePageBrightness());
-        }
-
-        boolean needUpdate = mBaseTab.updateSnap(dt);
-        if (needUpdate) requestUpdate();
-    }
-
-    @Override
-    public boolean handlesTabCreating() {
-        // Prevents the new Tab animation from happening when promoting to a new Tab.
-        startHiding(mBaseTab.getId(), false);
-        // Updates TopControls' State so the Toolbar becomes visible.
-        // TODO(pedrosimonetti): The transition when promoting to a new tab is only smooth
-        // if the SearchContentView's vertical scroll position is zero. Otherwise the
-        // ContentView will appear to jump in the screen. Coordinate with @dtrainor to solve
-        // this problem.
-        mPanelManager.getActivePanel().updateTopControlsState(TopControlsState.BOTH, false);
-        doneHiding();
-        return true;
-    }
-
-    @Override
-    public void show(long time, boolean animate) {
-        // TODO(changwan): use SceneOverlayTree's setContentTree() instead once we refactor
-        // ContextualSearchSupportedLayout into LayoutHelper.
-        mTabListSceneLayer.setContentTree(super.getSceneLayer());
-
-        super.show(time, animate);
-
-        resetLayout();
-        createBaseLayoutTab(mBaseTab);
-    }
-
-    /**
-     * Resets the Layout.
-     */
-    private void resetLayout() {
-        mLayoutTabs = null;
-        mBaseTab = null;
-    }
-
-    /**
-     * Creates the Base Page's LayoutTab to be presented in the screen.
-     *
-     * @param layoutTab The {@link Layout} instance.
-     */
-    private void createBaseLayoutTab(LayoutTab layoutTab) {
-        if (mTabModelSelector == null) return;
-
-        int baseTabId = mTabModelSelector.getCurrentTabId();
-        if (baseTabId == Tab.INVALID_TAB_ID) return;
-
-        mBaseTab = createLayoutTab(
-                baseTabId, mTabModelSelector.isIncognitoSelected(), NO_CLOSE_BUTTON, NO_TITLE);
-
-        assert mBaseTab != null;
-        mBaseTab.setScale(1.f);
-        mBaseTab.setBorderScale(1.f);
-        mBaseTab.setBorderAlpha(0.f);
-
-        mLayoutTabs = new LayoutTab[] {mBaseTab};
-    }
-
-    // ============================================================================================
-    // Panel Host
-    // ============================================================================================
-
-    @Override
-    protected void hideContextualSearch(boolean immediately) {
-        if (isActive()) {
-            startHiding(Tab.INVALID_TAB_ID, false);
-            if (immediately) doneHiding();
-        }
-    }
-
-    // ============================================================================================
-    // cc::Layer Events
-    // ============================================================================================
-
-    @Override
-    public void onDown(long time, float x, float y) {
-        mInitialPanelTouchY = y;
-        mPanelManager.getActivePanel().handleSwipeStart();
-    }
-
-    @Override
-    public void drag(long time, float x, float y, float deltaX, float deltaY) {
-        final float ty = y - mInitialPanelTouchY;
-
-        mPanelManager.getActivePanel().handleSwipeMove(ty);
-    }
-
-    @Override
-    public void onUpOrCancel(long time) {
-        mPanelManager.getActivePanel().handleSwipeEnd();
-    }
-
-    @Override
-    public void fling(long time, float x, float y, float velocityX, float velocityY) {
-        mPanelManager.getActivePanel().handleFling(velocityY);
-    }
-
-    @Override
-    public void click(long time, float x, float y) {
-        mPanelManager.getActivePanel().handleClick(time, x, y);
-    }
-
-    // ============================================================================================
-    // Android View Events
-    // ============================================================================================
-
-    @Override
-    public void swipeStarted(long time, ScrollDirection direction, float x, float y) {
-        mPanelManager.getActivePanel().handleSwipeStart();
-    }
-
-    @Override
-    public void swipeUpdated(long time, float x, float y, float dx, float dy, float tx, float ty) {
-        mPanelManager.getActivePanel().handleSwipeMove(ty);
-    }
-
-    @Override
-    public void swipeFlingOccurred(
-            long time, float x, float y, float tx, float ty, float vx, float vy) {
-        mPanelManager.getActivePanel().handleFling(vy);
-    }
-
-    @Override
-    public void swipeFinished(long time) {
-        mPanelManager.getActivePanel().handleSwipeEnd();
-    }
-
-    @Override
-    public void swipeCancelled(long time) {
-        swipeFinished(time);
-    }
-
-    @Override
-    public boolean onBackPressed() {
-        mPanelManager.getActivePanel().closePanel(StateChangeReason.BACK_PRESS, true);
-        return true;
-    }
-
-    @Override
-    protected SceneLayer getSceneLayer() {
-        return mTabListSceneLayer;
-    }
-
-    @Override
-    protected void updateSceneLayer(Rect viewport, Rect contentViewport,
-            LayerTitleCache layerTitleCache, TabContentManager tabContentManager,
-            ResourceManager resourceManager, ChromeFullscreenManager fullscreenManager) {
-        super.updateSceneLayer(viewport, contentViewport, layerTitleCache, tabContentManager,
-                resourceManager, fullscreenManager);
-        assert mTabListSceneLayer != null;
-        mTabListSceneLayer.pushLayers(getContext(), viewport, contentViewport, this,
-                layerTitleCache, tabContentManager, resourceManager);
-    }
-
-    @Override
-    public boolean forceHideTopControlsAndroidView() {
-        return true;
-    }
-
-    public float getToolbarBrightness() {
-        return mPanelManager.getActivePanel().getBasePageBrightness();
-    }
-
-    @Override
-    public boolean isTabStripEventFilterEnabled() {
-        return false;
-    }
-}