Merge java_staging/src into java/src.

chrome/android/java_staging/src/org/chromium/chrome/browser/widget/emptybackground/EmptyBackgroundViewWrapper.java

Index: chrome/android/java_staging/src/org/chromium/chrome/browser/widget/emptybackground/EmptyBackgroundViewWrapper.java
diff --git a/chrome/android/java_staging/src/org/chromium/chrome/browser/widget/emptybackground/EmptyBackgroundViewWrapper.java b/chrome/android/java_staging/src/org/chromium/chrome/browser/widget/emptybackground/EmptyBackgroundViewWrapper.java
deleted file mode 100644
index 46890ebccbefca4a2daae3843aa8567c3eaf2561..0000000000000000000000000000000000000000
--- a/chrome/android/java_staging/src/org/chromium/chrome/browser/widget/emptybackground/EmptyBackgroundViewWrapper.java
+++ /dev/null
@@ -1,158 +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.widget.emptybackground;
-
-import android.app.Activity;
-import android.view.View;
-import android.view.View.OnAttachStateChangeListener;
-import android.view.ViewStub;
-
-import org.chromium.chrome.R;
-import org.chromium.chrome.browser.Tab;
-import org.chromium.chrome.browser.appmenu.AppMenuHandler;
-import org.chromium.chrome.browser.compositor.layouts.OverviewModeBehavior;
-import org.chromium.chrome.browser.tabmodel.EmptyTabModelObserver;
-import org.chromium.chrome.browser.tabmodel.EmptyTabModelSelectorObserver;
-import org.chromium.chrome.browser.tabmodel.TabCreatorManager.TabCreator;
-import org.chromium.chrome.browser.tabmodel.TabModel;
-import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
-import org.chromium.chrome.browser.tabmodel.TabModelObserver;
-import org.chromium.chrome.browser.tabmodel.TabModelSelector;
-import org.chromium.chrome.browser.tabmodel.TabModelSelectorObserver;
-
-import java.util.List;
-
-/**
- * Handler for {@link EmptyBackgroundViewTablet}.
- */
-public class EmptyBackgroundViewWrapper {
-    private final Activity mActivity;
-    private final TabModelSelector mTabModelSelector;
-    private final TabCreator mTabCreator;
-    private final TabModelObserver mTabModelObserver;
-    private final TabModelSelectorObserver mTabModelSelectorObserver;
-    private final OverviewModeBehavior mOverviewModeBehavior;
-
-    private EmptyBackgroundViewTablet mBackgroundView;
-    private final AppMenuHandler mMenuHandler;
-
-    /**
-     * Creates a {@link EmptyBackgroundViewWrapper} instance that will lazily inflate.
-     * @param selector             A {@link TabModelSelector} that will be used to query system
-     *                             state.
-     * @param tabCreator           A {@link TabCreator} that will be used to open the New Tab Page.
-     * @param activity             An {@link Activity} that represents a parent of the
-     *                             {@link android.view.ViewStub}.
-     * @param menuHandler          A {@link AppMenuHandler} to handle menu touch events.
-     * @param overviewModeBehavior A {@link OverviewModeBehavior} instance to detect when the app
-     *                             is in overview mode.
-     */
-    public EmptyBackgroundViewWrapper(TabModelSelector selector, TabCreator tabCreator,
-            Activity activity, AppMenuHandler menuHandler,
-            OverviewModeBehavior overviewModeBehavior) {
-        mActivity = activity;
-        mMenuHandler = menuHandler;
-        mTabModelSelector = selector;
-        mTabCreator = tabCreator;
-        mOverviewModeBehavior = overviewModeBehavior;
-        mTabModelObserver = new EmptyTabModelObserver() {
-            @Override
-            public void didAddTab(Tab tab, TabLaunchType type) {
-                updateEmptyContainerState();
-            }
-
-            @Override
-            public void tabClosureUndone(Tab tab) {
-                updateEmptyContainerState();
-            }
-
-            @Override
-            public void didCloseTab(Tab tab) {
-                updateEmptyContainerState();
-            }
-
-            @Override
-            public void tabPendingClosure(Tab tab) {
-                updateEmptyContainerState();
-            }
-
-            @Override
-            public void allTabsPendingClosure(List<Integer> tabIds) {
-                updateEmptyContainerState();
-            }
-        };
-        mTabModelSelectorObserver = new EmptyTabModelSelectorObserver() {
-            @Override
-            public void onTabModelSelected(TabModel newModel, TabModel oldModel) {
-                updateEmptyContainerState();
-            }
-        };
-    }
-
-    /**
-     * Initialize the wrapper to listen for the proper notifications.
-     */
-    public void initialize() {
-        for (TabModel model : mTabModelSelector.getModels()) model.addObserver(mTabModelObserver);
-        mTabModelSelector.addObserver(mTabModelSelectorObserver);
-    }
-
-    /**
-     * Unregister all dependencies and listeners.
-     */
-    public void uninitialize() {
-        for (TabModel model : mTabModelSelector.getModels()) {
-            model.removeObserver(mTabModelObserver);
-        }
-        mTabModelSelector.removeObserver(mTabModelSelectorObserver);
-    }
-
-    private void inflateViewIfNecessary() {
-        if (mBackgroundView != null) return;
-
-        mBackgroundView = (EmptyBackgroundViewTablet) ((ViewStub) mActivity.findViewById(
-                R.id.empty_container_stub)).inflate();
-        mBackgroundView.setTabModelSelector(mTabModelSelector);
-        mBackgroundView.setTabCreator(mTabCreator);
-        mBackgroundView.setMenuOnTouchListener(mMenuHandler);
-        mBackgroundView.addOnAttachStateChangeListener(new OnAttachStateChangeListener() {
-            @Override
-            public void onViewDetachedFromWindow(View v) {
-                uninitialize();
-            }
-
-            @Override
-            public void onViewAttachedToWindow(View v) {
-            }
-        });
-    }
-
-    private void updateEmptyContainerState() {
-        boolean showEmptyBackground = shouldShowEmptyContainer();
-        if (showEmptyBackground) {
-            inflateViewIfNecessary();
-        }
-
-        if (mBackgroundView != null) {
-            mBackgroundView.setEmptyContainerState(showEmptyBackground);
-        }
-    }
-
-    private boolean shouldShowEmptyContainer() {
-        TabModel model = mTabModelSelector.getModel(false);
-        if (model == null) {
-            return false;
-        }
-        boolean isIncognitoEmpty = mTabModelSelector.getModel(true).getCount() == 0;
-        boolean incognitoSelected = mTabModelSelector.isIncognitoSelected();
-
-        // Only show the empty container if:
-        // 1. There are no tabs in the normal TabModel AND
-        // 2. Overview mode is not showing AND
-        // 3. We're in the normal TabModel OR there are no tabs present in either model
-        return model.getCount() == 0 && !mOverviewModeBehavior.overviewVisible()
-                && (!incognitoSelected || isIncognitoEmpty);
-    }
-}