Upstream oodles of Chrome for Android code into Chromium.

chrome/android/java_staging/src/org/chromium/chrome/browser/toolbar/ToolbarHelper.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.toolbar;
+
+import android.graphics.Bitmap;
+import android.os.SystemClock;
+import android.support.v7.app.ActionBar;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.FrameLayout;
+
+import com.google.android.apps.chrome.R;
+
+import org.chromium.base.ThreadUtils;
+import org.chromium.base.metrics.RecordHistogram;
+import org.chromium.base.metrics.RecordUserAction;
+import org.chromium.chrome.browser.CompositorChromeActivity;
+import org.chromium.chrome.browser.ContextualMenuBar;
+import org.chromium.chrome.browser.CustomSelectionActionModeCallback;
+import org.chromium.chrome.browser.Tab;
+import org.chromium.chrome.browser.TabObserver;
+import org.chromium.chrome.browser.WindowDelegate;
+import org.chromium.chrome.browser.appmenu.AppMenuHandler;
+import org.chromium.chrome.browser.appmenu.ChromeAppMenuPropertiesDelegate;
+import org.chromium.chrome.browser.compositor.Invalidator;
+import org.chromium.chrome.browser.compositor.layouts.LayoutManager;
+import org.chromium.chrome.browser.compositor.layouts.OverviewModeBehavior;
+import org.chromium.chrome.browser.tabmodel.TabModelSelector;
+import org.chromium.chrome.browser.tabmodel.TabModelSelectorTabObserver;
+import org.chromium.chrome.browser.toolbar.ToolbarManager.MenuDelegatePhone;
+import org.chromium.chrome.browser.widget.ControlContainer;
+import org.chromium.chrome.browser.widget.findinpage.FindToolbarManager;
+import org.chromium.ui.base.DeviceFormFactor;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Helper class to handle inflating the right view hierarchy and initialize it.
+ */
+public class ToolbarHelper {
+    /**
+     * The number of ms to wait before reporting to UMA omnibox interaction metrics.
+     */
+    private static final int RECORD_UMA_PERFORMANCE_METRICS_DELAY_MS = 30000;
+
+    private static final int MIN_FOCUS_TIME_FOR_UMA_HISTOGRAM_MS = 1000;
+    private static final int MAX_FOCUS_TIME_FOR_UMA_HISTOGRAM_MS = 30000;
+
+    protected final CompositorChromeActivity mActivity;
+    private final ToolbarControlContainer mControlContainer;
+    private TabObserver mTabObserver;
+
+    private final Toolbar mToolbar;
+    private final ToolbarManager mToolbarManager;
+
+    private final ContextualMenuBar mContextualMenuBar;
+    private final ContextualMenuBar.ActionBarDelegate mActionBarDelegate;
+
+    private boolean mInitialized;
+
+    /**
+     * Constructor for {@link ToolbarHelper}.
+     * @param activity The current activity.
+     * @param controlContainer {@link ControlContainer} that the Toolbar View Hierarchy will be
+     *        attached to.
+     * @param appMenuHandler Controller for showing/hiding app menu.
+     * @param appMenuPropertiesDelegate Controller for app menu item visibility.
+     * @param invalidator Notifier to toolbar to force view invalidations.
+     */
+    public ToolbarHelper(CompositorChromeActivity activity,
+            ToolbarControlContainer controlContainer,
+            final AppMenuHandler appMenuHandler,
+            final ChromeAppMenuPropertiesDelegate appMenuPropertiesDelegate,
+            Invalidator invalidator) {
+        mActivity = activity;
+        mControlContainer = controlContainer;
+        assert mControlContainer != null;
+
+        mToolbarManager = new ToolbarManager(mControlContainer, appMenuHandler);
+        mToolbar = mToolbarManager.getToolbar();
+
+        mActionBarDelegate = new ContextualMenuBar.ActionBarDelegate() {
+            @Override
+            public void setControlTopMargin(int margin) {
+                FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams)
+                        mControlContainer.getLayoutParams();
+                lp.topMargin = margin;
+                mControlContainer.setLayoutParams(lp);
+            }
+
+            @Override
+            public int getControlTopMargin() {
+                FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams)
+                        mControlContainer.getLayoutParams();
+                return lp.topMargin;
+            }
+
+            @Override
+            public ActionBar getSupportActionBar() {
+                return mActivity.getSupportActionBar();
+            }
+
+            @Override
+            public void setActionBarBackgroundVisibility(boolean visible) {
+                int visibility = visible ? View.VISIBLE : View.GONE;
+                mActivity.findViewById(R.id.action_bar_black_background).setVisibility(visibility);
+                // TODO(tedchoc): Add support for changing the color based on the brand color.
+            }
+        };
+        mContextualMenuBar = new ContextualMenuBar(activity, mActionBarDelegate);
+        mContextualMenuBar.setCustomSelectionActionModeCallback(
+                new CustomSelectionActionModeCallback());
+
+        mToolbar.setPaintInvalidator(invalidator);
+        mToolbarManager.setDefaultActionModeCallbackForTextEdit(
+                mContextualMenuBar.getCustomSelectionActionModeCallback());
+        mToolbar.getLocationBar().initializeControls(
+                new WindowDelegate(mActivity.getWindow()),
+                mContextualMenuBar.getActionBarDelegate(),
+                mActivity.getWindowAndroid());
+        mToolbar.getLocationBar().setIgnoreURLBarModification(false);
+
+        MenuDelegatePhone menuDelegate = new MenuDelegatePhone() {
+            @Override
+            public void updateReloadButtonState(boolean isLoading) {
+                if (appMenuPropertiesDelegate != null) {
+                    appMenuPropertiesDelegate.loadingStateChanged(isLoading);
+                    appMenuHandler.menuItemContentChanged(R.id.icon_row_menu_id);
+                }
+            }
+        };
+        mToolbarManager.setMenuDelegatePhone(menuDelegate);
+    }
+
+    /**
+     * Initializes the controls for the current toolbar mode.
+     * @param findToolbarManager Manager for find in page.
+     * @param overviewModeBehavior Interface to query and listen to the overview state.
+     * @param layoutManager A {@link LayoutManager} instance to use to watch for scene changes.
+     * @param tabSwitcherClickHandler Click listener for the tab switcher button.
+     * @param newTabClickHandler Click listener for the new tab button.
+     * @param bookmarkClickHandler Click listener for the bookmark button.
+     */
+    public void initializeControls(FindToolbarManager findToolbarManager,
+            OverviewModeBehavior overviewModeBehavior,
+            LayoutManager layoutManager,
+            OnClickListener tabSwitcherClickHandler,
+            OnClickListener newTabClickHandler,
+            OnClickListener bookmarkClickHandler,
+            OnClickListener hostedBackClickHandler) {
+
+
+        TabModelSelector selector = mActivity.getTabModelSelector();
+        mTabObserver = new TabModelSelectorTabObserver(selector) {
+            @Override
+            public void onContextualActionBarVisibilityChanged(Tab tab, boolean visible) {
+                if (visible) RecordUserAction.record("MobileActionBarShown");
+                ActionBar actionBar = mActionBarDelegate.getSupportActionBar();
+                if (!visible && actionBar != null) actionBar.hide();
+                if (DeviceFormFactor.isTablet(mActivity)) {
+                    if (visible) {
+                        mContextualMenuBar.showControls();
+                    } else {
+                        mContextualMenuBar.hideControls();
+                    }
+                }
+            }
+        };
+        mToolbarManager.initializeWithNative(
+                selector, mActivity.getFullscreenManager(),
+                findToolbarManager, overviewModeBehavior, layoutManager);
+        mToolbar.getLocationBar().updateVisualsForState();
+        mToolbar.getLocationBar().setUrlToPageUrl();
+        mToolbar.setOnTabSwitcherClickHandler(tabSwitcherClickHandler);
+        mToolbar.setOnNewTabClickHandler(newTabClickHandler);
+        mToolbar.setBookmarkClickHandler(bookmarkClickHandler);
+        mToolbar.setHostedBackClickHandler(hostedBackClickHandler);
+        mInitialized = true;
+    }
+
+    /**
+     * @return The menu bar for handling contextual text selection.
+     */
+    public ContextualMenuBar getContextualMenuBar() {
+        return mContextualMenuBar;
+    }
+
+    /**
+     * @return Whether the UI has been initialized.
+     */
+    public boolean isInitialized() {
+        return mInitialized;
+    }
+
+    /**
+     * @return The view that the pop up menu should be anchored to on the UI.
+     */
+    public View getMenuAnchor() {
+        return mToolbar.getLocationBar().getMenuAnchor();
+    }
+
+    /**
+     * Should be called when the accessibility state changes.
+     * @param enabled Whether or not accessibility and touch exploration are enabled.
+     */
+    public void onAccessibilityStatusChanged(boolean enabled) {
+        mToolbarManager.onAccessibilityStatusChanged(enabled);
+    }
+
+    /**
+     * Update the brand color for the titlebar.
+     * @param color The current theme color used.
+     */
+    public void setThemeColor(int color) {
+        mToolbarManager.updatePrimaryColor(color);
+    }
+
+    /**
+     * Adds a custom action button to the {@link Toolbar} if it is supported.
+     * @param buttonSource The {@link Bitmap} resource to use as the source for the button.
+     * @param listener The {@link OnClickListener} to use for clicks to the button.
+     */
+    public void addCustomActionButton(Bitmap buttonSource, OnClickListener listener) {
+        mToolbar.addCustomActionButton(buttonSource, listener);
+    }
+
+    /**
+     * Call to tear down all of the toolbar dependencies.
+     */
+    public void destroy() {
+        Tab activityTab = mActivity.getActivityTab();
+        if (activityTab != null) activityTab.removeObserver(mTabObserver);
+    }
+
+    /**
+     * Called when the orientation of the activity has changed.
+     */
+    public void onOrientationChange() {
+        mContextualMenuBar.showControlsOnOrientationChange();
+    }
+
+    /**
+     * Navigates the current Tab back.
+     * @return Whether or not the current Tab did go back.
+     */
+    public boolean back() {
+        return mToolbarManager.back();
+    }
+
+    /**
+     * Focuses or unfocuses the URL bar.
+     * @param focused Whether URL bar should be focused.
+     */
+    public void setUrlBarFocus(boolean focused) {
+        if (!isInitialized()) return;
+        mToolbar.getLocationBar().setUrlBarFocus(focused);
+    }
+
+    /**
+     * @return Whether {@link Toolbar} has drawn at least once.
+     */
+    public boolean hasDoneFirstDraw() {
+        return mToolbar.getFirstDrawTime() != 0;
+    }
+
+    /**
+     * Handle all necessary tasks that can be delayed until initialization completes.
+     */
+    public void onDeferredStartup() {
+        // Record startup performance statistics
+        long elapsedTime = SystemClock.elapsedRealtime() - mActivity.getOnCreateTimestampMs();
+        if (elapsedTime < RECORD_UMA_PERFORMANCE_METRICS_DELAY_MS) {
+            ThreadUtils.postOnUiThreadDelayed(new Runnable() {
+                @Override
+                public void run() {
+                    onDeferredStartup();
+                }
+            }, RECORD_UMA_PERFORMANCE_METRICS_DELAY_MS - elapsedTime);
+        }
+
+        long creationTime = mActivity.getOnCreateTimestampMs();
+        String className = mActivity.getClass().getSimpleName();
+        RecordHistogram.recordTimesHistogram("MobileStartup.ToolbarFirstDrawTime." + className,
+                mToolbar.getFirstDrawTime() - creationTime, TimeUnit.MILLISECONDS);
+
+        long firstFocusTime = mToolbar.getLocationBar().getFirstUrlBarFocusTime();
+        if (firstFocusTime != 0) {
+            RecordHistogram.recordCustomTimesHistogram(
+                    "MobileStartup.ToolbarFirstFocusTime." + className,
+                    firstFocusTime - creationTime, MIN_FOCUS_TIME_FOR_UMA_HISTOGRAM_MS,
+                    MAX_FOCUS_TIME_FOR_UMA_HISTOGRAM_MS, TimeUnit.MILLISECONDS, 50);
+        }
+    }
+
+    /**
+     * Finish any toolbar animations.
+     */
+    public void finishAnimations() {
+        if (isInitialized()) mToolbar.finishAnimations();
+    }
+}