The Tor Browser: mobile/android/base/TabsPanel.java@6474c204b198 (annotated)

mobile/android/base/TabsPanel.java@6474c204b198 (annotated)

mobile/android/base/TabsPanel.java

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- 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;
 import org.mozilla.gecko.Telemetry;
 import org.mozilla.gecko.TelemetryContract;
 import org.mozilla.gecko.animation.PropertyAnimator;
 import org.mozilla.gecko.animation.ViewHelper;
 import org.mozilla.gecko.widget.IconTabWidget;
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Rect;
 import android.os.Build;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.FrameLayout;
 import android.widget.ImageButton;
 import android.widget.LinearLayout;
 import android.widget.RelativeLayout;
 public class TabsPanel extends LinearLayout
                        implements LightweightTheme.OnChangeListener,
                                   IconTabWidget.OnTabChangedListener {
     private static final String LOGTAG = "GeckoTabsPanel";
     public static enum Panel {
         NORMAL_TABS,
         PRIVATE_TABS,
         REMOTE_TABS
     }
     public static interface PanelView {
         public ViewGroup getLayout();
         public void setTabsPanel(TabsPanel panel);
         public void show();
         public void hide();
         public boolean shouldExpand();
     }
     public static interface TabsLayoutChangeListener {
         public void onTabsLayoutChange(int width, int height);
     }
     private Context mContext;
     private final GeckoApp mActivity;
     private final LightweightTheme mTheme;
     private RelativeLayout mHeader;
     private TabsListContainer mTabsContainer;
     private PanelView mPanel;
     private PanelView mPanelNormal;
     private PanelView mPanelPrivate;
     private PanelView mPanelRemote;
     private RelativeLayout mFooter;
     private TabsLayoutChangeListener mLayoutChangeListener;
     private IconTabWidget mTabWidget;
     private static ImageButton mAddTab;
     private Panel mCurrentPanel;
     private boolean mIsSideBar;
     private boolean mVisible;
     public TabsPanel(Context context, AttributeSet attrs) {
         super(context, attrs);
         mContext = context;
         mActivity = (GeckoApp) context;
         mTheme = ((GeckoApplication) context.getApplicationContext()).getLightweightTheme();
         setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,
                                                       LinearLayout.LayoutParams.FILL_PARENT));
         setOrientation(LinearLayout.VERTICAL);
         mCurrentPanel = Panel.NORMAL_TABS;
         mVisible = false;
         mIsSideBar = false;
         LayoutInflater.from(context).inflate(R.layout.tabs_panel, this);
         initialize();
     }
     private void initialize() {
         mHeader = (RelativeLayout) findViewById(R.id.tabs_panel_header);
         mTabsContainer = (TabsListContainer) findViewById(R.id.tabs_container);
         mPanelNormal = (PanelView) findViewById(R.id.normal_tabs);
         mPanelNormal.setTabsPanel(this);
         mPanelPrivate = (PanelView) findViewById(R.id.private_tabs);
         mPanelPrivate.setTabsPanel(this);
         mPanelRemote = (PanelView) findViewById(R.id.synced_tabs);
         mPanelRemote.setTabsPanel(this);
         mFooter = (RelativeLayout) findViewById(R.id.tabs_panel_footer);
         mAddTab = (ImageButton) findViewById(R.id.add_tab);
         mAddTab.setOnClickListener(new Button.OnClickListener() {
             @Override
             public void onClick(View v) {
                 TabsPanel.this.addTab();
             }
         });
         mTabWidget = (IconTabWidget) findViewById(R.id.tab_widget);
         mTabWidget.addTab(R.drawable.tabs_normal, R.string.tabs_normal);
         mTabWidget.addTab(R.drawable.tabs_private, R.string.tabs_private);
         if (!GeckoProfile.get(mContext).inGuestMode()) {
             mTabWidget.addTab(R.drawable.tabs_synced, R.string.tabs_synced);
         }
         mTabWidget.setTabSelectionListener(this);
     }
     private void addTab() {
         if (mCurrentPanel == Panel.NORMAL_TABS) {
             Telemetry.sendUIEvent(TelemetryContract.Event.ACTION, TelemetryContract.Method.ACTIONBAR, "new_tab");
             mActivity.addTab();
         } else {
             Telemetry.sendUIEvent(TelemetryContract.Event.ACTION, TelemetryContract.Method.ACTIONBAR, "new_private_tab");
             mActivity.addPrivateTab();
         }
         mActivity.autoHideTabs();
     }
     @Override
     public void onTabChanged(int index) {
         if (index == 0)
             show(Panel.NORMAL_TABS, false);
         else if (index == 1)
             show(Panel.PRIVATE_TABS, false);
         else
             show(Panel.REMOTE_TABS, false);
     }
     private static int getTabContainerHeight(TabsListContainer listContainer) {
         Resources resources = listContainer.getContext().getResources();
         PanelView panelView = listContainer.getCurrentPanelView();
         if (panelView != null && !panelView.shouldExpand()) {
             return resources.getDimensionPixelSize(R.dimen.tabs_tray_horizontal_height);
         }
         int actionBarHeight = resources.getDimensionPixelSize(R.dimen.browser_toolbar_height);
         int screenHeight = resources.getDisplayMetrics().heightPixels;
         Rect windowRect = new Rect();
         listContainer.getWindowVisibleDisplayFrame(windowRect);
         int windowHeight = windowRect.bottom - windowRect.top;
         // The web content area should have at least 1.5x the height of the action bar.
         // The tabs panel shouldn't take less than 50% of the screen height and can take
         // up to 80% of the window height.
         return (int) Math.max(screenHeight * 0.5f,
                               Math.min(windowHeight - 2.5f * actionBarHeight, windowHeight * 0.8f) - actionBarHeight);
     }
     @Override
     public void onAttachedToWindow() {
         super.onAttachedToWindow();
         mTheme.addListener(this);
     }
     @Override
     public void onDetachedFromWindow() {
         super.onDetachedFromWindow();
         mTheme.removeListener(this);
     }
     @Override
     public void onLightweightThemeChanged() {
         final int background = getResources().getColor(R.color.background_tabs);
         final LightweightThemeDrawable drawable = mTheme.getColorDrawable(this, background, true);
         if (drawable == null)
             return;
         drawable.setAlpha(34, 0);
         setBackgroundDrawable(drawable);
     }
     @Override
     public void onLightweightThemeReset() {
         setBackgroundColor(getContext().getResources().getColor(R.color.background_tabs));
     }
     @Override
     protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
         super.onLayout(changed, left, top, right, bottom);
         onLightweightThemeChanged();
     }
     // Tabs List Container holds the ListView
     public static class TabsListContainer extends FrameLayout {
         public TabsListContainer(Context context, AttributeSet attrs) {
             super(context, attrs);
         }
         public PanelView getCurrentPanelView() {
             final int childCount = getChildCount();
             for (int i = 0; i < childCount; i++) {
                 View child = getChildAt(i);
                 if (!(child instanceof PanelView))
                     continue;
                 if (child.getVisibility() == View.VISIBLE)
                     return (PanelView) child;
             }
             return null;
         }
         @Override
         protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
             if (!GeckoAppShell.getGeckoInterface().hasTabsSideBar()) {
                 int heightSpec = MeasureSpec.makeMeasureSpec(getTabContainerHeight(TabsListContainer.this), MeasureSpec.EXACTLY);
                 super.onMeasure(widthMeasureSpec, heightSpec);
             } else {
                 super.onMeasure(widthMeasureSpec, heightMeasureSpec);
             }
         }
     }
     // Tabs Panel Toolbar contains the Buttons
     public static class TabsPanelToolbar extends LinearLayout
                                          implements LightweightTheme.OnChangeListener {
         private final LightweightTheme mTheme;
         public TabsPanelToolbar(Context context, AttributeSet attrs) {
             super(context, attrs);
             mTheme = ((GeckoApplication) context.getApplicationContext()).getLightweightTheme();
             setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,
                                                           (int) context.getResources().getDimension(R.dimen.browser_toolbar_height)));
             setOrientation(LinearLayout.HORIZONTAL);
         }
         @Override
         public void onAttachedToWindow() {
             super.onAttachedToWindow();
             mTheme.addListener(this);
         }
         @Override
         public void onDetachedFromWindow() {
             super.onDetachedFromWindow();
             mTheme.removeListener(this);
         }
         @Override
         public void onLightweightThemeChanged() {
             final int background = getResources().getColor(R.color.background_tabs);
             final LightweightThemeDrawable drawable = mTheme.getColorDrawable(this, background);
             if (drawable == null)
                 return;
             drawable.setAlpha(34, 34);
             setBackgroundDrawable(drawable);
         }
         @Override
         public void onLightweightThemeReset() {
             setBackgroundColor(getContext().getResources().getColor(R.color.background_tabs));
         }
         @Override
         protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
             super.onLayout(changed, left, top, right, bottom);
             onLightweightThemeChanged();
         }
     }
     public void show(Panel panel) {
         show(panel, true);
     }
     public void show(Panel panel, boolean shouldResize) {
         if (!isShown())
             setVisibility(View.VISIBLE);
         if (mPanel != null) {
             // Hide the old panel.
             mPanel.hide();
         }
         final boolean showAnimation = !mVisible;
         mVisible = true;
         mCurrentPanel = panel;
         int index = panel.ordinal();
         mTabWidget.setCurrentTab(index);
         if (index == 0) {
             mPanel = mPanelNormal;
         } else if (index == 1) {
             mPanel = mPanelPrivate;
         } else {
             mPanel = mPanelRemote;
         }
         mPanel.show();
         if (mCurrentPanel == Panel.REMOTE_TABS) {
             if (mFooter != null)
                 mFooter.setVisibility(View.GONE);
             mAddTab.setVisibility(View.INVISIBLE);
         } else {
             if (mFooter != null)
                 mFooter.setVisibility(View.VISIBLE);
             mAddTab.setVisibility(View.VISIBLE);
             mAddTab.setImageLevel(index);
         }
         if (shouldResize) {
             if (isSideBar()) {
                 if (showAnimation)
                     dispatchLayoutChange(getWidth(), getHeight());
             } else {
                 int actionBarHeight = mContext.getResources().getDimensionPixelSize(R.dimen.browser_toolbar_height);
                 int height = actionBarHeight + getTabContainerHeight(mTabsContainer);
                 dispatchLayoutChange(getWidth(), height);
             }
         }
     }
     public void hide() {
         if (mVisible) {
             mVisible = false;
             dispatchLayoutChange(0, 0);
         }
     }
     public void refresh() {
         removeAllViews();
         LayoutInflater.from(mContext).inflate(R.layout.tabs_panel, this);
         initialize();
         if (mVisible)
             show(mCurrentPanel);
     }
     public void autoHidePanel() {
         mActivity.autoHideTabs();
     }
     @Override
     public boolean isShown() {
         return mVisible;
     }
     public boolean isSideBar() {
         return mIsSideBar;
     }
     public void setIsSideBar(boolean isSideBar) {
         mIsSideBar = isSideBar;
     }
     public Panel getCurrentPanel() {
         return mCurrentPanel;
     }
     public void prepareTabsAnimation(PropertyAnimator animator) {
         // Not worth doing this on pre-Honeycomb without proper
         // hardware accelerated animations.
         if (Build.VERSION.SDK_INT < 11) {
             return;
         }
         final Resources resources = getContext().getResources();
         final int toolbarHeight = resources.getDimensionPixelSize(R.dimen.browser_toolbar_height);
         final int tabsPanelWidth = getWidth();
         if (mVisible) {
             if (mIsSideBar) {
                 ViewHelper.setTranslationX(mHeader, -tabsPanelWidth);
             } else {
                 ViewHelper.setTranslationY(mHeader, -toolbarHeight);
             }
             if (mIsSideBar) {
                 ViewHelper.setTranslationX(mTabsContainer, -tabsPanelWidth);
             } else {
                 ViewHelper.setTranslationY(mTabsContainer, -toolbarHeight);
                 ViewHelper.setAlpha(mTabsContainer, 0);
             }
             // The footer view is only present on the sidebar
             if (mIsSideBar) {
                 ViewHelper.setTranslationX(mFooter, -tabsPanelWidth);
             }
         }
         if (mIsSideBar) {
             final int translationX = (mVisible ? 0 : -tabsPanelWidth);
             animator.attach(mTabsContainer,
                             PropertyAnimator.Property.TRANSLATION_X,
                             translationX);
             animator.attach(mHeader,
                             PropertyAnimator.Property.TRANSLATION_X,
                             translationX);
             animator.attach(mFooter,
                             PropertyAnimator.Property.TRANSLATION_X,
                             translationX);
         } else {
             final int translationY = (mVisible ? 0 : -toolbarHeight);
             animator.attach(mTabsContainer,
                             PropertyAnimator.Property.ALPHA,
                             mVisible ? 1.0f : 0.0f);
             animator.attach(mTabsContainer,
                             PropertyAnimator.Property.TRANSLATION_Y,
                             translationY);
             animator.attach(mHeader,
                             PropertyAnimator.Property.TRANSLATION_Y,
                             translationY);
         }
         mHeader.setLayerType(View.LAYER_TYPE_HARDWARE, null);
         mTabsContainer.setLayerType(View.LAYER_TYPE_HARDWARE, null);
     }
     public void finishTabsAnimation() {
         if (Build.VERSION.SDK_INT < 11) {
             return;
         }
         mHeader.setLayerType(View.LAYER_TYPE_NONE, null);
         mTabsContainer.setLayerType(View.LAYER_TYPE_NONE, null);
         // If the tray is now hidden, call hide() on current panel and unset it as the current panel
         // to avoid hide() being called again when the tray is opened next.
         if (!mVisible && mPanel != null) {
             mPanel.hide();
             mPanel = null;
         }
     }
     public void setTabsLayoutChangeListener(TabsLayoutChangeListener listener) {
         mLayoutChangeListener = listener;
     }
     private void dispatchLayoutChange(int width, int height) {
         if (mLayoutChangeListener != null)
             mLayoutChangeListener.onTabsLayoutChange(width, height);
     }
 }

The Tor Browser / annotate

mobile/android/base/TabsPanel.java@6474c204b198 (annotated)

mobile/android/base/TabsPanel.java