michael@0: /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko;
michael@0: 
michael@0: import org.mozilla.gecko.Telemetry;
michael@0: import org.mozilla.gecko.TelemetryContract;
michael@0: import org.mozilla.gecko.animation.PropertyAnimator;
michael@0: import org.mozilla.gecko.animation.ViewHelper;
michael@0: import org.mozilla.gecko.widget.IconTabWidget;
michael@0: 
michael@0: import android.content.Context;
michael@0: import android.content.res.Resources;
michael@0: import android.graphics.Rect;
michael@0: import android.os.Build;
michael@0: import android.util.AttributeSet;
michael@0: import android.view.LayoutInflater;
michael@0: import android.view.View;
michael@0: import android.view.ViewGroup;
michael@0: import android.widget.Button;
michael@0: import android.widget.FrameLayout;
michael@0: import android.widget.ImageButton;
michael@0: import android.widget.LinearLayout;
michael@0: import android.widget.RelativeLayout;
michael@0: 
michael@0: public class TabsPanel extends LinearLayout
michael@0:                        implements LightweightTheme.OnChangeListener,
michael@0:                                   IconTabWidget.OnTabChangedListener {
michael@0:     private static final String LOGTAG = "GeckoTabsPanel";
michael@0: 
michael@0:     public static enum Panel {
michael@0:         NORMAL_TABS,
michael@0:         PRIVATE_TABS,
michael@0:         REMOTE_TABS
michael@0:     }
michael@0: 
michael@0:     public static interface PanelView {
michael@0:         public ViewGroup getLayout();
michael@0:         public void setTabsPanel(TabsPanel panel);
michael@0:         public void show();
michael@0:         public void hide();
michael@0:         public boolean shouldExpand();
michael@0:     }
michael@0: 
michael@0:     public static interface TabsLayoutChangeListener {
michael@0:         public void onTabsLayoutChange(int width, int height);
michael@0:     }
michael@0: 
michael@0:     private Context mContext;
michael@0:     private final GeckoApp mActivity;
michael@0:     private final LightweightTheme mTheme;
michael@0:     private RelativeLayout mHeader;
michael@0:     private TabsListContainer mTabsContainer;
michael@0:     private PanelView mPanel;
michael@0:     private PanelView mPanelNormal;
michael@0:     private PanelView mPanelPrivate;
michael@0:     private PanelView mPanelRemote;
michael@0:     private RelativeLayout mFooter;
michael@0:     private TabsLayoutChangeListener mLayoutChangeListener;
michael@0: 
michael@0:     private IconTabWidget mTabWidget;
michael@0:     private static ImageButton mAddTab;
michael@0: 
michael@0:     private Panel mCurrentPanel;
michael@0:     private boolean mIsSideBar;
michael@0:     private boolean mVisible;
michael@0: 
michael@0:     public TabsPanel(Context context, AttributeSet attrs) {
michael@0:         super(context, attrs);
michael@0:         mContext = context;
michael@0:         mActivity = (GeckoApp) context;
michael@0:         mTheme = ((GeckoApplication) context.getApplicationContext()).getLightweightTheme();
michael@0: 
michael@0:         setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,
michael@0:                                                       LinearLayout.LayoutParams.FILL_PARENT));
michael@0:         setOrientation(LinearLayout.VERTICAL);
michael@0: 
michael@0:         mCurrentPanel = Panel.NORMAL_TABS;
michael@0:         mVisible = false;
michael@0: 
michael@0:         mIsSideBar = false;
michael@0: 
michael@0:         LayoutInflater.from(context).inflate(R.layout.tabs_panel, this);
michael@0:         initialize();
michael@0:     }
michael@0: 
michael@0:     private void initialize() {
michael@0:         mHeader = (RelativeLayout) findViewById(R.id.tabs_panel_header);
michael@0:         mTabsContainer = (TabsListContainer) findViewById(R.id.tabs_container);
michael@0: 
michael@0:         mPanelNormal = (PanelView) findViewById(R.id.normal_tabs);
michael@0:         mPanelNormal.setTabsPanel(this);
michael@0: 
michael@0:         mPanelPrivate = (PanelView) findViewById(R.id.private_tabs);
michael@0:         mPanelPrivate.setTabsPanel(this);
michael@0: 
michael@0:         mPanelRemote = (PanelView) findViewById(R.id.synced_tabs);
michael@0:         mPanelRemote.setTabsPanel(this);
michael@0: 
michael@0:         mFooter = (RelativeLayout) findViewById(R.id.tabs_panel_footer);
michael@0: 
michael@0:         mAddTab = (ImageButton) findViewById(R.id.add_tab);
michael@0:         mAddTab.setOnClickListener(new Button.OnClickListener() {
michael@0:             @Override
michael@0:             public void onClick(View v) {
michael@0:                 TabsPanel.this.addTab();
michael@0:             }
michael@0:         });
michael@0: 
michael@0:         mTabWidget = (IconTabWidget) findViewById(R.id.tab_widget);
michael@0: 
michael@0:         mTabWidget.addTab(R.drawable.tabs_normal, R.string.tabs_normal);
michael@0:         mTabWidget.addTab(R.drawable.tabs_private, R.string.tabs_private);
michael@0: 
michael@0:         if (!GeckoProfile.get(mContext).inGuestMode()) {
michael@0:             mTabWidget.addTab(R.drawable.tabs_synced, R.string.tabs_synced);
michael@0:         }
michael@0: 
michael@0:         mTabWidget.setTabSelectionListener(this);
michael@0:     }
michael@0: 
michael@0:     private void addTab() {
michael@0:         if (mCurrentPanel == Panel.NORMAL_TABS) {
michael@0:             Telemetry.sendUIEvent(TelemetryContract.Event.ACTION, TelemetryContract.Method.ACTIONBAR, "new_tab");
michael@0:             mActivity.addTab();
michael@0:         } else {
michael@0:             Telemetry.sendUIEvent(TelemetryContract.Event.ACTION, TelemetryContract.Method.ACTIONBAR, "new_private_tab");
michael@0:             mActivity.addPrivateTab();
michael@0:         }
michael@0: 
michael@0:         mActivity.autoHideTabs();
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void onTabChanged(int index) {
michael@0:         if (index == 0)
michael@0:             show(Panel.NORMAL_TABS, false);
michael@0:         else if (index == 1)
michael@0:             show(Panel.PRIVATE_TABS, false);
michael@0:         else
michael@0:             show(Panel.REMOTE_TABS, false);
michael@0:     }
michael@0: 
michael@0:     private static int getTabContainerHeight(TabsListContainer listContainer) {
michael@0:         Resources resources = listContainer.getContext().getResources();
michael@0: 
michael@0:         PanelView panelView = listContainer.getCurrentPanelView();
michael@0:         if (panelView != null && !panelView.shouldExpand()) {
michael@0:             return resources.getDimensionPixelSize(R.dimen.tabs_tray_horizontal_height);
michael@0:         }
michael@0: 
michael@0:         int actionBarHeight = resources.getDimensionPixelSize(R.dimen.browser_toolbar_height);
michael@0:         int screenHeight = resources.getDisplayMetrics().heightPixels;
michael@0: 
michael@0:         Rect windowRect = new Rect();
michael@0:         listContainer.getWindowVisibleDisplayFrame(windowRect);
michael@0:         int windowHeight = windowRect.bottom - windowRect.top;
michael@0: 
michael@0:         // The web content area should have at least 1.5x the height of the action bar.
michael@0:         // The tabs panel shouldn't take less than 50% of the screen height and can take
michael@0:         // up to 80% of the window height.
michael@0:         return (int) Math.max(screenHeight * 0.5f,
michael@0:                               Math.min(windowHeight - 2.5f * actionBarHeight, windowHeight * 0.8f) - actionBarHeight);
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void onAttachedToWindow() {
michael@0:         super.onAttachedToWindow();
michael@0:         mTheme.addListener(this);
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void onDetachedFromWindow() {
michael@0:         super.onDetachedFromWindow();
michael@0:         mTheme.removeListener(this);
michael@0:     }
michael@0:     
michael@0:     @Override
michael@0:     public void onLightweightThemeChanged() {
michael@0:         final int background = getResources().getColor(R.color.background_tabs);
michael@0:         final LightweightThemeDrawable drawable = mTheme.getColorDrawable(this, background, true);
michael@0:         if (drawable == null)
michael@0:             return;
michael@0: 
michael@0:         drawable.setAlpha(34, 0);
michael@0:         setBackgroundDrawable(drawable);
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void onLightweightThemeReset() {
michael@0:         setBackgroundColor(getContext().getResources().getColor(R.color.background_tabs));
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
michael@0:         super.onLayout(changed, left, top, right, bottom);
michael@0:         onLightweightThemeChanged();
michael@0:     }
michael@0: 
michael@0:     // Tabs List Container holds the ListView
michael@0:     public static class TabsListContainer extends FrameLayout {
michael@0:         public TabsListContainer(Context context, AttributeSet attrs) {
michael@0:             super(context, attrs);
michael@0:         }
michael@0: 
michael@0:         public PanelView getCurrentPanelView() {
michael@0:             final int childCount = getChildCount();
michael@0:             for (int i = 0; i < childCount; i++) {
michael@0:                 View child = getChildAt(i);
michael@0:                 if (!(child instanceof PanelView))
michael@0:                     continue;
michael@0: 
michael@0:                 if (child.getVisibility() == View.VISIBLE)
michael@0:                     return (PanelView) child;
michael@0:             }
michael@0: 
michael@0:             return null;
michael@0:         }
michael@0: 
michael@0:         @Override
michael@0:         protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
michael@0:             if (!GeckoAppShell.getGeckoInterface().hasTabsSideBar()) {
michael@0:                 int heightSpec = MeasureSpec.makeMeasureSpec(getTabContainerHeight(TabsListContainer.this), MeasureSpec.EXACTLY);
michael@0:                 super.onMeasure(widthMeasureSpec, heightSpec);
michael@0:             } else {
michael@0:                 super.onMeasure(widthMeasureSpec, heightMeasureSpec);
michael@0:             }
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     // Tabs Panel Toolbar contains the Buttons
michael@0:     public static class TabsPanelToolbar extends LinearLayout 
michael@0:                                          implements LightweightTheme.OnChangeListener {
michael@0:         private final LightweightTheme mTheme;
michael@0: 
michael@0:         public TabsPanelToolbar(Context context, AttributeSet attrs) {
michael@0:             super(context, attrs);
michael@0:             mTheme = ((GeckoApplication) context.getApplicationContext()).getLightweightTheme();
michael@0: 
michael@0:             setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,
michael@0:                                                           (int) context.getResources().getDimension(R.dimen.browser_toolbar_height)));
michael@0: 
michael@0:             setOrientation(LinearLayout.HORIZONTAL);
michael@0:         }
michael@0: 
michael@0:         @Override
michael@0:         public void onAttachedToWindow() {
michael@0:             super.onAttachedToWindow();
michael@0:             mTheme.addListener(this);
michael@0:         }
michael@0: 
michael@0:         @Override
michael@0:         public void onDetachedFromWindow() {
michael@0:             super.onDetachedFromWindow();
michael@0:             mTheme.removeListener(this);
michael@0:         }
michael@0:     
michael@0:         @Override
michael@0:         public void onLightweightThemeChanged() {
michael@0:             final int background = getResources().getColor(R.color.background_tabs);
michael@0:             final LightweightThemeDrawable drawable = mTheme.getColorDrawable(this, background);
michael@0:             if (drawable == null)
michael@0:                 return;
michael@0: 
michael@0:             drawable.setAlpha(34, 34);
michael@0:             setBackgroundDrawable(drawable);
michael@0:         }
michael@0: 
michael@0:         @Override
michael@0:         public void onLightweightThemeReset() {
michael@0:             setBackgroundColor(getContext().getResources().getColor(R.color.background_tabs));
michael@0:         }
michael@0: 
michael@0:         @Override
michael@0:         protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
michael@0:             super.onLayout(changed, left, top, right, bottom);
michael@0:             onLightweightThemeChanged();
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     public void show(Panel panel) {
michael@0:         show(panel, true);
michael@0:     }
michael@0: 
michael@0:     public void show(Panel panel, boolean shouldResize) {
michael@0:         if (!isShown())
michael@0:             setVisibility(View.VISIBLE);
michael@0: 
michael@0:         if (mPanel != null) {
michael@0:             // Hide the old panel.
michael@0:             mPanel.hide();
michael@0:         }
michael@0: 
michael@0:         final boolean showAnimation = !mVisible;
michael@0:         mVisible = true;
michael@0:         mCurrentPanel = panel;
michael@0: 
michael@0:         int index = panel.ordinal();
michael@0:         mTabWidget.setCurrentTab(index);
michael@0: 
michael@0:         if (index == 0) {
michael@0:             mPanel = mPanelNormal;
michael@0:         } else if (index == 1) {
michael@0:             mPanel = mPanelPrivate;
michael@0:         } else {
michael@0:             mPanel = mPanelRemote;
michael@0:         }
michael@0: 
michael@0:         mPanel.show();
michael@0: 
michael@0:         if (mCurrentPanel == Panel.REMOTE_TABS) {
michael@0:             if (mFooter != null)
michael@0:                 mFooter.setVisibility(View.GONE);
michael@0: 
michael@0:             mAddTab.setVisibility(View.INVISIBLE);
michael@0:         } else {
michael@0:             if (mFooter != null)
michael@0:                 mFooter.setVisibility(View.VISIBLE);
michael@0: 
michael@0:             mAddTab.setVisibility(View.VISIBLE);
michael@0:             mAddTab.setImageLevel(index);
michael@0:         }
michael@0: 
michael@0:         if (shouldResize) {
michael@0:             if (isSideBar()) {
michael@0:                 if (showAnimation)
michael@0:                     dispatchLayoutChange(getWidth(), getHeight());
michael@0:             } else {
michael@0:                 int actionBarHeight = mContext.getResources().getDimensionPixelSize(R.dimen.browser_toolbar_height);
michael@0:                 int height = actionBarHeight + getTabContainerHeight(mTabsContainer);
michael@0:                 dispatchLayoutChange(getWidth(), height);
michael@0:             }
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     public void hide() {
michael@0:         if (mVisible) {
michael@0:             mVisible = false;
michael@0:             dispatchLayoutChange(0, 0);
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     public void refresh() {
michael@0:         removeAllViews();
michael@0: 
michael@0:         LayoutInflater.from(mContext).inflate(R.layout.tabs_panel, this);
michael@0:         initialize();
michael@0: 
michael@0:         if (mVisible)
michael@0:             show(mCurrentPanel);
michael@0:     }
michael@0: 
michael@0:     public void autoHidePanel() {
michael@0:         mActivity.autoHideTabs();
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public boolean isShown() {
michael@0:         return mVisible;
michael@0:     }
michael@0: 
michael@0:     public boolean isSideBar() {
michael@0:         return mIsSideBar;
michael@0:     }
michael@0: 
michael@0:     public void setIsSideBar(boolean isSideBar) {
michael@0:         mIsSideBar = isSideBar;
michael@0:     }
michael@0: 
michael@0:     public Panel getCurrentPanel() {
michael@0:         return mCurrentPanel;
michael@0:     }
michael@0: 
michael@0:     public void prepareTabsAnimation(PropertyAnimator animator) {
michael@0:         // Not worth doing this on pre-Honeycomb without proper
michael@0:         // hardware accelerated animations.
michael@0:         if (Build.VERSION.SDK_INT < 11) {
michael@0:             return;
michael@0:         }
michael@0: 
michael@0:         final Resources resources = getContext().getResources();
michael@0:         final int toolbarHeight = resources.getDimensionPixelSize(R.dimen.browser_toolbar_height);
michael@0:         final int tabsPanelWidth = getWidth();
michael@0: 
michael@0:         if (mVisible) {
michael@0:             if (mIsSideBar) {
michael@0:                 ViewHelper.setTranslationX(mHeader, -tabsPanelWidth);
michael@0:             } else {
michael@0:                 ViewHelper.setTranslationY(mHeader, -toolbarHeight);
michael@0:             }
michael@0: 
michael@0:             if (mIsSideBar) {
michael@0:                 ViewHelper.setTranslationX(mTabsContainer, -tabsPanelWidth);
michael@0:             } else {
michael@0:                 ViewHelper.setTranslationY(mTabsContainer, -toolbarHeight);
michael@0:                 ViewHelper.setAlpha(mTabsContainer, 0);
michael@0:             }
michael@0: 
michael@0:             // The footer view is only present on the sidebar
michael@0:             if (mIsSideBar) {
michael@0:                 ViewHelper.setTranslationX(mFooter, -tabsPanelWidth);
michael@0:             }
michael@0:         }
michael@0: 
michael@0:         if (mIsSideBar) {
michael@0:             final int translationX = (mVisible ? 0 : -tabsPanelWidth);
michael@0: 
michael@0:             animator.attach(mTabsContainer,
michael@0:                             PropertyAnimator.Property.TRANSLATION_X,
michael@0:                             translationX);
michael@0:             animator.attach(mHeader,
michael@0:                             PropertyAnimator.Property.TRANSLATION_X,
michael@0:                             translationX);
michael@0:             animator.attach(mFooter,
michael@0:                             PropertyAnimator.Property.TRANSLATION_X,
michael@0:                             translationX);
michael@0:         } else {
michael@0:             final int translationY = (mVisible ? 0 : -toolbarHeight);
michael@0: 
michael@0:             animator.attach(mTabsContainer,
michael@0:                             PropertyAnimator.Property.ALPHA,
michael@0:                             mVisible ? 1.0f : 0.0f);
michael@0:             animator.attach(mTabsContainer,
michael@0:                             PropertyAnimator.Property.TRANSLATION_Y,
michael@0:                             translationY);
michael@0:             animator.attach(mHeader,
michael@0:                             PropertyAnimator.Property.TRANSLATION_Y,
michael@0:                             translationY);
michael@0:         }
michael@0: 
michael@0:         mHeader.setLayerType(View.LAYER_TYPE_HARDWARE, null);
michael@0:         mTabsContainer.setLayerType(View.LAYER_TYPE_HARDWARE, null);
michael@0:     }
michael@0: 
michael@0:     public void finishTabsAnimation() {
michael@0:         if (Build.VERSION.SDK_INT < 11) {
michael@0:             return;
michael@0:         }
michael@0: 
michael@0:         mHeader.setLayerType(View.LAYER_TYPE_NONE, null);
michael@0:         mTabsContainer.setLayerType(View.LAYER_TYPE_NONE, null);
michael@0: 
michael@0:         // If the tray is now hidden, call hide() on current panel and unset it as the current panel
michael@0:         // to avoid hide() being called again when the tray is opened next.
michael@0:         if (!mVisible && mPanel != null) {
michael@0:             mPanel.hide();
michael@0:             mPanel = null;
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     public void setTabsLayoutChangeListener(TabsLayoutChangeListener listener) {
michael@0:         mLayoutChangeListener = listener;
michael@0:     }
michael@0: 
michael@0:     private void dispatchLayoutChange(int width, int height) {
michael@0:         if (mLayoutChangeListener != null)
michael@0:             mLayoutChangeListener.onTabsLayoutChange(width, height);
michael@0:     }
michael@0: }