/*
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.internal.policy.impl;

import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
import static android.view.WindowManager.LayoutParams.FLAG_FULLSCREEN;
import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR;
import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;

import com.android.internal.view.BaseSurfaceHolder;
import com.android.internal.view.RootViewSurfaceTaker;
import com.android.internal.view.menu.ContextMenuBuilder;
import com.android.internal.view.menu.MenuBuilder;
import com.android.internal.view.menu.MenuDialogHelper;
import com.android.internal.view.menu.MenuView;
import com.android.internal.view.menu.SubMenuBuilder;

import android.app.KeyguardManager;
import android.app.SearchManager;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.media.AudioManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Message;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.SystemClock;
import android.telephony.TelephonyManager;
import android.util.AndroidRuntimeException;
import android.util.Config;
import android.util.EventLog;
import android.util.Log;
import android.util.SparseArray;
import android.view.Gravity;
import android.view.HapticFeedbackConstants;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewManager;
import android.view.VolumePanel;
import android.view.Window;
import android.view.WindowManager;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.inputmethod.InputMethodManager;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;

/**
 * Android-specific Window.
 * <p>
 * todo: need to pull the generic functionality out into a base class
 * in android.widget.
 */
public class PhoneWindow extends Window implements MenuBuilder.Callback {

    private final static String TAG = "PhoneWindow";

    private final static boolean SWEEP_OPEN_MENU = false;

    /**
     * Simple callback used by the context menu and its submenus. The options
     * menu submenus do not use this (their behavior is more complex).
     */
    ContextMenuCallback mContextMenuCallback = new ContextMenuCallback(FEATURE_CONTEXT_MENU);

    // This is the top-level view of the window, containing the window decor.
    private DecorView mDecor;

    // This is the view in which the window contents are placed. It is either
    // mDecor itself, or a child of mDecor where the contents go.
    private ViewGroup mContentParent;

    SurfaceHolder.Callback mTakeSurfaceCallback;
    BaseSurfaceHolder mSurfaceHolder;
    
    private boolean mIsFloating;

    private LayoutInflater mLayoutInflater;

    private TextView mTitleView;

    private DrawableFeatureState[] mDrawables;

    private PanelFeatureState[] mPanels;

    /**
     * The panel that is prepared or opened (the most recent one if there are
     * multiple panels). Shortcuts will go to this panel. It gets set in
     * {@link #preparePanel} and cleared in {@link #closePanel}.
     */
    private PanelFeatureState mPreparedPanel;

    /**
     * The keycode that is currently held down (as a modifier) for chording. If
     * this is 0, there is no key held down.
     */
    private int mPanelChordingKey;
    private boolean mPanelMayLongPress;

    private ImageView mLeftIconView;

    private ImageView mRightIconView;

    private ProgressBar mCircularProgressBar;

    private ProgressBar mHorizontalProgressBar;

    private int mBackgroundResource = 0;

    private Drawable mBackgroundDrawable;

    private int mFrameResource = 0;

    private int mTextColor = 0;

    private CharSequence mTitle = null;

    private int mTitleColor = 0;

    private ContextMenuBuilder mContextMenu;
    private MenuDialogHelper mContextMenuHelper;

    private int mVolumeControlStreamType = AudioManager.USE_DEFAULT_STREAM_TYPE;
    private long mVolumeKeyUpTime;

    private KeyguardManager mKeyguardManager = null;
    
    private SearchManager mSearchManager = null;

    private TelephonyManager mTelephonyManager = null;
    
    public PhoneWindow(Context context) {
        super(context);
        mLayoutInflater = LayoutInflater.from(context);
    }

    @Override
    public final void setContainer(Window container) {
        super.setContainer(container);
    }

    @Override
    public boolean requestFeature(int featureId) {
        if (mContentParent != null) {
            throw new AndroidRuntimeException("requestFeature() must be called before adding content");
        }
        final int features = getFeatures();
        if ((features != DEFAULT_FEATURES) && (featureId == FEATURE_CUSTOM_TITLE)) {

            /* Another feature is enabled and the user is trying to enable the custom title feature */
            throw new AndroidRuntimeException("You cannot combine custom titles with other title features");
        }
        if (((features & (1 << FEATURE_CUSTOM_TITLE)) != 0) && (featureId != FEATURE_CUSTOM_TITLE)) {

            /* Custom title feature is enabled and the user is trying to enable another feature */
            throw new AndroidRuntimeException("You cannot combine custom titles with other title features");
        }
        if (featureId == FEATURE_OPENGL) {
            getAttributes().memoryType = WindowManager.LayoutParams.MEMORY_TYPE_GPU;
        }
        return super.requestFeature(featureId);
    }

    @Override
    public void setContentView(int layoutResID) {
        if (mContentParent == null) {
            installDecor();
        } else {
            mContentParent.removeAllViews();
        }
        mLayoutInflater.inflate(layoutResID, mContentParent);
        final Callback cb = getCallback();
        if (cb != null) {
            cb.onContentChanged();
        }
    }

    @Override
    public void setContentView(View view) {
        setContentView(view, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
    }

    @Override
    public void setContentView(View view, ViewGroup.LayoutParams params) {
        if (mContentParent == null) {
            installDecor();
        } else {
            mContentParent.removeAllViews();
        }
        mContentParent.addView(view, params);
        final Callback cb = getCallback();
        if (cb != null) {
            cb.onContentChanged();
        }
    }

    @Override
    public void addContentView(View view, ViewGroup.LayoutParams params) {
        if (mContentParent == null) {
            installDecor();
        }
        mContentParent.addView(view, params);
        final Callback cb = getCallback();
        if (cb != null) {
            cb.onContentChanged();
        }
    }

    @Override
    public View getCurrentFocus() {
        return mDecor != null ? mDecor.findFocus() : null;
    }

    @Override
    public void takeSurface(SurfaceHolder.Callback callback) {
        mTakeSurfaceCallback = callback;
    }
    
    @Override
    public boolean isFloating() {
        return mIsFloating;
    }

    /**
     * Return a LayoutInflater instance that can be used to inflate XML view layout
     * resources for use in this Window.
     *
     * @return LayoutInflater The shared LayoutInflater.
     */
    @Override
    public LayoutInflater getLayoutInflater() {
        return mLayoutInflater;
    }

    @Override
    public void setTitle(CharSequence title) {
        if (mTitleView != null) {
            mTitleView.setText(title);
        }
        mTitle = title;
    }

    @Override
    public void setTitleColor(int textColor) {
        if (mTitleView != null) {
            mTitleView.setTextColor(textColor);
        }
        mTitleColor = textColor;
    }

    /**
     * Prepares the panel to either be opened or chorded. This creates the Menu
     * instance for the panel and populates it via the Activity callbacks.
     *
     * @param st The panel state to prepare.
     * @param event The event that triggered the preparing of the panel.
     * @return Whether the panel was prepared. If the panel should not be shown,
     *         returns false.
     */
    public final boolean preparePanel(PanelFeatureState st, KeyEvent event) {
        // Already prepared (isPrepared will be reset to false later)
        if (st.isPrepared)
            return true;

        if ((mPreparedPanel != null) && (mPreparedPanel != st)) {
            // Another Panel is prepared and possibly open, so close it
            closePanel(mPreparedPanel, false);
        }

        final Callback cb = getCallback();

        if (cb != null) {
            st.createdPanelView = cb.onCreatePanelView(st.featureId);
        }

        if (st.createdPanelView == null) {
            // Init the panel state's menu--return false if init failed
            if (st.menu == null) {
                if (!initializePanelMenu(st) || (st.menu == null)) {
                    return false;
                }
                // Call callback, and return if it doesn't want to display menu
                if ((cb == null) || !cb.onCreatePanelMenu(st.featureId, st.menu)) {
                    // Ditch the menu created above
                    st.menu = null;

                    return false;
                }
            }

            // Callback and return if the callback does not want to show the menu
            if (!cb.onPreparePanel(st.featureId, st.createdPanelView, st.menu)) {
                return false;
            }

            // Set the proper keymap
            KeyCharacterMap kmap = KeyCharacterMap.load(event != null ? event.getDeviceId() : 0);
            st.qwertyMode = kmap.getKeyboardType() != KeyCharacterMap.NUMERIC;
            st.menu.setQwertyMode(st.qwertyMode);
        }

        // Set other state
        st.isPrepared = true;
        st.isHandled = false;
        mPreparedPanel = st;

        return true;
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
        if ((st != null) && (st.menu != null)) {
            final MenuBuilder menuBuilder = (MenuBuilder) st.menu;

            if (st.isOpen) {
                // Freeze state
                final Bundle state = new Bundle();
                menuBuilder.saveHierarchyState(state);

                // Remove the menu views since they need to be recreated
                // according to the new configuration
                clearMenuViews(st);

                // Re-open the same menu
                reopenMenu(false);

                // Restore state
                menuBuilder.restoreHierarchyState(state);

            } else {
                // Clear menu views so on next menu opening, it will use
                // the proper layout
                clearMenuViews(st);
            }
        }

    }

    private static void clearMenuViews(PanelFeatureState st) {

        // This can be called on config changes, so we should make sure
        // the views will be reconstructed based on the new orientation, etc.

        // Allow the callback to create a new panel view
        st.createdPanelView = null;

        // Causes the decor view to be recreated
        st.refreshDecorView = true;

        ((MenuBuilder) st.menu).clearMenuViews();
    }

    @Override
    public final void openPanel(int featureId, KeyEvent event) {
        openPanel(getPanelState(featureId, true), event);
    }

    private void openPanel(PanelFeatureState st, KeyEvent event) {
        // System.out.println("Open panel: isOpen=" + st.isOpen);

        // Already open, return
        if (st.isOpen) {
            return;
        }

        Callback cb = getCallback();
        if ((cb != null) && (!cb.onMenuOpened(st.featureId, st.menu))) {
            // Callback doesn't want the menu to open, reset any state
            closePanel(st, true);
            return;
        }

        final WindowManager wm = getWindowManager();
        if (wm == null) {
            return;
        }

        // Prepare panel (should have been done before, but just in case)
        if (!preparePanel(st, event)) {
            return;
        }

        if (st.decorView == null || st.refreshDecorView) {
            if (st.decorView == null) {
                // Initialize the panel decor, this will populate st.decorView
                if (!initializePanelDecor(st) || (st.decorView == null))
                    return;
            } else if (st.refreshDecorView && (st.decorView.getChildCount() > 0)) {
                // Decor needs refreshing, so remove its views
                st.decorView.removeAllViews();
            }

            // This will populate st.shownPanelView
            if (!initializePanelContent(st) || (st.shownPanelView == null)) {
                return;
            }

            ViewGroup.LayoutParams lp = st.shownPanelView.getLayoutParams();
            if (lp == null) {
                lp = new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
            }

            int backgroundResId;
            if (lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
                // If the contents is fill parent for the width, set the
                // corresponding background
                backgroundResId = st.fullBackground;
            } else {
                // Otherwise, set the normal panel background
                backgroundResId = st.background;
            }
            st.decorView.setWindowBackground(getContext().getResources().getDrawable(
                    backgroundResId));


            st.decorView.addView(st.shownPanelView, lp);

            /*
             * Give focus to the view, if it or one of its children does not
             * already have it.
             */
            if (!st.shownPanelView.hasFocus()) {
                st.shownPanelView.requestFocus();
            }
        }

        st.isOpen = true;
        st.isHandled = false;

        WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
                WRAP_CONTENT, WRAP_CONTENT,
                st.x, st.y, WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG,
                WindowManager.LayoutParams.FLAG_DITHER
                | WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM,
                st.decorView.mDefaultOpacity);

        lp.gravity = st.gravity;
        lp.windowAnimations = st.windowAnimations;
        
        wm.addView(st.decorView, lp);
        // Log.v(TAG, "Adding main menu to window manager.");
    }

    @Override
    public final void closePanel(int featureId) {
        if (featureId == FEATURE_CONTEXT_MENU) {
            closeContextMenu();
        } else {
            closePanel(getPanelState(featureId, true), true);
        }
    }

    /**
     * Closes the given panel.
     *
     * @param st The panel to be closed.
     * @param doCallback Whether to notify the callback that the panel was
     *            closed. If the panel is in the process of re-opening or
     *            opening another panel (e.g., menu opening a sub menu), the
     *            callback should not happen and this variable should be false.
     *            In addition, this method internally will only perform the
     *            callback if the panel is open.
     */
    public final void closePanel(PanelFeatureState st, boolean doCallback) {
        // System.out.println("Close panel: isOpen=" + st.isOpen);
        final ViewManager wm = getWindowManager();
        if ((wm != null) && st.isOpen) {
            if (st.decorView != null) {
                wm.removeView(st.decorView);
                // Log.v(TAG, "Removing main menu from window manager.");
            }

            if (doCallback) {
                callOnPanelClosed(st.featureId, st, null);
            }
        }
        st.isPrepared = false;
        st.isHandled = false;
        st.isOpen = false;

        // This view is no longer shown, so null it out
        st.shownPanelView = null;

        if (st.isInExpandedMode) {
            // Next time the menu opens, it should not be in expanded mode, so
            // force a refresh of the decor
            st.refreshDecorView = true;
            st.isInExpandedMode = false;
        }

        if (mPreparedPanel == st) {
            mPreparedPanel = null;
            mPanelChordingKey = 0;
        }
    }

    @Override
    public final void togglePanel(int featureId, KeyEvent event) {
        PanelFeatureState st = getPanelState(featureId, true);
        if (st.isOpen) {
            closePanel(st, true);
        } else {
            openPanel(st, event);
        }
    }

    /**
     * Called when the panel key is pushed down.
     * @param featureId The feature ID of the relevant panel (defaults to FEATURE_OPTIONS_PANEL}.
     * @param event The key event.
     * @return Whether the key was handled.
     */
    public final boolean onKeyDownPanel(int featureId, KeyEvent event) {
        final int keyCode = event.getKeyCode();
        
        if (event.getRepeatCount() == 0) {
            // The panel key was pushed, so set the chording key
            mPanelChordingKey = keyCode;
            mPanelMayLongPress = false;
            
            PanelFeatureState st = getPanelState(featureId, true);
            if (!st.isOpen) {
                if (getContext().getResources().getConfiguration().keyboard
                        == Configuration.KEYBOARD_NOKEYS) {
                    mPanelMayLongPress = true;
                }
                return preparePanel(st, event);
            }
            
        } else if (mPanelMayLongPress && mPanelChordingKey == keyCode
                && (event.getFlags()&KeyEvent.FLAG_LONG_PRESS) != 0) {
            // We have had a long press while in a state where this
            // should be executed...  do it!
            mPanelChordingKey = 0;
            mPanelMayLongPress = false;
            InputMethodManager imm = (InputMethodManager)
                    getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
            if (imm != null) {
                mDecor.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
                imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
            }
            
        }

        return false;
    }

    /**
     * Called when the panel key is released.
     * @param featureId The feature ID of the relevant panel (defaults to FEATURE_OPTIONS_PANEL}.
     * @param event The key event.
     */
    public final void onKeyUpPanel(int featureId, KeyEvent event) {
        // The panel key was released, so clear the chording key
        if (mPanelChordingKey != 0) {
            mPanelChordingKey = 0;
            mPanelMayLongPress = false;

            if (event.isCanceled()) {
                return;
            }
            
            boolean playSoundEffect = false;
            PanelFeatureState st = getPanelState(featureId, true);
            if (st.isOpen || st.isHandled) {

                // Play the sound effect if the user closed an open menu (and not if
                // they just released a menu shortcut)
                playSoundEffect = st.isOpen;

                // Close menu
                closePanel(st, true);

            } else if (st.isPrepared) {

                // Write 'menu opened' to event log
                EventLog.writeEvent(50001, 0);

                // Show menu
                openPanel(st, event);

                playSoundEffect = true;
            }

            if (playSoundEffect) {
                AudioManager audioManager = (AudioManager) getContext().getSystemService(
                        Context.AUDIO_SERVICE);
                if (audioManager != null) {
                    audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK);
                } else {
                    Log.w(TAG, "Couldn't get audio manager");
                }
            }
        }
    }

    @Override
    public final void closeAllPanels() {
        final ViewManager wm = getWindowManager();
        if (wm == null) {
            return;
        }

        final PanelFeatureState[] panels = mPanels;
        final int N = panels != null ? panels.length : 0;
        for (int i = 0; i < N; i++) {
            final PanelFeatureState panel = panels[i];
            if (panel != null) {
                closePanel(panel, true);
            }
        }

        closeContextMenu();
    }

    /**
     * Closes the context menu. This notifies the menu logic of the close, along
     * with dismissing it from the UI.
     */
    private synchronized void closeContextMenu() {
        if (mContextMenu != null) {
            mContextMenu.close();
            dismissContextMenu();
        }
    }

    /**
     * Dismisses just the context menu UI. To close the context menu, use
     * {@link #closeContextMenu()}.
     */
    private synchronized void dismissContextMenu() {
        mContextMenu = null;

        if (mContextMenuHelper != null) {
            mContextMenuHelper.dismiss();
            mContextMenuHelper = null;
        }
    }

    @Override
    public boolean performPanelShortcut(int featureId, int keyCode, KeyEvent event, int flags) {
        return performPanelShortcut(getPanelState(featureId, true), keyCode, event, flags);
    }

    private boolean performPanelShortcut(PanelFeatureState st, int keyCode, KeyEvent event,
            int flags) {
        if (event.isSystem() || (st == null)) {
            return false;
        }

        boolean handled = false;

        // Only try to perform menu shortcuts if preparePanel returned true (possible false
        // return value from application not wanting to show the menu).
        if ((st.isPrepared || preparePanel(st, event)) && st.menu != null) {
            // The menu is prepared now, perform the shortcut on it
            handled = st.menu.performShortcut(keyCode, event, flags);
        }

        if (handled) {
            // Mark as handled
            st.isHandled = true;

            if ((flags & Menu.FLAG_PERFORM_NO_CLOSE) == 0) {
                closePanel(st, true);
            }
        }

        return handled;
    }

    @Override
    public boolean performPanelIdentifierAction(int featureId, int id, int flags) {

        PanelFeatureState st = getPanelState(featureId, true);
        if (!preparePanel(st, new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU))) {
            return false;
        }
        if (st.menu == null) {
            return false;
        }

        boolean res = st.menu.performIdentifierAction(id, flags);

        closePanel(st, true);

        return res;
    }

    public PanelFeatureState findMenuPanel(Menu menu) {
        final PanelFeatureState[] panels = mPanels;
        final int N = panels != null ? panels.length : 0;
        for (int i = 0; i < N; i++) {
            final PanelFeatureState panel = panels[i];
            if (panel != null && panel.menu == menu) {
                return panel;
            }
        }
        return null;
    }

    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
        final Callback cb = getCallback();
        if (cb != null) {
            final PanelFeatureState panel = findMenuPanel(menu.getRootMenu());
            if (panel != null) {
                return cb.onMenuItemSelected(panel.featureId, item);
            }
        }
        return false;
    }

    public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
        final PanelFeatureState panel = findMenuPanel(menu);
        if (panel != null) {
            // Close the panel and only do the callback if the menu is being
            // closed
            // completely, not if opening a sub menu
            closePanel(panel, allMenusAreClosing);
        }
    }

    public void onCloseSubMenu(SubMenuBuilder subMenu) {
        final Menu parentMenu = subMenu.getRootMenu();
        final PanelFeatureState panel = findMenuPanel(parentMenu);

        // Callback
        if (panel != null) {
            callOnPanelClosed(panel.featureId, panel, parentMenu);
            closePanel(panel, true);
        }
    }

    public boolean onSubMenuSelected(final SubMenuBuilder subMenu) {
        if (!subMenu.hasVisibleItems()) {
            return true;
        }

        // The window manager will give us a valid window token
        new MenuDialogHelper(subMenu).show(null);

        return true;
    }

    public void onMenuModeChange(MenuBuilder menu) {
        reopenMenu(true);
    }

    private void reopenMenu(boolean toggleMenuMode) {
        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);

        // Save the future expanded mode state since closePanel will reset it
        boolean newExpandedMode = toggleMenuMode ? !st.isInExpandedMode : st.isInExpandedMode;

        st.refreshDecorView = true;
        closePanel(st, false);

        // Set the expanded mode state
        st.isInExpandedMode = newExpandedMode;

        openPanel(st, null);
    }

    /**
     * Initializes the menu associated with the given panel feature state. You
     * must at the very least set PanelFeatureState.menu to the Menu to be
     * associated with the given panel state. The default implementation creates
     * a new menu for the panel state.
     *
     * @param st The panel whose menu is being initialized.
     * @return Whether the initialization was successful.
     */
    protected boolean initializePanelMenu(final PanelFeatureState st) {
        final MenuBuilder menu = new MenuBuilder(getContext());

        menu.setCallback(this);
        st.setMenu(menu);

        return true;
    }

    /**
     * Perform initial setup of a panel. This should at the very least set the
     * style information in the PanelFeatureState and must set
     * PanelFeatureState.decor to the panel's window decor view.
     *
     * @param st The panel being initialized.
     */
    protected boolean initializePanelDecor(PanelFeatureState st) {
        st.decorView = new DecorView(getContext(), st.featureId);
        st.gravity = Gravity.CENTER | Gravity.BOTTOM;
        st.setStyle(getContext());

        return true;
    }

    /**
     * Initializes the panel associated with the panel feature state. You must
     * at the very least set PanelFeatureState.panel to the View implementing
     * its contents. The default implementation gets the panel from the menu.
     *
     * @param st The panel state being initialized.
     * @return Whether the initialization was successful.
     */
    protected boolean initializePanelContent(PanelFeatureState st) {

        if (st.createdPanelView != null) {
            st.shownPanelView = st.createdPanelView;
            return true;
        }

        final MenuBuilder menu = (MenuBuilder)st.menu;
        if (menu == null) {
            return false;
        }

        st.shownPanelView = menu.getMenuView((st.isInExpandedMode) ? MenuBuilder.TYPE_EXPANDED
                : MenuBuilder.TYPE_ICON, st.decorView);

        if (st.shownPanelView != null) {
            // Use the menu View's default animations if it has any
            final int defaultAnimations = ((MenuView) st.shownPanelView).getWindowAnimations();
            if (defaultAnimations != 0) {
                st.windowAnimations = defaultAnimations;
            }
            return true;
        } else {
            return false;
        }
    }

    @Override
    public boolean performContextMenuIdentifierAction(int id, int flags) {
        return (mContextMenu != null) ? mContextMenu.performIdentifierAction(id, flags) : false;
    }

    @Override
    public final void setBackgroundDrawable(Drawable drawable) {
        if (drawable != mBackgroundDrawable || mBackgroundResource != 0) {
            mBackgroundResource = 0;
            mBackgroundDrawable = drawable;
            if (mDecor != null) {
                mDecor.setWindowBackground(drawable);
            }
        }
    }

    @Override
    public final void setFeatureDrawableResource(int featureId, int resId) {
        if (resId != 0) {
            DrawableFeatureState st = getDrawableState(featureId, true);
            if (st.resid != resId) {
                st.resid = resId;
                st.uri = null;
                st.local = getContext().getResources().getDrawable(resId);
                updateDrawable(featureId, st, false);
            }
        } else {
            setFeatureDrawable(featureId, null);
        }
    }

    @Override
    public final void setFeatureDrawableUri(int featureId, Uri uri) {
        if (uri != null) {
            DrawableFeatureState st = getDrawableState(featureId, true);
            if (st.uri == null || !st.uri.equals(uri)) {
                st.resid = 0;
                st.uri = uri;
                st.local = loadImageURI(uri);
                updateDrawable(featureId, st, false);
            }
        } else {
            setFeatureDrawable(featureId, null);
        }
    }

    @Override
    public final void setFeatureDrawable(int featureId, Drawable drawable) {
        DrawableFeatureState st = getDrawableState(featureId, true);
        st.resid = 0;
        st.uri = null;
        if (st.local != drawable) {
            st.local = drawable;
            updateDrawable(featureId, st, false);
        }
    }

    @Override
    public void setFeatureDrawableAlpha(int featureId, int alpha) {
        DrawableFeatureState st = getDrawableState(featureId, true);
        if (st.alpha != alpha) {
            st.alpha = alpha;
            updateDrawable(featureId, st, false);
        }
    }

    protected final void setFeatureDefaultDrawable(int featureId, Drawable drawable) {
        DrawableFeatureState st = getDrawableState(featureId, true);
        if (st.def != drawable) {
            st.def = drawable;
            updateDrawable(featureId, st, false);
        }
    }

    @Override
    public final void setFeatureInt(int featureId, int value) {
        // XXX Should do more management (as with drawable features) to
        // deal with interactions between multiple window policies.
        updateInt(featureId, value, false);
    }

    /**
     * Update the state of a drawable feature. This should be called, for every
     * drawable feature supported, as part of onActive(), to make sure that the
     * contents of a containing window is properly updated.
     *
     * @see #onActive
     * @param featureId The desired drawable feature to change.
     * @param fromActive Always true when called from onActive().
     */
    protected final void updateDrawable(int featureId, boolean fromActive) {
        final DrawableFeatureState st = getDrawableState(featureId, false);
        if (st != null) {
            updateDrawable(featureId, st, fromActive);
        }
    }

    /**
     * Called when a Drawable feature changes, for the window to update its
     * graphics.
     *
     * @param featureId The feature being changed.
     * @param drawable The new Drawable to show, or null if none.
     * @param alpha The new alpha blending of the Drawable.
     */
    protected void onDrawableChanged(int featureId, Drawable drawable, int alpha) {
        ImageView view;
        if (featureId == FEATURE_LEFT_ICON) {
            view = getLeftIconView();
        } else if (featureId == FEATURE_RIGHT_ICON) {
            view = getRightIconView();
        } else {
            return;
        }

        if (drawable != null) {
            drawable.setAlpha(alpha);
            view.setImageDrawable(drawable);
            view.setVisibility(View.VISIBLE);
        } else {
            view.setVisibility(View.GONE);
        }
    }

    /**
     * Called when an int feature changes, for the window to update its
     * graphics.
     *
     * @param featureId The feature being changed.
     * @param value The new integer value.
     */
    protected void onIntChanged(int featureId, int value) {
        if (featureId == FEATURE_PROGRESS || featureId == FEATURE_INDETERMINATE_PROGRESS) {
            updateProgressBars(value);
        } else if (featureId == FEATURE_CUSTOM_TITLE) {
            FrameLayout titleContainer = (FrameLayout) findViewById(com.android.internal.R.id.title_container);
            if (titleContainer != null) {
                mLayoutInflater.inflate(value, titleContainer);
            }
        }
    }

    /**
     * Updates the progress bars that are shown in the title bar.
     *
     * @param value Can be one of {@link Window#PROGRESS_VISIBILITY_ON},
     *            {@link Window#PROGRESS_VISIBILITY_OFF},
     *            {@link Window#PROGRESS_INDETERMINATE_ON},
     *            {@link Window#PROGRESS_INDETERMINATE_OFF}, or a value
     *            starting at {@link Window#PROGRESS_START} through
     *            {@link Window#PROGRESS_END} for setting the default
     *            progress (if {@link Window#PROGRESS_END} is given,
     *            the progress bar widgets in the title will be hidden after an
     *            animation), a value between
     *            {@link Window#PROGRESS_SECONDARY_START} -
     *            {@link Window#PROGRESS_SECONDARY_END} for the
     *            secondary progress (if
     *            {@link Window#PROGRESS_SECONDARY_END} is given, the
     *            progress bar widgets will still be shown with the secondary
     *            progress bar will be completely filled in.)
     */
    private void updateProgressBars(int value) {
        ProgressBar circularProgressBar = getCircularProgressBar(true);
        ProgressBar horizontalProgressBar = getHorizontalProgressBar(true);

        final int features = getLocalFeatures();
        if (value == PROGRESS_VISIBILITY_ON) {
            if ((features & (1 << FEATURE_PROGRESS)) != 0) {
                int level = horizontalProgressBar.getProgress();
                int visibility = (horizontalProgressBar.isIndeterminate() || level < 10000) ?
                        View.VISIBLE : View.INVISIBLE;
                horizontalProgressBar.setVisibility(visibility);
            }
            if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
                circularProgressBar.setVisibility(View.VISIBLE);
            }
        } else if (value == PROGRESS_VISIBILITY_OFF) {
            if ((features & (1 << FEATURE_PROGRESS)) != 0) {
                horizontalProgressBar.setVisibility(View.GONE);
            }
            if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
                circularProgressBar.setVisibility(View.GONE);
            }
        } else if (value == PROGRESS_INDETERMINATE_ON) {
            horizontalProgressBar.setIndeterminate(true);
        } else if (value == PROGRESS_INDETERMINATE_OFF) {
            horizontalProgressBar.setIndeterminate(false);
        } else if (PROGRESS_START <= value && value <= PROGRESS_END) {
            // We want to set the progress value before testing for visibility
            // so that when the progress bar becomes visible again, it has the
            // correct level.
            horizontalProgressBar.setProgress(value - PROGRESS_START);

            if (value < PROGRESS_END) {
                showProgressBars(horizontalProgressBar, circularProgressBar);
            } else {
                hideProgressBars(horizontalProgressBar, circularProgressBar);
            }
        } else if (PROGRESS_SECONDARY_START <= value && value <= PROGRESS_SECONDARY_END) {
            horizontalProgressBar.setSecondaryProgress(value - PROGRESS_SECONDARY_START);

            showProgressBars(horizontalProgressBar, circularProgressBar);
        }

    }

    private void showProgressBars(ProgressBar horizontalProgressBar, ProgressBar spinnyProgressBar) {
        final int features = getLocalFeatures();
        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0 &&
                spinnyProgressBar.getVisibility() == View.INVISIBLE) {
            spinnyProgressBar.setVisibility(View.VISIBLE);
        }
        // Only show the progress bars if the primary progress is not complete
        if ((features & (1 << FEATURE_PROGRESS)) != 0 &&
                horizontalProgressBar.getProgress() < 10000) {
            horizontalProgressBar.setVisibility(View.VISIBLE);
        }
    }

    private void hideProgressBars(ProgressBar horizontalProgressBar, ProgressBar spinnyProgressBar) {
        final int features = getLocalFeatures();
        Animation anim = AnimationUtils.loadAnimation(getContext(), com.android.internal.R.anim.fade_out);
        anim.setDuration(1000);
        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0 &&
                spinnyProgressBar.getVisibility() == View.VISIBLE) {
            spinnyProgressBar.startAnimation(anim);
            spinnyProgressBar.setVisibility(View.INVISIBLE);
        }
        if ((features & (1 << FEATURE_PROGRESS)) != 0 &&
                horizontalProgressBar.getVisibility() == View.VISIBLE) {
            horizontalProgressBar.startAnimation(anim);
            horizontalProgressBar.setVisibility(View.INVISIBLE);
        }
    }

    /**
     * Request that key events come to this activity. Use this if your activity
     * has no views with focus, but the activity still wants a chance to process
     * key events.
     */
    @Override
    public void takeKeyEvents(boolean get) {
        mDecor.setFocusable(get);
    }

    @Override
    public boolean superDispatchKeyEvent(KeyEvent event) {
        return mDecor.superDispatchKeyEvent(event);
    }

    @Override
    public boolean superDispatchTouchEvent(MotionEvent event) {
        return mDecor.superDispatchTouchEvent(event);
    }

    @Override
    public boolean superDispatchTrackballEvent(MotionEvent event) {
        return mDecor.superDispatchTrackballEvent(event);
    }

    /**
     * A key was pressed down and not handled by anything else in the window.
     *
     * @see #onKeyUp
     * @see android.view.KeyEvent
     */
    protected boolean onKeyDown(int featureId, int keyCode, KeyEvent event) {
        final KeyEvent.DispatcherState dispatcher =
                mDecor != null ? mDecor.getKeyDispatcherState() : null;
        //Log.i(TAG, "Key down: repeat=" + event.getRepeatCount()
        //        + " flags=0x" + Integer.toHexString(event.getFlags()));
        
        switch (keyCode) {
            case KeyEvent.KEYCODE_VOLUME_UP:
            case KeyEvent.KEYCODE_VOLUME_DOWN: {
                AudioManager audioManager = (AudioManager) getContext().getSystemService(
                        Context.AUDIO_SERVICE);
                if (audioManager != null) {
                    /*
                     * Adjust the volume in on key down since it is more
                     * responsive to the user.
                     */
                    audioManager.adjustSuggestedStreamVolume(
                            keyCode == KeyEvent.KEYCODE_VOLUME_UP
                                    ? AudioManager.ADJUST_RAISE
                                    : AudioManager.ADJUST_LOWER,
                            mVolumeControlStreamType,
                            AudioManager.FLAG_SHOW_UI | AudioManager.FLAG_VIBRATE);
                }
                return true;
            }


            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
                /* Suppress PLAYPAUSE toggle when phone is ringing or in-call
                 * to avoid music playback */
                if (mTelephonyManager == null) {
                    mTelephonyManager = (TelephonyManager) getContext().getSystemService(
                            Context.TELEPHONY_SERVICE);
                }
                if (mTelephonyManager != null &&
                        mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) {
                    return true;  // suppress key event
                }
            case KeyEvent.KEYCODE_MUTE:
            case KeyEvent.KEYCODE_HEADSETHOOK:
            case KeyEvent.KEYCODE_MEDIA_STOP:
            case KeyEvent.KEYCODE_MEDIA_NEXT:
            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
            case KeyEvent.KEYCODE_MEDIA_REWIND:
            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
                Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
                intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
                getContext().sendOrderedBroadcast(intent, null);
                return true;
            }

            case KeyEvent.KEYCODE_CAMERA: {
                if (getKeyguardManager().inKeyguardRestrictedInputMode()
                        || dispatcher == null) {
                    break;
                }
                if (event.getRepeatCount() == 0) {
                    dispatcher.startTracking(event, this);
                } else if (event.isLongPress() && dispatcher.isTracking(event)) {
                    dispatcher.performedLongPress(event);
                    mDecor.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
                    sendCloseSystemWindows();
                    // Broadcast an intent that the Camera button was longpressed
                    Intent intent = new Intent(Intent.ACTION_CAMERA_BUTTON, null);
                    intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
                    getContext().sendOrderedBroadcast(intent, null);
                }
                return true;
            }

            case KeyEvent.KEYCODE_MENU: {
                onKeyDownPanel((featureId < 0) ? FEATURE_OPTIONS_PANEL : featureId, event);
                return true;
            }

            case KeyEvent.KEYCODE_BACK: {
                if (event.getRepeatCount() > 0) break;
                if (featureId < 0) break;
                // Currently don't do anything with long press.
                dispatcher.startTracking(event, this);
                return true;
            }

            case KeyEvent.KEYCODE_CALL: {
                if (getKeyguardManager().inKeyguardRestrictedInputMode()
                        || dispatcher == null) {
                    break;
                }
                if (event.getRepeatCount() == 0) {
                    dispatcher.startTracking(event, this);
                } else if (event.isLongPress() && dispatcher.isTracking(event)) {
                    dispatcher.performedLongPress(event);
                    mDecor.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
                    // launch the VoiceDialer
                    Intent intent = new Intent(Intent.ACTION_VOICE_COMMAND);
                    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    try {
                        sendCloseSystemWindows();
                        getContext().startActivity(intent);
                    } catch (ActivityNotFoundException e) {
                        startCallActivity();
                    }
                }
                return true;
            }

            case KeyEvent.KEYCODE_SEARCH: {
                if (getKeyguardManager().inKeyguardRestrictedInputMode()
                        || dispatcher == null) {
                    break;
                }
                if (event.getRepeatCount() == 0) {
                    dispatcher.startTracking(event, this);
                } else if (event.isLongPress() && dispatcher.isTracking(event)) {
                    Configuration config = getContext().getResources().getConfiguration(); 
                    if (config.keyboard == Configuration.KEYBOARD_NOKEYS
                            || config.hardKeyboardHidden
                                    == Configuration.HARDKEYBOARDHIDDEN_YES) {
                        // launch the search activity
                        Intent intent = new Intent(Intent.ACTION_SEARCH_LONG_PRESS);
                        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        try {
                            mDecor.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
                            sendCloseSystemWindows();
                            getSearchManager().stopSearch();
                            getContext().startActivity(intent);
                            // Only clear this if we successfully start the
                            // activity; otherwise we will allow the normal short
                            // press action to be performed.
                            dispatcher.performedLongPress(event);
                            return true;
                        } catch (ActivityNotFoundException e) {
                            // Ignore
                        }
                    }
                }
                break;
            }
        }

        return false;
    }

    /**
     * @return A handle to the keyguard manager.
     */
    private KeyguardManager getKeyguardManager() {
        if (mKeyguardManager == null) {
            mKeyguardManager = (KeyguardManager) getContext().getSystemService(Context.KEYGUARD_SERVICE);
        }
        return mKeyguardManager;
    }
    
    /**
     * @return A handle to the search manager.
     */
    private SearchManager getSearchManager() {
        if (mSearchManager == null) {
            mSearchManager = (SearchManager) getContext().getSystemService(Context.SEARCH_SERVICE);
        }
        return mSearchManager;
    }

    /**
     * A key was released and not handled by anything else in the window.
     *
     * @see #onKeyDown
     * @see android.view.KeyEvent
     */
    protected boolean onKeyUp(int featureId, int keyCode, KeyEvent event) {
        final KeyEvent.DispatcherState dispatcher =
                mDecor != null ? mDecor.getKeyDispatcherState() : null;
        if (dispatcher != null) {
            dispatcher.handleUpEvent(event);
        }
        //Log.i(TAG, "Key up: repeat=" + event.getRepeatCount()
        //        + " flags=0x" + Integer.toHexString(event.getFlags()));
        
        switch (keyCode) {
            case KeyEvent.KEYCODE_VOLUME_UP:
            case KeyEvent.KEYCODE_VOLUME_DOWN: {
                AudioManager audioManager = (AudioManager) getContext().getSystemService(
                        Context.AUDIO_SERVICE);
                if (audioManager != null) {
                    /*
                     * Play a sound. This is done on key up since we don't want the
                     * sound to play when a user holds down volume down to mute.
                     */
                    audioManager.adjustSuggestedStreamVolume(
                            AudioManager.ADJUST_SAME,
                            mVolumeControlStreamType,
                            AudioManager.FLAG_PLAY_SOUND);
                    mVolumeKeyUpTime = SystemClock.uptimeMillis();
                }
                return true;
            }

            case KeyEvent.KEYCODE_MENU: {
                onKeyUpPanel(featureId < 0 ? FEATURE_OPTIONS_PANEL : featureId,
                        event);
                return true;
            }

            case KeyEvent.KEYCODE_BACK: {
                if (featureId < 0) break;
                if (event.isTracking() && !event.isCanceled()) {
                    if (featureId == FEATURE_OPTIONS_PANEL) {
                        PanelFeatureState st = getPanelState(featureId, false);
                        if (st != null && st.isInExpandedMode) {
                            // If the user is in an expanded menu and hits back, it
                            // should go back to the icon menu
                            reopenMenu(true);
                            return true;
                        }
                    }
                    closePanel(featureId);
                    return true;
                }
                break;
            }

            case KeyEvent.KEYCODE_HEADSETHOOK:
            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
            case KeyEvent.KEYCODE_MEDIA_STOP:
            case KeyEvent.KEYCODE_MEDIA_NEXT:
            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
            case KeyEvent.KEYCODE_MEDIA_REWIND:
            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
                Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
                intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
                getContext().sendOrderedBroadcast(intent, null);
                return true;
            }

            case KeyEvent.KEYCODE_CAMERA: {
                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
                    break;
                }
                if (event.isTracking() && !event.isCanceled()) {
                    // Add short press behavior here if desired
                }
                return true;
            }

            case KeyEvent.KEYCODE_CALL: {
                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
                    break;
                }
                if (event.isTracking() && !event.isCanceled()) {
                    startCallActivity();
                }
                return true;
            }

            case KeyEvent.KEYCODE_SEARCH: {
                /*
                 * Do this in onKeyUp since the Search key is also used for
                 * chording quick launch shortcuts.
                 */
                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
                    break;
                }
                if (event.isTracking() && !event.isCanceled()) {
                    launchDefaultSearch();
                }
                return true;
            }
        }

        return false;
    }

    private void startCallActivity() {
        sendCloseSystemWindows();
        Intent intent = new Intent(Intent.ACTION_CALL_BUTTON);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        getContext().startActivity(intent);
    }

    @Override
    protected void onActive() {
    }

    @Override
    public final View getDecorView() {
        if (mDecor == null) {
            installDecor();
        }
        return mDecor;
    }

    @Override
    public final View peekDecorView() {
        return mDecor;
    }

    static private final String FOCUSED_ID_TAG = "android:focusedViewId";
    static private final String VIEWS_TAG = "android:views";
    static private final String PANELS_TAG = "android:Panels";

    /** {@inheritDoc} */
    @Override
    public Bundle saveHierarchyState() {
        Bundle outState = new Bundle();
        if (mContentParent == null) {
            return outState;
        }

        SparseArray<Parcelable> states = new SparseArray<Parcelable>();
        mContentParent.saveHierarchyState(states);
        outState.putSparseParcelableArray(VIEWS_TAG, states);

        // save the focused view id
        View focusedView = mContentParent.findFocus();
        if (focusedView != null) {
            if (focusedView.getId() != View.NO_ID) {
                outState.putInt(FOCUSED_ID_TAG, focusedView.getId());
            } else {
                if (Config.LOGD) {
                    Log.d(TAG, "couldn't save which view has focus because the focused view "
                            + focusedView + " has no id.");
                }
            }
        }

        // save the panels
        SparseArray<Parcelable> panelStates = new SparseArray<Parcelable>();
        savePanelState(panelStates);
        if (panelStates.size() > 0) {
            outState.putSparseParcelableArray(PANELS_TAG, panelStates);
        }

        return outState;
    }

    /** {@inheritDoc} */
    @Override
    public void restoreHierarchyState(Bundle savedInstanceState) {
        if (mContentParent == null) {
            return;
        }

        SparseArray<Parcelable> savedStates
                = savedInstanceState.getSparseParcelableArray(VIEWS_TAG);
        if (savedStates != null) {
            mContentParent.restoreHierarchyState(savedStates);
        }

        // restore the focused view
        int focusedViewId = savedInstanceState.getInt(FOCUSED_ID_TAG, View.NO_ID);
        if (focusedViewId != View.NO_ID) {
            View needsFocus = mContentParent.findViewById(focusedViewId);
            if (needsFocus != null) {
                needsFocus.requestFocus();
            } else {
                Log.w(TAG,
                        "Previously focused view reported id " + focusedViewId
                                + " during save, but can't be found during restore.");
            }
        }

        // restore the panels
        SparseArray<Parcelable> panelStates = savedInstanceState.getSparseParcelableArray(PANELS_TAG);
        if (panelStates != null) {
            restorePanelState(panelStates);
        }
    }

    /**
     * Invoked when the panels should freeze their state.
     *
     * @param icicles Save state into this. This is usually indexed by the
     *            featureId. This will be given to {@link #restorePanelState} in the
     *            future.
     */
    private void savePanelState(SparseArray<Parcelable> icicles) {
        PanelFeatureState[] panels = mPanels;
        if (panels == null) {
            return;
        }

        for (int curFeatureId = panels.length - 1; curFeatureId >= 0; curFeatureId--) {
            if (panels[curFeatureId] != null) {
                icicles.put(curFeatureId, panels[curFeatureId].onSaveInstanceState());
            }
        }
    }

    /**
     * Invoked when the panels should thaw their state from a previously frozen state.
     *
     * @param icicles The state saved by {@link #savePanelState} that needs to be thawed.
     */
    private void restorePanelState(SparseArray<Parcelable> icicles) {
        PanelFeatureState st;
        for (int curFeatureId = icicles.size() - 1; curFeatureId >= 0; curFeatureId--) {
            st = getPanelState(curFeatureId, false /* required */);
            if (st == null) {
                // The panel must not have been required, and is currently not around, skip it
                continue;
            }

            st.onRestoreInstanceState(icicles.get(curFeatureId));
        }

        /*
         * Implementation note: call openPanelsAfterRestore later to actually open the
         * restored panels.
         */
    }

    /**
     * Opens the panels that have had their state restored. This should be
     * called sometime after {@link #restorePanelState} when it is safe to add
     * to the window manager.
     */
    private void openPanelsAfterRestore() {
        PanelFeatureState[] panels = mPanels;

        if (panels == null) {
            return;
        }

        PanelFeatureState st;
        for (int i = panels.length - 1; i >= 0; i--) {
            st = panels[i];
            // We restore the panel if it was last open; we skip it if it
            // now is open, to avoid a race condition if the user immediately
            // opens it when we are resuming.
            if ((st != null) && !st.isOpen && st.wasLastOpen) {
                st.isInExpandedMode = st.wasLastExpanded;
                openPanel(st, null);
            }
        }
    }

    private final class DecorView extends FrameLayout implements RootViewSurfaceTaker {
        /* package */int mDefaultOpacity = PixelFormat.OPAQUE;

        /** The feature ID of the panel, or -1 if this is the application's DecorView */
        private final int mFeatureId;

        private final Rect mDrawingBounds = new Rect();

        private final Rect mBackgroundPadding = new Rect();

        private final Rect mFramePadding = new Rect();

        private final Rect mFrameOffsets = new Rect();

        private boolean mChanging;

        private Drawable mMenuBackground;
        private boolean mWatchingForMenu;
        private int mDownY;

        public DecorView(Context context, int featureId) {
            super(context);
            mFeatureId = featureId;
        }

        @Override
        public boolean dispatchKeyEvent(KeyEvent event) {
            final int keyCode = event.getKeyCode();
            final boolean isDown = event.getAction() == KeyEvent.ACTION_DOWN;

            /*
             * If the user hits another key within the play sound delay, then
             * cancel the sound
             */
            if (keyCode != KeyEvent.KEYCODE_VOLUME_DOWN && keyCode != KeyEvent.KEYCODE_VOLUME_UP
                    && mVolumeKeyUpTime + VolumePanel.PLAY_SOUND_DELAY
                            > SystemClock.uptimeMillis()) {
                /*
                 * The user has hit another key during the delay (e.g., 300ms)
                 * since the last volume key up, so cancel any sounds.
                 */
                AudioManager audioManager = (AudioManager) getContext().getSystemService(
                        Context.AUDIO_SERVICE);
                if (audioManager != null) {
                    audioManager.adjustSuggestedStreamVolume(AudioManager.ADJUST_SAME,
                            mVolumeControlStreamType, AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE);
                }
            }

            if (isDown && (event.getRepeatCount() == 0)) {
                // First handle chording of panel key: if a panel key is held
                // but not released, try to execute a shortcut in it.
                if ((mPanelChordingKey > 0) && (mPanelChordingKey != keyCode)) {
                    // Perform the shortcut (mPreparedPanel can be null since
                    // global shortcuts (such as search) don't rely on a
                    // prepared panel or menu).
                    boolean handled = performPanelShortcut(mPreparedPanel, keyCode, event,
                            Menu.FLAG_PERFORM_NO_CLOSE);

                    if (!handled) {
                        /*
                         * If not handled, then pass it to the view hierarchy
                         * and anyone else that may be interested.
                         */
                        handled = dispatchKeyShortcutEvent(event);

                        if (handled && mPreparedPanel != null) {
                            mPreparedPanel.isHandled = true;
                        }
                    }

                    if (handled) {
                        return true;
                    }
                }

                // If a panel is open, perform a shortcut on it without the
                // chorded panel key
                if ((mPreparedPanel != null) && mPreparedPanel.isOpen) {
                    if (performPanelShortcut(mPreparedPanel, keyCode, event, 0)) {
                        return true;
                    }
                }
            }

            final Callback cb = getCallback();
            final boolean handled = cb != null && mFeatureId < 0 ? cb.dispatchKeyEvent(event)
                    : super.dispatchKeyEvent(event);
            if (handled) {
                return true;
            }
            return isDown ? PhoneWindow.this.onKeyDown(mFeatureId, event.getKeyCode(), event)
                    : PhoneWindow.this.onKeyUp(mFeatureId, event.getKeyCode(), event);
        }

        @Override
        public boolean dispatchTouchEvent(MotionEvent ev) {
            final Callback cb = getCallback();
            return cb != null && mFeatureId < 0 ? cb.dispatchTouchEvent(ev) : super
                    .dispatchTouchEvent(ev);
        }

        @Override
        public boolean dispatchTrackballEvent(MotionEvent ev) {
            final Callback cb = getCallback();
            return cb != null && mFeatureId < 0 ? cb.dispatchTrackballEvent(ev) : super
                    .dispatchTrackballEvent(ev);
        }

        public boolean superDispatchKeyEvent(KeyEvent event) {
            return super.dispatchKeyEvent(event);
        }

        public boolean superDispatchTouchEvent(MotionEvent event) {
            return super.dispatchTouchEvent(event);
        }

        public boolean superDispatchTrackballEvent(MotionEvent event) {
            return super.dispatchTrackballEvent(event);
        }

        @Override
        public boolean onTouchEvent(MotionEvent event) {
            return onInterceptTouchEvent(event);
        }

        private boolean isOutOfBounds(int x, int y) {
            return x < -5 || y < -5 || x > (getWidth() + 5)
                    || y > (getHeight() + 5);
        }

        @Override
        public boolean onInterceptTouchEvent(MotionEvent event) {
            int action = event.getAction();
            if (mFeatureId >= 0) {
                if (action == MotionEvent.ACTION_DOWN) {
                    int x = (int)event.getX();
                    int y = (int)event.getY();
                    if (isOutOfBounds(x, y)) {
                        closePanel(mFeatureId);
                        return true;
                    }
                }
            }

            if (!SWEEP_OPEN_MENU) {
                return false;
            }

            if (mFeatureId >= 0) {
                if (action == MotionEvent.ACTION_DOWN) {
                    Log.i(TAG, "Watchiing!");
                    mWatchingForMenu = true;
                    mDownY = (int) event.getY();
                    return false;
                }

                if (!mWatchingForMenu) {
                    return false;
                }

                int y = (int)event.getY();
                if (action == MotionEvent.ACTION_MOVE) {
                    if (y > (mDownY+30)) {
                        Log.i(TAG, "Closing!");
                        closePanel(mFeatureId);
                        mWatchingForMenu = false;
                        return true;
                    }
                } else if (action == MotionEvent.ACTION_UP) {
                    mWatchingForMenu = false;
                }

                return false;
            }

            //Log.i(TAG, "Intercept: action=" + action + " y=" + event.getY()
            //        + " (in " + getHeight() + ")");

            if (action == MotionEvent.ACTION_DOWN) {
                int y = (int)event.getY();
                if (y >= (getHeight()-5) && !hasChildren()) {
                    Log.i(TAG, "Watchiing!");
                    mWatchingForMenu = true;
                }
                return false;
            }

            if (!mWatchingForMenu) {
                return false;
            }

            int y = (int)event.getY();
            if (action == MotionEvent.ACTION_MOVE) {
                if (y < (getHeight()-30)) {
                    Log.i(TAG, "Opening!");
                    openPanel(FEATURE_OPTIONS_PANEL, new KeyEvent(
                            KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU));
                    mWatchingForMenu = false;
                    return true;
                }
            } else if (action == MotionEvent.ACTION_UP) {
                mWatchingForMenu = false;
            }

            return false;
        }

        @Override
        public void sendAccessibilityEvent(int eventType) {
            if (!AccessibilityManager.getInstance(mContext).isEnabled()) {
                return;
            }
 
            // if we are showing a feature that should be announced and one child
            // make this child the event source since this is the feature itself
            // otherwise the callback will take over and announce its client
            if ((mFeatureId == FEATURE_OPTIONS_PANEL ||
                    mFeatureId == FEATURE_CONTEXT_MENU ||
                    mFeatureId == FEATURE_PROGRESS ||
                    mFeatureId == FEATURE_INDETERMINATE_PROGRESS)
                    && getChildCount() == 1) {
                getChildAt(0).sendAccessibilityEvent(eventType);
            } else {
                super.sendAccessibilityEvent(eventType);
            }
        }

        @Override
        public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
            final Callback cb = getCallback();
            if (cb != null) {
                if (cb.dispatchPopulateAccessibilityEvent(event)) {
                    return true;
                }
            }
            return super.dispatchPopulateAccessibilityEvent(event);
        }

        @Override
        protected boolean setFrame(int l, int t, int r, int b) {
            boolean changed = super.setFrame(l, t, r, b);
            if (changed) {
                final Rect drawingBounds = mDrawingBounds;
                getDrawingRect(drawingBounds);

                Drawable fg = getForeground();
                if (fg != null) {
                    final Rect frameOffsets = mFrameOffsets;
                    drawingBounds.left += frameOffsets.left;
                    drawingBounds.top += frameOffsets.top;
                    drawingBounds.right -= frameOffsets.right;
                    drawingBounds.bottom -= frameOffsets.bottom;
                    fg.setBounds(drawingBounds);
                    final Rect framePadding = mFramePadding;
                    drawingBounds.left += framePadding.left - frameOffsets.left;
                    drawingBounds.top += framePadding.top - frameOffsets.top;
                    drawingBounds.right -= framePadding.right - frameOffsets.right;
                    drawingBounds.bottom -= framePadding.bottom - frameOffsets.bottom;
                }

                Drawable bg = getBackground();
                if (bg != null) {
                    bg.setBounds(drawingBounds);
                }

                if (SWEEP_OPEN_MENU) {
                    if (mMenuBackground == null && mFeatureId < 0
                            && getAttributes().height
                            == WindowManager.LayoutParams.MATCH_PARENT) {
                        mMenuBackground = getContext().getResources().getDrawable(
                                com.android.internal.R.drawable.menu_background);
                    }
                    if (mMenuBackground != null) {
                        mMenuBackground.setBounds(drawingBounds.left,
                                drawingBounds.bottom-6, drawingBounds.right,
                                drawingBounds.bottom+20);
                    }
                }
            }
            return changed;
        }

        @Override
        public void draw(Canvas canvas) {
            super.draw(canvas);

            if (mMenuBackground != null) {
                mMenuBackground.draw(canvas);
            }
        }


        @Override
        public boolean showContextMenuForChild(View originalView) {
            // Reuse the context menu builder
            if (mContextMenu == null) {
                mContextMenu = new ContextMenuBuilder(getContext());
                mContextMenu.setCallback(mContextMenuCallback);
            } else {
                mContextMenu.clearAll();
            }

            mContextMenuHelper = mContextMenu.show(originalView, originalView.getWindowToken());
            return mContextMenuHelper != null;
        }

        public void startChanging() {
            mChanging = true;
        }

        public void finishChanging() {
            mChanging = false;
            drawableChanged();
        }

        public void setWindowBackground(Drawable drawable) {
            if (getBackground() != drawable) {
                setBackgroundDrawable(drawable);
                if (drawable != null) {
                    drawable.getPadding(mBackgroundPadding);
                } else {
                    mBackgroundPadding.setEmpty();
                }
                drawableChanged();
            }
        }

        public void setWindowFrame(Drawable drawable) {
            if (getForeground() != drawable) {
                setForeground(drawable);
                if (drawable != null) {
                    drawable.getPadding(mFramePadding);
                } else {
                    mFramePadding.setEmpty();
                }
                drawableChanged();
            }
        }

        @Override
        protected boolean fitSystemWindows(Rect insets) {
            mFrameOffsets.set(insets);
            if (getForeground() != null) {
                drawableChanged();
            }
            return super.fitSystemWindows(insets);
        }

        private void drawableChanged() {
            if (mChanging) {
                return;
            }

            setPadding(mFramePadding.left + mBackgroundPadding.left, mFramePadding.top
                    + mBackgroundPadding.top, mFramePadding.right + mBackgroundPadding.right,
                    mFramePadding.bottom + mBackgroundPadding.bottom);
            requestLayout();
            invalidate();

            int opacity = PixelFormat.OPAQUE;

            // Note: if there is no background, we will assume opaque. The
            // common case seems to be that an application sets there to be
            // no background so it can draw everything itself. For that,
            // we would like to assume OPAQUE and let the app force it to
            // the slower TRANSLUCENT mode if that is really what it wants.
            Drawable bg = getBackground();
            Drawable fg = getForeground();
            if (bg != null) {
                if (fg == null) {
                    opacity = bg.getOpacity();
                } else if (mFramePadding.left <= 0 && mFramePadding.top <= 0
                        && mFramePadding.right <= 0 && mFramePadding.bottom <= 0) {
                    // If the frame padding is zero, then we can be opaque
                    // if either the frame -or- the background is opaque.
                    int fop = fg.getOpacity();
                    int bop = bg.getOpacity();
                    if (Config.LOGV)
                        Log.v(TAG, "Background opacity: " + bop + ", Frame opacity: " + fop);
                    if (fop == PixelFormat.OPAQUE || bop == PixelFormat.OPAQUE) {
                        opacity = PixelFormat.OPAQUE;
                    } else if (fop == PixelFormat.UNKNOWN) {
                        opacity = bop;
                    } else if (bop == PixelFormat.UNKNOWN) {
                        opacity = fop;
                    } else {
                        opacity = Drawable.resolveOpacity(fop, bop);
                    }
                } else {
                    // For now we have to assume translucent if there is a
                    // frame with padding... there is no way to tell if the
                    // frame and background together will draw all pixels.
                    if (Config.LOGV)
                        Log.v(TAG, "Padding: " + mFramePadding);
                    opacity = PixelFormat.TRANSLUCENT;
                }
            }

            if (Config.LOGV)
                Log.v(TAG, "Background: " + bg + ", Frame: " + fg);
            if (Config.LOGV)
                Log.v(TAG, "Selected default opacity: " + opacity);

            mDefaultOpacity = opacity;
            if (mFeatureId < 0) {
                setDefaultWindowFormat(opacity);
            }
        }

        @Override
        public void onWindowFocusChanged(boolean hasWindowFocus) {
            super.onWindowFocusChanged(hasWindowFocus);

            mPanelMayLongPress = false;

            // If the user is chording a menu shortcut, release the chord since
            // this window lost focus
            if (!hasWindowFocus && mPanelChordingKey != 0) {
                closePanel(FEATURE_OPTIONS_PANEL);
            }

            final Callback cb = getCallback();
            if (cb != null && mFeatureId < 0) {
                cb.onWindowFocusChanged(hasWindowFocus);
            }
        }

        @Override
        protected void onAttachedToWindow() {
            super.onAttachedToWindow();
            
            final Callback cb = getCallback();
            if (cb != null && mFeatureId < 0) {
                cb.onAttachedToWindow();
            }

            if (mFeatureId == -1) {
                /*
                 * The main window has been attached, try to restore any panels
                 * that may have been open before. This is called in cases where
                 * an activity is being killed for configuration change and the
                 * menu was open. When the activity is recreated, the menu
                 * should be shown again.
                 */
                openPanelsAfterRestore();
            }
        }

        @Override
        protected void onDetachedFromWindow() {
            super.onDetachedFromWindow();
            
            final Callback cb = getCallback();
            if (cb != null && mFeatureId < 0) {
                cb.onDetachedFromWindow();
            }
        }
        
        @Override
        public void onCloseSystemDialogs(String reason) {
            if (mFeatureId >= 0) {
                closeAllPanels();
            }
        }

        public android.view.SurfaceHolder.Callback willYouTakeTheSurface() {
            return mFeatureId < 0 ? mTakeSurfaceCallback : null;
        }
        
        public void setSurfaceType(int type) {
            PhoneWindow.this.setType(type);
        }
        
        public void setSurfaceFormat(int format) {
            PhoneWindow.this.setFormat(format);
        }
        
        public void setSurfaceKeepScreenOn(boolean keepOn) {
            if (keepOn) PhoneWindow.this.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
            else PhoneWindow.this.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
        }
    }

    protected DecorView generateDecor() {
        return new DecorView(getContext(), -1);
    }

    protected void setFeatureFromAttrs(int featureId, TypedArray attrs,
            int drawableAttr, int alphaAttr) {
        Drawable d = attrs.getDrawable(drawableAttr);
        if (d != null) {
            requestFeature(featureId);
            setFeatureDefaultDrawable(featureId, d);
        }
        if ((getFeatures() & (1 << featureId)) != 0) {
            int alpha = attrs.getInt(alphaAttr, -1);
            if (alpha >= 0) {
                setFeatureDrawableAlpha(featureId, alpha);
            }
        }
    }

    protected ViewGroup generateLayout(DecorView decor) {
        // Apply data from current theme.

        TypedArray a = getWindowStyle();

        if (false) {
            System.out.println("From style:");
            String s = "Attrs:";
            for (int i = 0; i < com.android.internal.R.styleable.Window.length; i++) {
                s = s + " " + Integer.toHexString(com.android.internal.R.styleable.Window[i]) + "="
                        + a.getString(i);
            }
            System.out.println(s);
        }

        mIsFloating = a.getBoolean(com.android.internal.R.styleable.Window_windowIsFloating, false);
        int flagsToUpdate = (FLAG_LAYOUT_IN_SCREEN|FLAG_LAYOUT_INSET_DECOR)
                & (~getForcedWindowFlags());
        if (mIsFloating) {
            setLayout(WRAP_CONTENT, WRAP_CONTENT);
            setFlags(0, flagsToUpdate);
        } else {
            setFlags(FLAG_LAYOUT_IN_SCREEN|FLAG_LAYOUT_INSET_DECOR, flagsToUpdate);
        }

        if (a.getBoolean(com.android.internal.R.styleable.Window_windowNoTitle, false)) {
            requestFeature(FEATURE_NO_TITLE);
        }

        if (a.getBoolean(com.android.internal.R.styleable.Window_windowFullscreen, false)) {
            setFlags(FLAG_FULLSCREEN, FLAG_FULLSCREEN&(~getForcedWindowFlags()));
        }

        if (a.getBoolean(com.android.internal.R.styleable.Window_windowShowWallpaper, false)) {
            setFlags(FLAG_SHOW_WALLPAPER, FLAG_SHOW_WALLPAPER&(~getForcedWindowFlags()));
        }

        WindowManager.LayoutParams params = getAttributes();

        if (!hasSoftInputMode()) {
            params.softInputMode = a.getInt(
                    com.android.internal.R.styleable.Window_windowSoftInputMode,
                    params.softInputMode);
        }

        if (a.getBoolean(com.android.internal.R.styleable.Window_backgroundDimEnabled,
                mIsFloating)) {
            /* All dialogs should have the window dimmed */
            if ((getForcedWindowFlags()&WindowManager.LayoutParams.FLAG_DIM_BEHIND) == 0) {
                params.flags |= WindowManager.LayoutParams.FLAG_DIM_BEHIND;
            }
            params.dimAmount = a.getFloat(
                    android.R.styleable.Window_backgroundDimAmount, 0.5f);
        }

        if (params.windowAnimations == 0) {
            params.windowAnimations = a.getResourceId(
                    com.android.internal.R.styleable.Window_windowAnimationStyle, 0);
        }

        // The rest are only done if this window is not embedded; otherwise,
        // the values are inherited from our container.
        if (getContainer() == null) {
            if (mBackgroundDrawable == null) {
                if (mBackgroundResource == 0) {
                    mBackgroundResource = a.getResourceId(
                            com.android.internal.R.styleable.Window_windowBackground, 0);
                }
                if (mFrameResource == 0) {
                    mFrameResource = a.getResourceId(com.android.internal.R.styleable.Window_windowFrame, 0);
                }
                if (false) {
                    System.out.println("Background: "
                            + Integer.toHexString(mBackgroundResource) + " Frame: "
                            + Integer.toHexString(mFrameResource));
                }
            }
            mTextColor = a.getColor(com.android.internal.R.styleable.Window_textColor, 0xFF000000);
        }

        // Inflate the window decor.

        int layoutResource;
        int features = getLocalFeatures();
        // System.out.println("Features: 0x" + Integer.toHexString(features));
        if ((features & ((1 << FEATURE_LEFT_ICON) | (1 << FEATURE_RIGHT_ICON))) != 0) {
            if (mIsFloating) {
                layoutResource = com.android.internal.R.layout.dialog_title_icons;
            } else {
                layoutResource = com.android.internal.R.layout.screen_title_icons;
            }
            // System.out.println("Title Icons!");
        } else if ((features & ((1 << FEATURE_PROGRESS) | (1 << FEATURE_INDETERMINATE_PROGRESS))) != 0) {
            // Special case for a window with only a progress bar (and title).
            // XXX Need to have a no-title version of embedded windows.
            layoutResource = com.android.internal.R.layout.screen_progress;
            // System.out.println("Progress!");
        } else if ((features & (1 << FEATURE_CUSTOM_TITLE)) != 0) {
            // Special case for a window with a custom title.
            // If the window is floating, we need a dialog layout
            if (mIsFloating) {
                layoutResource = com.android.internal.R.layout.dialog_custom_title;
            } else {
                layoutResource = com.android.internal.R.layout.screen_custom_title;
            }
        } else if ((features & (1 << FEATURE_NO_TITLE)) == 0) {
            // If no other features and not embedded, only need a title.
            // If the window is floating, we need a dialog layout
            if (mIsFloating) {
                layoutResource = com.android.internal.R.layout.dialog_title;
            } else {
                layoutResource = com.android.internal.R.layout.screen_title;
            }
            // System.out.println("Title!");
        } else {
            // Embedded, so no decoration is needed.
            layoutResource = com.android.internal.R.layout.screen_simple;
            // System.out.println("Simple!");
        }

        mDecor.startChanging();

        View in = mLayoutInflater.inflate(layoutResource, null);
        decor.addView(in, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));

        ViewGroup contentParent = (ViewGroup)findViewById(ID_ANDROID_CONTENT);
        if (contentParent == null) {
            throw new RuntimeException("Window couldn't find content container view");
        }

        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
            ProgressBar progress = getCircularProgressBar(false);
            if (progress != null) {
                progress.setIndeterminate(true);
            }
        }

        // Remaining setup -- of background and title -- that only applies
        // to top-level windows.
        if (getContainer() == null) {
            Drawable drawable = mBackgroundDrawable;
            if (mBackgroundResource != 0) {
                drawable = getContext().getResources().getDrawable(mBackgroundResource);
            }
            mDecor.setWindowBackground(drawable);
            drawable = null;
            if (mFrameResource != 0) {
                drawable = getContext().getResources().getDrawable(mFrameResource);
            }
            mDecor.setWindowFrame(drawable);

            // System.out.println("Text=" + Integer.toHexString(mTextColor) +
            // " Sel=" + Integer.toHexString(mTextSelectedColor) +
            // " Title=" + Integer.toHexString(mTitleColor));

            if (mTitleColor == 0) {
                mTitleColor = mTextColor;
            }

            if (mTitle != null) {
                setTitle(mTitle);
            }
            setTitleColor(mTitleColor);
        }

        mDecor.finishChanging();

        return contentParent;
    }

    private void installDecor() {
        if (mDecor == null) {
            mDecor = generateDecor();
            mDecor.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
            mDecor.setIsRootNamespace(true);
        }
        if (mContentParent == null) {
            mContentParent = generateLayout(mDecor);

            mTitleView = (TextView)findViewById(com.android.internal.R.id.title);
            if (mTitleView != null) {
                if ((getLocalFeatures() & (1 << FEATURE_NO_TITLE)) != 0) {
                    View titleContainer = findViewById(com.android.internal.R.id.title_container);
                    if (titleContainer != null) {
                        titleContainer.setVisibility(View.GONE);
                    } else {
                        mTitleView.setVisibility(View.GONE);
                    }
                    if (mContentParent instanceof FrameLayout) {
                        ((FrameLayout)mContentParent).setForeground(null);
                    }
                } else {
                    mTitleView.setText(mTitle);
                }
            }
        }
    }

    private Drawable loadImageURI(Uri uri) {
        try {
            return Drawable.createFromStream(
                    getContext().getContentResolver().openInputStream(uri), null);
        } catch (Exception e) {
            Log.w(TAG, "Unable to open content: " + uri);
        }
        return null;
    }

    private DrawableFeatureState getDrawableState(int featureId, boolean required) {
        if ((getFeatures() & (1 << featureId)) == 0) {
            if (!required) {
                return null;
            }
            throw new RuntimeException("The feature has not been requested");
        }

        DrawableFeatureState[] ar;
        if ((ar = mDrawables) == null || ar.length <= featureId) {
            DrawableFeatureState[] nar = new DrawableFeatureState[featureId + 1];
            if (ar != null) {
                System.arraycopy(ar, 0, nar, 0, ar.length);
            }
            mDrawables = ar = nar;
        }

        DrawableFeatureState st = ar[featureId];
        if (st == null) {
            ar[featureId] = st = new DrawableFeatureState(featureId);
        }
        return st;
    }

    /**
     * Gets a panel's state based on its feature ID.
     *
     * @param featureId The feature ID of the panel.
     * @param required Whether the panel is required (if it is required and it
     *            isn't in our features, this throws an exception).
     * @return The panel state.
     */
    private PanelFeatureState getPanelState(int featureId, boolean required) {
        return getPanelState(featureId, required, null);
    }

    /**
     * Gets a panel's state based on its feature ID.
     *
     * @param featureId The feature ID of the panel.
     * @param required Whether the panel is required (if it is required and it
     *            isn't in our features, this throws an exception).
     * @param convertPanelState Optional: If the panel state does not exist, use
     *            this as the panel state.
     * @return The panel state.
     */
    private PanelFeatureState getPanelState(int featureId, boolean required,
            PanelFeatureState convertPanelState) {
        if ((getFeatures() & (1 << featureId)) == 0) {
            if (!required) {
                return null;
            }
            throw new RuntimeException("The feature has not been requested");
        }

        PanelFeatureState[] ar;
        if ((ar = mPanels) == null || ar.length <= featureId) {
            PanelFeatureState[] nar = new PanelFeatureState[featureId + 1];
            if (ar != null) {
                System.arraycopy(ar, 0, nar, 0, ar.length);
            }
            mPanels = ar = nar;
        }

        PanelFeatureState st = ar[featureId];
        if (st == null) {
            ar[featureId] = st = (convertPanelState != null)
                    ? convertPanelState
                    : new PanelFeatureState(featureId);
        }
        return st;
    }

    @Override
    public final void setChildDrawable(int featureId, Drawable drawable) {
        DrawableFeatureState st = getDrawableState(featureId, true);
        st.child = drawable;
        updateDrawable(featureId, st, false);
    }

    @Override
    public final void setChildInt(int featureId, int value) {
        updateInt(featureId, value, false);
    }

    @Override
    public boolean isShortcutKey(int keyCode, KeyEvent event) {
        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
        return st.menu != null && st.menu.isShortcutKey(keyCode, event);
    }

    private void updateDrawable(int featureId, DrawableFeatureState st, boolean fromResume) {
        // Do nothing if the decor is not yet installed... an update will
        // need to be forced when we eventually become active.
        if (mContentParent == null) {
            return;
        }

        final int featureMask = 1 << featureId;

        if ((getFeatures() & featureMask) == 0 && !fromResume) {
            return;
        }

        Drawable drawable = null;
        if (st != null) {
            drawable = st.child;
            if (drawable == null)
                drawable = st.local;
            if (drawable == null)
                drawable = st.def;
        }
        if ((getLocalFeatures() & featureMask) == 0) {
            if (getContainer() != null) {
                if (isActive() || fromResume) {
                    getContainer().setChildDrawable(featureId, drawable);
                }
            }
        } else if (st != null && (st.cur != drawable || st.curAlpha != st.alpha)) {
            // System.out.println("Drawable changed: old=" + st.cur
            // + ", new=" + drawable);
            st.cur = drawable;
            st.curAlpha = st.alpha;
            onDrawableChanged(featureId, drawable, st.alpha);
        }
    }

    private void updateInt(int featureId, int value, boolean fromResume) {

        // Do nothing if the decor is not yet installed... an update will
        // need to be forced when we eventually become active.
        if (mContentParent == null) {
            return;
        }

        final int featureMask = 1 << featureId;

        if ((getFeatures() & featureMask) == 0 && !fromResume) {
            return;
        }

        if ((getLocalFeatures() & featureMask) == 0) {
            if (getContainer() != null) {
                getContainer().setChildInt(featureId, value);
            }
        } else {
            onIntChanged(featureId, value);
        }
    }

    private ImageView getLeftIconView() {
        if (mLeftIconView != null) {
            return mLeftIconView;
        }
        if (mContentParent == null) {
            installDecor();
        }
        return (mLeftIconView = (ImageView)findViewById(com.android.internal.R.id.left_icon));
    }

    private ProgressBar getCircularProgressBar(boolean shouldInstallDecor) {
        if (mCircularProgressBar != null) {
            return mCircularProgressBar;
        }
        if (mContentParent == null && shouldInstallDecor) {
            installDecor();
        }
        mCircularProgressBar = (ProgressBar)findViewById(com.android.internal.R.id.progress_circular);
        mCircularProgressBar.setVisibility(View.INVISIBLE);
        return mCircularProgressBar;
    }

    private ProgressBar getHorizontalProgressBar(boolean shouldInstallDecor) {
        if (mHorizontalProgressBar != null) {
            return mHorizontalProgressBar;
        }
        if (mContentParent == null && shouldInstallDecor) {
            installDecor();
        }
        mHorizontalProgressBar = (ProgressBar)findViewById(com.android.internal.R.id.progress_horizontal);
        mHorizontalProgressBar.setVisibility(View.INVISIBLE);
        return mHorizontalProgressBar;
    }

    private ImageView getRightIconView() {
        if (mRightIconView != null) {
            return mRightIconView;
        }
        if (mContentParent == null) {
            installDecor();
        }
        return (mRightIconView = (ImageView)findViewById(com.android.internal.R.id.right_icon));
    }

    /**
     * Helper method for calling the {@link Callback#onPanelClosed(int, Menu)}
     * callback. This method will grab whatever extra state is needed for the
     * callback that isn't given in the parameters. If the panel is not open,
     * this will not perform the callback.
     *
     * @param featureId Feature ID of the panel that was closed. Must be given.
     * @param panel Panel that was closed. Optional but useful if there is no
     *            menu given.
     * @param menu The menu that was closed. Optional, but give if you have.
     */
    private void callOnPanelClosed(int featureId, PanelFeatureState panel, Menu menu) {
        final Callback cb = getCallback();
        if (cb == null)
            return;

        // Try to get a menu
        if (menu == null) {
            // Need a panel to grab the menu, so try to get that
            if (panel == null) {
                if ((featureId >= 0) && (featureId < mPanels.length)) {
                    panel = mPanels[featureId];
                }
            }

            if (panel != null) {
                // menu still may be null, which is okay--we tried our best
                menu = panel.menu;
            }
        }

        // If the panel is not open, do not callback
        if ((panel != null) && (!panel.isOpen))
            return;

        cb.onPanelClosed(featureId, menu);
    }

    /**
     * Helper method for adding launch-search to most applications. Opens the
     * search window using default settings.
     *
     * @return true if search window opened
     */
    private boolean launchDefaultSearch() {
        final Callback cb = getCallback();
        if (cb == null) {
            return false;
        } else {
            sendCloseSystemWindows("search");
            return cb.onSearchRequested();
        }
    }

    @Override
    public void setVolumeControlStream(int streamType) {
        mVolumeControlStreamType = streamType;
    }

    @Override
    public int getVolumeControlStream() {
        return mVolumeControlStreamType;
    }

    private static final class DrawableFeatureState {
        DrawableFeatureState(int _featureId) {
            featureId = _featureId;
        }

        final int featureId;

        int resid;

        Uri uri;

        Drawable local;

        Drawable child;

        Drawable def;

        Drawable cur;

        int alpha = 255;

        int curAlpha = 255;
    }

    private static final class PanelFeatureState {

        /** Feature ID for this panel. */
        int featureId;

        // Information pulled from the style for this panel.

        int background;

        /** The background when the panel spans the entire available width. */
        int fullBackground;

        int gravity;

        int x;

        int y;

        int windowAnimations;

        /** Dynamic state of the panel. */
        DecorView decorView;

        /** The panel that was returned by onCreatePanelView(). */
        View createdPanelView;

        /** The panel that we are actually showing. */
        View shownPanelView;

        /** Use {@link #setMenu} to set this. */
        Menu menu;

        /**
         * Whether the panel has been prepared (see
         * {@link PhoneWindow#preparePanel}).
         */
        boolean isPrepared;

        /**
         * Whether an item's action has been performed. This happens in obvious
         * scenarios (user clicks on menu item), but can also happen with
         * chording menu+(shortcut key).
         */
        boolean isHandled;

        boolean isOpen;

        /**
         * True if the menu is in expanded mode, false if the menu is in icon
         * mode
         */
        boolean isInExpandedMode;

        public boolean qwertyMode;

        boolean refreshDecorView;

        boolean wasLastOpen;
        
        boolean wasLastExpanded;
        
        /**
         * Contains the state of the menu when told to freeze.
         */
        Bundle frozenMenuState;

        PanelFeatureState(int featureId) {
            this.featureId = featureId;

            refreshDecorView = false;
        }

        void setStyle(Context context) {
            TypedArray a = context.obtainStyledAttributes(com.android.internal.R.styleable.Theme);
            background = a.getResourceId(
                    com.android.internal.R.styleable.Theme_panelBackground, 0);
            fullBackground = a.getResourceId(
                    com.android.internal.R.styleable.Theme_panelFullBackground, 0);
            windowAnimations = a.getResourceId(
                    com.android.internal.R.styleable.Theme_windowAnimationStyle, 0);
            a.recycle();
        }

        void setMenu(Menu menu) {
            this.menu = menu;

            if (frozenMenuState != null) {
                ((MenuBuilder) menu).restoreHierarchyState(frozenMenuState);
                frozenMenuState = null;
            }
        }

        Parcelable onSaveInstanceState() {
            SavedState savedState = new SavedState();
            savedState.featureId = featureId;
            savedState.isOpen = isOpen;
            savedState.isInExpandedMode = isInExpandedMode;

            if (menu != null) {
                savedState.menuState = new Bundle();
                ((MenuBuilder) menu).saveHierarchyState(savedState.menuState);
            }

            return savedState;
        }

        void onRestoreInstanceState(Parcelable state) {
            SavedState savedState = (SavedState) state;
            featureId = savedState.featureId;
            wasLastOpen = savedState.isOpen;
            wasLastExpanded = savedState.isInExpandedMode;
            frozenMenuState = savedState.menuState;

            /*
             * A LocalActivityManager keeps the same instance of this class around.
             * The first time the menu is being shown after restoring, the
             * Activity.onCreateOptionsMenu should be called. But, if it is the
             * same instance then menu != null and we won't call that method.
             * So, clear this.  Also clear any cached views.
             */
            menu = null;
            createdPanelView = null;
            shownPanelView = null;
            decorView = null;
        }

        private static class SavedState implements Parcelable {
            int featureId;
            boolean isOpen;
            boolean isInExpandedMode;
            Bundle menuState;

            public int describeContents() {
                return 0;
            }

            public void writeToParcel(Parcel dest, int flags) {
                dest.writeInt(featureId);
                dest.writeInt(isOpen ? 1 : 0);
                dest.writeInt(isInExpandedMode ? 1 : 0);

                if (isOpen) {
                    dest.writeBundle(menuState);
                }
            }

            private static SavedState readFromParcel(Parcel source) {
                SavedState savedState = new SavedState();
                savedState.featureId = source.readInt();
                savedState.isOpen = source.readInt() == 1;
                savedState.isInExpandedMode = source.readInt() == 1;

                if (savedState.isOpen) {
                    savedState.menuState = source.readBundle();
                }

                return savedState;
            }

            public static final Parcelable.Creator<SavedState> CREATOR
                    = new Parcelable.Creator<SavedState>() {
                public SavedState createFromParcel(Parcel in) {
                    return readFromParcel(in);
                }

                public SavedState[] newArray(int size) {
                    return new SavedState[size];
                }
            };
        }

    }

    /**
     * Simple implementation of MenuBuilder.Callback that:
     * <li> Opens a submenu when selected.
     * <li> Calls back to the callback's onMenuItemSelected when an item is
     * selected.
     */
    private final class ContextMenuCallback implements MenuBuilder.Callback {
        private int mFeatureId;
        private MenuDialogHelper mSubMenuHelper;

        public ContextMenuCallback(int featureId) {
            mFeatureId = featureId;
        }

        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
            if (allMenusAreClosing) {
                Callback callback = getCallback();
                if (callback != null) callback.onPanelClosed(mFeatureId, menu);

                if (menu == mContextMenu) {
                    dismissContextMenu();
                }

                // Dismiss the submenu, if it is showing
                if (mSubMenuHelper != null) {
                    mSubMenuHelper.dismiss();
                    mSubMenuHelper = null;
                }
            }
        }

        public void onCloseSubMenu(SubMenuBuilder menu) {
            Callback callback = getCallback();
            if (callback != null) callback.onPanelClosed(mFeatureId, menu.getRootMenu());
        }

        public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
            Callback callback = getCallback();
            return (callback != null) && callback.onMenuItemSelected(mFeatureId, item);
        }

        public void onMenuModeChange(MenuBuilder menu) {
        }

        public boolean onSubMenuSelected(SubMenuBuilder subMenu) {
            // Set a simple callback for the submenu
            subMenu.setCallback(this);

            // The window manager will give us a valid window token
            mSubMenuHelper = new MenuDialogHelper(subMenu);
            mSubMenuHelper.show(null);

            return true;
        }
    }

    void sendCloseSystemWindows() {
        PhoneWindowManager.sendCloseSystemWindows(getContext(), null);
    }

    void sendCloseSystemWindows(String reason) {
        PhoneWindowManager.sendCloseSystemWindows(getContext(), reason);
    }
}