packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java

/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * 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.systemui.statusbar;

import java.util.ArrayList;

import android.content.Context;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.util.Log;
import android.util.Slog;
import android.view.Display;
import android.view.IWindowManager;
import android.view.View;
import android.view.WindowManager;

import com.android.internal.statusbar.IStatusBarService;
import com.android.internal.statusbar.StatusBarIcon;
import com.android.internal.statusbar.StatusBarIconList;
import com.android.internal.statusbar.StatusBarNotification;
import com.android.systemui.SystemUI;
import com.android.systemui.statusbar.CommandQueue;

import com.android.systemui.R;

public abstract class BaseStatusBar extends SystemUI implements CommandQueue.Callbacks {
    static final String TAG = "StatusBar";
    private static final boolean DEBUG = false;

    protected CommandQueue mCommandQueue;
    protected IStatusBarService mBarService;

    // UI-specific methods
    
    /**
     * Create all windows necessary for the status bar (including navigation, overlay panels, etc)
     * and add them to the window manager.
     */
    protected abstract void createAndAddWindows();

    protected Display mDisplay;
    private IWindowManager mWindowManager;

    
    public IWindowManager getWindowManager() {
        return mWindowManager;
    }
    
    public Display getDisplay() {
        return mDisplay;
    }
    
    public IStatusBarService getStatusBarService() {
        return mBarService;
    }

    public void start() {
        mDisplay = ((WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE))
                .getDefaultDisplay();

        mWindowManager = IWindowManager.Stub.asInterface(
                ServiceManager.getService(Context.WINDOW_SERVICE));

        mBarService = IStatusBarService.Stub.asInterface(
                ServiceManager.getService(Context.STATUS_BAR_SERVICE));

        // Connect in to the status bar manager service
        StatusBarIconList iconList = new StatusBarIconList();
        ArrayList<IBinder> notificationKeys = new ArrayList<IBinder>();
        ArrayList<StatusBarNotification> notifications = new ArrayList<StatusBarNotification>();
        mCommandQueue = new CommandQueue(this, iconList);
        
        int[] switches = new int[7];
        ArrayList<IBinder> binders = new ArrayList<IBinder>();
        try {
            mBarService.registerStatusBar(mCommandQueue, iconList, notificationKeys, notifications,
                    switches, binders);
        } catch (RemoteException ex) {
            // If the system process isn't there we're doomed anyway.
        }
        
        createAndAddWindows();

        disable(switches[0]);
        setSystemUiVisibility(switches[1]);
        topAppWindowChanged(switches[2] != 0);
        // StatusBarManagerService has a back up of IME token and it's restored here.
        setImeWindowStatus(binders.get(0), switches[3], switches[4]);
        setHardKeyboardStatus(switches[5] != 0, switches[6] != 0);

        // Set up the initial icon state
        int N = iconList.size();
        int viewIndex = 0;
        for (int i=0; i<N; i++) {
            StatusBarIcon icon = iconList.getIcon(i);
            if (icon != null) {
                addIcon(iconList.getSlot(i), i, viewIndex, icon);
                viewIndex++;
            }
        }

        // Set up the initial notification state
        N = notificationKeys.size();
        if (N == notifications.size()) {
            for (int i=0; i<N; i++) {
                addNotification(notificationKeys.get(i), notifications.get(i));
            }
        } else {
            Log.wtf(TAG, "Notification list length mismatch: keys=" + N
                    + " notifications=" + notifications.size());
        }

        if (DEBUG) {
            Slog.d(TAG, String.format(
                    "init: icons=%d disabled=0x%08x lights=0x%08x menu=0x%08x imeButton=0x%08x", 
                   iconList.size(),
                   switches[0],
                   switches[1],
                   switches[2],
                   switches[3]
                   ));
        }
    }
    
    protected View updateNotificationVetoButton(View row, StatusBarNotification n) {
        View vetoButton = row.findViewById(R.id.veto);
        if (n.isClearable()) {
            final String _pkg = n.pkg;
            final String _tag = n.tag;
            final int _id = n.id;
            vetoButton.setOnClickListener(new View.OnClickListener() {
                    public void onClick(View v) {
                        try {
                            mBarService.onNotificationClear(_pkg, _tag, _id);
                        } catch (RemoteException ex) {
                            // system process is dead if we're here.
                        }
                    }
                });
            vetoButton.setVisibility(View.VISIBLE);
        } else {
            vetoButton.setVisibility(View.GONE);
        }
        return vetoButton;
    }
}