| /* |
| * 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.policy.statusbar.phone; |
| |
| import android.os.Handler; |
| import android.os.Message; |
| import android.util.Slog; |
| |
| import com.android.internal.statusbar.IStatusBar; |
| import com.android.internal.statusbar.StatusBarIcon; |
| import com.android.internal.statusbar.StatusBarIconList; |
| |
| /** |
| * This class takes the functions from IStatusBar that come in on |
| * binder pool threads and posts messages to get them onto the main |
| * thread, and calls onto Callbacks. It also takes care of |
| * coalescing these calls so they don't stack up. For the calls |
| * are coalesced, note that they are all idempotent. |
| */ |
| class CommandQueue extends IStatusBar.Stub { |
| private static final String TAG = "StatusBar.CommandQueue"; |
| |
| private static final int MSG_MASK = 0xffff0000; |
| private static final int INDEX_MASK = 0x0000ffff; |
| |
| private static final int MSG_ICON = 0x00010000; |
| private static final int OP_SET_ICON = 1; |
| private static final int OP_REMOVE_ICON = 2; |
| |
| private static final int MSG_DISABLE = 0x00020000; |
| |
| private static final int MSG_SET_VISIBILITY = 0x00030000; |
| private static final int OP_EXPAND = 1; |
| private static final int OP_COLLAPSE = 2; |
| |
| private StatusBarIconList mList; |
| private Callbacks mCallbacks; |
| private Handler mHandler = new H(); |
| |
| /** |
| * These methods are called back on the main thread. |
| */ |
| public interface Callbacks { |
| public void addIcon(String slot, int index, int viewIndex, StatusBarIcon icon); |
| public void updateIcon(String slot, int index, int viewIndex, |
| StatusBarIcon old, StatusBarIcon icon); |
| public void removeIcon(String slot, int index, int viewIndex); |
| public void disable(int state); |
| public void animateExpand(); |
| public void animateCollapse(); |
| } |
| |
| public CommandQueue(Callbacks callbacks, StatusBarIconList list) { |
| mCallbacks = callbacks; |
| mList = list; |
| } |
| |
| public void setIcon(int index, StatusBarIcon icon) { |
| synchronized (mList) { |
| int what = MSG_ICON | index; |
| mHandler.removeMessages(what); |
| mHandler.obtainMessage(what, OP_SET_ICON, 0, icon.clone()).sendToTarget(); |
| } |
| } |
| |
| public void removeIcon(int index) { |
| synchronized (mList) { |
| int what = MSG_ICON | index; |
| mHandler.removeMessages(what); |
| mHandler.obtainMessage(what, OP_REMOVE_ICON, 0, null).sendToTarget(); |
| } |
| } |
| |
| public void disable(int state) { |
| synchronized (mList) { |
| mHandler.removeMessages(MSG_DISABLE); |
| mHandler.obtainMessage(MSG_DISABLE, state, 0, null).sendToTarget(); |
| } |
| } |
| |
| public void animateExpand() { |
| synchronized (mList) { |
| mHandler.removeMessages(MSG_SET_VISIBILITY); |
| mHandler.obtainMessage(MSG_SET_VISIBILITY, OP_EXPAND, 0, null).sendToTarget(); |
| } |
| } |
| |
| public void animateCollapse() { |
| synchronized (mList) { |
| mHandler.removeMessages(MSG_SET_VISIBILITY); |
| mHandler.obtainMessage(MSG_SET_VISIBILITY, OP_COLLAPSE, 0, null).sendToTarget(); |
| } |
| } |
| |
| private final class H extends Handler { |
| public void handleMessage(Message msg) { |
| final int what = msg.what & MSG_MASK; |
| Slog.d(TAG, "handleMessage what=0x" + Integer.toHexString(what) + " arg1=" + msg.arg1); |
| switch (what) { |
| case MSG_ICON: { |
| final int index = msg.what & INDEX_MASK; |
| final int viewIndex = mList.getViewIndex(index); |
| switch (msg.arg1) { |
| case OP_SET_ICON: { |
| StatusBarIcon icon = (StatusBarIcon)msg.obj; |
| StatusBarIcon old = mList.getIcon(index); |
| if (old == null) { |
| mList.setIcon(index, icon); |
| mCallbacks.addIcon(mList.getSlot(index), index, viewIndex, icon); |
| } else { |
| mList.setIcon(index, icon); |
| mCallbacks.updateIcon(mList.getSlot(index), index, viewIndex, |
| old, icon); |
| } |
| break; |
| } |
| case OP_REMOVE_ICON: |
| mList.removeIcon(index); |
| mCallbacks.removeIcon(mList.getSlot(index), index, viewIndex); |
| break; |
| } |
| break; |
| } |
| case MSG_DISABLE: |
| mCallbacks.disable(msg.arg1); |
| break; |
| case MSG_SET_VISIBILITY: |
| if (msg.arg1 == OP_EXPAND) { |
| mCallbacks.animateExpand(); |
| } else { |
| mCallbacks.animateCollapse(); |
| } |
| } |
| } |
| } |
| } |
| |
| |