diff options
Diffstat (limited to 'packages/StatusBarPhone/src/com/android/policy/statusbar/phone/CommandQueue.java')
-rw-r--r-- | packages/StatusBarPhone/src/com/android/policy/statusbar/phone/CommandQueue.java | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/packages/StatusBarPhone/src/com/android/policy/statusbar/phone/CommandQueue.java b/packages/StatusBarPhone/src/com/android/policy/statusbar/phone/CommandQueue.java new file mode 100644 index 0000000..b21f65d --- /dev/null +++ b/packages/StatusBarPhone/src/com/android/policy/statusbar/phone/CommandQueue.java @@ -0,0 +1,103 @@ +/* + * 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 com.android.internal.statusbar.IStatusBar; +import com.android.internal.statusbar.StatusBarIcon; +import com.android.internal.statusbar.StatusBarIconList; + +class CommandQueue extends IStatusBar.Stub { + + 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 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 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(); + } + } + + private final class H extends Handler { + public void handleMessage(Message msg) { + int what = msg.what & MSG_MASK; + switch (msg.what) { + case MSG_ICON: { + int index = msg.what & INDEX_MASK; + 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; + } + } + } + } +} + + |