| /* |
| * Copyright (C) 2013 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.server.wm; |
| |
| import static com.android.server.wm.WindowManagerService.TAG; |
| import static com.android.server.wm.WindowManagerService.DEBUG_STACK; |
| |
| import android.util.EventLog; |
| import android.util.Slog; |
| import com.android.server.EventLogTags; |
| |
| class Task { |
| TaskStack mStack; |
| final AppTokenList mAppTokens = new AppTokenList(); |
| final int mTaskId; |
| final int mUserId; |
| boolean mDeferRemoval = false; |
| final WindowManagerService mService; |
| |
| Task(int taskId, TaskStack stack, int userId, WindowManagerService service) { |
| mTaskId = taskId; |
| mStack = stack; |
| mUserId = userId; |
| mService = service; |
| } |
| |
| DisplayContent getDisplayContent() { |
| return mStack.getDisplayContent(); |
| } |
| |
| void addAppToken(int addPos, AppWindowToken wtoken) { |
| final int lastPos = mAppTokens.size(); |
| if (addPos >= lastPos) { |
| addPos = lastPos; |
| } else { |
| for (int pos = 0; pos < lastPos && pos < addPos; ++pos) { |
| if (mAppTokens.get(pos).removed) { |
| // addPos assumes removed tokens are actually gone. |
| ++addPos; |
| } |
| } |
| } |
| mAppTokens.add(addPos, wtoken); |
| wtoken.mTask = this; |
| mDeferRemoval = false; |
| } |
| |
| void removeLocked() { |
| if (!mAppTokens.isEmpty() && mStack.isAnimating()) { |
| if (DEBUG_STACK) Slog.i(TAG, "removeTask: deferring removing taskId=" + mTaskId); |
| mDeferRemoval = true; |
| return; |
| } |
| if (DEBUG_STACK) Slog.i(TAG, "removeTask: removing taskId=" + mTaskId); |
| EventLog.writeEvent(EventLogTags.WM_TASK_REMOVED, mTaskId, "removeTask"); |
| mDeferRemoval = false; |
| mStack.removeTask(this); |
| mService.mTaskIdToTask.delete(mTaskId); |
| } |
| |
| void moveTaskToStack(TaskStack stack, boolean toTop) { |
| if (stack == mStack) { |
| return; |
| } |
| if (DEBUG_STACK) Slog.i(TAG, "moveTaskToStack: removing taskId=" + mTaskId |
| + " from stack=" + mStack); |
| EventLog.writeEvent(EventLogTags.WM_TASK_REMOVED, mTaskId, "moveTask"); |
| if (mStack != null) { |
| mStack.removeTask(this); |
| } |
| stack.addTask(this, toTop); |
| } |
| |
| boolean removeAppToken(AppWindowToken wtoken) { |
| boolean removed = mAppTokens.remove(wtoken); |
| if (mAppTokens.size() == 0) { |
| EventLog.writeEvent(EventLogTags.WM_TASK_REMOVED, mTaskId, |
| "removeAppToken: last token"); |
| if (mDeferRemoval) { |
| removeLocked(); |
| } |
| } |
| wtoken.mTask = null; |
| /* Leave mTaskId for now, it might be useful for debug |
| wtoken.mTaskId = -1; |
| */ |
| return removed; |
| } |
| |
| void setSendingToBottom(boolean toBottom) { |
| for (int appTokenNdx = 0; appTokenNdx < mAppTokens.size(); appTokenNdx++) { |
| mAppTokens.get(appTokenNdx).sendingToBottom = toBottom; |
| } |
| } |
| |
| boolean showForAllUsers() { |
| final int tokensCount = mAppTokens.size(); |
| return (tokensCount != 0) && mAppTokens.get(tokensCount - 1).showForAllUsers; |
| } |
| |
| @Override |
| public String toString() { |
| return "{taskId=" + mTaskId + " appTokens=" + mAppTokens + " mdr=" + mDeferRemoval + "}"; |
| } |
| } |