/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.model;
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import android.util.Log;
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import com.android.launcher3.AllAppsList;
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import com.android.launcher3.LauncherAppState;
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import com.android.launcher3.LauncherModel;
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import com.android.launcher3.LauncherModel.ModelUpdateTask;
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import com.android.launcher3.LauncherModel.CallbackTask;
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import com.android.launcher3.LauncherModel.Callbacks;
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import com.android.launcher3.WorkspaceItemInfo;
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import com.android.launcher3.util.ComponentKey;
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import com.android.launcher3.util.ItemInfoMatcher;
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import com.android.launcher3.widget.WidgetListRowEntry;
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import com.android.launcher3.LauncherAppState;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.concurrent.Executor;
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/**
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* Extension of {@link ModelUpdateTask} with some utility methods
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*/
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public abstract class BaseModelUpdateTask implements ModelUpdateTask {
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private static final boolean DEBUG_TASKS = false;
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private static final String TAG = "BaseModelUpdateTask";
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private LauncherAppState mApp;
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private LauncherModel mModel;
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private BgDataModel mDataModel;
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private AllAppsList mAllAppsList;
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private Executor mUiExecutor;
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public void init(LauncherAppState app, LauncherModel model,
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BgDataModel dataModel, AllAppsList allAppsList, Executor uiExecutor) {
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mApp = app;
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mModel = model;
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mDataModel = dataModel;
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mAllAppsList = allAppsList;
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mUiExecutor = uiExecutor;
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}
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@Override
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public final void run() {
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if (!mModel.isModelLoaded()) {
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if (DEBUG_TASKS) {
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Log.d(TAG, "Ignoring model task since loader is pending=" + this);
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}
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// Loader has not yet run.
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if(!LauncherAppState.getInstanceNoCreate().isDisableAllApps()){
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return;
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}
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}
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execute(mApp, mDataModel, mAllAppsList);
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}
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/**
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* Execute the actual task. Called on the worker thread.
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*/
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public abstract void execute(
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LauncherAppState app, BgDataModel dataModel, AllAppsList apps);
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/**
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* Schedules a {@param task} to be executed on the current callbacks.
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*/
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public final void scheduleCallbackTask(final CallbackTask task) {
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final Callbacks callbacks = mModel.getCallback();
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mUiExecutor.execute(() -> {
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Callbacks cb = mModel.getCallback();
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if (callbacks == cb && cb != null) {
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task.execute(callbacks);
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}
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});
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}
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public ModelWriter getModelWriter() {
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// Updates from model task, do not deal with icon position in hotseat. Also no need to
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// verify changes as the ModelTasks always push the changes to callbacks
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return mModel.getWriter(false /* hasVerticalHotseat */, false /* verifyChanges */);
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}
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public void bindUpdatedWorkspaceItems(final ArrayList<WorkspaceItemInfo> updatedShortcuts) {
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if (!updatedShortcuts.isEmpty()) {
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scheduleCallbackTask(new CallbackTask() {
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@Override
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public void execute(Callbacks callbacks) {
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callbacks.bindWorkspaceItemsChanged(updatedShortcuts);
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}
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});
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}
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}
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public void bindDeepShortcuts(BgDataModel dataModel) {
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final HashMap<ComponentKey, Integer> shortcutMapCopy =
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new HashMap<>(dataModel.deepShortcutMap);
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scheduleCallbackTask(callbacks -> callbacks.bindDeepShortcutMap(shortcutMapCopy));
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}
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public void bindUpdatedWidgets(BgDataModel dataModel) {
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final ArrayList<WidgetListRowEntry> widgets =
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dataModel.widgetsModel.getWidgetsList(mApp.getContext());
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scheduleCallbackTask(new CallbackTask() {
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@Override
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public void execute(Callbacks callbacks) {
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callbacks.bindAllWidgets(widgets);
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}
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});
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}
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public void deleteAndBindComponentsRemoved(final ItemInfoMatcher matcher) {
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getModelWriter().deleteItemsFromDatabase(matcher);
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// Call the components-removed callback
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scheduleCallbackTask(new CallbackTask() {
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@Override
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public void execute(Callbacks callbacks) {
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callbacks.bindWorkspaceComponentsRemoved(matcher);
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}
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});
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}
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}
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