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/*
* Copyright (C) 2020 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.launcher3.model;
import static com.android.launcher3.util.PackageManagerHelper.hasShortcutsPermission;
import android.content.Context;
import android.content.pm.ShortcutInfo;
import androidx.annotation.WorkerThread;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.R;
import com.android.launcher3.shortcuts.ShortcutKey;
import com.android.launcher3.util.ResourceBasedOverride;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.Map;
/**
* Class to extend LauncherModel functionality to provide extra data
*/
public class ModelDelegate implements ResourceBasedOverride {
/**
* Creates and initializes a new instance of the delegate
*/
public static ModelDelegate newInstance(
Context context, LauncherAppState app, AllAppsList appsList, BgDataModel dataModel,
boolean isPrimaryInstance) {
ModelDelegate delegate = Overrides.getObject(
ModelDelegate.class, context, R.string.model_delegate_class);
delegate.mApp = app;
delegate.mAppsList = appsList;
delegate.mDataModel = dataModel;
delegate.mIsPrimaryInstance = isPrimaryInstance;
return delegate;
}
protected LauncherAppState mApp;
protected AllAppsList mAppsList;
protected BgDataModel mDataModel;
protected boolean mIsPrimaryInstance;
public ModelDelegate() { }
/**
* Called periodically to validate and update any data
*/
@WorkerThread
public void validateData() {
if (hasShortcutsPermission(mApp.getContext())
!= mAppsList.hasShortcutHostPermission()) {
mApp.getModel().forceReload();
}
}
/**
* Load delegate items if any in the data model
*/
@WorkerThread
public void loadItems(UserManagerState ums, Map<ShortcutKey, ShortcutInfo> pinnedShortcuts) { }
/**
* Called during loader after workspace loading is complete
*/
@WorkerThread
public void workspaceLoadComplete() { }
/**
* Called at the end of model load task
*/
@WorkerThread
public void modelLoadComplete() { }
/**
* Called when the delegate is no loner needed
*/
@WorkerThread
public void destroy() { }
/**
* Add data to a dumpsys request for Launcher (e.g. for bug reports).
*
* @see com.android.launcher3.Launcher#dump(java.lang.String, java.io.FileDescriptor,
* java.io.PrintWriter, java.lang.String[])
**/
public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { }
}
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