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/*
* Copyright (C) 2016 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.messaging.ui.mediapicker;
import android.Manifest;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.support.v7.app.ActionBar;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import com.android.messaging.Factory;
import com.android.messaging.R;
import com.android.messaging.datamodel.data.MediaPickerData;
import com.android.messaging.datamodel.data.MediaPickerData.MediaPickerDataListener;
import com.android.messaging.datamodel.data.MessagePartData;
import com.android.messaging.util.Assert;
import com.android.messaging.util.OsUtil;
/**
* Chooser which allows the user to select one or more existing audios
*/
class AudioListChooser extends MediaChooser implements
AudioListView.AudioListViewListener, MediaPickerDataListener {
private final AudioListAdapter mAdapter;
private AudioListView mAudioListView;
private View mMissingPermissionView;
private static final String TAG = AudioListChooser.class.getSimpleName();
AudioListChooser(final MediaPicker mediaPicker) {
super(mediaPicker);
mAdapter = new AudioListAdapter(Factory.get().getApplicationContext(), null);
}
@Override
public int getSupportedMediaTypes() {
return MediaPicker.MEDIA_TYPE_AUDIO;
}
@Override
public View destroyView() {
mAudioListView.setAdapter(null);
mAdapter.setHostInterface(null);
// The loader is started only if startMediaPickerDataLoader() is called
if (OsUtil.hasStoragePermission()) {
mBindingRef.getData().destroyLoader(MediaPickerData.GALLERY_AUDIO_LOADER);
}
return super.destroyView();
}
@Override
public int getIconResource() {
return R.drawable.ic_library_music_white_24px;
}
@Override
public int getIconDescriptionResource() {
return R.string.mediapicker_audioChooserDescription;
}
@Override
public boolean canSwipeDown() {
return mAudioListView.canSwipeDown();
}
@Override
public void onItemSelected(final MessagePartData item) {
mMediaPicker.dispatchItemsSelected(item, !mAudioListView.isMultiSelectEnabled());
}
@Override
public void onItemUnselected(final MessagePartData item) {
mMediaPicker.dispatchItemUnselected(item);
}
@Override
public void onConfirmSelection() {
// The user may only confirm if multiselect is enabled.
Assert.isTrue(mAudioListView.isMultiSelectEnabled());
mMediaPicker.dispatchConfirmItemSelection();
}
@Override
public void onUpdate() {
mMediaPicker.invalidateOptionsMenu();
}
@Override
public void onCreateOptionsMenu(final MenuInflater inflater, final Menu menu) {
if (mView != null) {
mAudioListView.onCreateOptionsMenu(inflater, menu);
}
}
@Override
public boolean onOptionsItemSelected(final MenuItem item) {
return (mView != null) ? mAudioListView.onOptionsItemSelected(item) : false;
}
@Override
protected View createView(final ViewGroup container) {
final LayoutInflater inflater = getLayoutInflater();
final View view = inflater.inflate(
R.layout.mediapicker_audio_list_chooser,
container /* root */,
false /* attachToRoot */);
mAudioListView = (AudioListView) view.findViewById(R.id.audio_list_view);
mAdapter.setHostInterface(mAudioListView);
mAudioListView.setAdapter(mAdapter);
mAudioListView.setHostInterface(this);
mAudioListView.setDraftMessageDataModel(mMediaPicker.getDraftMessageDataModel());
if (OsUtil.hasStoragePermission()) {
startMediaPickerDataLoader();
}
mMissingPermissionView = view.findViewById(R.id.missing_permission_view);
updateForPermissionState(OsUtil.hasStoragePermission());
return view;
}
@Override
int getActionBarTitleResId() {
return R.string.mediapicker_audio_list_title;
}
@Override
void updateActionBar(final ActionBar actionBar) {
super.updateActionBar(actionBar);
if (mAudioListView == null) {
return;
}
final int selectionCount = mAudioListView.getSelectionCount();
if (selectionCount > 0 && mAudioListView.isMultiSelectEnabled()) {
actionBar.setTitle(getContext().getResources().getString(
R.string.mediapicker_audio_list_title_selection,
selectionCount));
}
}
@Override
public void onMediaPickerDataUpdated(final MediaPickerData mediaPickerData, final Object data,
final int loaderId) {
mBindingRef.ensureBound(mediaPickerData);
Assert.equals(MediaPickerData.GALLERY_AUDIO_LOADER, loaderId);
Cursor rawCursor = null;
if (data instanceof Cursor) {
rawCursor = (Cursor) data;
}
mAdapter.swapCursor(rawCursor);
}
@Override
public void onResume() {
if (OsUtil.hasStoragePermission()) {
// Work around a bug in MediaStore where cursors querying the Files provider don't get
// updated for changes to Images.Media or Video.Media.
startMediaPickerDataLoader();
updateForPermissionState(true);
} else {
updateForPermissionState(false);
}
}
@Override
protected void setSelected(final boolean selected) {
super.setSelected(selected);
if (selected && !OsUtil.hasStoragePermission()) {
mMediaPicker.requestPermissions(
new String[] { Manifest.permission.READ_EXTERNAL_STORAGE },
MediaPicker.AUDIO_LIBRARY_PERMISSION_REQUEST_CODE);
}
}
private void startMediaPickerDataLoader() {
mBindingRef.getData().startLoader(MediaPickerData.GALLERY_AUDIO_LOADER, mBindingRef, null,
this);
}
@Override
protected void onRequestPermissionsResult(
final int requestCode, final String permissions[], final int[] grantResults) {
if (requestCode == MediaPicker.AUDIO_LIBRARY_PERMISSION_REQUEST_CODE) {
final boolean permissionGranted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
if (permissionGranted) {
startMediaPickerDataLoader();
}
updateForPermissionState(permissionGranted);
}
}
private void updateForPermissionState(final boolean granted) {
// onRequestPermissionsResult can sometimes get called before createView().
if (mAudioListView == null) {
return;
}
mAudioListView.setVisibility(granted ? View.VISIBLE : View.GONE);
mMissingPermissionView.setVisibility(granted ? View.GONE : View.VISIBLE);
}
}
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