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/*
* Copyright (C) 2015 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.tv.dialog;
import android.app.Activity;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.Context;
import android.os.Bundle;
import android.view.KeyEvent;
import com.android.tv.MainActivity;
import com.android.tv.TvApplication;
import com.android.tv.analytics.HasTrackerLabel;
import com.android.tv.analytics.Tracker;
/**
* Provides the safe dismiss feature regardless of the DialogFragment's life cycle.
*/
public abstract class SafeDismissDialogFragment extends DialogFragment
implements HasTrackerLabel {
private MainActivity mActivity;
private boolean mAttached = false;
private boolean mDismissPending = false;
private Tracker mTracker;
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
return new TvDialog(getActivity(), getTheme());
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
mAttached = true;
if (activity instanceof MainActivity) {
mActivity = (MainActivity) activity;
}
mTracker = TvApplication.getSingletons(activity).getTracker();
if (mDismissPending) {
mDismissPending = false;
dismiss();
}
}
@Override
public void onResume() {
super.onResume();
mTracker.sendScreenView(getTrackerLabel());
}
@Override
public void onDestroy() {
if (mActivity != null) {
mActivity.getOverlayManager().onDialogDestroyed();
}
super.onDestroy();
}
@Override
public void onDetach() {
super.onDetach();
mAttached = false;
mTracker = null;
}
/**
* Dismiss safely regardless of the DialogFragment's life cycle.
*/
@Override
public void dismiss() {
if (!mAttached) {
// dismiss() before getFragmentManager() is set cause NPE in dismissInternal().
// FragmentManager is set when a fragment is used in a transaction,
// so wait here until we can dismiss safely.
mDismissPending = true;
} else {
super.dismiss();
}
}
protected class TvDialog extends Dialog {
public TvDialog(Context context, int theme) {
super(context, theme);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
// When a dialog is showing, key events are handled by the dialog instead of
// MainActivity. Therefore, unless a key is a global key, it should be handled here.
if (mAttached && keyCode == KeyEvent.KEYCODE_SEARCH && mActivity != null) {
mActivity.showSearchActivity();
return true;
}
return super.onKeyUp(keyCode, event);
}
}
}
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