/*
* 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.systemui.recents;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.FragmentManager;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Rect;
import android.os.Bundle;
import android.util.Pair;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import com.android.systemui.R;
import com.android.systemui.recents.misc.SystemServicesProxy;
import com.android.systemui.recents.model.RecentsTaskLoader;
import com.android.systemui.recents.model.Task;
import com.android.systemui.recents.RecentsActivity;
import com.android.systemui.recents.views.RecentsView;
import java.util.ArrayList;
/**
* A helper for the dialogs that show when task debugging is on.
*/
public class RecentsResizeTaskDialog extends DialogFragment {
static final String TAG = "RecentsResizeTaskDialog";
// The various window arrangements we can handle.
private static final int PLACE_LEFT = 1;
private static final int PLACE_RIGHT = 2;
private static final int PLACE_TOP = 3;
private static final int PLACE_BOTTOM = 4;
private static final int PLACE_TOP_LEFT = 5;
private static final int PLACE_TOP_RIGHT = 6;
private static final int PLACE_BOTTOM_LEFT = 7;
private static final int PLACE_BOTTOM_RIGHT = 8;
private static final int PLACE_FULL = 9;
// The button resource ID combined with the arrangement command.
private static final int[][] BUTTON_DEFINITIONS =
{{R.id.place_left, PLACE_LEFT},
{R.id.place_right, PLACE_RIGHT},
{R.id.place_top, PLACE_TOP},
{R.id.place_bottom, PLACE_BOTTOM},
{R.id.place_top_left, PLACE_TOP_LEFT},
{R.id.place_top_right, PLACE_TOP_RIGHT},
{R.id.place_bottom_left, PLACE_BOTTOM_LEFT},
{R.id.place_bottom_right, PLACE_BOTTOM_RIGHT},
{R.id.place_full, PLACE_FULL}};
// The task we want to resize.
private FragmentManager mFragmentManager;
private View mResizeTaskDialogContent;
private RecentsActivity mRecentsActivity;
private RecentsView mRecentsView;
private SystemServicesProxy mSsp;
private Rect[] mBounds = {new Rect(), new Rect(), new Rect(), new Rect()};
private Task[] mTasks = {null, null, null, null};
public RecentsResizeTaskDialog(FragmentManager mgr, RecentsActivity activity) {
mFragmentManager = mgr;
mRecentsActivity = activity;
mSsp = RecentsTaskLoader.getInstance().getSystemServicesProxy();
}
/** Shows the resize-task dialog. */
void showResizeTaskDialog(Task mainTask, RecentsView rv) {
mTasks[0] = mainTask;
mRecentsView = rv;
show(mFragmentManager, TAG);
}
/** Creates a new resize-task dialog. */
private void createResizeTaskDialog(final Context context, LayoutInflater inflater,
AlertDialog.Builder builder) {
builder.setTitle(R.string.recents_caption_resize);
mResizeTaskDialogContent =
inflater.inflate(R.layout.recents_task_resize_dialog, null, false);
for (int i = 0; i < BUTTON_DEFINITIONS.length; i++) {
Button b = (Button)mResizeTaskDialogContent.findViewById(BUTTON_DEFINITIONS[i][0]);
if (b != null) {
final int action = BUTTON_DEFINITIONS[i][1];
b.setOnClickListener(
new View.OnClickListener() {
public void onClick(View v) {
placeTasks(action);
}
});
}
}
builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dismiss();
}
});
builder.setView(mResizeTaskDialogContent);
}
/** Helper function to place window(s) on the display according to an arrangement request. */
private void placeTasks(int arrangement) {
Rect rect = mSsp.getWindowRect();
for (int i = 0; i < mBounds.length; ++i) {
mBounds[i].set(rect);
if (i != 0) {
mTasks[i] = null;
}
}
int additionalTasks = 0;
switch (arrangement) {
case PLACE_LEFT:
mBounds[0].right = mBounds[0].centerX();
mBounds[1].left = mBounds[0].right;
additionalTasks = 1;
break;
case PLACE_RIGHT:
mBounds[1].right = mBounds[1].centerX();
mBounds[0].left = mBounds[1].right;
additionalTasks = 1;
break;
case PLACE_TOP:
mBounds[0].bottom = mBounds[0].centerY();
mBounds[1].top = mBounds[0].bottom;
additionalTasks = 1;
break;
case PLACE_BOTTOM:
mBounds[1].bottom = mBounds[1].centerY();
mBounds[0].top = mBounds[1].bottom;
additionalTasks = 1;
break;
case PLACE_TOP_LEFT: // TL, TR, BL, BR
mBounds[0].right = mBounds[0].centerX();
mBounds[0].bottom = mBounds[0].centerY();
mBounds[1].left = mBounds[0].right;
mBounds[1].bottom = mBounds[0].bottom;
mBounds[2].right = mBounds[0].right;
mBounds[2].top = mBounds[0].bottom;
mBounds[3].left = mBounds[0].right;
mBounds[3].top = mBounds[0].bottom;
additionalTasks = 3;
break;
case PLACE_TOP_RIGHT: // TR, TL, BR, BL
mBounds[0].left = mBounds[0].centerX();
mBounds[0].bottom = mBounds[0].centerY();
mBounds[1].right = mBounds[0].left;
mBounds[1].bottom = mBounds[0].bottom;
mBounds[2].left = mBounds[0].left;
mBounds[2].top = mBounds[0].bottom;
mBounds[3].right = mBounds[0].left;
mBounds[3].top = mBounds[0].bottom;
additionalTasks = 3;
break;
case PLACE_BOTTOM_LEFT: // BL, BR, TL, TR
mBounds[0].right = mBounds[0].centerX();
mBounds[0].top = mBounds[0].centerY();
mBounds[1].left = mBounds[0].right;
mBounds[1].top = mBounds[0].top;
mBounds[2].right = mBounds[0].right;
mBounds[2].bottom = mBounds[0].top;
mBounds[3].left = mBounds[0].right;
mBounds[3].bottom = mBounds[0].top;
additionalTasks = 3;
break;
case PLACE_BOTTOM_RIGHT: // BR, BL, TR, TL
mBounds[0].left = mBounds[0].centerX();
mBounds[0].top = mBounds[0].centerY();
mBounds[1].right = mBounds[0].left;
mBounds[1].top = mBounds[0].top;
mBounds[2].left = mBounds[0].left;
mBounds[2].bottom = mBounds[0].top;
mBounds[3].right = mBounds[0].left;
mBounds[3].bottom = mBounds[0].top;
additionalTasks = 3;
break;
case PLACE_FULL:
// Nothing to change.
break;
}
// Get the other tasks.
for (int i = 1; i <= additionalTasks && mTasks[i - 1] != null; ++i) {
mTasks[i] = mRecentsView.getNextTaskOrTopTask(mTasks[i - 1]);
// Do stop if we circled back to the first item.
if (mTasks[i] == mTasks[0]) {
mTasks[i] = null;
}
}
// Get rid of the dialog.
dismiss();
mRecentsActivity.dismissRecentsToHomeWithoutTransitionAnimation();
// Resize all tasks beginning from the "oldest" one.
for (int i = additionalTasks; i >= 0; --i) {
if (mTasks[i] != null) {
mSsp.resizeTask(mTasks[i].key.id, mBounds[i]);
}
}
// Show tasks as they might not be currently visible - beginning with the oldest so that
// the focus ends on the selected one.
for (int i = additionalTasks; i >= 0; --i) {
if (mTasks[i] != null) {
mRecentsView.launchTask(mTasks[i]);
}
}
}
@Override
public Dialog onCreateDialog(Bundle args) {
final Context context = this.getActivity();
LayoutInflater inflater = getActivity().getLayoutInflater();
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
createResizeTaskDialog(context, inflater, builder);
return builder.create();
}
}