/*
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* Copyright (C) 2010 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.mozillaonline.providers.downloads;
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import java.util.LinkedList;
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import java.util.Queue;
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import android.app.Activity;
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import android.app.AlertDialog;
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import android.app.Dialog;
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import android.content.ContentValues;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.database.Cursor;
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import android.net.Uri;
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import android.text.format.Formatter;
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import android.util.Log;
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import com.mozillaonline.downloadprovider.R;
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/**
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* Activity to show dialogs to the user when a download exceeds a limit on download sizes for
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* mobile networks. This activity gets started by the background download service when a download's
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* size is discovered to be exceeded one of these thresholds.
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*/
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public class SizeLimitActivity extends Activity
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implements DialogInterface.OnCancelListener, DialogInterface.OnClickListener {
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private Dialog mDialog;
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private Queue<Intent> mDownloadsToShow = new LinkedList<Intent>();
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private Uri mCurrentUri;
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private Intent mCurrentIntent;
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@Override
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protected void onNewIntent(Intent intent) {
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super.onNewIntent(intent);
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setIntent(intent);
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}
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@Override
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protected void onResume() {
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super.onResume();
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Intent intent = getIntent();
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if (intent != null) {
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mDownloadsToShow.add(intent);
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setIntent(null);
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showNextDialog();
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}
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if (mDialog != null && !mDialog.isShowing()) {
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mDialog.show();
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}
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}
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private void showNextDialog() {
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if (mDialog != null) {
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return;
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}
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if (mDownloadsToShow.isEmpty()) {
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finish();
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return;
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}
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mCurrentIntent = mDownloadsToShow.poll();
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mCurrentUri = mCurrentIntent.getData();
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Cursor cursor = getContentResolver().query(mCurrentUri, null, null, null, null);
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try {
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if (!cursor.moveToFirst()) {
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Log.e(Constants.TAG, "Empty cursor for URI " + mCurrentUri);
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dialogClosed();
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return;
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}
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showDialog(cursor);
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} finally {
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cursor.close();
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}
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}
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private void showDialog(Cursor cursor) {
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int size = cursor.getInt(cursor.getColumnIndexOrThrow(Downloads.COLUMN_TOTAL_BYTES));
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String sizeString = Formatter.formatFileSize(this, size);
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String queueText = getString(R.string.button_queue_for_wifi);
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boolean isWifiRequired =
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mCurrentIntent.getExtras().getBoolean(DownloadInfo.EXTRA_IS_WIFI_REQUIRED);
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AlertDialog.Builder builder = new AlertDialog.Builder(this);
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if (isWifiRequired) {
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builder.setTitle(R.string.wifi_required_title)
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.setMessage(getString(R.string.wifi_required_body, sizeString, queueText))
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.setPositiveButton(R.string.button_queue_for_wifi, this)
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.setNegativeButton(R.string.button_cancel_download, this);
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} else {
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builder.setTitle(R.string.wifi_recommended_title)
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.setMessage(getString(R.string.wifi_recommended_body, sizeString, queueText))
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.setPositiveButton(R.string.button_start_now, this)
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.setNegativeButton(R.string.button_queue_for_wifi, this);
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}
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mDialog = builder.setOnCancelListener(this).show();
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}
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@Override
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public void onCancel(DialogInterface dialog) {
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dialogClosed();
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}
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private void dialogClosed() {
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mDialog = null;
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mCurrentUri = null;
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showNextDialog();
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}
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@Override
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public void onClick(DialogInterface dialog, int which) {
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boolean isRequired =
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mCurrentIntent.getExtras().getBoolean(DownloadInfo.EXTRA_IS_WIFI_REQUIRED);
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if (isRequired && which == AlertDialog.BUTTON_NEGATIVE) {
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getContentResolver().delete(mCurrentUri, null, null);
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} else if (!isRequired && which == AlertDialog.BUTTON_POSITIVE) {
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ContentValues values = new ContentValues();
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values.put(Downloads.COLUMN_BYPASS_RECOMMENDED_SIZE_LIMIT, true);
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getContentResolver().update(mCurrentUri, values , null, null);
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}
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dialogClosed();
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}
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}
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