mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
276 lines
10 KiB
Java
276 lines
10 KiB
Java
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import org.mozilla.gecko.util.ActivityResultHandler;
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import org.mozilla.gecko.util.ThreadUtils;
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import android.app.Activity;
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import android.content.ContentResolver;
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import android.content.Context;
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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.os.Bundle;
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import android.os.Environment;
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import android.os.Process;
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import android.provider.MediaStore;
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import android.provider.OpenableColumns;
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import android.support.v4.app.FragmentActivity;
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import android.support.v4.app.LoaderManager;
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import android.support.v4.app.LoaderManager.LoaderCallbacks;
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import android.support.v4.content.CursorLoader;
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import android.support.v4.content.Loader;
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import android.text.TextUtils;
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import android.text.format.Time;
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import android.util.Log;
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class FilePickerResultHandler implements ActivityResultHandler {
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private static final String LOGTAG = "GeckoFilePickerResultHandler";
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private static final String UPLOADS_DIR = "uploads";
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private final FilePicker.ResultHandler handler;
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private final int tabId;
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private final File cacheDir;
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// this code is really hacky and doesn't belong anywhere so I'm putting it here for now
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// until I can come up with a better solution.
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private String mImageName = "";
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/* Use this constructor to asynchronously listen for results */
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public FilePickerResultHandler(final FilePicker.ResultHandler handler, final Context context, final int tabId) {
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this.tabId = tabId;
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this.cacheDir = new File(context.getCacheDir(), UPLOADS_DIR);
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this.handler = handler;
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}
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void sendResult(String res) {
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if (handler != null) {
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handler.gotFile(res);
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}
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}
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@Override
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public void onActivityResult(int resultCode, Intent intent) {
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if (resultCode != Activity.RESULT_OK) {
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sendResult("");
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return;
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}
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// Camera results won't return an Intent. Use the file name we passed to the original intent.
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if (intent == null) {
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if (mImageName != null) {
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File file = new File(Environment.getExternalStorageDirectory(), mImageName);
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sendResult(file.getAbsolutePath());
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} else {
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sendResult("");
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}
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return;
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}
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Uri uri = intent.getData();
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if (uri == null) {
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sendResult("");
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return;
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}
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// Some file pickers may return a file uri
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if ("file".equals(uri.getScheme())) {
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String path = uri.getPath();
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sendResult(path == null ? "" : path);
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return;
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}
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final FragmentActivity fa = (FragmentActivity) GeckoAppShell.getGeckoInterface().getActivity();
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final LoaderManager lm = fa.getSupportLoaderManager();
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// Finally, Video pickers and some file pickers may return a content provider.
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Cursor cursor = null;
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try {
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// Try a query to make sure the expected columns exist
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final ContentResolver cr = fa.getContentResolver();
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cursor = cr.query(uri, new String[] { MediaStore.Video.Media.DATA }, null, null, null);
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int index = cursor.getColumnIndex(MediaStore.Video.Media.DATA);
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if (index >= 0) {
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lm.initLoader(intent.hashCode(), null, new VideoLoaderCallbacks(uri));
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return;
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}
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} catch(Exception ex) {
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// We'll try a different loader below
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} finally {
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if (cursor != null) {
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cursor.close();
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}
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}
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lm.initLoader(uri.hashCode(), null, new FileLoaderCallbacks(uri, cacheDir, tabId));
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}
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public String generateImageName() {
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Time now = new Time();
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now.setToNow();
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mImageName = now.format("%Y-%m-%d %H.%M.%S") + ".jpg";
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return mImageName;
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}
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private class VideoLoaderCallbacks implements LoaderCallbacks<Cursor> {
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final private Uri uri;
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public VideoLoaderCallbacks(Uri uri) {
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this.uri = uri;
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}
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@Override
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public Loader<Cursor> onCreateLoader(int id, Bundle args) {
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final FragmentActivity fa = (FragmentActivity) GeckoAppShell.getGeckoInterface().getActivity();
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return new CursorLoader(fa,
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uri,
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new String[] { MediaStore.Video.Media.DATA },
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null, // selection
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null, // selectionArgs
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null); // sortOrder
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}
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@Override
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public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
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if (cursor.moveToFirst()) {
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String res = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA));
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// Some pickers (the KitKat Documents one for instance) won't return a temporary file here.
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// Fall back to the normal FileLoader if we didn't find anything.
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if (TextUtils.isEmpty(res)) {
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tryFileLoaderCallback();
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return;
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}
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sendResult(res);
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} else {
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tryFileLoaderCallback();
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}
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}
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private void tryFileLoaderCallback() {
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final FragmentActivity fa = (FragmentActivity) GeckoAppShell.getGeckoInterface().getActivity();
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final LoaderManager lm = fa.getSupportLoaderManager();
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lm.initLoader(uri.hashCode(), null, new FileLoaderCallbacks(uri, cacheDir, tabId));
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}
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@Override
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public void onLoaderReset(Loader<Cursor> loader) { }
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}
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/**
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* This class's only dependency on FilePickerResultHandler is sendResult.
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*/
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private class FileLoaderCallbacks implements LoaderCallbacks<Cursor>,
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Tabs.OnTabsChangedListener {
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private final Uri uri;
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private final File cacheDir;
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private final int tabId;
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/* inner-access */ String tempFile;
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public FileLoaderCallbacks(Uri uri, File cacheDir, int tabId) {
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this.uri = uri;
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this.cacheDir = cacheDir;
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this.tabId = tabId;
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}
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@Override
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public Loader<Cursor> onCreateLoader(int id, Bundle args) {
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final FragmentActivity fa = (FragmentActivity) GeckoAppShell.getGeckoInterface().getActivity();
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return new CursorLoader(fa,
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uri,
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new String[] { OpenableColumns.DISPLAY_NAME },
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null, // selection
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null, // selectionArgs
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null); // sortOrder
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}
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@Override
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public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
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if (cursor.moveToFirst()) {
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String name = cursor.getString(0);
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// tmp filenames must be at least 3 characters long. Add a prefix to make sure that happens
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String fileName = "tmp_" + Process.myPid() + "-";
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String fileExt;
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int period;
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final FragmentActivity fa = (FragmentActivity) GeckoAppShell.getGeckoInterface().getActivity();
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final ContentResolver cr = fa.getContentResolver();
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// Generate an extension if we don't already have one
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if (name == null || (period = name.lastIndexOf('.')) == -1) {
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String mimeType = cr.getType(uri);
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fileExt = "." + GeckoAppShell.getExtensionFromMimeType(mimeType);
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} else {
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fileExt = name.substring(period);
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fileName += name.substring(0, period);
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}
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// Now write the data to the temp file
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try {
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cacheDir.mkdir();
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File file = File.createTempFile(fileName, fileExt, cacheDir);
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FileOutputStream fos = new FileOutputStream(file);
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InputStream is = cr.openInputStream(uri);
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byte[] buf = new byte[4096];
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int len = is.read(buf);
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while (len != -1) {
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fos.write(buf, 0, len);
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len = is.read(buf);
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}
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fos.close();
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tempFile = file.getAbsolutePath();
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sendResult((tempFile == null) ? "" : tempFile);
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if (tabId > -1 && !TextUtils.isEmpty(tempFile)) {
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Tabs.registerOnTabsChangedListener(this);
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}
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} catch(IOException ex) {
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Log.i(LOGTAG, "Error writing file", ex);
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}
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} else {
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sendResult("");
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}
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}
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@Override
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public void onLoaderReset(Loader<Cursor> loader) { }
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/*Tabs.OnTabsChangedListener*/
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// This cleans up our temp file. If it doesn't run, we just hope that Android
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// will eventually does the cleanup for us.
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@Override
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public void onTabChanged(Tab tab, Tabs.TabEvents msg, Object data) {
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if (tab.getId() != tabId) {
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return;
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}
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if (msg == Tabs.TabEvents.LOCATION_CHANGE ||
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msg == Tabs.TabEvents.CLOSED) {
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ThreadUtils.postToBackgroundThread(new Runnable() {
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@Override
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public void run() {
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File f = new File(tempFile);
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f.delete();
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}
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});
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// Tabs' listener array is safe to modify during use: its
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// iteration pattern is based on snapshots.
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Tabs.unregisterOnTabsChangedListener(this);
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}
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}
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}
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}
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