/*
* Copyright (c) 2013, Psiphon Inc.
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package ca.psiphon.ploggy;
import java.io.File;
import java.util.Date;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.v4.app.Fragment;
import android.text.InputFilter;
import android.view.ContextMenu;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
/**
* Re-usable user interface fragment which implements composing and sending a new message.
*/
public class FragmentComposeMessage extends Fragment implements View.OnClickListener, TextView.OnEditorActionListener {
private static final String LOG_TAG = "Compose Message";
// TODO: support multiple attachments
private ImageButton mSetPictureButton;
private ImageView mPictureThumbnail;
private String mPictureMimeType;
private String mPicturePath;
private EditText mContentEdit;
private ImageButton mSendButton;
private static final int REQUEST_CODE_SELECT_IMAGE = 1;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.compose_message, container, false);
mSetPictureButton = (ImageButton)view.findViewById(R.id.compose_message_set_picture_button);
mPictureThumbnail = (ImageView)view.findViewById(R.id.compose_message_picture_thumbnail);
mContentEdit = (EditText)view.findViewById(R.id.compose_message_content_edit);
mSendButton = (ImageButton)view.findViewById(R.id.compose_message_send_button);
mSetPictureButton.setOnClickListener(this);
mPictureThumbnail.setVisibility(View.GONE);
mPictureThumbnail.setOnClickListener(this);
registerForContextMenu(mPictureThumbnail);
InputFilter[] filters = new InputFilter[1];
filters[0] = new InputFilter.LengthFilter(Protocol.MAX_MESSAGE_LENGTH);
mContentEdit.setFilters(filters);
mContentEdit.setOnEditorActionListener(this);
mSendButton.setOnClickListener(this);
return view;
}
@Override
public void onClick(View view) {
if (view.equals(mSendButton)) {
addNewMessage();
} else if (view.equals(mSetPictureButton) || view.equals(mPictureThumbnail)) {
selectPicture();
}
}
@Override
public boolean onEditorAction(TextView textView, int actionId, KeyEvent event) {
if (textView.equals(mContentEdit) &&
actionId == EditorInfo.IME_ACTION_SEND) {
addNewMessage();
return true;
}
return false;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode == REQUEST_CODE_SELECT_IMAGE) {
if (data != null && data.getData() != null) {
setPicture(data.getData());
}
}
super.onActivityResult(requestCode, resultCode, data);
}
@Override
public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, view, menuInfo);
if (view.equals(mPictureThumbnail)) {
getActivity().getMenuInflater().inflate(R.menu.compose_message_picture_context, menu);
}
}
@Override
public boolean onContextItemSelected(MenuItem item) {
if (item.getItemId() == R.id.action_compose_message_remove_picture) {
resetPicture();
return true;
}
return super.onContextItemSelected(item);
}
private void addNewMessage() {
try {
String messageContent = mContentEdit.getText().toString();
if (mPicturePath != null || messageContent.length() > 0) {
// TODO: Use AsyncTask? Could be slow as it copies/scales the picture.
Resources.MessageWithAttachments message = Resources.createMessageWithAttachment(
new Date(),
messageContent,
Data.LocalResource.Type.PICTURE,
mPictureMimeType,
mPicturePath);
Data.getInstance().addSelfStatusMessage(message.mMessage, message.mLocalResources);
mContentEdit.getEditableText().clear();
resetPicture();
Utils.hideKeyboard(getActivity());
}
} catch (Utils.ApplicationError e) {
Log.addEntry(LOG_TAG, "failed to update self message");
}
}
private void selectPicture() {
Intent intent;
if (Build.VERSION.SDK_INT < 19) {
intent = new Intent(Intent.ACTION_GET_CONTENT);
} else {
// TODO: properly support the new Storage Access Framework invoked for
// Intent.ACTION_GET_CONTENT on KitKat:
// https://developer.android.com/guide/topics/providers/document-provider.html
// This includes getting results from cloud providers such as
// Drive -- which are only available as streams, not files.
// For now, forcing the equivilent of pre-KitKat gallery selection...
intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
}
intent.setType("image/*");
// Note: assumes nested fragment
getParentFragment().startActivityForResult(
Intent.createChooser(
intent,
getText(R.string.prompt_compose_message_select_picture)),
REQUEST_CODE_SELECT_IMAGE);
}
private void resetPicture() {
mSetPictureButton.setVisibility(View.VISIBLE);
mPictureThumbnail.setVisibility(View.GONE);
mPictureMimeType = null;
mPicturePath = null;
}
private void setPicture(Uri pictureUri) {
// Try to use the MediaStore for gallery selections; otherwise, treat
// the URI as a filesystem path.
String path = null;
String mimeType = null;
Cursor cursor = null;
try {
String[] projection = {MediaStore.Images.Media.DATA, MediaStore.Images.Media.MIME_TYPE};
cursor = getActivity().getContentResolver().query(pictureUri, projection, null, null, null);
if (cursor != null) {
int dataColumnIndex = cursor.getColumnIndex(MediaStore.Images.Media.DATA);
int mimeTypeColumnIndex = cursor.getColumnIndex(MediaStore.Images.Media.MIME_TYPE);
if (dataColumnIndex != -1 && mimeTypeColumnIndex != -1) {
cursor.moveToFirst();
path = cursor.getString(dataColumnIndex);
mimeType = cursor.getString(mimeTypeColumnIndex);
}
}
} finally {
if (cursor != null) {
cursor.close();
}
}
if (mimeType == null) {
// TODO: vs. MimeTypeMap.getMimeTypeFromExtension?
mimeType = getActivity().getContentResolver().getType(pictureUri);
if (mimeType == null) {
mimeType = "application/octet-stream";
}
}
// For non-MediaStore cases
if (path == null) {
path = pictureUri.getPath();
}
// Abort when no path
if (path == null) {
return;
}
// Show a thumbnail; also, hide the add picture button (user can change picture by touching thumbnail instead).
mSetPictureButton.setVisibility(View.GONE);
mPictureThumbnail.setVisibility(View.VISIBLE);
if (Pictures.loadThumbnail(getActivity(), new File(path), mPictureThumbnail)) {
// These fields hold the picture values used when the message is sent
mPicturePath = path;
mPictureMimeType = mimeType;
} else {
mPicturePath = null;
mPictureMimeType = null;
}
}
}