Yuito-app-android/app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java

810 lines
31 KiB
Java
Raw Normal View History

2017-01-20 09:09:10 +01:00
/* Copyright 2017 Andrew Dawson
*
* This file is part of Tusky.
*
* Tusky 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.
*
* Tusky 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 Tusky. If not, see
* <http://www.gnu.org/licenses/>. */
package com.keylesspalace.tusky;
import android.Manifest;
import android.app.ProgressDialog;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.MediaMetadataRetriever;
import android.media.ThumbnailUtils;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.os.Parcel;
import android.provider.OpenableColumns;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.design.widget.Snackbar;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.text.Editable;
import android.text.Spannable;
import android.text.Spanned;
import android.text.TextWatcher;
import android.text.style.ForegroundColorSpan;
import android.view.View;
import android.webkit.MimeTypeMap;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class ComposeActivity extends AppCompatActivity {
private static final int STATUS_CHARACTER_LIMIT = 500;
private static final int STATUS_MEDIA_SIZE_LIMIT = 4000000; // 4MB
private static final int MEDIA_PICK_RESULT = 1;
private static final int PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE = 1;
private static final Pattern mentionPattern = Pattern.compile("\\B@[^\\s@]+@?[^\\s@]+");
private String inReplyToId;
private String domain;
private String accessToken;
private EditText textEditor;
private ImageButton mediaPick;
private LinearLayout mediaPreviewBar;
private List<QueuedMedia> mediaQueued;
private CountUpDownLatch waitForMediaLatch;
private boolean showMarkSensitive;
private String statusVisibility; // The current values of the options that will be applied
private boolean statusMarkSensitive; // to the status being composed.
private boolean statusHideText; //
private View contentWarningBar;
private static class QueuedMedia {
public enum Type {
IMAGE,
VIDEO
}
public enum ReadyStage {
DOWNSIZING,
UPLOADING,
}
private Type type;
private ImageView preview;
private Uri uri;
private String id;
private ReadyStage readyStage;
private byte[] content;
public QueuedMedia(Type type, Uri uri, ImageView preview) {
this.type = type;
this.uri = uri;
this.preview = preview;
}
public Type getType() {
return type;
}
public ImageView getPreview() {
return preview;
}
public Uri getUri() {
return uri;
}
public String getId() {
return id;
}
public byte[] getContent() {
return content;
}
public ReadyStage getReadyStage() {
return readyStage;
}
public void setId(String id) {
this.id = id;
}
public void setReadyStage(ReadyStage readyStage) {
this.readyStage = readyStage;
}
public void setContent(byte[] content) {
this.content = content;
}
}
private void doErrorDialog(int descriptionId, int actionId, View.OnClickListener listener) {
Snackbar bar = Snackbar.make(findViewById(R.id.activity_compose), getString(descriptionId),
Snackbar.LENGTH_SHORT);
bar.setAction(actionId, listener);
bar.show();
}
private void displayTransientError(int stringId) {
Snackbar.make(findViewById(R.id.activity_compose), stringId, Snackbar.LENGTH_LONG).show();
}
private static class Interval {
public int start;
public int end;
}
private static void colourMentions(Spannable text, int colour) {
// Strip all existing colour spans.
int n = text.length();
ForegroundColorSpan[] oldSpans = text.getSpans(0, n, ForegroundColorSpan.class);
for (int i = oldSpans.length - 1; i >= 0; i--) {
text.removeSpan(oldSpans[i]);
}
// Match a list of new colour spans.
List<Interval> intervals = new ArrayList<>();
Matcher matcher = mentionPattern.matcher(text);
while (matcher.find()) {
Interval interval = new Interval();
interval.start = matcher.start();
interval.end = matcher.end();
intervals.add(interval);
}
// Make sure intervals don't overlap.
Collections.sort(intervals, new Comparator<Interval>() {
@Override
public int compare(Interval a, Interval b) {
return a.start - b.start;
}
});
for (int i = 0, j = 0; i < intervals.size() - 1; i++, j++) {
if (j != 0) {
Interval a = intervals.get(j - 1);
Interval b = intervals.get(i);
if (a.start <= b.end) {
while (j != 0 && a.start <= b.end) {
a = intervals.get(j - 1);
b = intervals.get(i);
a.end = Math.max(a.end, b.end);
a.start = Math.min(a.start, b.start);
j--;
}
} else {
intervals.set(j, b);
}
} else {
intervals.set(j, intervals.get(i));
}
}
// Finally, set the spans.
for (Interval interval : intervals) {
text.setSpan(new ForegroundColorSpan(colour), interval.start, interval.end,
Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_compose);
Intent intent = getIntent();
String[] mentionedUsernames = null;
if (intent != null) {
inReplyToId = intent.getStringExtra("in_reply_to_id");
mentionedUsernames = intent.getStringArrayExtra("mentioned_usernames");
}
SharedPreferences preferences = getSharedPreferences(
getString(R.string.preferences_file_key), Context.MODE_PRIVATE);
domain = preferences.getString("domain", null);
accessToken = preferences.getString("accessToken", null);
textEditor = (EditText) findViewById(R.id.field_status);
final TextView charactersLeft = (TextView) findViewById(R.id.characters_left);
final int mentionColour = ContextCompat.getColor(this, R.color.compose_mention);
TextWatcher textEditorWatcher = new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
int left = STATUS_CHARACTER_LIMIT - s.length();
charactersLeft.setText(Integer.toString(left));
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
@Override
public void afterTextChanged(Editable editable) {
colourMentions(editable, mentionColour);
}
};
textEditor.addTextChangedListener(textEditorWatcher);
if (mentionedUsernames != null) {
StringBuilder builder = new StringBuilder();
for (String name : mentionedUsernames) {
builder.append('@');
builder.append(name);
builder.append(' ');
}
textEditor.setText(builder);
textEditor.setSelection(textEditor.length());
}
mediaPreviewBar = (LinearLayout) findViewById(R.id.compose_media_preview_bar);
mediaQueued = new ArrayList<>();
waitForMediaLatch = new CountUpDownLatch();
contentWarningBar = findViewById(R.id.compose_content_warning_bar);
final EditText contentWarningEditor = (EditText) findViewById(R.id.field_content_warning);
showContentWarning(false);
final Button sendButton = (Button) findViewById(R.id.button_send);
sendButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Editable editable = textEditor.getText();
if (editable.length() <= STATUS_CHARACTER_LIMIT) {
String spoilerText = "";
if (statusHideText) {
spoilerText = contentWarningEditor.getText().toString();
}
readyStatus(editable.toString(), statusVisibility, statusMarkSensitive,
spoilerText);
} else {
textEditor.setError(getString(R.string.error_compose_character_limit));
}
}
});
mediaPick = (ImageButton) findViewById(R.id.compose_photo_pick);
mediaPick.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
onMediaPick();
}
});
ImageButton options = (ImageButton) findViewById(R.id.compose_options);
options.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ComposeOptionsFragment fragment = ComposeOptionsFragment.newInstance(
statusVisibility, statusMarkSensitive, statusHideText,
showMarkSensitive,
new ComposeOptionsFragment.Listener() {
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {}
@Override
public void onVisibilityChanged(String visibility) {
statusVisibility = visibility;
}
@Override
public void onMarkSensitiveChanged(boolean markSensitive) {
statusMarkSensitive = markSensitive;
}
@Override
public void onContentWarningChanged(boolean hideText) {
showContentWarning(hideText);
}
});
fragment.show(getSupportFragmentManager(), null);
}
});
}
private void sendStatus(String content, String visibility, boolean sensitive,
String spoilerText) {
String endpoint = getString(R.string.endpoint_status);
String url = "https://" + domain + endpoint;
JSONObject parameters = new JSONObject();
try {
parameters.put("status", content);
parameters.put("visibility", visibility);
parameters.put("sensitive", sensitive);
parameters.put("spoiler_text", spoilerText);
if (inReplyToId != null) {
parameters.put("in_reply_to_id", inReplyToId);
}
JSONArray media_ids = new JSONArray();
for (QueuedMedia item : mediaQueued) {
media_ids.put(item.getId());
}
if (media_ids.length() > 0) {
parameters.put("media_ids", media_ids);
}
} catch (JSONException e) {
onSendFailure();
return;
}
JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, url, parameters,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
onSendSuccess();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
onSendFailure();
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<>();
headers.put("Authorization", "Bearer " + accessToken);
return headers;
}
};
VolleySingleton.getInstance(this).addToRequestQueue(request);
}
private void onSendSuccess() {
Toast.makeText(this, getString(R.string.confirmation_send), Toast.LENGTH_SHORT).show();
finish();
}
private void onSendFailure() {
textEditor.setError(getString(R.string.error_sending_status));
}
private void readyStatus(final String content, final String visibility,
final boolean sensitive, final String spoilerText) {
2017-02-07 08:05:50 +01:00
final ProgressDialog dialog = ProgressDialog.show(
this, getString(R.string.dialog_title_finishing_media_upload),
getString(R.string.dialog_message_uploading_media), true, true);
final AsyncTask<Void, Void, Boolean> waitForMediaTask =
new AsyncTask<Void, Void, Boolean>() {
@Override
protected Boolean doInBackground(Void... params) {
try {
waitForMediaLatch.await();
} catch (InterruptedException e) {
return false;
}
return true;
}
@Override
protected void onPostExecute(Boolean successful) {
super.onPostExecute(successful);
dialog.dismiss();
if (successful) {
sendStatus(content, visibility, sensitive, spoilerText);
} else {
onReadyFailure(content, visibility, sensitive, spoilerText);
}
}
@Override
protected void onCancelled() {
removeAllMediaFromQueue();
super.onCancelled();
}
};
dialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
/* Generating an interrupt by passing true here is important because an interrupt
* exception is the only thing that will kick the latch out of its waiting loop
* early. */
waitForMediaTask.cancel(true);
}
});
waitForMediaTask.execute();
}
private void onReadyFailure(final String content, final String visibility,
final boolean sensitive, final String spoilerText) {
doErrorDialog(R.string.error_media_upload_sending, R.string.action_retry,
new View.OnClickListener() {
@Override
public void onClick(View v) {
readyStatus(content, visibility, sensitive, spoilerText);
}
});
}
private void onMediaPick() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN &&
ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this,
new String[] { Manifest.permission.READ_EXTERNAL_STORAGE },
PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE);
} else {
initiateMediaPicking();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[],
@NonNull int[] grantResults) {
switch (requestCode) {
case PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE: {
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
initiateMediaPicking();
} else {
doErrorDialog(R.string.error_media_upload_permission, R.string.action_retry,
new View.OnClickListener() {
@Override
public void onClick(View v) {
onMediaPick();
}
});
}
break;
}
}
}
private void initiateMediaPicking() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
intent.setType("image/* video/*");
} else {
String[] mimeTypes = new String[] { "image/*", "video/*" };
intent.setType("*/*");
intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);
}
startActivityForResult(intent, MEDIA_PICK_RESULT);
}
private void enableMediaPicking() {
mediaPick.setEnabled(true);
}
private void disableMediaPicking() {
mediaPick.setEnabled(false);
}
private void addMediaToQueue(QueuedMedia.Type type, Bitmap preview, Uri uri, long mediaSize) {
final QueuedMedia item = new QueuedMedia(type, uri, new ImageView(this));
ImageView view = item.getPreview();
Resources resources = getResources();
int side = resources.getDimensionPixelSize(R.dimen.compose_media_preview_side);
int margin = resources.getDimensionPixelSize(R.dimen.compose_media_preview_margin);
int marginBottom = resources.getDimensionPixelSize(
R.dimen.compose_media_preview_margin_bottom);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(side, side);
layoutParams.setMargins(margin, margin, margin, marginBottom);
view.setLayoutParams(layoutParams);
view.setImageBitmap(preview);
view.setScaleType(ImageView.ScaleType.CENTER_CROP);
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
removeMediaFromQueue(item);
}
});
mediaPreviewBar.addView(view);
mediaQueued.add(item);
int queuedCount = mediaQueued.size();
if (queuedCount == 1) {
/* The media preview bar is actually not inset in the EditText, it just overlays it and
* is aligned to the bottom. But, so that text doesn't get hidden under it, extra
* padding is added at the bottom of the EditText. */
int totalHeight = side + margin + marginBottom;
textEditor.setPadding(textEditor.getPaddingLeft(), textEditor.getPaddingTop(),
textEditor.getPaddingRight(), totalHeight);
// If there's one video in the queue it is full, so disable the button to queue more.
if (item.getType() == QueuedMedia.Type.VIDEO) {
disableMediaPicking();
}
} else if (queuedCount >= Status.MAX_MEDIA_ATTACHMENTS) {
// Limit the total media attachments, also.
disableMediaPicking();
}
if (queuedCount >= 1) {
showMarkSensitive(true);
}
waitForMediaLatch.countUp();
if (mediaSize > STATUS_MEDIA_SIZE_LIMIT && type == QueuedMedia.Type.IMAGE) {
downsizeMedia(item);
} else {
uploadMedia(item);
}
}
private void removeMediaFromQueue(QueuedMedia item) {
mediaPreviewBar.removeView(item.getPreview());
mediaQueued.remove(item);
if (mediaQueued.size() == 0) {
showMarkSensitive(false);
/* If there are no image previews to show, the extra padding that was added to the
* EditText can be removed so there isn't unnecessary empty space. */
textEditor.setPadding(textEditor.getPaddingLeft(), textEditor.getPaddingTop(),
textEditor.getPaddingRight(), 0);
}
enableMediaPicking();
cancelReadyingMedia(item);
}
private void removeAllMediaFromQueue() {
for (Iterator<QueuedMedia> it = mediaQueued.iterator(); it.hasNext();) {
QueuedMedia item = it.next();
it.remove();
removeMediaFromQueue(item);
}
}
private void downsizeMedia(final QueuedMedia item) {
item.setReadyStage(QueuedMedia.ReadyStage.DOWNSIZING);
InputStream stream;
try {
stream = getContentResolver().openInputStream(item.getUri());
} catch (FileNotFoundException e) {
onMediaDownsizeFailure(item);
return;
}
Bitmap bitmap = BitmapFactory.decodeStream(stream);
IOUtils.closeQuietly(stream);
new DownsizeImageTask(STATUS_MEDIA_SIZE_LIMIT, new DownsizeImageTask.Listener() {
@Override
public void onSuccess(List<byte[]> contentList) {
item.setContent(contentList.get(0));
uploadMedia(item);
}
@Override
public void onFailure() {
onMediaDownsizeFailure(item);
}
}).execute(bitmap);
}
private void onMediaDownsizeFailure(QueuedMedia item) {
displayTransientError(R.string.error_media_upload_size);
removeMediaFromQueue(item);
}
private static String randomAlphanumericString(int count) {
char[] chars = new char[count];
Random random = new Random();
final String POSSIBLE_CHARS = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
for (int i = 0; i < count; i++) {
chars[i] = POSSIBLE_CHARS.charAt(random.nextInt(POSSIBLE_CHARS.length()));
}
return new String(chars);
}
@Nullable
private static byte[] inputStreamGetBytes(InputStream stream) {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
int read;
byte[] data = new byte[16384];
try {
while ((read = stream.read(data, 0, data.length)) != -1) {
buffer.write(data, 0, read);
}
buffer.flush();
} catch (IOException e) {
return null;
}
return buffer.toByteArray();
}
private void uploadMedia(final QueuedMedia item) {
item.setReadyStage(QueuedMedia.ReadyStage.UPLOADING);
String endpoint = getString(R.string.endpoint_media);
String url = "https://" + domain + endpoint;
final String mimeType = getContentResolver().getType(item.uri);
MimeTypeMap map = MimeTypeMap.getSingleton();
String fileExtension = map.getExtensionFromMimeType(mimeType);
final String filename = String.format("%s_%s_%s.%s",
getString(R.string.app_name),
String.valueOf(new Date().getTime()),
randomAlphanumericString(10),
fileExtension);
MultipartRequest request = new MultipartRequest(Request.Method.POST, url, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
item.setId(response.getString("id"));
} catch (JSONException e) {
onUploadFailure(item);
return;
}
waitForMediaLatch.countDown();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
onUploadFailure(item);
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<>();
headers.put("Authorization", "Bearer " + accessToken);
return headers;
}
@Override
public DataItem getData() {
byte[] content = item.getContent();
if (content == null) {
InputStream stream;
try {
stream = getContentResolver().openInputStream(item.getUri());
} catch (FileNotFoundException e) {
return null;
}
content = inputStreamGetBytes(stream);
IOUtils.closeQuietly(stream);
if (content == null) {
return null;
}
}
DataItem data = new DataItem();
data.name = "file";
data.filename = filename;
data.mimeType = mimeType;
data.content = content;
return data;
}
};
request.addMarker("media_" + item.getUri().toString());
VolleySingleton.getInstance(this).addToRequestQueue(request);
}
private void onUploadFailure(QueuedMedia item) {
displayTransientError(R.string.error_media_upload_sending);
removeMediaFromQueue(item);
}
private void cancelReadyingMedia(QueuedMedia item) {
if (item.getReadyStage() == QueuedMedia.ReadyStage.UPLOADING) {
VolleySingleton.getInstance(this).cancelRequest("media_" + item.getUri().toString());
}
waitForMediaLatch.countDown();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == MEDIA_PICK_RESULT && resultCode == RESULT_OK && data != null) {
Uri uri = data.getData();
ContentResolver contentResolver = getContentResolver();
Cursor cursor = getContentResolver().query(uri, null, null, null, null);
2017-02-07 08:05:50 +01:00
if (cursor == null) {
displayTransientError(R.string.error_media_upload_opening);
return;
}
int sizeIndex = cursor.getColumnIndex(OpenableColumns.SIZE);
cursor.moveToFirst();
long mediaSize = cursor.getLong(sizeIndex);
cursor.close();
String mimeType = contentResolver.getType(uri);
if (mimeType != null) {
String topLevelType = mimeType.substring(0, mimeType.indexOf('/'));
switch (topLevelType) {
case "video": {
if (mediaSize > STATUS_MEDIA_SIZE_LIMIT) {
displayTransientError(R.string.error_media_upload_size);
return;
}
if (mediaQueued.size() > 0
&& mediaQueued.get(0).getType() == QueuedMedia.Type.IMAGE) {
displayTransientError(R.string.error_media_upload_image_or_video);
return;
}
MediaMetadataRetriever retriever = new MediaMetadataRetriever();
retriever.setDataSource(this, uri);
Bitmap source = retriever.getFrameAtTime();
Bitmap bitmap = ThumbnailUtils.extractThumbnail(source, 96, 96);
source.recycle();
addMediaToQueue(QueuedMedia.Type.VIDEO, bitmap, uri, mediaSize);
break;
}
case "image": {
InputStream stream;
try {
stream = contentResolver.openInputStream(uri);
} catch (FileNotFoundException e) {
displayTransientError(R.string.error_media_upload_opening);
return;
}
Bitmap source = BitmapFactory.decodeStream(stream);
Bitmap bitmap = ThumbnailUtils.extractThumbnail(source, 96, 96);
source.recycle();
try {
if (stream != null) {
stream.close();
}
} catch (IOException e) {
bitmap.recycle();
displayTransientError(R.string.error_media_upload_opening);
return;
}
addMediaToQueue(QueuedMedia.Type.IMAGE, bitmap, uri, mediaSize);
break;
}
default: {
displayTransientError(R.string.error_media_upload_type);
break;
}
}
} else {
displayTransientError(R.string.error_media_upload_type);
}
}
}
void showMarkSensitive(boolean show) {
showMarkSensitive = show;
if(!showMarkSensitive) {
statusMarkSensitive = false;
}
}
void showContentWarning(boolean show) {
statusHideText = show;
if (show) {
contentWarningBar.setVisibility(View.VISIBLE);
} else {
contentWarningBar.setVisibility(View.GONE);
}
}
}