Andy Huang | 88fc42e | 2012-03-08 15:02:43 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2012 Google Inc. |
| 3 | * Licensed to The Android Open Source Project. |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | package com.android.mail.browse; |
| 19 | |
| 20 | import android.app.AlertDialog; |
| 21 | import android.app.LoaderManager; |
| 22 | import android.app.ProgressDialog; |
| 23 | import android.content.ActivityNotFoundException; |
| 24 | import android.content.AsyncQueryHandler; |
| 25 | import android.content.ContentValues; |
| 26 | import android.content.Context; |
| 27 | import android.content.DialogInterface; |
| 28 | import android.content.Intent; |
| 29 | import android.content.Loader; |
| 30 | import android.database.Cursor; |
| 31 | import android.net.Uri; |
| 32 | import android.os.Bundle; |
| 33 | import android.util.AttributeSet; |
| 34 | import android.view.LayoutInflater; |
| 35 | import android.view.MenuItem; |
| 36 | import android.view.View; |
| 37 | import android.view.View.OnClickListener; |
| 38 | import android.view.ViewGroup; |
| 39 | import android.widget.Button; |
| 40 | import android.widget.ImageView; |
| 41 | import android.widget.LinearLayout; |
| 42 | import android.widget.PopupMenu.OnMenuItemClickListener; |
| 43 | import android.widget.ProgressBar; |
| 44 | import android.widget.TextView; |
| 45 | |
| 46 | import com.android.mail.R; |
| 47 | import com.android.mail.browse.AttachmentLoader.AttachmentCursor; |
| 48 | import com.android.mail.providers.Attachment; |
| 49 | import com.android.mail.providers.UIProvider.AttachmentColumns; |
| 50 | import com.android.mail.providers.UIProvider.AttachmentDestination; |
| 51 | import com.android.mail.providers.UIProvider.AttachmentState; |
| 52 | import com.android.mail.utils.AttachmentUtils; |
| 53 | import com.android.mail.utils.LogUtils; |
| 54 | import com.android.mail.utils.MimeType; |
| 55 | import com.android.mail.utils.Utils; |
| 56 | |
| 57 | /** |
| 58 | * View for a single attachment in conversation view. Shows download status and allows launching |
| 59 | * intents to act on an attachment. |
| 60 | * |
| 61 | */ |
| 62 | public class MessageHeaderAttachment extends LinearLayout implements OnClickListener, |
| 63 | OnMenuItemClickListener, DialogInterface.OnCancelListener, |
| 64 | DialogInterface.OnDismissListener, LoaderManager.LoaderCallbacks<Cursor> { |
| 65 | |
| 66 | private LoaderManager mLoaderManager; |
| 67 | private Attachment mAttachment; |
| 68 | private ImageView mIcon; |
| 69 | private TextView mTitle; |
| 70 | private TextView mSubTitle; |
| 71 | private String mAttachmentSizeText; |
| 72 | private String mDisplayType; |
| 73 | private ProgressDialog mViewProgressDialog; |
| 74 | private AttachmentCommandHandler mCommandHandler; |
| 75 | private ProgressBar mProgress; |
| 76 | private Button mPreviewButton; |
| 77 | private Button mViewButton; |
| 78 | private Button mSaveButton; |
| 79 | private Button mInfoButton; |
| 80 | private Button mPlayButton; |
| 81 | private Button mInstallButton; |
| 82 | private Button mCancelButton; |
| 83 | |
| 84 | private static final String LOG_TAG = new LogUtils().getLogTag(); |
| 85 | |
| 86 | private class AttachmentCommandHandler extends AsyncQueryHandler { |
| 87 | |
| 88 | public AttachmentCommandHandler() { |
| 89 | super(getContext().getContentResolver()); |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Asynchronously begin an update() on a ContentProvider and initialize a loader to watch |
| 94 | * for resulting changes on this attachment. |
| 95 | * |
| 96 | */ |
| 97 | public void sendCommand(ContentValues params) { |
| 98 | startUpdate(0, null, mAttachment.uri, params, null, null); |
| 99 | mLoaderManager.initLoader(mAttachment.uri.hashCode(), Bundle.EMPTY, |
| 100 | MessageHeaderAttachment.this); |
| 101 | } |
| 102 | |
| 103 | } |
| 104 | |
| 105 | public MessageHeaderAttachment(Context context) { |
| 106 | super(context); |
| 107 | } |
| 108 | |
| 109 | public MessageHeaderAttachment(Context context, AttributeSet attrs) { |
| 110 | super(context, attrs); |
| 111 | |
| 112 | mCommandHandler = new AttachmentCommandHandler(); |
| 113 | } |
| 114 | |
| 115 | public static MessageHeaderAttachment inflate(LayoutInflater inflater, ViewGroup parent, |
| 116 | LoaderManager loaderManager) { |
| 117 | MessageHeaderAttachment view = (MessageHeaderAttachment) inflater.inflate( |
| 118 | R.layout.conversation_message_attachment, parent, false); |
| 119 | |
| 120 | view.mLoaderManager = loaderManager; |
| 121 | |
| 122 | return view; |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * Render most of the UI using given immutable attachment properties. This happens immediately |
| 127 | * upon instantiation. |
| 128 | * |
| 129 | */ |
| 130 | public void render(Attachment attachment) { |
| 131 | mAttachment = attachment; |
| 132 | |
| 133 | mTitle.setText(attachment.name); |
| 134 | |
| 135 | mAttachmentSizeText = AttachmentUtils.convertToHumanReadableSize(getContext(), |
| 136 | attachment.size); |
| 137 | mDisplayType = AttachmentUtils.getDisplayType(getContext(), attachment); |
| 138 | updateSubtitleText(null); |
| 139 | |
| 140 | if (mAttachment.isImage() && mAttachment.thumbnailUri != null) { |
| 141 | // FIXME: this decodes on the UI thread. Also, it doesn't handle large images, so |
| 142 | // using the full image is out of the question. |
| 143 | mIcon.setImageURI(mAttachment.thumbnailUri); |
| 144 | } |
| 145 | if (mIcon.getDrawable() == null) { |
| 146 | // not an image, or image load failed. fall back to default. |
| 147 | mIcon.setImageResource(R.drawable.ic_menu_attachment_holo_light); |
| 148 | mIcon.setScaleType(ImageView.ScaleType.CENTER); |
| 149 | } |
| 150 | |
| 151 | mProgress.setMax(attachment.size); |
| 152 | |
| 153 | updateActions(); |
| 154 | |
| 155 | if (mAttachment.isDownloading()) { |
| 156 | mLoaderManager.initLoader(mAttachment.uri.hashCode(), Bundle.EMPTY, this); |
| 157 | // TODO: clean up loader when the view is detached |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | private void updateStatus(Attachment newAttachment) { |
| 162 | |
| 163 | LogUtils.d(LOG_TAG, "got attachment update: uri=%s dled=%d state=%d contentUri=%s MIME=%s", |
| 164 | newAttachment.uri, newAttachment.downloadedSize, newAttachment.state, |
| 165 | newAttachment.contentUri, newAttachment.mimeType); |
| 166 | |
| 167 | mAttachment = newAttachment; |
| 168 | |
| 169 | final boolean showProgress = newAttachment.size > 0 && newAttachment.downloadedSize > 0 |
| 170 | && newAttachment.downloadedSize < newAttachment.size; |
| 171 | |
| 172 | if (mViewProgressDialog != null && mViewProgressDialog.isShowing()) { |
| 173 | mViewProgressDialog.setProgress(newAttachment.downloadedSize); |
| 174 | mViewProgressDialog.setIndeterminate(showProgress); |
| 175 | |
| 176 | if (!newAttachment.isDownloading()) { |
| 177 | mViewProgressDialog.dismiss(); |
| 178 | } |
| 179 | |
| 180 | if (newAttachment.state == AttachmentState.SAVED) { |
| 181 | sendViewIntent(); |
| 182 | } |
| 183 | } else { |
| 184 | |
| 185 | if (newAttachment.isDownloading()) { |
| 186 | mProgress.setProgress(newAttachment.downloadedSize); |
| 187 | setProgressVisible(true); |
| 188 | } else { |
| 189 | setProgressVisible(false); |
| 190 | } |
| 191 | |
| 192 | } |
| 193 | |
| 194 | if (newAttachment.state == AttachmentState.FAILED) { |
| 195 | mSubTitle.setText(getResources().getString(R.string.download_failed)); |
| 196 | } else { |
| 197 | updateSubtitleText(newAttachment.isSavedToExternal() ? |
| 198 | getResources().getString(R.string.saved) : null); |
| 199 | } |
| 200 | |
| 201 | updateActions(); |
| 202 | } |
| 203 | |
| 204 | private void setProgressVisible(boolean visible) { |
| 205 | if (visible) { |
| 206 | mProgress.setVisibility(VISIBLE); |
| 207 | mSubTitle.setVisibility(INVISIBLE); |
| 208 | } else { |
| 209 | mProgress.setVisibility(GONE); |
| 210 | mSubTitle.setVisibility(VISIBLE); |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | private void updateSubtitleText(String prefix) { |
| 215 | // TODO: make this a formatted resource when we have a UX design. |
| 216 | // not worth translation right now. |
| 217 | StringBuilder sb = new StringBuilder(); |
| 218 | if (prefix != null) { |
| 219 | sb.append(prefix); |
| 220 | } |
| 221 | sb.append(mAttachmentSizeText); |
| 222 | sb.append(' '); |
| 223 | sb.append(mDisplayType); |
| 224 | mSubTitle.setText(sb.toString()); |
| 225 | } |
| 226 | |
| 227 | @Override |
| 228 | protected void onFinishInflate() { |
| 229 | super.onFinishInflate(); |
| 230 | |
| 231 | mIcon = (ImageView) findViewById(R.id.attachment_icon); |
| 232 | mTitle = (TextView) findViewById(R.id.attachment_title); |
| 233 | mSubTitle = (TextView) findViewById(R.id.attachment_subtitle); |
| 234 | mProgress = (ProgressBar) findViewById(R.id.attachment_progress); |
| 235 | |
| 236 | mPreviewButton = (Button) findViewById(R.id.preview_attachment); |
| 237 | mViewButton = (Button) findViewById(R.id.view_attachment); |
| 238 | mSaveButton = (Button) findViewById(R.id.save_attachment); |
| 239 | mInfoButton = (Button) findViewById(R.id.info_attachment); |
| 240 | mPlayButton = (Button) findViewById(R.id.play_attachment); |
| 241 | mInstallButton = (Button) findViewById(R.id.install_attachment); |
| 242 | mCancelButton = (Button) findViewById(R.id.cancel_attachment); |
| 243 | |
| 244 | setOnClickListener(this); |
| 245 | mPreviewButton.setOnClickListener(this); |
| 246 | mViewButton.setOnClickListener(this); |
| 247 | mSaveButton.setOnClickListener(this); |
| 248 | mInfoButton.setOnClickListener(this); |
| 249 | mPlayButton.setOnClickListener(this); |
| 250 | mInstallButton.setOnClickListener(this); |
| 251 | mCancelButton.setOnClickListener(this); |
| 252 | } |
| 253 | |
| 254 | @Override |
| 255 | public void onClick(View v) { |
| 256 | onClick(v.getId(), v); |
| 257 | } |
| 258 | |
| 259 | @Override |
| 260 | public boolean onMenuItemClick(MenuItem item) { |
| 261 | return onClick(item.getItemId(), null); |
| 262 | } |
| 263 | |
| 264 | private boolean onClick(int res, View v) { |
| 265 | switch (res) { |
| 266 | case R.id.preview_attachment: |
| 267 | getContext().startActivity(mAttachment.previewIntent); |
| 268 | break; |
| 269 | case R.id.view_attachment: |
| 270 | case R.id.play_attachment: |
| 271 | showAttachment(AttachmentDestination.CACHE); |
| 272 | break; |
| 273 | case R.id.save_attachment: |
| 274 | if (mAttachment.canSave()) { |
| 275 | startDownloadingAttachment(AttachmentDestination.EXTERNAL); |
| 276 | } |
| 277 | break; |
| 278 | case R.id.info_attachment: |
| 279 | AlertDialog.Builder builder = new AlertDialog.Builder(getContext()); |
| 280 | int dialogMessage = MimeType.isBlocked(mAttachment.mimeType) |
| 281 | ? R.string.attachment_type_blocked : R.string.no_application_found; |
| 282 | builder.setTitle(R.string.more_info_attachment).setMessage(dialogMessage).show(); |
| 283 | break; |
| 284 | case R.id.install_attachment: |
| 285 | showAttachment(AttachmentDestination.EXTERNAL); |
| 286 | break; |
| 287 | case R.id.cancel_attachment: |
| 288 | cancelAttachment(); |
| 289 | break; |
| 290 | default: |
| 291 | // entire attachment view is clickable. |
| 292 | // TODO: this should execute a default action |
| 293 | break; |
| 294 | } |
| 295 | return true; |
| 296 | } |
| 297 | |
| 298 | private void showAttachment(int destination) { |
| 299 | if (mAttachment.isPresentLocally()) { |
| 300 | sendViewIntent(); |
| 301 | } else { |
| 302 | showDownloadingDialog(); |
| 303 | startDownloadingAttachment(destination); |
| 304 | } |
| 305 | } |
| 306 | |
| 307 | @Override |
| 308 | public Loader<Cursor> onCreateLoader(int id, Bundle args) { |
| 309 | return new AttachmentLoader(getContext(), mAttachment.uri); |
| 310 | } |
| 311 | |
| 312 | @Override |
| 313 | public void onLoadFinished(Loader<Cursor> loader, Cursor data) { |
| 314 | AttachmentCursor cursor = (AttachmentCursor) data; |
| 315 | if (cursor == null || cursor.isClosed() || cursor.getCount() == 0) { |
| 316 | return; |
| 317 | } |
| 318 | cursor.moveToFirst(); |
| 319 | updateStatus(cursor.get()); |
| 320 | } |
| 321 | |
| 322 | @Override |
| 323 | public void onLoaderReset(Loader<Cursor> loader) { |
| 324 | // Do nothing. |
| 325 | } |
| 326 | |
| 327 | private void startDownloadingAttachment(int destination) { |
| 328 | final ContentValues params = new ContentValues(2); |
| 329 | params.put(AttachmentColumns.STATE, AttachmentState.DOWNLOADING); |
| 330 | params.put(AttachmentColumns.DESTINATION, destination); |
| 331 | |
| 332 | mCommandHandler.sendCommand(params); |
| 333 | } |
| 334 | |
| 335 | private void cancelAttachment() { |
| 336 | final ContentValues params = new ContentValues(1); |
| 337 | params.put(AttachmentColumns.STATE, AttachmentState.NOT_SAVED); |
| 338 | |
| 339 | mCommandHandler.sendCommand(params); |
| 340 | } |
| 341 | |
| 342 | private void setButtonVisible(View button, boolean visible) { |
| 343 | button.setVisibility(visible ? VISIBLE : GONE); |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * Update all action buttons based on current downloading state. |
| 348 | */ |
| 349 | private void updateActions() { |
| 350 | // To avoid visibility state transition bugs, every button's visibility should be touched |
| 351 | // once by this routine. |
| 352 | |
| 353 | final boolean isDownloading = mAttachment.isDownloading(); |
| 354 | |
| 355 | setButtonVisible(mCancelButton, isDownloading); |
| 356 | |
| 357 | final boolean canInstall = MimeType.isInstallable(mAttachment.mimeType); |
| 358 | setButtonVisible(mInstallButton, canInstall && !isDownloading); |
| 359 | |
| 360 | if (!canInstall) { |
| 361 | |
| 362 | final boolean canPreview = (mAttachment.previewIntent != null); |
| 363 | final boolean canView = MimeType.isViewable(getContext(), mAttachment.mimeType); |
| 364 | final boolean canPlay = MimeType.isPlayable(mAttachment.mimeType); |
| 365 | |
| 366 | setButtonVisible(mPreviewButton, canPreview); |
| 367 | setButtonVisible(mPlayButton, canView && canPlay && !isDownloading); |
| 368 | setButtonVisible(mViewButton, canView && !canPlay && !isDownloading); |
| 369 | setButtonVisible(mSaveButton, canView && mAttachment.canSave() && !isDownloading); |
| 370 | setButtonVisible(mInfoButton, !(canPreview || canView)); |
| 371 | |
| 372 | } else { |
| 373 | |
| 374 | setButtonVisible(mPreviewButton, false); |
| 375 | setButtonVisible(mPlayButton, false); |
| 376 | setButtonVisible(mViewButton, false); |
| 377 | setButtonVisible(mSaveButton, false); |
| 378 | setButtonVisible(mInfoButton, false); |
| 379 | |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | /** |
| 384 | * View an attachment by an application on device. |
| 385 | */ |
| 386 | private void sendViewIntent() { |
| 387 | Intent intent = new Intent(Intent.ACTION_VIEW); |
| 388 | intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION |
| 389 | | Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET); |
| 390 | Utils.setIntentDataAndTypeAndNormalize(intent, Uri.parse(mAttachment.contentUri), |
| 391 | mAttachment.mimeType); |
| 392 | try { |
| 393 | getContext().startActivity(intent); |
| 394 | } catch (ActivityNotFoundException e) { |
| 395 | // couldn't find activity for View intent |
| 396 | LogUtils.e(LOG_TAG, "Coun't find Activity for intent", e); |
| 397 | } |
| 398 | } |
| 399 | |
| 400 | /** |
| 401 | * Displays a loading dialog to be used for downloading attachments. |
| 402 | * Must be called on the UI thread. |
| 403 | */ |
| 404 | private void showDownloadingDialog() { |
| 405 | mViewProgressDialog = new ProgressDialog(getContext()); |
| 406 | mViewProgressDialog.setTitle(R.string.fetching_attachment); |
| 407 | mViewProgressDialog.setMessage(getResources().getString(R.string.please_wait)); |
| 408 | mViewProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); |
| 409 | mViewProgressDialog.setMax(mAttachment.size); |
| 410 | mViewProgressDialog.setOnDismissListener(this); |
| 411 | mViewProgressDialog.setOnCancelListener(this); |
| 412 | mViewProgressDialog.show(); |
| 413 | |
| 414 | // The progress number format needs to be set after the dialog is shown. See bug: 5149918 |
| 415 | mViewProgressDialog.setProgressNumberFormat(null); |
| 416 | } |
| 417 | |
| 418 | @Override |
| 419 | public void onDismiss(DialogInterface dialog) { |
| 420 | mViewProgressDialog = null; |
| 421 | } |
| 422 | |
| 423 | @Override |
| 424 | public void onCancel(DialogInterface dialog) { |
| 425 | cancelAttachment(); |
| 426 | } |
| 427 | |
| 428 | } |