| /* |
| * Copyright (C) 2012 Google Inc. |
| * Licensed to The Android Open Source Project. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.mail.browse; |
| |
| import android.app.AlertDialog; |
| import android.app.ProgressDialog; |
| import android.content.ActivityNotFoundException; |
| import android.content.AsyncQueryHandler; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.Intent; |
| import android.content.res.AssetFileDescriptor; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.text.TextUtils; |
| import android.util.AttributeSet; |
| import android.view.LayoutInflater; |
| import android.view.MenuItem; |
| import android.view.View; |
| import android.view.View.OnClickListener; |
| import android.view.ViewGroup; |
| import android.widget.Button; |
| import android.widget.ImageView; |
| import android.widget.LinearLayout; |
| import android.widget.PopupMenu.OnMenuItemClickListener; |
| import android.widget.ProgressBar; |
| import android.widget.TextView; |
| |
| import com.android.mail.R; |
| import com.android.mail.photo.Intents; |
| import com.android.mail.photo.Intents.PhotoViewIntentBuilder; |
| import com.android.mail.photo.util.MediaStoreUtils; |
| import com.android.mail.providers.Attachment; |
| import com.android.mail.providers.UIProvider.AttachmentColumns; |
| import com.android.mail.providers.UIProvider.AttachmentDestination; |
| import com.android.mail.providers.UIProvider.AttachmentState; |
| import com.android.mail.utils.AttachmentUtils; |
| import com.android.mail.utils.LogUtils; |
| import com.android.mail.utils.MimeType; |
| import com.android.mail.utils.Utils; |
| |
| import java.io.IOException; |
| |
| /** |
| * View for a single attachment in conversation view. Shows download status and allows launching |
| * intents to act on an attachment. |
| * |
| */ |
| public class MessageHeaderAttachment extends LinearLayout implements OnClickListener, |
| OnMenuItemClickListener, DialogInterface.OnCancelListener, |
| DialogInterface.OnDismissListener { |
| |
| private Attachment mAttachment; |
| private ImageView mIcon; |
| private ImageView.ScaleType mIconScaleType; |
| private TextView mTitle; |
| private TextView mSubTitle; |
| private String mAttachmentSizeText; |
| private String mDisplayType; |
| private ProgressDialog mViewProgressDialog; |
| private AttachmentCommandHandler mCommandHandler; |
| private ProgressBar mProgress; |
| private Button mPreviewButton; |
| private Button mViewButton; |
| private Button mSaveButton; |
| private Button mInfoButton; |
| private Button mPlayButton; |
| private Button mInstallButton; |
| private Button mCancelButton; |
| |
| private ThumbnailLoadTask mThumbnailTask; |
| |
| private static final String LOG_TAG = new LogUtils().getLogTag(); |
| |
| private class AttachmentCommandHandler extends AsyncQueryHandler { |
| |
| public AttachmentCommandHandler() { |
| super(getContext().getContentResolver()); |
| } |
| |
| /** |
| * Asynchronously begin an update() on a ContentProvider. |
| * |
| */ |
| public void sendCommand(ContentValues params) { |
| startUpdate(0, null, mAttachment.uri, params, null, null); |
| } |
| |
| } |
| |
| private class ThumbnailLoadTask extends AsyncTask<Uri, Void, Bitmap> { |
| |
| private final int mWidth; |
| private final int mHeight; |
| |
| public ThumbnailLoadTask(int width, int height) { |
| mWidth = width; |
| mHeight = height; |
| } |
| |
| @Override |
| protected Bitmap doInBackground(Uri... params) { |
| final Uri thumbnailUri = params[0]; |
| |
| AssetFileDescriptor fd = null; |
| Bitmap result = null; |
| |
| try { |
| fd = getContext().getContentResolver().openAssetFileDescriptor(thumbnailUri, "r"); |
| if (isCancelled() || fd == null) { |
| return null; |
| } |
| |
| final BitmapFactory.Options opts = new BitmapFactory.Options(); |
| opts.inJustDecodeBounds = true; |
| |
| BitmapFactory.decodeFileDescriptor(fd.getFileDescriptor(), null, opts); |
| if (isCancelled() || opts.outWidth == -1 || opts.outHeight == -1) { |
| return null; |
| } |
| |
| opts.inJustDecodeBounds = false; |
| // Shrink both X and Y (but do not over-shrink) |
| // and pick the least affected dimension to ensure the thumbnail is fillable |
| // (i.e. ScaleType.CENTER_CROP) |
| final int wDivider = Math.max(opts.outWidth / mWidth, 1); |
| final int hDivider = Math.max(opts.outHeight / mHeight, 1); |
| opts.inSampleSize = Math.min(wDivider, hDivider); |
| |
| LogUtils.d(LOG_TAG, "in background, src w/h=%d/%d dst w/h=%d/%d, divider=%d", |
| opts.outWidth, opts.outHeight, mWidth, mHeight, opts.inSampleSize); |
| |
| result = BitmapFactory.decodeFileDescriptor(fd.getFileDescriptor(), null, opts); |
| |
| } catch (Throwable t) { |
| LogUtils.e(LOG_TAG, t, "Unable to decode thumbnail %s", thumbnailUri); |
| } finally { |
| if (fd != null) { |
| try { |
| fd.close(); |
| } catch (IOException e) { |
| LogUtils.e(LOG_TAG, e, ""); |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| @Override |
| protected void onPostExecute(Bitmap result) { |
| if (result == null) { |
| LogUtils.d(LOG_TAG, "back in UI thread, decode failed"); |
| setThumbnailToDefault(); |
| return; |
| } |
| |
| LogUtils.d(LOG_TAG, "back in UI thread, decode success, w/h=%d/%d", result.getWidth(), |
| result.getHeight()); |
| mIcon.setImageBitmap(result); |
| mIcon.setScaleType(mIconScaleType); |
| } |
| |
| } |
| |
| public MessageHeaderAttachment(Context context) { |
| super(context); |
| } |
| |
| public MessageHeaderAttachment(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| |
| mCommandHandler = new AttachmentCommandHandler(); |
| } |
| |
| public static MessageHeaderAttachment inflate(LayoutInflater inflater, ViewGroup parent) { |
| MessageHeaderAttachment view = (MessageHeaderAttachment) inflater.inflate( |
| R.layout.conversation_message_attachment, parent, false); |
| return view; |
| } |
| |
| /** |
| * Render or update an attachment's view. This happens immediately upon instantiation, and |
| * repeatedly as status updates stream in, so only properties with new or changed values will |
| * cause sub-views to update. |
| * |
| */ |
| public void render(Attachment attachment) { |
| final Attachment prevAttachment = mAttachment; |
| mAttachment = attachment; |
| |
| LogUtils.d(LOG_TAG, "got attachment list row: name=%s state/dest=%d/%d dled=%d" + |
| " contentUri=%s MIME=%s", attachment.name, attachment.state, |
| attachment.destination, attachment.downloadedSize, attachment.contentUri, |
| attachment.contentType); |
| |
| if (prevAttachment == null || TextUtils.equals(attachment.name, prevAttachment.name)) { |
| mTitle.setText(attachment.name); |
| } |
| |
| if (prevAttachment == null || attachment.size != prevAttachment.size) { |
| mAttachmentSizeText = AttachmentUtils.convertToHumanReadableSize(getContext(), |
| attachment.size); |
| mDisplayType = AttachmentUtils.getDisplayType(getContext(), attachment); |
| updateSubtitleText(null); |
| } |
| |
| final Uri imageUri = attachment.getImageUri(); |
| final Uri prevImageUri = (prevAttachment == null) ? null : prevAttachment.getImageUri(); |
| // begin loading a thumbnail if this is an image and either the thumbnail or the original |
| // content is ready (and different from any existing image) |
| if (imageUri != null && (prevImageUri == null || !imageUri.equals(prevImageUri))) { |
| // cancel/dispose any existing task and start a new one |
| if (mThumbnailTask != null) { |
| mThumbnailTask.cancel(true); |
| } |
| mThumbnailTask = new ThumbnailLoadTask(mIcon.getWidth(), mIcon.getHeight()); |
| mThumbnailTask.execute(imageUri); |
| } else { |
| // not an image, or no thumbnail exists. fall back to default. |
| // async image load must separately ensure the default appears upon load failure. |
| setThumbnailToDefault(); |
| } |
| |
| mProgress.setMax(attachment.size); |
| |
| updateActions(); |
| updateStatus(); |
| } |
| |
| private void setThumbnailToDefault() { |
| mIcon.setImageResource(R.drawable.ic_menu_attachment_holo_light); |
| mIcon.setScaleType(ImageView.ScaleType.CENTER); |
| } |
| |
| /** |
| * Update progress-related views. Will also trigger a view intent if a progress dialog was |
| * previously brought up (by tapping 'View') and the download has now finished. |
| */ |
| private void updateStatus() { |
| final boolean showProgress = mAttachment.size > 0 && mAttachment.downloadedSize > 0 |
| && mAttachment.downloadedSize < mAttachment.size; |
| |
| if (mViewProgressDialog != null && mViewProgressDialog.isShowing()) { |
| mViewProgressDialog.setProgress(mAttachment.downloadedSize); |
| mViewProgressDialog.setIndeterminate(!showProgress); |
| |
| if (!mAttachment.isDownloading()) { |
| mViewProgressDialog.dismiss(); |
| } |
| |
| if (mAttachment.state == AttachmentState.SAVED) { |
| sendViewIntent(); |
| } |
| } else { |
| |
| if (mAttachment.isDownloading()) { |
| mProgress.setProgress(mAttachment.downloadedSize); |
| setProgressVisible(true); |
| mProgress.setIndeterminate(!showProgress); |
| } else { |
| setProgressVisible(false); |
| } |
| |
| } |
| |
| if (mAttachment.state == AttachmentState.FAILED) { |
| mSubTitle.setText(getResources().getString(R.string.download_failed)); |
| } else { |
| updateSubtitleText(mAttachment.isSavedToExternal() ? |
| getResources().getString(R.string.saved) : null); |
| } |
| } |
| |
| private void setProgressVisible(boolean visible) { |
| if (visible) { |
| mProgress.setVisibility(VISIBLE); |
| mSubTitle.setVisibility(INVISIBLE); |
| } else { |
| mProgress.setVisibility(GONE); |
| mSubTitle.setVisibility(VISIBLE); |
| } |
| } |
| |
| private void updateSubtitleText(String prefix) { |
| // TODO: make this a formatted resource when we have a UX design. |
| // not worth translation right now. |
| StringBuilder sb = new StringBuilder(); |
| if (prefix != null) { |
| sb.append(prefix); |
| } |
| sb.append(mAttachmentSizeText); |
| sb.append(' '); |
| sb.append(mDisplayType); |
| mSubTitle.setText(sb.toString()); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| |
| mIcon = (ImageView) findViewById(R.id.attachment_icon); |
| mTitle = (TextView) findViewById(R.id.attachment_title); |
| mSubTitle = (TextView) findViewById(R.id.attachment_subtitle); |
| mProgress = (ProgressBar) findViewById(R.id.attachment_progress); |
| |
| mPreviewButton = (Button) findViewById(R.id.preview_attachment); |
| mViewButton = (Button) findViewById(R.id.view_attachment); |
| mSaveButton = (Button) findViewById(R.id.save_attachment); |
| mInfoButton = (Button) findViewById(R.id.info_attachment); |
| mPlayButton = (Button) findViewById(R.id.play_attachment); |
| mInstallButton = (Button) findViewById(R.id.install_attachment); |
| mCancelButton = (Button) findViewById(R.id.cancel_attachment); |
| |
| setOnClickListener(this); |
| mPreviewButton.setOnClickListener(this); |
| mViewButton.setOnClickListener(this); |
| mSaveButton.setOnClickListener(this); |
| mInfoButton.setOnClickListener(this); |
| mPlayButton.setOnClickListener(this); |
| mInstallButton.setOnClickListener(this); |
| mCancelButton.setOnClickListener(this); |
| |
| mIconScaleType = mIcon.getScaleType(); |
| } |
| |
| @Override |
| public void onClick(View v) { |
| onClick(v.getId(), v); |
| } |
| |
| @Override |
| public boolean onMenuItemClick(MenuItem item) { |
| return onClick(item.getItemId(), null); |
| } |
| |
| private boolean onClick(int res, View v) { |
| switch (res) { |
| case R.id.preview_attachment: |
| getContext().startActivity(mAttachment.previewIntent); |
| break; |
| case R.id.view_attachment: |
| case R.id.play_attachment: |
| showAttachment(AttachmentDestination.CACHE); |
| break; |
| case R.id.save_attachment: |
| if (mAttachment.canSave()) { |
| startDownloadingAttachment(AttachmentDestination.EXTERNAL); |
| } |
| break; |
| case R.id.info_attachment: |
| AlertDialog.Builder builder = new AlertDialog.Builder(getContext()); |
| int dialogMessage = MimeType.isBlocked(mAttachment.contentType) |
| ? R.string.attachment_type_blocked : R.string.no_application_found; |
| builder.setTitle(R.string.more_info_attachment).setMessage(dialogMessage).show(); |
| break; |
| case R.id.install_attachment: |
| showAttachment(AttachmentDestination.EXTERNAL); |
| break; |
| case R.id.cancel_attachment: |
| cancelAttachment(); |
| break; |
| default: |
| // entire attachment view is clickable. |
| // TODO: this should execute a default action |
| break; |
| } |
| return true; |
| } |
| |
| private void showAttachment(int destination) { |
| if (mAttachment.isPresentLocally()) { |
| sendViewIntent(); |
| } else { |
| showDownloadingDialog(); |
| startDownloadingAttachment(destination); |
| } |
| } |
| |
| private void startDownloadingAttachment(int destination) { |
| final ContentValues params = new ContentValues(2); |
| params.put(AttachmentColumns.STATE, AttachmentState.DOWNLOADING); |
| params.put(AttachmentColumns.DESTINATION, destination); |
| |
| mCommandHandler.sendCommand(params); |
| } |
| |
| private void cancelAttachment() { |
| final ContentValues params = new ContentValues(1); |
| params.put(AttachmentColumns.STATE, AttachmentState.NOT_SAVED); |
| |
| mCommandHandler.sendCommand(params); |
| } |
| |
| private void setButtonVisible(View button, boolean visible) { |
| button.setVisibility(visible ? VISIBLE : GONE); |
| } |
| |
| /** |
| * Update all action buttons based on current downloading state. |
| */ |
| private void updateActions() { |
| // To avoid visibility state transition bugs, every button's visibility should be touched |
| // once by this routine. |
| |
| final boolean isDownloading = mAttachment.isDownloading(); |
| |
| setButtonVisible(mCancelButton, isDownloading); |
| |
| final boolean canInstall = MimeType.isInstallable(mAttachment.contentType); |
| setButtonVisible(mInstallButton, canInstall && !isDownloading); |
| |
| if (!canInstall) { |
| |
| final boolean canPreview = (mAttachment.previewIntent != null); |
| final boolean canView = MimeType.isViewable(getContext(), mAttachment.contentType); |
| final boolean canPlay = MimeType.isPlayable(mAttachment.contentType); |
| |
| setButtonVisible(mPreviewButton, canPreview); |
| setButtonVisible(mPlayButton, canView && canPlay && !isDownloading); |
| setButtonVisible(mViewButton, canView && !canPlay && !isDownloading); |
| setButtonVisible(mSaveButton, canView && mAttachment.canSave() && !isDownloading); |
| setButtonVisible(mInfoButton, !(canPreview || canView)); |
| |
| } else { |
| |
| setButtonVisible(mPreviewButton, false); |
| setButtonVisible(mPlayButton, false); |
| setButtonVisible(mViewButton, false); |
| setButtonVisible(mSaveButton, false); |
| setButtonVisible(mInfoButton, false); |
| |
| } |
| } |
| |
| /** |
| * View an attachment by an application on device. |
| */ |
| private void sendViewIntent() { |
| if (MediaStoreUtils.isImageMimeType(Utils.normalizeMimeType(mAttachment.contentType))) { |
| final PhotoViewIntentBuilder builder = |
| Intents.newPhotoViewActivityIntentBuilder(getContext()); |
| builder.setAlbumName(mAttachment.name) |
| .setPhotosUri(mAttachment.contentUri.toString()); |
| |
| getContext().startActivity(builder.build()); |
| return; |
| } |
| |
| Intent intent = new Intent(Intent.ACTION_VIEW); |
| intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION |
| | Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET); |
| Utils.setIntentDataAndTypeAndNormalize(intent, mAttachment.contentUri, |
| mAttachment.contentType); |
| try { |
| getContext().startActivity(intent); |
| } catch (ActivityNotFoundException e) { |
| // couldn't find activity for View intent |
| LogUtils.e(LOG_TAG, "Coun't find Activity for intent", e); |
| } |
| } |
| |
| /** |
| * Displays a loading dialog to be used for downloading attachments. |
| * Must be called on the UI thread. |
| */ |
| private void showDownloadingDialog() { |
| mViewProgressDialog = new ProgressDialog(getContext()); |
| mViewProgressDialog.setTitle(R.string.fetching_attachment); |
| mViewProgressDialog.setMessage(getResources().getString(R.string.please_wait)); |
| mViewProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); |
| mViewProgressDialog.setMax(mAttachment.size); |
| mViewProgressDialog.setOnDismissListener(this); |
| mViewProgressDialog.setOnCancelListener(this); |
| mViewProgressDialog.show(); |
| |
| // The progress number format needs to be set after the dialog is shown. See bug: 5149918 |
| mViewProgressDialog.setProgressNumberFormat(null); |
| } |
| |
| @Override |
| public void onDismiss(DialogInterface dialog) { |
| mViewProgressDialog = null; |
| } |
| |
| @Override |
| public void onCancel(DialogInterface dialog) { |
| cancelAttachment(); |
| } |
| |
| } |