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android / platform / frameworks / base / bd1fb4021f790c7f61f2bb64feef1df8f14b1b7f / . / packages / PrintSpooler / src / com / android / printspooler / ui / PrintActivity.java
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/*
* Copyright (C) 2014 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.printspooler.ui;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.content.res.Configuration;
import android.database.DataSetObserver;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.ParcelFileDescriptor;
import android.os.RemoteException;
import android.print.IPrintDocumentAdapter;
import android.print.PageRange;
import android.print.PrintAttributes;
import android.print.PrintAttributes.MediaSize;
import android.print.PrintAttributes.Resolution;
import android.print.PrintDocumentInfo;
import android.print.PrintJobInfo;
import android.print.PrintManager;
import android.print.PrinterCapabilitiesInfo;
import android.print.PrinterId;
import android.print.PrinterInfo;
import android.printservice.PrintService;
import android.provider.DocumentsContract;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextUtils.SimpleStringSplitter;
import android.text.TextWatcher;
import android.util.ArrayMap;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.TextView;
import com.android.printspooler.R;
import com.android.printspooler.model.MutexFileProvider;
import com.android.printspooler.model.PrintSpoolerProvider;
import com.android.printspooler.model.PrintSpoolerService;
import com.android.printspooler.model.RemotePrintDocument;
import com.android.printspooler.model.RemotePrintDocument.RemotePrintDocumentInfo;
import com.android.printspooler.renderer.IPdfEditor;
import com.android.printspooler.renderer.PdfManipulationService;
import com.android.printspooler.util.MediaSizeUtils;
import com.android.printspooler.util.MediaSizeUtils.MediaSizeComparator;
import com.android.printspooler.util.PageRangeUtils;
import com.android.printspooler.util.PrintOptionUtils;
import com.android.printspooler.widget.PrintContentView;
import com.android.printspooler.widget.PrintContentView.OptionsStateChangeListener;
import com.android.printspooler.widget.PrintContentView.OptionsStateController;
import libcore.io.IoUtils;
import libcore.io.Streams;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class PrintActivity extends Activity implements RemotePrintDocument.UpdateResultCallbacks,
PrintErrorFragment.OnActionListener, PageAdapter.ContentCallbacks,
OptionsStateChangeListener, OptionsStateController {
private static final String LOG_TAG = "PrintActivity";
private static final boolean DEBUG = false;
public static final String INTENT_EXTRA_PRINTER_ID = "INTENT_EXTRA_PRINTER_ID";
private static final String FRAGMENT_TAG = "FRAGMENT_TAG";
private static final int ORIENTATION_PORTRAIT = 0;
private static final int ORIENTATION_LANDSCAPE = 1;
private static final int ACTIVITY_REQUEST_CREATE_FILE = 1;
private static final int ACTIVITY_REQUEST_SELECT_PRINTER = 2;
private static final int ACTIVITY_REQUEST_POPULATE_ADVANCED_PRINT_OPTIONS = 3;
private static final int DEST_ADAPTER_MAX_ITEM_COUNT = 9;
private static final int DEST_ADAPTER_ITEM_ID_SAVE_AS_PDF = Integer.MAX_VALUE;
private static final int DEST_ADAPTER_ITEM_ID_ALL_PRINTERS = Integer.MAX_VALUE - 1;
private static final int STATE_INITIALIZING = 0;
private static final int STATE_CONFIGURING = 1;
private static final int STATE_PRINT_CONFIRMED = 2;
private static final int STATE_PRINT_CANCELED = 3;
private static final int STATE_UPDATE_FAILED = 4;
private static final int STATE_CREATE_FILE_FAILED = 5;
private static final int STATE_PRINTER_UNAVAILABLE = 6;
private static final int STATE_UPDATE_SLOW = 7;
private static final int STATE_PRINT_COMPLETED = 8;
private static final int UI_STATE_PREVIEW = 0;
private static final int UI_STATE_ERROR = 1;
private static final int UI_STATE_PROGRESS = 2;
private static final int MIN_COPIES = 1;
private static final String MIN_COPIES_STRING = String.valueOf(MIN_COPIES);
private static final Pattern PATTERN_DIGITS = Pattern.compile("[\\d]+");
private static final Pattern PATTERN_ESCAPE_SPECIAL_CHARS = Pattern.compile(
"(?=[]\\[+&|!(){}^\"~*?:\\\\])");
private static final Pattern PATTERN_PAGE_RANGE = Pattern.compile(
"[\\s]*[0-9]+[\\-]?[\\s]*[0-9]*[\\s]*?(([,])"
+ "[\\s]*[0-9]+[\\s]*[\\-]?[\\s]*[0-9]*[\\s]*|[\\s]*)+");
public static final PageRange[] ALL_PAGES_ARRAY = new PageRange[]{PageRange.ALL_PAGES};
private final PrinterAvailabilityDetector mPrinterAvailabilityDetector =
new PrinterAvailabilityDetector();
private final SimpleStringSplitter mStringCommaSplitter = new SimpleStringSplitter(',');
private final OnFocusChangeListener mSelectAllOnFocusListener = new SelectAllOnFocusListener();
private PrintSpoolerProvider mSpoolerProvider;
private PrintPreviewController mPrintPreviewController;
private PrintJobInfo mPrintJob;
private RemotePrintDocument mPrintedDocument;
private PrinterRegistry mPrinterRegistry;
private EditText mCopiesEditText;
private TextView mPageRangeTitle;
private EditText mPageRangeEditText;
private Spinner mDestinationSpinner;
private DestinationAdapter mDestinationSpinnerAdapter;
private Spinner mMediaSizeSpinner;
private ArrayAdapter<SpinnerItem<MediaSize>> mMediaSizeSpinnerAdapter;
private Spinner mColorModeSpinner;
private ArrayAdapter<SpinnerItem<Integer>> mColorModeSpinnerAdapter;
private Spinner mOrientationSpinner;
private ArrayAdapter<SpinnerItem<Integer>> mOrientationSpinnerAdapter;
private Spinner mRangeOptionsSpinner;
private PrintContentView mOptionsContent;
private View mSummaryContainer;
private TextView mSummaryCopies;
private TextView mSummaryPaperSize;
private Button mMoreOptionsButton;
private ImageView mPrintButton;
private ProgressMessageController mProgressMessageController;
private MutexFileProvider mFileProvider;
private MediaSizeComparator mMediaSizeComparator;
private PrinterInfo mCurrentPrinter;
private PageRange[] mSelectedPages;
private String mCallingPackageName;
private int mCurrentPageCount;
private int mState = STATE_INITIALIZING;
private int mUiState = UI_STATE_PREVIEW;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle extras = getIntent().getExtras();
mPrintJob = extras.getParcelable(PrintManager.EXTRA_PRINT_JOB);
if (mPrintJob == null) {
throw new IllegalArgumentException(PrintManager.EXTRA_PRINT_JOB
+ " cannot be null");
}
mPrintJob.setAttributes(new PrintAttributes.Builder().build());
final IBinder adapter = extras.getBinder(PrintManager.EXTRA_PRINT_DOCUMENT_ADAPTER);
if (adapter == null) {
throw new IllegalArgumentException(PrintManager.EXTRA_PRINT_DOCUMENT_ADAPTER
+ " cannot be null");
}
mCallingPackageName = extras.getString(DocumentsContract.EXTRA_PACKAGE_NAME);
// This will take just a few milliseconds, so just wait to
// bind to the local service before showing the UI.
mSpoolerProvider = new PrintSpoolerProvider(this,
new Runnable() {
@Override
public void run() {
onConnectedToPrintSpooler(adapter);
}
});
}
private void onConnectedToPrintSpooler(final IBinder documentAdapter) {
// Now that we are bound to the print spooler service,
// create the printer registry and wait for it to get
// the first batch of results which will be delivered
// after reading historical data. This should be pretty
// fast, so just wait before showing the UI.
mPrinterRegistry = new PrinterRegistry(PrintActivity.this,
new Runnable() {
@Override
public void run() {
onPrinterRegistryReady(documentAdapter);
}
});
}
private void onPrinterRegistryReady(IBinder documentAdapter) {
// Now that we are bound to the local print spooler service
// and the printer registry loaded the historical printers
// we can show the UI without flickering.
setTitle(R.string.print_dialog);
setContentView(R.layout.print_activity);
try {
mFileProvider = new MutexFileProvider(
PrintSpoolerService.generateFileForPrintJob(
PrintActivity.this, mPrintJob.getId()));
} catch (IOException ioe) {
// At this point we cannot recover, so just take it down.
throw new IllegalStateException("Cannot create print job file", ioe);
}
mPrintPreviewController = new PrintPreviewController(PrintActivity.this,
mFileProvider);
mPrintedDocument = new RemotePrintDocument(PrintActivity.this,
IPrintDocumentAdapter.Stub.asInterface(documentAdapter),
mFileProvider, new RemotePrintDocument.RemoteAdapterDeathObserver() {
@Override
public void onDied() {
// If we are finishing or we are in a state that we do not need any
// data from the printing app, then no need to finish.
if (isFinishing() || (isFinalState(mState) && !mPrintedDocument.isUpdating())) {
return;
}
if (mPrintedDocument.isUpdating()) {
mPrintedDocument.cancel();
}
setState(STATE_PRINT_CANCELED);
doFinish();
}
}, PrintActivity.this);
mProgressMessageController = new ProgressMessageController(
PrintActivity.this);
mMediaSizeComparator = new MediaSizeComparator(PrintActivity.this);
mDestinationSpinnerAdapter = new DestinationAdapter();
bindUi();
updateOptionsUi();
// Now show the updated UI to avoid flicker.
mOptionsContent.setVisibility(View.VISIBLE);
mSelectedPages = computeSelectedPages();
mPrintedDocument.start();
ensurePreviewUiShown();
setState(STATE_CONFIGURING);
}
@Override
public void onResume() {
super.onResume();
if (mState != STATE_INITIALIZING && mCurrentPrinter != null) {
mPrinterRegistry.setTrackedPrinter(mCurrentPrinter.getId());
}
}
@Override
public void onPause() {
PrintSpoolerService spooler = mSpoolerProvider.getSpooler();
if (mState == STATE_INITIALIZING) {
if (isFinishing()) {
spooler.setPrintJobState(mPrintJob.getId(), PrintJobInfo.STATE_CANCELED, null);
}
super.onPause();
return;
}
if (isFinishing()) {
spooler.updatePrintJobUserConfigurableOptionsNoPersistence(mPrintJob);
switch (mState) {
case STATE_PRINT_CONFIRMED: {
spooler.setPrintJobState(mPrintJob.getId(), PrintJobInfo.STATE_QUEUED, null);
} break;
case STATE_PRINT_COMPLETED: {
spooler.setPrintJobState(mPrintJob.getId(), PrintJobInfo.STATE_COMPLETED, null);
} break;
case STATE_CREATE_FILE_FAILED: {
spooler.setPrintJobState(mPrintJob.getId(), PrintJobInfo.STATE_FAILED,
getString(R.string.print_write_error_message));
} break;
default: {
spooler.setPrintJobState(mPrintJob.getId(), PrintJobInfo.STATE_CANCELED, null);
} break;
}
}
mPrinterAvailabilityDetector.cancel();
mPrinterRegistry.setTrackedPrinter(null);
super.onPause();
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
event.startTracking();
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (mState == STATE_INITIALIZING) {
doFinish();
return true;
}
if (mState == STATE_PRINT_CANCELED || mState == STATE_PRINT_CONFIRMED
|| mState == STATE_PRINT_COMPLETED) {
return true;
}
if (keyCode == KeyEvent.KEYCODE_BACK
&& event.isTracking() && !event.isCanceled()) {
if (mPrintPreviewController != null && mPrintPreviewController.isOptionsOpened()
&& !hasErrors()) {
mPrintPreviewController.closeOptions();
} else {
cancelPrint();
}
return true;
}
return super.onKeyUp(keyCode, event);
}
@Override
public void onRequestContentUpdate() {
if (canUpdateDocument()) {
updateDocument(false);
}
}
@Override
public void onMalformedPdfFile() {
onPrintDocumentError("Cannot print a malformed PDF file");
}
@Override
public void onSecurePdfFile() {
onPrintDocumentError("Cannot print a password protected PDF file");
}
private void onPrintDocumentError(String message) {
mProgressMessageController.cancel();
ensureErrorUiShown(null, PrintErrorFragment.ACTION_RETRY);
setState(STATE_UPDATE_FAILED);
updateOptionsUi();
mPrintedDocument.kill(message);
}
@Override
public void onActionPerformed() {
if (mState == STATE_UPDATE_FAILED
&& canUpdateDocument() && updateDocument(true)) {
ensurePreviewUiShown();
setState(STATE_CONFIGURING);
updateOptionsUi();
}
}
public void onUpdateCanceled() {
if (DEBUG) {
Log.i(LOG_TAG, "onUpdateCanceled()");
}
mProgressMessageController.cancel();
ensurePreviewUiShown();
switch (mState) {
case STATE_PRINT_CONFIRMED: {
requestCreatePdfFileOrFinish();
} break;
case STATE_PRINT_CANCELED: {
doFinish();
} break;
}
}
@Override
public void onUpdateCompleted(RemotePrintDocumentInfo document) {
if (DEBUG) {
Log.i(LOG_TAG, "onUpdateCompleted()");
}
mProgressMessageController.cancel();
ensurePreviewUiShown();
// Update the print job with the info for the written document. The page
// count we get from the remote document is the pages in the document from
// the app perspective but the print job should contain the page count from
// print service perspective which is the pages in the written PDF not the
// pages in the printed document.
PrintDocumentInfo info = document.info;
if (info != null) {
final int pageCount = PageRangeUtils.getNormalizedPageCount(document.writtenPages,
getAdjustedPageCount(info));
PrintDocumentInfo adjustedInfo = new PrintDocumentInfo.Builder(info.getName())
.setContentType(info.getContentType())
.setPageCount(pageCount)
.build();
mPrintJob.setDocumentInfo(adjustedInfo);
mPrintJob.setPages(document.printedPages);
}
switch (mState) {
case STATE_PRINT_CONFIRMED: {
requestCreatePdfFileOrFinish();
} break;
case STATE_PRINT_CANCELED: {
updateOptionsUi();
} break;
default: {
updatePrintPreviewController(document.changed);
setState(STATE_CONFIGURING);
updateOptionsUi();
} break;
}
}
@Override
public void onUpdateFailed(CharSequence error) {
if (DEBUG) {
Log.i(LOG_TAG, "onUpdateFailed()");
}
mProgressMessageController.cancel();
ensureErrorUiShown(error, PrintErrorFragment.ACTION_RETRY);
setState(STATE_UPDATE_FAILED);
updateOptionsUi();
}
@Override
public void onOptionsOpened() {
updateSelectedPagesFromPreview();
}
@Override
public void onOptionsClosed() {
PageRange[] selectedPages = computeSelectedPages();
if (!Arrays.equals(mSelectedPages, selectedPages)) {
mSelectedPages = selectedPages;
// Update preview.
updatePrintPreviewController(false);
}
// Make sure the IME is not on the way of preview as
// the user may have used it to type copies or range.
InputMethodManager imm = (InputMethodManager) getSystemService(
Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(mDestinationSpinner.getWindowToken(), 0);
}
private void updatePrintPreviewController(boolean contentUpdated) {
// If we have not heard from the application, do nothing.
RemotePrintDocumentInfo documentInfo = mPrintedDocument.getDocumentInfo();
if (!documentInfo.laidout) {
return;
}
// Update the preview controller.
mPrintPreviewController.onContentUpdated(contentUpdated,
getAdjustedPageCount(documentInfo.info),
mPrintedDocument.getDocumentInfo().writtenPages,
mSelectedPages, mPrintJob.getAttributes().getMediaSize(),
mPrintJob.getAttributes().getMinMargins());
}
@Override
public boolean canOpenOptions() {
return true;
}
@Override
public boolean canCloseOptions() {
return !hasErrors();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
if (mPrintPreviewController != null) {
mPrintPreviewController.onOrientationChanged();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case ACTIVITY_REQUEST_CREATE_FILE: {
onStartCreateDocumentActivityResult(resultCode, data);
} break;
case ACTIVITY_REQUEST_SELECT_PRINTER: {
onSelectPrinterActivityResult(resultCode, data);
} break;
case ACTIVITY_REQUEST_POPULATE_ADVANCED_PRINT_OPTIONS: {
onAdvancedPrintOptionsActivityResult(resultCode, data);
} break;
}
}
private void startCreateDocumentActivity() {
if (!isResumed()) {
return;
}
PrintDocumentInfo info = mPrintedDocument.getDocumentInfo().info;
if (info == null) {
return;
}
Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
intent.setType("application/pdf");
intent.putExtra(Intent.EXTRA_TITLE, info.getName());
intent.putExtra(DocumentsContract.EXTRA_PACKAGE_NAME, mCallingPackageName);
startActivityForResult(intent, ACTIVITY_REQUEST_CREATE_FILE);
}
private void onStartCreateDocumentActivityResult(int resultCode, Intent data) {
if (resultCode == RESULT_OK && data != null) {
setState(STATE_PRINT_COMPLETED);
updateOptionsUi();
final Uri uri = data.getData();
// Calling finish here does not invoke lifecycle callbacks but we
// update the print job in onPause if finishing, hence post a message.
mDestinationSpinner.post(new Runnable() {
@Override
public void run() {
transformDocumentAndFinish(uri);
}
});
} else if (resultCode == RESULT_CANCELED) {
mState = STATE_CONFIGURING;
updateOptionsUi();
} else {
setState(STATE_CREATE_FILE_FAILED);
updateOptionsUi();
// Calling finish here does not invoke lifecycle callbacks but we
// update the print job in onPause if finishing, hence post a message.
mDestinationSpinner.post(new Runnable() {
@Override
public void run() {
doFinish();
}
});
}
}
private void startSelectPrinterActivity() {
Intent intent = new Intent(this, SelectPrinterActivity.class);
startActivityForResult(intent, ACTIVITY_REQUEST_SELECT_PRINTER);
}
private void onSelectPrinterActivityResult(int resultCode, Intent data) {
if (resultCode == RESULT_OK && data != null) {
PrinterId printerId = data.getParcelableExtra(INTENT_EXTRA_PRINTER_ID);
if (printerId != null) {
mDestinationSpinnerAdapter.ensurePrinterInVisibleAdapterPosition(printerId);
final int index = mDestinationSpinnerAdapter.getPrinterIndex(printerId);
if (index != AdapterView.INVALID_POSITION) {
mDestinationSpinner.setSelection(index);
return;
}
}
}
PrinterId printerId = mCurrentPrinter.getId();
final int index = mDestinationSpinnerAdapter.getPrinterIndex(printerId);
mDestinationSpinner.setSelection(index);
}
private void startAdvancedPrintOptionsActivity(PrinterInfo printer) {
ComponentName serviceName = printer.getId().getServiceName();
String activityName = PrintOptionUtils.getAdvancedOptionsActivityName(this, serviceName);
if (TextUtils.isEmpty(activityName)) {
return;
}
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setComponent(new ComponentName(serviceName.getPackageName(), activityName));
List<ResolveInfo> resolvedActivities = getPackageManager()
.queryIntentActivities(intent, 0);
if (resolvedActivities.isEmpty()) {
return;
}
// The activity is a component name, therefore it is one or none.
if (resolvedActivities.get(0).activityInfo.exported) {
intent.putExtra(PrintService.EXTRA_PRINT_JOB_INFO, mPrintJob);
intent.putExtra(PrintService.EXTRA_PRINTER_INFO, printer);
// This is external activity and may not be there.
try {
startActivityForResult(intent, ACTIVITY_REQUEST_POPULATE_ADVANCED_PRINT_OPTIONS);
} catch (ActivityNotFoundException anfe) {
Log.e(LOG_TAG, "Error starting activity for intent: " + intent, anfe);
}
}
}
private void onAdvancedPrintOptionsActivityResult(int resultCode, Intent data) {
if (resultCode != RESULT_OK || data == null) {
return;
}
PrintJobInfo printJobInfo = data.getParcelableExtra(PrintService.EXTRA_PRINT_JOB_INFO);
if (printJobInfo == null) {
return;
}
// Take the advanced options without interpretation.
mPrintJob.setAdvancedOptions(printJobInfo.getAdvancedOptions());
// Take copies without interpretation as the advanced print dialog
// cannot create a print job info with invalid copies.
mCopiesEditText.setText(String.valueOf(printJobInfo.getCopies()));
mPrintJob.setCopies(printJobInfo.getCopies());
PrintAttributes currAttributes = mPrintJob.getAttributes();
PrintAttributes newAttributes = printJobInfo.getAttributes();
if (newAttributes != null) {
// Take the media size only if the current printer supports is.
MediaSize oldMediaSize = currAttributes.getMediaSize();
MediaSize newMediaSize = newAttributes.getMediaSize();
if (!oldMediaSize.equals(newMediaSize)) {
final int mediaSizeCount = mMediaSizeSpinnerAdapter.getCount();
MediaSize newMediaSizePortrait = newAttributes.getMediaSize().asPortrait();
for (int i = 0; i < mediaSizeCount; i++) {
MediaSize supportedSizePortrait = mMediaSizeSpinnerAdapter.getItem(i)
.value.asPortrait();
if (supportedSizePortrait.equals(newMediaSizePortrait)) {
currAttributes.setMediaSize(newMediaSize);
mMediaSizeSpinner.setSelection(i);
if (currAttributes.getMediaSize().isPortrait()) {
if (mOrientationSpinner.getSelectedItemPosition() != 0) {
mOrientationSpinner.setSelection(0);
}
} else {
if (mOrientationSpinner.getSelectedItemPosition() != 1) {
mOrientationSpinner.setSelection(1);
}
}
break;
}
}
}
// Take the resolution only if the current printer supports is.
Resolution oldResolution = currAttributes.getResolution();
Resolution newResolution = newAttributes.getResolution();
if (!oldResolution.equals(newResolution)) {
PrinterCapabilitiesInfo capabilities = mCurrentPrinter.getCapabilities();
if (capabilities != null) {
List<Resolution> resolutions = capabilities.getResolutions();
final int resolutionCount = resolutions.size();
for (int i = 0; i < resolutionCount; i++) {
Resolution resolution = resolutions.get(i);
if (resolution.equals(newResolution)) {
currAttributes.setResolution(resolution);
break;
}
}
}
}
// Take the color mode only if the current printer supports it.
final int currColorMode = currAttributes.getColorMode();
final int newColorMode = newAttributes.getColorMode();
if (currColorMode != newColorMode) {
final int colorModeCount = mColorModeSpinner.getCount();
for (int i = 0; i < colorModeCount; i++) {
final int supportedColorMode = mColorModeSpinnerAdapter.getItem(i).value;
if (supportedColorMode == newColorMode) {
currAttributes.setColorMode(newColorMode);
mColorModeSpinner.setSelection(i);
break;
}
}
}
}
// Handle selected page changes making sure they are in the doc.
PrintDocumentInfo info = mPrintedDocument.getDocumentInfo().info;
final int pageCount = (info != null) ? getAdjustedPageCount(info) : 0;
PageRange[] pageRanges = printJobInfo.getPages();
if (pageRanges != null && pageCount > 0) {
pageRanges = PageRangeUtils.normalize(pageRanges);
List<PageRange> validatedList = new ArrayList<>();
final int rangeCount = pageRanges.length;
for (int i = 0; i < rangeCount; i++) {
PageRange pageRange = pageRanges[i];
if (pageRange.getEnd() >= pageCount) {
final int rangeStart = pageRange.getStart();
final int rangeEnd = pageCount - 1;
if (rangeStart <= rangeEnd) {
pageRange = new PageRange(rangeStart, rangeEnd);
validatedList.add(pageRange);
}
break;
}
validatedList.add(pageRange);
}
if (!validatedList.isEmpty()) {
PageRange[] validatedArray = new PageRange[validatedList.size()];
validatedList.toArray(validatedArray);
updateSelectedPages(validatedArray, pageCount);
}
}
// Update the content if needed.
if (canUpdateDocument()) {
updateDocument(false);
}
}
private void setState(int state) {
if (isFinalState(mState)) {
if (isFinalState(state)) {
mState = state;
}
} else {
mState = state;
}
}
private static boolean isFinalState(int state) {
return state == STATE_PRINT_CONFIRMED
|| state == STATE_PRINT_CANCELED
|| state == STATE_PRINT_COMPLETED;
}
private void updateSelectedPagesFromPreview() {
PageRange[] selectedPages = mPrintPreviewController.getSelectedPages();
if (!Arrays.equals(mSelectedPages, selectedPages)) {
updateSelectedPages(selectedPages,
getAdjustedPageCount(mPrintedDocument.getDocumentInfo().info));
}
}
private void updateSelectedPages(PageRange[] selectedPages, int pageInDocumentCount) {
if (selectedPages == null || selectedPages.length <= 0) {
return;
}
selectedPages = PageRangeUtils.normalize(selectedPages);
// Handle the case where all pages are specified explicitly
// instead of the *all pages* constant.
if (PageRangeUtils.isAllPages(selectedPages, pageInDocumentCount)) {
selectedPages = new PageRange[] {PageRange.ALL_PAGES};
}
if (Arrays.equals(mSelectedPages, selectedPages)) {
return;
}
mSelectedPages = selectedPages;
mPrintJob.setPages(selectedPages);
if (Arrays.equals(selectedPages, ALL_PAGES_ARRAY)) {
if (mRangeOptionsSpinner.getSelectedItemPosition() != 0) {
mRangeOptionsSpinner.setSelection(0);
mPageRangeEditText.setText("");
}
} else if (selectedPages[0].getStart() >= 0
&& selectedPages[selectedPages.length - 1].getEnd() < pageInDocumentCount) {
if (mRangeOptionsSpinner.getSelectedItemPosition() != 1) {
mRangeOptionsSpinner.setSelection(1);
}
StringBuilder builder = new StringBuilder();
final int pageRangeCount = selectedPages.length;
for (int i = 0; i < pageRangeCount; i++) {
if (builder.length() > 0) {
builder.append(',');
}
final int shownStartPage;
final int shownEndPage;
PageRange pageRange = selectedPages[i];
if (pageRange.equals(PageRange.ALL_PAGES)) {
shownStartPage = 1;
shownEndPage = pageInDocumentCount;
} else {
shownStartPage = pageRange.getStart() + 1;
shownEndPage = pageRange.getEnd() + 1;
}
builder.append(shownStartPage);
if (shownStartPage != shownEndPage) {
builder.append('-');
builder.append(shownEndPage);
}
}
mPageRangeEditText.setText(builder.toString());
}
}
private void ensureProgressUiShown() {
if (isFinishing()) {
return;
}
if (mUiState != UI_STATE_PROGRESS) {
mUiState = UI_STATE_PROGRESS;
mPrintPreviewController.setUiShown(false);
Fragment fragment = PrintProgressFragment.newInstance();
showFragment(fragment);
}
}
private void ensurePreviewUiShown() {
if (isFinishing()) {
return;
}
if (mUiState != UI_STATE_PREVIEW) {
mUiState = UI_STATE_PREVIEW;
mPrintPreviewController.setUiShown(true);
showFragment(null);
}
}
private void ensureErrorUiShown(CharSequence message, int action) {
if (isFinishing()) {
return;
}
if (mUiState != UI_STATE_ERROR) {
mUiState = UI_STATE_ERROR;
mPrintPreviewController.setUiShown(false);
Fragment fragment = PrintErrorFragment.newInstance(message, action);
showFragment(fragment);
}
}
private void showFragment(Fragment newFragment) {
FragmentTransaction transaction = getFragmentManager().beginTransaction();
Fragment oldFragment = getFragmentManager().findFragmentByTag(FRAGMENT_TAG);
if (oldFragment != null) {
transaction.remove(oldFragment);
}
if (newFragment != null) {
transaction.add(R.id.embedded_content_container, newFragment, FRAGMENT_TAG);
}
transaction.commit();
getFragmentManager().executePendingTransactions();
}
private void requestCreatePdfFileOrFinish() {
if (mCurrentPrinter == mDestinationSpinnerAdapter.getPdfPrinter()) {
startCreateDocumentActivity();
} else {
transformDocumentAndFinish(null);
}
}
private void updatePrintAttributesFromCapabilities(PrinterCapabilitiesInfo capabilities) {
PrintAttributes defaults = capabilities.getDefaults();
// Sort the media sizes based on the current locale.
List<MediaSize> sortedMediaSizes = new ArrayList<>(capabilities.getMediaSizes());
Collections.sort(sortedMediaSizes, mMediaSizeComparator);
PrintAttributes attributes = mPrintJob.getAttributes();
// Media size.
MediaSize currMediaSize = attributes.getMediaSize();
if (currMediaSize == null) {
attributes.setMediaSize(defaults.getMediaSize());
} else {
boolean foundCurrentMediaSize = false;
// Try to find the current media size in the capabilities as
// it may be in a different orientation.
MediaSize currMediaSizePortrait = currMediaSize.asPortrait();
final int mediaSizeCount = sortedMediaSizes.size();
for (int i = 0; i < mediaSizeCount; i++) {
MediaSize mediaSize = sortedMediaSizes.get(i);
if (currMediaSizePortrait.equals(mediaSize.asPortrait())) {
attributes.setMediaSize(currMediaSize);
foundCurrentMediaSize = true;
break;
}
}
// If we did not find the current media size fall back to default.
if (!foundCurrentMediaSize) {
attributes.setMediaSize(defaults.getMediaSize());
}
}
// Color mode.
final int colorMode = attributes.getColorMode();
if ((capabilities.getColorModes() & colorMode) == 0) {
attributes.setColorMode(defaults.getColorMode());
}
// Resolution
Resolution resolution = attributes.getResolution();
if (resolution == null || !capabilities.getResolutions().contains(resolution)) {
attributes.setResolution(defaults.getResolution());
}
// Margins.
attributes.setMinMargins(defaults.getMinMargins());
}
private boolean updateDocument(boolean clearLastError) {
if (!clearLastError && mPrintedDocument.hasUpdateError()) {
return false;
}
if (clearLastError && mPrintedDocument.hasUpdateError()) {
mPrintedDocument.clearUpdateError();
}
final boolean preview = mState != STATE_PRINT_CONFIRMED;
final PageRange[] pages;
if (preview) {
pages = mPrintPreviewController.getRequestedPages();
} else {
pages = mPrintPreviewController.getSelectedPages();
}
final boolean willUpdate = mPrintedDocument.update(mPrintJob.getAttributes(),
pages, preview);
if (willUpdate && !mPrintedDocument.hasLaidOutPages()) {
// When the update is done we update the print preview.
mProgressMessageController.post();
return true;
} else if (!willUpdate) {
// Update preview.
updatePrintPreviewController(false);
}
return false;
}
private void addCurrentPrinterToHistory() {
if (mCurrentPrinter != null) {
PrinterId fakePdfPrinterId = mDestinationSpinnerAdapter.getPdfPrinter().getId();
if (!mCurrentPrinter.getId().equals(fakePdfPrinterId)) {
mPrinterRegistry.addHistoricalPrinter(mCurrentPrinter);
}
}
}
private void cancelPrint() {
setState(STATE_PRINT_CANCELED);
updateOptionsUi();
if (mPrintedDocument.isUpdating()) {
mPrintedDocument.cancel();
}
doFinish();
}
private void confirmPrint() {
setState(STATE_PRINT_CONFIRMED);
updateOptionsUi();
addCurrentPrinterToHistory();
PageRange[] selectedPages = computeSelectedPages();
if (!Arrays.equals(mSelectedPages, selectedPages)) {
mSelectedPages = selectedPages;
// Update preview.
updatePrintPreviewController(false);
}
updateSelectedPagesFromPreview();
mPrintPreviewController.closeOptions();
if (canUpdateDocument()) {
updateDocument(false);
}
if (!mPrintedDocument.isUpdating()) {
requestCreatePdfFileOrFinish();
}
}
private void bindUi() {
// Summary
mSummaryContainer = findViewById(R.id.summary_content);
mSummaryCopies = (TextView) findViewById(R.id.copies_count_summary);
mSummaryPaperSize = (TextView) findViewById(R.id.paper_size_summary);
// Options container
mOptionsContent = (PrintContentView) findViewById(R.id.options_content);
mOptionsContent.setOptionsStateChangeListener(this);
mOptionsContent.setOpenOptionsController(this);
OnItemSelectedListener itemSelectedListener = new MyOnItemSelectedListener();
OnClickListener clickListener = new MyClickListener();
// Copies
mCopiesEditText = (EditText) findViewById(R.id.copies_edittext);
mCopiesEditText.setOnFocusChangeListener(mSelectAllOnFocusListener);
mCopiesEditText.setText(MIN_COPIES_STRING);
mCopiesEditText.setSelection(mCopiesEditText.getText().length());
mCopiesEditText.addTextChangedListener(new EditTextWatcher());
// Destination.
mDestinationSpinnerAdapter.registerDataSetObserver(new PrintersObserver());
mDestinationSpinner = (Spinner) findViewById(R.id.destination_spinner);
mDestinationSpinner.setAdapter(mDestinationSpinnerAdapter);
mDestinationSpinner.setOnItemSelectedListener(itemSelectedListener);
// Media size.
mMediaSizeSpinnerAdapter = new ArrayAdapter<>(
this, android.R.layout.simple_spinner_dropdown_item, android.R.id.text1);
mMediaSizeSpinner = (Spinner) findViewById(R.id.paper_size_spinner);
mMediaSizeSpinner.setAdapter(mMediaSizeSpinnerAdapter);
mMediaSizeSpinner.setOnItemSelectedListener(itemSelectedListener);
// Color mode.
mColorModeSpinnerAdapter = new ArrayAdapter<>(
this, android.R.layout.simple_spinner_dropdown_item, android.R.id.text1);
mColorModeSpinner = (Spinner) findViewById(R.id.color_spinner);
mColorModeSpinner.setAdapter(mColorModeSpinnerAdapter);
mColorModeSpinner.setOnItemSelectedListener(itemSelectedListener);
// Orientation
mOrientationSpinnerAdapter = new ArrayAdapter<>(
this, android.R.layout.simple_spinner_dropdown_item, android.R.id.text1);
String[] orientationLabels = getResources().getStringArray(
R.array.orientation_labels);
mOrientationSpinnerAdapter.add(new SpinnerItem<>(
ORIENTATION_PORTRAIT, orientationLabels[0]));
mOrientationSpinnerAdapter.add(new SpinnerItem<>(
ORIENTATION_LANDSCAPE, orientationLabels[1]));
mOrientationSpinner = (Spinner) findViewById(R.id.orientation_spinner);
mOrientationSpinner.setAdapter(mOrientationSpinnerAdapter);
mOrientationSpinner.setOnItemSelectedListener(itemSelectedListener);
// Range options
ArrayAdapter<SpinnerItem<Integer>> rangeOptionsSpinnerAdapter = new ArrayAdapter<>(
this, android.R.layout.simple_spinner_dropdown_item, android.R.id.text1);
mRangeOptionsSpinner = (Spinner) findViewById(R.id.range_options_spinner);
mRangeOptionsSpinner.setAdapter(rangeOptionsSpinnerAdapter);
mRangeOptionsSpinner.setOnItemSelectedListener(itemSelectedListener);
updatePageRangeOptions(PrintDocumentInfo.PAGE_COUNT_UNKNOWN);
// Page range
mPageRangeTitle = (TextView) findViewById(R.id.page_range_title);
mPageRangeEditText = (EditText) findViewById(R.id.page_range_edittext);
mPageRangeEditText.setOnFocusChangeListener(mSelectAllOnFocusListener);
mPageRangeEditText.addTextChangedListener(new RangeTextWatcher());
// Advanced options button.
mMoreOptionsButton = (Button) findViewById(R.id.more_options_button);
mMoreOptionsButton.setOnClickListener(clickListener);
// Print button
mPrintButton = (ImageView) findViewById(R.id.print_button);
mPrintButton.setOnClickListener(clickListener);
}
private final class MyClickListener implements OnClickListener {
@Override
public void onClick(View view) {
if (view == mPrintButton) {
if (mCurrentPrinter != null) {
confirmPrint();
} else {
cancelPrint();
}
} else if (view == mMoreOptionsButton) {
if (mCurrentPrinter != null) {
startAdvancedPrintOptionsActivity(mCurrentPrinter);
}
}
}
}
private static boolean canPrint(PrinterInfo printer) {
return printer.getCapabilities() != null
&& printer.getStatus() != PrinterInfo.STATUS_UNAVAILABLE;
}
void updateOptionsUi() {
// Always update the summary.
updateSummary();
if (mState == STATE_PRINT_CONFIRMED
|| mState == STATE_PRINT_COMPLETED
|| mState == STATE_PRINT_CANCELED
|| mState == STATE_UPDATE_FAILED
|| mState == STATE_CREATE_FILE_FAILED
|| mState == STATE_PRINTER_UNAVAILABLE
|| mState == STATE_UPDATE_SLOW) {
if (mState != STATE_PRINTER_UNAVAILABLE) {
mDestinationSpinner.setEnabled(false);
}
mCopiesEditText.setEnabled(false);
mCopiesEditText.setFocusable(false);
mMediaSizeSpinner.setEnabled(false);
mColorModeSpinner.setEnabled(false);
mOrientationSpinner.setEnabled(false);
mRangeOptionsSpinner.setEnabled(false);
mPageRangeEditText.setEnabled(false);
mPrintButton.setVisibility(View.GONE);
mMoreOptionsButton.setEnabled(false);
return;
}
// If no current printer, or it has no capabilities, or it is not
// available, we disable all print options except the destination.
if (mCurrentPrinter == null || !canPrint(mCurrentPrinter)) {
mCopiesEditText.setEnabled(false);
mCopiesEditText.setFocusable(false);
mMediaSizeSpinner.setEnabled(false);
mColorModeSpinner.setEnabled(false);
mOrientationSpinner.setEnabled(false);
mRangeOptionsSpinner.setEnabled(false);
mPageRangeEditText.setEnabled(false);
mPrintButton.setVisibility(View.GONE);
mMoreOptionsButton.setEnabled(false);
return;
}
PrinterCapabilitiesInfo capabilities = mCurrentPrinter.getCapabilities();
PrintAttributes defaultAttributes = capabilities.getDefaults();
// Destination.
mDestinationSpinner.setEnabled(true);
// Media size.
mMediaSizeSpinner.setEnabled(true);
List<MediaSize> mediaSizes = new ArrayList<>(capabilities.getMediaSizes());
// Sort the media sizes based on the current locale.
Collections.sort(mediaSizes, mMediaSizeComparator);
PrintAttributes attributes = mPrintJob.getAttributes();
// If the media sizes changed, we update the adapter and the spinner.
boolean mediaSizesChanged = false;
final int mediaSizeCount = mediaSizes.size();
if (mediaSizeCount != mMediaSizeSpinnerAdapter.getCount()) {
mediaSizesChanged = true;
} else {
for (int i = 0; i < mediaSizeCount; i++) {
if (!mediaSizes.get(i).equals(mMediaSizeSpinnerAdapter.getItem(i).value)) {
mediaSizesChanged = true;
break;
}
}
}
if (mediaSizesChanged) {
// Remember the old media size to try selecting it again.
int oldMediaSizeNewIndex = AdapterView.INVALID_POSITION;
MediaSize oldMediaSize = attributes.getMediaSize();
// Rebuild the adapter data.
mMediaSizeSpinnerAdapter.clear();
for (int i = 0; i < mediaSizeCount; i++) {
MediaSize mediaSize = mediaSizes.get(i);
if (oldMediaSize != null
&& mediaSize.asPortrait().equals(oldMediaSize.asPortrait())) {
// Update the index of the old selection.
oldMediaSizeNewIndex = i;
}
mMediaSizeSpinnerAdapter.add(new SpinnerItem<>(
mediaSize, mediaSize.getLabel(getPackageManager())));
}
if (oldMediaSizeNewIndex != AdapterView.INVALID_POSITION) {
// Select the old media size - nothing really changed.
if (mMediaSizeSpinner.getSelectedItemPosition() != oldMediaSizeNewIndex) {
mMediaSizeSpinner.setSelection(oldMediaSizeNewIndex);
}
} else {
// Select the first or the default.
final int mediaSizeIndex = Math.max(mediaSizes.indexOf(
defaultAttributes.getMediaSize()), 0);
if (mMediaSizeSpinner.getSelectedItemPosition() != mediaSizeIndex) {
mMediaSizeSpinner.setSelection(mediaSizeIndex);
}
// Respect the orientation of the old selection.
if (oldMediaSize != null) {
if (oldMediaSize.isPortrait()) {
attributes.setMediaSize(mMediaSizeSpinnerAdapter
.getItem(mediaSizeIndex).value.asPortrait());
} else {
attributes.setMediaSize(mMediaSizeSpinnerAdapter
.getItem(mediaSizeIndex).value.asLandscape());
}
}
}
}
// Color mode.
mColorModeSpinner.setEnabled(true);
final int colorModes = capabilities.getColorModes();
// If the color modes changed, we update the adapter and the spinner.
boolean colorModesChanged = false;
if (Integer.bitCount(colorModes) != mColorModeSpinnerAdapter.getCount()) {
colorModesChanged = true;
} else {
int remainingColorModes = colorModes;
int adapterIndex = 0;
while (remainingColorModes != 0) {
final int colorBitOffset = Integer.numberOfTrailingZeros(remainingColorModes);
final int colorMode = 1 << colorBitOffset;
remainingColorModes &= ~colorMode;
if (colorMode != mColorModeSpinnerAdapter.getItem(adapterIndex).value) {
colorModesChanged = true;
break;
}
adapterIndex++;
}
}
if (colorModesChanged) {
// Remember the old color mode to try selecting it again.
int oldColorModeNewIndex = AdapterView.INVALID_POSITION;
final int oldColorMode = attributes.getColorMode();
// Rebuild the adapter data.
mColorModeSpinnerAdapter.clear();
String[] colorModeLabels = getResources().getStringArray(R.array.color_mode_labels);
int remainingColorModes = colorModes;
while (remainingColorModes != 0) {
final int colorBitOffset = Integer.numberOfTrailingZeros(remainingColorModes);
final int colorMode = 1 << colorBitOffset;
if (colorMode == oldColorMode) {
// Update the index of the old selection.
oldColorModeNewIndex = colorBitOffset;
}
remainingColorModes &= ~colorMode;
mColorModeSpinnerAdapter.add(new SpinnerItem<>(colorMode,
colorModeLabels[colorBitOffset]));
}
if (oldColorModeNewIndex != AdapterView.INVALID_POSITION) {
// Select the old color mode - nothing really changed.
if (mColorModeSpinner.getSelectedItemPosition() != oldColorModeNewIndex) {
mColorModeSpinner.setSelection(oldColorModeNewIndex);
}
} else {
// Select the default.
final int selectedColorMode = colorModes & defaultAttributes.getColorMode();
final int itemCount = mColorModeSpinnerAdapter.getCount();
for (int i = 0; i < itemCount; i++) {
SpinnerItem<Integer> item = mColorModeSpinnerAdapter.getItem(i);
if (selectedColorMode == item.value) {
if (mColorModeSpinner.getSelectedItemPosition() != i) {
mColorModeSpinner.setSelection(i);
}
attributes.setColorMode(selectedColorMode);
}
}
}
}
// Orientation
mOrientationSpinner.setEnabled(true);
MediaSize mediaSize = attributes.getMediaSize();
if (mediaSize != null) {
if (mediaSize.isPortrait()
&& mOrientationSpinner.getSelectedItemPosition() != 0) {
mOrientationSpinner.setSelection(0);
} else if (!mediaSize.isPortrait()
&& mOrientationSpinner.getSelectedItemPosition() != 1) {
mOrientationSpinner.setSelection(1);
}
}
// Range options
PrintDocumentInfo info = mPrintedDocument.getDocumentInfo().info;
final int pageCount = getAdjustedPageCount(info);
if (info != null && pageCount > 0) {
if (pageCount == 1) {
mRangeOptionsSpinner.setEnabled(false);
} else {
mRangeOptionsSpinner.setEnabled(true);
if (mRangeOptionsSpinner.getSelectedItemPosition() > 0) {
if (!mPageRangeEditText.isEnabled()) {
mPageRangeEditText.setEnabled(true);
mPageRangeEditText.setVisibility(View.VISIBLE);
mPageRangeTitle.setVisibility(View.VISIBLE);
mPageRangeEditText.requestFocus();
InputMethodManager imm = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(mPageRangeEditText, 0);
}
} else {
mPageRangeEditText.setEnabled(false);
mPageRangeEditText.setVisibility(View.INVISIBLE);
mPageRangeTitle.setVisibility(View.INVISIBLE);
}
}
} else {
if (mRangeOptionsSpinner.getSelectedItemPosition() != 0) {
mRangeOptionsSpinner.setSelection(0);
mPageRangeEditText.setText("");
}
mRangeOptionsSpinner.setEnabled(false);
mPageRangeEditText.setEnabled(false);
mPageRangeEditText.setVisibility(View.INVISIBLE);
mPageRangeTitle.setVisibility(View.INVISIBLE);
}
final int newPageCount = getAdjustedPageCount(info);
if (newPageCount != mCurrentPageCount) {
mCurrentPageCount = newPageCount;
updatePageRangeOptions(newPageCount);
}
// Advanced print options
ComponentName serviceName = mCurrentPrinter.getId().getServiceName();
if (!TextUtils.isEmpty(PrintOptionUtils.getAdvancedOptionsActivityName(
this, serviceName))) {
mMoreOptionsButton.setVisibility(View.VISIBLE);
mMoreOptionsButton.setEnabled(true);
} else {
mMoreOptionsButton.setVisibility(View.GONE);
mMoreOptionsButton.setEnabled(false);
}
// Print
if (mDestinationSpinnerAdapter.getPdfPrinter() != mCurrentPrinter) {
mPrintButton.setImageResource(com.android.internal.R.drawable.ic_print);
mPrintButton.setContentDescription(getString(R.string.print_button));
} else {
mPrintButton.setImageResource(R.drawable.ic_menu_savetopdf);
mPrintButton.setContentDescription(getString(R.string.savetopdf_button));
}
if (!mPrintedDocument.getDocumentInfo().laidout
||(mRangeOptionsSpinner.getSelectedItemPosition() == 1
&& (TextUtils.isEmpty(mPageRangeEditText.getText()) || hasErrors()))
|| (mRangeOptionsSpinner.getSelectedItemPosition() == 0
&& (mPrintedDocument.getDocumentInfo() == null || hasErrors()))) {
mPrintButton.setVisibility(View.GONE);
} else {
mPrintButton.setVisibility(View.VISIBLE);
}
// Copies
if (mDestinationSpinnerAdapter.getPdfPrinter() != mCurrentPrinter) {
mCopiesEditText.setEnabled(true);
mCopiesEditText.setFocusableInTouchMode(true);
} else {
CharSequence text = mCopiesEditText.getText();
if (TextUtils.isEmpty(text) || !MIN_COPIES_STRING.equals(text.toString())) {
mCopiesEditText.setText(MIN_COPIES_STRING);
}
mCopiesEditText.setEnabled(false);
mCopiesEditText.setFocusable(false);
}
if (mCopiesEditText.getError() == null
&& TextUtils.isEmpty(mCopiesEditText.getText())) {
mCopiesEditText.setText(MIN_COPIES_STRING);
mCopiesEditText.requestFocus();
}
}
private void updateSummary() {
CharSequence copiesText = null;
CharSequence mediaSizeText = null;
if (!TextUtils.isEmpty(mCopiesEditText.getText())) {
copiesText = mCopiesEditText.getText();
mSummaryCopies.setText(copiesText);
}
final int selectedMediaIndex = mMediaSizeSpinner.getSelectedItemPosition();
if (selectedMediaIndex >= 0) {
SpinnerItem<MediaSize> mediaItem = mMediaSizeSpinnerAdapter.getItem(selectedMediaIndex);
mediaSizeText = mediaItem.label;
mSummaryPaperSize.setText(mediaSizeText);
}
if (!TextUtils.isEmpty(copiesText) && !TextUtils.isEmpty(mediaSizeText)) {
String summaryText = getString(R.string.summary_template, copiesText, mediaSizeText);
mSummaryContainer.setContentDescription(summaryText);
}
}
private void updatePageRangeOptions(int pageCount) {
ArrayAdapter<SpinnerItem<Integer>> rangeOptionsSpinnerAdapter =
(ArrayAdapter) mRangeOptionsSpinner.getAdapter();
rangeOptionsSpinnerAdapter.clear();
final int[] rangeOptionsValues = getResources().getIntArray(
R.array.page_options_values);
String pageCountLabel = (pageCount > 0) ? String.valueOf(pageCount) : "";
String[] rangeOptionsLabels = new String[] {
getString(R.string.template_all_pages, pageCountLabel),
getString(R.string.template_page_range, pageCountLabel)
};
final int rangeOptionsCount = rangeOptionsLabels.length;
for (int i = 0; i < rangeOptionsCount; i++) {
rangeOptionsSpinnerAdapter.add(new SpinnerItem<>(
rangeOptionsValues[i], rangeOptionsLabels[i]));
}
}
private PageRange[] computeSelectedPages() {
if (hasErrors()) {
return null;
}
if (mRangeOptionsSpinner.getSelectedItemPosition() > 0) {
List<PageRange> pageRanges = new ArrayList<>();
mStringCommaSplitter.setString(mPageRangeEditText.getText().toString());
while (mStringCommaSplitter.hasNext()) {
String range = mStringCommaSplitter.next().trim();
if (TextUtils.isEmpty(range)) {
continue;
}
final int dashIndex = range.indexOf('-');
final int fromIndex;
final int toIndex;
if (dashIndex > 0) {
fromIndex = Integer.parseInt(range.substring(0, dashIndex).trim()) - 1;
// It is possible that the dash is at the end since the input
// verification can has to allow the user to keep entering if
// this would lead to a valid input. So we handle this.
if (dashIndex < range.length() - 1) {
String fromString = range.substring(dashIndex + 1, range.length()).trim();
toIndex = Integer.parseInt(fromString) - 1;
} else {
toIndex = fromIndex;
}
} else {
fromIndex = toIndex = Integer.parseInt(range) - 1;
}
PageRange pageRange = new PageRange(Math.min(fromIndex, toIndex),
Math.max(fromIndex, toIndex));
pageRanges.add(pageRange);
}
PageRange[] pageRangesArray = new PageRange[pageRanges.size()];
pageRanges.toArray(pageRangesArray);
return PageRangeUtils.normalize(pageRangesArray);
}
return ALL_PAGES_ARRAY;
}
private int getAdjustedPageCount(PrintDocumentInfo info) {
if (info != null) {
final int pageCount = info.getPageCount();
if (pageCount != PrintDocumentInfo.PAGE_COUNT_UNKNOWN) {
return pageCount;
}
}
// If the app does not tell us how many pages are in the
// doc we ask for all pages and use the document page count.
return mPrintPreviewController.getFilePageCount();
}
private boolean hasErrors() {
return (mCopiesEditText.getError() != null)
|| (mPageRangeEditText.getVisibility() == View.VISIBLE
&& mPageRangeEditText.getError() != null);
}
public void onPrinterAvailable(PrinterInfo printer) {
if (mCurrentPrinter.equals(printer)) {
setState(STATE_CONFIGURING);
if (canUpdateDocument()) {
updateDocument(false);
}
ensurePreviewUiShown();
updateOptionsUi();
}
}
public void onPrinterUnavailable(PrinterInfo printer) {
if (mCurrentPrinter.getId().equals(printer.getId())) {
setState(STATE_PRINTER_UNAVAILABLE);
if (mPrintedDocument.isUpdating()) {
mPrintedDocument.cancel();
}
ensureErrorUiShown(getString(R.string.print_error_printer_unavailable),
PrintErrorFragment.ACTION_NONE);
updateOptionsUi();
}
}
private boolean canUpdateDocument() {
if (mPrintedDocument.isDestroyed()) {
return false;
}
if (hasErrors()) {
return false;
}
PrintAttributes attributes = mPrintJob.getAttributes();
final int colorMode = attributes.getColorMode();
if (colorMode != PrintAttributes.COLOR_MODE_COLOR
&& colorMode != PrintAttributes.COLOR_MODE_MONOCHROME) {
return false;
}
if (attributes.getMediaSize() == null) {
return false;
}
if (attributes.getMinMargins() == null) {
return false;
}
if (attributes.getResolution() == null) {
return false;
}
if (mCurrentPrinter == null) {
return false;
}
PrinterCapabilitiesInfo capabilities = mCurrentPrinter.getCapabilities();
if (capabilities == null) {
return false;
}
if (mCurrentPrinter.getStatus() == PrinterInfo.STATUS_UNAVAILABLE) {
return false;
}
return true;
}
private void transformDocumentAndFinish(final Uri writeToUri) {
// If saving to PDF, apply the attibutes as we are acting as a print service.
PrintAttributes attributes = mDestinationSpinnerAdapter.getPdfPrinter() == mCurrentPrinter
? mPrintJob.getAttributes() : null;
new DocumentTransformer(this, mPrintJob, mFileProvider, attributes, new Runnable() {
@Override
public void run() {
if (writeToUri != null) {
mPrintedDocument.writeContent(getContentResolver(), writeToUri);
}
doFinish();
}
}).transform();
}
private void doFinish() {
if (mState != STATE_INITIALIZING) {
mProgressMessageController.cancel();
mPrinterRegistry.setTrackedPrinter(null);
mSpoolerProvider.destroy();
mPrintedDocument.finish();
mPrintedDocument.destroy();
mPrintPreviewController.destroy(new Runnable() {
@Override
public void run() {
finish();
}
});
} else {
finish();
}
}
private final class SpinnerItem<T> {
final T value;
final CharSequence label;
public SpinnerItem(T value, CharSequence label) {
this.value = value;
this.label = label;
}
public String toString() {
return label.toString();
}
}
private final class PrinterAvailabilityDetector implements Runnable {
private static final long UNAVAILABLE_TIMEOUT_MILLIS = 10000; // 10sec
private boolean mPosted;
private boolean mPrinterUnavailable;
private PrinterInfo mPrinter;
public void updatePrinter(PrinterInfo printer) {
if (printer.equals(mDestinationSpinnerAdapter.getPdfPrinter())) {
return;
}
final boolean available = printer.getStatus() != PrinterInfo.STATUS_UNAVAILABLE
&& printer.getCapabilities() != null;
final boolean notifyIfAvailable;
if (mPrinter == null || !mPrinter.getId().equals(printer.getId())) {
notifyIfAvailable = true;
unpostIfNeeded();
mPrinterUnavailable = false;
mPrinter = new PrinterInfo.Builder(printer).build();
} else {
notifyIfAvailable =
(mPrinter.getStatus() == PrinterInfo.STATUS_UNAVAILABLE
&& printer.getStatus() != PrinterInfo.STATUS_UNAVAILABLE)
|| (mPrinter.getCapabilities() == null
&& printer.getCapabilities() != null);
mPrinter.copyFrom(printer);
}
if (available) {
unpostIfNeeded();
mPrinterUnavailable = false;
if (notifyIfAvailable) {
onPrinterAvailable(mPrinter);
}
} else {
if (!mPrinterUnavailable) {
postIfNeeded();
}
}
}
public void cancel() {
unpostIfNeeded();
mPrinterUnavailable = false;
}
private void postIfNeeded() {
if (!mPosted) {
mPosted = true;
mDestinationSpinner.postDelayed(this, UNAVAILABLE_TIMEOUT_MILLIS);
}
}
private void unpostIfNeeded() {
if (mPosted) {
mPosted = false;
mDestinationSpinner.removeCallbacks(this);
}
}
@Override
public void run() {
mPosted = false;
mPrinterUnavailable = true;
onPrinterUnavailable(mPrinter);
}
}
private static final class PrinterHolder {
PrinterInfo printer;
boolean removed;
public PrinterHolder(PrinterInfo printer) {
this.printer = printer;
}
}
private final class DestinationAdapter extends BaseAdapter
implements PrinterRegistry.OnPrintersChangeListener {
private final List<PrinterHolder> mPrinterHolders = new ArrayList<>();
private final PrinterHolder mFakePdfPrinterHolder;
private boolean mHistoricalPrintersLoaded;
public DestinationAdapter() {
mHistoricalPrintersLoaded = mPrinterRegistry.areHistoricalPrintersLoaded();
if (mHistoricalPrintersLoaded) {
addPrinters(mPrinterHolders, mPrinterRegistry.getPrinters());
}
mPrinterRegistry.setOnPrintersChangeListener(this);
mFakePdfPrinterHolder = new PrinterHolder(createFakePdfPrinter());
}
public PrinterInfo getPdfPrinter() {
return mFakePdfPrinterHolder.printer;
}
public int getPrinterIndex(PrinterId printerId) {
for (int i = 0; i < getCount(); i++) {
PrinterHolder printerHolder = (PrinterHolder) getItem(i);
if (printerHolder != null && !printerHolder.removed
&& printerHolder.printer.getId().equals(printerId)) {
return i;
}
}
return AdapterView.INVALID_POSITION;
}
public void ensurePrinterInVisibleAdapterPosition(PrinterId printerId) {
final int printerCount = mPrinterHolders.size();
for (int i = 0; i < printerCount; i++) {
PrinterHolder printerHolder = mPrinterHolders.get(i);
if (printerHolder.printer.getId().equals(printerId)) {
// If already in the list - do nothing.
if (i < getCount() - 2) {
return;
}
// Else replace the last one (two items are not printers).
final int lastPrinterIndex = getCount() - 3;
mPrinterHolders.set(i, mPrinterHolders.get(lastPrinterIndex));
mPrinterHolders.set(lastPrinterIndex, printerHolder);
notifyDataSetChanged();
return;
}
}
}
@Override
public int getCount() {
if (mHistoricalPrintersLoaded) {
return Math.min(mPrinterHolders.size() + 2, DEST_ADAPTER_MAX_ITEM_COUNT);
}
return 0;
}
@Override
public boolean isEnabled(int position) {
Object item = getItem(position);
if (item instanceof PrinterHolder) {
PrinterHolder printerHolder = (PrinterHolder) item;
return !printerHolder.removed
&& printerHolder.printer.getStatus() != PrinterInfo.STATUS_UNAVAILABLE;
}
return true;
}
@Override
public Object getItem(int position) {
if (mPrinterHolders.isEmpty()) {
if (position == 0) {
return mFakePdfPrinterHolder;
}
} else {
if (position < 1) {
return mPrinterHolders.get(position);
}
if (position == 1) {
return mFakePdfPrinterHolder;
}
if (position < getCount() - 1) {
return mPrinterHolders.get(position - 1);
}
}
return null;
}
@Override
public long getItemId(int position) {
if (mPrinterHolders.isEmpty()) {
if (position == 0) {
return DEST_ADAPTER_ITEM_ID_SAVE_AS_PDF;
} else if (position == 1) {
return DEST_ADAPTER_ITEM_ID_ALL_PRINTERS;
}
} else {
if (position == 1) {
return DEST_ADAPTER_ITEM_ID_SAVE_AS_PDF;
}
if (position == getCount() - 1) {
return DEST_ADAPTER_ITEM_ID_ALL_PRINTERS;
}
}
return position;
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
View view = getView(position, convertView, parent);
view.setEnabled(isEnabled(position));
return view;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = getLayoutInflater().inflate(
R.layout.printer_dropdown_item, parent, false);
}
CharSequence title = null;
CharSequence subtitle = null;
Drawable icon = null;
if (mPrinterHolders.isEmpty()) {
if (position == 0 && getPdfPrinter() != null) {
PrinterHolder printerHolder = (PrinterHolder) getItem(position);
title = printerHolder.printer.getName();
icon = getResources().getDrawable(R.drawable.ic_menu_savetopdf);
} else if (position == 1) {
title = getString(R.string.all_printers);
}
} else {
if (position == 1 && getPdfPrinter() != null) {
PrinterHolder printerHolder = (PrinterHolder) getItem(position);
title = printerHolder.printer.getName();
icon = getResources().getDrawable(R.drawable.ic_menu_savetopdf);
} else if (position == getCount() - 1) {
title = getString(R.string.all_printers);
} else {
PrinterHolder printerHolder = (PrinterHolder) getItem(position);
title = printerHolder.printer.getName();
try {
PackageInfo packageInfo = getPackageManager().getPackageInfo(
printerHolder.printer.getId().getServiceName().getPackageName(), 0);
subtitle = packageInfo.applicationInfo.loadLabel(getPackageManager());
icon = packageInfo.applicationInfo.loadIcon(getPackageManager());
} catch (NameNotFoundException nnfe) {
/* ignore */
}
}
}
TextView titleView = (TextView) convertView.findViewById(R.id.title);
titleView.setText(title);
TextView subtitleView = (TextView) convertView.findViewById(R.id.subtitle);
if (!TextUtils.isEmpty(subtitle)) {
subtitleView.setText(subtitle);
subtitleView.setVisibility(View.VISIBLE);
} else {
subtitleView.setText(null);
subtitleView.setVisibility(View.GONE);
}
ImageView iconView = (ImageView) convertView.findViewById(R.id.icon);
if (icon != null) {
iconView.setImageDrawable(icon);
iconView.setVisibility(View.VISIBLE);
} else {
iconView.setVisibility(View.INVISIBLE);
}
return convertView;
}
@Override
public void onPrintersChanged(List<PrinterInfo> printers) {
// We rearrange the printers if the user selects a printer
// not shown in the initial short list. Therefore, we have
// to keep the printer order.
// Check if historical printers are loaded as this adapter is open
// for busyness only if they are. This member is updated here and
// when the adapter is created because the historical printers may
// be loaded before or after the adapter is created.
mHistoricalPrintersLoaded = mPrinterRegistry.areHistoricalPrintersLoaded();
// No old printers - do not bother keeping their position.
if (mPrinterHolders.isEmpty()) {
addPrinters(mPrinterHolders, printers);
notifyDataSetChanged();
return;
}
// Add the new printers to a map.
ArrayMap<PrinterId, PrinterInfo> newPrintersMap = new ArrayMap<>();
final int printerCount = printers.size();
for (int i = 0; i < printerCount; i++) {
PrinterInfo printer = printers.get(i);
newPrintersMap.put(printer.getId(), printer);
}
List<PrinterHolder> newPrinterHolders = new ArrayList<>();
// Update printers we already have which are either updated or removed.
// We do not remove printers if the currently selected printer is removed
// to prevent the user printing to a wrong printer.
final int oldPrinterCount = mPrinterHolders.size();
for (int i = 0; i < oldPrinterCount; i++) {
PrinterHolder printerHolder = mPrinterHolders.get(i);
PrinterId oldPrinterId = printerHolder.printer.getId();
PrinterInfo updatedPrinter = newPrintersMap.remove(oldPrinterId);
if (updatedPrinter != null) {
printerHolder.printer = updatedPrinter;
} else {
printerHolder.removed = true;
}
newPrinterHolders.add(printerHolder);
}
// Add the rest of the new printers, i.e. what is left.
addPrinters(newPrinterHolders, newPrintersMap.values());
mPrinterHolders.clear();
mPrinterHolders.addAll(newPrinterHolders);
notifyDataSetChanged();
}
@Override
public void onPrintersInvalid() {
mPrinterHolders.clear();
notifyDataSetInvalidated();
}
public PrinterHolder getPrinterHolder(PrinterId printerId) {
final int itemCount = getCount();
for (int i = 0; i < itemCount; i++) {
Object item = getItem(i);
if (item instanceof PrinterHolder) {
PrinterHolder printerHolder = (PrinterHolder) item;
if (printerId.equals(printerHolder.printer.getId())) {
return printerHolder;
}
}
}
return null;
}
public void pruneRemovedPrinters() {
final int holderCounts = mPrinterHolders.size();
for (int i = holderCounts - 1; i >= 0; i--) {
PrinterHolder printerHolder = mPrinterHolders.get(i);
if (printerHolder.removed) {
mPrinterHolders.remove(i);
}
}
}
private void addPrinters(List<PrinterHolder> list, Collection<PrinterInfo> printers) {
for (PrinterInfo printer : printers) {
PrinterHolder printerHolder = new PrinterHolder(printer);
list.add(printerHolder);
}
}
private PrinterInfo createFakePdfPrinter() {
MediaSize defaultMediaSize = MediaSizeUtils.getDefault(PrintActivity.this);
PrinterId printerId = new PrinterId(getComponentName(), "PDF printer");
PrinterCapabilitiesInfo.Builder builder =
new PrinterCapabilitiesInfo.Builder(printerId);
String[] mediaSizeIds = getResources().getStringArray(R.array.pdf_printer_media_sizes);
final int mediaSizeIdCount = mediaSizeIds.length;
for (int i = 0; i < mediaSizeIdCount; i++) {
String id = mediaSizeIds[i];
MediaSize mediaSize = MediaSize.getStandardMediaSizeById(id);
builder.addMediaSize(mediaSize, mediaSize.equals(defaultMediaSize));
}
builder.addResolution(new Resolution("PDF resolution", "PDF resolution", 300, 300),
true);
builder.setColorModes(PrintAttributes.COLOR_MODE_COLOR
| PrintAttributes.COLOR_MODE_MONOCHROME, PrintAttributes.COLOR_MODE_COLOR);
return new PrinterInfo.Builder(printerId, getString(R.string.save_as_pdf),
PrinterInfo.STATUS_IDLE).setCapabilities(builder.build()).build();
}
}
private final class PrintersObserver extends DataSetObserver {
@Override
public void onChanged() {
PrinterInfo oldPrinterState = mCurrentPrinter;
if (oldPrinterState == null) {
return;
}
PrinterHolder printerHolder = mDestinationSpinnerAdapter.getPrinterHolder(
oldPrinterState.getId());
if (printerHolder == null) {
return;
}
PrinterInfo newPrinterState = printerHolder.printer;
if (!printerHolder.removed) {
mDestinationSpinnerAdapter.pruneRemovedPrinters();
} else {
onPrinterUnavailable(newPrinterState);
}
if (oldPrinterState.equals(newPrinterState)) {
return;
}
PrinterCapabilitiesInfo oldCapab = oldPrinterState.getCapabilities();
PrinterCapabilitiesInfo newCapab = newPrinterState.getCapabilities();
final boolean hasCapab = newCapab != null;
final boolean gotCapab = oldCapab == null && newCapab != null;
final boolean lostCapab = oldCapab != null && newCapab == null;
final boolean capabChanged = capabilitiesChanged(oldCapab, newCapab);
final int oldStatus = oldPrinterState.getStatus();
final int newStatus = newPrinterState.getStatus();
final boolean isActive = newStatus != PrinterInfo.STATUS_UNAVAILABLE;
final boolean becameActive = (oldStatus == PrinterInfo.STATUS_UNAVAILABLE
&& oldStatus != newStatus);
final boolean becameInactive = (newStatus == PrinterInfo.STATUS_UNAVAILABLE
&& oldStatus != newStatus);
mPrinterAvailabilityDetector.updatePrinter(newPrinterState);
oldPrinterState.copyFrom(newPrinterState);
if ((isActive && gotCapab) || (becameActive && hasCapab)) {
if (hasCapab && capabChanged) {
updatePrintAttributesFromCapabilities(newCapab);
updatePrintPreviewController(false);
}
onPrinterAvailable(newPrinterState);
} else if ((becameInactive && hasCapab) || (isActive && lostCapab)) {
onPrinterUnavailable(newPrinterState);
}
final boolean updateNeeded = ((capabChanged && hasCapab && isActive)
|| (becameActive && hasCapab) || (isActive && gotCapab));
if (updateNeeded && canUpdateDocument()) {
updateDocument(false);
}
updateOptionsUi();
}
private boolean capabilitiesChanged(PrinterCapabilitiesInfo oldCapabilities,
PrinterCapabilitiesInfo newCapabilities) {
if (oldCapabilities == null) {
if (newCapabilities != null) {
return true;
}
} else if (!oldCapabilities.equals(newCapabilities)) {
return true;
}
return false;
}
}
private final class MyOnItemSelectedListener implements AdapterView.OnItemSelectedListener {
@Override
public void onItemSelected(AdapterView<?> spinner, View view, int position, long id) {
if (spinner == mDestinationSpinner) {
if (position == AdapterView.INVALID_POSITION) {
return;
}
if (id == DEST_ADAPTER_ITEM_ID_ALL_PRINTERS) {
startSelectPrinterActivity();
return;
}
PrinterHolder currentItem = (PrinterHolder) mDestinationSpinner.getSelectedItem();
PrinterInfo currentPrinter = (currentItem != null) ? currentItem.printer : null;
// Why on earth item selected is called if no selection changed.
if (mCurrentPrinter == currentPrinter) {
return;
}
mCurrentPrinter = currentPrinter;
PrinterHolder printerHolder = mDestinationSpinnerAdapter.getPrinterHolder(
currentPrinter.getId());
if (!printerHolder.removed) {
setState(STATE_CONFIGURING);
mDestinationSpinnerAdapter.pruneRemovedPrinters();
ensurePreviewUiShown();
}
mPrintJob.setPrinterId(currentPrinter.getId());
mPrintJob.setPrinterName(currentPrinter.getName());
mPrinterRegistry.setTrackedPrinter(currentPrinter.getId());
PrinterCapabilitiesInfo capabilities = currentPrinter.getCapabilities();
if (capabilities != null) {
updatePrintAttributesFromCapabilities(capabilities);
}
mPrinterAvailabilityDetector.updatePrinter(currentPrinter);
} else if (spinner == mMediaSizeSpinner) {
SpinnerItem<MediaSize> mediaItem = mMediaSizeSpinnerAdapter.getItem(position);
PrintAttributes attributes = mPrintJob.getAttributes();
if (mOrientationSpinner.getSelectedItemPosition() == 0) {
attributes.setMediaSize(mediaItem.value.asPortrait());
} else {
attributes.setMediaSize(mediaItem.value.asLandscape());
}
} else if (spinner == mColorModeSpinner) {
SpinnerItem<Integer> colorModeItem = mColorModeSpinnerAdapter.getItem(position);
mPrintJob.getAttributes().setColorMode(colorModeItem.value);
} else if (spinner == mOrientationSpinner) {
SpinnerItem<Integer> orientationItem = mOrientationSpinnerAdapter.getItem(position);
PrintAttributes attributes = mPrintJob.getAttributes();
if (mMediaSizeSpinner.getSelectedItem() != null) {
if (orientationItem.value == ORIENTATION_PORTRAIT) {
attributes.copyFrom(attributes.asPortrait());
} else {
attributes.copyFrom(attributes.asLandscape());
}
}
} else if (spinner == mRangeOptionsSpinner) {
if (mRangeOptionsSpinner.getSelectedItemPosition() == 0) {
mPageRangeEditText.setText("");
} else if (TextUtils.isEmpty(mPageRangeEditText.getText())) {
mPageRangeEditText.setError("");
}
}
if (canUpdateDocument()) {
updateDocument(false);
}
updateOptionsUi();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
/* do nothing*/
}
}
private final class SelectAllOnFocusListener implements OnFocusChangeListener {
@Override
public void onFocusChange(View view, boolean hasFocus) {
EditText editText = (EditText) view;
if (!TextUtils.isEmpty(editText.getText())) {
editText.setSelection(editText.getText().length());
}
}
}
private final class RangeTextWatcher implements TextWatcher {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
/* do nothing */
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
/* do nothing */
}
@Override
public void afterTextChanged(Editable editable) {
final boolean hadErrors = hasErrors();
String text = editable.toString();
if (TextUtils.isEmpty(text)) {
mPageRangeEditText.setError("");
updateOptionsUi();
return;
}
String escapedText = PATTERN_ESCAPE_SPECIAL_CHARS.matcher(text).replaceAll("////");
if (!PATTERN_PAGE_RANGE.matcher(escapedText).matches()) {
mPageRangeEditText.setError("");
updateOptionsUi();
return;
}
PrintDocumentInfo info = mPrintedDocument.getDocumentInfo().info;
final int pageCount = (info != null) ? getAdjustedPageCount(info) : 0;
// The range
Matcher matcher = PATTERN_DIGITS.matcher(text);
while (matcher.find()) {
String numericString = text.substring(matcher.start(), matcher.end()).trim();
if (TextUtils.isEmpty(numericString)) {
continue;
}
final int pageIndex = Integer.parseInt(numericString);
if (pageIndex < 1 || pageIndex > pageCount) {
mPageRangeEditText.setError("");
updateOptionsUi();
return;
}
}
// We intentionally do not catch the case of the from page being
// greater than the to page. When computing the requested pages
// we just swap them if necessary.
mPageRangeEditText.setError(null);
mPrintButton.setEnabled(true);
updateOptionsUi();
if (hadErrors && !hasErrors()) {
updateOptionsUi();
}
}
}
private final class EditTextWatcher implements TextWatcher {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
/* do nothing */
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
/* do nothing */
}
@Override
public void afterTextChanged(Editable editable) {
final boolean hadErrors = hasErrors();
if (editable.length() == 0) {
mCopiesEditText.setError("");
updateOptionsUi();
return;
}
int copies = 0;
try {
copies = Integer.parseInt(editable.toString());
} catch (NumberFormatException nfe) {
/* ignore */
}
if (copies < MIN_COPIES) {
mCopiesEditText.setError("");
updateOptionsUi();
return;
}
mPrintJob.setCopies(copies);
mCopiesEditText.setError(null);
updateOptionsUi();
if (hadErrors && canUpdateDocument()) {
updateDocument(false);
}
}
}
private final class ProgressMessageController implements Runnable {
private static final long PROGRESS_TIMEOUT_MILLIS = 1000;
private final Handler mHandler;
private boolean mPosted;
public ProgressMessageController(Context context) {
mHandler = new Handler(context.getMainLooper(), null, false);
}
public void post() {
if (mPosted) {
return;
}
mPosted = true;
mHandler.postDelayed(this, PROGRESS_TIMEOUT_MILLIS);
}
public void cancel() {
if (!mPosted) {
return;
}
mPosted = false;
mHandler.removeCallbacks(this);
}
@Override
public void run() {
mPosted = false;
setState(STATE_UPDATE_SLOW);
ensureProgressUiShown();
updateOptionsUi();
}
}
private static final class DocumentTransformer implements ServiceConnection {
private static final String TEMP_FILE_PREFIX = "print_job";
private static final String TEMP_FILE_EXTENSION = ".pdf";
private final Context mContext;
private final MutexFileProvider mFileProvider;
private final PrintJobInfo mPrintJob;
private final PageRange[] mPagesToShred;
private final PrintAttributes mAttributesToApply;
private final Runnable mCallback;
public DocumentTransformer(Context context, PrintJobInfo printJob,
MutexFileProvider fileProvider, PrintAttributes attributes,
Runnable callback) {
mContext = context;
mPrintJob = printJob;
mFileProvider = fileProvider;
mCallback = callback;
mPagesToShred = computePagesToShred(mPrintJob);
mAttributesToApply = attributes;
}
public void transform() {
// If we have only the pages we want, done.
if (mPagesToShred.length <= 0 && mAttributesToApply == null) {
mCallback.run();
return;
}
// Bind to the manipulation service and the work
// will be performed upon connection to the service.
Intent intent = new Intent(PdfManipulationService.ACTION_GET_EDITOR);
intent.setClass(mContext, PdfManipulationService.class);
mContext.bindService(intent, this, Context.BIND_AUTO_CREATE);
}
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
final IPdfEditor editor = IPdfEditor.Stub.asInterface(service);
new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
// It's OK to access the data members as they are
// final and this code is the last one to touch
// them as shredding is the very last step, so the
// UI is not interactive at this point.
doTransform(editor);
updatePrintJob();
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
mContext.unbindService(DocumentTransformer.this);
mCallback.run();
}
}.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}
@Override
public void onServiceDisconnected(ComponentName name) {
/* do nothing */
}
private void doTransform(IPdfEditor editor) {
File tempFile = null;
ParcelFileDescriptor src = null;
ParcelFileDescriptor dst = null;
InputStream in = null;
OutputStream out = null;
try {
File jobFile = mFileProvider.acquireFile(null);
src = ParcelFileDescriptor.open(jobFile, ParcelFileDescriptor.MODE_READ_WRITE);
// Open the document.
editor.openDocument(src);
// We passed the fd over IPC, close this one.
src.close();
// Drop the pages.
editor.removePages(mPagesToShred);
// Apply print attributes if needed.
if (mAttributesToApply != null) {
editor.applyPrintAttributes(mAttributesToApply);
}
// Write the modified PDF to a temp file.
tempFile = File.createTempFile(TEMP_FILE_PREFIX, TEMP_FILE_EXTENSION,
mContext.getCacheDir());
dst = ParcelFileDescriptor.open(tempFile, ParcelFileDescriptor.MODE_READ_WRITE);
editor.write(dst);
dst.close();
// Close the document.
editor.closeDocument();
// Copy the temp file over the print job file.
jobFile.delete();
in = new FileInputStream(tempFile);
out = new FileOutputStream(jobFile);
Streams.copy(in, out);
} catch (IOException|RemoteException e) {
Log.e(LOG_TAG, "Error dropping pages", e);
} finally {
IoUtils.closeQuietly(src);
IoUtils.closeQuietly(dst);
IoUtils.closeQuietly(in);
IoUtils.closeQuietly(out);
if (tempFile != null) {
tempFile.delete();
}
mFileProvider.releaseFile();
}
}
private void updatePrintJob() {
// Update the print job pages.
final int newPageCount = PageRangeUtils.getNormalizedPageCount(
mPrintJob.getPages(), 0);
mPrintJob.setPages(new PageRange[]{PageRange.ALL_PAGES});
// Update the print job document info.
PrintDocumentInfo oldDocInfo = mPrintJob.getDocumentInfo();
PrintDocumentInfo newDocInfo = new PrintDocumentInfo
.Builder(oldDocInfo.getName())
.setContentType(oldDocInfo.getContentType())
.setPageCount(newPageCount)
.build();
mPrintJob.setDocumentInfo(newDocInfo);
}
private static PageRange[] computePagesToShred(PrintJobInfo printJob) {
List<PageRange> rangesToShred = new ArrayList<>();
PageRange previousRange = null;
final int pageCount = printJob.getDocumentInfo().getPageCount();
PageRange[] printedPages = printJob.getPages();
final int rangeCount = printedPages.length;
for (int i = 0; i < rangeCount; i++) {
PageRange range = PageRangeUtils.asAbsoluteRange(printedPages[i], pageCount);
if (previousRange == null) {
final int startPageIdx = 0;
final int endPageIdx = range.getStart() - 1;
if (startPageIdx <= endPageIdx) {
PageRange removedRange = new PageRange(startPageIdx, endPageIdx);
rangesToShred.add(removedRange);
}
} else {
final int startPageIdx = previousRange.getEnd() + 1;
final int endPageIdx = range.getStart() - 1;
if (startPageIdx <= endPageIdx) {
PageRange removedRange = new PageRange(startPageIdx, endPageIdx);
rangesToShred.add(removedRange);
}
}
if (i == rangeCount - 1) {
final int startPageIdx = range.getEnd() + 1;
final int endPageIdx = printJob.getDocumentInfo().getPageCount() - 1;
if (startPageIdx <= endPageIdx) {
PageRange removedRange = new PageRange(startPageIdx, endPageIdx);
rangesToShred.add(removedRange);
}
}
previousRange = range;
}
PageRange[] result = new PageRange[rangesToShred.size()];
rangesToShred.toArray(result);
return result;
}
}
}