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|
package com.artifex.mupdfdemo;
import java.util.concurrent.Executor;
import android.animation.Animator;
import android.animation.AnimatorInflater;
import android.animation.AnimatorSet;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.graphics.Color;
import android.graphics.RectF;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.text.Editable;
import android.text.TextWatcher;
import android.text.method.PasswordTransformationMethod;
import android.util.DisplayMetrics;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.ScaleGestureDetector;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.RelativeLayout;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.ViewAnimator;
class ThreadPerTaskExecutor implements Executor {
public void execute(Runnable r) {
new Thread(r).start();
}
}
class SearchTaskResult {
public final String txt;
public final int pageNumber;
public final RectF searchBoxes[];
static private SearchTaskResult singleton;
SearchTaskResult(String _txt, int _pageNumber, RectF _searchBoxes[]) {
txt = _txt;
pageNumber = _pageNumber;
searchBoxes = _searchBoxes;
}
static public SearchTaskResult get() {
return singleton;
}
static public void set(SearchTaskResult r) {
singleton = r;
}
}
class ProgressDialogX extends ProgressDialog {
public ProgressDialogX(Context context) {
super(context);
}
private boolean mCancelled = false;
public boolean isCancelled() {
return mCancelled;
}
@Override
public void cancel() {
mCancelled = true;
super.cancel();
}
}
public class MuPDFActivity extends Activity
{
/* The core rendering instance */
private static int tapPageMargin;
private static final int SEARCH_PROGRESS_DELAY = 200;
private MuPDFCore core;
private String mFileName;
private ReaderView mDocView;
private View mButtonsView;
private boolean mButtonsVisible;
private EditText mPasswordView;
private TextView mFilenameView;
private SeekBar mPageSlider;
private int mPageSliderRes;
private TextView mPageNumberView;
private TextView mInfoView;
private ImageButton mSearchButton;
private ImageButton mSelectButton;
private ImageButton mCancelSelectButton;
private ImageButton mCopySelectButton;
private ImageButton mCancelButton;
private ImageButton mOutlineButton;
private ViewAnimator mTopBarSwitcher;
private ImageButton mLinkButton;
private boolean mTopBarIsSearch;
private ImageButton mSearchBack;
private ImageButton mSearchFwd;
private EditText mSearchText;
private AsyncTask<Void,Integer,SearchTaskResult> mSearchTask;
//private SearchTaskResult mSearchTaskResult;
private AlertDialog.Builder mAlertBuilder;
private boolean mLinkHighlight = false;
private boolean mSelecting = false;
private final Handler mHandler = new Handler();
private boolean mAlertsActive= false;
private AsyncTask<Void,Void,MuPDFAlert> mAlertTask;
private AlertDialog mAlertDialog;
public void createAlertWaiter() {
mAlertsActive = true;
// All mupdf library calls are performed on asynchronous tasks to avoid stalling
// the UI. Some calls can lead to javascript-invoked requests to display an
// alert dialog and collect a reply from the user. The task has to be blocked
// until the user's reply is received. This method creates an asynchronous task,
// the purpose of which is to wait of these requests and produce the dialog
// in response, while leaving the core blocked. When the dialog receives the
// user's response, it is sent to the core via replyToAlert, unblocking it.
// Another alert-waiting task is then created to pick up the next alert.
if (mAlertTask != null) {
mAlertTask.cancel(true);
mAlertTask = null;
}
if (mAlertDialog != null) {
mAlertDialog.cancel();
mAlertDialog = null;
}
mAlertTask = new AsyncTask<Void,Void,MuPDFAlert>() {
@Override
protected MuPDFAlert doInBackground(Void... arg0) {
if (!mAlertsActive)
return null;
return core.waitForAlert();
}
@Override
protected void onPostExecute(final MuPDFAlert result) {
// core.waitForAlert may return null when shutting down
if (result == null)
return;
final MuPDFAlert.ButtonPressed pressed[] = new MuPDFAlert.ButtonPressed[3];
for(int i = 0; i < 3; i++)
pressed[i] = MuPDFAlert.ButtonPressed.None;
DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
mAlertDialog = null;
if (mAlertsActive) {
int index = 0;
switch (which) {
case AlertDialog.BUTTON1: index=0; break;
case AlertDialog.BUTTON2: index=1; break;
case AlertDialog.BUTTON3: index=2; break;
}
result.buttonPressed = pressed[index];
// Send the user's response to the core, so that it can
// continue processing.
core.replyToAlert(result);
// Create another alert-waiter to pick up the next alert.
createAlertWaiter();
}
}
};
mAlertDialog = mAlertBuilder.create();
mAlertDialog.setTitle(result.title);
mAlertDialog.setMessage(result.message);
switch (result.iconType)
{
case Error:
break;
case Warning:
break;
case Question:
break;
case Status:
break;
}
switch (result.buttonGroupType)
{
case OkCancel:
mAlertDialog.setButton(AlertDialog.BUTTON2, "Cancel", listener);
pressed[1] = MuPDFAlert.ButtonPressed.Cancel;
case Ok:
mAlertDialog.setButton(AlertDialog.BUTTON1, "Ok", listener);
pressed[0] = MuPDFAlert.ButtonPressed.Ok;
break;
case YesNoCancel:
mAlertDialog.setButton(AlertDialog.BUTTON3, "Cancel", listener);
pressed[2] = MuPDFAlert.ButtonPressed.Cancel;
case YesNo:
mAlertDialog.setButton(AlertDialog.BUTTON1, "Yes", listener);
pressed[0] = MuPDFAlert.ButtonPressed.Yes;
mAlertDialog.setButton(AlertDialog.BUTTON2, "No", listener);
pressed[1] = MuPDFAlert.ButtonPressed.No;
break;
}
mAlertDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
public void onCancel(DialogInterface dialog) {
mAlertDialog = null;
if (mAlertsActive) {
result.buttonPressed = MuPDFAlert.ButtonPressed.None;
core.replyToAlert(result);
createAlertWaiter();
}
}
});
mAlertDialog.show();
}
};
mAlertTask.executeOnExecutor(new ThreadPerTaskExecutor());
}
public void destroyAlertWaiter() {
mAlertsActive = false;
if (mAlertDialog != null) {
mAlertDialog.cancel();
mAlertDialog = null;
}
if (mAlertTask != null) {
mAlertTask.cancel(true);
mAlertTask = null;
}
}
private MuPDFCore openFile(String path)
{
int lastSlashPos = path.lastIndexOf('/');
mFileName = new String(lastSlashPos == -1
? path
: path.substring(lastSlashPos+1));
System.out.println("Trying to open "+path);
try
{
core = new MuPDFCore(path);
// New file: drop the old outline data
OutlineActivityData.set(null);
}
catch (Exception e)
{
System.out.println(e);
return null;
}
return core;
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// Get the screen size etc to customise tap margins.
// We calculate the size of 1 inch of the screen for tapping.
// On some devices the dpi values returned are wrong, so we
// sanity check it: we first restrict it so that we are never
// less than 100 pixels (the smallest Android device screen
// dimension I've seen is 480 pixels or so). Then we check
// to ensure we are never more than 1/5 of the screen width.
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
tapPageMargin = (int)dm.xdpi;
if (tapPageMargin < 100)
tapPageMargin = 100;
if (tapPageMargin > dm.widthPixels/5)
tapPageMargin = dm.widthPixels/5;
mAlertBuilder = new AlertDialog.Builder(this);
if (core == null) {
core = (MuPDFCore)getLastNonConfigurationInstance();
if (savedInstanceState != null && savedInstanceState.containsKey("FileName")) {
mFileName = savedInstanceState.getString("FileName");
}
}
if (core == null) {
Intent intent = getIntent();
if (Intent.ACTION_VIEW.equals(intent.getAction())) {
Uri uri = intent.getData();
if (uri.toString().startsWith("content://")) {
// Handle view requests from the Transformer Prime's file manager
// Hopefully other file managers will use this same scheme, if not
// using explicit paths.
Cursor cursor = getContentResolver().query(uri, new String[]{"_data"}, null, null, null);
if (cursor.moveToFirst()) {
uri = Uri.parse(cursor.getString(0));
}
}
core = openFile(Uri.decode(uri.getEncodedPath()));
SearchTaskResult.set(null);
}
if (core != null && core.needsPassword()) {
requestPassword(savedInstanceState);
return;
}
}
if (core == null)
{
AlertDialog alert = mAlertBuilder.create();
alert.setTitle(R.string.open_failed);
alert.setButton(AlertDialog.BUTTON_POSITIVE, "Dismiss",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
alert.show();
return;
}
createUI(savedInstanceState);
}
public void requestPassword(final Bundle savedInstanceState) {
mPasswordView = new EditText(this);
mPasswordView.setInputType(EditorInfo.TYPE_TEXT_VARIATION_PASSWORD);
mPasswordView.setTransformationMethod(new PasswordTransformationMethod());
AlertDialog alert = mAlertBuilder.create();
alert.setTitle(R.string.enter_password);
alert.setView(mPasswordView);
alert.setButton(AlertDialog.BUTTON_POSITIVE, "Ok",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
if (core.authenticatePassword(mPasswordView.getText().toString())) {
createUI(savedInstanceState);
} else {
requestPassword(savedInstanceState);
}
}
});
alert.setButton(AlertDialog.BUTTON_NEGATIVE, "Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
alert.show();
}
public void createUI(Bundle savedInstanceState) {
if (core == null)
return;
// Now create the UI.
// First create the document view making use of the ReaderView's internal
// gesture recognition
mDocView = new ReaderView(this) {
private boolean showButtonsDisabled;
public boolean onSingleTapUp(MotionEvent e) {
LinkInfo link = null;
if (!mSelecting && !showButtonsDisabled) {
MuPDFPageView pageView = (MuPDFPageView) mDocView.getDisplayedView();
if (MuPDFCore.javascriptSupported() && pageView.passClickEvent(e.getX(), e.getY())) {
// If the page consumes the event do nothing else
} else if (mLinkHighlight && pageView != null && (link = pageView.hitLink(e.getX(), e.getY())) != null) {
link.acceptVisitor(new LinkInfoVisitor() {
@Override
public void visitInternal(LinkInfoInternal li) {
// Clicked on an internal (GoTo) link
mDocView.setDisplayedViewIndex(li.pageNumber);
}
@Override
public void visitExternal(LinkInfoExternal li) {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(li.url));
startActivity(intent);
}
@Override
public void visitRemote(LinkInfoRemote li) {
// Clicked on a remote (GoToR) link
}
});
} else if (e.getX() < tapPageMargin) {
super.moveToPrevious();
} else if (e.getX() > super.getWidth()-tapPageMargin) {
super.moveToNext();
} else if (!mButtonsVisible) {
showButtons();
} else {
hideButtons();
}
}
return super.onSingleTapUp(e);
}
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
if (!mSelecting) {
if (!showButtonsDisabled)
hideButtons();
return super.onScroll(e1, e2, distanceX, distanceY);
} else {
MuPDFPageView pageView = (MuPDFPageView) mDocView.getDisplayedView();
if (pageView != null)
pageView.selectText(e1.getX(), e1.getY(), e2.getX(), e2.getY());
return true;
}
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2,
float velocityX, float velocityY) {
if (!mSelecting)
return super.onFling(e1, e2, velocityX, velocityY);
else
return true;
}
public boolean onScaleBegin(ScaleGestureDetector d) {
// Disabled showing the buttons until next touch.
// Not sure why this is needed, but without it
// pinch zoom can make the buttons appear
showButtonsDisabled = true;
return super.onScaleBegin(d);
}
public boolean onTouchEvent(MotionEvent event) {
if (event.getActionMasked() == MotionEvent.ACTION_DOWN)
showButtonsDisabled = false;
return super.onTouchEvent(event);
}
protected void onChildSetup(int i, View v) {
if (SearchTaskResult.get() != null && SearchTaskResult.get().pageNumber == i)
((PageView)v).setSearchBoxes(SearchTaskResult.get().searchBoxes);
else
((PageView)v).setSearchBoxes(null);
((PageView)v).setLinkHighlighting(mLinkHighlight);
((MuPDFPageView)v).setChangeReporter(new Runnable() {
public void run() {
mDocView.applyToChildren(new ReaderView.ViewMapper() {
@Override
void applyToView(View view) {
((MuPDFPageView)view).update();
}
});
}
});
}
protected void onMoveToChild(int i) {
if (core == null)
return;
mPageNumberView.setText(String.format("%d / %d", i+1, core.countPages()));
mPageSlider.setMax((core.countPages()-1) * mPageSliderRes);
mPageSlider.setProgress(i * mPageSliderRes);
if (SearchTaskResult.get() != null && SearchTaskResult.get().pageNumber != i) {
SearchTaskResult.set(null);
mDocView.resetupChildren();
}
}
protected void onSettle(View v) {
// When the layout has settled ask the page to render
// in HQ
((PageView)v).addHq(false);
}
protected void onUnsettle(View v) {
// When something changes making the previous settled view
// no longer appropriate, tell the page to remove HQ
((PageView)v).removeHq();
}
@Override
protected void onNotInUse(View v) {
((PageView)v).releaseResources();
}
};
mDocView.setAdapter(new MuPDFPageAdapter(this, core));
// Make the buttons overlay, and store all its
// controls in variables
makeButtonsView();
// Set up the page slider
int smax = Math.max(core.countPages()-1,1);
mPageSliderRes = ((10 + smax - 1)/smax) * 2;
// Set the file-name text
mFilenameView.setText(mFileName);
// Activate the seekbar
mPageSlider.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onStopTrackingTouch(SeekBar seekBar) {
mDocView.setDisplayedViewIndex((seekBar.getProgress()+mPageSliderRes/2)/mPageSliderRes);
}
public void onStartTrackingTouch(SeekBar seekBar) {}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
updatePageNumView((progress+mPageSliderRes/2)/mPageSliderRes);
}
});
// Activate the search-preparing button
mSearchButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
searchModeOn();
}
});
// Activate the select button
mSelectButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
mSelecting = true;
mTopBarSwitcher.setDisplayedChild(2);
}
});
mCancelSelectButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
PageView pageView = (PageView) mDocView.getDisplayedView();
if (pageView != null)
pageView.deselectText();
mSelecting = false;
mTopBarSwitcher.setDisplayedChild(0);
}
});
final Context context = this;
mCopySelectButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
PageView pageView = (PageView) mDocView.getDisplayedView();
boolean copied = false;
if (pageView != null)
copied = pageView.copySelection();
mSelecting = false;
mTopBarSwitcher.setDisplayedChild(0);
mInfoView.setText(copied?"Copied to clipboard":"No text selected");
int currentApiVersion = android.os.Build.VERSION.SDK_INT;
if (currentApiVersion >= android.os.Build.VERSION_CODES.HONEYCOMB) {
AnimatorSet set = (AnimatorSet) AnimatorInflater.loadAnimator(context, R.animator.info);
set.setTarget(mInfoView);
set.addListener(new Animator.AnimatorListener() {
public void onAnimationStart(Animator animation) {
mInfoView.setVisibility(View.VISIBLE);
}
public void onAnimationRepeat(Animator animation) {
}
public void onAnimationEnd(Animator animation) {
mInfoView.setVisibility(View.INVISIBLE);
}
public void onAnimationCancel(Animator animation) {
}
});
set.start();
} else {
mInfoView.setVisibility(View.VISIBLE);
mHandler.postDelayed(new Runnable() {
public void run() {
mInfoView.setVisibility(View.INVISIBLE);
}
}, 500);
}
}
});
mCancelButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
searchModeOff();
}
});
// Search invoking buttons are disabled while there is no text specified
mSearchBack.setEnabled(false);
mSearchFwd.setEnabled(false);
mSearchBack.setColorFilter(Color.argb(255, 128, 128, 128));
mSearchFwd.setColorFilter(Color.argb(255, 128, 128, 128));
// React to interaction with the text widget
mSearchText.addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable s) {
boolean haveText = s.toString().length() > 0;
mSearchBack.setEnabled(haveText);
mSearchFwd.setEnabled(haveText);
if (haveText) {
mSearchBack.setColorFilter(Color.argb(255, 255, 255, 255));
mSearchFwd.setColorFilter(Color.argb(255, 255, 255, 255));
} else {
mSearchBack.setColorFilter(Color.argb(255, 128, 128, 128));
mSearchFwd.setColorFilter(Color.argb(255, 128, 128, 128));
}
// Remove any previous search results
if (SearchTaskResult.get() != null && !mSearchText.getText().toString().equals(SearchTaskResult.get().txt)) {
SearchTaskResult.set(null);
mDocView.resetupChildren();
}
}
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {}
public void onTextChanged(CharSequence s, int start, int before,
int count) {}
});
//React to Done button on keyboard
mSearchText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_DONE)
search(1);
return false;
}
});
mSearchText.setOnKeyListener(new View.OnKeyListener() {
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER)
search(1);
return false;
}
});
// Activate search invoking buttons
mSearchBack.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
search(-1);
}
});
mSearchFwd.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
search(1);
}
});
mLinkButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (mLinkHighlight) {
mLinkButton.setColorFilter(Color.argb(0xFF, 255, 255, 255));
mLinkHighlight = false;
} else {
// LINK_COLOR tint
mLinkButton.setColorFilter(Color.argb(0xFF, 172, 114, 37));
mLinkHighlight = true;
}
// Inform pages of the change.
mDocView.resetupChildren();
}
});
if (core.hasOutline()) {
mOutlineButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
OutlineItem outline[] = core.getOutline();
if (outline != null) {
OutlineActivityData.get().items = outline;
Intent intent = new Intent(MuPDFActivity.this, OutlineActivity.class);
startActivityForResult(intent, 0);
}
}
});
} else {
mOutlineButton.setVisibility(View.GONE);
}
// Reenstate last state if it was recorded
SharedPreferences prefs = getPreferences(Context.MODE_PRIVATE);
mDocView.setDisplayedViewIndex(prefs.getInt("page"+mFileName, 0));
if (savedInstanceState == null || !savedInstanceState.getBoolean("ButtonsHidden", false))
showButtons();
if(savedInstanceState != null && savedInstanceState.getBoolean("SearchMode", false))
searchModeOn();
// Stick the document view and the buttons overlay into a parent view
RelativeLayout layout = new RelativeLayout(this);
layout.addView(mDocView);
layout.addView(mButtonsView);
layout.setBackgroundResource(R.drawable.tiled_background);
//layout.setBackgroundResource(R.color.canvas);
setContentView(layout);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode >= 0)
mDocView.setDisplayedViewIndex(resultCode);
super.onActivityResult(requestCode, resultCode, data);
}
public Object onRetainNonConfigurationInstance()
{
MuPDFCore mycore = core;
core = null;
return mycore;
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
if (mFileName != null && mDocView != null) {
outState.putString("FileName", mFileName);
// Store current page in the prefs against the file name,
// so that we can pick it up each time the file is loaded
// Other info is needed only for screen-orientation change,
// so it can go in the bundle
SharedPreferences prefs = getPreferences(Context.MODE_PRIVATE);
SharedPreferences.Editor edit = prefs.edit();
edit.putInt("page"+mFileName, mDocView.getDisplayedViewIndex());
edit.commit();
}
if (!mButtonsVisible)
outState.putBoolean("ButtonsHidden", true);
if (mTopBarIsSearch)
outState.putBoolean("SearchMode", true);
}
@Override
protected void onPause() {
super.onPause();
killSearch();
if (mFileName != null && mDocView != null) {
SharedPreferences prefs = getPreferences(Context.MODE_PRIVATE);
SharedPreferences.Editor edit = prefs.edit();
edit.putInt("page"+mFileName, mDocView.getDisplayedViewIndex());
edit.commit();
}
}
public void onDestroy()
{
if (core != null)
core.onDestroy();
if (mAlertTask != null) {
mAlertTask.cancel(true);
mAlertTask = null;
}
core = null;
super.onDestroy();
}
void showButtons() {
if (core == null)
return;
if (!mButtonsVisible) {
mButtonsVisible = true;
// Update page number text and slider
int index = mDocView.getDisplayedViewIndex();
updatePageNumView(index);
mPageSlider.setMax((core.countPages()-1)*mPageSliderRes);
mPageSlider.setProgress(index*mPageSliderRes);
if (mTopBarIsSearch) {
mSearchText.requestFocus();
showKeyboard();
}
Animation anim = new TranslateAnimation(0, 0, -mTopBarSwitcher.getHeight(), 0);
anim.setDuration(200);
anim.setAnimationListener(new Animation.AnimationListener() {
public void onAnimationStart(Animation animation) {
mTopBarSwitcher.setVisibility(View.VISIBLE);
}
public void onAnimationRepeat(Animation animation) {}
public void onAnimationEnd(Animation animation) {}
});
mTopBarSwitcher.startAnimation(anim);
anim = new TranslateAnimation(0, 0, mPageSlider.getHeight(), 0);
anim.setDuration(200);
anim.setAnimationListener(new Animation.AnimationListener() {
public void onAnimationStart(Animation animation) {
mPageSlider.setVisibility(View.VISIBLE);
}
public void onAnimationRepeat(Animation animation) {}
public void onAnimationEnd(Animation animation) {
mPageNumberView.setVisibility(View.VISIBLE);
}
});
mPageSlider.startAnimation(anim);
}
}
void hideButtons() {
if (mButtonsVisible) {
mButtonsVisible = false;
hideKeyboard();
Animation anim = new TranslateAnimation(0, 0, 0, -mTopBarSwitcher.getHeight());
anim.setDuration(200);
anim.setAnimationListener(new Animation.AnimationListener() {
public void onAnimationStart(Animation animation) {}
public void onAnimationRepeat(Animation animation) {}
public void onAnimationEnd(Animation animation) {
mTopBarSwitcher.setVisibility(View.INVISIBLE);
}
});
mTopBarSwitcher.startAnimation(anim);
anim = new TranslateAnimation(0, 0, 0, mPageSlider.getHeight());
anim.setDuration(200);
anim.setAnimationListener(new Animation.AnimationListener() {
public void onAnimationStart(Animation animation) {
mPageNumberView.setVisibility(View.INVISIBLE);
}
public void onAnimationRepeat(Animation animation) {}
public void onAnimationEnd(Animation animation) {
mPageSlider.setVisibility(View.INVISIBLE);
}
});
mPageSlider.startAnimation(anim);
}
}
void searchModeOn() {
if (!mTopBarIsSearch) {
mTopBarIsSearch = true;
//Focus on EditTextWidget
mSearchText.requestFocus();
showKeyboard();
mTopBarSwitcher.setDisplayedChild(1);
}
}
void searchModeOff() {
if (mTopBarIsSearch) {
mTopBarIsSearch = false;
hideKeyboard();
mTopBarSwitcher.setDisplayedChild(0);
SearchTaskResult.set(null);
// Make the ReaderView act on the change to mSearchTaskResult
// via overridden onChildSetup method.
mDocView.resetupChildren();
}
}
void updatePageNumView(int index) {
if (core == null)
return;
mPageNumberView.setText(String.format("%d / %d", index+1, core.countPages()));
}
void makeButtonsView() {
mButtonsView = getLayoutInflater().inflate(R.layout.buttons,null);
mFilenameView = (TextView)mButtonsView.findViewById(R.id.docNameText);
mPageSlider = (SeekBar)mButtonsView.findViewById(R.id.pageSlider);
mPageNumberView = (TextView)mButtonsView.findViewById(R.id.pageNumber);
mInfoView = (TextView)mButtonsView.findViewById(R.id.info);
mSearchButton = (ImageButton)mButtonsView.findViewById(R.id.searchButton);
mSelectButton = (ImageButton)mButtonsView.findViewById(R.id.selectButton);
mCancelSelectButton = (ImageButton)mButtonsView.findViewById(R.id.cancelSelectButton);
mCopySelectButton = (ImageButton)mButtonsView.findViewById(R.id.copySelectButton);
mCancelButton = (ImageButton)mButtonsView.findViewById(R.id.cancel);
mOutlineButton = (ImageButton)mButtonsView.findViewById(R.id.outlineButton);
mTopBarSwitcher = (ViewAnimator)mButtonsView.findViewById(R.id.switcher);
mSearchBack = (ImageButton)mButtonsView.findViewById(R.id.searchBack);
mSearchFwd = (ImageButton)mButtonsView.findViewById(R.id.searchForward);
mSearchText = (EditText)mButtonsView.findViewById(R.id.searchText);
mLinkButton = (ImageButton)mButtonsView.findViewById(R.id.linkButton);
mTopBarSwitcher.setVisibility(View.INVISIBLE);
mPageNumberView.setVisibility(View.INVISIBLE);
mInfoView.setVisibility(View.INVISIBLE);
mPageSlider.setVisibility(View.INVISIBLE);
}
void showKeyboard() {
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
if (imm != null)
imm.showSoftInput(mSearchText, 0);
}
void hideKeyboard() {
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
if (imm != null)
imm.hideSoftInputFromWindow(mSearchText.getWindowToken(), 0);
}
void killSearch() {
if (mSearchTask != null) {
mSearchTask.cancel(true);
mSearchTask = null;
}
}
void search(int direction) {
hideKeyboard();
if (core == null)
return;
killSearch();
final int increment = direction;
final int startIndex = SearchTaskResult.get() == null ? mDocView.getDisplayedViewIndex() : SearchTaskResult.get().pageNumber + increment;
final ProgressDialogX progressDialog = new ProgressDialogX(this);
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setTitle(getString(R.string.searching_));
progressDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
public void onCancel(DialogInterface dialog) {
killSearch();
}
});
progressDialog.setMax(core.countPages());
mSearchTask = new AsyncTask<Void,Integer,SearchTaskResult>() {
@Override
protected SearchTaskResult doInBackground(Void... params) {
int index = startIndex;
while (0 <= index && index < core.countPages() && !isCancelled()) {
publishProgress(index);
RectF searchHits[] = core.searchPage(index, mSearchText.getText().toString());
if (searchHits != null && searchHits.length > 0)
return new SearchTaskResult(mSearchText.getText().toString(), index, searchHits);
index += increment;
}
return null;
}
@Override
protected void onPostExecute(SearchTaskResult result) {
progressDialog.cancel();
if (result != null) {
// Ask the ReaderView to move to the resulting page
mDocView.setDisplayedViewIndex(result.pageNumber);
SearchTaskResult.set(result);
// Make the ReaderView act on the change to mSearchTaskResult
// via overridden onChildSetup method.
mDocView.resetupChildren();
} else {
mAlertBuilder.setTitle(SearchTaskResult.get() == null ? R.string.text_not_found : R.string.no_further_occurences_found);
AlertDialog alert = mAlertBuilder.create();
alert.setButton(AlertDialog.BUTTON_POSITIVE, "Dismiss",
(DialogInterface.OnClickListener)null);
alert.show();
}
}
@Override
protected void onCancelled() {
super.onCancelled();
progressDialog.cancel();
}
@Override
protected void onProgressUpdate(Integer... values) {
super.onProgressUpdate(values);
progressDialog.setProgress(values[0].intValue());
}
@Override
protected void onPreExecute() {
super.onPreExecute();
mHandler.postDelayed(new Runnable() {
public void run() {
if (!progressDialog.isCancelled())
{
progressDialog.show();
progressDialog.setProgress(startIndex);
}
}
}, SEARCH_PROGRESS_DELAY);
}
};
mSearchTask.execute();
}
@Override
public boolean onSearchRequested() {
if (mButtonsVisible && mTopBarIsSearch) {
hideButtons();
} else {
showButtons();
searchModeOn();
}
return super.onSearchRequested();
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
if (mButtonsVisible && !mTopBarIsSearch) {
hideButtons();
} else {
showButtons();
searchModeOff();
}
return super.onPrepareOptionsMenu(menu);
}
@Override
protected void onStart() {
if (core != null)
core.startAlerts();
createAlertWaiter();
super.onStart();
}
@Override
protected void onStop() {
destroyAlertWaiter();
if (core != null)
core.stopAlerts();
super.onStop();
}
@Override
public void onBackPressed() {
if (core.hasChanges()) {
DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
if (which == AlertDialog.BUTTON_POSITIVE)
core.save();
finish();
}
};
AlertDialog alert = mAlertBuilder.create();
alert.setTitle("MuPDF");
alert.setMessage("Document has changes. Save them?");
alert.setButton(AlertDialog.BUTTON_POSITIVE, "Yes", listener);
alert.setButton(AlertDialog.BUTTON_NEGATIVE, "No", listener);
alert.show();
} else {
super.onBackPressed();
}
}
}
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