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 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 SafeAsyncTask<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.safeExecute();
}
void updatePageNumView(int index) {
if (core == null) return;
mPageNumberView.setText(String.format("%d/%d", index + 1, core.countPages()));
}
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) {
if (!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 (e.getX() < super.getWidth() / TAP_PAGE_MARGIN) {
super.moveToPrevious();
} else if (e.getX() > super.getWidth() * (TAP_PAGE_MARGIN - 1) / TAP_PAGE_MARGIN) {
super.moveToNext();
} else {
int linkPage = -1;
if (mLinkState != LinkState.INHIBIT) {
if (pageView != null) {
// XXX linkPage = pageView.hitLinkPage(e.getX(), e.getY());
}
}
if (linkPage != -1) {
mDocView.setDisplayedViewIndex(linkPage);
} else {
if (!mButtonsVisible) {
showButtons();
} else {
hideButtons();
}
}
}
}
return super.onSingleTapUp(e);
}
public boolean onScroll(
MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
if (!showButtonsDisabled) hideButtons();
return super.onScroll(e1, e2, distanceX, distanceY);
}
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(mLinkState == LinkState.HIGHLIGHT);
}
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();
}
});
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);
// 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);
// 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);
}
});
/* XXX
mLinkButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
switch(mLinkState) {
case DEFAULT:
mLinkState = LinkState.HIGHLIGHT;
mLinkButton.setImageResource(R.drawable.ic_hl_link);
//Inform pages of the change.
mDocView.resetupChildren();
break;
case HIGHLIGHT:
mLinkState = LinkState.INHIBIT;
mLinkButton.setImageResource(R.drawable.ic_nolink);
//Inform pages of the change.
mDocView.resetupChildren();
break;
case INHIBIT:
mLinkState = LinkState.DEFAULT;
mLinkButton.setImageResource(R.drawable.ic_link);
break;
}
}
});
*/
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);
}