public void testRevertAutoCorrectForLanguageWithoutSpaces() {
    final String STRING_TO_TYPE = "tgis ";
    final String EXPECTED_INTERMEDIATE_RESULT = "this";
    final String EXPECTED_FINAL_RESULT = "tgis";
    changeKeyboardLocaleAndDictLocale("th", "en_US");
    type(STRING_TO_TYPE);
    assertEquals("simple auto-correct for language without spaces",
            EXPECTED_INTERMEDIATE_RESULT, mEditText.getText().toString());
    type(Constants.CODE_DELETE);
    assertEquals("simple auto-correct for language without spaces",
            EXPECTED_FINAL_RESULT, mEditText.getText().toString());
    // Check we are back to composing the word
    assertEquals("don't resume suggestion on backspace", 0,
            BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals("don't resume suggestion on backspace", 4,
            BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
}
 

public void testStartComposingInsideText() {
    final String WORD_TO_TYPE = "abcdefgh ";
    final int typedLength = WORD_TO_TYPE.length() - 1; // -1 because space gets eaten
    final int CURSOR_POS = 4;
    changeKeyboardLocaleAndDictLocale("th", "en_US");
    type(WORD_TO_TYPE);
    mLatinIME.onUpdateSelection(0, 0, typedLength, typedLength, -1, -1);
    mInputConnection.setSelection(CURSOR_POS, CURSOR_POS);
    mLatinIME.onUpdateSelection(typedLength, typedLength,
            CURSOR_POS, CURSOR_POS, -1, -1);
    sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
    runMessages();
    assertEquals("start composing inside text", -1,
            BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals("start composing inside text", -1,
            BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
    type("xxxx");
    assertEquals("start composing inside text", 4,
            BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals("start composing inside text", 8,
            BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
}
 

public void testViaBackButtonOnView() {
    testView.loadUrl("file:///android_asset/www/backbuttonmultipage/sample2.html");
    sleep();
    String url = testView.getUrl();
    assertTrue(url.endsWith("sample2.html"));
    testView.loadUrl("file:///android_asset/www/backbuttonmultipage/sample3.html");
    sleep();
    url = testView.getUrl();
    assertTrue(url.endsWith("sample3.html"));
    BaseInputConnection viewConnection = new BaseInputConnection(testView, true);
    KeyEvent backDown = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_BACK);
    KeyEvent backUp = new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_BACK);
    viewConnection.sendKeyEvent(backDown);
    viewConnection.sendKeyEvent(backUp);
    sleep();
    url = testView.getUrl();
    assertTrue(url.endsWith("sample2.html"));
    viewConnection.sendKeyEvent(backDown);
    viewConnection.sendKeyEvent(backUp);
    sleep();
    url = testView.getUrl();
    assertTrue(url.endsWith("index.html"));
}
 

public void testViaBackButtonOnLayout() {
    testView.loadUrl("file:///android_asset/www/backbuttonmultipage/sample2.html");
    sleep();
    String url = testView.getUrl();
    assertTrue(url.endsWith("sample2.html"));
    testView.loadUrl("file:///android_asset/www/backbuttonmultipage/sample3.html");
    sleep();
    url = testView.getUrl();
    assertTrue(url.endsWith("sample3.html"));
    BaseInputConnection viewConnection = new BaseInputConnection(containerView, true);
    KeyEvent backDown = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_BACK);
    KeyEvent backUp = new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_BACK);
    viewConnection.sendKeyEvent(backDown);
    viewConnection.sendKeyEvent(backUp);
    sleep();
    url = testView.getUrl();
    assertTrue(url.endsWith("sample2.html"));
    viewConnection.sendKeyEvent(backDown);
    viewConnection.sendKeyEvent(backUp);
    sleep();
    url = testView.getUrl();
    assertTrue(url.endsWith("index.html"));
}
 

@Override
public InputConnection onCreateInputConnection(EditorInfo editorinfo) {
	BaseInputConnection bic = new BaseInputConnection(this, false);
	editorinfo.actionLabel = null;
	editorinfo.inputType = InputType.TYPE_NULL;
	editorinfo.imeOptions = EditorInfo.IME_FLAG_NO_FULLSCREEN;
	bic.finishComposingText();
	return bic;
}
 

/**
 * Whether we want to be showing inline autocomplete results. We don't want to show them as the
 * user deletes input. Also if there is a composition (e.g. while using the Japanese IME),
 * we must not autocomplete or we'll destroy the composition.
 * @return Whether we want to be showing inline autocomplete results.
 */
public boolean shouldAutocomplete() {
    if (mLastUrlEditWasDelete) return false;
    Editable text = getText();

    return isCursorAtEndOfTypedText()
            && !isPastedText()
            && !isHandlingBatchInput()
            && BaseInputConnection.getComposingSpanEnd(text)
                    == BaseInputConnection.getComposingSpanStart(text);
}
 

private void clean() {
      Editable text = mEditor.getText();
      BaseInputConnection.removeComposingSpans(text);

/* 
  Cleanup ParagraphStyles to:
  - make sure spans are applied to whole paragraphs
  - remove obsolete spans
  - Note: the sequence is important
*/
      Effects.cleanupParagraphs(mEditor);
  }
 

private void clean() {
      Editable text = mEditor.getText();
      BaseInputConnection.removeComposingSpans(text);

/* 
  Cleanup ParagraphStyles to:
  - make sure spans are applied to whole paragraphs
  - remove obsolete spans
  - Note: the sequence is important
*/
      Effects.cleanupParagraphs(mEditor);
  }
 

/**
 * Whether we want to be showing inline autocomplete results. We don't want to show them as the
 * user deletes input. Also if there is a composition (e.g. while using the Japanese IME),
 * we must not autocomplete or we'll destroy the composition.
 * @return Whether we want to be showing inline autocomplete results.
 */
public boolean shouldAutocomplete() {
    if (mLastUrlEditWasDelete) return false;
    Editable text = getText();

    return isCursorAtEndOfTypedText()
            && !isPastedText()
            && !isHandlingBatchInput()
            && BaseInputConnection.getComposingSpanEnd(text)
                    == BaseInputConnection.getComposingSpanStart(text);
}
 

private void clean() {
    Editable text = mEditor.getText();
    BaseInputConnection.removeComposingSpans(text);

    /*
     Cleanup ParagraphStyles to:
      - make sure spans are applied to whole paragraphs
      - remove obsolete spans
      - Note: the sequence is important
    */
    Effects.cleanupParagraphs(mEditor);
}
 

/**
 * Whether we want to be showing inline autocomplete results. We don't want to show them as the
 * user deletes input. Also if there is a composition (e.g. while using the Japanese IME),
 * we must not autocomplete or we'll destroy the composition.
 * @return Whether we want to be showing inline autocomplete results.
 */
public boolean shouldAutocomplete() {
    if (mLastEditWasDelete) return false;
    Editable text = getText();

    return isCursorAtEndOfTypedText() && !isHandlingBatchInput()
            && BaseInputConnection.getComposingSpanEnd(text)
            == BaseInputConnection.getComposingSpanStart(text);
}
 

/**
 * @param editable The editable.
 * @return Debug string for the given {@Editable}.
 */
static String getEditableDebugString(Editable editable) {
    return String.format(Locale.US, "Editable {[%s] SEL[%d %d] COM[%d %d]}",
            editable.toString(), Selection.getSelectionStart(editable),
            Selection.getSelectionEnd(editable),
            BaseInputConnection.getComposingSpanStart(editable),
            BaseInputConnection.getComposingSpanEnd(editable));
}
 

public void testResumeSuggestionOnBackspace() {
    final String STRING_TO_TYPE = "and this ";
    final int typedLength = STRING_TO_TYPE.length();
    type(STRING_TO_TYPE);
    assertEquals("resume suggestion on backspace", -1,
            BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals("resume suggestion on backspace", -1,
            BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
    sendUpdateForCursorMoveTo(typedLength);
    type(Constants.CODE_DELETE);
    assertEquals("resume suggestion on backspace", 4,
            BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals("resume suggestion on backspace", 8,
            BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
}
 

private void helperTestComposing(final String wordToType, final boolean shouldBeComposing) {
    mEditText.setText("");
    type(wordToType);
    assertEquals("start composing inside text", shouldBeComposing ? 0 : -1,
            BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals("start composing inside text", shouldBeComposing ? wordToType.length() : -1,
            BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
}
 

public void testDontResumeSuggestionOnBackspace() {
    final String WORD_TO_TYPE = "and this ";
    changeKeyboardLocaleAndDictLocale("th", "en_US");
    type(WORD_TO_TYPE);
    assertEquals("don't resume suggestion on backspace", -1,
            BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals("don't resume suggestion on backspace", -1,
            BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
    type(" ");
    type(Constants.CODE_DELETE);
    assertEquals("don't resume suggestion on backspace", -1,
            BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals("don't resume suggestion on backspace", -1,
            BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
}
 

public void testMovingCursorInsideWordAndType() {
    final String WORD_TO_TYPE = "abcdefgh";
    final int typedLength = WORD_TO_TYPE.length();
    final int CURSOR_POS = 4;
    changeKeyboardLocaleAndDictLocale("th", "en_US");
    type(WORD_TO_TYPE);
    mLatinIME.onUpdateSelection(0, 0, typedLength, typedLength, 0, typedLength);
    sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
    runMessages();
    mInputConnection.setSelection(CURSOR_POS, CURSOR_POS);
    mLatinIME.onUpdateSelection(typedLength, typedLength,
            CURSOR_POS, CURSOR_POS, 0, typedLength);
    sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
    runMessages();
    assertEquals("move cursor inside text", 0,
            BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals("move cursor inside text", typedLength,
            BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
    type("x");
    sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
    sleep(DELAY_TO_WAIT_FOR_PREDICTIONS_MILLIS);
    runMessages();
    assertEquals("start typing while cursor inside composition", CURSOR_POS,
            BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals("start typing while cursor inside composition", CURSOR_POS + 1,
            BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
}
 

@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
    return new BaseInputConnection(this, false); //this is needed for #dispatchKeyEvent() to be notified.
}
 

@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
    return new BaseInputConnection(this, false); //this is needed for #dispatchKeyEvent() to be notified.
}
 

@Override
public boolean setComposingText(CharSequence text, int newCursorPosition) {
    Editable currentText = getText();
    int autoCompleteSpanStart = currentText.getSpanStart(mAutocompleteSpan);
    if (autoCompleteSpanStart >= 0) {
        int composingEnd = BaseInputConnection.getComposingSpanEnd(currentText);

        // On certain device/keyboard combinations, the composing regions are specified
        // with a noticeable delay after the initial character is typed, and in certain
        // circumstances it does not check that the current state of the text matches the
        // expectations of it's composing region.
        // For example, you can be typing:
        //   chrome://f
        // Chrome will autocomplete to:
        //   chrome://f[lags]
        // And after the autocomplete has been set, the keyboard will set the composing
        // region to the last character and it assumes it is 'f' as it was the last
        // character the keyboard sent.  If we commit this composition, the text will
        // look like:
        //   chrome://flag[f]
        // And if we use the autocomplete clearing logic below, it will look like:
        //   chrome://f[f]
        // To work around this, we see if the composition matches all the characters prior
        // to the autocomplete and just readjust the composing region to be that subset.
        //
        // See crbug.com/366732
        if (composingEnd == currentText.length()
                && autoCompleteSpanStart >= text.length()
                && TextUtils.equals(
                        currentText.subSequence(
                                autoCompleteSpanStart - text.length(),
                                autoCompleteSpanStart),
                        text)) {
            setComposingRegion(
                    autoCompleteSpanStart - text.length(), autoCompleteSpanStart);
        }

        // Once composing text is being modified, the autocomplete text has been accepted
        // or has to be deleted.
        mAutocompleteSpan.clearSpan();
        Selection.setSelection(currentText, autoCompleteSpanStart);
        currentText.delete(autoCompleteSpanStart, currentText.length());
    }
    return super.setComposingText(text, newCursorPosition);
}
 

@Override
public void afterTextChanged(Editable newText) {
    if (formattingCancelled || selfEdit || mask == null || noChanges) {
        formattingCancelled = false;
        noChanges = false;
        return;
    }

    String formatted = mask.toString();

    final int cursorPosition = diffMeasures.getCursorPosition();
    // force change text of EditText we're attached to
    // only in case it's necessary (formatted text differs from inputted)
    if (!formatted.equals(newText.toString())) {
        int start = BaseInputConnection.getComposingSpanStart(newText);
        int end = cursorPosition > newText.length() ? newText.length() : cursorPosition;
        CharSequence pasted;
        if (start == -1 || end == -1) {
            pasted = formatted;
        } else {
            SpannableStringBuilder sb = new SpannableStringBuilder();
            sb.append(formatted.substring(0, start));
            SpannableString composing = new SpannableString(formatted.substring(start, end));
            // void setComposingSpans(Spannable text, int start, int end) in BaseInputConnection is hide api
            BaseInputConnection.setComposingSpans(composing);
            sb.append(composing);
            sb.append(formatted.substring(end, formatted.length()));
            pasted = sb;
        }
        selfEdit = true;
        newText.replace(0, newText.length(), pasted, 0, formatted.length());
        selfEdit = false;
    }

    if (0 <= cursorPosition && cursorPosition <= newText.length()) {
        setSelection(cursorPosition);
    }

    textBeforeChange = null;

    if (callback != null) {
        callback.onTextFormatted(this, toString());
    }
}
 

@Override
public boolean setComposingText(CharSequence text, int newCursorPosition) {
    Editable currentText = getText();
    int autoCompleteSpanStart = currentText.getSpanStart(mAutocompleteSpan);
    if (autoCompleteSpanStart >= 0) {
        int composingEnd = BaseInputConnection.getComposingSpanEnd(currentText);

        // On certain device/keyboard combinations, the composing regions are specified
        // with a noticeable delay after the initial character is typed, and in certain
        // circumstances it does not check that the current state of the text matches the
        // expectations of it's composing region.
        // For example, you can be typing:
        //   chrome://f
        // Chrome will autocomplete to:
        //   chrome://f[lags]
        // And after the autocomplete has been set, the keyboard will set the composing
        // region to the last character and it assumes it is 'f' as it was the last
        // character the keyboard sent.  If we commit this composition, the text will
        // look like:
        //   chrome://flag[f]
        // And if we use the autocomplete clearing logic below, it will look like:
        //   chrome://f[f]
        // To work around this, we see if the composition matches all the characters prior
        // to the autocomplete and just readjust the composing region to be that subset.
        //
        // See crbug.com/366732
        if (composingEnd == currentText.length()
                && autoCompleteSpanStart >= text.length()
                && TextUtils.equals(
                        currentText.subSequence(
                                autoCompleteSpanStart - text.length(),
                                autoCompleteSpanStart),
                        text)) {
            setComposingRegion(
                    autoCompleteSpanStart - text.length(), autoCompleteSpanStart);
        }

        // Once composing text is being modified, the autocomplete text has been accepted
        // or has to be deleted.
        mAutocompleteSpan.clearSpan();
        Selection.setSelection(currentText, autoCompleteSpanStart);
        currentText.delete(autoCompleteSpanStart, currentText.length());
    }
    return super.setComposingText(text, newCursorPosition);
}
 

@Override
public boolean setComposingText(CharSequence text, int newCursorPosition) {
    if (DEBUG) Log.i(TAG, "setComposingText: [%s]", text);
    Editable currentText = getText();
    int autoCompleteSpanStart = currentText.getSpanStart(mAutocompleteSpan);
    if (autoCompleteSpanStart >= 0) {
        int composingEnd = BaseInputConnection.getComposingSpanEnd(currentText);

        // On certain device/keyboard combinations, the composing regions are specified
        // with a noticeable delay after the initial character is typed, and in certain
        // circumstances it does not check that the current state of the text matches the
        // expectations of it's composing region.
        // For example, you can be typing:
        //   chrome://f
        // Chrome will autocomplete to:
        //   chrome://f[lags]
        // And after the autocomplete has been set, the keyboard will set the composing
        // region to the last character and it assumes it is 'f' as it was the last
        // character the keyboard sent.  If we commit this composition, the text will
        // look like:
        //   chrome://flag[f]
        // And if we use the autocomplete clearing logic below, it will look like:
        //   chrome://f[f]
        // To work around this, we see if the composition matches all the characters prior
        // to the autocomplete and just readjust the composing region to be that subset.
        //
        // See crbug.com/366732
        if (composingEnd == currentText.length() && autoCompleteSpanStart >= text.length()
                && TextUtils.equals(
                           currentText.subSequence(autoCompleteSpanStart - text.length(),
                                   autoCompleteSpanStart),
                           text)) {
            setComposingRegion(
                    autoCompleteSpanStart - text.length(), autoCompleteSpanStart);
        }

        // Once composing text is being modified, the autocomplete text has been accepted
        // or has to be deleted.
        mAutocompleteSpan.clearSpan();
        Selection.setSelection(currentText, autoCompleteSpanStart);
        currentText.delete(autoCompleteSpanStart, currentText.length());
    }
    return super.setComposingText(text, newCursorPosition);
}
 

private void ensureComposingSpanPos(final String message, final int from, final int to) {
    assertEquals(message, from, BaseInputConnection.getComposingSpanStart(mEditText.getText()));
    assertEquals(message, to, BaseInputConnection.getComposingSpanEnd(mEditText.getText()));
}