Java Code Examples for android.view.accessibility.AccessibilityEvent#setBeforeText()

The following examples show how to use android.view.accessibility.AccessibilityEvent#setBeforeText() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: NumberPicker.java    From android_9.0.0_r45 with Apache License 2.0 5 votes vote down vote up 
/**
 * Updates the view of this NumberPicker. If displayValues were specified in
 * the string corresponding to the index specified by the current value will
 * be returned. Otherwise, the formatter specified in {@link #setFormatter}
 * will be used to format the number.
 *
 * @return Whether the text was updated.
 */
private boolean updateInputTextView() {
    /*
     * If we don't have displayed values then use the current number else
     * find the correct value in the displayed values for the current
     * number.
     */
    String text = (mDisplayedValues == null) ? formatNumber(mValue)
            : mDisplayedValues[mValue - mMinValue];
    if (!TextUtils.isEmpty(text)) {
        CharSequence beforeText = mInputText.getText();
        if (!text.equals(beforeText.toString())) {
            mInputText.setText(text);
            if (AccessibilityManager.getInstance(mContext).isEnabled()) {
                AccessibilityEvent event = AccessibilityEvent.obtain(
                        AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED);
                mInputText.onInitializeAccessibilityEvent(event);
                mInputText.onPopulateAccessibilityEvent(event);
                event.setFromIndex(0);
                event.setRemovedCount(beforeText.length());
                event.setAddedCount(text.length());
                event.setBeforeText(beforeText);
                event.setSource(NumberPicker.this,
                        AccessibilityNodeProviderImpl.VIRTUAL_VIEW_ID_INPUT);
                requestSendAccessibilityEvent(NumberPicker.this, event);
            }
            return true;
        }
    }

    return false;
}
Example 2
Source File: BrowserAccessibilityManager.java    From 365browser with Apache License 2.0 5 votes vote down vote up 
@CalledByNative
private void setAccessibilityEventTextChangedAttrs(AccessibilityEvent event,
        int fromIndex, int addedCount, int removedCount, String beforeText, String text) {
    event.setFromIndex(fromIndex);
    event.setAddedCount(addedCount);
    event.setRemovedCount(removedCount);
    event.setBeforeText(beforeText);
    event.getText().add(text);
}
Example 3
Source File: BrowserAccessibilityManager.java    From android-chromium with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
@CalledByNative
private void setAccessibilityEventTextChangedAttrs(AccessibilityEvent event,
        int fromIndex, int addedCount, int removedCount, String beforeText, String text) {
    event.setFromIndex(fromIndex);
    event.setAddedCount(addedCount);
    event.setRemovedCount(removedCount);
    event.setBeforeText(beforeText);
    event.getText().add(text);
}
Example 4
Source File: BrowserAccessibilityManager.java    From android-chromium with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
@CalledByNative
private void setAccessibilityEventTextChangedAttrs(AccessibilityEvent event,
        int fromIndex, int addedCount, int removedCount, String beforeText, String text) {
    event.setFromIndex(fromIndex);
    event.setAddedCount(addedCount);
    event.setRemovedCount(removedCount);
    event.setBeforeText(beforeText);
    event.getText().add(text);
}
Example 5
Source File: UrlBar.java    From delion with Apache License 2.0 4 votes vote down vote up 
@Override
public boolean commitText(CharSequence text, int newCursorPosition) {
    Editable currentText = getText();
    if (currentText == null) return super.commitText(text, newCursorPosition);

    int selectionStart = Selection.getSelectionStart(currentText);
    int selectionEnd = Selection.getSelectionEnd(currentText);
    int autocompleteIndex = currentText.getSpanStart(mAutocompleteSpan);
    // If the text being committed is a single character that matches the next character
    // in the selection (assumed to be the autocomplete text), we only move the text
    // selection instead clearing the autocomplete text causing flickering as the
    // autocomplete text will appear once the next suggestions are received.
    //
    // To be confident that the selection is an autocomplete, we ensure the selection
    // is at least one character and the end of the selection is the end of the
    // currently entered text.
    if (newCursorPosition == 1 && selectionStart > 0 && selectionStart != selectionEnd
            && selectionEnd >= currentText.length()
            && autocompleteIndex == selectionStart
            && text.length() == 1) {
        currentText.getChars(selectionStart, selectionStart + 1, mTempSelectionChar, 0);
        if (mTempSelectionChar[0] == text.charAt(0)) {

            // Since the text isn't changing, TalkBack won't read out the typed characters.
            // To work around this, explicitly send an accessibility event. crbug.com/416595
            if (mAccessibilityManager != null && mAccessibilityManager.isEnabled()) {
                AccessibilityEvent event = AccessibilityEvent.obtain(
                        AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED);
                event.setFromIndex(selectionStart);
                event.setRemovedCount(0);
                event.setAddedCount(1);
                event.setBeforeText(currentText.toString().substring(0, selectionStart));
                sendAccessibilityEventUnchecked(event);
            }

            setAutocompleteText(
                    currentText.subSequence(0, selectionStart + 1),
                    currentText.subSequence(selectionStart + 1, selectionEnd));
            if (!mInBatchEditMode) {
                notifyAutocompleteTextStateChanged(false);
            }
            return true;
        }
    }

    boolean retVal = super.commitText(text, newCursorPosition);

    // Ensure the autocomplete span is removed if it is no longer valid after committing the
    // text.
    if (getText().getSpanStart(mAutocompleteSpan) >= 0) clearAutocompleteSpanIfInvalid();

    return retVal;
}
Example 6
Source File: UrlBar.java    From AndroidChromium with Apache License 2.0 4 votes vote down vote up 
@Override
public boolean commitText(CharSequence text, int newCursorPosition) {
    Editable currentText = getText();
    if (currentText == null) return super.commitText(text, newCursorPosition);

    int selectionStart = Selection.getSelectionStart(currentText);
    int selectionEnd = Selection.getSelectionEnd(currentText);
    int autocompleteIndex = currentText.getSpanStart(mAutocompleteSpan);
    // If the text being committed is a single character that matches the next character
    // in the selection (assumed to be the autocomplete text), we only move the text
    // selection instead clearing the autocomplete text causing flickering as the
    // autocomplete text will appear once the next suggestions are received.
    //
    // To be confident that the selection is an autocomplete, we ensure the selection
    // is at least one character and the end of the selection is the end of the
    // currently entered text.
    if (newCursorPosition == 1 && selectionStart > 0 && selectionStart != selectionEnd
            && selectionEnd >= currentText.length()
            && autocompleteIndex == selectionStart
            && text.length() == 1) {
        currentText.getChars(selectionStart, selectionStart + 1, mTempSelectionChar, 0);
        if (mTempSelectionChar[0] == text.charAt(0)) {

            // Since the text isn't changing, TalkBack won't read out the typed characters.
            // To work around this, explicitly send an accessibility event. crbug.com/416595
            if (mAccessibilityManager != null && mAccessibilityManager.isEnabled()) {
                AccessibilityEvent event = AccessibilityEvent.obtain(
                        AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED);
                event.setFromIndex(selectionStart);
                event.setRemovedCount(0);
                event.setAddedCount(1);
                event.setBeforeText(currentText.toString().substring(0, selectionStart));
                sendAccessibilityEventUnchecked(event);
            }

            setAutocompleteText(
                    currentText.subSequence(0, selectionStart + 1),
                    currentText.subSequence(selectionStart + 1, selectionEnd));
            if (!mInBatchEditMode) {
                notifyAutocompleteTextStateChanged(false);
            }
            return true;
        }
    }

    boolean retVal = super.commitText(text, newCursorPosition);

    // Ensure the autocomplete span is removed if it is no longer valid after committing the
    // text.
    if (getText().getSpanStart(mAutocompleteSpan) >= 0) clearAutocompleteSpanIfInvalid();

    return retVal;
}
Example 7
Source File: AutocompleteEditText.java    From 365browser with Apache License 2.0 4 votes vote down vote up 
@Override
public boolean commitText(CharSequence text, int newCursorPosition) {
    if (DEBUG) Log.i(TAG, "commitText: [%s]", text);
    Editable currentText = getText();
    if (currentText == null) return super.commitText(text, newCursorPosition);

    int selectionStart = Selection.getSelectionStart(currentText);
    int selectionEnd = Selection.getSelectionEnd(currentText);
    int autocompleteIndex = currentText.getSpanStart(mAutocompleteSpan);
    // If the text being committed is a single character that matches the next character
    // in the selection (assumed to be the autocomplete text), we only move the text
    // selection instead clearing the autocomplete text causing flickering as the
    // autocomplete text will appear once the next suggestions are received.
    //
    // To be confident that the selection is an autocomplete, we ensure the selection
    // is at least one character and the end of the selection is the end of the
    // currently entered text.
    if (newCursorPosition == 1 && selectionStart > 0 && selectionStart != selectionEnd
            && selectionEnd >= currentText.length() && autocompleteIndex == selectionStart
            && text.length() == 1) {
        currentText.getChars(selectionStart, selectionStart + 1, mTempSelectionChar, 0);
        if (mTempSelectionChar[0] == text.charAt(0)) {
            // Since the text isn't changing, TalkBack won't read out the typed characters.
            // To work around this, explicitly send an accessibility event. crbug.com/416595
            if (mAccessibilityManager != null && mAccessibilityManager.isEnabled()) {
                AccessibilityEvent event = AccessibilityEvent.obtain(
                        AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED);
                event.setFromIndex(selectionStart);
                event.setRemovedCount(0);
                event.setAddedCount(1);
                event.setBeforeText(currentText.toString().substring(0, selectionStart));
                sendAccessibilityEventUnchecked(event);
            }

            setAutocompleteText(currentText.subSequence(0, selectionStart + 1),
                    currentText.subSequence(selectionStart + 1, selectionEnd));
            if (!mInBatchEditMode) {
                notifyAutocompleteTextStateChanged(false, false);
            }
            return true;
        }
    }

    boolean retVal = super.commitText(text, newCursorPosition);

    // Ensure the autocomplete span is removed if it is no longer valid after committing the
    // text.
    if (getText().getSpanStart(mAutocompleteSpan) >= 0) clearAutocompleteSpanIfInvalid();

    return retVal;
}