Example usage for android.view View ACCESSIBILITY_LIVE_REGION_POLITE

Introduction

In this page you can find the example usage for android.view View ACCESSIBILITY_LIVE_REGION_POLITE.

Prototype

int ACCESSIBILITY_LIVE_REGION_POLITE

To view the source code for android.view View ACCESSIBILITY_LIVE_REGION_POLITE.

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Document

Live region mode specifying that accessibility services should announce changes to this view.

Usage

From source file:com.android.screenspeak.formatter.LiveViewFormatter.java

@Override
public boolean accept(AccessibilityEvent event, ScreenSpeakService context) {
    if (event.getEventType() != AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED)
        return false;

    AccessibilityNodeInfoCompat node = new AccessibilityNodeInfoCompat(event.getSource());
    if (node.getInfo() == null) {
        return false;
    }//from  ww  w .j a va 2 s .  c o  m

    int liveRegion = node.getLiveRegion();
    switch (liveRegion) {
    case View.ACCESSIBILITY_LIVE_REGION_POLITE:
        return true;
    case View.ACCESSIBILITY_LIVE_REGION_ASSERTIVE:
        return true;
    case View.ACCESSIBILITY_LIVE_REGION_NONE:
        return false;
    default:
        return false;
    }
}

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From source file:com.android.talkback.formatter.LiveViewFormatter.java

@Override
public boolean accept(AccessibilityEvent event, TalkBackService context) {
    if (event.getEventType() != AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED)
        return false;

    AccessibilityRecordCompat record = AccessibilityEventCompat.asRecord(event);
    AccessibilityNodeInfoCompat node = record.getSource();
    if (node == null) {
        return false;
    }//  w ww.  j av a 2s  .  c  o m

    int liveRegion = node.getLiveRegion();
    node.recycle();

    switch (liveRegion) {
    case View.ACCESSIBILITY_LIVE_REGION_POLITE:
        return true;
    case View.ACCESSIBILITY_LIVE_REGION_ASSERTIVE:
        return true;
    case View.ACCESSIBILITY_LIVE_REGION_NONE:
        return false;
    default:
        return false;
    }
}

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From source file:com.android.screenspeak.formatter.LiveViewFormatter.java

@Override
public boolean format(AccessibilityEvent event, ScreenSpeakService context, Utterance utterance) {
    AccessibilityNodeInfoCompat node = new AccessibilityNodeInfoCompat(event.getSource());
    if (node.getInfo() == null) {
        return false;
    }/*from   ww w.  j av  a 2s.co  m*/

    int liveRegion = node.getLiveRegion();
    switch (liveRegion) {
    case View.ACCESSIBILITY_LIVE_REGION_POLITE:
        break;
    case View.ACCESSIBILITY_LIVE_REGION_ASSERTIVE:
        utterance.getMetadata().putInt(Utterance.KEY_METADATA_QUEUING, SpeechController.QUEUE_MODE_INTERRUPT);
        break;
    case View.ACCESSIBILITY_LIVE_REGION_NONE:
        return false;
    default:
        return false;
    }

    CharSequence text = NodeSpeechRuleProcessor.getInstance().getDescriptionForNode(node, event);

    if (TextUtils.isEmpty(text)) {
        return false;
    }

    utterance.addSpoken(text);
    utterance.addSpokenFlag(FeedbackItem.FLAG_SKIP_DUPLICATE);
    return true;
}

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From source file:com.android.talkback.formatter.LiveViewFormatter.java

@Override
public boolean format(AccessibilityEvent event, TalkBackService context, Utterance utterance) {
    AccessibilityNodeInfoCompat node = new AccessibilityNodeInfoCompat(event.getSource());
    if (node.getInfo() == null) {
        return false;
    }//from   ww  w.  j  a v  a 2s  .  c  om

    int liveRegion = node.getLiveRegion();
    switch (liveRegion) {
    case View.ACCESSIBILITY_LIVE_REGION_POLITE:
        break;
    case View.ACCESSIBILITY_LIVE_REGION_ASSERTIVE:
        utterance.getMetadata().putInt(Utterance.KEY_METADATA_QUEUING, SpeechController.QUEUE_MODE_INTERRUPT);
        break;
    case View.ACCESSIBILITY_LIVE_REGION_NONE:
        return false;
    default:
        return false;
    }

    CharSequence text = NodeSpeechRuleProcessor.getInstance().getDescriptionForTree(node, event, node);

    if (TextUtils.isEmpty(text)) {
        return false;
    }

    utterance.addSpoken(text);
    utterance.addSpokenFlag(FeedbackItem.FLAG_SKIP_DUPLICATE);
    return true;
}

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From source file:com.android.screenspeak.eventprocessor.ProcessorEventQueue.java

/**
 * Computes the queuing mode for the current utterance.
 *
 * @param utterance to compute queuing from
 * @return A queuing mode, one of://from   w  ww . j av  a2  s.  co  m
 *         <ul>
 *         <li>{@link SpeechController#QUEUE_MODE_INTERRUPT}
 *         <li>{@link SpeechController#QUEUE_MODE_QUEUE}
 *         <li>{@link SpeechController#QUEUE_MODE_UNINTERRUPTIBLE}
 *         </ul>
 */
private int computeQueuingMode(Utterance utterance, AccessibilityEvent event) {
    final Bundle metadata = utterance.getMetadata();
    final int eventType = event.getEventType();

    // Queue events that occur automatically after window state changes.
    if (((event.getEventType() & AccessibilityEventProcessor.AUTOMATIC_AFTER_STATE_CHANGE) != 0)
            && ((event.getEventTime()
                    - mLastWindowStateChanged) < AccessibilityEventProcessor.DELAY_AUTO_AFTER_STATE)) {
        return SpeechController.QUEUE_MODE_QUEUE;
    }

    if (eventType == AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED) {
        AccessibilityRecordCompat record = AccessibilityEventCompat.asRecord(event);
        AccessibilityNodeInfoCompat node = record.getSource();
        if (node != null) {
            int liveRegionMode = node.getLiveRegion();
            if (liveRegionMode == View.ACCESSIBILITY_LIVE_REGION_POLITE) {
                return SpeechController.QUEUE_MODE_QUEUE;
            }
        }
    }

    int queueMode = metadata.getInt(Utterance.KEY_METADATA_QUEUING, SpeechController.QUEUE_MODE_INTERRUPT);

    // Always collapse events of the same type.
    if (mLastEventType == eventType && queueMode != SpeechController.QUEUE_MODE_UNINTERRUPTIBLE) {
        return SpeechController.QUEUE_MODE_INTERRUPT;
    }

    mLastEventType = eventType;

    return queueMode;
}

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From source file:com.facebook.react.uimanager.BaseViewManager.java

@ReactProp(name = PROP_ACCESSIBILITY_LIVE_REGION)
public void setAccessibilityLiveRegion(T view, String liveRegion) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        if (liveRegion == null || liveRegion.equals("none")) {
            view.setAccessibilityLiveRegion(View.ACCESSIBILITY_LIVE_REGION_NONE);
        } else if (liveRegion.equals("polite")) {
            view.setAccessibilityLiveRegion(View.ACCESSIBILITY_LIVE_REGION_POLITE);
        } else if (liveRegion.equals("assertive")) {
            view.setAccessibilityLiveRegion(View.ACCESSIBILITY_LIVE_REGION_ASSERTIVE);
        }//from w  ww.  j  a v a  2 s . c  o m
    }
}

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