Example usage for android.view.accessibility AccessibilityEvent getSource

Introduction

In this page you can find the example usage for android.view.accessibility AccessibilityEvent getSource.

Prototype

public AccessibilityNodeInfo getSource() 

Source Link

Document

Gets the AccessibilityNodeInfo of the event source.

Usage

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

/**
 * Given an {@link AccessibilityEvent}, speaks a scroll position.
 *
 * @param event The source event./*w  w w . j  a v a2  s  . co  m*/
 */
private void handleScrollFeedback(AccessibilityEvent event) {
    final CharSequence text = getDescriptionForScrollEvent(event);
    if (TextUtils.isEmpty(text)) {
        return;
    }

    // don't pronounce non-visible nodes
    AccessibilityNodeInfo node = event.getSource();
    if (node != null && !node.isVisibleToUser()) {
        return;
    }

    // Use QUEUE mode so that we don't interrupt more important messages.
    mSpeechController.speak(text, SpeechController.QUEUE_MODE_QUEUE, 0, mSpeechParams);
}

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From source file:com.googlecode.eyesfree.brailleback.BrailleBackService.java

@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
    LogUtils.log(this, Log.VERBOSE, "Event: %s", event.toString());
    LogUtils.log(this, Log.VERBOSE, "Node: %s", event.getSource());
    if (mIMEHelper != null) {
        mIMEHelper.onAccessibilityEvent(event);
    }/*from w  ww .  j  a va2 s.  c  o  m*/
    if (mModeSwitcher != null) {
        mModeSwitcher.onObserveAccessibilityEvent(event);
        mModeSwitcher.onAccessibilityEvent(event);
    }
    if (mLabelManager != null) {
        mLabelManager.onAccessibilityEvent(event);
    }
}

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From source file:com.googlecode.eyesfree.brailleback.TreeDebugNavigationMode.java

@Override
public void onObserveAccessibilityEvent(AccessibilityEvent event) {
    AccessibilityNodeInfo source = event.getSource();
    if (source == null) {
        return;/* w  w w.ja v  a2s . c o  m*/
    }
    boolean isNewWindow = false;
    if (mCurrentNode == null || mCurrentNode.getWindowId() != source.getWindowId()) {
        isNewWindow = true;
    }
    int t = event.getEventType();
    boolean isInterestingEventType = false;
    if (t == AccessibilityEvent.TYPE_VIEW_SELECTED || t == AccessibilityEvent.TYPE_VIEW_FOCUSED
            || t == AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED
            || t != AccessibilityEvent.TYPE_VIEW_HOVER_ENTER) {
        isInterestingEventType = true;
    }
    if (isNewWindow || isInterestingEventType) {
        setPendingNode(source);
    }
}

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From source file:com.android.talkback.eventprocessor.ProcessorScreen.java

private int getWindowId(AccessibilityEvent event) {
    AccessibilityNodeInfo node = event.getSource();
    if (node == null) {
        return WINDOW_ID_NONE;
    }// w  w  w. j a  va 2 s  . c om

    int windowId = node.getWindowId();
    node.recycle();
    return windowId;
}

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From source file:com.android.talkback.eventprocessor.AccessibilityEventProcessorTest.java

@Override
public void afterEventReceived(AccessibilityEvent event) {
    if (mMatched) {
        return;/* w  ww . j a v  a  2 s .com*/
    }

    if (event.getEventType() == mMatchEventType) {
        if (mMatchNode == null) {
            mMatched = true;
        } else {
            AccessibilityNodeInfoCompat eventNode = new AccessibilityNodeInfoCompat(event.getSource());
            mMatched = mMatchNode.equals(eventNode);
        }
    }
}

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

private boolean isKeyboardEvent(AccessibilityEvent event) {
    if (event.getEventType() != AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED) {
        return false;
    }//w  w  w.  j ava  2s.c  o m

    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP) {
        // For platform since lollipop, check that the current window is an
        // Input Method.
        final AccessibilityNodeInfo source = event.getSource();
        if (source == null) {
            return false;
        }

        int windowId = source.getWindowId();
        WindowManager manager = new WindowManager();
        manager.setWindows(mService.getWindows());
        return manager.getWindowType(windowId) == AccessibilityWindowInfo.TYPE_INPUT_METHOD;
    } else {
        // For old platforms, we can't check the window type directly, so just
        // manually check the classname.
        return event.getClassName().equals("com.android.inputmethod.keyboard.Key");
    }
}

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From source file:com.android.talkback.eventprocessor.ProcessorScreen.java

private int getWindowType(AccessibilityEvent event) {
    if (event == null) {
        return WINDOW_TYPE_NONE;
    }/*from w ww  .  j  a  v  a 2 s .co m*/

    AccessibilityNodeInfo nodeInfo = event.getSource();
    if (nodeInfo == null) {
        return WINDOW_TYPE_NONE;
    }

    AccessibilityNodeInfoCompat nodeInfoCompat = new AccessibilityNodeInfoCompat(nodeInfo);
    AccessibilityWindowInfoCompat windowInfoCompat = nodeInfoCompat.getWindow();
    if (windowInfoCompat == null) {
        nodeInfoCompat.recycle();
        return WINDOW_TYPE_NONE;
    }

    int windowType = windowInfoCompat.getType();
    windowInfoCompat.recycle();
    nodeInfoCompat.recycle();

    return windowType;
}

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From source file:com.googlecode.eyesfree.testing.BaseAccessibilityInstrumentationTestCase.java

/**
 * Finds an {@link android.view.accessibility.AccessibilityNodeInfo} by View id in the active window.
 * The search is performed from the root node.
 *
 * @param viewId The id of a View.//from  w  w  w  .  j ava2s. c  o m
 * @return An {@link android.view.accessibility.AccessibilityNodeInfo} if found, null otherwise.
 */
protected final AccessibilityNodeInfo findAccessibilityNodeInfoByViewIdInActiveWindow(int viewId) {
    startRecordingEvents();

    final View view = getViewForId(viewId);
    assertNotNull("Obtain view from activity", view);

    final AccessibilityEvent event = AccessibilityEvent.obtain();
    event.setEnabled(false);
    event.setEventType(NODE_INFO_EVENT_TYPE);
    event.setParcelableData(SYNC_PARCELABLE);
    event.setSource(view);

    // Sending the event through the manager sets the event time and
    // may clear the source node. Only certain event types can be
    // dispatched (see the framework's AccessibilityManagerService
    // canDispatchAccessibilityEvent() method).
    mManager.sendAccessibilityEvent(event);

    final AccessibilityEvent syncedEvent = stopRecordingEventsAfter(mNodeInfoEventFilter);
    assertNotNull("Synchronized event queue", syncedEvent);

    final AccessibilityNodeInfo sourceNode = syncedEvent.getSource();
    assertNotNull("Obtained source node from event", sourceNode);

    return sourceNode;
}

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From source file:com.googlecode.eyesfree.brailleback.DefaultNavigationMode.java

private AccessibilityNodeInfoCompat getNodeFromEvent(AccessibilityEvent event) {
    AccessibilityNodeInfo node = event.getSource();
    if (node != null) {
        return new AccessibilityNodeInfoCompat(node);
    } else {/*  w  w  w .  j  av  a2s.  co m*/
        return null;
    }
}

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From source file:com.linroid.pushapp.service.ApkAutoInstallService.java

private void onProcessAccessibilityEvent(AccessibilityEvent event) {
    if (event.getSource() == null) {
        return;/*from  w w w . j  a va 2 s  . com*/
    }
    String packageName = event.getPackageName().toString();
    String className = event.getClassName().toString();
    String sourceText = event.getSource().getText() == null ? BuildConfig.VERSION_NAME
            : event.getSource().getText().toString().trim();
    if (packageName.equals(CLASS_NAME_PACKAGE_INSTALLER)
            || packageName.equals(CLASS_NAME_GOOGLE_PACKAGE_INSTALLER)) {
        if (isApplicationInstallEvent(event, className, sourceText)) {
            // 
            onApplicationInstall(event);
        } else if (hasAccessibilityNodeInfoByText(event,
                getString(R.string.str_accessibility_install_blocked))) {
            // 
            onApplicationInstall(event, false);
        } else if (isApplicationInstalledEvent(event, className, sourceText)) {
            // ?
            onApplicationInstalled(event);
        } else if (isApplicationInstallFailedEvent(event, className, sourceText)) {
            // 
            onInstallFail(event);
        } else if (className.equalsIgnoreCase(CLASS_NAME_APP_ALERT_DIALOG)) {
            // ??
            processAlertDialogEvent(event, className, sourceText);
        } else if (isApplicationUninstallEvent(event, className, sourceText)) {
            // ?
            onApplicationUninstall(event);
        } else if (isApplicationUninstalledEvent(event, className, sourceText)) {
            // ??
            onApplicationUninstalled(event);
        }
    } else if (packageName.equals(CLASS_NAME_LENOVO_SAFECENTER)) {
        processLenovoEvent(event, className, sourceText);
    }
}

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