Example usage for android.support.v4.view.accessibility AccessibilityNodeInfoCompat getParent

Introduction

In this page you can find the example usage for android.support.v4.view.accessibility AccessibilityNodeInfoCompat getParent.

Prototype

public AccessibilityNodeInfoCompat getParent() 

Source Link

Document

Gets the parent.

Usage

From source file:Main.java

private static AccessibilityNodeInfoCompat refreshFromParent(AccessibilityNodeInfoCompat node) {
    AccessibilityNodeInfoCompat parent = node.getParent();
    if (parent != null) {
        try {/* w w w.  j a v  a  2s  . c  o  m*/
            int childCount = parent.getChildCount();
            for (int i = 0; i < childCount; ++i) {
                AccessibilityNodeInfoCompat child = parent.getChild(i);
                if (node.equals(child)) {
                    return child;
                }
                recycleNodes(child);
            }
        } finally {
            parent.recycle();
        }
    }
    return null;
}

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From source file:Main.java

/**
 * Returns the root node of the tree containing {@code node}.
 *///from   w w  w  .j  av  a2s.  com
public static AccessibilityNodeInfoCompat getRoot(AccessibilityNodeInfoCompat node) {
    if (node == null) {
        return null;
    }

    AccessibilityNodeInfoCompat current = null;
    AccessibilityNodeInfoCompat parent = AccessibilityNodeInfoCompat.obtain(node);

    do {
        current = parent;
        parent = current.getParent();
    } while (parent != null);

    return current;
}

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From source file:Main.java

private static AccessibilityNodeInfoCompat refreshFromChild(AccessibilityNodeInfoCompat node) {
    if (node.getChildCount() > 0) {
        AccessibilityNodeInfoCompat firstChild = node.getChild(0);
        if (firstChild != null) {
            AccessibilityNodeInfoCompat parent = firstChild.getParent();
            firstChild.recycle();// w  w w  . j  a  v a2s.  c om
            if (node.equals(parent)) {
                return parent;
            } else {
                recycleNodes(parent);
            }
        }
    }
    return null;
}

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From source file:com.android.utils.WebInterfaceUtils.java

/**
 * Determines whether or not the given node contains native web content (and not ChromeVox).
 *
 * @param node The node to evaluate/*ww  w.j  av a 2s . c  om*/
 * @return {@code true} if the node contains native web content, {@code false} otherwise
 */
public static boolean hasNativeWebContent(AccessibilityNodeInfoCompat node) {
    if (node == null) {
        return false;
    }

    if (!supportsWebActions(node)) {
        return false;
    }

    // ChromeVox does not have sub elements, so if the parent element also has web content
    // this cannot be ChromeVox.
    AccessibilityNodeInfoCompat parent = node.getParent();
    if (supportsWebActions(parent)) {
        if (parent != null) {
            parent.recycle();
        }
        return true;
    }

    if (parent != null) {
        parent.recycle();
    }

    // ChromeVox never has child elements
    return node.getChildCount() > 0;
}

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From source file:com.example.accessibility.OverlayManager.java

public static AccessibilityNodeInfoCompat getRoot(AccessibilityNodeInfoCompat node) {
    if (node == null) {
        return null;
    }//  w  w  w . j  ava  2s  . c o  m

    AccessibilityNodeInfoCompat current = null;
    AccessibilityNodeInfoCompat parent = AccessibilityNodeInfoCompat.obtain(node);

    do {
        current = parent;
        parent = current.getParent();
    } while (parent != null);

    return current;
}

---

From source file:com.android.utils.WebInterfaceUtils.java

public static String[] getSupportedHtmlElements(AccessibilityNodeInfoCompat node) {
    HashSet<AccessibilityNodeInfoCompat> visitedNodes = new HashSet<AccessibilityNodeInfoCompat>();

    while (node != null) {
        if (visitedNodes.contains(node)) {
            return null;
        }/*from ww  w.j av  a  2  s.co m*/

        visitedNodes.add(node);

        Bundle bundle = node.getExtras();
        CharSequence supportedHtmlElements = bundle.getCharSequence(ACTION_ARGUMENT_HTML_ELEMENT_STRING_VALUES);

        if (supportedHtmlElements != null) {
            return supportedHtmlElements.toString().split(",");
        }

        node = node.getParent();
    }

    return null;
}

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From source file:com.android.talkback.speechrules.RulePagerPage.java

@Override
public boolean accept(AccessibilityNodeInfoCompat node, AccessibilityEvent event) {
    if (node != null) {
        AccessibilityNodeInfoCompat parent = node.getParent();
        if (parent != null) {
            try {
                int visibleChildren = 0;
                int totalChildren = parent.getChildCount();
                for (int i = 0; i < totalChildren; ++i) {
                    AccessibilityNodeInfoCompat child = parent.getChild(i);
                    if (child != null) {
                        if (child.isVisibleToUser()) {
                            visibleChildren++;
                        }//from   w  w w. j ava 2 s.  c  om
                        child.recycle();
                    }
                }
                return Role.getRole(parent) == Role.ROLE_PAGER && visibleChildren == 1;
            } finally {
                parent.recycle();
            }
        }
    }

    return false;
}

---

From source file:com.google.android.marvin.utils.HighlightBoundsView.java

private boolean isValidNode(AccessibilityNodeInfoCompat node) {
    final AccessibilityNodeInfoCompat parent = node.getParent();

    if (parent != null) {
        parent.recycle();/*  www . j  av  a2s  .  com*/
        return true;
    }

    final int childCount = node.getChildCount();

    for (int i = 0; i < childCount; i++) {
        final AccessibilityNodeInfoCompat child = node.getChild(i);

        if (child != null) {
            child.recycle();
            return true;
        }
    }

    return false;
}

---

From source file:com.android.utils.WebInterfaceUtils.java

/**
 * Determines whether or not the given node contains ChromeVox content.
 *
 * @param node The node to evaluate//from   w w  w .j a  v  a 2  s.  co  m
 * @return {@code true} if the node contains ChromeVox content, {@code false} otherwise
 */
public static boolean hasLegacyWebContent(AccessibilityNodeInfoCompat node) {
    if (node == null) {
        return false;
    }

    // TODO: Need better checking for native versus legacy web content.
    // Right now Firefox is accidentally treated as legacy web content using the current
    // detection routines; the `isNodeFromFirefox` check blacklists any Firefox that supports
    // the native web actions from being treated as "legacy" content.
    // Once we have resolved this issue, remove the `isNodeFromFirefox` disjunct from the check.
    if (!supportsWebActions(node) || isNodeFromFirefox(node)) {
        return false;
    }

    // ChromeVox does not have sub elements, so if the parent element also has web content
    // this cannot be ChromeVox.
    AccessibilityNodeInfoCompat parent = node.getParent();
    if (supportsWebActions(parent)) {
        if (parent != null) {
            parent.recycle();
        }

        return false;
    }

    if (parent != null) {
        parent.recycle();
    }

    // ChromeVox never has child elements
    return node.getChildCount() == 0;
}

---

From source file:assistive.com.scanme.com.googlecode.eyesfree.utils.AccessibilityNodeInfoUtils.java

/**
 * Determines whether a node is a top-level item in a scrollable container.
 *
 * @param node The node to test.//from   ww w  . ja va 2  s .c  om
 * @return {@code true} if {@code node} is a top-level item in a scrollable
 *         container.
 */
public static boolean isTopLevelScrollItem(Context context, AccessibilityNodeInfoCompat node) {
    if (node == null) {
        return false;
    }

    AccessibilityNodeInfoCompat parent = null;

    try {
        parent = node.getParent();
        if (parent == null) {
            // Not a child node of anything.
            return false;
        }

        if (isScrollable(node)) {
            return true;
        }

        // AdapterView, ScrollView, and HorizontalScrollView are focusable
        // containers, but Spinner is a special case.
        // TODO: Rename or break up this method, since it actually returns
        // whether the parent is scrollable OR is a focusable container that
        // should not block its children from receiving focus.
        if (nodeMatchesAnyClassByType(context, parent, android.widget.AdapterView.class,
                android.widget.ScrollView.class, android.widget.HorizontalScrollView.class,
                CLASS_TOUCHWIZ_TWADAPTERVIEW)
                && !nodeMatchesAnyClassByType(context, parent, android.widget.Spinner.class)) {
            return true;
        }

        return false;
    } finally {
        recycleNodes(parent);
    }
}

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