Examples with AccessibilityNodeInfo android.view.accessibility.AccessibilityNodeInfo used on opensource projects

Example 76 with AccessibilityNodeInfo

use of android.view.accessibility.AccessibilityNodeInfo in project android_frameworks_base by DirtyUnicorns.

the class ExploreByTouchHelper method createNodeForHost.

/**
     * Constructs and returns an {@link AccessibilityNodeInfo} for the
     * host view populated with its virtual descendants.
     *
     * @return An {@link AccessibilityNodeInfo} for the parent node.
     */
private AccessibilityNodeInfo createNodeForHost() {
    final AccessibilityNodeInfo node = AccessibilityNodeInfo.obtain(mView);
    mView.onInitializeAccessibilityNodeInfo(node);
    final int realNodeCount = node.getChildCount();
    // Allow the client to populate the host node.
    onPopulateNodeForHost(node);
    // Add the virtual descendants.
    if (mTempArray == null) {
        mTempArray = new IntArray();
    } else {
        mTempArray.clear();
    }
    final IntArray virtualViewIds = mTempArray;
    getVisibleVirtualViews(virtualViewIds);
    if (realNodeCount > 0 && virtualViewIds.size() > 0) {
        throw new RuntimeException("Views cannot have both real and virtual children");
    }
    final int N = virtualViewIds.size();
    for (int i = 0; i < N; i++) {
        node.addChild(mView, virtualViewIds.get(i));
    }
    return node;
}

Example 77 with AccessibilityNodeInfo

use of android.view.accessibility.AccessibilityNodeInfo in project android_frameworks_base by DirtyUnicorns.

the class ExploreByTouchHelper method createNodeForChild.

/**
     * Constructs and returns an {@link AccessibilityNodeInfo} for the
     * specified item. Automatically manages accessibility focus actions.
     * <p>
     * Allows the implementing class to specify most node properties, but
     * overrides the following:
     * <ul>
     * <li>{@link AccessibilityNodeInfo#setPackageName}
     * <li>{@link AccessibilityNodeInfo#setClassName}
     * <li>{@link AccessibilityNodeInfo#setParent(View)}
     * <li>{@link AccessibilityNodeInfo#setSource(View, int)}
     * <li>{@link AccessibilityNodeInfo#setVisibleToUser}
     * <li>{@link AccessibilityNodeInfo#setBoundsInScreen(Rect)}
     * </ul>
     * <p>
     * Uses the bounds of the parent view and the parent-relative bounding
     * rectangle specified by
     * {@link AccessibilityNodeInfo#getBoundsInParent} to automatically
     * update the following properties:
     * <ul>
     * <li>{@link AccessibilityNodeInfo#setVisibleToUser}
     * <li>{@link AccessibilityNodeInfo#setBoundsInParent}
     * </ul>
     *
     * @param virtualViewId The virtual view id for item for which to construct
     *            a node.
     * @return An {@link AccessibilityNodeInfo} for the specified item.
     */
private AccessibilityNodeInfo createNodeForChild(int virtualViewId) {
    ensureTempRects();
    final Rect tempParentRect = mTempParentRect;
    final int[] tempGlobalRect = mTempGlobalRect;
    final Rect tempScreenRect = mTempScreenRect;
    final AccessibilityNodeInfo node = AccessibilityNodeInfo.obtain();
    // Ensure the client has good defaults.
    node.setEnabled(true);
    node.setClassName(DEFAULT_CLASS_NAME);
    node.setBoundsInParent(INVALID_PARENT_BOUNDS);
    // Allow the client to populate the node.
    onPopulateNodeForVirtualView(virtualViewId, node);
    // Make sure the developer is following the rules.
    if ((node.getText() == null) && (node.getContentDescription() == null)) {
        throw new RuntimeException("Callbacks must add text or a content description in " + "populateNodeForVirtualViewId()");
    }
    node.getBoundsInParent(tempParentRect);
    if (tempParentRect.equals(INVALID_PARENT_BOUNDS)) {
        throw new RuntimeException("Callbacks must set parent bounds in " + "populateNodeForVirtualViewId()");
    }
    final int actions = node.getActions();
    if ((actions & AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS) != 0) {
        throw new RuntimeException("Callbacks must not add ACTION_ACCESSIBILITY_FOCUS in " + "populateNodeForVirtualViewId()");
    }
    if ((actions & AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS) != 0) {
        throw new RuntimeException("Callbacks must not add ACTION_CLEAR_ACCESSIBILITY_FOCUS in " + "populateNodeForVirtualViewId()");
    }
    // Don't allow the client to override these properties.
    node.setPackageName(mView.getContext().getPackageName());
    node.setSource(mView, virtualViewId);
    node.setParent(mView);
    // Manage internal accessibility focus state.
    if (mFocusedVirtualViewId == virtualViewId) {
        node.setAccessibilityFocused(true);
        node.addAction(AccessibilityAction.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    } else {
        node.setAccessibilityFocused(false);
        node.addAction(AccessibilityAction.ACTION_ACCESSIBILITY_FOCUS);
    }
    // Set the visibility based on the parent bound.
    if (intersectVisibleToUser(tempParentRect)) {
        node.setVisibleToUser(true);
        node.setBoundsInParent(tempParentRect);
    }
    // Calculate screen-relative bound.
    mView.getLocationOnScreen(tempGlobalRect);
    final int offsetX = tempGlobalRect[0];
    final int offsetY = tempGlobalRect[1];
    tempScreenRect.set(tempParentRect);
    tempScreenRect.offset(offsetX, offsetY);
    node.setBoundsInScreen(tempScreenRect);
    return node;
}

Example 78 with AccessibilityNodeInfo

use of android.view.accessibility.AccessibilityNodeInfo in project android_frameworks_base by DirtyUnicorns.

the class TextView method onInitializeAccessibilityNodeInfoInternal.

/** @hide */
@Override
public void onInitializeAccessibilityNodeInfoInternal(AccessibilityNodeInfo info) {
    super.onInitializeAccessibilityNodeInfoInternal(info);
    final boolean isPassword = hasPasswordTransformationMethod();
    info.setPassword(isPassword);
    info.setText(getTextForAccessibility());
    if (mBufferType == BufferType.EDITABLE) {
        info.setEditable(true);
        if (isEnabled()) {
            info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SET_TEXT);
        }
    }
    if (mEditor != null) {
        info.setInputType(mEditor.mInputType);
        if (mEditor.mError != null) {
            info.setContentInvalid(true);
            info.setError(mEditor.mError);
        }
    }
    if (!TextUtils.isEmpty(mText)) {
        info.addAction(AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY);
        info.addAction(AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY);
        info.setMovementGranularities(AccessibilityNodeInfo.MOVEMENT_GRANULARITY_CHARACTER | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_WORD | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PARAGRAPH | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE);
        info.addAction(AccessibilityNodeInfo.ACTION_SET_SELECTION);
    }
    if (isFocused()) {
        if (canCopy()) {
            info.addAction(AccessibilityNodeInfo.ACTION_COPY);
        }
        if (canPaste()) {
            info.addAction(AccessibilityNodeInfo.ACTION_PASTE);
        }
        if (canCut()) {
            info.addAction(AccessibilityNodeInfo.ACTION_CUT);
        }
        if (canShare()) {
            info.addAction(new AccessibilityNodeInfo.AccessibilityAction(ACCESSIBILITY_ACTION_SHARE, getResources().getString(com.android.internal.R.string.share)));
        }
        if (canProcessText()) {
            // also implies mEditor is not null.
            mEditor.mProcessTextIntentActionsHandler.onInitializeAccessibilityNodeInfo(info);
        }
    }
    // Check for known input filter types.
    final int numFilters = mFilters.length;
    for (int i = 0; i < numFilters; i++) {
        final InputFilter filter = mFilters[i];
        if (filter instanceof InputFilter.LengthFilter) {
            info.setMaxTextLength(((InputFilter.LengthFilter) filter).getMax());
        }
    }
    if (!isSingleLine()) {
        info.setMultiLine(true);
    }
}

Example 79 with AccessibilityNodeInfo

use of android.view.accessibility.AccessibilityNodeInfo in project android_frameworks_base by AOSPA.

the class QueryController method findNodePatternRecursive.

private AccessibilityNodeInfo findNodePatternRecursive(UiSelector subSelector, AccessibilityNodeInfo fromNode, int index, UiSelector originalPattern) {
    if (subSelector.isMatchFor(fromNode, index)) {
        if (subSelector.isLeaf()) {
            if (mPatternIndexer == 0) {
                if (DEBUG)
                    Log.d(LOG_TAG, formatLog(String.format("%s", subSelector.dumpToString(false))));
                return fromNode;
            } else {
                if (DEBUG)
                    Log.d(LOG_TAG, formatLog(String.format("%s", subSelector.dumpToString(false))));
                //count the pattern matched
                mPatternCounter++;
                //decrement until zero for the instance requested
                mPatternIndexer--;
                // At a leaf selector within a group and still not instance matched
                // then reset the  selector to continue search from current position
                // in the accessibility tree for the next pattern match up until the
                // pattern index hits 0.
                subSelector = originalPattern;
                // starting over with next pattern search so reset to parent level
                mLogIndent = mLogParentIndent;
            }
        } else {
            if (DEBUG)
                Log.d(LOG_TAG, formatLog(String.format("%s", subSelector.dumpToString(false))));
            if (subSelector.hasChildSelector()) {
                // next selector
                mLogIndent++;
                subSelector = subSelector.getChildSelector();
                if (subSelector == null) {
                    Log.e(LOG_TAG, "Error: A child selector without content");
                    return null;
                }
            } else if (subSelector.hasParentSelector()) {
                // next selector
                mLogIndent++;
                subSelector = subSelector.getParentSelector();
                if (subSelector == null) {
                    Log.e(LOG_TAG, "Error: A parent selector without content");
                    return null;
                }
                fromNode = fromNode.getParent();
                if (fromNode == null)
                    return null;
            }
        }
    }
    int childCount = fromNode.getChildCount();
    boolean hasNullChild = false;
    for (int i = 0; i < childCount; i++) {
        AccessibilityNodeInfo childNode = fromNode.getChild(i);
        if (childNode == null) {
            Log.w(LOG_TAG, String.format("AccessibilityNodeInfo returned a null child (%d of %d)", i, childCount));
            if (!hasNullChild) {
                Log.w(LOG_TAG, String.format("parent = %s", fromNode.toString()));
            }
            hasNullChild = true;
            continue;
        }
        if (!childNode.isVisibleToUser()) {
            if (DEBUG)
                Log.d(LOG_TAG, String.format("Skipping invisible child: %s", childNode.toString()));
            continue;
        }
        AccessibilityNodeInfo retNode = findNodePatternRecursive(subSelector, childNode, i, originalPattern);
        if (retNode != null) {
            return retNode;
        }
    }
    return null;
}

Example 80 with AccessibilityNodeInfo

use of android.view.accessibility.AccessibilityNodeInfo in project android_frameworks_base by AOSPA.

the class QueryController method findAccessibilityNodeInfo.

protected AccessibilityNodeInfo findAccessibilityNodeInfo(UiSelector selector, boolean isCounting) {
    mUiAutomatorBridge.waitForIdle();
    initializeNewSearch();
    if (DEBUG)
        Log.d(LOG_TAG, "Searching: " + selector);
    synchronized (mLock) {
        AccessibilityNodeInfo rootNode = getRootNode();
        if (rootNode == null) {
            Log.e(LOG_TAG, "Cannot proceed when root node is null. Aborted search");
            return null;
        }
        // Copy so that we don't modify the original's sub selectors
        UiSelector uiSelector = new UiSelector(selector);
        return translateCompoundSelector(uiSelector, rootNode, isCounting);
    }
}