| /* |
| * Copyright (C) 2008 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #import "config.h" |
| #import "AccessibilityObject.h" |
| #import "ElementAncestorIterator.h" |
| #import "HTMLFieldSetElement.h" |
| #import "RenderObject.h" |
| #import "Settings.h" |
| |
| #if HAVE(ACCESSIBILITY) && PLATFORM(MAC) |
| |
| #import "WebAccessibilityObjectWrapperMac.h" |
| #import "Widget.h" |
| |
| namespace WebCore { |
| |
| void AccessibilityObject::detachFromParent() |
| { |
| if (isAttachment()) |
| overrideAttachmentParent(nullptr); |
| } |
| |
| void AccessibilityObject::overrideAttachmentParent(AccessibilityObject* parent) |
| { |
| if (!isAttachment()) |
| return; |
| |
| id parentWrapper = nil; |
| if (parent) { |
| if (parent->accessibilityIsIgnored()) |
| parent = parent->parentObjectUnignored(); |
| parentWrapper = parent->wrapper(); |
| } |
| |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdeprecated-declarations" |
| [[wrapper() attachmentView] accessibilitySetOverrideValue:parentWrapper forAttribute:NSAccessibilityParentAttribute]; |
| #pragma clang diagnostic pop |
| } |
| |
| bool AccessibilityObject::accessibilityIgnoreAttachment() const |
| { |
| // FrameView attachments are now handled by AccessibilityScrollView, |
| // so if this is the attachment, it should be ignored. |
| Widget* widget = nullptr; |
| if (isAttachment() && (widget = widgetForAttachmentView()) && widget->isFrameView()) |
| return true; |
| |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdeprecated-declarations" |
| if ([wrapper() attachmentView]) |
| return [[wrapper() attachmentView] accessibilityIsIgnored]; |
| #pragma clang diagnostic pop |
| |
| // Attachments are ignored by default (unless we determine that we should expose them). |
| return true; |
| } |
| |
| AccessibilityObjectInclusion AccessibilityObject::accessibilityPlatformIncludesObject() const |
| { |
| if (isMenuListPopup() || isMenuListOption()) |
| return AccessibilityObjectInclusion::IgnoreObject; |
| |
| if (roleValue() == AccessibilityRole::Caption) |
| return AccessibilityObjectInclusion::IgnoreObject; |
| |
| if (roleValue() == AccessibilityRole::Mark) |
| return AccessibilityObjectInclusion::IncludeObject; |
| |
| // Never expose an unknown object on the Mac. Clients of the AX API will not know what to do with it. |
| // Special case is when the unknown object is actually an attachment. |
| if (roleValue() == AccessibilityRole::Unknown && !isAttachment()) |
| return AccessibilityObjectInclusion::IgnoreObject; |
| |
| if (roleValue() == AccessibilityRole::Inline && !isStyleFormatGroup()) |
| return AccessibilityObjectInclusion::IgnoreObject; |
| |
| if (RenderObject* renderer = this->renderer()) { |
| // The legend element is ignored if it lives inside of a fieldset element that uses it to generate alternative text. |
| if (renderer->isLegend()) { |
| Element* element = this->element(); |
| if (element && ancestorsOfType<HTMLFieldSetElement>(*element).first()) |
| return AccessibilityObjectInclusion::IgnoreObject; |
| } |
| } |
| |
| return AccessibilityObjectInclusion::DefaultBehavior; |
| } |
| |
| bool AccessibilityObject::caretBrowsingEnabled() const |
| { |
| Frame* frame = this->frame(); |
| return frame && frame->settings().caretBrowsingEnabled(); |
| } |
| |
| void AccessibilityObject::setCaretBrowsingEnabled(bool on) |
| { |
| Frame* frame = this->frame(); |
| if (!frame) |
| return; |
| frame->settings().setCaretBrowsingEnabled(on); |
| } |
| |
| } // WebCore |
| |
| #endif // HAVE(ACCESSIBILITY) && PLATFORM(MAC) |