Diff
Modified: trunk/LayoutTests/ChangeLog (220550 => 220551)
--- trunk/LayoutTests/ChangeLog 2017-08-10 22:08:34 UTC (rev 220550)
+++ trunk/LayoutTests/ChangeLog 2017-08-10 22:15:49 UTC (rev 220551)
@@ -1,3 +1,15 @@
+2017-08-10 Nan Wang <n_w...@apple.com>
+
+ AX: crash at WebCore::AccessibilityObject::supportsARIALiveRegion() const + 24
+ https://bugs.webkit.org/show_bug.cgi?id=175340
+ <rdar://problem/33782159>
+
+ Reviewed by Chris Fleizach.
+
+ * accessibility/add-children-pseudo-element-expected.txt: Added.
+ * accessibility/add-children-pseudo-element.html: Added.
+ * accessibility/resources/svg-circle.svg: Added.
+
2017-08-10 Chris Dumez <cdu...@apple.com>
[Beacon] Do connect-src CSP check on redirects as well
Added: trunk/LayoutTests/accessibility/add-children-pseudo-element-expected.txt (0 => 220551)
--- trunk/LayoutTests/accessibility/add-children-pseudo-element-expected.txt (rev 0)
+++ trunk/LayoutTests/accessibility/add-children-pseudo-element-expected.txt 2017-08-10 22:15:49 UTC (rev 220551)
@@ -0,0 +1,12 @@
+Language Email
+Make sure that we are updating the render block flow element's children correctly.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS element.childrenCount is 3
+PASS element.childrenCount is 2
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
Added: trunk/LayoutTests/accessibility/add-children-pseudo-element.html (0 => 220551)
--- trunk/LayoutTests/accessibility/add-children-pseudo-element.html (rev 0)
+++ trunk/LayoutTests/accessibility/add-children-pseudo-element.html 2017-08-10 22:15:49 UTC (rev 220551)
@@ -0,0 +1,70 @@
+<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
+<html>
+<head>
+<script src=""
+</head>
+
+<style>
+.pseudo::after {
+ content: url(resources/svg-circle.svg);
+ width: 18px;
+ height: 20px;
+ position: absolute;
+ margin-top: 6px;
+ right: 6px
+}
+
+.pseudo.hidden::after {
+ content: ' ';
+}
+</style>
+
+<body id="body">
+
+<div id="container">
+<div id="test" style="float : left;">
+<span>Language</span>
+<input id="test">
+</div>
+
+<div id="float" style="display: inline-block;" class="pseudo">
+<span required="" style="color: rgb(194, 0, 0);">Email</span>
+<input type="text" required="" aria-required="true" value="" _onkeyup_="hidePseudo();">
+</div>
+
+</div>
+
+<p id="description"></p>
+<div id="console"></div>
+
+<script>
+
+ description("Make sure that we are updating the render block flow element's children correctly.");
+
+ if (window.accessibilityController) {
+ var element = accessibilityController.accessibleElementById("float");
+ shouldBe("element.childrenCount", "3");
+
+ eventSender.keyDown('\t');
+ eventSender.keyDown('\t');
+
+ shouldBe("element.childrenCount", "2");
+ showPseudo();
+
+ function hidePseudo() {
+ document.getElementById("float").className += "hidden"
+ }
+
+ function showPseudo() {
+ document.getElementById("float").className = "pseudo";
+ }
+
+ // Make sure getting the attributes of its children won't cause crash
+ element.attributesOfChildren();
+ }
+
+</script>
+
+<script src=""
+</body>
+</html>
Added: trunk/LayoutTests/accessibility/resources/svg-circle.svg (0 => 220551)
--- trunk/LayoutTests/accessibility/resources/svg-circle.svg (rev 0)
+++ trunk/LayoutTests/accessibility/resources/svg-circle.svg 2017-08-10 22:15:49 UTC (rev 220551)
@@ -0,0 +1,7 @@
+<svg viewBox="0 0 95 50"
+ xmlns="http://www.w3.org/2000/svg">
+ <g stroke="green" fill="white" stroke-width="5">
+ <circle cx="25" cy="25" r="15"/>
+ <text>circle</text>
+ </g>
+</svg>
\ No newline at end of file
Modified: trunk/Source/WebCore/ChangeLog (220550 => 220551)
--- trunk/Source/WebCore/ChangeLog 2017-08-10 22:08:34 UTC (rev 220550)
+++ trunk/Source/WebCore/ChangeLog 2017-08-10 22:15:49 UTC (rev 220551)
@@ -1,3 +1,28 @@
+2017-08-10 Nan Wang <n_w...@apple.com>
+
+ AX: crash at WebCore::AccessibilityObject::supportsARIALiveRegion() const + 24
+ https://bugs.webkit.org/show_bug.cgi?id=175340
+ <rdar://problem/33782159>
+
+ Reviewed by Chris Fleizach.
+
+ The issue here is that we manualy set the parent object of the AccessibilitySVGRoot object
+ and there are chances that the parent doesn't detach it properly during the parent's destroying
+ process. Accessing the stale parent object will lead to a crash.
+ Fixed this by making the parent object a weak pointer so we don't access an invalid memory.
+
+ Test: accessibility/add-children-pseudo-element.html
+
+ * accessibility/AccessibilityRenderObject.cpp:
+ (WebCore::AccessibilityRenderObject::AccessibilityRenderObject):
+ * accessibility/AccessibilityRenderObject.h:
+ (WebCore::AccessibilityRenderObject::createWeakPtr):
+ * accessibility/AccessibilitySVGRoot.cpp:
+ (WebCore::AccessibilitySVGRoot::AccessibilitySVGRoot):
+ (WebCore::AccessibilitySVGRoot::setParent):
+ (WebCore::AccessibilitySVGRoot::parentObject const):
+ * accessibility/AccessibilitySVGRoot.h:
+
2017-08-10 Chris Dumez <cdu...@apple.com>
[Beacon] Do connect-src CSP check on redirects as well
Modified: trunk/Source/WebCore/accessibility/AccessibilityRenderObject.cpp (220550 => 220551)
--- trunk/Source/WebCore/accessibility/AccessibilityRenderObject.cpp 2017-08-10 22:08:34 UTC (rev 220550)
+++ trunk/Source/WebCore/accessibility/AccessibilityRenderObject.cpp 2017-08-10 22:15:49 UTC (rev 220551)
@@ -109,6 +109,7 @@
AccessibilityRenderObject::AccessibilityRenderObject(RenderObject* renderer)
: AccessibilityNodeObject(renderer->node())
, m_renderer(renderer)
+ , m_weakPtrFactory(this)
{
#ifndef NDEBUG
m_renderer->setHasAXObject(true);
Modified: trunk/Source/WebCore/accessibility/AccessibilityRenderObject.h (220550 => 220551)
--- trunk/Source/WebCore/accessibility/AccessibilityRenderObject.h 2017-08-10 22:08:34 UTC (rev 220550)
+++ trunk/Source/WebCore/accessibility/AccessibilityRenderObject.h 2017-08-10 22:15:49 UTC (rev 220551)
@@ -31,6 +31,7 @@
#include "AccessibilityNodeObject.h"
#include "LayoutRect.h"
#include <wtf/Forward.h>
+#include <wtf/WeakPtr.h>
namespace WebCore {
@@ -198,6 +199,8 @@
AccessibilityRole roleValueForMSAA() const override;
String passwordFieldValue() const override;
+
+ WeakPtr<AccessibilityRenderObject> createWeakPtr() { return m_weakPtrFactory.createWeakPtr(); }
protected:
explicit AccessibilityRenderObject(RenderObject*);
@@ -217,6 +220,7 @@
RenderObject* m_renderer;
private:
+ WeakPtrFactory<AccessibilityRenderObject> m_weakPtrFactory;
bool isAccessibilityRenderObject() const final { return true; }
void ariaListboxSelectedChildren(AccessibilityChildrenVector&);
void ariaListboxVisibleChildren(AccessibilityChildrenVector&);
Modified: trunk/Source/WebCore/accessibility/AccessibilitySVGRoot.cpp (220550 => 220551)
--- trunk/Source/WebCore/accessibility/AccessibilitySVGRoot.cpp 2017-08-10 22:08:34 UTC (rev 220550)
+++ trunk/Source/WebCore/accessibility/AccessibilitySVGRoot.cpp 2017-08-10 22:15:49 UTC (rev 220551)
@@ -35,7 +35,6 @@
AccessibilitySVGRoot::AccessibilitySVGRoot(RenderObject* renderer)
: AccessibilitySVGElement(renderer)
- , m_parent(nullptr)
{
}
@@ -47,6 +46,14 @@
{
return adoptRef(*new AccessibilitySVGRoot(renderer));
}
+
+void AccessibilitySVGRoot::setParent(AccessibilityRenderObject *parent)
+{
+ if (parent)
+ m_parent = parent->createWeakPtr();
+ else
+ m_parent = nullptr;
+}
AccessibilityObject* AccessibilitySVGRoot::parentObject() const
{
@@ -53,7 +60,7 @@
// If a parent was set because this is a remote SVG resource, use that
// but otherwise, we should rely on the standard render tree for the parent.
if (m_parent)
- return m_parent;
+ return m_parent.get();
return AccessibilitySVGElement::parentObject();
}
Modified: trunk/Source/WebCore/accessibility/AccessibilitySVGRoot.h (220550 => 220551)
--- trunk/Source/WebCore/accessibility/AccessibilitySVGRoot.h 2017-08-10 22:08:34 UTC (rev 220550)
+++ trunk/Source/WebCore/accessibility/AccessibilitySVGRoot.h 2017-08-10 22:15:49 UTC (rev 220551)
@@ -29,6 +29,7 @@
#pragma once
#include "AccessibilitySVGElement.h"
+#include <wtf/WeakPtr.h>
namespace WebCore {
@@ -37,7 +38,7 @@
static Ref<AccessibilitySVGRoot> create(RenderObject*);
virtual ~AccessibilitySVGRoot();
- void setParent(AccessibilityObject* parent) { m_parent = parent; }
+ void setParent(AccessibilityRenderObject*);
private:
explicit AccessibilitySVGRoot(RenderObject*);
@@ -45,7 +46,7 @@
AccessibilityObject* parentObject() const override;
bool isAccessibilitySVGRoot() const override { return true; }
- AccessibilityObject* m_parent;
+ WeakPtr<AccessibilityRenderObject> m_parent;
AccessibilityRole roleValue() const override { return GroupRole; }
};
