Attachment 360414 Details for Bug 193917 – Patch

[patch] Patch

bug-193917-20190129033655.patch (text/plain), 44.63 KB, created by Antoine Quint on 2019-01-28 18:36:57 PST

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Creator: Antoine Quint

Created: 2019-01-28 18:36:57 PST

Size: 44.63 KB

patch

obsolete

>Subversion Revision: 240632
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 510cb093cb7ee0896810eb4e85c2ce16ed3b223c..0d1cc42fcf432a41ca3f0c875b6c739dd2875b91 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,51 @@
>+2019-01-28  Antoine Quint  <graouts@apple.com>
>+
>+        Implement capture for Pointer Events on iOS
>+        https://bugs.webkit.org/show_bug.cgi?id=193917
>+        <rdar://problem/47605689>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        We add a new PointerCaptureController object which gets notified upon dispatch of pointer events
>+        to implement implicit pointer capture, dispatch the gotpointercapture and lostpointercaptiure events,
>+        and implement the Element APIs for pointer capture: hasPointerCapture(), setPointerCapture() and
>+        releasePointerCapture().
>+
>+        Tests: pointerevents/ios/pointer-events-implicit-capture-has-pointer-capture-in-pointer-down.html
>+               pointerevents/ios/pointer-events-implicit-capture-release-exception.html
>+               pointerevents/ios/pointer-events-implicit-capture-release.html
>+               pointerevents/ios/pointer-events-implicit-capture.html
>+               pointerevents/ios/pointer-events-set-pointer-capture-exceptions.html
>+
>+        * Sources.txt:
>+        * WebCore.xcodeproj/project.pbxproj:
>+        * dom/Element.cpp:
>+        (WebCore::Element::setPointerCapture):
>+        (WebCore::Element::releasePointerCapture):
>+        (WebCore::Element::hasPointerCapture):
>+        * dom/Element.h:
>+        * dom/Element.idl:
>+        * dom/EventNames.h:
>+        * dom/PointerEvent.h:
>+        * page/Page.cpp:
>+        (WebCore::Page::Page):
>+        * page/Page.h:
>+        (WebCore::Page::pointerCaptureController const):
>+        * page/PointerCaptureController.cpp: Added.
>+        (WebCore::PointerCaptureController::PointerCaptureController):
>+        (WebCore::PointerCaptureController::setPointerCapture):
>+        (WebCore::PointerCaptureController::releasePointerCapture):
>+        (WebCore::PointerCaptureController::hasPointerCapture):
>+        (WebCore::PointerCaptureController::pointerLockWasApplied):
>+        (WebCore::PointerCaptureController::touchEndedOrWasCanceledForIdentifier):
>+        (WebCore::PointerCaptureController::pointerEventWillBeDispatched):
>+        (WebCore::PointerCaptureController::pointerEventWasDispatched):
>+        (WebCore::PointerCaptureController::processPendingPointerCapture):
>+        * page/PointerCaptureController.h: Added.
>+        * page/PointerLockController.cpp:
>+        (WebCore::PointerLockController::requestPointerLock):
>+        * page/PointerLockController.h:
>+
> 2019-01-28  Dean Jackson  <dino@apple.com>
> 
>         Produce "pen" Pointer Events if using a stylus (e.g. Apple Pencil)
>diff --git a/Source/WebCore/Sources.txt b/Source/WebCore/Sources.txt
>index de5421f8f8fc32c46e7ac9a7f9bda7dd4d13ebdb..cb5143d25023bf9fed5b75940257fa3f5d599441 100644
>--- a/Source/WebCore/Sources.txt
>+++ b/Source/WebCore/Sources.txt
>@@ -1523,6 +1523,7 @@ page/PerformanceResourceTiming.cpp
> page/PerformanceServerTiming.cpp
> page/PerformanceTiming.cpp
> page/PerformanceUserTiming.cpp
>+page/PointerCaptureController.cpp
> page/PointerLockController.cpp
> page/PrintContext.cpp
> page/ProcessWarming.cpp
>diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>index 9cc3bae41a26100463ac92e39211b5543591ec4b..bcce83d33cdae1322e94ed3ba81e90f5c9f7f06d 100644
>--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>@@ -2117,6 +2117,7 @@
> 		71A1B6081DEE5AD70073BCFB /* modern-media-controls-localized-strings.js in Resources */ = {isa = PBXBuildFile; fileRef = 71A1B6061DEE5A820073BCFB /* modern-media-controls-localized-strings.js */; };
> 		71A57DF2154BE25C0009D120 /* SVGPathUtilities.h in Headers */ = {isa = PBXBuildFile; fileRef = 71A57DF0154BE25C0009D120 /* SVGPathUtilities.h */; };
> 		71B28427203CEC4C0036AA5D /* JSCSSAnimation.h in Headers */ = {isa = PBXBuildFile; fileRef = 71B28426203CEC0D0036AA5D /* JSCSSAnimation.h */; settings = {ATTRIBUTES = (Private, ); }; };
>+		71B5AB2621F1D9F400376E5C /* PointerCaptureController.h in Headers */ = {isa = PBXBuildFile; fileRef = 71B5AB2421F1D9E200376E5C /* PointerCaptureController.h */; };
> 		71B7EE0D21B5C6870031C1EF /* TouchAction.h in Headers */ = {isa = PBXBuildFile; fileRef = 71AEE4EB21B5A49C00DDB036 /* TouchAction.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		71C29E32203CE781008F36D2 /* CSSAnimation.h in Headers */ = {isa = PBXBuildFile; fileRef = 71C29E30203CE76B008F36D2 /* CSSAnimation.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		71C916081D1483A300ACA47D /* UserInterfaceLayoutDirection.h in Headers */ = {isa = PBXBuildFile; fileRef = 71C916071D1483A300ACA47D /* UserInterfaceLayoutDirection.h */; settings = {ATTRIBUTES = (Private, ); }; };
>@@ -9410,6 +9411,8 @@
> 		71B0460A1DD3C2EE00EE19CF /* status-support.js */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.javascript; path = "status-support.js"; sourceTree = "<group>"; };
> 		71B28424203CEC0B0036AA5D /* JSCSSAnimation.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = JSCSSAnimation.cpp; sourceTree = "<group>"; };
> 		71B28426203CEC0D0036AA5D /* JSCSSAnimation.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = JSCSSAnimation.h; sourceTree = "<group>"; };
>+		71B5AB2421F1D9E200376E5C /* PointerCaptureController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = PointerCaptureController.h; sourceTree = "<group>"; };
>+		71B5AB2521F1D9E300376E5C /* PointerCaptureController.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = PointerCaptureController.cpp; sourceTree = "<group>"; };
> 		71C29E2E203CE76B008F36D2 /* CSSAnimation.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = CSSAnimation.cpp; sourceTree = "<group>"; };
> 		71C29E30203CE76B008F36D2 /* CSSAnimation.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CSSAnimation.h; sourceTree = "<group>"; };
> 		71C29E31203CE76C008F36D2 /* CSSAnimation.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = CSSAnimation.idl; sourceTree = "<group>"; };
>@@ -17276,8 +17279,8 @@
> 		29A812040FBB9B4100510293 /* accessibility */ = {
> 			isa = PBXGroup;
> 			children = (
>-				29AE212921AB9ECB00869283 /* isolatedtree */,
> 				AAA728EF16D1D8BC00D3BBC6 /* ios */,
>+				29AE212921AB9ECB00869283 /* isolatedtree */,
> 				29A812050FBB9B5200510293 /* mac */,
> 				2981CA9D131822EC00D12F2A /* AccessibilityARIAGrid.cpp */,
> 				29A812160FBB9C1D00510293 /* AccessibilityARIAGrid.h */,
>@@ -17374,10 +17377,10 @@
> 		29AE212921AB9ECB00869283 /* isolatedtree */ = {
> 			isa = PBXGroup;
> 			children = (
>-				29AE212B21AB9EEB00869283 /* AXIsolatedTree.h */,
> 				29AE212C21AB9EEB00869283 /* AXIsolatedTree.cpp */,
>-				29AE213321ABA48A00869283 /* AXIsolatedTreeNode.h */,
>+				29AE212B21AB9EEB00869283 /* AXIsolatedTree.h */,
> 				29AE213421ABA48A00869283 /* AXIsolatedTreeNode.cpp */,
>+				29AE213321ABA48A00869283 /* AXIsolatedTreeNode.h */,
> 			);
> 			path = isolatedtree;
> 			sourceTree = "<group>";
>@@ -20413,6 +20416,8 @@
> 				A554B5F01E383936001D4E03 /* PerformanceUserTiming.cpp */,
> 				A554B5F11E383936001D4E03 /* PerformanceUserTiming.h */,
> 				31D591B116697A6C00E6BF02 /* PlugInClient.h */,
>+				71B5AB2521F1D9E300376E5C /* PointerCaptureController.cpp */,
>+				71B5AB2421F1D9E200376E5C /* PointerCaptureController.h */,
> 				5CFC434E192406A900A0D3B5 /* PointerLockController.cpp */,
> 				5CFC434F192406A900A0D3B5 /* PointerLockController.h */,
> 				3772B09516535856000A49CA /* PopupOpeningObserver.h */,
>@@ -28265,6 +28270,7 @@
> 				76CDD2F51103DA6600680521 /* AccessibilityMenuListPopup.h in Headers */,
> 				29ACB212143E7128006BCA5F /* AccessibilityMockObject.h in Headers */,
> 				29A812360FBB9C1D00510293 /* AccessibilityObject.h in Headers */,
>+				2936BF5C21D69E4B004A8FC9 /* AccessibilityObjectInterface.h in Headers */,
> 				A409C985116D0DDD007197BD /* AccessibilityProgressIndicator.h in Headers */,
> 				29A812390FBB9C1D00510293 /* AccessibilityRenderObject.h in Headers */,
> 				93C4F6EB1108F9A50099D0DB /* AccessibilityScrollbar.h in Headers */,
>@@ -28434,6 +28440,8 @@
> 				07F4E93320B3587F002E3803 /* AVFoundationMIMETypeCache.h in Headers */,
> 				CD336F6217F9F64700DDDCD0 /* AVTrackPrivateAVFObjCImpl.h in Headers */,
> 				070363E6181A1CDC00C074A5 /* AVVideoCaptureSource.h in Headers */,
>+				29AE212D21AB9EEB00869283 /* AXIsolatedTree.h in Headers */,
>+				29AE213521ABA48A00869283 /* AXIsolatedTreeNode.h in Headers */,
> 				F45C231E1995B73B00A6E2E3 /* AxisScrollSnapOffsets.h in Headers */,
> 				29A812380FBB9C1D00510293 /* AXObjectCache.h in Headers */,
> 				91C9F2F91AE3BEB00095B61C /* AXTextStateChangeIntent.h in Headers */,
>@@ -30007,7 +30015,6 @@
> 				1AE2AA980A1CDD2D00B42B25 /* JSHTMLImageElement.h in Headers */,
> 				A80E7E970A1A83E3007FB8C5 /* JSHTMLInputElement.h in Headers */,
> 				836B09561F5F34D9003C3702 /* JSHTMLInputElementEntriesAPI.h in Headers */,
>-				2936BF5C21D69E4B004A8FC9 /* AccessibilityObjectInterface.h in Headers */,
> 				A6148A7912E41E3B0044A784 /* JSHTMLKeygenElement.h in Headers */,
> 				1AE2AB220A1CE63B00B42B25 /* JSHTMLLabelElement.h in Headers */,
> 				1AE2AB240A1CE63B00B42B25 /* JSHTMLLegendElement.h in Headers */,
>@@ -31034,6 +31041,7 @@
> 				BCBB8AB913F1AFB000734DF0 /* PODInterval.h in Headers */,
> 				BCBB8ABA13F1AFB000734DF0 /* PODIntervalTree.h in Headers */,
> 				BCBB8ABB13F1AFB000734DF0 /* PODRedBlackTree.h in Headers */,
>+				71B5AB2621F1D9F400376E5C /* PointerCaptureController.h in Headers */,
> 				317D3FF3215599F40034E3B9 /* PointerEvent.h in Headers */,
> 				B2B1F7170D00CAA8004AEA64 /* PointerEventsHitRules.h in Headers */,
> 				3FF813A71DBA8640009BF001 /* PointerLockController.h in Headers */,
>@@ -31464,7 +31472,6 @@
> 				51405C89190B014400754F94 /* SelectionRectGatherer.h in Headers */,
> 				E44B4BB4141650D7002B1D8B /* SelectorChecker.h in Headers */,
> 				432D3FE818A8658400D7DC03 /* SelectorCheckerTestFunctions.h in Headers */,
>-				29AE213521ABA48A00869283 /* AXIsolatedTreeNode.h in Headers */,
> 				26B999971804D54200D01121 /* SelectorCompiler.h in Headers */,
> 				415071581685067300C3C7B3 /* SelectorFilter.h in Headers */,
> 				43107BE218CC19DE00CC18E8 /* SelectorPseudoTypeMap.h in Headers */,
>@@ -32400,7 +32407,6 @@
> 				977E2E0F12F0FC9C00C13380 /* XSSAuditorDelegate.h in Headers */,
> 				A5416FE618810EF80009FC5F /* YouTubeEmbedShadowElement.h in Headers */,
> 				7A5515F5191830A3009687D2 /* YouTubePluginReplacement.h in Headers */,
>-				29AE212D21AB9EEB00869283 /* AXIsolatedTree.h in Headers */,
> 				FD537353137B651800008DCE /* ZeroPole.h in Headers */,
> 			);
> 			runOnlyForDeploymentPostprocessing = 0;
>diff --git a/Source/WebCore/dom/Element.cpp b/Source/WebCore/dom/Element.cpp
>index 16645850d7cbfd8da3caba2e041a2172379c0c56..c3c23b1cdf715d3d5496ef48d59d73064fe5bd42 100644
>--- a/Source/WebCore/dom/Element.cpp
>+++ b/Source/WebCore/dom/Element.cpp
>@@ -78,6 +78,7 @@
> #include "MutationRecord.h"
> #include "NodeRenderStyle.h"
> #include "PlatformWheelEvent.h"
>+#include "PointerCaptureController.h"
> #include "PointerLockController.h"
> #include "RenderFragmentContainer.h"
> #include "RenderLayer.h"
>@@ -3434,6 +3435,29 @@ void Element::setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(boo
> }
> #endif
> 
>+#if ENABLE(POINTER_EVENTS)
>+ExceptionOr<void> Element::setPointerCapture(int32_t pointerId)
>+{
>+    if (document().page())
>+        return document().page()->pointerCaptureController().setPointerCapture(this, pointerId);
>+    return { };
>+}
>+
>+ExceptionOr<void> Element::releasePointerCapture(int32_t pointerId)
>+{
>+    if (document().page())
>+        return document().page()->pointerCaptureController().releasePointerCapture(this, pointerId);
>+    return { };
>+}
>+
>+bool Element::hasPointerCapture(int32_t pointerId)
>+{
>+    if (document().page())
>+        return document().page()->pointerCaptureController().hasPointerCapture(this, pointerId);
>+    return false;
>+}
>+#endif
>+
> #if ENABLE(POINTER_LOCK)
> void Element::requestPointerLock()
> {
>diff --git a/Source/WebCore/dom/Element.h b/Source/WebCore/dom/Element.h
>index 6ae16185e9ac471854a9349d741dd464a11f4e53..a2599ada87d216034d75925cd31cc5fc50ee6aeb 100644
>--- a/Source/WebCore/dom/Element.h
>+++ b/Source/WebCore/dom/Element.h
>@@ -497,6 +497,12 @@ public:
>     WEBCORE_EXPORT virtual void webkitRequestFullscreen();
> #endif
> 
>+#if ENABLE(POINTER_EVENTS)
>+    ExceptionOr<void> setPointerCapture(int32_t);
>+    ExceptionOr<void> releasePointerCapture(int32_t);
>+    bool hasPointerCapture(int32_t);
>+#endif
>+
> #if ENABLE(POINTER_LOCK)
>     WEBCORE_EXPORT void requestPointerLock();
> #endif
>diff --git a/Source/WebCore/dom/Element.idl b/Source/WebCore/dom/Element.idl
>index 77894f7c976c4b35c597707e07ab80642143bcc3..3ea4c7d80519a031cda9a50ad69701c7991e0ce4 100644
>--- a/Source/WebCore/dom/Element.idl
>+++ b/Source/WebCore/dom/Element.idl
>@@ -98,6 +98,11 @@
>     [Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen, ImplementedAs=webkitRequestFullscreen] void webkitRequestFullScreen(); // Prefixed Mozilla version.
>     [Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] void webkitRequestFullscreen(); // Prefixed W3C version.
> 
>+    // Extensions from Pointer Events API (https://w3c.github.io/pointerevents/#extensions-to-the-element-interface).
>+    [Conditional=POINTER_EVENTS, EnabledAtRuntime=PointerEvents, MayThrowException] void setPointerCapture (long pointerId);
>+    [Conditional=POINTER_EVENTS, EnabledAtRuntime=PointerEvents, MayThrowException] void releasePointerCapture (long pointerId);
>+    [Conditional=POINTER_EVENTS, EnabledAtRuntime=PointerEvents] boolean hasPointerCapture (long pointerId);
>+
>     // Extensions from Pointer Lock API (https://w3c.github.io/pointerlock/#extensions-to-the-element-interface).
>     [Conditional=POINTER_LOCK] void requestPointerLock();
> 
>diff --git a/Source/WebCore/dom/EventNames.h b/Source/WebCore/dom/EventNames.h
>index 3f88b750effb049985b4d1750ae7dbf6e4803066..463ed4364c6887635f3c373fbbdfa55de0f36841 100644
>--- a/Source/WebCore/dom/EventNames.h
>+++ b/Source/WebCore/dom/EventNames.h
>@@ -140,6 +140,7 @@ namespace WebCore {
>     macro(gesturestart) \
>     macro(gesturetap) \
>     macro(gesturetapdown) \
>+    macro(gotpointercapture) \
>     macro(hashchange) \
>     macro(icecandidate) \
>     macro(iceconnectionstatechange) \
>@@ -162,6 +163,7 @@ namespace WebCore {
>     macro(loadingdone) \
>     macro(loadingerror) \
>     macro(loadstart) \
>+    macro(lostpointercapture) \
>     macro(mark) \
>     macro(merchantvalidation) \
>     macro(message) \
>diff --git a/Source/WebCore/dom/PointerEvent.h b/Source/WebCore/dom/PointerEvent.h
>index bdaee5eaebf2e84d77d529587659bb9c00ce066b..25059af033335200318b200e8c097e4d7e4e3c29 100644
>--- a/Source/WebCore/dom/PointerEvent.h
>+++ b/Source/WebCore/dom/PointerEvent.h
>@@ -39,7 +39,7 @@ namespace WebCore {
> class PointerEvent final : public MouseEvent {
> public:
>     struct Init : MouseEventInit {
>-        long pointerId { 0 };
>+        int32_t pointerId { 0 };
>         double width { 1 };
>         double height { 1 };
>         float pressure { 0 };
>@@ -56,6 +56,18 @@ public:
>         return adoptRef(*new PointerEvent(type, WTFMove(initializer)));
>     }
> 
>+#if ENABLE(POINTER_EVENTS)
>+    static Ref<PointerEvent> createForPointerCapture(const AtomicString& type, const PointerEvent& pointerEvent)
>+    {
>+        Init initializer;
>+        initializer.bubbles = true;
>+        initializer.pointerId = pointerEvent.pointerId();
>+        initializer.isPrimary = pointerEvent.isPrimary();
>+        initializer.pointerType = pointerEvent.pointerType();
>+        return adoptRef(*new PointerEvent(type, WTFMove(initializer)));
>+    }
>+#endif
>+
>     static Ref<PointerEvent> createForBindings()
>     {
>         return adoptRef(*new PointerEvent);
>@@ -67,7 +79,7 @@ public:
> 
>     virtual ~PointerEvent();
> 
>-    long pointerId() const { return m_pointerId; }
>+    int32_t pointerId() const { return m_pointerId; }
>     double width() const { return m_width; }
>     double height() const { return m_height; }
>     float pressure() const { return m_pressure; }
>@@ -89,7 +101,7 @@ private:
>     PointerEvent(const AtomicString& type, const PlatformTouchEvent&, IsCancelable isCancelable, unsigned touchIndex, bool isPrimary, Ref<WindowProxy>&&);
> #endif
> 
>-    long m_pointerId { 0 };
>+    int32_t m_pointerId { 0 };
>     double m_width { 1 };
>     double m_height { 1 };
>     float m_pressure { 0 };
>diff --git a/Source/WebCore/page/Page.cpp b/Source/WebCore/page/Page.cpp
>index 26a25819c1a7741d12cd964629ad15979986d0d0..fd66607dcddc40edb928d3063e8d29909c04904c 100644
>--- a/Source/WebCore/page/Page.cpp
>+++ b/Source/WebCore/page/Page.cpp
>@@ -86,6 +86,7 @@
> #include "PluginData.h"
> #include "PluginInfoProvider.h"
> #include "PluginViewBase.h"
>+#include "PointerCaptureController.h"
> #include "PointerLockController.h"
> #include "ProgressTracker.h"
> #include "PublicSuffix.h"
>@@ -214,6 +215,9 @@ Page::Page(PageConfiguration&& pageConfiguration)
> #endif
>     , m_userInputBridge(std::make_unique<UserInputBridge>(*this))
>     , m_inspectorController(std::make_unique<InspectorController>(*this, pageConfiguration.inspectorClient))
>+#if ENABLE(POINTER_EVENTS)
>+    , m_pointerCaptureController(std::make_unique<PointerCaptureController>())
>+#endif
> #if ENABLE(POINTER_LOCK)
>     , m_pointerLockController(std::make_unique<PointerLockController>(*this))
> #endif
>diff --git a/Source/WebCore/page/Page.h b/Source/WebCore/page/Page.h
>index 7f7b370bcae98ab957db4c50176dec29b7b4f926..335d6a05fcbc14dc26ad70ef6493bd4b77aa32e2 100644
>--- a/Source/WebCore/page/Page.h
>+++ b/Source/WebCore/page/Page.h
>@@ -122,6 +122,7 @@ class PlugInClient;
> class PluginData;
> class PluginInfoProvider;
> class PluginViewBase;
>+class PointerCaptureController;
> class PointerLockController;
> class ProgressTracker;
> class ProgressTrackerClient;
>@@ -244,6 +245,9 @@ public:
> #endif
>     UserInputBridge& userInputBridge() const { return *m_userInputBridge; }
>     InspectorController& inspectorController() const { return *m_inspectorController; }
>+#if ENABLE(POINTER_EVENTS)
>+    PointerCaptureController& pointerCaptureController() const { return *m_pointerCaptureController; }
>+#endif
> #if ENABLE(POINTER_LOCK)
>     PointerLockController& pointerLockController() const { return *m_pointerLockController; }
> #endif
>@@ -747,6 +751,9 @@ private:
> #endif
>     const std::unique_ptr<UserInputBridge> m_userInputBridge;
>     const std::unique_ptr<InspectorController> m_inspectorController;
>+#if ENABLE(POINTER_EVENTS)
>+    const std::unique_ptr<PointerCaptureController> m_pointerCaptureController;
>+#endif
> #if ENABLE(POINTER_LOCK)
>     const std::unique_ptr<PointerLockController> m_pointerLockController;
> #endif
>diff --git a/Source/WebCore/page/PointerCaptureController.cpp b/Source/WebCore/page/PointerCaptureController.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..eb97dd2b57826126e27949806a135f2a251aa68c
>--- /dev/null
>+++ b/Source/WebCore/page/PointerCaptureController.cpp
>@@ -0,0 +1,206 @@
>+/*
>+ * Copyright (C) 2019 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. AND ITS CONTRIBUTORS ``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 ITS 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.
>+ */
>+
>+#include "config.h"
>+#include "PointerCaptureController.h"
>+
>+#if ENABLE(POINTER_EVENTS)
>+
>+#include "Document.h"
>+#include "Element.h"
>+#include "EventNames.h"
>+#include "EventTarget.h"
>+#include "Page.h"
>+#include "PointerEvent.h"
>+
>+namespace WebCore {
>+
>+PointerCaptureController::PointerCaptureController()
>+{
>+}
>+
>+ExceptionOr<void> PointerCaptureController::setPointerCapture(Element* capturingTarget, int32_t pointerId)
>+{
>+    // https://w3c.github.io/pointerevents/#setting-pointer-capture
>+
>+    // 1. If the pointerId provided as the method's argument does not match any of the active pointers, then throw a DOMException with the name NotFoundError.
>+    auto iterator = m_activePointerIdsToCapturingData.find(pointerId);
>+    if (iterator == m_activePointerIdsToCapturingData.end())
>+        return Exception { NotFoundError };
>+
>+    // 2. If the Element on which this method is invoked is not connected ([DOM4]), throw an exception with the name InvalidStateError.
>+    if (!capturingTarget->isConnected())
>+        return Exception { InvalidStateError };
>+
>+#if ENABLE(POINTER_LOCK)
>+    // 3. If this method is invoked while the document has a locked element ([PointerLock]), throw an exception with the name InvalidStateError.
>+    if (auto* page = capturingTarget->document().page()) {
>+        if (page->pointerLockController().isLocked())
>+            return Exception { InvalidStateError };
>+    }
>+#endif
>+
>+    // 4. If the pointer is not in the active buttons state, then terminate these steps.
>+    // FIXME: implement when we support mouse events.
>+
>+    // 5. For the specified pointerId, set the pending pointer capture target override to the Element on which this method was invoked.
>+    iterator->value.pendingTargetOverride = capturingTarget;
>+
>+    return { };
>+}
>+
>+ExceptionOr<void> PointerCaptureController::releasePointerCapture(Element* capturingTarget, int32_t pointerId, ImplicitCapture implicit)
>+{
>+    // https://w3c.github.io/pointerevents/#releasing-pointer-capture
>+
>+    // Pointer capture is released on an element explicitly by calling the element.releasePointerCapture(pointerId) method.
>+    // When this method is called, a user agent MUST run the following steps:
>+
>+    // 1. If the pointerId provided as the method's argument does not match any of the active pointers and these steps are not
>+    // being invoked as a result of the implicit release of pointer capture, then throw a DOMException with the name NotFoundError.
>+    auto iterator = m_activePointerIdsToCapturingData.find(pointerId);
>+    if (implicit == ImplicitCapture::No && iterator == m_activePointerIdsToCapturingData.end())
>+        return Exception { NotFoundError };
>+
>+    // 2. If hasPointerCapture is false for the Element with the specified pointerId, then terminate these steps.
>+    if (!hasPointerCapture(capturingTarget, pointerId))
>+        return { };
>+
>+    // 3. For the specified pointerId, clear the pending pointer capture target override, if set.
>+    iterator->value.pendingTargetOverride = nullptr;
>+
>+    return { };
>+}
>+
>+bool PointerCaptureController::hasPointerCapture(Element* capturingTarget, int32_t pointerId)
>+{
>+    // https://w3c.github.io/pointerevents/#dom-element-haspointercapture
>+
>+    // Indicates whether the element on which this method is invoked has pointer capture for the pointer identified by the argument pointerId.
>+    // In particular, returns true if the pending pointer capture target override for pointerId is set to the element on which this method is
>+    // invoked, and false otherwise.
>+
>+    auto iterator = m_activePointerIdsToCapturingData.find(pointerId);
>+    if (iterator == m_activePointerIdsToCapturingData.end())
>+        return false;
>+
>+    auto& capturingData = iterator->value;
>+    return capturingData.pendingTargetOverride == capturingTarget || capturingData.targetOverride == capturingTarget;
>+}
>+
>+void PointerCaptureController::pointerLockWasApplied()
>+{
>+    // https://w3c.github.io/pointerevents/#implicit-release-of-pointer-capture
>+
>+    // When a pointer lock is successfully applied on an element, a user agent MUST run the steps as if the releasePointerCapture()
>+    // method has been called if any element is set to be captured or pending to be captured.
>+    for (auto& capturingData : m_activePointerIdsToCapturingData.values()) {
>+        capturingData.pendingTargetOverride = nullptr;
>+        capturingData.targetOverride = nullptr;
>+    }
>+}
>+
>+void PointerCaptureController::touchEndedOrWasCanceledForIdentifier(int32_t pointerId)
>+{
>+    m_activePointerIdsToCapturingData.remove(pointerId);
>+}
>+
>+void PointerCaptureController::pointerEventWillBeDispatched(const PointerEvent& event, EventTarget* target)
>+{
>+    // https://w3c.github.io/pointerevents/#implicit-pointer-capture
>+
>+    // Some input devices (such as touchscreens) implement a "direct manipulation" metaphor where a pointer is intended to act primarily on the UI
>+    // element it became active upon (providing a physical illusion of direct contact, instead of indirect contact via a cursor that conceptually
>+    // floats above the UI). Such devices are identified by the InputDeviceCapabilities.pointerMovementScrolls property and should have "implicit
>+    // pointer capture" behavior as follows.
>+
>+    // Direct manipulation devices should behave exactly as if setPointerCapture was called on the target element just before the invocation of any
>+    // pointerdown listeners. The hasPointerCapture API may be used (eg. within any pointerdown listener) to determine whether this has occurred. If
>+    // releasePointerCapture is not called for the pointer before the next pointer event is fired, then a gotpointercapture event will be dispatched
>+    // to the target (as normal) indicating that capture is active.
>+
>+    if (!is<Element>(target) || event.type() != eventNames().pointerdownEvent)
>+        return;
>+
>+    auto pointerId = event.pointerId();
>+    m_activePointerIdsToCapturingData.set(pointerId, CapturingData { });
>+    setPointerCapture(downcast<Element>(target), pointerId);
>+}
>+
>+void PointerCaptureController::pointerEventWasDispatched(const PointerEvent& event)
>+{
>+    // https://w3c.github.io/pointerevents/#implicit-release-of-pointer-capture
>+
>+    auto iterator = m_activePointerIdsToCapturingData.find(event.pointerId());
>+    if (iterator != m_activePointerIdsToCapturingData.end()) {
>+        auto& capturingData = iterator->value;
>+        // Immediately after firing the pointerup or pointercancel events, a user agent MUST clear the pending pointer capture target
>+        // override for the pointerId of the pointerup or pointercancel event that was just dispatched, and then run Process Pending
>+        // Pointer Capture steps to fire lostpointercapture if necessary.
>+        if (event.type() == eventNames().pointerupEvent)
>+            capturingData.pendingTargetOverride = nullptr;
>+        
>+        // When the pointer capture target override is no longer connected ([DOM4]), the pending pointer capture target override and pointer
>+        // capture target override nodes SHOULD be cleared and also a PointerEvent named lostpointercapture corresponding to the captured
>+        // pointer SHOULD be fired at the document.
>+        if (capturingData.targetOverride && !capturingData.targetOverride->isConnected()) {
>+            capturingData.pendingTargetOverride = nullptr;
>+            capturingData.targetOverride = nullptr;
>+        }
>+    }
>+
>+    processPendingPointerCapture(event);
>+}
>+
>+void PointerCaptureController::processPendingPointerCapture(const PointerEvent& event)
>+{
>+    // https://w3c.github.io/pointerevents/#process-pending-pointer-capture
>+
>+    auto iterator = m_activePointerIdsToCapturingData.find(event.pointerId());
>+    if (iterator == m_activePointerIdsToCapturingData.end())
>+        return;
>+
>+    auto& capturingData = iterator->value;
>+
>+    // 1. If the pointer capture target override for this pointer is set and is not equal to the pending pointer capture target override,
>+    // then fire a pointer event named lostpointercapture at the pointer capture target override node.
>+    if (capturingData.targetOverride && capturingData.targetOverride != capturingData.pendingTargetOverride)
>+        capturingData.targetOverride->dispatchEvent(PointerEvent::createForPointerCapture(eventNames().lostpointercaptureEvent, event));
>+
>+    // 2. If the pending pointer capture target override for this pointer is set and is not equal to the pointer capture target override,
>+    // then fire a pointer event named gotpointercapture at the pending pointer capture target override.
>+    if (capturingData.pendingTargetOverride && capturingData.targetOverride != capturingData.pendingTargetOverride)
>+        capturingData.pendingTargetOverride->dispatchEvent(PointerEvent::createForPointerCapture(eventNames().gotpointercaptureEvent, event));
>+
>+    // 3. Set the pointer capture target override to the pending pointer capture target override, if set. Otherwise, clear the pointer
>+    // capture target override.
>+    if (capturingData.pendingTargetOverride)
>+        capturingData.targetOverride = capturingData.pendingTargetOverride;
>+    else
>+        capturingData.targetOverride = nullptr;
>+}
>+
>+} // namespace WebCore
>+
>+#endif // ENABLE(POINTER_EVENTS)
>diff --git a/Source/WebCore/page/PointerCaptureController.h b/Source/WebCore/page/PointerCaptureController.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..d006b711b2a0d5e788ef02a9fbb86568f641121e
>--- /dev/null
>+++ b/Source/WebCore/page/PointerCaptureController.h
>@@ -0,0 +1,67 @@
>+/*
>+ * Copyright (C) 2019 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. AND ITS CONTRIBUTORS ``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 ITS 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.
>+ */
>+
>+#pragma once
>+
>+#if ENABLE(POINTER_EVENTS)
>+
>+#include <wtf/HashMap.h>
>+
>+namespace WebCore {
>+
>+class Element;
>+class EventTarget;
>+class PointerEvent;
>+
>+class PointerCaptureController {
>+    WTF_MAKE_NONCOPYABLE(PointerCaptureController);
>+    WTF_MAKE_FAST_ALLOCATED;
>+public:
>+    explicit PointerCaptureController();
>+
>+    enum class ImplicitCapture : uint8_t { Yes, No };
>+
>+    ExceptionOr<void> setPointerCapture(Element*, int32_t);
>+    ExceptionOr<void> releasePointerCapture(Element*, int32_t, ImplicitCapture implicit = ImplicitCapture::No);
>+    bool hasPointerCapture(Element*, int32_t);
>+
>+    void pointerLockWasApplied();
>+
>+    void touchEndedOrWasCanceledForIdentifier(int32_t);
>+    void pointerEventWillBeDispatched(const PointerEvent&, EventTarget*);
>+    void pointerEventWasDispatched(const PointerEvent&);
>+
>+private:
>+    struct CapturingData {
>+        Element* pendingTargetOverride;
>+        Element* targetOverride;
>+    };
>+
>+    void processPendingPointerCapture(const PointerEvent&);
>+    HashMap<int32_t, CapturingData> m_activePointerIdsToCapturingData;
>+};
>+
>+} // namespace WebCore
>+
>+#endif // ENABLE(POINTER_EVENTS)
>diff --git a/Source/WebCore/page/PointerLockController.cpp b/Source/WebCore/page/PointerLockController.cpp
>index cfae41b51afe54d4daa56853b75d02c55e05a21d..6580f23b7d9bbe6ebf6eac3962d3f65c7f8a7987 100644
>--- a/Source/WebCore/page/PointerLockController.cpp
>+++ b/Source/WebCore/page/PointerLockController.cpp
>@@ -71,6 +71,9 @@ void PointerLockController::requestPointerLock(Element* target)
>         }
>         m_element = target;
>         enqueueEvent(eventNames().pointerlockchangeEvent, target);
>+#if ENABLE(POINTER_EVENTS)
>+        m_page.pointerCaptureController().pointerLockWasApplied();
>+#endif
>     } else {
>         m_lockPending = true;
>         m_element = target;
>diff --git a/Source/WebCore/page/PointerLockController.h b/Source/WebCore/page/PointerLockController.h
>index 49097ae59dfac2109cd25a57330f968579789976..5077465fb5456dfbf286a00313429e891a87febb 100644
>--- a/Source/WebCore/page/PointerLockController.h
>+++ b/Source/WebCore/page/PointerLockController.h
>@@ -27,6 +27,7 @@
> #if ENABLE(POINTER_LOCK)
> 
> #include <wtf/RefPtr.h>
>+#include <wtf/WeakPtr.h>
> #include <wtf/text/AtomicString.h>
> 
> namespace WebCore {
>diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
>index c38cf4171388bb0ac41ab7420bd324ae874be9b7..2f11219030cb0ad9b791e5ad8fc0d752fcbf8327 100644
>--- a/LayoutTests/ChangeLog
>+++ b/LayoutTests/ChangeLog
>@@ -1,3 +1,24 @@
>+2019-01-28  Antoine Quint  <graouts@apple.com>
>+
>+        Implement capture for Pointer Events on iOS
>+        https://bugs.webkit.org/show_bug.cgi?id=193917
>+        <rdar://problem/47605689>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        New tests for implicit pointer capture and the Element APIs related to pointer capture.
>+
>+        * pointerevents/ios/pointer-events-implicit-capture-expected.txt: Added.
>+        * pointerevents/ios/pointer-events-implicit-capture-has-pointer-capture-in-pointer-down-expected.txt: Added.
>+        * pointerevents/ios/pointer-events-implicit-capture-has-pointer-capture-in-pointer-down.html: Added.
>+        * pointerevents/ios/pointer-events-implicit-capture-release-exception-expected.txt: Added.
>+        * pointerevents/ios/pointer-events-implicit-capture-release-exception.html: Added.
>+        * pointerevents/ios/pointer-events-implicit-capture-release-expected.txt: Added.
>+        * pointerevents/ios/pointer-events-implicit-capture-release.html: Added.
>+        * pointerevents/ios/pointer-events-implicit-capture.html: Added.
>+        * pointerevents/ios/pointer-events-set-pointer-capture-exceptions-expected.txt: Added.
>+        * pointerevents/ios/pointer-events-set-pointer-capture-exceptions.html: Added.
>+
> 2019-01-28  Dean Jackson  <dino@apple.com>
> 
>         Produce "pen" Pointer Events if using a stylus (e.g. Apple Pencil)
>diff --git a/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-expected.txt b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..8922b28e876ce3d7bbd26b748ab25956353fe472
>--- /dev/null
>+++ b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-expected.txt
>@@ -0,0 +1,3 @@
>+
>+PASS Pointer events for a direct manipulation device trigger 'gotpointercapture' and 'lostpointercapture' events due to implicit capture. 
>+
>diff --git a/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-has-pointer-capture-in-pointer-down-expected.txt b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-has-pointer-capture-in-pointer-down-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..b42ff7337bfbdf3ccf5b44e61e37010f77614bfd
>--- /dev/null
>+++ b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-has-pointer-capture-in-pointer-down-expected.txt
>@@ -0,0 +1,3 @@
>+
>+PASS Calling hasPointerCapture() in the 'pointerdown' event handler returns true for direct manipulation devices. 
>+
>diff --git a/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-has-pointer-capture-in-pointer-down.html b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-has-pointer-capture-in-pointer-down.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..3587115d7eecbee09a4944d4fd7bc9247b98c743
>--- /dev/null
>+++ b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-has-pointer-capture-in-pointer-down.html
>@@ -0,0 +1,22 @@
>+<!DOCTYPE html>
>+<html>
>+<head>
>+<meta charset=utf-8>
>+<meta name="viewport" content="width=device-width, initial-scale=1">
>+</head>
>+<body>
>+<script src="../../resources/testharness.js"></script>
>+<script src="../../resources/testharnessreport.js"></script>
>+<script src="../utils.js"></script>
>+<script>
>+
>+'use strict';
>+
>+target_test((target, test) => {
>+    target.addEventListener("pointerdown", event => assert_true(target.hasPointerCapture(event.pointerId)));
>+    ui.beginTouches({ x: 50, y: 50 }).then(() => test.done());
>+}, "Calling hasPointerCapture() in the 'pointerdown' event handler returns true for direct manipulation devices.");
>+
>+</script>
>+</body>
>+</html>
>\ No newline at end of file
>diff --git a/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release-exception-expected.txt b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release-exception-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..a4ccb78823d7c330da31a299e25071d500ddd342
>--- /dev/null
>+++ b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release-exception-expected.txt
>@@ -0,0 +1,3 @@
>+
>+PASS Calling releasePointerCapture() in the 'pointerdown' event handler with a bogus pointer id raises an exception and does not alter pointer capture. 
>+
>diff --git a/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release-exception.html b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release-exception.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..8c9d1ec9870a16a65f9f52d2b27affdeb4e5c521
>--- /dev/null
>+++ b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release-exception.html
>@@ -0,0 +1,26 @@
>+<!DOCTYPE html>
>+<html>
>+<head>
>+<meta charset=utf-8>
>+<meta name="viewport" content="width=device-width, initial-scale=1">
>+</head>
>+<body>
>+<script src="../../resources/testharness.js"></script>
>+<script src="../../resources/testharnessreport.js"></script>
>+<script src="../utils.js"></script>
>+<script>
>+
>+'use strict';
>+
>+target_test((target, test) => {
>+    target.addEventListener("pointerdown", event => {
>+        assert_true(target.hasPointerCapture(event.pointerId));
>+        assert_throws("NotFoundError", () => target.releasePointerCapture(event.pointerId + 1));
>+        assert_true(target.hasPointerCapture(event.pointerId));
>+    });
>+    ui.beginTouches({ x: 50, y: 50 }).then(() => test.done());
>+}, "Calling releasePointerCapture() in the 'pointerdown' event handler with a bogus pointer id raises an exception and does not alter pointer capture.");
>+
>+</script>
>+</body>
>+</html>
>\ No newline at end of file
>diff --git a/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release-expected.txt b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..46414472482999f5dd516333b593df4621d969ce
>--- /dev/null
>+++ b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release-expected.txt
>@@ -0,0 +1,3 @@
>+
>+PASS Calling releasePointerCapture() in the 'pointerdown' event handler makes hasPointerCapture() return false. 
>+
>diff --git a/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release.html b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..0f3b673cf21f9c06b289bd9ac8d6dcf0ae0d1dec
>--- /dev/null
>+++ b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture-release.html
>@@ -0,0 +1,26 @@
>+<!DOCTYPE html>
>+<html>
>+<head>
>+<meta charset=utf-8>
>+<meta name="viewport" content="width=device-width, initial-scale=1">
>+</head>
>+<body>
>+<script src="../../resources/testharness.js"></script>
>+<script src="../../resources/testharnessreport.js"></script>
>+<script src="../utils.js"></script>
>+<script>
>+
>+'use strict';
>+
>+target_test((target, test) => {
>+    target.addEventListener("pointerdown", event => {
>+        assert_true(target.hasPointerCapture(event.pointerId));
>+        target.releasePointerCapture(event.pointerId);
>+        assert_false(target.hasPointerCapture(event.pointerId));
>+    });
>+    ui.beginTouches({ x: 50, y: 50 }).then(() => test.done());
>+}, "Calling releasePointerCapture() in the 'pointerdown' event handler makes hasPointerCapture() return false.");
>+
>+</script>
>+</body>
>+</html>
>\ No newline at end of file
>diff --git a/LayoutTests/pointerevents/ios/pointer-events-implicit-capture.html b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..c1d08dc29463dc311cc3fee6d2e9016b0988305f
>--- /dev/null
>+++ b/LayoutTests/pointerevents/ios/pointer-events-implicit-capture.html
>@@ -0,0 +1,46 @@
>+<!DOCTYPE html>
>+<html>
>+<head>
>+<meta charset=utf-8>
>+<meta name="viewport" content="width=device-width, initial-scale=1">
>+</head>
>+<body>
>+<script src="../../resources/testharness.js"></script>
>+<script src="../../resources/testharnessreport.js"></script>
>+<script src="../utils.js"></script>
>+<script>
>+
>+'use strict';
>+
>+target_test((target, test) => {
>+    const eventTracker = new EventTracker(target, ["pointerdown", "gotpointercapture", "pointermove", "pointerup", "lostpointercapture"]);
>+
>+    const one = ui.finger();
>+    const two = ui.finger();
>+    ui.sequence([
>+        one.begin({ x: 10, y: 10 }),
>+        two.begin({ x: 50, y: 50 }),
>+        one.move({ x: 30, y: 30 }),
>+        two.move({ x: 70, y: 70 }),
>+        one.end(),
>+        two.end()
>+    ]).then(() => {
>+        eventTracker.assertMatchesEvents([
>+            { id: 1, type: "pointerdown" },
>+            { id: 1, type: "gotpointercapture", isPrimary: true },
>+            { id: 2, type: "pointerdown" },
>+            { id: 2, type: "gotpointercapture", isPrimary: false },
>+            { id: 1, type: "pointermove" },
>+            { id: 2, type: "pointermove" },
>+            { id: 1, type: "pointerup" },
>+            { id: 1, type: "lostpointercapture", isPrimary: false },
>+            { id: 2, type: "pointerup" },
>+            { id: 2, type: "lostpointercapture", isPrimary: false }
>+        ]);
>+        test.done();
>+    });
>+}, "Pointer events for a direct manipulation device trigger 'gotpointercapture' and 'lostpointercapture' events due to implicit capture.");
>+
>+</script>
>+</body>
>+</html>
>\ No newline at end of file
>diff --git a/LayoutTests/pointerevents/ios/pointer-events-set-pointer-capture-exceptions-expected.txt b/LayoutTests/pointerevents/ios/pointer-events-set-pointer-capture-exceptions-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..a53ec750d44d6d6ab275b3a834dd1da3a08e1371
>--- /dev/null
>+++ b/LayoutTests/pointerevents/ios/pointer-events-set-pointer-capture-exceptions-expected.txt
>@@ -0,0 +1,3 @@
>+
>+PASS The setPointerCapture() method can throw. 
>+
>diff --git a/LayoutTests/pointerevents/ios/pointer-events-set-pointer-capture-exceptions.html b/LayoutTests/pointerevents/ios/pointer-events-set-pointer-capture-exceptions.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..e39749152662d27256500209e88560b56b9e05e1
>--- /dev/null
>+++ b/LayoutTests/pointerevents/ios/pointer-events-set-pointer-capture-exceptions.html
>@@ -0,0 +1,27 @@
>+<!DOCTYPE html>
>+<html>
>+<head>
>+<meta charset=utf-8>
>+<meta name="viewport" content="width=device-width, initial-scale=1">
>+</head>
>+<body>
>+<script src="../../resources/testharness.js"></script>
>+<script src="../../resources/testharnessreport.js"></script>
>+<script src="../utils.js"></script>
>+<script>
>+
>+'use strict';
>+
>+target_test((target, test) => {
>+    assert_throws("NotFoundError", () => document.body.setPointerCapture(10), "Calling setPointerCapture() with an invalid pointer id throws a NotFoundError exception.");
>+
>+    target.addEventListener("pointerdown", event => {
>+        assert_true(target.hasPointerCapture(event.pointerId));
>+        assert_throws("InvalidStateError", () => document.createElement("div").setPointerCapture(event.pointerId), "Calling setPointerCapture() with a valid pointer id on a disconnected element throws an InvalidStateError exception.");
>+    });
>+    ui.beginTouches({ x: 50, y: 50 }).then(() => test.done());
>+}, "The setPointerCapture() method can throw.");
>+
>+</script>
>+</body>
>+</html>
>\ No newline at end of file

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dino: review+

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Attachments on bug 193917: 360413 | 360414