Attachment 346566 Details for Bug 188322 – Patch

[patch] Patch

bug-188322-20180803172251.patch (text/plain), 27.94 KB, created by Wenson Hsieh on 2018-08-03 17:22:51 PDT

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Creator: Wenson Hsieh

Created: 2018-08-03 17:22:51 PDT

Size: 27.94 KB

patch

obsolete

>Subversion Revision: 234566
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 1c549d38186b03b469f851c541121707f26c973b..f113b9c58d7901f44c803b73067945c14348a0a5 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,46 @@
>+2018-08-03  Wenson Hsieh  <wenson_hsieh@apple.com>
>+
>+        [iOS] Caret disappears after resigning and becoming first responder if active focus state is retained
>+        https://bugs.webkit.org/show_bug.cgi?id=188322
>+        <rdar://problem/42455270>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Prior to r230745, when a user selects a word in non-editable web content without a prior selection, we would
>+        always try to activate the text interaction assistant, creating a selection view (a UITextSelectionView). After
>+        the long press is recognized, this text selection view is configured for "highlight mode", which is a special
>+        mode for presenting selection UI where the grabber handles at the start and end of the selection are suppressed.
>+        UIKit then prepares to show the selection by asking WKContentView for the number of selection rects; if this
>+        number is zero, the UITextSelectionView is removed from the superview, and state that keeps track of whether the
>+        selection view is in "highlight mode" is reset.
>+
>+        In the case where there's no prior selection, our cached EditorState in the UI process will not be up to date
>+        yet when the gesture is recognized. This means that when UIKit asks us for the number of selection rects, we'll
>+        return 0, which causes any state tracking "highlight mode" for the selection to be reset, subsequently resulting
>+        in selection handles showing up before the user has ended the initial loupe gesture.
>+
>+        r230745 addressed this bug by removing logic to activate the text selection when becoming first responder,
>+        instead deferring until the next -_selectionChanged call with post-layout editor state data to activate the
>+        selection. While this does ensure that selection handles don't erroneously appear, it also means that clients
>+        that call -becomeFirstResponder to show selection UI and the keyboard in a web view while an element is already
>+        focused will not have an active selection assistant (i.e. the selection view will still be hidden). One way this
>+        happens is when Safari uses `-_retainActiveFocusedState` in combination with `-resignFirstResponder` and
>+        `-becomeFirstResponder` to temporarily switch focus away from the web view when the URL bar is tapped.
>+
>+        To fix both the inactive selection after `-becomeFirstResponder` as well as the selection handles showing up
>+        when performing a loupe gesture, we simply make the check in `-becomeFirstResponderForWebView` more nuanced.
>+        Instead of always activating the selection or never activating the selection, only activate the selection if the
>+        current editor state has information about a selection to avoid causing the selection view to be immediately
>+        removed and "highlight mode" to be reset when selecting a word via loupe gesture for the first time.
>+
>+        Tests:  KeyboardInputTests.CaretSelectionRectAfterRestoringFirstResponder
>+                KeyboardInputTests.RangedSelectionRectAfterRestoringFirstResponder
>+                editing/selection/ios/selection-handles-after-touch-end.html
>+
>+        * UIProcess/ios/WKContentViewInteraction.mm:
>+        (-[WKContentView becomeFirstResponderForWebView]):
>+        (-[WKContentView canShowNonEmptySelectionView]):
>+
> 2018-08-03  Alex Christensen  <achristensen@webkit.org>
> 
>         Fix spelling of "overridden"
>diff --git a/Source/WebKit/UIProcess/ios/WKContentViewInteraction.mm b/Source/WebKit/UIProcess/ios/WKContentViewInteraction.mm
>index 09e53ef759e44d6ca9329df85e6ff615bc6a58fe..8cee7b7f699c0f45f47a27064d9569e20f3cc2ad 100644
>--- a/Source/WebKit/UIProcess/ios/WKContentViewInteraction.mm
>+++ b/Source/WebKit/UIProcess/ios/WKContentViewInteraction.mm
>@@ -974,6 +974,9 @@ static inline bool hasAssistedNode(WebKit::AssistedNodeInformation assistedNodeI
>         didBecomeFirstResponder = [super becomeFirstResponder];
>     }
> 
>+    if (didBecomeFirstResponder && [self canShowNonEmptySelectionView])
>+        [_textSelectionAssistant activateSelection];
>+
>     return didBecomeFirstResponder;
> }
> 
>@@ -1676,6 +1679,15 @@ static inline bool isSamePair(UIGestureRecognizer *a, UIGestureRecognizer *b, UI
>                      }];
> }
> 
>+- (BOOL)canShowNonEmptySelectionView
>+{
>+    if (self.suppressAssistantSelectionView)
>+        return NO;
>+
>+    auto& state = _page->editorState();
>+    return !state.isMissingPostLayoutData && !state.selectionIsNone;
>+}
>+
> - (BOOL)hasSelectablePositionAtPoint:(CGPoint)point
> {
>     if (!_webView.configuration._textInteractionGesturesEnabled)
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index 3e03d597471165c5f762faa30fa6ee0ba93fee90..9020e12ca11d5a0f0ee6f4240995cff1359dcfc8 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,44 @@
>+2018-08-03  Wenson Hsieh  <wenson_hsieh@apple.com>
>+
>+        [iOS] Caret disappears after resigning and becoming first responder if active focus state is retained
>+        https://bugs.webkit.org/show_bug.cgi?id=188322
>+        <rdar://problem/42455270>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Adds plumbing in UIScriptController to grab the start and end selection handle rects for use in the new layout
>+        test. Also adds new API tests to verify that when a web view resigns first responder, both caret and range
>+        selection views are hidden, and when first responder status is restored, both caret and range selection views
>+        are made visible again.
>+
>+        * DumpRenderTree/ios/UIScriptControllerIOS.mm:
>+        (WTR::UIScriptController::selectionStartGrabberViewRect const):
>+        (WTR::UIScriptController::selectionEndGrabberViewRect const):
>+        * DumpRenderTree/mac/UIScriptControllerMac.mm:
>+        (WTR::UIScriptController::selectionStartGrabberViewRect const):
>+        (WTR::UIScriptController::selectionEndGrabberViewRect const):
>+        * TestRunnerShared/UIScriptContext/Bindings/UIScriptController.idl:
>+        * TestRunnerShared/UIScriptContext/UIScriptController.cpp:
>+        (WTR::UIScriptController::selectionStartGrabberViewRect const):
>+        (WTR::UIScriptController::selectionEndGrabberViewRect const):
>+        * TestRunnerShared/UIScriptContext/UIScriptController.h:
>+        * TestWebKitAPI/Tests/ios/KeyboardInputTestsIOS.mm:
>+        (-[TestWKWebView waitForCaretViewFrameToBecome:]):
>+        (-[TestWKWebView waitForSelectionViewRectsToBecome:]):
>+        (webViewWithAutofocusedInput):
>+
>+        Pull out some common logic for creating a web view that allows programmatic focus to present the keyboard, and
>+        immediately loading a web page with an autofocusing text field.
>+
>+        (TestWebKitAPI::TEST):
>+        * TestWebKitAPI/cocoa/TestWKWebView.h:
>+        * TestWebKitAPI/cocoa/TestWKWebView.mm:
>+        (-[TestWKWebView caretViewRectInContentCoordinates]):
>+        (-[TestWKWebView selectionViewRectsInContentCoordinates]):
>+        * WebKitTestRunner/ios/UIScriptControllerIOS.mm:
>+        (WTR::UIScriptController::selectionStartGrabberViewRect const):
>+        (WTR::UIScriptController::selectionEndGrabberViewRect const):
>+
> 2018-08-03  David Fenton  <david_fenton@apple.com>
> 
>         Unreviewed, rolling out r234517.
>diff --git a/Tools/DumpRenderTree/ios/UIScriptControllerIOS.mm b/Tools/DumpRenderTree/ios/UIScriptControllerIOS.mm
>index b94ca8d831e540ebd4ba441569c74097c15b1de5..a446ff5552a0387783c031747cee04ed8ca03a1a 100644
>--- a/Tools/DumpRenderTree/ios/UIScriptControllerIOS.mm
>+++ b/Tools/DumpRenderTree/ios/UIScriptControllerIOS.mm
>@@ -366,6 +366,16 @@ void UIScriptController::completeBackSwipe(JSValueRef callback)
> {
> }
> 
>+JSObjectRef UIScriptController::selectionStartGrabberViewRect() const
>+{
>+    return nullptr;
>+}
>+
>+JSObjectRef UIScriptController::selectionEndGrabberViewRect() const
>+{
>+    return nullptr;
>+}
>+
> }
> 
> #endif // PLATFORM(IOS)
>diff --git a/Tools/DumpRenderTree/mac/UIScriptControllerMac.mm b/Tools/DumpRenderTree/mac/UIScriptControllerMac.mm
>index ec2235931d4aae0a23337fc2e58f09c8eeea4abc..e9d04425e3114a1bcbe9125f056aa8857d347399 100644
>--- a/Tools/DumpRenderTree/mac/UIScriptControllerMac.mm
>+++ b/Tools/DumpRenderTree/mac/UIScriptControllerMac.mm
>@@ -185,6 +185,16 @@ bool UIScriptController::isShowingDataListSuggestions() const
>     return false;
> }
> 
>+JSObjectRef UIScriptController::selectionStartGrabberViewRect() const
>+{
>+    return nullptr;
>+}
>+
>+JSObjectRef UIScriptController::selectionEndGrabberViewRect() const
>+{
>+    return nullptr;
>+}
>+
> }
> 
> #endif // PLATFORM(MAC)
>diff --git a/Tools/TestRunnerShared/UIScriptContext/Bindings/UIScriptController.idl b/Tools/TestRunnerShared/UIScriptContext/Bindings/UIScriptController.idl
>index 809e475bc45f89f4af4b21cf02b097710a527663..8deb4eb10b2262c05a64c3d3a8c96aa6244c09fa 100644
>--- a/Tools/TestRunnerShared/UIScriptContext/Bindings/UIScriptController.idl
>+++ b/Tools/TestRunnerShared/UIScriptContext/Bindings/UIScriptController.idl
>@@ -234,6 +234,9 @@ interface UIScriptController {
> 
>     readonly attribute object selectionRangeViewRects; // An array of objects with 'left', 'top', 'width', and 'height' properties.
>     readonly attribute object textSelectionCaretRect; // An object with 'left', 'top', 'width', 'height' properties.
>+    readonly attribute object selectionStartGrabberViewRect;
>+    readonly attribute object selectionEndGrabberViewRect;
>+
>     readonly attribute object inputViewBounds;
> 
>     void replaceTextAtRange(DOMString text, long location, long length);
>diff --git a/Tools/TestRunnerShared/UIScriptContext/UIScriptController.cpp b/Tools/TestRunnerShared/UIScriptContext/UIScriptController.cpp
>index 42c12cef1b7bbe24cf72605d30727b7d70cfef9c..e94f0af72bbb345af6693357f30811b7f897a282 100644
>--- a/Tools/TestRunnerShared/UIScriptContext/UIScriptController.cpp
>+++ b/Tools/TestRunnerShared/UIScriptContext/UIScriptController.cpp
>@@ -384,6 +384,16 @@ JSObjectRef UIScriptController::textSelectionCaretRect() const
>     return nullptr;
> }
> 
>+JSObjectRef UIScriptController::selectionStartGrabberViewRect() const
>+{
>+    return nullptr;
>+}
>+
>+JSObjectRef UIScriptController::selectionEndGrabberViewRect() const
>+{
>+    return nullptr;
>+}
>+
> JSObjectRef UIScriptController::inputViewBounds() const
> {
>     return nullptr;
>diff --git a/Tools/TestRunnerShared/UIScriptContext/UIScriptController.h b/Tools/TestRunnerShared/UIScriptContext/UIScriptController.h
>index b2e1adeb839ffd3b2662a083728aa23f1012064c..95d7d54985645ab7b3632ee809b2c0f64bb26b06 100644
>--- a/Tools/TestRunnerShared/UIScriptContext/UIScriptController.h
>+++ b/Tools/TestRunnerShared/UIScriptContext/UIScriptController.h
>@@ -156,6 +156,8 @@ public:
>     
>     JSObjectRef selectionRangeViewRects() const;
>     JSObjectRef textSelectionCaretRect() const;
>+    JSObjectRef selectionStartGrabberViewRect() const;
>+    JSObjectRef selectionEndGrabberViewRect() const;
>     JSObjectRef inputViewBounds() const;
> 
>     void replaceTextAtRange(JSStringRef, int location, int length);
>diff --git a/Tools/TestWebKitAPI/Tests/ios/KeyboardInputTestsIOS.mm b/Tools/TestWebKitAPI/Tests/ios/KeyboardInputTestsIOS.mm
>index 209db0881aee62a38e76cf4abd3f8d2108d49db5..39bdba4c96d52e20fa7add3d57353257617494fc 100644
>--- a/Tools/TestWebKitAPI/Tests/ios/KeyboardInputTestsIOS.mm
>+++ b/Tools/TestWebKitAPI/Tests/ios/KeyboardInputTestsIOS.mm
>@@ -34,9 +34,54 @@
> #import <WebKit/WKWebViewPrivate.h>
> #import <WebKitLegacy/WebEvent.h>
> 
>-namespace TestWebKitAPI {
>+@implementation TestWKWebView (KeyboardInputTests)
> 
>-TEST(KeyboardInputTests, CanHandleKeyEventInCompletionHandler)
>+- (void)waitForCaretViewFrameToBecome:(CGRect)frame
>+{
>+    BOOL hasEmittedWarning = NO;
>+    NSTimeInterval secondsToWaitUntilWarning = 2;
>+    NSTimeInterval startTime = [NSDate timeIntervalSinceReferenceDate];
>+    while ([[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantPast]]) {
>+        CGRect currentFrame = self.caretViewRectInContentCoordinates;
>+        if (CGRectEqualToRect(currentFrame, frame))
>+            break;
>+
>+        if (hasEmittedWarning || startTime + secondsToWaitUntilWarning >= [NSDate timeIntervalSinceReferenceDate])
>+            continue;
>+
>+        NSLog(@"Expected a caret rect of %@, but still observed %@", NSStringFromCGRect(frame), NSStringFromCGRect(currentFrame));
>+        hasEmittedWarning = YES;
>+    }
>+}
>+
>+- (void)waitForSelectionViewRectsToBecome:(NSArray<NSValue *> *)selectionRects
>+{
>+    BOOL hasEmittedWarning = NO;
>+    NSTimeInterval secondsToWaitUntilWarning = 2;
>+    NSTimeInterval startTime = [NSDate timeIntervalSinceReferenceDate];
>+    while ([[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantPast]]) {
>+        NSArray<NSValue *> *currentRects = self.selectionViewRectsInContentCoordinates;
>+        BOOL selectionRectsMatch = YES;
>+        if (currentRects.count == selectionRects.count) {
>+            for (NSUInteger index = 0; index < selectionRects.count; ++index)
>+                selectionRectsMatch |= [selectionRects[index] isEqualToValue:currentRects[index]];
>+        } else
>+            selectionRectsMatch = NO;
>+
>+        if (selectionRectsMatch)
>+            break;
>+
>+        if (hasEmittedWarning || startTime + secondsToWaitUntilWarning >= [NSDate timeIntervalSinceReferenceDate])
>+            continue;
>+
>+        NSLog(@"Expected a selection rects of %@, but still observed %@", selectionRects, currentRects);
>+        hasEmittedWarning = YES;
>+    }
>+}
>+
>+@end
>+
>+static RetainPtr<TestWKWebView> webViewWithAutofocusedInput()
> {
>     auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 500)]);
>     auto inputDelegate = adoptNS([[TestInputDelegate alloc] init]);
>@@ -47,10 +92,19 @@ TEST(KeyboardInputTests, CanHandleKeyEventInCompletionHandler)
>         return _WKFocusStartsInputSessionPolicyAllow;
>     }];
>     [webView _setInputDelegate:inputDelegate.get()];
>-    [webView synchronouslyLoadHTMLString:@"<input autofocus>"];
>+    [webView synchronouslyLoadHTMLString:@"<meta name='viewport' content='width=device-width, initial-scale=1'><input autofocus>"];
> 
>     TestWebKitAPI::Util::run(&doneWaiting);
>     doneWaiting = false;
>+    return webView;
>+}
>+
>+namespace TestWebKitAPI {
>+
>+TEST(KeyboardInputTests, CanHandleKeyEventInCompletionHandler)
>+{
>+    auto webView = webViewWithAutofocusedInput();
>+    bool doneWaiting = false;
> 
>     id <UITextInputPrivate> contentView = (id <UITextInputPrivate>)[webView firstResponder];
>     auto firstWebEvent = adoptNS([[WebEvent alloc] initWithKeyEventType:WebEventKeyDown timeStamp:CFAbsoluteTimeGetCurrent() characters:@"a" charactersIgnoringModifiers:@"a" modifiers:0 isRepeating:NO withFlags:0 withInputManagerHint:nil keyCode:0 isTabKey:NO]);
>@@ -68,6 +122,41 @@ TEST(KeyboardInputTests, CanHandleKeyEventInCompletionHandler)
>     EXPECT_WK_STREQ("a", [webView stringByEvaluatingJavaScript:@"document.querySelector('input').value"]);
> }
> 
>+TEST(KeyboardInputTests, CaretSelectionRectAfterRestoringFirstResponder)
>+{
>+    auto expectedCaretRect = CGRectMake(16, 13, 3, 15);
>+    auto webView = webViewWithAutofocusedInput();
>+    EXPECT_WK_STREQ("INPUT", [webView stringByEvaluatingJavaScript:@"document.activeElement.tagName"]);
>+    [webView waitForCaretViewFrameToBecome:expectedCaretRect];
>+
>+    dispatch_block_t restoreActiveFocusState = [webView _retainActiveFocusedState];
>+    [webView resignFirstResponder];
>+    restoreActiveFocusState();
>+    [webView waitForCaretViewFrameToBecome:CGRectZero];
>+
>+    [webView becomeFirstResponder];
>+    [webView waitForCaretViewFrameToBecome:expectedCaretRect];
>+}
>+
>+TEST(KeyboardInputTests, RangedSelectionRectAfterRestoringFirstResponder)
>+{
>+    NSArray *expectedSelectionRects = @[ [NSValue valueWithCGRect:CGRectMake(16, 13, 24, 15)] ];
>+
>+    auto webView = webViewWithAutofocusedInput();
>+    [[webView textInputContentView] insertText:@"hello"];
>+    [webView selectAll:nil];
>+    EXPECT_WK_STREQ("INPUT", [webView stringByEvaluatingJavaScript:@"document.activeElement.tagName"]);
>+    [webView waitForSelectionViewRectsToBecome:expectedSelectionRects];
>+
>+    dispatch_block_t restoreActiveFocusState = [webView _retainActiveFocusedState];
>+    [webView resignFirstResponder];
>+    restoreActiveFocusState();
>+    [webView waitForSelectionViewRectsToBecome:@[ ]];
>+
>+    [webView becomeFirstResponder];
>+    [webView waitForSelectionViewRectsToBecome:expectedSelectionRects];
>+}
>+
> } // namespace TestWebKitAPI
> 
> #endif // WK_API_ENABLED && PLATFORM(IOS)
>diff --git a/Tools/TestWebKitAPI/cocoa/TestWKWebView.h b/Tools/TestWebKitAPI/cocoa/TestWKWebView.h
>index a5d651a7df67722a691dba07c393eaa2acc14463..cf98daa234c09857a65e56a2b28e2ee090a7e947 100644
>--- a/Tools/TestWebKitAPI/cocoa/TestWKWebView.h
>+++ b/Tools/TestWebKitAPI/cocoa/TestWKWebView.h
>@@ -63,6 +63,8 @@
> @interface TestWKWebView (IOSOnly)
> @property (nonatomic, readonly) UIView <UITextInput> *textInputContentView;
> @property (nonatomic, readonly) RetainPtr<NSArray> selectionRectsAfterPresentationUpdate;
>+@property (nonatomic, readonly) CGRect caretViewRectInContentCoordinates;
>+@property (nonatomic, readonly) NSArray<NSValue *> *selectionViewRectsInContentCoordinates;
> - (_WKActivatedElementInfo *)activatedElementAtPosition:(CGPoint)position;
> @end
> #endif
>diff --git a/Tools/TestWebKitAPI/cocoa/TestWKWebView.mm b/Tools/TestWebKitAPI/cocoa/TestWKWebView.mm
>index c545a44c3771bc9434e41f31913266b9cae140e3..3740d582f3f51eb7dd70164bdeb3e711be57f805 100644
>--- a/Tools/TestWebKitAPI/cocoa/TestWKWebView.mm
>+++ b/Tools/TestWebKitAPI/cocoa/TestWKWebView.mm
>@@ -337,6 +337,22 @@ NSEventMask __simulated_forceClickAssociatedEventsMask(id self, SEL _cmd)
>     return selectionRects;
> }
> 
>+- (CGRect)caretViewRectInContentCoordinates
>+{
>+    UIView *selectionView = [self.textInputContentView valueForKeyPath:@"interactionAssistant.selectionView"];
>+    CGRect caretFrame = [[selectionView valueForKeyPath:@"caretView.frame"] CGRectValue];
>+    return [selectionView convertRect:caretFrame toView:self.textInputContentView];
>+}
>+
>+- (NSArray<NSValue *> *)selectionViewRectsInContentCoordinates
>+{
>+    NSMutableArray *selectionRects = [NSMutableArray array];
>+    NSArray<UITextSelectionRect *> *rects = [self.textInputContentView valueForKeyPath:@"interactionAssistant.selectionView.rangeView.rects"];
>+    for (UITextSelectionRect *rect in rects)
>+        [selectionRects addObject:[NSValue valueWithCGRect:rect.rect]];
>+    return selectionRects;
>+}
>+
> - (_WKActivatedElementInfo *)activatedElementAtPosition:(CGPoint)position
> {
>     __block RetainPtr<_WKActivatedElementInfo> info;
>diff --git a/Tools/WebKitTestRunner/ios/UIScriptControllerIOS.mm b/Tools/WebKitTestRunner/ios/UIScriptControllerIOS.mm
>index bd42d3aed4ed5a00ebd99d637342004126eed97c..c6ebfca52151906f6420dc760d051a80fea735af 100644
>--- a/Tools/WebKitTestRunner/ios/UIScriptControllerIOS.mm
>+++ b/Tools/WebKitTestRunner/ios/UIScriptControllerIOS.mm
>@@ -579,6 +579,26 @@ JSObjectRef UIScriptController::textSelectionCaretRect() const
>     return JSValueToObject(m_context->jsContext(), [JSValue valueWithObject:toNSDictionary(TestController::singleton().mainWebView()->platformView()._uiTextCaretRect) inContext:[JSContext contextWithJSGlobalContextRef:m_context->jsContext()]].JSValueRef, nullptr);
> }
> 
>+JSObjectRef UIScriptController::selectionStartGrabberViewRect() const
>+{
>+    WKWebView *webView = TestController::singleton().mainWebView()->platformView();
>+    UIView *contentView = [webView valueForKeyPath:@"_currentContentView"];
>+    UIView *selectionRangeView = [contentView valueForKeyPath:@"interactionAssistant.selectionView.rangeView"];
>+    auto frameInContentCoordinates = [selectionRangeView convertRect:[[selectionRangeView valueForKeyPath:@"startGrabber"] frame] toView:contentView];
>+    auto jsContext = m_context->jsContext();
>+    return JSValueToObject(jsContext, [JSValue valueWithObject:toNSDictionary(frameInContentCoordinates) inContext:[JSContext contextWithJSGlobalContextRef:jsContext]].JSValueRef, nullptr);
>+}
>+
>+JSObjectRef UIScriptController::selectionEndGrabberViewRect() const
>+{
>+    WKWebView *webView = TestController::singleton().mainWebView()->platformView();
>+    UIView *contentView = [webView valueForKeyPath:@"_currentContentView"];
>+    UIView *selectionRangeView = [contentView valueForKeyPath:@"interactionAssistant.selectionView.rangeView"];
>+    auto frameInContentCoordinates = [selectionRangeView convertRect:[[selectionRangeView valueForKeyPath:@"endGrabber"] frame] toView:contentView];
>+    auto jsContext = m_context->jsContext();
>+    return JSValueToObject(jsContext, [JSValue valueWithObject:toNSDictionary(frameInContentCoordinates) inContext:[JSContext contextWithJSGlobalContextRef:jsContext]].JSValueRef, nullptr);
>+}
>+
> JSObjectRef UIScriptController::inputViewBounds() const
> {
>     return JSValueToObject(m_context->jsContext(), [JSValue valueWithObject:toNSDictionary(TestController::singleton().mainWebView()->platformView()._inputViewBounds) inContext:[JSContext contextWithJSGlobalContextRef:m_context->jsContext()]].JSValueRef, nullptr);
>diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
>index 23404cef68bd856ac0d28794d0392fbf0ad98166..fbdd6661baee539aa957cfb99c9e8076c497d4c3 100644
>--- a/LayoutTests/ChangeLog
>+++ b/LayoutTests/ChangeLog
>@@ -1,3 +1,27 @@
>+2018-08-03  Wenson Hsieh  <wenson_hsieh@apple.com>
>+
>+        [iOS] Caret disappears after resigning and becoming first responder if active focus state is retained
>+        https://bugs.webkit.org/show_bug.cgi?id=188322
>+        <rdar://problem/42455270>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Adds a new layout test to verify that (1) selection handles are not shown when selecting a word by long
>+        pressing prior to ending the touch, and (2) selection handles are shown after ending the touch.
>+
>+        * editing/selection/ios/selection-handles-after-touch-end-expected.txt: Added.
>+        * editing/selection/ios/selection-handles-after-touch-end.html: Added.
>+        * resources/ui-helper.js:
>+
>+        Introduces new hooks in UIHelper to grab the frames of the start and end selection handle views.
>+
>+        (window.UIHelper.getSelectionStartGrabberViewRect.return.new.Promise.):
>+        (window.UIHelper.getSelectionStartGrabberViewRect.return.new.Promise):
>+        (window.UIHelper.getSelectionStartGrabberViewRect):
>+        (window.UIHelper.getSelectionEndGrabberViewRect.return.new.Promise.):
>+        (window.UIHelper.getSelectionEndGrabberViewRect.return.new.Promise):
>+        (window.UIHelper.getSelectionEndGrabberViewRect):
>+
> 2018-08-03  Justin Fan  <justin_fan@apple.com>
> 
>         WebGL 2 conformance: vertex_arrays/vertex_array_object.html
>diff --git a/LayoutTests/editing/selection/ios/selection-handles-after-touch-end-expected.txt b/LayoutTests/editing/selection/ios/selection-handles-after-touch-end-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..78620a5c154383adc339f2f3a82c77e05b6b170b
>--- /dev/null
>+++ b/LayoutTests/editing/selection/ios/selection-handles-after-touch-end-expected.txt
>@@ -0,0 +1,11 @@
>+WK
>+
>+Selection rects before touchend:
>+{ left = 0, top = 0, width = 250, height = 170 }
>+Selection start handle before touchend: { left = 0, top = 0, width = 0, height = 0 }
>+Selection end handle before touchend: { left = 0, top = 0, width = 0, height = 0 }
>+
>+Selection rects after touchend:
>+{ left = 0, top = 0, width = 250, height = 170 }
>+Selection start handle after touchend: { left = 0, top = 0, width = 2, height = 170 }
>+Selection end handle after touchend: { left = 249, top = 0, width = 2, height = 170 }
>diff --git a/LayoutTests/editing/selection/ios/selection-handles-after-touch-end.html b/LayoutTests/editing/selection/ios/selection-handles-after-touch-end.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..59b0dbb8c9c16426ca6303826d0aeefe5cca483f
>--- /dev/null
>+++ b/LayoutTests/editing/selection/ios/selection-handles-after-touch-end.html
>@@ -0,0 +1,75 @@
>+<html>
>+<head>
>+<script src="../../../resources/ui-helper.js"></script>
>+<meta name=viewport content="width=device-width">
>+<style>
>+    body, html {
>+        width: 100%;
>+        height: 100%;
>+        margin: 0;
>+    }
>+
>+    #target {
>+        font-size: 150px;
>+    }
>+</style>
>+</head>
>+
>+<body>
>+<p id="target">WK</p>
>+<pre id="output"></pre>
>+<script>
>+if (window.testRunner) {
>+    testRunner.dumpAsText();
>+    testRunner.waitUntilDone();
>+}
>+
>+function appendOutput(s)
>+{
>+    const paragraph = document.createElement("div");
>+    paragraph.textContent = s;
>+    output.appendChild(paragraph);
>+}
>+
>+function toString(rect)
>+{
>+    return `{ left = ${Math.round(rect.left)}, top = ${Math.round(rect.top)}, width = ${Math.round(rect.width)}, height = ${Math.round(rect.height)} }`;
>+}
>+
>+function checkDone() {
>+    if (!window.doneCount)
>+        doneCount = 0;
>+    if (++doneCount == 3)
>+        testRunner.notifyDone();
>+}
>+
>+document.addEventListener("selectionchange", async () => {
>+    if (!getSelection().rangeCount || getSelection().getRangeAt(0).collapsed)
>+        return;
>+
>+    appendOutput("Selection rects before touchend:");
>+    (await UIHelper.getUISelectionRects()).map(toString).map(appendOutput);
>+    appendOutput(`Selection start handle before touchend: ${toString(await UIHelper.getSelectionStartGrabberViewRect())}`);
>+    appendOutput(`Selection end handle before touchend: ${toString(await UIHelper.getSelectionEndGrabberViewRect())}`);
>+    appendOutput("\n");
>+    testRunner.runUIScript("uiController.liftUpAtPoint(100, 75, 1, () => uiController.uiScriptComplete(''));", checkDone);
>+});
>+
>+document.addEventListener("touchend", async () => {
>+    appendOutput("Selection rects after touchend:");
>+    (await UIHelper.getUISelectionRects()).map(toString).map(appendOutput);
>+    appendOutput(`Selection start handle after touchend: ${toString(await UIHelper.getSelectionStartGrabberViewRect())}`);
>+    appendOutput(`Selection end handle after touchend: ${toString(await UIHelper.getSelectionEndGrabberViewRect())}`);
>+    checkDone();
>+});
>+
>+if (window.testRunner && testRunner.runUIScript)
>+    testRunner.runUIScript("uiController.touchDownAtPoint(100, 75, 1, () => uiController.uiScriptComplete(''));", checkDone);
>+else {
>+    appendOutput(`This test verifies that selection handles are not present when selecting a word via long press,
>+        before ending the long press. To manually test, long press the word "WK" until a selection highlight is shown,
>+        and verify that there are no selection handles. Upon release, selection handles should appear.`);
>+}
>+</script>
>+</body>
>+</html>
>\ No newline at end of file
>diff --git a/LayoutTests/resources/ui-helper.js b/LayoutTests/resources/ui-helper.js
>index 40ad82d63defdd65b3bd734e65408281986c6db4..9d0c6146ab447d212a89338ae70f665ab57d83b7 100644
>--- a/LayoutTests/resources/ui-helper.js
>+++ b/LayoutTests/resources/ui-helper.js
>@@ -153,6 +153,38 @@ window.UIHelper = class UIHelper {
>         });
>     }
> 
>+    static getSelectionStartGrabberViewRect()
>+    {
>+        if (!this.isWebKit2() || !this.isIOS())
>+            return Promise.resolve();
>+
>+        return new Promise(resolve => {
>+            testRunner.runUIScript(`(function() {
>+                uiController.doAfterNextStablePresentationUpdate(function() {
>+                    uiController.uiScriptComplete(JSON.stringify(uiController.selectionStartGrabberViewRect));
>+                });
>+            })()`, jsonString => {
>+                resolve(JSON.parse(jsonString));
>+            });
>+        });
>+    }
>+
>+    static getSelectionEndGrabberViewRect()
>+    {
>+        if (!this.isWebKit2() || !this.isIOS())
>+            return Promise.resolve();
>+
>+        return new Promise(resolve => {
>+            testRunner.runUIScript(`(function() {
>+                uiController.doAfterNextStablePresentationUpdate(function() {
>+                    uiController.uiScriptComplete(JSON.stringify(uiController.selectionEndGrabberViewRect));
>+                });
>+            })()`, jsonString => {
>+                resolve(JSON.parse(jsonString));
>+            });
>+        });
>+    }
>+
>     static replaceTextAtRange(text, location, length) {
>         return new Promise(resolve => {
>             testRunner.runUIScript(`(() => {

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Attachments on bug 188322: 346566 | 346569 | 346595 | 346596 | 346597 | 346635 | 346682