[Webkit-unassigned] [Bug 212093] REGRESSION (r259930): Dictation marker at start of text is removed when added trailing whitespace is collapsed

Tue May 19 11:59:32 PDT 2020

https://bugs.webkit.org/show_bug.cgi?id=212093

--- Comment #2 from Daniel Bates <dbates at webkit.org> ---
Steps to reproduce using iOS Simulator build:

1 Add the following test case:

[[

#include "config.h"

#if PLATFORM(IOS_FAMILY)

#import "PlatformUtilities.h"
#import "TestInputDelegate.h"
#import "TestWKWebView.h"
#import "UIKitSPI.h"
#import "WKWebViewConfigurationExtras.h"
#import <WebKit/WKWebViewPrivate.h>
#import <wtf/unicode/CharacterNames.h>

namespace TestWebKitAPI {

TEST(InsertTextAlternatives, InsertTrailingSpaceWhitespaceRebalance)
{
    auto *configuration = [WKWebViewConfiguration _test_configurationWithTestPlugInClassName:@"WebProcessPlugInWithInternals" configureJSCForTesting:YES];
    auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:NSMakeRect(0, 0, 300, 300) configuration:configuration]);
    auto inputDelegate = adoptNS([[TestInputDelegate alloc] init]);
    [inputDelegate setFocusStartsInputSessionPolicyHandler:[] (WKWebView *, id <_WKFocusedElementInfo>) { return _WKFocusStartsInputSessionPolicyAllow; }];
    [webView _setInputDelegate:inputDelegate.get()];

    [webView synchronouslyLoadHTMLString:@"<body contenteditable='true'></body>"];
    [webView evaluateJavaScriptAndWaitForInputSessionToChange:@"document.body.focus()"];
    [[webView textInputContentView] insertText:@"hello" alternatives:@[@"yellow"] style:UITextAlternativeStyleNone];
    [[webView textInputContentView] insertText:@" "];
    [webView waitForNextPresentationUpdate];
    EXPECT_TRUE([[webView objectByEvaluatingJavaScript:@"internals.hasDictationAlternativesMarker(0, 5)"] boolValue]); // hello
}

} // namespace TestWebKitAPI

#endif // PLATFORM(IOS_FAMILY)

]]

2. Run it.

Then it fails.

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