[Webkit-unassigned] [Bug 63857] New: [DRT] implement createPopupMenu for Chromium DRT port

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=63857

           Summary: [DRT] implement createPopupMenu for Chromium DRT port
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jnd at chromium.org
                CC: tony at chromium.org, satish at chromium.org


In WebKit, the keystroke configurations of selection list below (see dom/SelectElement.cpp)

// Configure platform-specific behavior when focused pop-up receives arrow/space/return keystroke.
// (PLATFORM(MAC) and PLATFORM(GTK) are always false in Chromium, hence the extra tests.)
#if PLATFORM(MAC) || (PLATFORM(CHROMIUM) && OS(DARWIN))
#define ARROW_KEYS_POP_MENU 1
#define SPACE_OR_RETURN_POP_MENU 0
#elif PLATFORM(GTK) || (PLATFORM(CHROMIUM) && OS(UNIX))
#define ARROW_KEYS_POP_MENU 0
#define SPACE_OR_RETURN_POP_MENU 1
#else
#define ARROW_KEYS_POP_MENU 0
#define SPACE_OR_RETURN_POP_MENU 0
#endif

According to the configuration, On Linux and Chromium unix-like platforms, with configuration of SPACE_OR_RETURN_POP_MENU, pressing '\r' or space on a <select> which acts as menuList render object is to trigger showing popup menu. (instead of doing implicit submit, see SelectElement::menuListDefaultEventHandler.). However the behavior causes crash on Chromium's layout tests. It's because showing popup calls WebViewHost::createPopupMenu() which is not implemented by Chromium DRT. Like test LayoutTest/fast/forms/select-script-onchange.html. See bug 61515.

I am working on a patch to fix this issue, which simply creating WebPopupMenu with a empty WidgetClient delegate. It should be enough for layout test.

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