[Webkit-unassigned] [Bug 168219] New: [GTK] Add webkit_web_editor_is_editing_command_enabled()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=168219

            Bug ID: 168219
           Summary: [GTK] Add
                    webkit_web_editor_is_editing_command_enabled()
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com
                CC: bugs-noreply at webkitgtk.org

Add webkit_web_editor_is_editing_command_enabled() so that context menu item availability can be decided in the web process and then sent to the UI process via the WebKitContextMenu user data. This is superior to sending the WebKitContextMenu from the web process to the UI process without this information, and then subsequently performing several IPC queries from the UI process to the web process to check the availability of editing commands.

I want it to fix a context menu flickering problem in Epiphany. Since we have to show the WebKitContextMenu in a WebKitWebView::context-menu handler, but cannot check the availability of editing commands there without using sync IPC, we currently assume all editing commands are available, add them to the menu, start querying the availability with webkit_web_view_can_execute_editing_command(), show the menu, and later remove them from the menu once that finishes, causing the flicker.

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