[Webkit-unassigned] [Bug 151442] New: Selection.deleteFromDocument should not leave a selection character

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=151442

            Bug ID: 151442
           Summary: Selection.deleteFromDocument should not leave a
                    selection character
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: Gtk, LayoutTestFailure
          Severity: Normal
          Priority: P2
         Component: HTML Editing
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: darin at apple.com

This is what happens with test imported/blink/editing/selection/deleteFromDocument-crash.html. It first run selectAll in the focused text area, and removeFromDocument() leaves the last character of the selection in the text area. This is what is causing a failure in GTK+ and win ports. The reason why it passes for mac is because the mac editor behaviour considers selections as not directional. For non directional selections, FrameSelection::willBeModified() when direction is backwards switches the selection base extent. So, when the caret is moved once character backwards in the case of mac, the cursor position is 0 and it doesn't have any effect. For the other ports, the position is the last one (extent). This was fixed in blink r172511, so we could just merge it in WebKit.

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