[Webkit-unassigned] [Bug 88932] New: scrollIntoViewIfNeeded has no effect for BR element

Tue Jun 12 15:35:53 PDT 2012

https://bugs.webkit.org/show_bug.cgi?id=88932

           Summary: scrollIntoViewIfNeeded has no effect for BR element
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: matthew at yorba.org

Calling scrollIntoViewIfNeeded has no effect if the calling element is a BR. Here is some example code using Vala and WebKitGtk+:

const string HTML = """
<HTML><BODY contenteditable="true">
Top
<BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR>
<BR id='bottom_br' />
<span id='bottom_span'>Bottom</span>
</BODY>""";

WebKit.WebView web_view;

void on_clicked() {
    WebKit.DOM.Document document = web_view.get_dom_document();

    // Works
    document.get_element_by_id("bottom_span").scroll_into_view_if_needed(false);
    // Doesn't work
    //document.get_element_by_id("bottom_br").scroll_into_view_if_needed(false);
}

void main(string[] args) {
    Gtk.init(ref args);

    Gtk.Window window = new Gtk.Window();
    window.destroy.connect(Gtk.main_quit);
    window.set_default_size(300, 200);

    Gtk.Box box = new Gtk.Box(Gtk.Orientation.VERTICAL, 0);
    window.add(box);

    Gtk.ScrolledWindow scrolled_window = new Gtk.ScrolledWindow(null, null);
    box.pack_start(scrolled_window);

    web_view = new WebKit.WebView();
    web_view.load_string(HTML, "text/html", "UTF8", "");
    scrolled_window.add(web_view);

    Gtk.Button button = new Gtk.Button();
    box.pack_start(button, false, false);
    button.label = "Click Me!";
    button.clicked.connect(on_clicked);

    window.show_all();

    Gtk.main();
}

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