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      <base href="https://bugzilla.gnome.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - GTK_CSD=0 does not disable CSD"
   href="https://bugzilla.gnome.org/show_bug.cgi?id=776290">776290</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>GTK_CSD=0 does not disable CSD
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Platform
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>gtk+
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>3.22.x
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Backend: Wayland
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>gtk-bugs@gtk.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>cyphar@cyphar.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>gtk-bugs@gtk.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>rob@robster.org.uk, wayland-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>GNOME version</th>
          <td>---
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=342234&action=diff" name="attach_342234" title="gtk3-make-csd-optional.patch">attachment 342234</a> <a href="attachment.cgi?id=342234&action=edit" title="gtk3-make-csd-optional.patch">[details]</a></span> <a href='review?bug=776290&attachment=342234'>[review]</a>
gtk3-make-csd-optional.patch

Currently there exists the GTK_CSD environment variable that is checked to
decide whether CSD should be set for a particular window. However, it's used as
a hint rather than as an instruction to an application.

In addition, even if an application does *not* specify it wants to use CSD, if
you're using a backend other than X (such as Wayland) you will *still* get CSDs
on your GTK+3 applications -- even though neither the user nor the application
want it.

IMO the solution is to either always honour GTK_CSD if it's set, or remove the
code that specifically makes Wayland _always_ use CSDs even if the application
did not request to use them.

I've attached my attempt at a patch for this. PTAL. Note that Arch Linux has
their own patch for this as well[1].

[1]:
<a href="https://aur.archlinux.org/cgit/aur.git/plain/gtk3-make-csd-optional.patch?h=gtk3-optional-csd">https://aur.archlinux.org/cgit/aur.git/plain/gtk3-make-csd-optional.patch?h=gtk3-optional-csd</a></pre>
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