[prev in list] [next in list] [prev in thread] [next in thread] 

List:       kde-panel-devel
Subject:    Re: Review Request: use _NET_WM_STATE_HIDDEN to check if the window is minimized instead of WM_STATE
From:       Martin_Gräßlin <kde () martin-graesslin ! com>
Date:       2013-01-10 6:50:40
Message-ID: 20130110065040.13790.21578 () vidsolbach ! de
[Download RAW message or body]

[Attachment #2 (multipart/alternative)]


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
http://git.reviewboard.kde.org/r/108308/
-----------------------------------------------------------

(Updated Jan. 10, 2013, 6:50 a.m.)


Review request for kdelibs, kwin, Plasma, Aaron J. Seigo, and Martin Gräßlin.


Changes
-------

added plasma to CC group - I think they should be in to comment on it.


Description
-------

When setting "Keep window thumbnails" to "Always (Breaks minimization)", kwin will \
keep WM_STATE to be NORMAL when a client is minimized while including \
_NET_WM_STATE_HIDDEN in its _NET_WM_STATE, as confirmed by ICCCM[1] and Extended \
Window Manager Hints[2]. However, apart from the expected result (breaks \
minimization: the client will continue to refresh its content) the minimized window \
is not shown as minimized in icontasks and pager.

These two plasma addons (and probably other addons as well) uses \
KWindowInfo::isMinimized to determine whether the window is minimized. However, this \
function threat all window that are not Iconic (WM_STATE != ICONIC) as not minimized, \
in contradiction to the "Extended window manager hints" which says, "Pagers and \
similar applications should use _NET_WM_STATE_HIDDEN instead of WM_STATE to decide \
whether to display a window in miniature representations of the windows on a \
desktop."

This patch correct this behavior and therefore correct the behavior of both pager and \
icontasks in this situation.

[1] http://tronche.com/gui/x/icccm/sec-4.html#s-4.1.3.1
[2] http://standards.freedesktop.org/wm-spec/wm-spec-1.3.html#id2731936


Diffs
-----

  kdeui/windowmanagement/kwindowinfo_x11.cpp d983c9a 

Diff: http://git.reviewboard.kde.org/r/108308/diff/


Testing
-------

Compiled, pager and icontasks shows minimized windows correctly.
Also tested on openbox (+plasma's pager) by "Xuetian Weng".


Thanks,

Yichao Yu


[Attachment #5 (text/html)]

<html>
 <body>
  <div style="font-family: Verdana, Arial, Helvetica, Sans-Serif;">
   <table bgcolor="#f9f3c9" width="100%" cellpadding="8" style="border: 1px #c9c399 \
solid;">  <tr>
     <td>
      This is an automatically generated e-mail. To reply, visit:
      <a href="http://git.reviewboard.kde.org/r/108308/">http://git.reviewboard.kde.org/r/108308/</a>
  </td>
    </tr>
   </table>
   <br />


<table bgcolor="#fefadf" width="100%" cellspacing="0" cellpadding="8" \
style="background-image: \
url('http://git.reviewboard.kde.org/media/rb/images/review_request_box_top_bg.png'); \
background-position: left top; background-repeat: repeat-x; border: 1px black \
solid;">  <tr>
  <td>

<div>Review request for kdelibs, kwin, Plasma, Aaron J. Seigo, and Martin \
Gräßlin.</div> <div>By Yichao Yu.</div>


<p style="color: grey;"><i>Updated Jan. 10, 2013, 6:50 a.m.</i></p>



<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Changes</h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: \
1px solid #b8b5a0">  <tr>
  <td>
   <pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">added plasma to CC group - I think they should be in to comment on \
it.</pre>  </td>
 </tr>
</table>




<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
 <table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" \
style="border: 1px solid #b8b5a0">  <tr>
  <td>
   <pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">When setting &quot;Keep window thumbnails&quot; to &quot;Always (Breaks \
minimization)&quot;, kwin will keep WM_STATE to be NORMAL when a client is minimized \
while including _NET_WM_STATE_HIDDEN in its _NET_WM_STATE, as confirmed by ICCCM[1] \
and Extended Window Manager Hints[2]. However, apart from the expected result (breaks \
minimization: the client will continue to refresh its content) the minimized window \
is not shown as minimized in icontasks and pager.

These two plasma addons (and probably other addons as well) uses \
KWindowInfo::isMinimized to determine whether the window is minimized. However, this \
function threat all window that are not Iconic (WM_STATE != ICONIC) as not minimized, \
in contradiction to the &quot;Extended window manager hints&quot; which says, \
&quot;Pagers and similar applications should use _NET_WM_STATE_HIDDEN instead of \
WM_STATE to decide whether to display a window in miniature representations of the \
windows on a desktop.&quot;

This patch correct this behavior and therefore correct the behavior of both pager and \
icontasks in this situation.

[1] http://tronche.com/gui/x/icccm/sec-4.html#s-4.1.3.1
[2] http://standards.freedesktop.org/wm-spec/wm-spec-1.3.html#id2731936
</pre>
  </td>
 </tr>
</table>


<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: \
1px solid #b8b5a0">  <tr>
  <td>
   <pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">Compiled, pager and icontasks shows minimized windows correctly. Also \
tested on openbox (+plasma&#39;s pager) by &quot;Xuetian Weng&quot;.</pre>  </td>
 </tr>
</table>




<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">

 <li>kdeui/windowmanagement/kwindowinfo_x11.cpp <span style="color: \
grey">(d983c9a)</span></li>

</ul>

<p><a href="http://git.reviewboard.kde.org/r/108308/diff/" style="margin-left: \
3em;">View Diff</a></p>




  </td>
 </tr>
</table>




  </div>
 </body>
</html>



_______________________________________________
Plasma-devel mailing list
Plasma-devel@kde.org
https://mail.kde.org/mailman/listinfo/plasma-devel


[prev in list] [next in list] [prev in thread] [next in thread] 

Configure | About | News | Add a list | Sponsored by KoreLogic