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

List:       kde-core-devel
Subject:    Re: Review Request: New action class proposal: KDualAction
From:       "Christoph Feck" <christoph () maxiom ! de>
Date:       2010-10-13 22:53:41
Message-ID: 20101013225341.31134.71253 () vidsolbach ! de
[Download RAW message or body]

-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
http://svn.reviewboard.kde.org/r/5396/#review8128
-----------------------------------------------------------



trunk/KDE/kdelibs/kdeui/actions/kdualaction.h
<http://svn.reviewboard.kde.org/r/5396/#comment8411>

    Shouldn't this be "setCurrentState(State state)" after your bool->enum \
conversion?


Additionally, please add a KDualAction camelcased header. Thanks.

- Christoph


On 2010-10-12 15:32:08, Aurélien Gâteau wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://svn.reviewboard.kde.org/r/5396/
> -----------------------------------------------------------
> 
> (Updated 2010-10-12 15:32:08)
> 
> 
> Review request for kdelibs.
> 
> 
> Summary
> -------
> 
> This review-request introduces a new class named KDualAction. The goal of this \
> class is to make it easy to create a dual-state action: an action which represents \
> two actions, switching from one to the other whenever it is triggered. KDualAction \
> can be used to implement actions such as the Play/Pause action of a media player or \
> the Reload/Stop action of a web browser. 
> Right now some applications mis-use KToggleAction to implement such dual-state \
> actions: They set the first action as the unchecked state and provide an \
> alternative KGuiItem for the checked state with KToggleAction::setCheckedState(). \
> This is wrong because when the user clicks a button representing the action in a \
> toolbar, the button stays down.  The appropriate use cases for toggle buttons (and \
> thus KToggleAction) are documented in a recent addition to the HIG: \
> http://techbase.kde.org/Projects/Usability/HIG/Toggle_Buttons 
> Potential users for this class:
> 
> - Dragon, Juk, Amarok to implement their Play/Pause action.
> 
> - Rekonq to implement its Reload/Stop action. Konqueror could also use this but it \
> does not feature a dual reload/stop action as far as I know. 
> - Dolphin could maybe use it to implement its Split/Close action (although it's a \
> bit more involved in this case because the close action changes depending on which \
> panel it is going to close) 
> - Any application which incorrectly uses KToggleAction + setCheckedState() to \
> show/hide a UI element (a search on lxr.kde.org shows quite a lot of misuse: \
> http://lxr.kde.org/ident?i=setCheckedState ) 
> 
> Diffs
> -----
> 
> trunk/KDE/kdelibs/kdeui/CMakeLists.txt 1180870 
> trunk/KDE/kdelibs/kdeui/actions/kdualaction.h PRE-CREATION 
> trunk/KDE/kdelibs/kdeui/actions/kdualaction.cpp PRE-CREATION 
> trunk/KDE/kdelibs/kdeui/actions/kdualaction_p.h PRE-CREATION 
> trunk/KDE/kdelibs/kdeui/tests/CMakeLists.txt 1180870 
> trunk/KDE/kdelibs/kdeui/tests/kdualactiontest.cpp PRE-CREATION 
> 
> Diff: http://svn.reviewboard.kde.org/r/5396/diff
> 
> 
> Testing
> -------
> 
> The class comes with unit-tests. I tested the API made sense by porting Dragon, \
> Konqueror and creating a showHideMenubar action in KStandardAction (review requests \
> to come if the class is accepted). 
> 
> Thanks,
> 
> Aurélien
> 
> 


[Attachment #3 (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://svn.reviewboard.kde.org/r/5396/">http://svn.reviewboard.kde.org/r/5396/</a>
  </td>
    </tr>
   </table>
   <br />









<div>




<table width="100%" border="0" bgcolor="white" style="border: 1px solid #C0C0C0; \
border-collapse: collapse; margin: 2px padding: 2px;">  <thead>
  <tr>
   <th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; \
font-size: 9pt; padding: 4px 8px; text-align: left;">  <a \
href="http://svn.reviewboard.kde.org/r/5396/diff/3/?file=39188#file39188line147" \
style="color: black; font-weight: bold; text-decoration: \
underline;">trunk/KDE/kdelibs/kdeui/actions/kdualaction.h</a>  <span \
style="font-weight: normal;">

     (Diff revision 3)

    </span>
   </th>
  </tr>
 </thead>

 <tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
  <tr>

   <td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; \
"></pre></td>  <td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: \
0; ">public Q_SLOTS:</pre></td>

  </tr>
 </tbody>




 
 



 <tbody>

  <tr>
    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th>  <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>  <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">147</font></th>  <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">    <span \
class="kt">void</span> <span class="n">setActive</span><span class="p">(</span><span \
class="n">bool</span> <span class="n">state</span><span \
class="p">);</span></pre></td>  </tr>

 </tbody>

</table>

<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">Shouldn&#39;t this be &quot;setCurrentState(State state)&quot; after \
your bool-&gt;enum conversion?</pre> </div>
<br />



 <pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: \
-pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Additionally, please add \
a KDualAction camelcased header. Thanks.</pre>

<p>- Christoph</p>


<br />
<p>On October 12th, 2010, 3:32 p.m., Aurélien Gâteau wrote:</p>






<table bgcolor="#fefadf" width="100%" cellspacing="0" cellpadding="8" \
style="background-image: \
url('http://svn.reviewboard.kde.orgrb/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.</div>
<div>By Aurélien Gâteau.</div>


<p style="color: grey;"><i>Updated 2010-10-12 15:32:08</i></p>




<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;">This review-request introduces a new class named KDualAction. The goal \
of this class is to make it easy to create a dual-state action: an action which \
represents two actions, switching from one to the other whenever it is triggered. \
KDualAction can be used to implement actions such as the Play/Pause action of a media \
player or the Reload/Stop action of a web browser.

Right now some applications mis-use KToggleAction to implement such dual-state \
actions: They set the first action as the unchecked state and provide an alternative \
KGuiItem for the checked state with KToggleAction::setCheckedState(). This is wrong \
because when the user clicks a button representing the action in a toolbar, the \
button stays down.  The appropriate use cases for toggle buttons (and thus \
KToggleAction) are documented in a recent addition to the HIG: \
http://techbase.kde.org/Projects/Usability/HIG/Toggle_Buttons

Potential users for this class:

- Dragon, Juk, Amarok to implement their Play/Pause action.

- Rekonq to implement its Reload/Stop action. Konqueror could also use this but it \
does not feature a dual reload/stop action as far as I know.

- Dolphin could maybe use it to implement its Split/Close action (although it&#39;s a \
bit more involved in this case because the close action changes depending on which \
panel it is going to close)

- Any application which incorrectly uses KToggleAction + setCheckedState() to \
show/hide a UI element (a search on lxr.kde.org shows quite a lot of misuse: \
http://lxr.kde.org/ident?i=setCheckedState )</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;">The class comes with unit-tests. I tested the API made sense by porting \
Dragon, Konqueror and creating a showHideMenubar action in KStandardAction (review \
requests to come if the class is accepted).</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>trunk/KDE/kdelibs/kdeui/CMakeLists.txt <span style="color: \
grey">(1180870)</span></li>

 <li>trunk/KDE/kdelibs/kdeui/actions/kdualaction.h <span style="color: \
grey">(PRE-CREATION)</span></li>

 <li>trunk/KDE/kdelibs/kdeui/actions/kdualaction.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>

 <li>trunk/KDE/kdelibs/kdeui/actions/kdualaction_p.h <span style="color: \
grey">(PRE-CREATION)</span></li>

 <li>trunk/KDE/kdelibs/kdeui/tests/CMakeLists.txt <span style="color: \
grey">(1180870)</span></li>

 <li>trunk/KDE/kdelibs/kdeui/tests/kdualactiontest.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>

</ul>

<p><a href="http://svn.reviewboard.kde.org/r/5396/diff/" style="margin-left: \
3em;">View Diff</a></p>




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








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



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

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