<table><tr><td style="">drosca added a comment.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D13931">View Revision</a></tr></table><br /><div><div><blockquote style="border-left: 3px solid #8C98B8;
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<div style="font-style: normal;
padding-bottom: 4px;">In <a href="https://phabricator.kde.org/D13931#290544" style="background-color: #e7e7e7;
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color: rgb(107, 116, 140);"><p>I can get the PulseObject, that is not the problem, the problem is that I can't access the model outside of a delegate. model[index] does not work because QAbstractItemModel does not implement the {} operator.</p></div>
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<p>What is <tt style="background: #ebebeb; font-size: 13px;">{} operator</tt>?</p>
<blockquote style="border-left: 3px solid #a7b5bf; color: #464c5c; font-style: italic; margin: 4px 0 12px 0; padding: 4px 12px; background-color: #f8f9fc;"><p>It only works with QList-based models. Therefore I introduced the get function to the model. This has the limitation that I don't have an notify signal for it. Therefore I use the notify signal of the changed property to force a reevaluate of the properties that depend on "get". It's a hacky solution, but I didn't find a better one.</p></blockquote>
<p>Still I don't see the issue, the only problem that you would have is that your binding is on JavaScript list (<tt style="background: #ebebeb; font-size: 13px;">indexOf</tt>) and when this list changes it wouldn't get re-evaluated. But it will never be the case, because channels are constant AND the other binding is on <tt style="background: #ebebeb; font-size: 13px;">speakersview.currentIndex</tt> so this will take care of re-evaluating the binding when changing current device in combobox.</p>
<p>Anyway, you should be able to replace C++ <tt style="background: #ebebeb; font-size: 13px;">get</tt> with</p>
<div class="remarkup-code-block" style="margin: 12px 0;" data-code-lang="text" data-sigil="remarkup-code-block"><pre class="remarkup-code" style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; padding: 12px; margin: 0; background: rgba(71, 87, 120, 0.08);">var index = sinkmodel.index(speakersview.currentIndex, 0);
var role = sinkmode.role("PulseObject"); // This is extension in our AbstractModel
var pulseObject = sinkmodel.data(index, role);</pre></div></div></div><br /><div><strong>REPOSITORY</strong><div><div>R115 Plasma Audio Volume Applet</div></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D13931">https://phabricator.kde.org/D13931</a></div></div><br /><div><strong>To: </strong>nicolasfella, drosca<br /><strong>Cc: </strong>ngraham, VDG, plasma-devel, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart<br /></div>