Unfortunately there's no better way to detect in what context the label
is used, is it in a popover or not. Perhaps a better solution would be
to get subtheming to solve this. The new ListItem brings more
flexibility and this and almost all components from the
Ubuntu.Components.ListItems module will be deprecated, so maintaining
this component would be impossible.
** Changed in: ubuntu-ui-toolkit (Ubuntu)
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/1277227
Title:
LabelVisual.isInsideOverlay() performance issue
Status in ubuntu-ui-toolkit package in Ubuntu:
Won't Fix
Bug description:
I ran my app (lp:ureadit) in the QtCreator analyzer and the following
code accounted for 30% of the rendering time:
http://bazaar.launchpad.net/~ubuntu-sdk-team/ubuntu-ui-
toolkit/trunk/view/head:/modules/Ubuntu/Components/ListItems/LabelVisual.qml#L28
// FIXME: very ugly hack to detect whether the list item is inside a
Popover
property bool overlay: isInsideOverlay(label)
function isInsideOverlay(item) {
if (!item.parent) return false;
return item.parent.hasOwnProperty("pointerTarget") ||
label.isInsideOverlay(item.parent)
}
Location Type Time in Percent Total Time Calls Mean Time
Median Time Longest Time Shortest Time Details
LabelVisual.qml:27 Binding 8.10 % 125.849 ms 152 827.955 µs
894.083 µs 2.305 ms 466.326 µs property bool overlay:
isInsideOverlay(label)
Location Time in Percent Total Time Self Time in Percent Self
Time Details
LabelVisual.qml:28 158.82 % 885.349 ms 27.91 % 88.852 ms
isInsideOverlay
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