^properties of variables = properties of components.
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https://bugs.launchpad.net/bugs/1621509
Title:
ListView with extension from UbuntuToolkit updates its model after the
component is completed
Status in ubuntu-ui-toolkit package in Ubuntu:
In Progress
Bug description:
This is the cause for the Sections index resetting after
initialization, see bug 1610231.
Create the file ModelTest.qml:
import QtQuick 2.4
Item {
id: root
width: 800
height: 600
ListView {
model: root.model
onModelChanged: print("LV model changed to "+model[0]+" "+model[1]+"
"+model[2]+" "+model[3])
Component.onCompleted: print("ListView completed.")
}
Component.onCompleted: print("root item completed.")
property list<QtObject> objectList
onObjectListChanged: print("root.objectList changed to "+objectList[0]+"
"+objectList[1]+" "+objectList[2])
property var model: objectList
}
And run this program modelInst.qml:
import QtQuick 2.4
import Ubuntu.Components 1.3
ModelTest {
QtObject {
objectName: "one"
id: objectOne
}
QtObject {
objectName: "two"
id: objectTwo
}
QtObject{
objectName: "three"
id: objectThree
}
objectList: [objectOne, objectTwo, objectThree]
}
The output is as follows:
$ qmlscene modelInst.qml
qml: root.objectList changed to undefined undefined undefined
qml: root.objectList changed to QObject(0x118abf0, "one") undefined undefined
qml: root.objectList changed to QObject(0x118abf0, "one") QObject(0x118a110,
"two") undefined
qml: root.objectList changed to QObject(0x118abf0, "one") QObject(0x118a110,
"two") QObject(0x1182f80, "three")
qml: LV model changed to QObject(0x118abf0, "one") QObject(0x118a110, "two")
QObject(0x1182f80, "three") undefined
qml: LV model changed to QObject(0x118abf0, "one") QObject(0x118a110, "two")
QObject(0x1182f80, "three") undefined
qml: root item completed.
qml: ListView completed.
qml: LV model changed to QObject(0x118abf0, "one") QObject(0x118a110, "two")
QObject(0x1182f80, "three") undefined
qml: LV model changed to QObject(0x118abf0, "one") QObject(0x118a110, "two")
QObject(0x1182f80, "three") undefined
So the model is changed AFTER the ListView and root item are
completed.
When the Ubuntu.Components import is removed the output is correct:
$ qmlscene modelInst.qml
qml: root.objectList changed to undefined undefined undefined
qml: root.objectList changed to QObject(0x171c8d0, "one") undefined undefined
qml: root.objectList changed to QObject(0x171c8d0, "one") QObject(0x171d290,
"two") undefined
qml: root.objectList changed to QObject(0x171c8d0, "one") QObject(0x171d290,
"two") QObject(0x171d420, "three")
qml: LV model changed to QObject(0x171c8d0, "one") QObject(0x171d290, "two")
QObject(0x171d420, "three") undefined
qml: LV model changed to QObject(0x171c8d0, "one") QObject(0x171d290, "two")
QObject(0x171d420, "three") undefined
qml: root item completed.
qml: ListView completed.
Also, if there is no ListView inside ModelTest.qml, then nothing is
updated after the items are completed. So I suspect the issue is in
our ListView extension.
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