/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/1.3/OptionSelector.qml is in qml-module-ubuntu-components-gles 1.3.1918+16.04.20160404-0ubuntu3.
This file is owned by root:root, with mode 0o644.
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* Copyright 2015 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import QtQuick 2.4
import Ubuntu.Components.ListItems 1.3 as ListItem
import Ubuntu.Components 1.3 as Toolkit
/*!
\qmltype OptionSelector
\inqmlmodule Ubuntu.Components 1.1
\ingroup ubuntu-components
\brief Component displaying either a single selected value or expanded multiple choice with an optional image and subtext when not expanded, when expanding it opens a
listing of all the possible values for selection with an additional option of always being expanded. If multiple choice is selected the list is expanded automatically.
Examples:
\qml
import Ubuntu.Components 1.3
Column {
spacing: units.gu(3)
OptionSelector {
text: i18n.tr("Label")
model: [i18n.tr("Value 1"),
i18n.tr("Value 2"),
i18n.tr("Value 3"),
i18n.tr("Value 4")]
}
OptionSelector {
text: i18n.tr("Label")
expanded: true
model: [i18n.tr("Value 1"),
i18n.tr("Value 2"),
i18n.tr("Value 3"),
i18n.tr("Value 4")]
}
OptionSelector {
objectName: "optionselector_multipleselection"
text: i18n.tr("Multiple Selection")
expanded: false
multiSelection: true
model: [i18n.tr("Value 1"),
i18n.tr("Value 2"),
i18n.tr("Value 3"),
i18n.tr("Value 4")]
}
OptionSelector {
text: i18n.tr("Label")
model: customModel
expanded: true
colourImage: true
delegate: selectorDelegate
}
Component {
id: selectorDelegate
OptionSelectorDelegate { text: name; subText: description; iconSource: image }
}
ListModel {
id: customModel
ListElement { name: "Name 1"; description: "Description 1"; image: "images.png" }
ListElement { name: "Name 2"; description: "Description 2"; image: "images.png" }
ListElement { name: "Name 3"; description: "Description 3"; image: "images.png" }
ListElement { name: "Name 4"; description: "Description 4"; image: "images.png" }
}
OptionSelector {
text: i18n.tr("Label")
model: [i18n.tr("Value 1"),
i18n.tr("Value 2"),
i18n.tr("Value 3"),
i18n.tr("Value 4"),
i18n.tr("Value 5"),
i18n.tr("Value 6"),
i18n.tr("Value 7"),
i18n.tr("Value 8")]
containerHeight: itemHeight * 4
}
OptionSelector {
text: i18n.tr("Label")
expanded: true
model: [i18n.tr("Value 1"),
i18n.tr("Value 2"),
i18n.tr("Value 3"),
i18n.tr("Value 4"),
i18n.tr("Value 5"),
i18n.tr("Value 6"),
i18n.tr("Value 7"),
i18n.tr("Value 8")]
containerHeight: itemHeight * 4
}
}
\endqml
*/
ListItem.Empty {
id: optionSelector
/*!
The list of values that will be shown under the label text. This is a model.
*/
property var model
/*!
Specifies whether the list is always expanded.
*/
property bool expanded: false
/*!
If the multiple choice selection is enabled the list is always expanded.
*/
property bool multiSelection: false
/*!
Colours image according to the fieldText colour of the theme, otherwise source colour is maintained.
*/
property bool colourImage: false
/*!
ListView delegate.
*/
property Component delegate: Toolkit.OptionSelectorDelegate {}
/*!
Custom height for list container which allows scrolling inside the selector.
*/
property real containerHeight: {
/*The reason for this slightly unconventional method of setting the container height
is due to the fact that if we set it to the selector height by default (which is
bound to the colum height) then we wouldn't be able to scroll to the end of the bottom
boundary. The text is also invisible if none is set so this is taken into account too.*/
var textHeight = text === "" ? 0 : label.height + column.spacing;
if (parent && parent.height < list.contentHeight) {
return parent.height - textHeight;
} else {
list.contentHeight;
}
}
/*!
\qmlproperty int selectedIndex
The index of the currently selected element in our list.
*/
property alias selectedIndex: list.currentIndex
/*!
\qmlproperty bool currentlyExpanded
Is our list currently expanded?
*/
property alias currentlyExpanded: listContainer.currentlyExpanded
/*!
\qmlproperty real itemHeight
Height of an individual list item.
*/
readonly property alias itemHeight: list.itemHeight
/*!
Called when delegate is clicked.
*/
signal delegateClicked(int index)
/*!
Called when the selector has finished expanding or collapsing.
*/
signal expansionCompleted()
/*!
\internal
Trigger the action, passing the current index.
*/
onDelegateClicked: {
trigger(index)
}
__height: column.height
showDivider: false
Column {
id: column
spacing: units.gu(2)
anchors {
left: parent.left
right: parent.right
}
Toolkit.Label {
id : label
text: optionSelector.text
visible: optionSelector.text !== "" ? true : false
}
Toolkit.StyledItem {
id: listContainer
objectName: "listContainer"
activeFocusOnPress: true
readonly property url chevron: __styleInstance.chevron
readonly property url tick: __styleInstance.tick
readonly property color themeColour: theme.palette.normal.backgroundText
readonly property alias colourImage: optionSelector.colourImage
property bool currentlyExpanded: expanded || multiSelection
anchors {
left: parent.left
right: parent.right
}
state: optionSelector.expanded ? "expanded" : "collapsed"
styleName: "OptionSelectorStyle"
states: [ State {
name: "expanded"
when: listContainer.currentlyExpanded
PropertyChanges {
target: listContainer
height: list.contentHeight < containerHeight ? list.contentHeight : containerHeight
}
}, State {
name: "collapsed"
when: !listContainer.currentlyExpanded
PropertyChanges {
target: listContainer
height: list.itemHeight
}
}
]
transitions: [ Transition {
SequentialAnimation {
Toolkit.UbuntuNumberAnimation {
properties: "height"
duration: Toolkit.UbuntuAnimation.BriskDuration
}
ScriptAction {
script: {
if (listContainer.currentlyExpanded) {
expansionCompleted();
} else {
list.positionViewAtIndex(selectedIndex, ListView.Beginning);
}
}
}
}
}
]
ListView {
id: list
parent: listContainer.__styleInstance.content
property int previousIndex: -1
readonly property alias expanded: optionSelector.expanded
readonly property alias multiSelection: optionSelector.multiSelection
readonly property alias container: listContainer
property real itemHeight
signal delegateClicked(int index)
onMovementStarted: optionSelector.requestFocus(Qt.MouseFocusReason)
onFlickStarted: optionSelector.requestFocus(Qt.MouseFocusReason)
Toolkit.Mouse.onClicked: optionSelector.requestFocus(Qt.MouseFocusReason)
onDelegateClicked: optionSelector.delegateClicked(index);
interactive: listContainer.height !== list.contentHeight && listContainer.currentlyExpanded ? true : false
clip: true
currentIndex: 0
model: optionSelector.model
anchors.fill: parent
delegate: optionSelector.delegate
Behavior on contentY {
Toolkit.UbuntuNumberAnimation {
properties: "contentY"
duration: Toolkit.UbuntuAnimation.BriskDuration
}
}
}
}
}
}
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