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[calamares] Document how to hide the Quit button

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The Quit button can have its own logic at a QML level for
show/hide. It **ought** to follow the *quitVisible* property,
but can do additional work. Here, document how a distro might
choose to hide the Quit button on the last page (generally,
that's the "finished" page).
This commit is contained in:
Adriaan de Groot 2021-03-06 22:08:35 +01:00
parent 44602d0237
commit 992c673951
1 changed files with 17 additions and 1 deletions
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18
src/calamares/calamares-navigation.qml
View File

@ -46,10 +46,13 @@ Rectangle {
enabled: ViewManager.nextEnabled; enabled: ViewManager.nextEnabled;
visible: ViewManager.backAndNextVisible; visible: ViewManager.backAndNextVisible;
onClicked: { ViewManager.next(); } onClicked: { ViewManager.next(); }
// This margin goes in the "next" button, because the "quit"
// button can vanish and we want to keep the margin to
// the next-thing-in-the-navigation-panel around.
Layout.rightMargin: 3 * buttonBar.spacing;
} }
Button Button
{ {
Layout.leftMargin: 3 * buttonBar.spacing; // little gap from back/next
Layout.rightMargin: 2 * buttonBar.spacing Layout.rightMargin: 2 * buttonBar.spacing
text: ViewManager.quitLabel; text: ViewManager.quitLabel;
icon.name: ViewManager.quitIcon; icon.name: ViewManager.quitIcon;
@ -59,6 +62,19 @@ Rectangle {
ToolTip.delay: 1000 ToolTip.delay: 1000
ToolTip.text: ViewManager.quitTooltip; ToolTip.text: ViewManager.quitTooltip;
/*
* The ViewManager has settings -- user-controlled via the
* branding component, and party based on program state --
* whether the quit button should be enabled and visible.
*
* QML navigation *should* follow this pattern, but can also
* add other qualifications. For instance, you may have a
* "finished" module that handles quit in its own way, and
* want to hide the quit button then. The ViewManager has a
* current step and a total count, so compare them:
*
* visible: ViewManager.quitVisible && ( ViewManager.currentStepIndex < ViewManager.rowCount()-1);
*/
enabled: ViewManager.quitEnabled; enabled: ViewManager.quitEnabled;
visible: ViewManager.quitVisible; visible: ViewManager.quitVisible;
onClicked: { ViewManager.quit(); } onClicked: { ViewManager.quit(); }