Onboarding tour with AdwCarousel and navigation dots, skippable welcome screens. Use when adding a first-run tour or feature showcase to a GNOME app.
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Pattern extracted from gnome-tour.
<template class="Window" parent="AdwApplicationWindow">
<property name="default-width">960</property>
<property name="default-height">720</property>
<property name="content">
<object class="PaginatorWidget" id="paginator">
<object class="AdwToolbarView">
<child type="top">
<object class="GtkHeaderBar">
<property name="title-widget">
<object class="AdwCarouselIndicatorDots" id="carousel_dots">
<property name="carousel">carousel</property>
</object>
</property>
</object>
</child>
<property name="content">
<object class="GtkOverlay">
<!-- Previous button -->
<child type="overlay">
<object class="GtkButton" id="previous_btn">
<property name="margin-start">12</property>
<property name="icon-name">prev-large-symbolic</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="tooltip-text" translatable="yes">Previous</property>
<style><class name="circular"/></style>
</object>
</child>
<!-- Next button -->
<child type="overlay">
<object class="GtkButton" id="next_btn">
<property name="margin-end">12</property>
<property name="icon-name">next-large-symbolic</property>
<property name="halign">end</property>
<property name="valign">center</property>
<property name="tooltip-text" translatable="yes">Next</property>
<style><class name="circular"/></style>
</object>
</child>
<!-- Carousel -->
<object class="AdwCarousel" id="carousel">
<property name="hexpand">True</property>
<property name="vexpand">True</property>
</object>
</object>
</property>
</object>
</object>
</property>
</template>
<template class="ImagePageWidget" parent="GtkWidget">
<object class="GtkBox" id="container">
<property name="orientation">vertical</property>
<property name="spacing">12</property>
<property name="valign">center</property>
<property name="halign">center</property>
<property name="margin-bottom">48</property>
<property name="margin-top">12</property>
<property name="margin-start">12</property>
<property name="margin-end">12</property>
<object class="GtkPicture" id="picture">
<property name="can-shrink">true</property>
<property name="content-fit">contain</property>
</object>
<object class="GtkLabel" id="head_label">
<property name="justify">center</property>
<property name="margin-top">36</property>
<style><class name="title-1"/></style>
</object>
<object class="GtkLabel">
<property name="lines">2</property>
<property name="wrap">true</property>
<property name="justify">center</property>
<property name="margin-top">12</property>
<style><class name="body"/></style>
</object>
</object>
</template>
On the final slide, replace the Next button with a suggested-action button:
<object class="GtkButton" id="start_btn">
<property name="margin-end">12</property>
<property name="icon-name">next-large-symbolic</property>
<property name="halign">end</property>
<property name="valign">center</property>
<style>
<class name="suggested-action"/>
<class name="circular"/>
</style>
</object>
Add GtkEventControllerKey for arrow key navigation:
<child>
<object class="GtkEventControllerKey">
<signal name="key-pressed" handler="on_key_pressed"/>
</object>
</child>
| Value | Where |
|---|---|
12 | Default margins, box spacing |
36 | Image ↔ heading gap |
48 | Bottom margin (offset from carousel dots) |
12 | Nav button edge margin |
title-1 for headings (lots of whitespace in carousel)body class for description textGtkPicture for scalable SVG illustrations还没有评价。欢迎分享你的使用感受。
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Add a standard AdwAboutDialog wired to app metadata, plus the AppStream metainfo file it should share data with. Use when adding an About entry, release notes, credits, or preparing app metadata.
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Make a GTK4/libadwaita app accessible — accessible labels and roles, tooltips on icon-only buttons, keyboard navigation, contrast, and testing with Orca/Accerciser. Use when fixing a11y issues or running the accessibility category of a HIG audit.
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Responsive GNOME layouts: AdwBreakpoint conditions, BreakpointBin, MultiLayoutView, BottomSheet, narrow/wide layout swaps. Use when making an app work on phones or narrow windows.
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Implement GNOME's 4-tier destructive-action pattern: undo toasts instead of confirmation dialogs, AdwAlertDialog for irreversible actions. Use when adding delete, remove, clear, or other destructive actions.
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Loading, empty, and error states with AdwStatusPage and AdwSpinner — placeholder icons, titles, action buttons. Use when an app view can be empty, loading, or failed.
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Package a GNOME app as a Flatpak — manifest for the GNOME runtime, sandbox permissions, build/run/test loop, and Flathub submission checklist. Use when packaging, distributing, or preparing a GNOME app for Flathub.
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