291 lines
11 KiB
Swift
291 lines
11 KiB
Swift
//
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// Menu.swift
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// Adwaita
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//
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// Created by auto-generation on 10.02.24.
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//
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import CAdw
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import LevenshteinTransformations
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/// The `GtkMenuButton` widget is used to display a popup when clicked.
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///
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/// 
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///
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/// This popup can be provided either as a `GtkPopover` or as an abstract
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/// `GMenuModel`.
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///
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/// The `GtkMenuButton` widget can show either an icon (set with the
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/// [property@Gtk.MenuButton:icon-name] property) or a label (set with the
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/// [property@Gtk.MenuButton:label] property). If neither is explicitly set,
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/// a [class@Gtk.Image] is automatically created, using an arrow image oriented
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/// according to [property@Gtk.MenuButton:direction] or the generic
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/// “open-menu-symbolic” icon if the direction is not set.
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///
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/// The positioning of the popup is determined by the
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/// [property@Gtk.MenuButton:direction] property of the menu button.
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///
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/// For menus, the [property@Gtk.Widget:halign] and [property@Gtk.Widget:valign]
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/// properties of the menu are also taken into account. For example, when the
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/// direction is %GTK_ARROW_DOWN and the horizontal alignment is %GTK_ALIGN_START,
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/// the menu will be positioned below the button, with the starting edge
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/// (depending on the text direction) of the menu aligned with the starting
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/// edge of the button. If there is not enough space below the button, the
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/// menu is popped up above the button instead. If the alignment would move
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/// part of the menu offscreen, it is “pushed in”.
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///
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/// | | start | center | end |
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/// | - | --- | --- | --- |
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/// | **down** |  |  |  |
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/// | **up** |  |  |  |
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/// | **left** |  |  |  |
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/// | **right** |  |  |  |
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///
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/// # CSS nodes
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///
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/// ```
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/// menubutton
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/// ╰── button.toggle
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/// ╰── <content>╰── [arrow]
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/// ```
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///
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/// `GtkMenuButton` has a single CSS node with name `menubutton`
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/// which contains a `button` node with a `.toggle` style class.
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///
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/// If the button contains an icon, it will have the `.image-button` style class,
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/// if it contains text, it will have `.text-button` style class. If an arrow is
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/// visible in addition to an icon, text or a custom child, it will also have
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/// `.arrow-button` style class.
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///
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/// Inside the toggle button content, there is an `arrow` node for
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/// the indicator, which will carry one of the `.none`, `.up`, `.down`,
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/// `.left` or `.right` style classes to indicate the direction that
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/// the menu will appear in. The CSS is expected to provide a suitable
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/// image for each of these cases using the `-gtk-icon-source` property.
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///
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/// Optionally, the `menubutton` node can carry the `.circular` style class
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/// to request a round appearance.
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///
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/// # Accessibility
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///
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/// `GtkMenuButton` uses the %GTK_ACCESSIBLE_ROLE_BUTTON role.
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public struct Menu: Widget {
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/// Additional update functions for type extensions.
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var updateFunctions: [(ViewStorage) -> Void] = []
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/// Additional appear functions for type extensions.
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var appearFunctions: [(ViewStorage) -> Void] = []
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/// Whether the menu button is active.
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var active: Binding<Bool>?
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/// Whether to show a dropdown arrow even when using an icon or a custom child.
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var alwaysShowArrow: Bool?
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/// Whether the size of the button can be made smaller than the natural
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/// size of its contents.
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var canShrink: Bool?
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/// The child widget.
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var child: (() -> Body)?
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/// Whether the button has a frame.
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var hasFrame: Bool?
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/// The name of the icon used to automatically populate the button.
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var iconName: String?
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/// The label for the button.
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var label: String?
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/// The `GMenuModel` from which the popup will be created.
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///
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/// See [method@Gtk.MenuButton.set_menu_model] for the interaction
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/// with the [property@Gtk.MenuButton:popover] property.
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var menuModel: (() -> MenuContent)?
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/// Whether the menu button acts as a primary menu.
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///
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/// Primary menus can be opened using the <kbd>F10</kbd> key
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var primary: Bool?
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/// If set an underscore in the text indicates a mnemonic.
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var useUnderline: Bool?
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/// Emitted to when the menu button is activated.
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///
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/// The `::activate` signal on `GtkMenuButton` is an action signal and
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/// emitting it causes the button to pop up its menu.
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var activate: (() -> Void)?
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/// The application.
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var app: GTUIApp?
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/// The window.
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var window: GTUIApplicationWindow?
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/// Initialize `Menu`.
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public init() {
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}
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/// Get the widget's view storage.
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/// - Parameter modifiers: The view modifiers.
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/// - Returns: The view storage.
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public func container(modifiers: [(View) -> View]) -> ViewStorage {
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let storage = ViewStorage(gtk_menu_button_new()?.opaque())
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update(storage, modifiers: modifiers, updateProperties: true)
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if let childStorage = child?().widget(modifiers: modifiers).storage(modifiers: modifiers) {
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storage.content["child"] = [childStorage]
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gtk_menu_button_set_child(storage.pointer, childStorage.pointer?.cast())
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}
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if let declarative = menuModel?(), let app {
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let menu = g_menu_new()
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gtk_menu_button_set_menu_model(storage.pointer, menu?.cast())
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for item in declarative {
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item.addMenuItems(menu: menu, app: app, window: window)
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}
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}
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storage.notify(name: "active") {
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active?.wrappedValue = gtk_menu_button_get_active(storage.pointer) != 0
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}
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for function in appearFunctions {
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function(storage)
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}
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return storage
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}
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/// Update the widget's view storage.
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/// - Parameters:
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/// - storage: The view storage.
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/// - modifiers: The view modifiers.
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/// - updateProperties: Whether to update the view's properties.
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public func update(_ storage: ViewStorage, modifiers: [(View) -> View], updateProperties: Bool) {
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if let activate {
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storage.connectSignal(name: "activate", argCount: 0) {
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activate()
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}
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}
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storage.modify { widget in
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if let active, updateProperties {
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gtk_menu_button_set_active(widget, active.wrappedValue.cBool)
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}
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if let alwaysShowArrow, updateProperties {
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gtk_menu_button_set_always_show_arrow(widget, alwaysShowArrow.cBool)
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}
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if let canShrink, updateProperties {
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gtk_menu_button_set_can_shrink(widget, canShrink.cBool)
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}
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if let widget = storage.content["child"]?.first {
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child?().widget(modifiers: modifiers).update(widget, modifiers: modifiers, updateProperties: updateProperties)
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}
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if let hasFrame, updateProperties {
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gtk_menu_button_set_has_frame(widget, hasFrame.cBool)
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}
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if let iconName, updateProperties {
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gtk_menu_button_set_icon_name(widget, iconName)
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}
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if let label, storage.content["child"] == nil, updateProperties {
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gtk_menu_button_set_label(widget, label)
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}
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if let primary, updateProperties {
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gtk_menu_button_set_primary(widget, primary.cBool)
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}
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if let useUnderline, updateProperties {
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gtk_menu_button_set_use_underline(widget, useUnderline.cBool)
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}
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}
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for function in updateFunctions {
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function(storage)
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}
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}
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/// Whether the menu button is active.
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public func active(_ active: Binding<Bool>?) -> Self {
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var newSelf = self
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newSelf.active = active
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return newSelf
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}
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/// Whether to show a dropdown arrow even when using an icon or a custom child.
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public func alwaysShowArrow(_ alwaysShowArrow: Bool? = true) -> Self {
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var newSelf = self
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newSelf.alwaysShowArrow = alwaysShowArrow
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return newSelf
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}
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/// Whether the size of the button can be made smaller than the natural
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/// size of its contents.
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public func canShrink(_ canShrink: Bool? = true) -> Self {
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var newSelf = self
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newSelf.canShrink = canShrink
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return newSelf
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}
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/// The child widget.
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public func child(@ViewBuilder _ child: @escaping (() -> Body)) -> Self {
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var newSelf = self
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newSelf.child = child
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return newSelf
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}
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/// Whether the button has a frame.
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public func hasFrame(_ hasFrame: Bool? = true) -> Self {
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var newSelf = self
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newSelf.hasFrame = hasFrame
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return newSelf
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}
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/// The name of the icon used to automatically populate the button.
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public func iconName(_ iconName: String?) -> Self {
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var newSelf = self
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newSelf.iconName = iconName
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return newSelf
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}
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/// The label for the button.
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public func label(_ label: String?) -> Self {
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var newSelf = self
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newSelf.label = label
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return newSelf
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}
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/// The `GMenuModel` from which the popup will be created.
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///
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/// See [method@Gtk.MenuButton.set_menu_model] for the interaction
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/// with the [property@Gtk.MenuButton:popover] property.
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public func menuModel(app: GTUIApp, window: GTUIApplicationWindow? = nil, @MenuBuilder _ menuModel: @escaping (() -> MenuContent)) -> Self {
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var newSelf = self
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newSelf.menuModel = menuModel
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newSelf.app = app; newSelf.window = window
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return newSelf
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}
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/// Whether the menu button acts as a primary menu.
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///
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/// Primary menus can be opened using the <kbd>F10</kbd> key
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public func primary(_ primary: Bool? = true) -> Self {
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var newSelf = self
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newSelf.primary = primary
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return newSelf
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}
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/// If set an underscore in the text indicates a mnemonic.
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public func useUnderline(_ useUnderline: Bool? = true) -> Self {
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var newSelf = self
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newSelf.useUnderline = useUnderline
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return newSelf
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}
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/// Emitted to when the menu button is activated.
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///
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/// The `::activate` signal on `GtkMenuButton` is an action signal and
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/// emitting it causes the button to pop up its menu.
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public func activate(_ activate: @escaping () -> Void) -> Self {
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var newSelf = self
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newSelf.activate = activate
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return newSelf
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}
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}
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