class Adw::Leaflet

Overview

An adaptive container acting like a box or a stack.

leaflet-wide leaflet-narrow

The Adw::Leaflet widget can display its children like a Gtk::Box does or like a Gtk::Stack does, adapting to size changes by switching between the two modes.

When there is enough space the children are displayed side by side, otherwise only one is displayed and the leaflet is said to be “folded”. The threshold is dictated by the preferred minimum sizes of the children. When a leaflet is folded, the children can be navigated using swipe gestures.

The “over” and “under” transition types stack the children one on top of the other, while the “slide” transition puts the children side by side. While navigating to a child on the side or below can be performed by swiping the current child away, navigating to an upper child requires dragging it from the edge where it resides. This doesn't affect non-dragging swipes.

CSS nodes

Adw::Leaflet has a single CSS node with name leaflet. The node will get the style classes .folded when it is folded, .unfolded when it's not, or none if it hasn't computed its fold yet.

Included Modules

Defined in:

lib/gi-crystal/src/auto/adw-1/leaflet.cr

Constructors

Class Method Summary

Instance Method Summary

Instance methods inherited from module Gtk::Orientable

orientation : Gtk::Orientation orientation, orientation=(orientation : Gtk::Orientation) : Nil orientation=, to_unsafe to_unsafe

Class methods inherited from module Gtk::Orientable

g_type : UInt64 g_type

Instance methods inherited from module Adw::Swipeable

cancel_progress : Float64 cancel_progress, distance : Float64 distance, progress : Float64 progress, snap_points : Enumerable(Float64) snap_points, swipe_area(navigation_direction : Adw::NavigationDirection, is_drag : Bool) : Gdk::Rectangle swipe_area, to_unsafe to_unsafe

Class methods inherited from module Adw::Swipeable

g_type : UInt64 g_type

Instance methods inherited from module Gtk::ConstraintTarget

to_unsafe to_unsafe

Class methods inherited from module Gtk::ConstraintTarget

g_type : UInt64 g_type

Instance methods inherited from module Gtk::Buildable

buildable_id : String? buildable_id, to_unsafe to_unsafe

Class methods inherited from module Gtk::Buildable

g_type : UInt64 g_type

Instance methods inherited from module Gtk::Accessible

accessible_role : Gtk::AccessibleRole accessible_role, accessible_role=(value : Gtk::AccessibleRole) : Gtk::AccessibleRole accessible_role=, reset_property(property : Gtk::AccessibleProperty) : Nil reset_property, reset_relation(relation : Gtk::AccessibleRelation) : Nil reset_relation, reset_state(state : Gtk::AccessibleState) : Nil reset_state, to_unsafe to_unsafe, update_property(properties : Enumerable(Gtk::AccessibleProperty), values : Enumerable(_)) : Nil update_property, update_relation(relations : Enumerable(Gtk::AccessibleRelation), values : Enumerable(_)) : Nil update_relation, update_state(states : Enumerable(Gtk::AccessibleState), values : Enumerable(_)) : Nil update_state

Class methods inherited from module Gtk::Accessible

g_type : UInt64 g_type

Instance methods inherited from class Gtk::Widget

action_set_enabled(action_name : String, enabled : Bool) : Nil action_set_enabled, activate : Bool activate, activate_action(name : String, args : _?) : Bool activate_action, activate_default : Nil activate_default, add_controller(controller : Gtk::EventController) : Nil add_controller, add_css_class(css_class : String) : Nil add_css_class, add_mnemonic_label(label : Gtk::Widget) : Nil add_mnemonic_label, add_tick_callback(callback : Gtk::TickCallback) : UInt32 add_tick_callback, allocate(width : Int32, height : Int32, baseline : Int32, transform : Gsk::Transform?) : Nil allocate, allocated_baseline : Int32 allocated_baseline, allocated_height : Int32 allocated_height, allocated_width : Int32 allocated_width, allocation : Gdk::Rectangle allocation, ancestor(widget_type : UInt64) : Gtk::Widget? ancestor, can_focus : Bool can_focus, can_focus=(can_focus : Bool) : Nil can_focus=, can_focus? : Bool can_focus?, can_target : Bool can_target, can_target=(can_target : Bool) : Nil can_target=, can_target? : Bool can_target?, child_focus(direction : Gtk::DirectionType) : Bool child_focus, child_visible : Bool child_visible, child_visible=(child_visible : Bool) : Nil child_visible=, clipboard : Gdk::Clipboard clipboard, compute_bounds(target : Gtk::Widget) : Graphene::Rect compute_bounds, compute_expand(orientation : Gtk::Orientation) : Bool compute_expand, compute_point(target : Gtk::Widget, point : Graphene::Point) : Graphene::Point compute_point, compute_transform(target : Gtk::Widget) : Graphene::Matrix compute_transform, contains(x : Float64, y : Float64) : Bool contains, create_pango_context : Pango::Context create_pango_context, create_pango_layout(text : String?) : Pango::Layout create_pango_layout, css_classes : Enumerable(String) css_classes, css_classes=(classes : Enumerable(String)) : Nil css_classes=, css_name : String css_name, css_name=(value : String) : String css_name=, cursor : Gdk::Cursor? cursor, cursor=(cursor : Gdk::Cursor?) : Nil cursor=, cursor_from_name=(name : String?) : Nil cursor_from_name=, destroy_signal destroy_signal, direction : Gtk::TextDirection direction, direction=(dir : Gtk::TextDirection) : Nil direction=, direction_changed_signal direction_changed_signal, display : Gdk::Display display, dispose_template(widget_type : UInt64) : Nil dispose_template, drag_check_threshold(start_x : Int32, start_y : Int32, current_x : Int32, current_y : Int32) : Bool drag_check_threshold, error_bell : Nil error_bell, first_child : Gtk::Widget? first_child, focus_child : Gtk::Widget? focus_child, focus_child=(child : Gtk::Widget?) : Nil focus_child=, focus_on_click : Bool focus_on_click, focus_on_click=(focus_on_click : Bool) : Nil focus_on_click=, focus_on_click? : Bool focus_on_click?, focusable : Bool focusable, focusable=(focusable : Bool) : Nil focusable=, focusable? : Bool focusable?, font_map : Pango::FontMap? font_map, font_map=(font_map : Pango::FontMap?) : Nil font_map=, font_options : Cairo::FontOptions? font_options, font_options=(options : Cairo::FontOptions?) : Nil font_options=, frame_clock : Gdk::FrameClock? frame_clock, grab_focus : Bool grab_focus, halign : Gtk::Align halign, halign=(align : Gtk::Align) : Nil halign=, has_css_class(css_class : String) : Bool has_css_class, has_default : Bool has_default, has_default? : Bool has_default?, has_focus : Bool has_focus, has_focus? : Bool has_focus?, has_tooltip : Bool has_tooltip, has_tooltip=(has_tooltip : Bool) : Nil has_tooltip=, has_tooltip? : Bool has_tooltip?, has_visible_focus : Bool has_visible_focus, height : Int32 height, height_request : Int32 height_request, height_request=(value : Int32) : Int32 height_request=, hexpand : Bool hexpand, hexpand=(expand : Bool) : Nil hexpand=, hexpand? : Bool hexpand?, hexpand_set : Bool hexpand_set, hexpand_set=(set : Bool) : Nil hexpand_set=, hexpand_set? : Bool hexpand_set?, hide : Nil hide, hide_signal hide_signal, in_destruction : Bool in_destruction, init_template : Nil init_template, insert_action_group(name : String, group : Gio::ActionGroup?) : Nil insert_action_group, insert_after(parent : Gtk::Widget, previous_sibling : Gtk::Widget?) : Nil insert_after, insert_before(parent : Gtk::Widget, next_sibling : Gtk::Widget?) : Nil insert_before, is_ancestor(ancestor : Gtk::Widget) : Bool is_ancestor, is_drawable : Bool is_drawable, is_focus : Bool is_focus, is_sensitive : Bool is_sensitive, is_visible : Bool is_visible, keynav_failed(direction : Gtk::DirectionType) : Bool keynav_failed, keynav_failed_signal keynav_failed_signal, last_child : Gtk::Widget? last_child, layout_manager : Gtk::LayoutManager? layout_manager, layout_manager=(layout_manager : Gtk::LayoutManager?) : Nil layout_manager=, list_mnemonic_labels : GLib::List list_mnemonic_labels, map : Nil map, map_signal map_signal, mapped : Bool mapped, margin_bottom : Int32 margin_bottom, margin_bottom=(margin : Int32) : Nil margin_bottom=, margin_end : Int32 margin_end, margin_end=(margin : Int32) : Nil margin_end=, margin_start : Int32 margin_start, margin_start=(margin : Int32) : Nil margin_start=, margin_top : Int32 margin_top, margin_top=(margin : Int32) : Nil margin_top=, measure(orientation : Gtk::Orientation, for_size : Int32) : Nil measure, mnemonic_activate(group_cycling : Bool) : Bool mnemonic_activate, mnemonic_activate_signal mnemonic_activate_signal, move_focus_signal move_focus_signal, name : String name, name=(name : String) : Nil name=, native : Gtk::Native? native, next_sibling : Gtk::Widget? next_sibling, observe_children : Gio::ListModel observe_children, observe_controllers : Gio::ListModel observe_controllers, opacity : Float64 opacity, opacity=(opacity : Float64) : Nil opacity=, overflow : Gtk::Overflow overflow, overflow=(overflow : Gtk::Overflow) : Nil overflow=, pango_context : Pango::Context pango_context, parent : Gtk::Widget? parent, parent=(parent : Gtk::Widget) : Nil parent=, pick(x : Float64, y : Float64, flags : Gtk::PickFlags) : Gtk::Widget? pick, preferred_size : Gtk::Requisition preferred_size, prev_sibling : Gtk::Widget? prev_sibling, primary_clipboard : Gdk::Clipboard primary_clipboard, query_tooltip_signal query_tooltip_signal, queue_allocate : Nil queue_allocate, queue_draw : Nil queue_draw, queue_resize : Nil queue_resize, realize : Nil realize, realize_signal realize_signal, realized : Bool realized, receives_default : Bool receives_default, receives_default=(receives_default : Bool) : Nil receives_default=, receives_default? : Bool receives_default?, remove_controller(controller : Gtk::EventController) : Nil remove_controller, remove_css_class(css_class : String) : Nil remove_css_class, remove_mnemonic_label(label : Gtk::Widget) : Nil remove_mnemonic_label, remove_tick_callback(id : UInt32) : Nil remove_tick_callback, request_mode : Gtk::SizeRequestMode request_mode, root : Gtk::Root? root, scale_factor : Int32 scale_factor, sensitive : Bool sensitive, sensitive=(sensitive : Bool) : Nil sensitive=, sensitive? : Bool sensitive?, set_size_request(width : Int32, height : Int32) : Nil set_size_request, set_state_flags(flags : Gtk::StateFlags, clear : Bool) : Nil set_state_flags, settings : Gtk::Settings settings, should_layout : Bool should_layout, show : Nil show, show_signal show_signal, size(orientation : Gtk::Orientation) : Int32 size, size_allocate(allocation : Gdk::Rectangle, baseline : Int32) : Nil size_allocate, size_request : Nil size_request, snapshot_child(child : Gtk::Widget, snapshot : Gtk::Snapshot) : Nil snapshot_child, state_flags : Gtk::StateFlags state_flags, state_flags_changed_signal state_flags_changed_signal, style_context : Gtk::StyleContext style_context, tooltip_markup : String? tooltip_markup, tooltip_markup=(value : String) : String
tooltip_markup=(markup : String?) : Nil tooltip_markup=, tooltip_text : String? tooltip_text, tooltip_text=(value : String) : String
tooltip_text=(text : String?) : Nil tooltip_text=, translate_coordinates(dest_widget : Gtk::Widget, src_x : Float64, src_y : Float64) : Bool translate_coordinates, trigger_tooltip_query : Nil trigger_tooltip_query, unmap : Nil unmap, unmap_signal unmap_signal, unparent : Nil unparent, unrealize : Nil unrealize, unrealize_signal unrealize_signal, unset_state_flags(flags : Gtk::StateFlags) : Nil unset_state_flags, valign : Gtk::Align valign, valign=(align : Gtk::Align) : Nil valign=, vexpand : Bool vexpand, vexpand=(expand : Bool) : Nil vexpand=, vexpand? : Bool vexpand?, vexpand_set : Bool vexpand_set, vexpand_set=(set : Bool) : Nil vexpand_set=, vexpand_set? : Bool vexpand_set?, visible : Bool visible, visible=(visible : Bool) : Nil visible=, visible? : Bool visible?, width : Int32 width, width_request : Int32 width_request, width_request=(value : Int32) : Int32 width_request=

Constructor methods inherited from class Gtk::Widget

new
new(*, accessible_role : Gtk::AccessibleRole? = nil, can_focus : Bool? = nil, can_target : Bool? = nil, css_classes : Enumerable(String)? = nil, css_name : String? = nil, cursor : Gdk::Cursor? = nil, focus_on_click : Bool? = nil, focusable : Bool? = nil, halign : Gtk::Align? = nil, has_default : Bool? = nil, has_focus : Bool? = nil, has_tooltip : Bool? = nil, height_request : Int32? = nil, hexpand : Bool? = nil, hexpand_set : Bool? = nil, layout_manager : Gtk::LayoutManager? = nil, margin_bottom : Int32? = nil, margin_end : Int32? = nil, margin_start : Int32? = nil, margin_top : Int32? = nil, name : String? = nil, opacity : Float64? = nil, overflow : Gtk::Overflow? = nil, parent : Gtk::Widget? = nil, receives_default : Bool? = nil, root : Gtk::Root? = nil, scale_factor : Int32? = nil, sensitive : Bool? = nil, tooltip_markup : String? = nil, tooltip_text : String? = nil, valign : Gtk::Align? = nil, vexpand : Bool? = nil, vexpand_set : Bool? = nil, visible : Bool? = nil, width_request : Int32? = nil) new

Class methods inherited from class Gtk::Widget

default_direction : Gtk::TextDirection default_direction, default_direction=(dir : Gtk::TextDirection) : Nil default_direction=, g_type : UInt64 g_type

Instance methods inherited from module Gtk::ConstraintTarget

to_unsafe to_unsafe

Class methods inherited from module Gtk::ConstraintTarget

g_type : UInt64 g_type

Instance methods inherited from module Gtk::Buildable

buildable_id : String? buildable_id, to_unsafe to_unsafe

Class methods inherited from module Gtk::Buildable

g_type : UInt64 g_type

Instance methods inherited from module Gtk::Accessible

accessible_role : Gtk::AccessibleRole accessible_role, accessible_role=(value : Gtk::AccessibleRole) : Gtk::AccessibleRole accessible_role=, reset_property(property : Gtk::AccessibleProperty) : Nil reset_property, reset_relation(relation : Gtk::AccessibleRelation) : Nil reset_relation, reset_state(state : Gtk::AccessibleState) : Nil reset_state, to_unsafe to_unsafe, update_property(properties : Enumerable(Gtk::AccessibleProperty), values : Enumerable(_)) : Nil update_property, update_relation(relations : Enumerable(Gtk::AccessibleRelation), values : Enumerable(_)) : Nil update_relation, update_state(states : Enumerable(Gtk::AccessibleState), values : Enumerable(_)) : Nil update_state

Class methods inherited from module Gtk::Accessible

g_type : UInt64 g_type

Constructor methods inherited from class GObject::InitiallyUnowned

new new

Class methods inherited from class GObject::InitiallyUnowned

g_type : UInt64 g_type

Instance methods inherited from class GObject::Object

bind_property(source_property : String, target : GObject::Object, target_property : String, flags : GObject::BindingFlags) : GObject::Binding bind_property, bind_property_full(source_property : String, target : GObject::Object, target_property : String, flags : GObject::BindingFlags, transform_to : GObject::Closure, transform_from : GObject::Closure) : GObject::Binding bind_property_full, data(key : String) : Pointer(Void)? data, finalize finalize, freeze_notify : Nil freeze_notify, getv(names : Enumerable(String), values : Enumerable(_)) : Nil getv, notify(property_name : String) : Nil notify, notify_by_pspec(pspec : GObject::ParamSpec) : Nil notify_by_pspec, notify_signal notify_signal, property(property_name : String, value : _) : Nil property, qdata(quark : UInt32) : Pointer(Void)? qdata, ref_count : UInt32 ref_count, run_dispose : Nil run_dispose, set_data(key : String, data : Pointer(Void)?) : Nil set_data, set_property(property_name : String, value : _) : Nil set_property, steal_data(key : String) : Pointer(Void)? steal_data, steal_qdata(quark : UInt32) : Pointer(Void)? steal_qdata, thaw_notify : Nil thaw_notify, to_unsafe : Pointer(Void) to_unsafe, watch_closure(closure : GObject::Closure) : Nil watch_closure

Constructor methods inherited from class GObject::Object

cast(obj : GObject::Object) : self cast, cast?(obj : GObject::Object) : self? cast?, new(pointer : Pointer(Void), transfer : GICrystal::Transfer)
new new, newv(object_type : UInt64, parameters : Enumerable(GObject::Parameter)) : self newv

Class methods inherited from class GObject::Object

compat_control(what : UInt64, data : Pointer(Void)?) : UInt64 compat_control, g_type : UInt64 g_type, interface_find_property(g_iface : GObject::TypeInterface, property_name : String) : GObject::ParamSpec interface_find_property, interface_list_properties(g_iface : GObject::TypeInterface) : Enumerable(GObject::ParamSpec) interface_list_properties

Constructor Detail

def self.new : self #

Creates a new Adw::Leaflet.


def self.new(*, accessible_role : Gtk::AccessibleRole? = nil, can_focus : Bool? = nil, can_navigate_back : Bool? = nil, can_navigate_forward : Bool? = nil, can_target : Bool? = nil, can_unfold : Bool? = nil, child_transition_params : Adw::SpringParams? = nil, child_transition_running : Bool? = nil, css_classes : Enumerable(String)? = nil, css_name : String? = nil, cursor : Gdk::Cursor? = nil, focus_on_click : Bool? = nil, focusable : Bool? = nil, fold_threshold_policy : Adw::FoldThresholdPolicy? = nil, folded : Bool? = nil, halign : Gtk::Align? = nil, has_default : Bool? = nil, has_focus : Bool? = nil, has_tooltip : Bool? = nil, height_request : Int32? = nil, hexpand : Bool? = nil, hexpand_set : Bool? = nil, homogeneous : Bool? = nil, layout_manager : Gtk::LayoutManager? = nil, margin_bottom : Int32? = nil, margin_end : Int32? = nil, margin_start : Int32? = nil, margin_top : Int32? = nil, mode_transition_duration : UInt32? = nil, name : String? = nil, opacity : Float64? = nil, orientation : Gtk::Orientation? = nil, overflow : Gtk::Overflow? = nil, pages : Gtk::SelectionModel? = nil, parent : Gtk::Widget? = nil, receives_default : Bool? = nil, root : Gtk::Root? = nil, scale_factor : Int32? = nil, sensitive : Bool? = nil, tooltip_markup : String? = nil, tooltip_text : String? = nil, transition_type : Adw::LeafletTransitionType? = nil, valign : Gtk::Align? = nil, vexpand : Bool? = nil, vexpand_set : Bool? = nil, visible : Bool? = nil, visible_child : Gtk::Widget? = nil, visible_child_name : String? = nil, width_request : Int32? = nil) #

Class Method Detail

def self.g_type : UInt64 #

Returns the type id (GType) registered in GLib type system.


Instance Method Detail

def adjacent_child(direction : Adw::NavigationDirection) : Gtk::Widget? #

Finds the previous or next navigatable child.

This will be the same child Leaflet::navigate or swipe gestures will navigate to.

If there's no child to navigate to, NULL will be returned instead.

See LeafletPage::navigatable.


def append(child : Gtk::Widget) : Adw::LeafletPage #

Adds a child to @self.


def can_navigate_back : Bool #

Gets whether gestures and shortcuts for navigating backward are enabled.


def can_navigate_back=(can_navigate_back : Bool) : Nil #

Sets whether gestures and shortcuts for navigating backward are enabled.

The supported gestures are:

  • One-finger swipe on touchscreens
  • Horizontal scrolling on touchpads (usually two-finger swipe)
  • Back/forward mouse buttons

The keyboard back/forward keys are also supported, as well as the Alt+← shortcut for horizontal orientation, or Alt+↑ for vertical orientation.

If the orientation is horizontal, for right-to-left locales, gestures and shortcuts are reversed.

Only children that have LeafletPage::navigatable set to TRUE can be navigated to.


def can_navigate_back? : Bool #

def can_navigate_forward : Bool #

Gets whether gestures and shortcuts for navigating forward are enabled.


def can_navigate_forward=(can_navigate_forward : Bool) : Nil #

Sets whether gestures and shortcuts for navigating forward are enabled.

The supported gestures are:

  • One-finger swipe on touchscreens
  • Horizontal scrolling on touchpads (usually two-finger swipe)
  • Back/forward mouse buttons

The keyboard back/forward keys are also supported, as well as the Alt+→ shortcut for horizontal orientation, or Alt+↓ for vertical orientation.

If the orientation is horizontal, for right-to-left locales, gestures and shortcuts are reversed.

Only children that have LeafletPage::navigatable set to TRUE can be navigated to.


def can_navigate_forward? : Bool #

def can_unfold : Bool #

Gets whether @self can unfold.


def can_unfold=(can_unfold : Bool) : Nil #

Sets whether @self can unfold.


def can_unfold? : Bool #

def child_by_name(name : String) : Gtk::Widget? #

Finds the child of @self with @name.

Returns NULL if there is no child with this name.

See LeafletPage::name.


def child_transition_params : Adw::SpringParams #

Gets the child transition spring parameters for @self.


def child_transition_params=(params : Adw::SpringParams) : Nil #

Sets the child transition spring parameters for @self.

The default value is equivalent to:

WARNING ⚠️ The following code is in c ⚠️

adw_spring_params_new (1, 0.5, 500)

def child_transition_running : Bool #

Gets whether a child transition is currently running for @self.


def child_transition_running? : Bool #

def fold_threshold_policy : Adw::FoldThresholdPolicy #

Gets the fold threshold policy for @self.


def fold_threshold_policy=(policy : Adw::FoldThresholdPolicy) : Nil #

Sets the fold threshold policy for @self.

If set to ADW_FOLD_THRESHOLD_POLICY_MINIMUM, it will only fold when the children cannot fit anymore. With ADW_FOLD_THRESHOLD_POLICY_NATURAL, it will fold as soon as children don't get their natural size.

This can be useful if you have a long ellipsizing label and want to let it ellipsize instead of immediately folding.


def folded : Bool #

Gets whether @self is folded.

The leaflet will be folded if the size allocated to it is smaller than the sum of the minimum or natural sizes of the children (see [property@Leaflet:fold-threshold-policy]), it will be unfolded otherwise.


def folded? : Bool #

def homogeneous : Bool #

Gets whether @self is homogeneous.


def homogeneous=(homogeneous : Bool) : Nil #

Sets @self to be homogeneous or not.

If set to FALSE, different children can have different size along the opposite orientation.


def homogeneous? : Bool #

def insert_child_after(child : Gtk::Widget, sibling : Gtk::Widget?) : Adw::LeafletPage #

Inserts @child in the position after @sibling in the list of children.

If @sibling is NULL, inserts @child at the first position.


def mode_transition_duration : UInt32 #

Gets the mode transition animation duration for @self.


def mode_transition_duration=(duration : UInt32) : Nil #

Sets the mode transition animation duration for @self.


def navigate(direction : Adw::NavigationDirection) : Bool #

Navigates to the previous or next child.

The child must have the LeafletPage::navigatable property set to TRUE, otherwise it will be skipped.

This will be the same child as returned by Leaflet#adjacent_child or navigated to via swipe gestures.


def page(child : Gtk::Widget) : Adw::LeafletPage #

Returns the #LeafletPage object for @child.


def pages : Gtk::SelectionModel #

Returns a Gio::ListModel that contains the pages of the leaflet.

This can be used to keep an up-to-date view. The model also implements Gtk::SelectionModel and can be used to track and change the visible page.


def prepend(child : Gtk::Widget) : Adw::LeafletPage #

Inserts @child at the first position in @self.


def remove(child : Gtk::Widget) : Nil #

Removes a child widget from @self.


def reorder_child_after(child : Gtk::Widget, sibling : Gtk::Widget?) : Nil #

Moves @child to the position after @sibling in the list of children.

If @sibling is NULL, moves @child to the first position.


def transition_type : Adw::LeafletTransitionType #

Gets the type of animation used for transitions between modes and children.


def transition_type=(transition : Adw::LeafletTransitionType) : Nil #

Sets the type of animation used for transitions between modes and children.

The transition type can be changed without problems at runtime, so it is possible to change the animation based on the mode or child that is about to become current.


def visible_child : Gtk::Widget? #

Gets the widget currently visible when the leaflet is folded.


def visible_child=(visible_child : Gtk::Widget) : Nil #

Sets the widget currently visible when the leaflet is folded.

The transition is determined by [property@Leaflet:transition-type] and [property@Leaflet:child-transition-params]. The transition can be cancelled by the user, in which case visible child will change back to the previously visible child.


def visible_child=(value : Gtk::Widget?) : Gtk::Widget? #

def visible_child_name : String? #

Gets the name of the currently visible child widget.


def visible_child_name=(name : String) : Nil #

Makes the child with the name @name visible.

See [property@Leaflet:visible-child].