pub struct Popover { /* private fields */ }
Expand description
Popover
is a bubble-like context popup.
It is primarily meant to provide context-dependent information
or options. Popovers are attached to a parent widget. By default,
they point to the whole widget area, although this behavior can be
changed with PopoverExt::set_pointing_to()
.
The position of a popover relative to the widget it is attached to
can also be changed with PopoverExt::set_position()
By default, Popover
performs a grab, in order to ensure input
events get redirected to it while it is shown, and also so the popover
is dismissed in the expected situations (clicks outside the popover,
or the Escape key being pressed). If no such modal behavior is desired
on a popover, PopoverExt::set_autohide()
may be called on it to
tweak its behavior.
§GtkPopover as menu replacement
Popover
is often used to replace menus. The best was to do this
is to use the PopoverMenu
subclass which supports being
populated from a GMenuModel
with PopoverMenu::from_model()
.
<section>
<attribute name="display-hint">horizontal-buttons</attribute>
<item>
<attribute name="label">Cut</attribute>
<attribute name="action">app.cut</attribute>
<attribute name="verb-icon">edit-cut-symbolic</attribute>
</item>
<item>
<attribute name="label">Copy</attribute>
<attribute name="action">app.copy</attribute>
<attribute name="verb-icon">edit-copy-symbolic</attribute>
</item>
<item>
<attribute name="label">Paste</attribute>
<attribute name="action">app.paste</attribute>
<attribute name="verb-icon">edit-paste-symbolic</attribute>
</item>
</section>
§Shortcuts and Gestures
Popover
supports the following keyboard shortcuts:
- Escape closes the popover.
- Alt makes the mnemonics visible.
The following signals have default keybindings:
§CSS nodes
popover.background[.menu]
├── arrow
╰── contents
╰── <child>
Popover
has a main node with name popover
, an arrow with name arrow
,
and another node for the content named contents
. The popover
node always
gets the .background
style class. It also gets the .menu
style class
if the popover is menu-like, e.g. is a PopoverMenu
.
Particular uses of Popover
, such as touch selection popups or
magnifiers in Entry
or TextView
get style classes like
.touch-selection
or .magnifier
to differentiate from plain popovers.
When styling a popover directly, the popover
node should usually
not have any background. The visible part of the popover can have
a shadow. To specify it in CSS, set the box-shadow of the contents
node.
Note that, in order to accomplish appropriate arrow visuals, Popover
uses custom drawing for the arrow
node. This makes it possible for the
arrow to change its shape dynamically, but it also limits the possibilities
of styling it using CSS. In particular, the arrow
gets drawn over the
content
node’s border and shadow, so they look like one shape, which
means that the border width of the content
node and the arrow
node should
be the same. The arrow also does not support any border shape other than
solid, no border-radius, only one border width (border-bottom-width is
used) and no box-shadow.
§Properties
§autohide
Whether to dismiss the popover on outside clicks.
Readable | Writeable
§cascade-popdown
Whether the popover pops down after a child popover.
This is used to implement the expected behavior of submenus.
Readable | Writeable
§child
The child widget.
Readable | Writeable
§default-widget
The default widget inside the popover.
Readable | Writeable
§has-arrow
Whether to draw an arrow.
Readable | Writeable
§mnemonics-visible
Whether mnemonics are currently visible in this popover.
Readable | Writeable
§pointing-to
Rectangle in the parent widget that the popover points to.
Readable | Writeable
§position
How to place the popover, relative to its parent.
Readable | Writeable
Widget
§can-focus
Whether the widget or any of its descendents can accept the input focus.
This property is meant to be set by widget implementations, typically in their instance init function.
Readable | Writeable
§can-target
Whether the widget can receive pointer events.
Readable | Writeable
§css-classes
A list of css classes applied to this widget.
Readable | Writeable
§css-name
The name of this widget in the CSS tree.
This property is meant to be set by widget implementations, typically in their instance init function.
Readable | Writeable | Construct Only
§cursor
The cursor used by @widget.
Readable | Writeable
§focus-on-click
Whether the widget should grab focus when it is clicked with the mouse.
This property is only relevant for widgets that can take focus.
Readable | Writeable
§focusable
Whether this widget itself will accept the input focus.
Readable | Writeable
§halign
How to distribute horizontal space if widget gets extra space.
Readable | Writeable
§has-default
Whether the widget is the default widget.
Readable
§has-focus
Whether the widget has the input focus.
Readable
§has-tooltip
Enables or disables the emission of the ::query-tooltip signal on @widget.
A value of true
indicates that @widget can have a tooltip, in this case
the widget will be queried using query-tooltip
to
determine whether it will provide a tooltip or not.
Readable | Writeable
§height-request
Override for height request of the widget.
If this is -1, the natural request will be used.
Readable | Writeable
§hexpand
Whether to expand horizontally.
Readable | Writeable
§hexpand-set
Whether to use the hexpand
property.
Readable | Writeable
§layout-manager
The LayoutManager
instance to use to compute the preferred size
of the widget, and allocate its children.
This property is meant to be set by widget implementations, typically in their instance init function.
Readable | Writeable
§margin-bottom
Margin on bottom side of widget.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Readable | Writeable
§margin-end
Margin on end of widget, horizontally.
This property supports left-to-right and right-to-left text directions.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Readable | Writeable
§margin-start
Margin on start of widget, horizontally.
This property supports left-to-right and right-to-left text directions.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Readable | Writeable
§margin-top
Margin on top side of widget.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Readable | Writeable
§name
The name of the widget.
Readable | Writeable
§opacity
The requested opacity of the widget.
Readable | Writeable
§overflow
How content outside the widget’s content area is treated.
This property is meant to be set by widget implementations, typically in their instance init function.
Readable | Writeable
§parent
The parent widget of this widget.
Readable
§receives-default
Whether the widget will receive the default action when it is focused.
Readable | Writeable
§root
The Root
widget of the widget tree containing this widget.
This will be None
if the widget is not contained in a root widget.
Readable
§scale-factor
The scale factor of the widget.
Readable
§sensitive
Whether the widget responds to input.
Readable | Writeable
§tooltip-markup
Sets the text of tooltip to be the given string, which is marked up with Pango markup.
Also see Tooltip::set_markup()
.
This is a convenience property which will take care of getting the
tooltip shown if the given string is not None
:
has-tooltip
will automatically be set to true
and there will be taken care of query-tooltip
in
the default signal handler.
Note that if both tooltip-text
and
tooltip-markup
are set, the last one wins.
Readable | Writeable
§tooltip-text
Sets the text of tooltip to be the given string.
Also see Tooltip::set_text()
.
This is a convenience property which will take care of getting the
tooltip shown if the given string is not None
:
has-tooltip
will automatically be set to true
and there will be taken care of query-tooltip
in
the default signal handler.
Note that if both tooltip-text
and
tooltip-markup
are set, the last one wins.
Readable | Writeable
§valign
How to distribute vertical space if widget gets extra space.
Readable | Writeable
§vexpand
Whether to expand vertically.
Readable | Writeable
§vexpand-set
Whether to use the vexpand
property.
Readable | Writeable
§visible
Whether the widget is visible.
Readable | Writeable
§width-request
Override for width request of the widget.
If this is -1, the natural request will be used.
Readable | Writeable
Accessible
§accessible-role
The accessible role of the given Accessible
implementation.
The accessible role cannot be changed once set.
Readable | Writeable
§Signals
§activate-default
Emitted whend the user activates the default widget.
This is a keybinding signal.
The default binding for this signal is Enter.
Action
§closed
Emitted when the popover is closed.
Widget
§destroy
Signals that all holders of a reference to the widget should release the reference that they hold.
May result in finalization of the widget if all references are released.
This signal is not suitable for saving widget state.
§direction-changed
Emitted when the text direction of a widget changes.
§hide
Emitted when @widget is hidden.
§keynav-failed
Emitted if keyboard navigation fails.
See WidgetExt::keynav_failed()
for details.
§map
Emitted when @widget is going to be mapped.
A widget is mapped when the widget is visible (which is controlled with
visible
) and all its parents up to the toplevel widget
are also visible.
The ::map signal can be used to determine whether a widget will be drawn,
for instance it can resume an animation that was stopped during the
emission of unmap
.
§mnemonic-activate
Emitted when a widget is activated via a mnemonic.
The default handler for this signal activates @widget if @group_cycling
is false
, or just makes @widget grab focus if @group_cycling is true
.
§move-focus
Emitted when the focus is moved.
The ::move-focus signal is a keybinding signal.
The default bindings for this signal are Tab to move forward, and Shift+Tab to move backward.
Action
§query-tooltip
Emitted when the widget’s tooltip is about to be shown.
This happens when the has-tooltip
property
is true
and the hover timeout has expired with the cursor hovering
“above” @widget; or emitted when @widget got focus in keyboard mode.
Using the given coordinates, the signal handler should determine
whether a tooltip should be shown for @widget. If this is the case
true
should be returned, false
otherwise. Note that if
@keyboard_mode is true
, the values of @x and @y are undefined and
should not be used.
The signal handler is free to manipulate @tooltip with the therefore destined function calls.
§realize
Emitted when @widget is associated with a gdk::Surface
.
This means that WidgetExt::realize()
has been called
or the widget has been mapped (that is, it is going to be drawn).
§show
Emitted when @widget is shown.
§state-flags-changed
Emitted when the widget state changes.
§unmap
Emitted when @widget is going to be unmapped.
A widget is unmapped when either it or any of its parents up to the toplevel widget have been set as hidden.
As ::unmap indicates that a widget will not be shown any longer, it can be used to, for example, stop an animation on the widget.
§unrealize
Emitted when the gdk::Surface
associated with @widget is destroyed.
This means that WidgetExt::unrealize()
has been called
or the widget has been unmapped (that is, it is going to be hidden).
§Implements
PopoverExt
, WidgetExt
, [trait@glib::ObjectExt
], AccessibleExt
, BuildableExt
, ConstraintTargetExt
, NativeExt
, ShortcutManagerExt
, WidgetExtManual
, AccessibleExtManual
GLib type: GObject with reference counted clone semantics.
Implementations§
Trait Implementations§
Source§impl HasParamSpec for Popover
impl HasParamSpec for Popover
Source§impl<T: PopoverImpl> IsSubclassable<T> for Popover
impl<T: PopoverImpl> IsSubclassable<T> for Popover
Source§fn class_init(class: &mut Class<Self>)
fn class_init(class: &mut Class<Self>)
Source§fn instance_init(instance: &mut InitializingObject<T>)
fn instance_init(instance: &mut InitializingObject<T>)
Source§impl Ord for Popover
impl Ord for Popover
Source§fn cmp(&self, other: &Self) -> Ordering
fn cmp(&self, other: &Self) -> Ordering
Comparison for two GObjects.
Compares the memory addresses of the provided objects.
1.21.0 · Source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Source§impl<OT: ObjectType> PartialEq<OT> for Popover
impl<OT: ObjectType> PartialEq<OT> for Popover
Source§impl<OT: ObjectType> PartialOrd<OT> for Popover
impl<OT: ObjectType> PartialOrd<OT> for Popover
Source§impl StaticType for Popover
impl StaticType for Popover
Source§fn static_type() -> Type
fn static_type() -> Type
Self
.impl Eq for Popover
impl IsA<Accessible> for Popover
impl IsA<Buildable> for Popover
impl IsA<ConstraintTarget> for Popover
impl IsA<Native> for Popover
impl IsA<Popover> for EmojiChooser
impl IsA<Popover> for PopoverMenu
impl IsA<ShortcutManager> for Popover
impl IsA<Widget> for Popover
Auto Trait Implementations§
impl Freeze for Popover
impl RefUnwindSafe for Popover
impl !Send for Popover
impl !Sync for Popover
impl Unpin for Popover
impl UnwindSafe for Popover
Blanket Implementations§
Source§impl<O> AccessibleExt for Owhere
O: IsA<Accessible>,
impl<O> AccessibleExt for Owhere
O: IsA<Accessible>,
Source§fn announce(&self, message: &str, priority: AccessibleAnnouncementPriority)
fn announce(&self, message: &str, priority: AccessibleAnnouncementPriority)
v4_14
only.Source§fn accessible_parent(&self) -> Option<Accessible>
fn accessible_parent(&self) -> Option<Accessible>
v4_10
only.Source§fn accessible_role(&self) -> AccessibleRole
fn accessible_role(&self) -> AccessibleRole
Source§fn at_context(&self) -> ATContext
fn at_context(&self) -> ATContext
v4_10
only.Accessible
. Read moreSource§fn bounds(&self) -> Option<(i32, i32, i32, i32)>
fn bounds(&self) -> Option<(i32, i32, i32, i32)>
v4_10
only.Source§fn first_accessible_child(&self) -> Option<Accessible>
fn first_accessible_child(&self) -> Option<Accessible>
v4_10
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fn next_accessible_sibling(&self) -> Option<Accessible>
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)
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Accessible
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Source§fn mnemonic_activate(&self, group_cycling: bool) -> bool
fn mnemonic_activate(&self, group_cycling: bool) -> bool
Source§fn observe_children(&self) -> ListModel
fn observe_children(&self) -> ListModel
GListModel
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fn observe_controllers(&self) -> ListModel
Source§fn pick(&self, x: f64, y: f64, flags: PickFlags) -> Option<Widget>
fn pick(&self, x: f64, y: f64, flags: PickFlags) -> Option<Widget>
Source§fn queue_allocate(&self)
fn queue_allocate(&self)
WidgetImpl::size_allocate()
function. Read moreSource§fn queue_draw(&self)
fn queue_draw(&self)
Source§fn queue_resize(&self)
fn queue_resize(&self)
Source§fn remove_controller(&self, controller: &impl IsA<EventController>)
fn remove_controller(&self, controller: &impl IsA<EventController>)
Source§fn remove_css_class(&self, css_class: &str)
fn remove_css_class(&self, css_class: &str)
Source§fn remove_mnemonic_label(&self, label: &impl IsA<Widget>)
fn remove_mnemonic_label(&self, label: &impl IsA<Widget>)
Source§fn set_can_focus(&self, can_focus: bool)
fn set_can_focus(&self, can_focus: bool)
Source§fn set_can_target(&self, can_target: bool)
fn set_can_target(&self, can_target: bool)
Source§fn set_child_visible(&self, child_visible: bool)
fn set_child_visible(&self, child_visible: bool)
Source§fn set_css_classes(&self, classes: &[&str])
fn set_css_classes(&self, classes: &[&str])
Source§fn set_cursor(&self, cursor: Option<&Cursor>)
fn set_cursor(&self, cursor: Option<&Cursor>)
Source§fn set_cursor_from_name(&self, name: Option<&str>)
fn set_cursor_from_name(&self, name: Option<&str>)
Source§fn set_direction(&self, dir: TextDirection)
fn set_direction(&self, dir: TextDirection)
Source§fn set_focus_child(&self, child: Option<&impl IsA<Widget>>)
fn set_focus_child(&self, child: Option<&impl IsA<Widget>>)
Source§fn set_focus_on_click(&self, focus_on_click: bool)
fn set_focus_on_click(&self, focus_on_click: bool)
Source§fn set_focusable(&self, focusable: bool)
fn set_focusable(&self, focusable: bool)
Source§fn set_font_map(&self, font_map: Option<&impl IsA<FontMap>>)
fn set_font_map(&self, font_map: Option<&impl IsA<FontMap>>)
Source§fn set_font_options(&self, options: Option<&FontOptions>)
fn set_font_options(&self, options: Option<&FontOptions>)
cairo::FontOptions
used for Pango rendering
in this widget. Read moreSource§fn set_halign(&self, align: Align)
fn set_halign(&self, align: Align)
Source§fn set_has_tooltip(&self, has_tooltip: bool)
fn set_has_tooltip(&self, has_tooltip: bool)
has-tooltip
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fn set_hexpand(&self, expand: bool)
Source§fn set_hexpand_set(&self, set: bool)
fn set_hexpand_set(&self, set: bool)
Source§fn set_layout_manager(&self, layout_manager: Option<impl IsA<LayoutManager>>)
fn set_layout_manager(&self, layout_manager: Option<impl IsA<LayoutManager>>)
Source§fn set_margin_bottom(&self, margin: i32)
fn set_margin_bottom(&self, margin: i32)
Source§fn set_margin_end(&self, margin: i32)
fn set_margin_end(&self, margin: i32)
Source§fn set_margin_start(&self, margin: i32)
fn set_margin_start(&self, margin: i32)
Source§fn set_margin_top(&self, margin: i32)
fn set_margin_top(&self, margin: i32)
Source§fn set_widget_name(&self, name: &str)
fn set_widget_name(&self, name: &str)
Source§fn set_opacity(&self, opacity: f64)
fn set_opacity(&self, opacity: f64)
Source§fn set_overflow(&self, overflow: Overflow)
fn set_overflow(&self, overflow: Overflow)
Source§fn set_parent(&self, parent: &impl IsA<Widget>)
fn set_parent(&self, parent: &impl IsA<Widget>)
Source§fn set_receives_default(&self, receives_default: bool)
fn set_receives_default(&self, receives_default: bool)
Source§fn set_sensitive(&self, sensitive: bool)
fn set_sensitive(&self, sensitive: bool)
Source§fn set_size_request(&self, width: i32, height: i32)
fn set_size_request(&self, width: i32, height: i32)
Source§fn set_state_flags(&self, flags: StateFlags, clear: bool)
fn set_state_flags(&self, flags: StateFlags, clear: bool)
Source§fn set_tooltip_markup(&self, markup: Option<&str>)
fn set_tooltip_markup(&self, markup: Option<&str>)
Source§fn set_tooltip_text(&self, text: Option<&str>)
fn set_tooltip_text(&self, text: Option<&str>)
Source§fn set_valign(&self, align: Align)
fn set_valign(&self, align: Align)
Source§fn set_vexpand(&self, expand: bool)
fn set_vexpand(&self, expand: bool)
Source§fn set_vexpand_set(&self, set: bool)
fn set_vexpand_set(&self, set: bool)
Source§fn set_visible(&self, visible: bool)
fn set_visible(&self, visible: bool)
Source§fn should_layout(&self) -> bool
fn should_layout(&self) -> bool
Source§fn size_allocate(&self, allocation: &Allocation, baseline: i32)
fn size_allocate(&self, allocation: &Allocation, baseline: i32)
Source§fn snapshot_child(
&self,
child: &impl IsA<Widget>,
snapshot: &impl IsA<Snapshot>,
)
fn snapshot_child( &self, child: &impl IsA<Widget>, snapshot: &impl IsA<Snapshot>, )
Source§fn translate_coordinates(
&self,
dest_widget: &impl IsA<Widget>,
src_x: f64,
src_y: f64,
) -> Option<(f64, f64)>
fn translate_coordinates( &self, dest_widget: &impl IsA<Widget>, src_x: f64, src_y: f64, ) -> Option<(f64, f64)>
Source§fn trigger_tooltip_query(&self)
fn trigger_tooltip_query(&self)
Source§fn unrealize(&self)
fn unrealize(&self)
Source§fn unset_state_flags(&self, flags: StateFlags)
fn unset_state_flags(&self, flags: StateFlags)
Source§fn height_request(&self) -> i32
fn height_request(&self) -> i32
Source§fn set_height_request(&self, height_request: i32)
fn set_height_request(&self, height_request: i32)
Source§fn width_request(&self) -> i32
fn width_request(&self) -> i32
Source§fn set_width_request(&self, width_request: i32)
fn set_width_request(&self, width_request: i32)
Source§fn connect_destroy<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
fn connect_destroy<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
Source§fn connect_direction_changed<F: Fn(&Self, TextDirection) + 'static>(
&self,
f: F,
) -> SignalHandlerId
fn connect_direction_changed<F: Fn(&Self, TextDirection) + 'static>( &self, f: F, ) -> SignalHandlerId
Source§fn connect_hide<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
fn connect_hide<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
Source§fn connect_map<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
fn connect_map<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
Source§fn connect_mnemonic_activate<F: Fn(&Self, bool) -> Propagation + 'static>(
&self,
f: F,
) -> SignalHandlerId
fn connect_mnemonic_activate<F: Fn(&Self, bool) -> Propagation + 'static>( &self, f: F, ) -> SignalHandlerId
Source§fn connect_move_focus<F: Fn(&Self, DirectionType) + 'static>(
&self,
f: F,
) -> SignalHandlerId
fn connect_move_focus<F: Fn(&Self, DirectionType) + 'static>( &self, f: F, ) -> SignalHandlerId
fn emit_move_focus(&self, direction: DirectionType)
Source§fn connect_query_tooltip<F: Fn(&Self, i32, i32, bool, &Tooltip) -> bool + 'static>(
&self,
f: F,
) -> SignalHandlerId
fn connect_query_tooltip<F: Fn(&Self, i32, i32, bool, &Tooltip) -> bool + 'static>( &self, f: F, ) -> SignalHandlerId
Source§fn connect_realize<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
fn connect_realize<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
gdk::Surface
. Read moreSource§fn connect_show<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
fn connect_show<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
Source§fn connect_state_flags_changed<F: Fn(&Self, StateFlags) + 'static>(
&self,
f: F,
) -> SignalHandlerId
fn connect_state_flags_changed<F: Fn(&Self, StateFlags) + 'static>( &self, f: F, ) -> SignalHandlerId
Source§fn connect_unmap<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
fn connect_unmap<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
Source§fn connect_unrealize<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
fn connect_unrealize<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId
gdk::Surface
associated with @widget is destroyed. Read more