Gtk.Popover
Description: Reference for Gtk.Popover

### Class

# GtkPopover

#### Description [src]

    class Gtk.Popover : Gtk.Widget
      implements Gtk.Accessible, Gtk.Buildable, Gtk.ConstraintTarget, Gtk.Native, Gtk.ShortcutManager {
      /* No available fields */
    }

`GtkPopover` 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 `gtk_popover_set_pointing_to()`.

The position of a popover relative to the widget it is attached to can also be changed with `gtk_popover_set_position()`

By default, `GtkPopover` 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, `gtk_popover_set_autohide()` may be called on it to tweak its behavior.

## GtkPopover as menu replacement

`GtkPopover` is often used to replace menus. The best was to do this is to use the `GtkPopoverMenu` subclass which supports being populated from a `GMenuModel` with `gtk_popover_menu_new_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

`GtkPopover` supports the following keyboard shortcuts:

- `Escape` closes the popover.
- `Alt` makes the mnemonics visible.

The following signals have default keybindings:

- `GtkPopover::activate-default`

# CSS nodes

    popover.background[.menu]
    ├── arrow
    ╰── contents
        ╰── <child>

`GtkPopover` 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 `GtkPopoverMenu`.

Particular uses of `GtkPopover`, such as touch selection popups or magnifiers in `GtkEntry` or `GtkTextView` 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, `GtkPopover` 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.

#### Hierarchy

#### Ancestors

- GtkWidget
- GInitiallyUnowned
- GObject

#### Descendants

- GtkEmojiChooser
- GtkPopoverMenu

#### Implements

- GtkAccessible
- GtkBuildable
- GtkConstraintTarget
- GtkNative
- GtkShortcutManager

#### Constructors

###### gtk_popover_new

Creates a new `GtkPopover`.

#### Instance methods

###### gtk_popover_get_autohide

Returns whether the popover is modal.

###### gtk_popover_get_cascade_popdown

Returns whether the popover will close after a modal child is closed.

###### gtk_popover_get_child

Gets the child widget of `popover`.

###### gtk_popover_get_has_arrow

Gets whether this popover is showing an arrow pointing at the widget that it is relative to.

###### gtk_popover_get_mnemonics_visible

Gets whether mnemonics are visible.

###### gtk_popover_get_offset

Gets the offset previous set with [method@Gtk.Popover.set_offset()].

###### gtk_popover_get_pointing_to

Gets the rectangle that the popover points to.

###### gtk_popover_get_position

Returns the preferred position of `popover`.

###### gtk_popover_popdown

Pops `popover` down.

###### gtk_popover_popup

Pops `popover` up.

###### gtk_popover_present

Allocate a size for the `GtkPopover`.

###### gtk_popover_set_autohide

Sets whether `popover` is modal.

###### gtk_popover_set_cascade_popdown

If `cascade_popdown` is `TRUE`, the popover will be closed when a child modal popover is closed.

###### gtk_popover_set_child

Sets the child widget of `popover`.

###### gtk_popover_set_default_widget

Sets the default widget of a `GtkPopover`.

###### gtk_popover_set_has_arrow

Sets whether this popover should draw an arrow pointing at the widget it is relative to.

###### gtk_popover_set_mnemonics_visible

Sets whether mnemonics should be visible.

###### gtk_popover_set_offset

Sets the offset to use when calculating the position of the popover.

###### gtk_popover_set_pointing_to

Sets the rectangle that `popover` points to.

###### gtk_popover_set_position

Sets the preferred position for `popover` to appear.

##### Methods inherited from GtkWidget (162)

Please see GtkWidget for a full list of methods.

##### Methods inherited from GObject (43)

Please see GObject for a full list of methods.

##### Methods inherited from GtkAccessible (19)

###### gtk_accessible_announce

Requests the user’s screen reader to announce the given message.

since: 4.14

###### gtk_accessible_get_accessible_parent

Retrieves the accessible parent for an accessible object.

since: 4.10

###### gtk_accessible_get_accessible_role

Retrieves the accessible role of an accessible object.

###### gtk_accessible_get_at_context

Retrieves the accessible implementation for the given `GtkAccessible`.

since: 4.10

###### gtk_accessible_get_bounds

Queries the coordinates and dimensions of this accessible.

since: 4.10

###### gtk_accessible_get_first_accessible_child

Retrieves the first accessible child of an accessible object.

since: 4.10

###### gtk_accessible_get_next_accessible_sibling

Retrieves the next accessible sibling of an accessible object.

since: 4.10

###### gtk_accessible_get_platform_state

Query a platform state, such as focus.

since: 4.10

###### gtk_accessible_reset_property

Resets the accessible `property` to its default value.

###### gtk_accessible_reset_relation

Resets the accessible `relation` to its default value.

###### gtk_accessible_reset_state

Resets the accessible `state` to its default value.

###### gtk_accessible_set_accessible_parent

Sets the parent and sibling of an accessible object.

since: 4.10

###### gtk_accessible_update_next_accessible_sibling

Updates the next accessible sibling of `self`.

since: 4.10

###### gtk_accessible_update_property

Updates a list of accessible properties.

###### gtk_accessible_update_property_value

Updates an array of accessible properties.

###### gtk_accessible_update_relation

Updates a list of accessible relations.

###### gtk_accessible_update_relation_value

Updates an array of accessible relations.

###### gtk_accessible_update_state

Updates a list of accessible states. See the `GtkAccessibleState` documentation for the value types of accessible states.

###### gtk_accessible_update_state_value

Updates an array of accessible states.

##### Methods inherited from GtkBuildable (1)

###### gtk_buildable_get_buildable_id

Gets the ID of the `buildable` object.

##### Methods inherited from GtkNative (5)

###### gtk_native_get_renderer

Returns the renderer that is used for this `GtkNative`.

###### gtk_native_get_surface

Returns the surface of this `GtkNative`.

###### gtk_native_get_surface_transform

Retrieves the surface transform of `self`.

###### gtk_native_realize

Realizes a `GtkNative`.

###### gtk_native_unrealize

Unrealizes a `GtkNative`.

#### Properties

###### Gtk.Popover:autohide

Whether to dismiss the popover on outside clicks.

###### Gtk.Popover:cascade-popdown

Whether the popover pops down after a child popover.

###### Gtk.Popover:child

The child widget.

###### Gtk.Popover:default-widget

The default widget inside the popover.

###### Gtk.Popover:has-arrow

Whether to draw an arrow.

###### Gtk.Popover:mnemonics-visible

Whether mnemonics are currently visible in this popover.

###### Gtk.Popover:pointing-to

Rectangle in the parent widget that the popover points to.

###### Gtk.Popover:position

How to place the popover, relative to its parent.

##### Properties inherited from GtkWidget (34)

###### Gtk.Widget:can-focus

Whether the widget or any of its descendents can accept the input focus.

###### Gtk.Widget:can-target

Whether the widget can receive pointer events.

###### Gtk.Widget:css-classes

A list of css classes applied to this widget.

###### Gtk.Widget:css-name

The name of this widget in the CSS tree.

###### Gtk.Widget:cursor

The cursor used by `widget`.

###### Gtk.Widget:focus-on-click

Whether the widget should grab focus when it is clicked with the mouse.

###### Gtk.Widget:focusable

Whether this widget itself will accept the input focus.

###### Gtk.Widget:halign

How to distribute horizontal space if widget gets extra space.

###### Gtk.Widget:has-default

Whether the widget is the default widget.

###### Gtk.Widget:has-focus

Whether the widget has the input focus.

###### Gtk.Widget:has-tooltip

Enables or disables the emission of the ::query-tooltip signal on `widget`.

###### Gtk.Widget:height-request

Override for height request of the widget.

###### Gtk.Widget:hexpand

Whether to expand horizontally.

###### Gtk.Widget:hexpand-set

Whether to use the `hexpand` property.

###### Gtk.Widget:layout-manager

The `GtkLayoutManager` instance to use to compute the preferred size of the widget, and allocate its children.

###### Gtk.Widget:margin-bottom

Margin on bottom side of widget.

###### Gtk.Widget:margin-end

Margin on end of widget, horizontally.

###### Gtk.Widget:margin-start

Margin on start of widget, horizontally.

###### Gtk.Widget:margin-top

Margin on top side of widget.

###### Gtk.Widget:name

The name of the widget.

###### Gtk.Widget:opacity

The requested opacity of the widget.

###### Gtk.Widget:overflow

How content outside the widget’s content area is treated.

###### Gtk.Widget:parent

The parent widget of this widget.

###### Gtk.Widget:receives-default

Whether the widget will receive the default action when it is focused.

###### Gtk.Widget:root

The `GtkRoot` widget of the widget tree containing this widget.

###### Gtk.Widget:scale-factor

The scale factor of the widget.

###### Gtk.Widget:sensitive

Whether the widget responds to input.

###### Gtk.Widget:tooltip-markup

Sets the text of tooltip to be the given string, which is marked up with Pango markup.

###### Gtk.Widget:tooltip-text

Sets the text of tooltip to be the given string.

###### Gtk.Widget:valign

How to distribute vertical space if widget gets extra space.

###### Gtk.Widget:vexpand

Whether to expand vertically.

###### Gtk.Widget:vexpand-set

Whether to use the `vexpand` property.

###### Gtk.Widget:visible

Whether the widget is visible.

###### Gtk.Widget:width-request

Override for width request of the widget.

##### Properties inherited from GtkAccessible (1)

###### GtkAccessible:accessible-role

The accessible role of the given `GtkAccessible` implementation.

#### Signals

###### Gtk.Popover::activate-default

Emitted whend the user activates the default widget.

###### Gtk.Popover::closed

Emitted when the popover is closed.

##### Signals inherited from GtkWidget (13)

###### GtkWidget::destroy

Signals that all holders of a reference to the widget should release the reference that they hold.

###### GtkWidget::direction-changed

Emitted when the text direction of a widget changes.

###### GtkWidget::hide

Emitted when `widget` is hidden.

###### GtkWidget::keynav-failed

Emitted if keyboard navigation fails.

###### GtkWidget::map

Emitted when `widget` is going to be mapped.

###### GtkWidget::mnemonic-activate

Emitted when a widget is activated via a mnemonic.

###### GtkWidget::move-focus

Emitted when the focus is moved.

###### GtkWidget::query-tooltip

Emitted when the widget’s tooltip is about to be shown.

###### GtkWidget::realize

Emitted when `widget` is associated with a `GdkSurface`.

###### GtkWidget::show

Emitted when `widget` is shown.

###### GtkWidget::state-flags-changed

Emitted when the widget state changes.

###### GtkWidget::unmap

Emitted when `widget` is going to be unmapped.

###### GtkWidget::unrealize

Emitted when the `GdkSurface` associated with `widget` is destroyed.

##### Signals inherited from GObject (1)

###### GObject::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

#### Class structure

    struct GtkPopoverClass {
      GtkWidgetClass parent_class;
      void (* closed) (
        GtkPopover* popover
      );
      void (* activate_default) (
        GtkPopover* popover
      );

    }

No description available.

###### Class members

`parent_class: GtkWidgetClass`

  No description available.

`closed: void (* closed) ( GtkPopover* popover )`

  No description available.

`activate_default: void (* activate_default) ( GtkPopover* popover )`

  No description available.

#### Virtual methods

###### Gtk.PopoverClass.activate_default

No description available.

###### Gtk.PopoverClass.closed

No description available.