Popover

open class Popover : Widget, PopoverProtocol

GtkPopover is a bubble-like context popup.

An example GtkPopover

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 [methodGtk.Popover.set_pointing_to].

The position of a popover relative to the widget it is attached to can also be changed with [methodGtk.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, [methodGtk.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 [classGtk.PopoverMenu] subclass which supports being populated from a GMenuModel with [ctorGtk.PopoverMenu.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>

CSS nodes

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

The contents child node always gets the .background style class and the popover itself gets the .menu style class if the popover is menu-like (i.e. 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.

The Popover type acts as a reference-counted owner of an underlying GtkPopover instance. It provides the methods that can operate on this data type through PopoverProtocol conformance. Use Popover as a strong reference or owner of a GtkPopover instance.

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  • Designated initialiser from the underlying `C` data type.

    This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the Popover instance.

    Declaration

    Swift

    @inlinable
public init(_ op: UnsafeMutablePointer<GtkPopover>)

    Parameters

    op

    pointer to the underlying object
    Show on GitHub

  • Designated initialiser from a constant pointer to the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the Popover instance.

    Declaration

    Swift

    @inlinable
public init(_ op: UnsafePointer<GtkPopover>)

    Parameters

    op

    pointer to the underlying object
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  • Optional initialiser from a non-mutating gpointer to the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the Popover instance.

    Declaration

    Swift

    @inlinable
override public init!(gpointer op: gpointer?)

    Parameters

    op

    gpointer to the underlying object
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  • Optional initialiser from a non-mutating gconstpointer to the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the Popover instance.

    Declaration

    Swift

    @inlinable
override public init!(gconstpointer op: gconstpointer?)

    Parameters

    op

    pointer to the underlying object
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  • Optional initialiser from a constant pointer to the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the Popover instance.

    Declaration

    Swift

    @inlinable
public init!(_ op: UnsafePointer<GtkPopover>?)

    Parameters

    op

    pointer to the underlying object
    Show on GitHub

  • Optional initialiser from the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the Popover instance.

    Declaration

    Swift

    @inlinable
public init!(_ op: UnsafeMutablePointer<GtkPopover>?)

    Parameters

    op

    pointer to the underlying object
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  • Designated initialiser from the underlying C data type. Will retain GtkPopover. i.e., ownership is transferred to the Popover instance.

    Declaration

    Swift

    @inlinable
public init(retaining op: UnsafeMutablePointer<GtkPopover>)

    Parameters

    op

    pointer to the underlying object
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  • Reference intialiser for a related type that implements PopoverProtocol Will retain GtkPopover.

    Declaration

    Swift

    @inlinable
public init<T>(popover other: T) where T : PopoverProtocol

    Parameters

    other

    an instance of a related type that implements PopoverProtocol
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  • Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to PopoverProtocol.

    Declaration

    Swift

    @inlinable
override public init<T>(cPointer p: UnsafeMutablePointer<T>)

    Parameters

    cPointer

    pointer to the underlying object
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  • Unsafe typed, retaining initialiser. Do not use unless you know the underlying data type the pointer points to conforms to PopoverProtocol.

    Declaration

    Swift

    @inlinable
override public init<T>(retainingCPointer cPointer: UnsafeMutablePointer<T>)

    Parameters

    cPointer

    pointer to the underlying object
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  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to PopoverProtocol.

    Declaration

    Swift

    @inlinable
override public init(raw p: UnsafeRawPointer)

    Parameters

    p

    raw pointer to the underlying object
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  • Unsafe untyped, retaining initialiser. Do not use unless you know the underlying data type the pointer points to conforms to PopoverProtocol.

    Declaration

    Swift

    @inlinable
override public init(retainingRaw raw: UnsafeRawPointer)
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  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to PopoverProtocol.

    Declaration

    Swift

    @inlinable
public required init(raw p: UnsafeMutableRawPointer)

    Parameters

    p

    mutable raw pointer to the underlying object
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  • Unsafe untyped, retaining initialiser. Do not use unless you know the underlying data type the pointer points to conforms to PopoverProtocol.

    Declaration

    Swift

    @inlinable
required public init(retainingRaw raw: UnsafeMutableRawPointer)

    Parameters

    raw

    mutable raw pointer to the underlying object
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  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to PopoverProtocol.

    Declaration

    Swift

    @inlinable
override public init(opaquePointer p: OpaquePointer)

    Parameters

    p

    opaque pointer to the underlying object
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  • Unsafe untyped, retaining initialiser. Do not use unless you know the underlying data type the pointer points to conforms to PopoverProtocol.

    Declaration

    Swift

    @inlinable
override public init(retainingOpaquePointer p: OpaquePointer)

    Parameters

    p

    opaque pointer to the underlying object
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  • Creates a new GtkPopover.

    Declaration

    Swift

    @inlinable
public init()
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