ClapperGtk.TitleHeader
Description: Reference for ClapperGtk.TitleHeader

### Class

# ClapperGtkTitleHeader

#### Description [src]

    final class ClapperGtk.TitleHeader : ClapperGtk.LeadContainer
      implements Gtk.Accessible, Gtk.Buildable, Gtk.ConstraintTarget {
      /* No available fields */
    }

A header panel widget that displays current media title.

`ClapperGtkTitleHeader` is a simple, ready to be used header widget that displays current media title. It can be placed as-is as a `ClapperGtkVideo` overlay (either fading or not).

If you need a further customized header, you can use `ClapperGtkTitleLabel` which is used by this widget to build your own implementation instead.

#### Hierarchy

#### Ancestors

- ClapperGtkLeadContainer
- ClapperGtkContainer
- GtkWidget
- GInitiallyUnowned
- GObject

#### Implements

- GtkAccessible
- GtkBuildable
- GtkConstraintTarget

#### Constructors

###### clapper_gtk_title_header_new

Creates a new `ClapperGtkTitleHeader` instance.

#### Instance methods

###### clapper_gtk_title_header_get_current_title

Get currently displayed title by `header`.

###### clapper_gtk_title_header_get_fallback_to_uri

Get whether a `ClapperMediaItem:uri` property is going be displayed as a header text when no other title could be determined.

###### clapper_gtk_title_header_set_fallback_to_uri

Set whether a `ClapperMediaItem:uri` property should be displayed as a header text when no other title could be determined.

##### Methods inherited from ClapperGtkLeadContainer (4)

###### clapper_gtk_lead_container_get_blocked_actions

Get `actions` that were set for this `lead_container` to block.

###### clapper_gtk_lead_container_get_leading

Get a whenever `lead_container` has leadership set.

###### clapper_gtk_lead_container_set_blocked_actions

Set `actions` that `ClapperGtkVideo` should skip when `GdkEvent` which would normally trigger them happens inside `lead_container`.

###### clapper_gtk_lead_container_set_leading

Set if `lead_container` leadership should be enabled.

##### Methods inherited from ClapperGtkContainer (10)

###### clapper_gtk_container_get_adaptive_height

Get a `container` adaptive height threshold.

###### clapper_gtk_container_get_adaptive_width

Get a `container` adaptive width threshold.

###### clapper_gtk_container_get_child

Get a child `GtkWidget` of `container`.

###### clapper_gtk_container_get_height_target

Get a `container` height target.

###### clapper_gtk_container_get_width_target

Get a `container` width target.

###### clapper_gtk_container_set_adaptive_height

Set an adaptive height threshold. When widget is resized to value or lower, an `ClapperGtkContainer::adapt` signal will be emitted with `TRUE` to notify implementation about mobile adaptation request, otherwise `FALSE` when both threshold values are exceeded.

###### clapper_gtk_container_set_adaptive_width

Set an adaptive width threshold. When widget is resized to value or lower, an `ClapperGtkContainer::adapt` signal will be emitted with `TRUE` to notify implementation about mobile adaptation request, otherwise `FALSE` when both threshold values are exceeded.

###### clapper_gtk_container_set_child

Set a child `GtkWidget` of `container`.

###### clapper_gtk_container_set_height_target

Same as `clapper_gtk_container_set_width_target()` but for widget height.

###### clapper_gtk_container_set_width_target

Set a width that `container` should target. When set container will not stretch beyond set `width` while still expanding into possible boundaries trying to reach its target.

##### Methods inherited from GtkWidget (164)

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 (21)

###### gtk_accessible_announce

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

###### gtk_accessible_get_accessible_id

Retrieves the accessible identifier for the accessible object.

###### gtk_accessible_get_accessible_parent

Retrieves the accessible parent for an accessible object.

###### gtk_accessible_get_accessible_role

Retrieves the accessible role of an accessible object.

###### gtk_accessible_get_at_context

Retrieves the implementation for the given accessible object.

###### gtk_accessible_get_bounds

Queries the coordinates and dimensions of this accessible.

###### gtk_accessible_get_first_accessible_child

Retrieves the first accessible child of an accessible object.

###### gtk_accessible_get_next_accessible_sibling

Retrieves the next accessible sibling of an accessible object.

###### gtk_accessible_get_platform_state

Queries a platform state, such as focus.

###### 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.

###### gtk_accessible_update_next_accessible_sibling

Updates the next accessible sibling.

###### gtk_accessible_update_platform_state

Informs ATs that the platform state has changed.

###### 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.

###### 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.

#### Properties

###### ClapperGtk.TitleHeader:current-title

Currently displayed title.

###### ClapperGtk.TitleHeader:fallback-to-uri

When title cannot be determined, show URI instead.

##### Properties inherited from ClapperGtkLeadContainer (2)

###### ClapperGtk.LeadContainer:blocked-actions

Mask of actions that container blocks from being triggered on video.

###### ClapperGtk.LeadContainer:leading

Width that container should target.

##### Properties inherited from ClapperGtkContainer (4)

###### ClapperGtk.Container:adaptive-height

Adaptive height threshold that triggers `ClapperGtkContainer::adapt` signal.

###### ClapperGtk.Container:adaptive-width

Adaptive width threshold that triggers `ClapperGtkContainer::adapt` signal.

###### ClapperGtk.Container:height-target

Height that container should target.

###### ClapperGtk.Container:width-target

Width that container should target.

##### Properties inherited from GtkWidget (35)

###### 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 `GtkWidget::query-tooltip` signal on `widget`.

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

Overrides 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:limit-events

Makes this widget act like a modal dialog, with respect to event delivery.

###### 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

Overrides for width request of the widget.

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

###### Gtk.Accessible:accessible-role

The accessible role of the given `GtkAccessible` implementation.

#### Signals

##### Signals inherited from ClapperGtkContainer (1)

###### ClapperGtkContainer::adapt

A helper signal for implementing mobile/narrow adaptive behavior on descendants.

##### 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 ClapperGtkTitleHeaderClass {
      ClapperGtkLeadContainerClass parent_class;

    }

No description available.

###### Class members

`parent_class: ClapperGtkLeadContainerClass`

  No description available.