Handy.HeaderGroup
Description: Reference for Handy.HeaderGroup

### Class

# HandyHeaderGroup

#### Description [src]

    final class Handy.HeaderGroup : GObject.Object {
      /* No available fields */
    }

An object handling composite title bars.

The `HdyHeaderGroup` object handles the header bars of a composite title bar. It splits the window decoration across the header bars, giving the left side of the decorations to the leftmost header bar, and the right side of the decorations to the rightmost header bar. See `hdy_header_bar_set_decoration_layout()`.

The `HdyHeaderGroup:decorate-all` property can be used in conjunction with `HdyLeaflet:folded` when the title bar is split across the pages of a `HdyLeaflet` to automatically display the decorations on all the pages when the leaflet is folded.

You can nest header groups, which is convenient when you nest leaflets too:

    <object class="HdyHeaderGroup" id="inner_header_group">
      <property name="decorate-all" bind-source="inner_leaflet" bind-property="folded" bind-flags="sync-create"/>
      <headerbars>
        <headerbar name="inner_header_bar_1"/>
        <headerbar name="inner_header_bar_2"/>
      </headerbars>
    </object>
    <object class="HdyHeaderGroup" id="outer_header_group">
      <property name="decorate-all" bind-source="outer_leaflet" bind-property="folded" bind-flags="sync-create"/>
      <headerbars>
        <headerbar name="inner_header_group"/>
        <headerbar name="outer_header_bar"/>
      </headerbars>
    </object>

Available since: | 1.0

#### Ancestors

- GObject

#### Implements

- GtkBuildable

#### Constructors

###### hdy_header_group_new

Creates a new `HdyHeaderGroup`.

Available since: 1.0

#### Instance methods

###### hdy_header_group_add_gtk_header_bar

Adds `header_bar` to `self`.

Available since: 1.0

###### hdy_header_group_add_header_bar

Adds `header_bar` to `self`.

Available since: 1.0

###### hdy_header_group_add_header_group

Adds `header_group` to `self`.

Available since: 1.0

###### hdy_header_group_get_children

Returns the list of children associated with `self`.

Available since: 1.0

###### hdy_header_group_get_decorate_all

Gets whether the elements of the group should all receive the full decoration.

Available since: 1.0

###### hdy_header_group_remove_child

Removes `child` from `self`.

Available since: 1.0

###### hdy_header_group_remove_gtk_header_bar

Removes `header_bar` from `self`.

Available since: 1.0

###### hdy_header_group_remove_header_bar

Removes `header_bar` from `self`.

Available since: 1.0

###### hdy_header_group_remove_header_group

Removes a nested `HdyHeaderGroup` from `self`.

Available since: 1.0

###### hdy_header_group_set_decorate_all

Sets whether the elements of the group should all receive the full decoration.

Available since: 1.0

#### Properties

###### Handy.HeaderGroup:decorate-all

Whether the elements of the group should all receive the full decoration.

Available since: 1.0

#### Signals

###### Handy.HeaderGroup::update-decoration-layouts

This signal is emitted before updating the decoration layouts.

Available since: 1.0

#### Class structure

    struct HandyHeaderGroupClass {
      GObjectClass parent_class;

    }

###### Class members

`parent_class` |
    GObjectClass
| No description available.