ViewSwitcher

class ViewSwitcher(**properties: Any)

Superclasses: Widget, InitiallyUnowned, Object

Implemented Interfaces: Accessible, Buildable, ConstraintTarget

An adaptive view switcher.

An adaptive view switcher designed to switch between multiple views contained in a ViewStack in a similar fashion to StackSwitcher.

AdwViewSwitcher buttons always have an icon and a label. They can be displayed side by side, or icon on top of the label. This can be controlled via the policy property.

AdwViewSwitcher is intended to be used in a header bar together with ViewSwitcherBar at the bottom of the window, and a Breakpoint showing the view switcher bar on narrow sizes, while removing the view switcher from the header bar, as follows:

<object class="AdwWindow">
  <child>
    <object class="AdwBreakpoint">
      <condition>max-width: 550sp</condition>
      <setter object="switcher_bar" property="reveal">True</setter>
      <setter object="header_bar" property="title-widget"/>
    </object>
  </child>
  <property name="content">
    <object class="AdwToolbarView">
      <child type="top">
        <object class="AdwHeaderBar" id="header_bar">
          <property name="title-widget">
            <object class="AdwViewSwitcher">
              <property name="stack">stack</property>
              <property name="policy">wide</property>
            </object>
          </property>
        </object>
      </child>
      <property name="content">
        <object class="AdwViewStack" id="stack"/>
      </property>
      <child type="bottom">
        <object class="AdwViewSwitcherBar" id="switcher_bar">
          <property name="stack">stack</property>
        </object>
      </child>
    </object>
  </property>
</object>

It’s recommended to set policy to ADW_VIEW_SWITCHER_POLICY_WIDE in this case.

You may have to adjust the breakpoint condition for your specific pages.

CSS nodes

AdwViewSwitcher has a single CSS node with name viewswitcher. It can have the style classes .wide and .narrow, matching its policy.

Accessibility

AdwViewSwitcher uses the GTK_ACCESSIBLE_ROLE_TAB_LIST role and uses the GTK_ACCESSIBLE_ROLE_TAB for its buttons.

Constructors

class ViewSwitcher

classmethod new() → Widget

Creates a new AdwViewSwitcher.

Methods

class ViewSwitcher

get_policy() → ViewSwitcherPolicy

Gets the policy of self.

get_stack() → ViewStack | None

Gets the stack controlled by self.

set_policy(policy: ViewSwitcherPolicy) → None

Sets the policy of self.

Parameters:

policy – the new policy

set_stack(stack: ViewStack | None = None) → None

Sets the stack controlled by self.

Parameters:

stack – a stack

Properties

class ViewSwitcher

props.policy: ViewSwitcherPolicy

The type of the None singleton.

props.stack: ViewStack

The type of the None singleton.