Struct TabOverview 

pub struct TabOverview { /* private fields */ }

Available on crate feature v1_3 only.

A tab overview for TabView.

TabOverview is a widget that can display tabs from an TabView in a grid.

TabOverview shows a thumbnail for each tab. By default thumbnails are static for all pages except the selected one. They can be made always live by setting live-thumbnail to TRUE, or refreshed with TabPage::invalidate_thumbnail() or TabView::invalidate_thumbnails() otherwise.

If the pages are too tall or too wide, the thumbnails will be cropped; use thumbnail-xalign and thumbnail-yalign to control which part of the page should be visible in this case.

Pinned tabs are shown as smaller cards without thumbnails above the other tabs. Unlike in TabBar, they still have titles, as well as an unpin button.

TabOverview provides search in open tabs. It searches in tab titles and tooltips, as well as keyword.

If enable-new-tab is set to TRUE, a new tab button will be shown. Connect to the create-tab signal to use it.

secondary-menu can be used to provide a secondary menu for the overview. Use it to add extra actions, e.g. to open a new window or undo closed tab.

TabOverview is intended to be used as the direct child of the window, with the rest of the window contents set as the child. The child is expected to contain an TabView.

TabOverview shows window buttons by default. They can be disabled by setting show-start-title-buttons and/or show-start-title-buttons and/or show-end-title-buttons to FALSE.

If search and window buttons are disabled, and secondary menu is not set, the header bar will be hidden.

Drag-and-Drop

TabOverview thumbnails can have an additional drop target for arbitrary content.

Use setup_extra_drop_target() to set it up, specifying the supported content types and drag actions, then connect to extra-drag-drop to handle a drop.

In some cases, it may be necessary to determine the used action based on the content. In that case, set extra-drag-preload to TRUE and connect to extra-drag-value signal, then return the action from its handler. To access this action from the extra-drag-drop handler, use the extra-drag-preferred-action property.

extra-drag-value is also always emitted when starting to hover an item, with a NULL value. This happens even when extra-drag-preload is FALSE.

Actions

TabOverview defines the overview.open and overview.close actions for opening and closing itself. They can be convenient when used together with TabButton.

CSS nodes

TabOverview has a single CSS node with name taboverview.

Properties

child

The child widget.

Readable | Writeable

enable-new-tab

Whether to enable new tab button.

Connect to the create-tab signal to use it.

Readable | Writeable

enable-search

Whether to enable search in tabs.

Search matches tab titles and tooltips, as well as keywords, set via keyword. Use keywords to search in e.g. page URLs in a web browser.

During search, tab reordering and drag-n-drop are disabled.

Use search-active to check out if search is currently active.

Readable | Writeable

extra-drag-preferred-action

The current drag action during a drop.

This property should only be used from inside a extra-drag-drop handler.

The action will be a subset of what was originally passed to TabOverview::setup_extra_drop_target().

Readable

extra-drag-preload

Whether the drop data should be preloaded on hover.

See [preload][struct@crate::Gtk::DropTarget#preload].

Readable | Writeable

inverted

Whether thumbnails use inverted layout.

If set to TRUE, thumbnails will have the close or unpin buttons at the beginning and the indicator at the end rather than the other way around.

Readable | Writeable

open

Whether the overview is open.

Readable | Writeable

search-active

Whether search is currently active.

See enable-search.

Readable

secondary-menu

The secondary menu model.

Use it to add extra actions, e.g. to open a new window or undo closed tab.

Readable | Writeable

show-end-title-buttons

Whether to show end title buttons in the overview’s header bar.

See show-start-title-buttons for the other side.

Readable | Writeable

show-start-title-buttons

Whether to show start title buttons in the overview’s header bar.

See show-end-title-buttons for the other side.

Readable | Writeable

view

The tab view the overview controls.

The view must be inside the tab overview, see child.

Readable | Writeable

Widget

can-focus

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

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable

can-target

Whether the widget can receive pointer events.

Readable | Writeable

css-classes

A list of css classes applied to this widget.

Readable | Writeable

css-name

The name of this widget in the CSS tree.

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable | Construct Only

cursor

The cursor used by @widget.

Readable | Writeable

focus-on-click

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

This property is only relevant for widgets that can take focus.

Readable | Writeable

focusable

Whether this widget itself will accept the input focus.

Readable | Writeable

halign

How to distribute horizontal space if widget gets extra space.

Readable | Writeable

has-default

Whether the widget is the default widget.

Readable

has-focus

Whether the widget has the input focus.

Readable

has-tooltip

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

A true value indicates that @widget can have a tooltip, in this case the widget will be queried using query-tooltip to determine whether it will provide a tooltip or not.

Readable | Writeable

height-request

Overrides for height request of the widget.

If this is -1, the natural request will be used.

Readable | Writeable

hexpand

Whether to expand horizontally.

Readable | Writeable

hexpand-set

Whether to use the hexpand property.

Readable | Writeable

layout-manager

The gtk::LayoutManager instance to use to compute the preferred size of the widget, and allocate its children.

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable

limit-events

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

Global event controllers will not handle events with targets inside the widget, unless they are set up to ignore propagation limits. See Gtk::EventController::set_propagation_limit().

Readable | Writeable

margin-bottom

Margin on bottom side of widget.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from [WidgetExtManual::set_size_request()][crate::gtk::prelude::WidgetExtManual::set_size_request()] for example.

Readable | Writeable

margin-end

Margin on end of widget, horizontally.

This property supports left-to-right and right-to-left text directions.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from [WidgetExtManual::set_size_request()][crate::gtk::prelude::WidgetExtManual::set_size_request()] for example.

Readable | Writeable

margin-start

Margin on start of widget, horizontally.

This property supports left-to-right and right-to-left text directions.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from [WidgetExtManual::set_size_request()][crate::gtk::prelude::WidgetExtManual::set_size_request()] for example.

Readable | Writeable

margin-top

Margin on top side of widget.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from [WidgetExtManual::set_size_request()][crate::gtk::prelude::WidgetExtManual::set_size_request()] for example.

Readable | Writeable

name

The name of the widget.

Readable | Writeable

opacity

The requested opacity of the widget.

Readable | Writeable

overflow

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

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable

parent

The parent widget of this widget.

Readable

receives-default

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

Readable | Writeable

root

The gtk::Root widget of the widget tree containing this widget.

This will be NULL if the widget is not contained in a root widget.

Readable

scale-factor

The scale factor of the widget.

Readable

sensitive

Whether the widget responds to input.

Readable | Writeable

tooltip-markup

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

Also see Gtk::Tooltip::set_markup().

This is a convenience property which will take care of getting the tooltip shown if the given string is not NULL: has-tooltip will automatically be set to true and there will be taken care of query-tooltip in the default signal handler.

Note that if both tooltip-text and tooltip-markup are set, the last one wins.

Readable | Writeable

tooltip-text

Sets the text of tooltip to be the given string.

Also see Gtk::Tooltip::set_text().

This is a convenience property which will take care of getting the tooltip shown if the given string is not NULL: has-tooltip will automatically be set to true and there will be taken care of query-tooltip in the default signal handler.

Note that if both tooltip-text and tooltip-markup are set, the last one wins.

Readable | Writeable

valign

How to distribute vertical space if widget gets extra space.

Readable | Writeable

vexpand

Whether to expand vertically.

Readable | Writeable

vexpand-set

Whether to use the vexpand property.

Readable | Writeable

visible

Whether the widget is visible.

Readable | Writeable

width-request

Overrides for width request of the widget.

If this is -1, the natural request will be used.

Readable | Writeable

Accessible

accessible-role

The accessible role of the given gtk::Accessible implementation.

The accessible role cannot be changed once set.

Readable | Writeable

Signals

create-tab

Emitted when a tab needs to be created.

This can happen after the new tab button has been pressed, see enable-new-tab.

The signal handler is expected to create a new page in the corresponding TabView and return it.

extra-drag-drop

Emitted when content is dropped onto a tab.

The content must be of one of the types set up via TabOverview::setup_extra_drop_target().

See [drop][struct@crate::Gtk::DropTarget#drop].

extra-drag-value

Emitted when the dropped content is preloaded.

In order for data to be preloaded, extra-drag-preload must be set to TRUE.

The content must be of one of the types set up via TabOverview::setup_extra_drop_target().

See [value][struct@crate::Gtk::DropTarget#value].

Widget

destroy

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

May result in finalization of the widget if all references are released.

This signal is not suitable for saving widget state.

direction-changed

Emitted when the text direction of a widget changes.

hide

Emitted when @widget is hidden.

keynav-failed

Emitted if keyboard navigation fails.

See [WidgetExtManual::keynav_failed()][crate::gtk::prelude::WidgetExtManual::keynav_failed()] for details.

map

Emitted when @widget is going to be mapped.

A widget is mapped when the widget is visible (which is controlled with visible) and all its parents up to the toplevel widget are also visible.

The ::map signal can be used to determine whether a widget will be drawn, for instance it can resume an animation that was stopped during the emission of unmap.

mnemonic-activate

Emitted when a widget is activated via a mnemonic.

The default handler for this signal activates @widget if @group_cycling is false, or just makes @widget grab focus if @group_cycling is true.

move-focus

Emitted when the focus is moved.

The ::move-focus signal is a keybinding signal.

The default bindings for this signal are Tab to move forward, and Shift+Tab to move backward.

Action

query-tooltip

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

This happens when the has-tooltip property is true and the hover timeout has expired with the cursor hovering above @widget; or emitted when @widget got focus in keyboard mode.

Using the given coordinates, the signal handler should determine whether a tooltip should be shown for @widget. If this is the case true should be returned, false otherwise. Note that if @keyboard_mode is true, the values of @x and @y are undefined and should not be used.

The signal handler is free to manipulate @tooltip with the therefore destined function calls.

realize

Emitted when @widget is associated with a GdkSurface.

This means that [WidgetExtManual::realize()][crate::gtk::prelude::WidgetExtManual::realize()] has been called or the widget has been mapped (that is, it is going to be drawn).

show

Emitted when @widget is shown.

state-flags-changed

Emitted when the widget state changes.

See [WidgetExtManual::state_flags()][crate::gtk::prelude::WidgetExtManual::state_flags()].

unmap

Emitted when @widget is going to be unmapped.

A widget is unmapped when either it or any of its parents up to the toplevel widget have been set as hidden.

As ::unmap indicates that a widget will not be shown any longer, it can be used to, for example, stop an animation on the widget.

unrealize

Emitted when the GdkSurface associated with @widget is destroyed.

This means that [WidgetExtManual::unrealize()][crate::gtk::prelude::WidgetExtManual::unrealize()] has been called or the widget has been unmapped (that is, it is going to be hidden).

Implements

gtk::prelude::WidgetExt, [trait@glib::ObjectExt], gtk::prelude::AccessibleExt, gtk::prelude::BuildableExt, gtk::prelude::ConstraintTargetExt

GLib type: GObject with reference counted clone semantics.

Implementations

impl TabOverview

pub fn new() -> TabOverview

Creates a new TabOverview.

Returns

the newly created TabOverview

pub fn builder() -> TabOverviewBuilder

Creates a new builder-pattern struct instance to construct TabOverview objects.

This method returns an instance of TabOverviewBuilder which can be used to create TabOverview objects.

pub fn child(&self) -> Option<Widget>

Gets the child widget of @self.

Returns

the child widget of @self

pub fn enables_new_tab(&self) -> bool

Gets whether to new tab button is enabled for @self.

Returns

whether new tab button is enabled

pub fn enables_search(&self) -> bool

Gets whether search in tabs is enabled for @self.

Returns

whether search is enabled

pub fn extra_drag_preferred_action(&self) -> DragAction

Available on crate feature v1_4 only.

Gets the current action during a drop on the extra_drop_target.

Returns

the drag action of the current drop.

pub fn is_extra_drag_preload(&self) -> bool

Gets the current drag action during a drop.

This method should only be used from inside a extra-drag-drop handler.

The action will be a subset of what was originally passed to setup_extra_drop_target().

Returns

the drag action of the current drop

pub fn is_inverted(&self) -> bool

Gets whether thumbnails use inverted layout.

Returns

whether thumbnails use inverted layout

pub fn is_open(&self) -> bool

Gets whether @self is open.

Returns

whether the overview is open

pub fn is_search_active(&self) -> bool

Gets whether search is currently active for @self.

See enable-search.

Returns

whether search is active

pub fn secondary_menu(&self) -> Option<MenuModel>

Gets the secondary menu model for @self.

Returns

the secondary menu model

pub fn shows_end_title_buttons(&self) -> bool

Gets whether end title buttons are shown in @self’s header bar.

Returns

whether end title buttons are shown

pub fn shows_start_title_buttons(&self) -> bool

Gets whether start title buttons are shown in @self’s header bar.

Returns

whether start title buttons are shown

pub fn view(&self) -> Option<TabView>

Gets the tab view @self controls.

Returns

the tab view

pub fn set_child(&self, child: Option<&impl IsA<Widget>>)

Sets the child widget of @self.

child

the child widget

pub fn set_enable_new_tab(&self, enable_new_tab: bool)

Sets whether to enable new tab button for @self.

Connect to the create-tab signal to use it.

enable_new_tab

whether to enable new tab button

pub fn set_enable_search(&self, enable_search: bool)

Sets whether to enable search in tabs for @self.

Search matches tab titles and tooltips, as well as keywords, set via keyword. Use keywords to search in e.g. page URLs in a web browser.

During search, tab reordering and drag-n-drop are disabled.

Use search-active to check out if search is currently active.

enable_search

whether to enable search

pub fn set_extra_drag_preload(&self, preload: bool)

Sets whether drop data should be preloaded on hover.

See [preload][struct@crate::Gtk::DropTarget#preload].

preload

whether to preload drop data

pub fn set_inverted(&self, inverted: bool)

Sets whether thumbnails use inverted layout.

If set to TRUE, thumbnails will have the close or unpin button at the beginning and the indicator at the end rather than the other way around.

inverted

whether thumbnails use inverted layout

pub fn set_open(&self, open: bool)

Sets whether the to open @self.

open

whether the overview is open

pub fn set_secondary_menu(&self, secondary_menu: Option<&impl IsA<MenuModel>>)

Sets the secondary menu model for @self.

Use it to add extra actions, e.g. to open a new window or undo closed tab.

secondary_menu

a menu model

pub fn set_show_end_title_buttons(&self, show_end_title_buttons: bool)

Sets whether to show end title buttons in @self’s header bar.

See show-start-title-buttons for the other side.

show_end_title_buttons

whether to show end title buttons

pub fn set_show_start_title_buttons(&self, show_start_title_buttons: bool)

Sets whether to show start title buttons in @self’s header bar.

See show-end-title-buttons for the other side.

show_start_title_buttons

whether to show start title buttons

pub fn set_view(&self, view: Option<&TabView>)

Sets the tab view to control.

The view must be inside @self, see child.

view

a tab view

pub fn connect_create_tab<F: Fn(&Self) -> TabPage + 'static>( &self, f: F, ) -> SignalHandlerId

Emitted when a tab needs to be created.

This can happen after the new tab button has been pressed, see enable-new-tab.

The signal handler is expected to create a new page in the corresponding TabView and return it.

Returns

the newly created page

pub fn connect_extra_drag_drop<F: Fn(&Self, &TabPage, &Value) -> bool + 'static>( &self, f: F, ) -> SignalHandlerId

Emitted when content is dropped onto a tab.

The content must be of one of the types set up via setup_extra_drop_target().

See [drop][struct@crate::Gtk::DropTarget#drop].

page

the page matching the tab the content was dropped onto

value

the GValue being dropped

Returns

whether the drop was accepted

pub fn connect_extra_drag_value<F: Fn(&Self, &TabPage, Option<&Value>) -> DragAction + 'static>( &self, f: F, ) -> SignalHandlerId

Emitted when the dropped content is preloaded.

In order for data to be preloaded, extra-drag-preload must be set to TRUE.

The content must be of one of the types set up via setup_extra_drop_target().

See [value][struct@crate::Gtk::DropTarget#value].

page

the page matching the tab the content was dropped onto

value

the GValue being dropped

Returns

the preferred action for the drop

pub fn connect_child_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_enable_new_tab_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_enable_search_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_extra_drag_preferred_action_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

Available on crate feature v1_4 only.

pub fn connect_extra_drag_preload_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_inverted_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_open_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_search_active_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_secondary_menu_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_show_end_title_buttons_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_show_start_title_buttons_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

pub fn connect_view_notify<F: Fn(&Self) + 'static>( &self, f: F, ) -> SignalHandlerId

impl TabOverview

pub fn setup_extra_drop_target(&self, actions: DragAction, types: &[Type])

Sets up an extra drop target on tabs.

This allows to drag arbitrary content onto tabs, for example URLs in a web browser.

If a tab is hovered for a certain period of time while dragging the content, it will be automatically selected.

The extra-drag-drop signal can be used to handle the drop.

actions

the supported actions

types

all supported GTypes that can be dropped

Trait Implementations

impl Clone for TabOverview

fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TabOverview

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TabOverview

fn default() -> Self

Returns the “default value” for a type.

impl HasParamSpec for TabOverview

type ParamSpec = ParamSpecObject

type SetValue = TabOverview

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(&str) -> ParamSpecObjectBuilder<'_, TabOverview>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for TabOverview

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Hashes the memory address of this object.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for TabOverview

fn cmp(&self, other: &Self) -> Ordering

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl ParentClassIs for TabOverview

type Parent = Widget

impl<OT: ObjectType> PartialEq<OT> for TabOverview

fn eq(&self, other: &OT) -> bool

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<OT: ObjectType> PartialOrd<OT> for TabOverview

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for TabOverview

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for TabOverview

impl IsA<Accessible> for TabOverview

impl IsA<Buildable> for TabOverview

impl IsA<ConstraintTarget> for TabOverview

impl IsA<Widget> for TabOverview