GI.Gtk.Objects.UIManager

A UIManager constructs a user interface (menus and toolbars) from one or more UI definitions, which reference actions from one or more action groups.

GtkUIManager is deprecated since GTK+ 3.10. To construct user interfaces
from XML definitions, you should use t'GI.Gtk.Objects.Builder.Builder', t'GI.Gio.Objects.MenuModel.MenuModel', et al. To
work with actions, use t'GI.Gio.Interfaces.Action.Action', t'GI.Gtk.Interfaces.Actionable.Actionable' et al. These newer classes
support richer functionality and integration with various desktop shells.
It should be possible to migrate most\/all functionality from GtkUIManager.

# UI Definitions # {XML-UI}

The UI definitions are specified in an XML format which can be roughly described by the following DTD.

Do not confuse the GtkUIManager UI Definitions described here with
the similarly named [GtkBuilder UI Definitions][BUILDER-UI].

<!ELEMENT ui          (menubar|toolbar|popup|accelerator)* >
<!ELEMENT menubar     (menuitem|separator|placeholder|menu)* >
<!ELEMENT menu        (menuitem|separator|placeholder|menu)* >
<!ELEMENT popup       (menuitem|separator|placeholder|menu)* >
<!ELEMENT toolbar     (toolitem|separator|placeholder)* >
<!ELEMENT placeholder (menuitem|toolitem|separator|placeholder|menu)* >
<!ELEMENT menuitem     EMPTY >
<!ELEMENT toolitem     (menu?) >
<!ELEMENT separator    EMPTY >
<!ELEMENT accelerator  EMPTY >
<!ATTLIST menubar      name                      #IMPLIED
                       action                    #IMPLIED >
<!ATTLIST toolbar      name                      #IMPLIED
                       action                    #IMPLIED >
<!ATTLIST popup        name                      #IMPLIED
                       action                    #IMPLIED
                       accelerators (true|false) #IMPLIED >
<!ATTLIST placeholder  name                      #IMPLIED
                       action                    #IMPLIED >
<!ATTLIST separator    name                      #IMPLIED
                       action                    #IMPLIED
                       expand       (true|false) #IMPLIED >
<!ATTLIST menu         name                      #IMPLIED
                       action                    #REQUIRED
                       position     (top|bot)    #IMPLIED >
<!ATTLIST menuitem     name                      #IMPLIED
                       action                    #REQUIRED
                       position     (top|bot)    #IMPLIED
                       always-show-image (true|false) #IMPLIED >
<!ATTLIST toolitem     name                      #IMPLIED
                       action                    #REQUIRED
                       position     (top|bot)    #IMPLIED >
<!ATTLIST accelerator  name                      #IMPLIED
                       action                    #REQUIRED >

There are some additional restrictions beyond those specified in the DTD, e.g. every toolitem must have a toolbar in its anchestry and every menuitem must have a menubar or popup in its anchestry. Since a MarkupParser is used to parse the UI description, it must not only be valid XML, but valid markup.

If a name is not specified, it defaults to the action. If an action is not specified either, the element name is used. The name and action attributes must not contain “/” characters after parsing (since that would mess up path lookup) and must be usable as XML attributes when enclosed in doublequotes, thus they must not “"” characters or references to the " entity.

A UI definition

xml code

<ui>
  <menubar>
    <menu name="FileMenu" action="FileMenuAction">
      <menuitem name="New" action="New2Action" />
      <placeholder name="FileMenuAdditions" />
    </menu>
    <menu name="JustifyMenu" action="JustifyMenuAction">
      <menuitem name="Left" action="justify-left"/>
      <menuitem name="Centre" action="justify-center"/>
      <menuitem name="Right" action="justify-right"/>
      <menuitem name="Fill" action="justify-fill"/>
    </menu>
  </menubar>
  <toolbar action="toolbar1">
    <placeholder name="JustifyToolItems">
      <separator/>
      <toolitem name="Left" action="justify-left"/>
      <toolitem name="Centre" action="justify-center"/>
      <toolitem name="Right" action="justify-right"/>
      <toolitem name="Fill" action="justify-fill"/>
      <separator/>
    </placeholder>
  </toolbar>
</ui>

The constructed widget hierarchy is very similar to the element tree of the XML, with the exception that placeholders are merged into their parents. The correspondence of XML elements to widgets should be almost obvious:

• menubar

a MenuBar

• toolbar

a Toolbar

• popup

a toplevel Menu

• menu

a Menu attached to a menuitem

• menuitem

a MenuItem subclass, the exact type depends on the action

• toolitem

a ToolItem subclass, the exact type depends on the action. Note that toolitem elements may contain a menu element, but only if their associated action specifies a MenuToolButton as proxy.

• separator

a SeparatorMenuItem or SeparatorToolItem

• accelerator

a keyboard accelerator

The “position” attribute determines where a constructed widget is positioned wrt. to its siblings in the partially constructed tree. If it is “top”, the widget is prepended, otherwise it is appended.

# UI Merging # {UI-Merging}

The most remarkable feature of UIManager is that it can overlay a set of menuitems and toolitems over another one, and demerge them later.

Merging is done based on the names of the XML elements. Each element is identified by a path which consists of the names of its anchestors, separated by slashes. For example, the menuitem named “Left” in the example above has the path /ui/menubar/JustifyMenu/Left and the toolitem with the same name has path /ui/toolbar1/JustifyToolItems/Left.

Accelerators

Every action has an accelerator path. Accelerators are installed together with menuitem proxies, but they can also be explicitly added with <accelerator> elements in the UI definition. This makes it possible to have accelerators for actions even if they have no visible proxies.

# Smart Separators # {Smart-Separators}

The separators created by UIManager are “smart”, i.e. they do not show up in the UI unless they end up between two visible menu or tool items. Separators which are located at the very beginning or end of the menu or toolbar containing them, or multiple separators next to each other, are hidden. This is a useful feature, since the merging of UI elements from multiple sources can make it hard or impossible to determine in advance whether a separator will end up in such an unfortunate position.

For separators in toolbars, you can set expand="true" to turn them from a small, visible separator to an expanding, invisible one. Toolitems following an expanding separator are effectively right-aligned.

Empty Menus

Submenus pose similar problems to separators inconnection with merging. It is impossible to know in advance whether they will end up empty after merging. UIManager offers two ways to treat empty submenus:

• make them disappear by hiding the menu item they’re attached to
• add an insensitive “Empty” item

The behaviour is chosen based on the “hide_if_empty” property of the action to which the submenu is associated.

# GtkUIManager as GtkBuildable # {tUIManager-BUILDER-UI}

The GtkUIManager implementation of the GtkBuildable interface accepts GtkActionGroup objects as <child> elements in UI definitions.

A GtkUIManager UI definition as described above can be embedded in an GtkUIManager <object> element in a GtkBuilder UI definition.

The widgets that are constructed by a GtkUIManager can be embedded in other parts of the constructed user interface with the help of the “constructor” attribute. See the example below.

An embedded GtkUIManager UI definition

xml code

<object class="GtkUIManager" id="uiman">
  <child>
    <object class="GtkActionGroup" id="actiongroup">
      <child>
        <object class="GtkAction" id="file">
          <property name="label">_File</property>
        </object>
      </child>
    </object>
  </child>
  <ui>
    <menubar name="menubar1">
      <menu action="file">
      </menu>
    </menubar>
  </ui>
</object>
<object class="GtkWindow" id="main-window">
  <child>
    <object class="GtkMenuBar" id="menubar1" constructor="uiman"/>
  </child>
</object>

Exported types

newtype UIManager

Memory-managed wrapper type.

Constructors

UIManager (ManagedPtr UIManager)

Instances

Eq UIManager

Defined in GI.Gtk.Objects.UIManager

Methods

(==) :: UIManager -> UIManager -> Bool

(/=) :: UIManager -> UIManager -> Bool

GObject UIManager

Defined in GI.Gtk.Objects.UIManager

ManagedPtrNewtype UIManager

Defined in GI.Gtk.Objects.UIManager

Methods

toManagedPtr :: UIManager -> ManagedPtr UIManager

TypedObject UIManager

Defined in GI.Gtk.Objects.UIManager

Methods

glibType :: IO GType

HasParentTypes UIManager

Defined in GI.Gtk.Objects.UIManager

IsGValue (Maybe UIManager)

Convert UIManager to and from GValue. See toGValue and fromGValue.

Defined in GI.Gtk.Objects.UIManager

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Maybe UIManager -> IO ()

gvalueGet_ :: Ptr GValue -> IO (Maybe UIManager)

type ParentTypes UIManager

Defined in GI.Gtk.Objects.UIManager

type ParentTypes UIManager = '[Object, Buildable]

class (GObject o, IsDescendantOf UIManager o) => IsUIManager o

Type class for types which can be safely cast to UIManager, for instance with toUIManager.

Instances

(GObject o, IsDescendantOf UIManager o) => IsUIManager o

Defined in GI.Gtk.Objects.UIManager

toUIManager :: (MonadIO m, IsUIManager o) => o -> m UIManager

Cast to UIManager, for types for which this is known to be safe. For general casts, use castTo.

Methods

Click to display all available methods, including inherited ones

Methods

addChild, addUi, addUiFromFile, addUiFromResource, addUiFromString, bindProperty, bindPropertyFull, constructChild, customFinished, customTagEnd, customTagStart, ensureUpdate, forceFloating, freezeNotify, getv, insertActionGroup, isFloating, newMergeId, notify, notifyByPspec, parserFinished, ref, refSink, removeActionGroup, removeUi, runDispose, stealData, stealQdata, thawNotify, unref, watchClosure.

Getters

getAccelGroup, getAction, getActionGroups, getAddTearoffs, getData, getInternalChild, getName, getProperty, getQdata, getToplevels, getUi, getWidget.

Setters

setAddTearoffs, setBuildableProperty, setData, setDataFull, setName, setProperty.

addUi

uIManagerAddUi

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager

-> Word32

mergeId: the merge id for the merged UI, see uIManagerNewMergeId

-> Text

path: a path

-> Text

name: the name for the added UI element

-> Maybe Text

action: the name of the action to be proxied, or Nothing to add a separator

-> [UIManagerItemType]

type: the type of UI element to add.

-> Bool

top: if True, the UI element is added before its siblings, otherwise it is added after its siblings.

-> m ()

Deprecated: (Since version 3.10)

Adds a UI element to the current contents of manager.

If type is UIManagerItemTypeAuto, GTK+ inserts a menuitem, toolitem or separator if such an element can be inserted at the place determined by path. Otherwise type must indicate an element that can be inserted at the place determined by path.

If path points to a menuitem or toolitem, the new element will be inserted before or after this item, depending on top.

Since: 2.4

addUiFromFile

uIManagerAddUiFromFile

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager object

-> [Char]

filename: the name of the file to parse

-> m Word32

Returns: The merge id for the merged UI. The merge id can be used to unmerge the UI with uIManagerRemoveUi. If an error occurred, the return value is 0. (Can throw GError)

Deprecated: (Since version 3.10)

Parses a file containing a [UI definition][XML-UI] and merges it with the current contents of manager.

Since: 2.4

addUiFromResource

uIManagerAddUiFromResource

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager object

-> Text

resourcePath: the resource path of the file to parse

-> m Word32

Returns: The merge id for the merged UI. The merge id can be used to unmerge the UI with uIManagerRemoveUi. If an error occurred, the return value is 0. (Can throw GError)

Deprecated: (Since version 3.10)

Parses a resource file containing a [UI definition][XML-UI] and merges it with the current contents of manager.

Since: 3.4

addUiFromString

uIManagerAddUiFromString

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager object

-> Text

buffer: the string to parse

-> Int64

length: the length of buffer (may be -1 if buffer is nul-terminated)

-> m Word32

Returns: The merge id for the merged UI. The merge id can be used to unmerge the UI with uIManagerRemoveUi. If an error occurred, the return value is 0. (Can throw GError)

Deprecated: (Since version 3.10)

Parses a string containing a [UI definition][XML-UI] and merges it with the current contents of manager. An enclosing <ui> element is added if it is missing.

Since: 2.4

ensureUpdate

uIManagerEnsureUpdate

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager

-> m ()

Deprecated: (Since version 3.10)

Makes sure that all pending updates to the UI have been completed.

This may occasionally be necessary, since UIManager updates the UI in an idle function. A typical example where this function is useful is to enforce that the menubar and toolbar have been added to the main window before showing it:

C code

gtk_container_add (GTK_CONTAINER (window), vbox);
g_signal_connect (merge, "add-widget",
                  G_CALLBACK (add_widget), vbox);
gtk_ui_manager_add_ui_from_file (merge, "my-menus");
gtk_ui_manager_add_ui_from_file (merge, "my-toolbars");
gtk_ui_manager_ensure_update (merge);
gtk_widget_show (window);

Since: 2.4

getAccelGroup

uIManagerGetAccelGroup

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager object

-> m AccelGroup

Returns: the AccelGroup.

Deprecated: (Since version 3.10)

Returns the AccelGroup associated with manager.

Since: 2.4

getAction

uIManagerGetAction

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager

-> Text

path: a path

-> m (Maybe Action)

Returns: the action whose proxy widget is found by following the path, or Nothing if no widget was found.

Deprecated: (Since version 3.10)

Looks up an action by following a path. See uIManagerGetWidget for more information about paths.

Since: 2.4

getActionGroups

uIManagerGetActionGroups

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager object

-> m [ActionGroup]

Returns: a List of action groups. The list is owned by GTK+ and should not be modified.

Deprecated: (Since version 3.10)

Returns the list of action groups associated with manager.

Since: 2.4

getAddTearoffs

uIManagerGetAddTearoffs

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager

-> m Bool

Returns: whether tearoff menu items are added

Deprecated: (Since version 3.4)Tearoff menus are deprecated and should not be used in newly written code.

Returns whether menus generated by this UIManager will have tearoff menu items.

Since: 2.4

getToplevels

uIManagerGetToplevels

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager

-> [UIManagerItemType]

types: specifies the types of toplevel widgets to include. Allowed types are GTK_UI_MANAGER_MENUBAR, GTK_UI_MANAGER_TOOLBAR and GTK_UI_MANAGER_POPUP.

-> m [Widget]

Returns: a newly-allocated SList of all toplevel widgets of the requested types. Free the returned list with g_slist_free().

Deprecated: (Since version 3.10)

Obtains a list of all toplevel widgets of the requested types.

Since: 2.4

getUi

uIManagerGetUi

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager

-> m Text

Returns: A newly allocated string containing an XML representation of the merged UI.

Deprecated: (Since version 3.10)

Creates a [UI definition][XML-UI] of the merged UI.

Since: 2.4

getWidget

uIManagerGetWidget

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager

-> Text

path: a path

-> m (Maybe Widget)

Returns: the widget found by following the path, or Nothing if no widget was found

Deprecated: (Since version 3.10)

Looks up a widget by following a path. The path consists of the names specified in the XML description of the UI. separated by “/”. Elements which don’t have a name or action attribute in the XML (e.g. <popup>) can be addressed by their XML element name (e.g. "popup"). The root element ("/ui") can be omitted in the path.

Note that the widget found by following a path that ends in a <menu>; element is the menuitem to which the menu is attached, not the menu it manages.

Also note that the widgets constructed by a ui manager are not tied to the lifecycle of the ui manager. If you add the widgets returned by this function to some container or explicitly ref them, they will survive the destruction of the ui manager.

Since: 2.4

insertActionGroup

uIManagerInsertActionGroup

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a, IsActionGroup b)

=> a

manager: a UIManager object

-> b

actionGroup: the action group to be inserted

-> Int32

pos: the position at which the group will be inserted.

-> m ()

Deprecated: (Since version 3.10)

Inserts an action group into the list of action groups associated with manager. Actions in earlier groups hide actions with the same name in later groups.

If pos is larger than the number of action groups in manager, or negative, actionGroup will be inserted at the end of the internal list.

Since: 2.4

new

uIManagerNew

Arguments

:: (HasCallStack, MonadIO m)

=> m UIManager

Returns: a new ui manager object.

Deprecated: (Since version 3.10)

Creates a new ui manager object.

Since: 2.4

newMergeId

uIManagerNewMergeId

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager

-> m Word32

Returns: an unused merge id.

Deprecated: (Since version 3.10)

Returns an unused merge id, suitable for use with uIManagerAddUi.

Since: 2.4

removeActionGroup

uIManagerRemoveActionGroup

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a, IsActionGroup b)

=> a

manager: a UIManager object

-> b

actionGroup: the action group to be removed

-> m ()

Deprecated: (Since version 3.10)

Removes an action group from the list of action groups associated with manager.

Since: 2.4

removeUi

uIManagerRemoveUi

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager object

-> Word32

mergeId: a merge id as returned by uIManagerAddUiFromString

-> m ()

Deprecated: (Since version 3.10)

Unmerges the part of manager's content identified by mergeId.

Since: 2.4

setAddTearoffs

uIManagerSetAddTearoffs

Arguments

:: (HasCallStack, MonadIO m, IsUIManager a)

=> a

manager: a UIManager

-> Bool

addTearoffs: whether tearoff menu items are added

-> m ()

Deprecated: (Since version 3.4)Tearoff menus are deprecated and should not be used in newly written code.

Sets the “add_tearoffs” property, which controls whether menus generated by this UIManager will have tearoff menu items.

Note that this only affects regular menus. Generated popup menus never have tearoff menu items.

Since: 2.4

Properties

addTearoffs

The "add-tearoffs" property controls whether generated menus have tearoff menu items.

Note that this only affects regular menus. Generated popup menus never have tearoff menu items.

Since: 2.4

constructUIManagerAddTearoffs :: (IsUIManager o, MonadIO m) => Bool -> m (GValueConstruct o)

Construct a GValueConstruct with valid value for the “add-tearoffs” property. This is rarely needed directly, but it is used by new.

getUIManagerAddTearoffs :: (MonadIO m, IsUIManager o) => o -> m Bool

Get the value of the “add-tearoffs” property. When overloading is enabled, this is equivalent to

get uIManager #addTearoffs

setUIManagerAddTearoffs :: (MonadIO m, IsUIManager o) => o -> Bool -> m ()

Set the value of the “add-tearoffs” property. When overloading is enabled, this is equivalent to

set uIManager [ #addTearoffs := value ]

ui

No description available in the introspection data.

getUIManagerUi :: (MonadIO m, IsUIManager o) => o -> m (Maybe Text)

Get the value of the “ui” property. When overloading is enabled, this is equivalent to

get uIManager #ui

Signals

actionsChanged

type UIManagerActionsChangedCallback = IO ()

Deprecated: (Since version 3.10)

The actionsChanged signal is emitted whenever the set of actions changes.

Since: 2.4

afterUIManagerActionsChanged :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerActionsChangedCallback) -> m SignalHandlerId

Connect a signal handler for the actionsChanged signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after uIManager #actionsChanged callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onUIManagerActionsChanged :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerActionsChangedCallback) -> m SignalHandlerId

Connect a signal handler for the actionsChanged signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on uIManager #actionsChanged callback

addWidget

type UIManagerAddWidgetCallback

Arguments

 = Widget

widget: the added widget

-> IO ()

Deprecated: (Since version 3.10)

The addWidget signal is emitted for each generated menubar and toolbar. It is not emitted for generated popup menus, which can be obtained by uIManagerGetWidget.

Since: 2.4

afterUIManagerAddWidget :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerAddWidgetCallback) -> m SignalHandlerId

Connect a signal handler for the addWidget signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after uIManager #addWidget callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onUIManagerAddWidget :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerAddWidgetCallback) -> m SignalHandlerId

Connect a signal handler for the addWidget signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on uIManager #addWidget callback

connectProxy

type UIManagerConnectProxyCallback

Arguments

 = Action

action: the action

-> Widget

proxy: the proxy

-> IO ()

Deprecated: (Since version 3.10)

The connectProxy signal is emitted after connecting a proxy to an action in the group.

This is intended for simple customizations for which a custom action class would be too clumsy, e.g. showing tooltips for menuitems in the statusbar.

Since: 2.4

afterUIManagerConnectProxy :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerConnectProxyCallback) -> m SignalHandlerId

Connect a signal handler for the connectProxy signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after uIManager #connectProxy callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onUIManagerConnectProxy :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerConnectProxyCallback) -> m SignalHandlerId

Connect a signal handler for the connectProxy signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on uIManager #connectProxy callback

disconnectProxy

type UIManagerDisconnectProxyCallback

Arguments

 = Action

action: the action

-> Widget

proxy: the proxy

-> IO ()

Deprecated: (Since version 3.10)

The disconnectProxy signal is emitted after disconnecting a proxy from an action in the group.

Since: 2.4

afterUIManagerDisconnectProxy :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerDisconnectProxyCallback) -> m SignalHandlerId

Connect a signal handler for the disconnectProxy signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after uIManager #disconnectProxy callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onUIManagerDisconnectProxy :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerDisconnectProxyCallback) -> m SignalHandlerId

Connect a signal handler for the disconnectProxy signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on uIManager #disconnectProxy callback

postActivate

type UIManagerPostActivateCallback

Arguments

 = Action

action: the action

-> IO ()

Deprecated: (Since version 3.10)

The postActivate signal is emitted just after the action is activated.

This is intended for applications to get notification just after any action is activated.

Since: 2.4

afterUIManagerPostActivate :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerPostActivateCallback) -> m SignalHandlerId

Connect a signal handler for the postActivate signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after uIManager #postActivate callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onUIManagerPostActivate :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerPostActivateCallback) -> m SignalHandlerId

Connect a signal handler for the postActivate signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on uIManager #postActivate callback

preActivate

type UIManagerPreActivateCallback

Arguments

 = Action

action: the action

-> IO ()

Deprecated: (Since version 3.10)

The preActivate signal is emitted just before the action is activated.

This is intended for applications to get notification just before any action is activated.

Since: 2.4

afterUIManagerPreActivate :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerPreActivateCallback) -> m SignalHandlerId

Connect a signal handler for the preActivate signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after uIManager #preActivate callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onUIManagerPreActivate :: (IsUIManager a, MonadIO m) => a -> ((?self :: a) => UIManagerPreActivateCallback) -> m SignalHandlerId

Connect a signal handler for the preActivate signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on uIManager #preActivate callback