BonoboControl

BonoboControl — An implementation of the control interface for GtkWidgets

Functions

Signals

void activate Run Last
void disconnected Run Last
void plug-created Run Last
void set-frame Run Last

Types and Values

Object Hierarchy

    GObject
    ╰── BonoboObject
        ╰── BonoboControl

Description

The BonoboControl object implements the CORBA interface for handling remote embeddable components. A Control is a light weight, single view, arbitrarily complex 'widget'. Controls typicaly expose much of their functionality through a property bag.

Figure 1. The Bonobo::Control interface

The Bonobo::Control interface

A BonoboControl provides the server ( or component ) side implementation of a Control. The client that uses this control will probably use a BonoboWidget to use the control in their program.

If you want to expose your widget as a control it is very simple

Example 1. CORBA-ifying your GtkWidget

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BonoboControl *control;
GtkWidget     *widget;
Bonobo_Unknown corba_object;
widget = make_my_widget ();
gtk_widget_show (widget);
control = bonobo_control_new (widget);
corba_object = BONOBO_OBJREF (control);


The corba_object can then be passed off down the wire to anyone and the control popped into a BonoboWidget or BonoboControlFrame at the other end. Here is an even less useful example

Example 2. A pretty useless Control

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GtkWidget *widget;
widget = gtk_button_new_with_label ("My Control");
gtk_widget_show (widget);
return bonobo_control_new (widget);


If you learn only one thing from this example, it should be that you need to do a gtk_widget_show on your control. It is not sufficient to do a gtk_widget_show_all on the top level of the client side, since this will not ( and should not ) propagate over to the Control.

One final thing worth thinking about is activation. When a control is embedded inside a BonoboControlFrame, it is initialy inactive. In order for the control to recieve interactive input it is neccessary to use bonobo_control_frame_activate. This signals to the control that it is activated, at which point the Control should merge any UI elements it has with the associated BonoboUIComponent. This needs to be done every time the control is activated.

Functions

bonobo_control_new ()

BonoboControl *
bonobo_control_new (GtkWidget *widget);

This function creates a new BonoboControl object for widget .

Parameters

widget

a GTK widget that contains the control and will be passed to the container process.

 

Returns

a BonoboControl object that implements the Bonobo::Control CORBA service that will transfer the widget to the container process.


bonobo_control_get_widget ()

GtkWidget *
bonobo_control_get_widget (BonoboControl *control);

Returns the GtkWidget associated with a BonoboControl.

Parameters

control

a BonoboControl

 

Returns

the BonoboControl's widget


bonobo_control_set_automerge ()

void
bonobo_control_set_automerge (BonoboControl *control,
                              gboolean automerge);

Sets whether or not the control handles menu/toolbar merging automatically. If automerge is on, the control will automatically register its BonoboUIComponent with the remote BonoboUIContainer when it is activated.

Parameters

control

A BonoboControl.

 

automerge

Whether or not menus and toolbars should be automatically merged when the control is activated.

 

bonobo_control_get_automerge ()

gboolean
bonobo_control_get_automerge (BonoboControl *control);

Parameters

control

A BonoboControl.

 

Returns

Whether or not the control is set to automerge its menus/toolbars. See bonobo_control_set_automerge().


bonobo_control_set_property ()

void
bonobo_control_set_property (BonoboControl *control,
                             CORBA_Environment *opt_ev,
                             const char *first_prop,
                             ...);

This method takes a NULL terminated list of name, type, value triplicates, and sets the corresponding values on the control's associated property bag.

Parameters

control

the control with associated property bag

 

opt_ev

optional corba exception environment

 

first_prop

the first property's name

 

bonobo_control_get_property ()

void
bonobo_control_get_property (BonoboControl *control,
                             CORBA_Environment *opt_ev,
                             const char *first_prop,
                             ...);

This method takes a NULL terminated list of name, type, value triplicates, and fetches the corresponding values on the control's associated property bag.

Parameters

control

the control with associated property bag

 

opt_ev

optional corba exception environment

 

first_prop

the first property's name

 

bonobo_control_set_transient_for ()

void
bonobo_control_set_transient_for (BonoboControl *control,
                                  GtkWindow *window,
                                  CORBA_Environment *opt_ev);

Attempts to make the window transient for the toplevel of any associated controlframe the BonoboControl may have.

Parameters

control

a control with associated control frame

 

window

a window upon which to set the transient window.

 

bonobo_control_unset_transient_for ()

void
bonobo_control_unset_transient_for (BonoboControl *control,
                                    GtkWindow *window,
                                    CORBA_Environment *opt_ev);

Parameters

control

a control with associated control frame

 

window

a window upon which to unset the transient window.

 

bonobo_control_construct ()

BonoboControl *
bonobo_control_construct (BonoboControl *control,
                          GtkWidget *widget);

Returns


bonobo_control_get_ui_component ()

BonoboUIComponent *
bonobo_control_get_ui_component (BonoboControl *control);

Parameters

control

The control

 

Returns

the associated UI component


bonobo_control_set_ui_component ()

void
bonobo_control_set_ui_component (BonoboControl *control,
                                 BonoboUIComponent *component);


bonobo_control_get_remote_ui_container ()

Bonobo_UIContainer
bonobo_control_get_remote_ui_container
                               (BonoboControl *control,
                                CORBA_Environment *opt_ev);

Parameters

control

A BonoboControl object which is associated with a remote ControlFrame.

 

opt_ev

an optional exception environment

 

Returns

The Bonobo_UIContainer CORBA server for the remote BonoboControlFrame.


bonobo_control_set_control_frame ()

void
bonobo_control_set_control_frame (BonoboControl *control,
                                  Bonobo_ControlFrame control_frame,
                                  CORBA_Environment *opt_ev);


bonobo_control_get_control_frame ()

Bonobo_ControlFrame
bonobo_control_get_control_frame (BonoboControl *control,
                                  CORBA_Environment *opt_ev);

Parameters

control

A BonoboControl object whose Bonobo_ControlFrame CORBA interface is being retrieved.

 

opt_ev

an optional exception environment

 

Returns

The Bonobo_ControlFrame CORBA object associated with control , this is a CORBA_Object_duplicated object. You need to CORBA_Object_release it when you are done with it.


bonobo_control_set_properties ()

void
bonobo_control_set_properties (BonoboControl *control,
                               Bonobo_PropertyBag pb,
                               CORBA_Environment *opt_ev);

Binds pb to control . When a remote object queries control for its property bag, pb will be used in the responses.

Parameters

control

A BonoboControl object.

 

pb

A Bonobo_PropertyBag.

 

opt_ev

An optional exception environment

 

bonobo_control_get_properties ()

Bonobo_PropertyBag
bonobo_control_get_properties (BonoboControl *control);

Parameters

control

A BonoboControl whose PropertyBag has already been set.

 

Returns

The Bonobo_PropertyBag bound to control .


bonobo_control_get_ambient_properties ()

Bonobo_PropertyBag
bonobo_control_get_ambient_properties (BonoboControl *control,
                                       CORBA_Environment *opt_ev);

Parameters

control

A BonoboControl which is bound to a remote BonoboControlFrame.

 

opt_ev

an optional exception environment

 

Returns

A Bonobo_PropertyBag bound to the bag of ambient properties associated with this Control's ControlFrame.


bonobo_control_activate_notify ()

void
bonobo_control_activate_notify (BonoboControl *control,
                                gboolean activated,
                                CORBA_Environment *opt_ev);

Notifies the remote ControlFrame which is associated with control that control has been activated/deactivated.

Parameters

control

A BonoboControl object which is bound to a remote ControlFrame.

 

activated

Whether or not control has been activated.

 

opt_ev

An optional exception environment

 

bonobo_control_window_id_from_x11 ()

Bonobo_Gdk_WindowId
bonobo_control_window_id_from_x11 (guint32 x11_id);

Parameters

x11_id

the x11 window id or Windows HWND.

 

Returns

the window id or handle as a string; free after use.


bonobo_control_x11_from_window_id ()

guint32
bonobo_control_x11_from_window_id (const CORBA_char *id);

De-mangle a window id string, fields are separated by ':' character, currently only the first field is used.

Parameters

id

CORBA_char *

 

Returns

the native window id.


bonobo_control_windowid_from_x11()

#define             bonobo_control_windowid_from_x11(a)

Returns


bonobo_control_get_popup_ui_container ()

BonoboUIContainer *
bonobo_control_get_popup_ui_container (BonoboControl *control);

Returns


bonobo_control_get_popup_ui_component ()

BonoboUIComponent *
bonobo_control_get_popup_ui_component (BonoboControl *control);

Returns


bonobo_control_set_popup_ui_container ()

void
bonobo_control_set_popup_ui_container (BonoboControl *control,
                                       BonoboUIContainer *ui_container);


bonobo_control_do_popup ()

gboolean
bonobo_control_do_popup (BonoboControl *control,
                         guint button,
                         guint32 activate_time);

Returns


bonobo_control_do_popup_full ()

gboolean
bonobo_control_do_popup_full (BonoboControl *control,
                              GtkWidget *parent_menu_shell,
                              GtkWidget *parent_menu_item,
                              GtkMenuPositionFunc func,
                              gpointer data,
                              guint button,
                              guint32 activate_time);

Returns


BonoboControlLifeCallback ()

void
(*BonoboControlLifeCallback) (void);


bonobo_control_life_set_purge ()

void
bonobo_control_life_set_purge (long ms Param1);

Set time we're prepared to wait without a ControlFrame before terminating the Control. This can happen if the panel activates us but crashes before the set_frame.


bonobo_control_life_set_callback ()

void
bonobo_control_life_set_callback (BonoboControlLifeCallback all_dead_callback);

See bonobo_control_life_instrument

Parameters

all_dead_callback

method to call at idle when no controls remain

 

bonobo_control_life_instrument ()

void
bonobo_control_life_instrument (BonoboControl *control);

Request that control is lifecycle managed by this code; when it (and all other registerees are dead, the all_dead_callback set by bonobo_control_life_set_callback will be called at idle.

Parameters

control

control to manage.

 

bonobo_control_life_get_count ()

int
bonobo_control_life_get_count (void);

calculates the number of live controls under management.

Returns

the number of live controls.

Types and Values

struct BonoboControl

struct BonoboControl;


BonoboControlPrivate

typedef struct _BonoboControlPrivate BonoboControlPrivate;


BonoboControlClass

typedef struct {
	BonoboObjectClass      parent_class;

	POA_Bonobo_Control__epv epv;

	gpointer dummy[2];

	/* Signals. */
	void (*plug_created)   (BonoboControl *control);
	void (*disconnected)   (BonoboControl *control);
	void (*set_frame)      (BonoboControl *control);
	void (*activate)       (BonoboControl *control, gboolean state);
} BonoboControlClass;


BONOBO_CONTROL_POPUP_BUTTON1

#define                     BONOBO_CONTROL_POPUP_BUTTON1           "/popups/button1"


BONOBO_CONTROL_POPUP_BUTTON2

#define                     BONOBO_CONTROL_POPUP_BUTTON2           "/popups/button2"


BONOBO_CONTROL_POPUP_BUTTON3

#define                     BONOBO_CONTROL_POPUP_BUTTON3           "/popups/button3"

Signal Details

The “activate” signal

void
user_function (BonoboControl *bonobocontrol,
               gboolean       arg1,
               gpointer       user_data)

Parameters

bonobocontrol

the object which received the signal.

 

user_data

user data set when the signal handler was connected.

 

Flags: Run Last


The “disconnected” signal

void
user_function (BonoboControl *bonobocontrol,
               gpointer       user_data)

Parameters

bonobocontrol

the object which received the signal.

 

user_data

user data set when the signal handler was connected.

 

Flags: Run Last


The “plug-created” signal

void
user_function (BonoboControl *bonobocontrol,
               gpointer       user_data)

Parameters

bonobocontrol

the object which received the signal.

 

user_data

user data set when the signal handler was connected.

 

Flags: Run Last


The “set-frame” signal

void
user_function (BonoboControl *bonobocontrol,
               gpointer       user_data)

Parameters

bonobocontrol

the object which received the signal.

 

user_data

user data set when the signal handler was connected.

 

Flags: Run Last

See Also

BonoboWidget, bonobo_widget_new()