1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
|
#include "panel.h"
#include "widgets/panel/panel-item-icon.h"
#include "widgets/panel/panel-item-clock.h"
#include "widgets/panel/panel-item-workspaces.h"
#include "widgets/panel/panel-item-status.h"
#include <gtk4-layer-shell.h>
//
// FoobarPanel:
//
// A panel that is divided into start, center and end sections. Each section can be configured to present a range of
// items.
//
struct _FoobarPanel
{
GtkWindow parent_instance;
GtkWidget* main_layout;
GtkWidget* start_items;
GtkWidget* center_items;
GtkWidget* end_items;
GPtrArray* item_widgets;
GdkMonitor* monitor;
FoobarBatteryService* battery_service;
FoobarClockService* clock_service;
FoobarBrightnessService* brightness_service;
FoobarWorkspaceService* workspace_service;
FoobarAudioService* audio_service;
FoobarNetworkService* network_service;
FoobarBluetoothService* bluetooth_service;
FoobarNotificationService* notification_service;
FoobarConfigurationService* configuration_service;
gulong config_handler_id;
};
static void foobar_panel_class_init ( FoobarPanelClass* klass );
static void foobar_panel_init ( FoobarPanel* self );
static void foobar_panel_finalize ( GObject* object );
static void foobar_panel_handle_config_change( GObject* object,
GParamSpec* pspec,
gpointer userdata );
G_DEFINE_FINAL_TYPE( FoobarPanel, foobar_panel, GTK_TYPE_APPLICATION_WINDOW )
// ---------------------------------------------------------------------------------------------------------------------
// Window Implementation
// ---------------------------------------------------------------------------------------------------------------------
//
// Static initialization for the panel.
//
void foobar_panel_class_init( FoobarPanelClass* klass )
{
GObjectClass* object_klass = G_OBJECT_CLASS( klass );
object_klass->finalize = foobar_panel_finalize;
}
//
// Instance initialization for the panel.
//
void foobar_panel_init( FoobarPanel* self )
{
self->start_items = gtk_box_new( GTK_ORIENTATION_VERTICAL, 0 );
self->center_items = gtk_box_new( GTK_ORIENTATION_VERTICAL, 0 );
self->end_items = gtk_box_new( GTK_ORIENTATION_VERTICAL, 0 );
self->main_layout = gtk_center_box_new( );
gtk_center_box_set_start_widget( GTK_CENTER_BOX( self->main_layout ), self->start_items );
gtk_center_box_set_center_widget( GTK_CENTER_BOX( self->main_layout ), self->center_items );
gtk_center_box_set_end_widget( GTK_CENTER_BOX( self->main_layout ), self->end_items );
gtk_window_set_child( GTK_WINDOW( self ), self->main_layout );
gtk_window_set_title( GTK_WINDOW( self ), "Foobar Panel" );
gtk_widget_add_css_class( GTK_WIDGET( self ), "panel" );
gtk_layer_init_for_window( GTK_WINDOW( self ) );
gtk_layer_set_namespace( GTK_WINDOW( self ), "foobar-panel" );
gtk_layer_auto_exclusive_zone_enable( GTK_WINDOW( self ) );
}
//
// Instance cleanup for the panel.
//
void foobar_panel_finalize( GObject* object )
{
FoobarPanel* self = (FoobarPanel*)object;
g_clear_signal_handler( &self->config_handler_id, self->configuration_service );
g_clear_object( &self->monitor );
g_clear_object( &self->battery_service );
g_clear_object( &self->clock_service );
g_clear_object( &self->brightness_service );
g_clear_object( &self->workspace_service );
g_clear_object( &self->audio_service );
g_clear_object( &self->network_service );
g_clear_object( &self->bluetooth_service );
g_clear_object( &self->notification_service );
g_clear_object( &self->configuration_service );
g_clear_pointer( &self->item_widgets, g_ptr_array_unref );
G_OBJECT_CLASS( foobar_panel_parent_class )->finalize( object );
}
// ---------------------------------------------------------------------------------------------------------------------
// Public API
// ---------------------------------------------------------------------------------------------------------------------
//
// Create a new panel instance.
//
// An optional GdkMonitor instance can be provided for multi-monitor setups. Otherwise, the default monitor is used.
//
FoobarPanel* foobar_panel_new(
GtkApplication* app,
GdkMonitor* monitor,
FoobarBatteryService* battery_service,
FoobarClockService* clock_service,
FoobarBrightnessService* brightness_service,
FoobarWorkspaceService* workspace_service,
FoobarAudioService* audio_service,
FoobarNetworkService* network_service,
FoobarBluetoothService* bluetooth_service,
FoobarNotificationService* notification_service,
FoobarConfigurationService* configuration_service )
{
g_return_val_if_fail( GTK_IS_APPLICATION( app ), NULL );
g_return_val_if_fail( monitor == NULL || GDK_IS_MONITOR( monitor ), NULL );
g_return_val_if_fail( FOOBAR_IS_BATTERY_SERVICE( battery_service ), NULL );
g_return_val_if_fail( FOOBAR_IS_CLOCK_SERVICE( clock_service ), NULL );
g_return_val_if_fail( FOOBAR_IS_BRIGHTNESS_SERVICE( brightness_service ), NULL );
g_return_val_if_fail( FOOBAR_IS_WORKSPACE_SERVICE( workspace_service ), NULL );
g_return_val_if_fail( FOOBAR_IS_AUDIO_SERVICE( audio_service ), NULL );
g_return_val_if_fail( FOOBAR_IS_NETWORK_SERVICE( network_service ), NULL );
g_return_val_if_fail( FOOBAR_IS_BLUETOOTH_SERVICE( bluetooth_service ), NULL );
g_return_val_if_fail( FOOBAR_IS_NOTIFICATION_SERVICE( notification_service ), NULL );
g_return_val_if_fail( FOOBAR_IS_CONFIGURATION_SERVICE( configuration_service ), NULL );
FoobarPanel* self = g_object_new( FOOBAR_TYPE_PANEL, "application", app, NULL );
self->battery_service = g_object_ref( battery_service );
self->clock_service = g_object_ref( clock_service );
self->brightness_service = g_object_ref( brightness_service );
self->workspace_service = g_object_ref( workspace_service );
self->audio_service = g_object_ref( audio_service );
self->network_service = g_object_ref( network_service );
self->bluetooth_service = g_object_ref( bluetooth_service );
self->notification_service = g_object_ref( notification_service );
self->configuration_service = g_object_ref( configuration_service );
// Set the monitor.
if ( monitor )
{
self->monitor = g_object_ref( monitor );
gtk_layer_set_monitor( GTK_WINDOW( self ), self->monitor );
}
// Apply the configuration and subscribe to changes.
FoobarConfiguration const* config = foobar_configuration_service_get_current( self->configuration_service );
foobar_panel_apply_configuration( self, foobar_configuration_get_panel( config ) );
self->config_handler_id = g_signal_connect(
self->configuration_service,
"notify::current",
G_CALLBACK( foobar_panel_handle_config_change ),
self );
return self;
}
//
// Apply the panel configuration provided by the configuration service.
//
void foobar_panel_apply_configuration(
FoobarPanel* self,
FoobarPanelConfiguration const* config )
{
g_return_if_fail( FOOBAR_IS_PANEL( self ) );
g_return_if_fail( config != NULL );
// Derive the orientation from the panel's position.
FoobarScreenEdge position = foobar_panel_configuration_get_position( config );
GtkOrientation orientation;
gchar const* orientation_css_class;
switch ( position )
{
case FOOBAR_SCREEN_EDGE_LEFT:
case FOOBAR_SCREEN_EDGE_RIGHT:
orientation = GTK_ORIENTATION_VERTICAL;
orientation_css_class = "vertical";
break;
case FOOBAR_SCREEN_EDGE_TOP:
case FOOBAR_SCREEN_EDGE_BOTTOM:
orientation = GTK_ORIENTATION_HORIZONTAL;
orientation_css_class = "horizontal";
break;
default:
g_warn_if_reached( );
return;
}
// Configure the window.
gtk_widget_remove_css_class( GTK_WIDGET( self ), "horizontal" );
gtk_widget_remove_css_class( GTK_WIDGET( self ), "vertical" );
gtk_widget_add_css_class( GTK_WIDGET( self ), orientation_css_class );
gint size = foobar_panel_configuration_get_size( config );
gtk_window_set_default_size(
GTK_WINDOW( self ),
orientation == GTK_ORIENTATION_VERTICAL ? size : -1,
orientation == GTK_ORIENTATION_HORIZONTAL ? size : -1 );
gtk_layer_set_anchor( GTK_WINDOW( self ), GTK_LAYER_SHELL_EDGE_LEFT, position != FOOBAR_SCREEN_EDGE_RIGHT );
gtk_layer_set_anchor( GTK_WINDOW( self ), GTK_LAYER_SHELL_EDGE_RIGHT, position != FOOBAR_SCREEN_EDGE_LEFT );
gtk_layer_set_anchor( GTK_WINDOW( self ), GTK_LAYER_SHELL_EDGE_TOP, position != FOOBAR_SCREEN_EDGE_BOTTOM );
gtk_layer_set_anchor( GTK_WINDOW( self ), GTK_LAYER_SHELL_EDGE_BOTTOM, position != FOOBAR_SCREEN_EDGE_TOP );
// Configure layout spacing.
gint margin = foobar_panel_configuration_get_margin( config );
gtk_layer_set_margin( GTK_WINDOW( self ), GTK_LAYER_SHELL_EDGE_LEFT, position != FOOBAR_SCREEN_EDGE_RIGHT ? margin : 0 );
gtk_layer_set_margin( GTK_WINDOW( self ), GTK_LAYER_SHELL_EDGE_RIGHT, position != FOOBAR_SCREEN_EDGE_LEFT ? margin : 0 );
gtk_layer_set_margin( GTK_WINDOW( self ), GTK_LAYER_SHELL_EDGE_TOP, position != FOOBAR_SCREEN_EDGE_BOTTOM ? margin : 0 );
gtk_layer_set_margin( GTK_WINDOW( self ), GTK_LAYER_SHELL_EDGE_BOTTOM, position != FOOBAR_SCREEN_EDGE_TOP ? margin : 0 );
gint padding = foobar_panel_configuration_get_padding( config );
gtk_widget_set_margin_start( GTK_WIDGET( self->main_layout ), orientation == GTK_ORIENTATION_HORIZONTAL ? padding : 0 );
gtk_widget_set_margin_end( GTK_WIDGET( self->main_layout ), orientation == GTK_ORIENTATION_HORIZONTAL ? padding : 0 );
gtk_widget_set_margin_top( GTK_WIDGET( self->main_layout ), orientation == GTK_ORIENTATION_VERTICAL ? padding : 0 );
gtk_widget_set_margin_bottom( GTK_WIDGET( self->main_layout ), orientation == GTK_ORIENTATION_VERTICAL ? padding : 0 );
gint spacing = foobar_panel_configuration_get_spacing( config );
gtk_box_set_spacing( GTK_BOX(self->start_items), spacing );
gtk_box_set_spacing( GTK_BOX(self->center_items), spacing );
gtk_box_set_spacing( GTK_BOX(self->end_items), spacing );
gtk_widget_set_margin_top( GTK_WIDGET( self->center_items ), orientation == GTK_ORIENTATION_VERTICAL ? spacing : 0 );
gtk_widget_set_margin_bottom( GTK_WIDGET( self->center_items ), orientation == GTK_ORIENTATION_VERTICAL ? spacing : 0 );
gtk_widget_set_margin_start( GTK_WIDGET( self->center_items ), orientation == GTK_ORIENTATION_HORIZONTAL ? spacing : 0 );
gtk_widget_set_margin_end( GTK_WIDGET( self->center_items ), orientation == GTK_ORIENTATION_HORIZONTAL ? spacing : 0 );
// Configure the container orientations.
gtk_orientable_set_orientation( GTK_ORIENTABLE( self->main_layout ), orientation );
gtk_orientable_set_orientation( GTK_ORIENTABLE( self->start_items ), orientation );
gtk_orientable_set_orientation( GTK_ORIENTABLE( self->center_items ), orientation );
gtk_orientable_set_orientation( GTK_ORIENTABLE( self->end_items ), orientation );
// Re-create panel items.
if ( self->item_widgets )
{
for ( guint i = 0; i < self->item_widgets->len; ++i )
{
gtk_widget_unparent( g_ptr_array_index( self->item_widgets, i ) );
}
g_clear_pointer( &self->item_widgets, g_ptr_array_unref );
}
gsize items_count;
FoobarPanelItemConfiguration const* const* items = foobar_panel_configuration_get_items( config, &items_count );
self->item_widgets = g_ptr_array_sized_new( items_count );
for ( gsize i = 0; i < items_count; ++i )
{
// Create an item for the specified type and configuration.
FoobarPanelItemConfiguration const* item = items[i];
FoobarPanelItem* item_widget;
switch ( foobar_panel_item_configuration_get_kind( item ) )
{
case FOOBAR_PANEL_ITEM_KIND_ICON:
item_widget = foobar_panel_item_icon_new( item );
break;
case FOOBAR_PANEL_ITEM_KIND_CLOCK:
item_widget = foobar_panel_item_clock_new(
item,
self->clock_service );
break;
case FOOBAR_PANEL_ITEM_KIND_WORKSPACES:
item_widget = foobar_panel_item_workspaces_new(
item,
self->monitor,
self->workspace_service );
break;
case FOOBAR_PANEL_ITEM_KIND_STATUS:
item_widget = foobar_panel_item_status_new(
item,
self->battery_service,
self->brightness_service,
self->audio_service,
self->network_service,
self->bluetooth_service,
self->notification_service );
break;
default:
g_warn_if_reached( );
continue;
}
// Propagate the panel's orientation if the item supports it.
if ( GTK_IS_ORIENTABLE( item_widget ) )
{
gtk_orientable_set_orientation( GTK_ORIENTABLE( item_widget ), orientation );
}
// Add the item to the correct container, depending on its configured position.
switch ( foobar_panel_item_configuration_get_position( item ) )
{
case FOOBAR_PANEL_ITEM_POSITION_START:
gtk_box_append( GTK_BOX( self->start_items ), GTK_WIDGET( item_widget ) );
break;
case FOOBAR_PANEL_ITEM_POSITION_CENTER:
gtk_box_append( GTK_BOX( self->center_items ), GTK_WIDGET( item_widget ) );
break;
case FOOBAR_PANEL_ITEM_POSITION_END:
gtk_box_append( GTK_BOX( self->end_items ), GTK_WIDGET( item_widget ) );
break;
default:
g_warn_if_reached( );
break;
}
// Add the item to the pointer array for easier cleanup.
g_ptr_array_add( self->item_widgets, GTK_WIDGET( item_widget ) );
}
}
// ---------------------------------------------------------------------------------------------------------------------
// Signal Handlers
// ---------------------------------------------------------------------------------------------------------------------
//
// Signal handler called when the global configuration file has changed.
//
void foobar_panel_handle_config_change(
GObject* object,
GParamSpec* pspec,
gpointer userdata )
{
(void)object;
(void)pspec;
FoobarPanel* self = (FoobarPanel*)userdata;
FoobarConfiguration const* config = foobar_configuration_service_get_current( self->configuration_service );
foobar_panel_apply_configuration( self, foobar_configuration_get_panel( config ) );
}
|
