init hs project

1 files changed, 327 insertions, 0 deletions

diff --git a/csrc/widgets/panel/panel-item-workspaces.c b/csrc/widgets/panel/panel-item-workspaces.c
new file mode 100644
index 0000000..dff629b
--- /dev/null
+++ b/csrc/widgets/panel/panel-item-workspaces.c
@@ -0,0 +1,327 @@
+#include "widgets/panel/panel-item-workspaces.h"
+#include "widgets/inset-container.h"
+
+//
+// FoobarPanelItemWorkspaces:
+//
+// A panel item showing all workspaces for the current monitor (if multi-monitor mode is enabled) as buttons, indicating
+// the current state of the workspace (i.e., whether it's active, visible, special, etc.).
+//
+
+struct _FoobarPanelItemWorkspaces
+{
+	FoobarPanelItem         parent_instance;
+	GtkWidget*              list_view;
+	GtkWidget*              inset_container;
+	FoobarWorkspaceService* workspace_service;
+	gint                    button_size;
+	gint                    spacing;
+	GtkFilter*              monitor_filter;
+	gulong                  monitor_configuration_handler_id;
+};
+
+enum
+{
+	PROP_ORIENTATION = 1,
+	N_PROPS,
+};
+
+static GParamSpec* props[N_PROPS] = { 0 };
+
+static void     foobar_panel_item_workspaces_class_init                          ( FoobarPanelItemWorkspacesClass* klass );
+static void     foobar_panel_item_workspaces_init                                ( FoobarPanelItemWorkspaces*      self );
+static void     foobar_panel_item_workspaces_get_property                        ( GObject*                        object,
+                                                                                   guint                           prop_id,
+                                                                                   GValue*                         value,
+                                                                                   GParamSpec*                     pspec );
+static void     foobar_panel_item_workspaces_set_property                        ( GObject*                        object,
+                                                                                   guint                           prop_id,
+                                                                                   GValue const*                   value,
+                                                                                   GParamSpec*                     pspec );
+static void     foobar_panel_item_workspaces_finalize                            ( GObject*                        object );
+static void     foobar_panel_item_workspaces_handle_item_setup                   ( GtkListItemFactory*             factory,
+                                                                                   GtkListItem*                    list_item,
+                                                                                   gpointer                        userdata );
+static void     foobar_panel_item_workspaces_handle_item_clicked                 ( GtkButton*                      button,
+                                                                                   gpointer                        userdata );
+static void     foobar_panel_item_workspaces_handle_monitor_configuration_changed( FoobarWorkspaceService*         service,
+                                                                                   gpointer                        userdata );
+static gchar**  foobar_panel_item_workspaces_compute_css_classes                 ( GtkExpression*                  expression,
+                                                                                   FoobarWorkspaceFlags            flags,
+                                                                                   gpointer                        userdata );
+static gboolean foobar_panel_item_workspaces_monitor_filter_func                 ( gpointer                        item,
+                                                                                   gpointer                        userdata );
+
+G_DEFINE_FINAL_TYPE_WITH_CODE(
+	FoobarPanelItemWorkspaces,
+	foobar_panel_item_workspaces,
+	FOOBAR_TYPE_PANEL_ITEM,
+	G_IMPLEMENT_INTERFACE( GTK_TYPE_ORIENTABLE, NULL ) )
+
+// ---------------------------------------------------------------------------------------------------------------------
+// Panel Item Implementation
+// ---------------------------------------------------------------------------------------------------------------------
+
+//
+// Static initialization for workspace panel items.
+//
+void foobar_panel_item_workspaces_class_init( FoobarPanelItemWorkspacesClass* klass )
+{
+	GObjectClass* object_klass = G_OBJECT_CLASS( klass );
+	object_klass->get_property = foobar_panel_item_workspaces_get_property;
+	object_klass->set_property = foobar_panel_item_workspaces_set_property;
+	object_klass->finalize = foobar_panel_item_workspaces_finalize;
+
+	gpointer orientable_iface = g_type_default_interface_peek( GTK_TYPE_ORIENTABLE );
+	props[PROP_ORIENTATION] = g_param_spec_override(
+		"orientation",
+		g_object_interface_find_property( orientable_iface, "orientation" ) );
+	g_object_class_install_properties( object_klass, N_PROPS, props );
+}
+
+//
+// Instance initialization for workspace panel items.
+//
+void foobar_panel_item_workspaces_init( FoobarPanelItemWorkspaces* self )
+{
+	GtkListItemFactory* item_factory = gtk_signal_list_item_factory_new( );
+	g_signal_connect( item_factory, "setup", G_CALLBACK( foobar_panel_item_workspaces_handle_item_setup ), self );
+
+	self->list_view = gtk_list_view_new( NULL, item_factory );
+	gtk_widget_set_halign( self->list_view, GTK_ALIGN_CENTER );
+	gtk_widget_set_valign( self->list_view, GTK_ALIGN_CENTER );
+	gtk_list_view_set_single_click_activate( GTK_LIST_VIEW( self->list_view ), TRUE );
+
+	self->inset_container = foobar_inset_container_new( );
+	foobar_inset_container_set_child( FOOBAR_INSET_CONTAINER( self->inset_container ), GTK_WIDGET( self->list_view ) );
+
+	gtk_widget_add_css_class( GTK_WIDGET( self ), "workspaces" );
+	foobar_panel_item_set_child( FOOBAR_PANEL_ITEM( self ), GTK_WIDGET( self->inset_container ) );
+}
+
+//
+// Property getter implementation, mapping a property id to a method.
+//
+void foobar_panel_item_workspaces_get_property(
+	GObject*    object,
+	guint       prop_id,
+	GValue*     value,
+	GParamSpec* pspec )
+{
+	FoobarPanelItemWorkspaces* self = (FoobarPanelItemWorkspaces*)object;
+
+	switch ( prop_id )
+	{
+		case PROP_ORIENTATION:
+			g_value_set_enum( value, gtk_orientable_get_orientation( GTK_ORIENTABLE( self->list_view ) ) );
+			break;
+		default:
+			G_OBJECT_WARN_INVALID_PROPERTY_ID( object, prop_id, pspec );
+			break;
+	}
+}
+
+//
+// Property setter implementation, mapping a property id to a method.
+//
+void foobar_panel_item_workspaces_set_property(
+	GObject*      object,
+	guint         prop_id,
+	GValue const* value,
+	GParamSpec*   pspec )
+{
+	FoobarPanelItemWorkspaces* self = (FoobarPanelItemWorkspaces*)object;
+
+	switch ( prop_id )
+	{
+		case PROP_ORIENTATION:
+			gtk_orientable_set_orientation( GTK_ORIENTABLE( self->list_view ), g_value_get_enum( value ) );
+			g_object_notify_by_pspec( G_OBJECT( self ), props[PROP_ORIENTATION] );
+			break;
+		default:
+			G_OBJECT_WARN_INVALID_PROPERTY_ID( object, prop_id, pspec );
+			break;
+	}
+}
+
+//
+// Instance cleanup for workspace panel items.
+//
+void foobar_panel_item_workspaces_finalize( GObject* object )
+{
+	FoobarPanelItemWorkspaces* self = (FoobarPanelItemWorkspaces*)object;
+
+	g_clear_signal_handler( &self->monitor_configuration_handler_id, self->workspace_service );
+	g_clear_object( &self->workspace_service );
+	g_clear_object( &self->monitor_filter );
+
+	G_OBJECT_CLASS( foobar_panel_item_workspaces_parent_class )->finalize( object );
+}
+
+
+// ---------------------------------------------------------------------------------------------------------------------
+// Public API
+// ---------------------------------------------------------------------------------------------------------------------
+
+//
+// Create a new workspaces panel item with the given configuration.
+//
+// If monitor is not NULL, only workspaces on this monitor will be shown.
+//
+FoobarPanelItem* foobar_panel_item_workspaces_new(
+	FoobarPanelItemConfiguration const* config,
+	GdkMonitor*                         monitor,
+	FoobarWorkspaceService*             workspace_service )
+{
+	g_return_val_if_fail( config != NULL, NULL );
+	g_return_val_if_fail( foobar_panel_item_configuration_get_kind( config ) == FOOBAR_PANEL_ITEM_KIND_WORKSPACES, NULL );
+	g_return_val_if_fail( monitor == NULL || GDK_IS_MONITOR( monitor ), NULL );
+	g_return_val_if_fail( FOOBAR_IS_WORKSPACE_SERVICE( workspace_service ), NULL );
+
+	FoobarPanelItemWorkspaces* self = g_object_new( FOOBAR_TYPE_PANEL_ITEM_WORKSPACES, NULL );
+	self->button_size = foobar_panel_item_workspaces_configuration_get_button_size( config );
+	self->spacing = foobar_panel_item_workspaces_configuration_get_spacing( config );
+	self->workspace_service = g_object_ref( workspace_service );
+
+	// Set up the source model, optionally enabling filtering.
+
+	GListModel* source_model = g_object_ref( foobar_workspace_service_get_workspaces( self->workspace_service ) );
+	if ( monitor )
+	{
+		GtkCustomFilter* filter = gtk_custom_filter_new(
+			foobar_panel_item_workspaces_monitor_filter_func,
+			g_object_ref( monitor ),
+			g_object_unref );
+		self->monitor_filter = GTK_FILTER( filter );
+		source_model = G_LIST_MODEL( gtk_filter_list_model_new( source_model, g_object_ref( self->monitor_filter ) ) );
+
+		self->monitor_configuration_handler_id = g_signal_connect(
+			self->workspace_service,
+			"monitor-configuration-changed",
+			G_CALLBACK( foobar_panel_item_workspaces_handle_monitor_configuration_changed ),
+			self );
+	}
+	GtkNoSelection* selection_model = gtk_no_selection_new( source_model );
+	gtk_list_view_set_model( GTK_LIST_VIEW( self->list_view ), GTK_SELECTION_MODEL( selection_model ) );
+
+	// Wrap the list in an inset container to remove the outer margin from the items.
+
+	foobar_inset_container_set_inset_horizontal( FOOBAR_INSET_CONTAINER( self->inset_container ), -self->spacing / 2 );
+	foobar_inset_container_set_inset_vertical( FOOBAR_INSET_CONTAINER( self->inset_container ), -self->spacing / 2 );
+
+	return FOOBAR_PANEL_ITEM( self );
+}
+
+// ---------------------------------------------------------------------------------------------------------------------
+// Signal Handlers
+// ---------------------------------------------------------------------------------------------------------------------
+
+//
+// Called by the list view to create a widget for displaying a workspace.
+//
+void foobar_panel_item_workspaces_handle_item_setup(
+	GtkListItemFactory* factory,
+	GtkListItem*        list_item,
+	gpointer            userdata )
+{
+	(void)factory;
+	FoobarPanelItemWorkspaces* self = (FoobarPanelItemWorkspaces*)userdata;
+
+	GtkWidget* button = gtk_button_new( );
+	gtk_widget_set_size_request( button, self->button_size, self->button_size );
+	gtk_widget_set_margin_top( button, self->spacing / 2 );
+	gtk_widget_set_margin_bottom( button, self->spacing / 2 );
+	gtk_widget_set_margin_start( button, self->spacing / 2 );
+	gtk_widget_set_margin_end( button, self->spacing / 2 );
+	g_signal_connect(
+		button,
+		"clicked",
+		G_CALLBACK( foobar_panel_item_workspaces_handle_item_clicked ),
+		list_item );
+
+	gtk_list_item_set_child( list_item, button );
+
+	{
+		GtkExpression* item_expr = gtk_property_expression_new( GTK_TYPE_LIST_ITEM, NULL, "item" );
+		GtkExpression* active_expr = gtk_property_expression_new( FOOBAR_TYPE_WORKSPACE, item_expr, "flags" );
+		GtkExpression* params[] = { active_expr };
+		GtkExpression* css_expr = gtk_cclosure_expression_new(
+			G_TYPE_STRV,
+			NULL,
+			G_N_ELEMENTS( params ),
+			params,
+			G_CALLBACK( foobar_panel_item_workspaces_compute_css_classes ),
+			NULL,
+			NULL );
+		gtk_expression_bind( css_expr, button, "css-classes", list_item );
+	}
+}
+
+//
+// Called by the workspace service when the monitor for any workspace has changed.
+//
+// This is needed because the GtkFilterListModel does not track changes to the item properties and needs to be
+// re-evaluated manually.
+//
+void foobar_panel_item_workspaces_handle_monitor_configuration_changed(
+	FoobarWorkspaceService* service,
+	gpointer                userdata )
+{
+	(void)service;
+	FoobarPanelItemWorkspaces* self = (FoobarPanelItemWorkspaces*)userdata;
+
+	gtk_filter_changed( self->monitor_filter, GTK_FILTER_CHANGE_DIFFERENT );
+}
+
+//
+// Called when a workspace button was clicked, activating that workspace.
+//
+void foobar_panel_item_workspaces_handle_item_clicked( GtkButton* button, gpointer userdata )
+{
+	(void)button;
+	GtkListItem* item = (GtkListItem*)userdata;
+
+	FoobarWorkspace* workspace = gtk_list_item_get_item( item );
+	if ( workspace ) { foobar_workspace_activate( workspace ); }
+}
+
+// ---------------------------------------------------------------------------------------------------------------------
+// Value Converters
+// ---------------------------------------------------------------------------------------------------------------------
+
+//
+// Derive the list of CSS classes for a workspace button from the workspace's current flags.
+//
+gchar** foobar_panel_item_workspaces_compute_css_classes(
+	GtkExpression*       expression,
+	FoobarWorkspaceFlags flags,
+	gpointer             userdata )
+{
+	(void)expression;
+	(void)userdata;
+
+	GStrvBuilder* builder = g_strv_builder_new( );
+	if ( flags & FOOBAR_WORKSPACE_FLAGS_ACTIVE ) { g_strv_builder_add( builder, "active" ); }
+	if ( flags & FOOBAR_WORKSPACE_FLAGS_VISIBLE ) { g_strv_builder_add( builder, "visible" ); }
+	if ( flags & FOOBAR_WORKSPACE_FLAGS_SPECIAL ) { g_strv_builder_add( builder, "special" ); }
+	if ( flags & FOOBAR_WORKSPACE_FLAGS_URGENT ) { g_strv_builder_add( builder, "urgent" ); }
+	if ( flags & FOOBAR_WORKSPACE_FLAGS_PERSISTENT ) { g_strv_builder_add( builder, "persistent" ); }
+	return g_strv_builder_end( builder );
+}
+
+// ---------------------------------------------------------------------------------------------------------------------
+// Helper Methods
+// ---------------------------------------------------------------------------------------------------------------------
+
+//
+// Check if a workspace is on the panel's monitor.
+//
+gboolean foobar_panel_item_workspaces_monitor_filter_func( gpointer item, gpointer userdata )
+{
+	FoobarWorkspace* workspace = (FoobarWorkspace*)item;
+	GdkMonitor* monitor = (GdkMonitor*)userdata;
+
+	gchar const* expected = gdk_monitor_get_connector( monitor );
+	gchar const* actual = foobar_workspace_get_monitor( workspace );
+	return !expected || !g_strcmp0( expected, actual );
+}