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linkbutton: Port to GtkDragSource

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This commit is contained in:
Matthias Clasen 2019-12-30 22:34:50 -05:00
parent 2612331282
commit d145032cb6
1 changed files with 77 additions and 36 deletions
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113
gtk/gtklinkbutton.c
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@ -124,10 +124,6 @@ static void gtk_link_button_set_property (GObject *object,
GParamSpec *pspec);
static void gtk_link_button_clicked (GtkButton *button);
static gboolean gtk_link_button_popup_menu (GtkWidget *widget);
static void gtk_link_button_drag_data_get_cb (GtkWidget *widget,
GdkDrag *drag,
GtkSelectionData *selection,
gpointer user_data);
static gboolean gtk_link_button_query_tooltip_cb (GtkWidget *widget,
gint x,
gint y,
@ -251,31 +247,96 @@ gtk_link_button_get_menu_model (void)
return G_MENU_MODEL (menu);
}
#define GTK_TYPE_LINK_CONTENT (gtk_link_content_get_type ())
#define GTK_LINK_CONTENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_LINK_CONTENT, GtkLinkContent))
typedef struct _GtkLinkContent GtkLinkContent;
typedef struct _GtkLinkContentClass GtkLinkContentClass;
struct _GtkLinkContent
{
GdkContentProvider parent;
GtkLinkButton *link;
};
struct _GtkLinkContentClass
{
GdkContentProviderClass parent_class;
};
GType gtk_link_content_get_type (void) G_GNUC_CONST;
G_DEFINE_TYPE (GtkLinkContent, gtk_link_content, GDK_TYPE_CONTENT_PROVIDER)
static GdkContentFormats *
gtk_link_content_ref_formats (GdkContentProvider *provider)
{
GtkLinkContent *content = GTK_LINK_CONTENT (provider);
if (content->link)
return gdk_content_formats_union (gdk_content_formats_new_for_gtype (G_TYPE_STRING),
gdk_content_formats_new (link_drop_types, G_N_ELEMENTS (link_drop_types)));
else
return gdk_content_formats_new (NULL, 0);
}
static gboolean
gtk_link_content_get_value (GdkContentProvider *provider,
GValue *value,
GError **error)
{
GtkLinkContent *content = GTK_LINK_CONTENT (provider);
if (G_VALUE_HOLDS (value, G_TYPE_STRING) &&
content->link != NULL)
{
GtkLinkButtonPrivate *priv = gtk_link_button_get_instance_private (content->link);
char *uri;
uri = g_strdup_printf ("%s\r\n", priv->uri);
g_value_set_string (value, uri);
g_free (uri);
return TRUE;
}
return GDK_CONTENT_PROVIDER_CLASS (gtk_link_content_parent_class)->get_value (provider, value, error);
}
static void
gtk_link_content_class_init (GtkLinkContentClass *class)
{
GdkContentProviderClass *provider_class = GDK_CONTENT_PROVIDER_CLASS (class);
provider_class->ref_formats = gtk_link_content_ref_formats;
provider_class->get_value = gtk_link_content_get_value;
}
static void
gtk_link_content_init (GtkLinkContent *content)
{
}
static void
gtk_link_button_init (GtkLinkButton *link_button)
{
GtkStyleContext *context;
GdkContentFormats *targets;
GtkGesture *gesture;
GdkContentProvider *content;
GtkDragSource *source;
gtk_button_set_relief (GTK_BUTTON (link_button), GTK_RELIEF_NONE);
gtk_widget_set_state_flags (GTK_WIDGET (link_button), GTK_STATE_FLAG_LINK, FALSE);
gtk_widget_set_has_tooltip (GTK_WIDGET (link_button), TRUE);
g_signal_connect (link_button, "drag-data-get",
G_CALLBACK (gtk_link_button_drag_data_get_cb), NULL);
g_signal_connect (link_button, "query-tooltip",
G_CALLBACK (gtk_link_button_query_tooltip_cb), NULL);
/* enable drag source */
targets = gdk_content_formats_new (link_drop_types, G_N_ELEMENTS (link_drop_types));
gtk_drag_source_set (GTK_WIDGET (link_button),
GDK_BUTTON1_MASK,
targets,
GDK_ACTION_COPY);
gdk_content_formats_unref (targets);
gtk_drag_source_set_icon_name (GTK_WIDGET (link_button), "text-x-generic");
content = g_object_new (GTK_TYPE_LINK_CONTENT, NULL);
GTK_LINK_CONTENT (content)->link = link_button;
source = gtk_drag_source_new (content, GDK_ACTION_COPY);
g_object_unref (content);
gtk_drag_source_attach (source, GTK_WIDGET (link_button), GDK_BUTTON1_MASK);
gesture = gtk_gesture_click_new ();
gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (gesture), FALSE);
@ -449,26 +510,6 @@ gtk_link_button_popup_menu (GtkWidget *widget)
return TRUE;
}
static void
gtk_link_button_drag_data_get_cb (GtkWidget *widget,
GdkDrag *drag,
GtkSelectionData *selection,
gpointer user_data)
{
GtkLinkButton *link_button = GTK_LINK_BUTTON (widget);
GtkLinkButtonPrivate *priv = gtk_link_button_get_instance_private (link_button);
gchar *uri;
uri = g_strdup_printf ("%s\r\n", priv->uri);
gtk_selection_data_set (selection,
gtk_selection_data_get_target (selection),
8,
(guchar *) uri,
strlen (uri));
g_free (uri);
}
/**
* gtk_link_button_new:
* @uri: a valid URI