talons

commit 48d3a5452c526c332c71a0580ca87f2a1aeb8540
parent ebb4127098911debb0ca42fee34e89c3e3a19e61
Author: Colin Leroy <colin@colino.net>
Date:   Sun, 10 Nov 2019 20:55:11 +0100

LiteHtml viewer: implement keyboard scroll

Diffstat:
M
src/plugins/litehtml_viewer/lh_viewer.c
 | 
28
++++++++++++++++++++++++++++

1 file changed, 28 insertions(+), 0 deletions(-)
diff --git a/src/plugins/litehtml_viewer/lh_viewer.c b/src/plugins/litehtml_viewer/lh_viewer.c
@@ -140,6 +140,31 @@ static void lh_print_viewer (MimeViewer *_viewer)
     lh_widget_print(viewer->widget);    
 }
 
+
+static gboolean lh_scroll_page(MimeViewer *_viewer, gboolean up)
+{
+	LHViewer *viewer = (LHViewer *)_viewer;
+	GtkAdjustment *vadj = gtk_scrolled_window_get_vadjustment(
+					GTK_SCROLLED_WINDOW(lh_widget_get_widget(viewer->widget)));
+
+	if (viewer->widget == NULL)
+		return FALSE;
+
+	return gtkutils_scroll_page(lh_widget_get_widget(viewer->widget), vadj, up);
+}
+
+static void lh_scroll_one_line(MimeViewer *_viewer, gboolean up)
+{
+	LHViewer *viewer = (LHViewer *)_viewer;
+	GtkAdjustment *vadj = gtk_scrolled_window_get_vadjustment(
+					GTK_SCROLLED_WINDOW(lh_widget_get_widget(viewer->widget)));
+
+	if (viewer->widget == NULL)
+		return;
+
+	gtkutils_scroll_one_line(lh_widget_get_widget(viewer->widget), vadj, up);
+}
+
 /***************************************************************/
 MimeViewer *lh_viewer_create()
 {
@@ -155,6 +180,9 @@ MimeViewer *lh_viewer_create()
 	viewer->mimeviewer.clear_viewer = lh_clear_viewer;
 	viewer->mimeviewer.destroy_viewer = lh_destroy_viewer;
 
+	viewer->mimeviewer.scroll_page = lh_scroll_page;
+	viewer->mimeviewer.scroll_one_line = lh_scroll_one_line;
+
 	viewer->vbox = gtk_vbox_new(FALSE, 0);
 
 	GtkWidget *w = lh_widget_get_widget(viewer->widget);