Support for the new Xwidget feature.

* configure.ac:
(HAVE_XWIDGETS, WIDGET_OBJ, EMACS_CONFIG_FEATURES):
* xterm.c (x_draw_glyph_string, x_draw_bar_cursor):
* xdisp.c:
(handle_display_spec, handle_single_display_spec, push_it)
(pop_it, set_iterator_to_next, dump_glyph)
(calc_pixel_width_or_height, fill_xwidget_glyph_string)
(BUILD_XWIDGET_GLYPH_STRING, BUILD_GLYPH_STRINGS)
(produce_xwidget_glyph, x_produce_glyphs)
(get_window_cursor_type):
* window.c (Fdelete_window_internal):
* termhooks.h (e):
* print.c (print_object):
* lisp.h (ptrdiff_t):
* keyboard.c (kbd_buffer_get_event, make_lispy_event)
(syms_of_keyboard):
* emacs.c (main):
* dispnew.c (update_window, scrolling_window):
* dispextern.h (g, i):
* Makefile.in (XWIDGETS_OBJ, WEBKIT_CFLAGS, WEBKIT_LIBS)
(GIR_LIBS, ALL_CFLAGS, base_obj, LIBES):
* keyboard.c (kbd_buffer_get_event):
* emacsgtkfixed.c (emacs_fixed_gtk_widget_size_allocate)
(emacs_fixed_class_init): Add case for an xwidget view.

* xwidget.c, xwidget.h, xwidget.el: New files for xwidgets

Co-authored-by:  Grégoire Jadi  <daimrod@gmail.com>

Various improvements to the Xwidget feature.
* xwidgets.c:
* emacsgtkfixed.c:
* xwidget.el:

1 files changed, 14 insertions, 0 deletions

diff --git a/src/xterm.c b/src/xterm.c
index 5a6d643bad4..44eed22d2ec 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -62,6 +62,9 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include "composite.h"
 #include "frame.h"
 #include "dispextern.h"
+#ifdef HAVE_XWIDGETS
+# include "xwidget.h"
+#endif
 #include "fontset.h"
 #include "termhooks.h"
 #include "termopts.h"
@@ -3511,6 +3514,12 @@ x_draw_glyph_string (struct glyph_string *s)
       x_draw_image_glyph_string (s);
       break;
 
+#ifdef HAVE_XWIDGETS
+    case XWIDGET_GLYPH:
+      x_draw_xwidget_glyph_string (s);
+      break;
+#endif
+
     case STRETCH_GLYPH:
       x_draw_stretch_glyph_string (s);
       break;
@@ -8920,6 +8929,11 @@ x_draw_bar_cursor (struct window *w, struct glyph_row *row, int width, enum text
   if (cursor_glyph == NULL)
     return;
 
+#ifdef HAVE_XWIDGETS
+  if (cursor_glyph->type == XWIDGET_GLYPH)
+    return; // Experimental avoidance of cursor on xwidget.
+#endif
+
   /* If on an image, draw like a normal cursor.  That's usually better
      visible than drawing a bar, esp. if the image is large so that
      the bar might not be in the window.  */