Commit bbb9fc1f authored by Richard M. Stallman's avatar Richard M. Stallman
Browse files

(redisplay_window): Run Qwindow_text_change_functions and

jump back to beginning.  Move some other initializations after that.
(Qwindow_text_change_functions, (Vwindow_text_change_functions): New variables.
(syms_of_xdisp): Init them.
parent 94f9b406
2008-01-25 Richard Stallman <>
* xdisp.c (redisplay_window): Run Qwindow_text_change_functions and
jump back to beginning. Move some other initializations after that.
(Qwindow_text_change_functions, Vwindow_text_change_functions):
New variables.
(syms_of_xdisp): Init them.
* keyboard.c (read_char): Restore echo_message_buffer after redisplay.
* buffer.c (reset_buffer_local_variables): Implement
(Qpermanent_local_hook): New variable.
(syms_of_buffer): init and staticpro it.
2008-01-25 Michael Albinus <>
* dbusbind.c (xd_retrieve_arg): Pacify GCC on x86_64 GNU/Linux.
......@@ -232,6 +232,7 @@ extern Lisp_Object Qhelp_echo;
Lisp_Object Qoverriding_local_map, Qoverriding_terminal_local_map;
Lisp_Object Qwindow_scroll_functions, Vwindow_scroll_functions;
Lisp_Object Qwindow_text_change_functions, Vwindow_text_change_functions;
Lisp_Object Qredisplay_end_trigger_functions, Vredisplay_end_trigger_functions;
Lisp_Object Qinhibit_point_motion_hooks;
Lisp_Object QCeval, QCfile, QCdata, QCpropertize;
......@@ -12884,8 +12885,7 @@ redisplay_window (window, just_this_one_p)
*w->desired_matrix->method = 0;
specbind (Qinhibit_point_motion_hooks, Qt);
reconsider_clip_changes (w, buffer);
/* Has the mode line to be updated? */
......@@ -12936,10 +12936,6 @@ redisplay_window (window, just_this_one_p)
/* Really select the buffer, for the sake of buffer-local
variables. */
set_buffer_internal_1 (XBUFFER (w->buffer));
beg_unchanged = BEG_UNCHANGED;
end_unchanged = END_UNCHANGED;
= (!NILP (w->window_end_valid)
......@@ -12948,6 +12944,23 @@ redisplay_window (window, just_this_one_p)
&& XFASTINT (w->last_modified) >= MODIFF
&& XFASTINT (w->last_overlay_modified) >= OVERLAY_MODIFF);
/* Run the window-bottom-change-functions
if it is possible that the text on the screen has changed
(either due to modification of the text, or any other reason). */
if (!current_matrix_up_to_date_p
&& !NILP (Vwindow_text_change_functions))
safe_run_hooks (Qwindow_text_change_functions);
goto restart;
beg_unchanged = BEG_UNCHANGED;
end_unchanged = END_UNCHANGED;
specbind (Qinhibit_point_motion_hooks, Qt);
= (!NILP (w->window_end_valid)
&& !current_buffer->clip_changed
......@@ -23962,6 +23975,9 @@ syms_of_xdisp ()
staticpro (&Qwindow_scroll_functions);
Qwindow_scroll_functions = intern ("window-scroll-functions");
staticpro (&Qwindow_text_change_functions);
Qwindow_text_change_functions = intern ("window-text-change-functions");
staticpro (&Qredisplay_end_trigger_functions);
Qredisplay_end_trigger_functions = intern ("redisplay-end-trigger-functions");
......@@ -24273,6 +24289,11 @@ and its new display-start position. Note that the value of `window-end'
is not valid when these functions are called. */);
Vwindow_scroll_functions = Qnil;
DEFVAR_LISP ("window-text-change-functions",
doc: /* Functions to call in redisplay when text in the window might change. */);
Vwindow_text_change_functions = Qnil;
DEFVAR_LISP ("redisplay-end-trigger-functions", &Vredisplay_end_trigger_functions,
doc: /* Functions called when redisplay of a window reaches the end trigger.
Each function is called with two arguments, the window and the end trigger value.
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