/* Input event support for Emacs on the Microsoft Windows API.
- Copyright (C) 1992-1993, 1995, 2001-2012 Free Software Foundation, Inc.
+ Copyright (C) 1992-1993, 1995, 2001-2014 Free Software Foundation,
+ Inc.
This file is part of GNU Emacs.
#ifndef MOUSE_MOVED
#define MOUSE_MOVED 1
#endif
+#ifndef MOUSE_HWHEELED
+#define MOUSE_HWHEELED 8
+#endif
#include "lisp.h"
#include "keyboard.h"
}
/* In a generic, multi-frame world this should take a console handle
- and return the frame for it
+ and return the frame for it.
Right now, there's only one frame so return it. */
-static FRAME_PTR
+static struct frame *
get_frame (void)
{
return SELECTED_FRAME ();
/* Mouse position hook. */
void
-w32_console_mouse_position (FRAME_PTR *f,
+w32_console_mouse_position (struct frame **f,
int insist,
Lisp_Object *bar_window,
enum scroll_bar_part *part,
next - Leftmost+1
next - Leftmost+2...
- Assume emacs likes three button mice, so
+ For the 3 standard buttons, we have:
Left == 0
Middle == 1
Right == 2
Others increase from there. */
-#define NUM_TRANSLATED_MOUSE_BUTTONS 3
+#define NUM_TRANSLATED_MOUSE_BUTTONS 5
static int emacs_button_translation[NUM_TRANSLATED_MOUSE_BUTTONS] =
{
- 0, 2, 1
+ 0, 2, 1, 3, 4
};
static int
{
static DWORD button_state = 0;
static Lisp_Object last_mouse_window;
- DWORD but_change, mask;
+ DWORD but_change, mask, flags = event->dwEventFlags;
int i;
- if (event->dwEventFlags == MOUSE_MOVED)
+ switch (flags)
{
- FRAME_PTR f = SELECTED_FRAME ();
- Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
- int mx = event->dwMousePosition.X, my = event->dwMousePosition.Y;
-
- mouse_moved_to (mx, my);
-
- if (f->mouse_moved)
- {
- if (hlinfo->mouse_face_hidden)
- {
- hlinfo->mouse_face_hidden = 0;
- clear_mouse_face (hlinfo);
- }
-
- /* Generate SELECT_WINDOW_EVENTs when needed. */
- if (!NILP (Vmouse_autoselect_window))
- {
- Lisp_Object mouse_window = window_from_coordinates (f, mx, my,
- 0, 0);
- /* A window will be selected only when it is not
- selected now, and the last mouse movement event was
- not in it. A minibuffer window will be selected iff
- it is active. */
- if (WINDOWP (mouse_window)
- && !EQ (mouse_window, last_mouse_window)
- && !EQ (mouse_window, selected_window))
- {
- struct input_event event;
-
- EVENT_INIT (event);
- event.kind = SELECT_WINDOW_EVENT;
- event.frame_or_window = mouse_window;
- event.arg = Qnil;
- event.timestamp = movement_time;
- kbd_buffer_store_event (&event);
- }
- last_mouse_window = mouse_window;
- }
- else
- last_mouse_window = Qnil;
-
- previous_help_echo_string = help_echo_string;
- help_echo_string = help_echo_object = help_echo_window = Qnil;
- help_echo_pos = -1;
- note_mouse_highlight (f, mx, my);
- /* If the contents of the global variable help_echo has
- changed (inside note_mouse_highlight), generate a HELP_EVENT. */
- if (!NILP (help_echo_string) || !NILP (previous_help_echo_string))
- gen_help_event (help_echo_string, selected_frame, help_echo_window,
- help_echo_object, help_echo_pos);
- }
- return 0;
- }
-
- /* It looks like the console code sends us a mouse event with
- dwButtonState == 0 when a window is activated. Ignore this case. */
- if (event->dwButtonState == button_state)
- return 0;
-
- emacs_ev->kind = MOUSE_CLICK_EVENT;
-
- /* Find out what button has changed state since the last button event. */
- but_change = button_state ^ event->dwButtonState;
- mask = 1;
- for (i = 0; mask; i++, mask <<= 1)
- if (but_change & mask)
+ case MOUSE_MOVED:
{
- if (i < NUM_TRANSLATED_MOUSE_BUTTONS)
- emacs_ev->code = emacs_button_translation[i];
- else
- emacs_ev->code = i;
- break;
+ struct frame *f = get_frame ();
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
+ int mx = event->dwMousePosition.X, my = event->dwMousePosition.Y;
+
+ mouse_moved_to (mx, my);
+
+ if (f->mouse_moved)
+ {
+ if (hlinfo->mouse_face_hidden)
+ {
+ hlinfo->mouse_face_hidden = 0;
+ clear_mouse_face (hlinfo);
+ }
+
+ /* Generate SELECT_WINDOW_EVENTs when needed. */
+ if (!NILP (Vmouse_autoselect_window))
+ {
+ Lisp_Object mouse_window = window_from_coordinates (f, mx, my,
+ 0, 0);
+ /* A window will be selected only when it is not
+ selected now, and the last mouse movement event was
+ not in it. A minibuffer window will be selected iff
+ it is active. */
+ if (WINDOWP (mouse_window)
+ && !EQ (mouse_window, last_mouse_window)
+ && !EQ (mouse_window, selected_window))
+ {
+ struct input_event event;
+
+ EVENT_INIT (event);
+ event.kind = SELECT_WINDOW_EVENT;
+ event.frame_or_window = mouse_window;
+ event.arg = Qnil;
+ event.timestamp = movement_time;
+ kbd_buffer_store_event (&event);
+ }
+ last_mouse_window = mouse_window;
+ }
+ else
+ last_mouse_window = Qnil;
+
+ previous_help_echo_string = help_echo_string;
+ help_echo_string = help_echo_object = help_echo_window = Qnil;
+ help_echo_pos = -1;
+ note_mouse_highlight (f, mx, my);
+ /* If the contents of the global variable help_echo has
+ changed (inside note_mouse_highlight), generate a HELP_EVENT. */
+ if (!NILP (help_echo_string) || !NILP (previous_help_echo_string))
+ gen_help_event (help_echo_string, selected_frame,
+ help_echo_window, help_echo_object,
+ help_echo_pos);
+ }
+ /* We already called kbd_buffer_store_event, so indicate the
+ the caller it shouldn't. */
+ return 0;
}
+ case MOUSE_WHEELED:
+ case MOUSE_HWHEELED:
+ {
+ struct frame *f = get_frame ();
+ int mx = event->dwMousePosition.X, my = event->dwMousePosition.Y;
+ bool down_p = (event->dwButtonState & 0x10000000) != 0;
+
+ emacs_ev->kind =
+ flags == MOUSE_HWHEELED ? HORIZ_WHEEL_EVENT : WHEEL_EVENT;
+ emacs_ev->code = 0;
+ emacs_ev->modifiers = down_p ? down_modifier : up_modifier;
+ emacs_ev->modifiers |=
+ w32_kbd_mods_to_emacs (event->dwControlKeyState, 0);
+ XSETINT (emacs_ev->x, mx);
+ XSETINT (emacs_ev->y, my);
+ XSETFRAME (emacs_ev->frame_or_window, f);
+ emacs_ev->arg = Qnil;
+ emacs_ev->timestamp = GetTickCount ();
+ return 1;
+ }
+ case DOUBLE_CLICK:
+ default: /* mouse pressed or released */
+ /* It looks like the console code sends us a button-release
+ mouse event with dwButtonState == 0 when a window is
+ activated and when the mouse is first clicked. Ignore this
+ case. */
+ if (event->dwButtonState == button_state)
+ return 0;
- button_state = event->dwButtonState;
- emacs_ev->timestamp = GetTickCount ();
- emacs_ev->modifiers = w32_kbd_mods_to_emacs (event->dwControlKeyState, 0) |
- ((event->dwButtonState & mask) ? down_modifier : up_modifier);
-
- XSETFASTINT (emacs_ev->x, event->dwMousePosition.X);
- XSETFASTINT (emacs_ev->y, event->dwMousePosition.Y);
-/* for Mule 2.2 (Based on Emacs 19.28 */
-#ifdef MULE
- XSET (emacs_ev->frame_or_window, Lisp_Frame, get_frame ());
-#else
- XSETFRAME (emacs_ev->frame_or_window, get_frame ());
-#endif
-
- return 1;
+ emacs_ev->kind = MOUSE_CLICK_EVENT;
+
+ /* Find out what button has changed state since the last button
+ event. */
+ but_change = button_state ^ event->dwButtonState;
+ mask = 1;
+ for (i = 0; mask; i++, mask <<= 1)
+ if (but_change & mask)
+ {
+ if (i < NUM_TRANSLATED_MOUSE_BUTTONS)
+ emacs_ev->code = emacs_button_translation[i];
+ else
+ emacs_ev->code = i;
+ break;
+ }
+
+ button_state = event->dwButtonState;
+ emacs_ev->modifiers =
+ w32_kbd_mods_to_emacs (event->dwControlKeyState, 0)
+ | ((event->dwButtonState & mask) ? down_modifier : up_modifier);
+
+ XSETFASTINT (emacs_ev->x, event->dwMousePosition.X);
+ XSETFASTINT (emacs_ev->y, event->dwMousePosition.Y);
+ XSETFRAME (emacs_ev->frame_or_window, get_frame ());
+ emacs_ev->arg = Qnil;
+ emacs_ev->timestamp = GetTickCount ();
+
+ return 1;
+ }
}
static void
resize_event (WINDOW_BUFFER_SIZE_RECORD *event)
{
- FRAME_PTR f = get_frame ();
+ struct frame *f = get_frame ();
- change_frame_size (f, event->dwSize.Y, event->dwSize.X, 0, 1, 0);
+ change_frame_size (f, event->dwSize.X, event->dwSize.Y, 0, 1, 0, 0);
SET_FRAME_GARBAGED (f);
}
maybe_generate_resize_event (void)
{
CONSOLE_SCREEN_BUFFER_INFO info;
- FRAME_PTR f = get_frame ();
+ struct frame *f = get_frame ();
GetConsoleScreenBufferInfo (GetStdHandle (STD_OUTPUT_HANDLE), &info);
/* It is okay to call this unconditionally, since it will do nothing
if the size hasn't actually changed. */
change_frame_size (f,
- 1 + info.srWindow.Bottom - info.srWindow.Top,
1 + info.srWindow.Right - info.srWindow.Left,
- 0, 0, 0);
+ 1 + info.srWindow.Bottom - info.srWindow.Top,
+ 0, 0, 0, 0);
}
-static void
+#if HAVE_W32NOTIFY
+int
handle_file_notifications (struct input_event *hold_quit)
{
BYTE *p = file_notifications;
const DWORD min_size
= offsetof (FILE_NOTIFY_INFORMATION, FileName) + sizeof(wchar_t);
struct input_event inev;
+ int nevents = 0;
/* We cannot process notification before Emacs is fully initialized,
since we need the UTF-16LE coding-system to be set up. */
if (!initialized)
{
notification_buffer_in_use = 0;
- return;
+ return nevents;
}
enter_crit ();
if (notification_buffer_in_use)
{
DWORD info_size = notifications_size;
+ Lisp_Object cs = intern ("utf-16le");
+ Lisp_Object obj = w32_get_watch_object (notifications_desc);
/* notifications_size could be zero when the buffer of
notifications overflowed on the OS level, or when the
directory being watched was itself deleted. Do nothing in
that case. */
- if (info_size)
+ if (info_size
+ && !NILP (obj) && CONSP (obj))
{
+ Lisp_Object callback = XCDR (obj);
+
EVENT_INIT (inev);
while (info_size >= min_size)
/* Note: mule-conf is preloaded, so utf-16le must
already be defined at this point. */
Lisp_Object fname
- = code_convert_string_norecord (utf_16_fn,
- intern ("utf-16le"), 0);
+ = code_convert_string_norecord (utf_16_fn, cs, 0);
Lisp_Object action = lispy_file_action (fni->Action);
- Lisp_Object obj;
- obj = get_watch_object (make_number (notifications_desc));
- if (!NILP (obj) && CONSP (obj))
- {
- inev.kind = FILE_NOTIFY_EVENT;
- inev.code = (ptrdiff_t)notifications_desc;
- inev.timestamp = GetTickCount ();
- inev.modifiers = 0;
- inev.frame_or_window = XCDR (obj);
- inev.arg = Fcons (action, fname);
- kbd_buffer_store_event_hold (&inev, hold_quit);
- }
+ inev.kind = FILE_NOTIFY_EVENT;
+ inev.code = (ptrdiff_t)XINT (XIL ((EMACS_INT)notifications_desc));
+ inev.timestamp = GetTickCount ();
+ inev.modifiers = 0;
+ inev.frame_or_window = callback;
+ inev.arg = Fcons (action, fname);
+ kbd_buffer_store_event_hold (&inev, hold_quit);
if (!fni->NextEntryOffset)
break;
notification_buffer_in_use = 0;
}
leave_crit ();
+ return nevents;
}
+#else /* !HAVE_W32NOTIFY */
+int
+handle_file_notifications (struct input_event *hold_quit)
+{
+ return 0;
+}
+#endif /* !HAVE_W32NOTIFY */
+
+/* Here's an overview of how Emacs input works in non-GUI sessions on
+ MS-Windows. (For description of the GUI input, see the commentary
+ before w32_msg_pump in w32fns.c.)
+
+ When Emacs is idle, it loops inside wait_reading_process_output,
+ calling pselect periodically to check whether any input is
+ available. On Windows, pselect is redirected to sys_select, which
+ uses MsgWaitForMultipleObjects to wait for input, either from the
+ keyboard or from any of the Emacs subprocesses. In addition,
+ MsgWaitForMultipleObjects wakes up when some Windows message is
+ posted to the input queue of the Emacs's main thread (which is the
+ thread in which sys_select runs).
+
+ When the Emacs's console window has focus, Windows sends input
+ events that originate from the keyboard or the mouse; these events
+ wake up MsgWaitForMultipleObjects, which reports that input is
+ available. Emacs then calls w32_console_read_socket, below, to
+ read the input. w32_console_read_socket uses
+ GetNumberOfConsoleInputEvents and ReadConsoleInput to peek at and
+ read the console input events.
+
+ One type of non-keyboard input event that gets reported as input
+ available is due to the Emacs's console window receiving focus.
+ When that happens, Emacs gets the FOCUS_EVENT event and sys_select
+ reports some input; however, w32_console_read_socket ignores such
+ events when called to read them.
+
+ Note that any other Windows message sent to the main thread will
+ also wake up MsgWaitForMultipleObjects. These messages get
+ immediately dispatched to their destinations by calling
+ drain_message_queue. */
int
w32_console_read_socket (struct terminal *terminal,
for (;;)
{
- handle_file_notifications (hold_quit);
+ int nfnotify = handle_file_notifications (hold_quit);
+
nev = fill_queue (0);
if (nev <= 0)
{
/* If nev == -1, there was some kind of error
- If nev == 0 then waitp must be zero and no events were available
+ If nev == 0 then no events were available
so return. */
+ if (nfnotify)
+ nev = 0;
break;
}
while (nev > 0)
{
struct input_event inev;
+ /* Having a separate variable with this value makes
+ debugging easier, as otherwise the compiler might
+ rearrange the switch below in a way that makes it hard to
+ track the event type. */
+ unsigned evtype = queue_ptr->EventType;
EVENT_INIT (inev);
inev.kind = NO_EVENT;
inev.arg = Qnil;
- switch (queue_ptr->EventType)
+ switch (evtype)
{
case KEY_EVENT:
add = key_event (&queue_ptr->Event.KeyEvent, &inev, &isdead);
HCoop / bpt / emacs.git / blobdiff