2 Editor initialisation and callback handler.
4 Copyright (C) 1996-2016
5 Free Software Foundation, Inc.
9 Andrew Borodin <aborodin@vmail.ru> 2012, 2013
11 This file is part of the Midnight Commander.
13 The Midnight Commander is free software: you can redistribute it
14 and/or modify it under the terms of the GNU General Public License as
15 published by the Free Software Foundation, either version 3 of the License,
16 or (at your option) any later version.
18 The Midnight Commander is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
23 You should have received a copy of the GNU General Public License
24 along with this program. If not, see <http://www.gnu.org/licenses/>.
28 * \brief Source: editor initialisation and callback handler
39 #include <sys/types.h>
42 #include "lib/global.h"
44 #include "lib/tty/tty.h" /* LINES, COLS */
45 #include "lib/tty/key.h" /* is_idle() */
46 #include "lib/tty/color.h" /* tty_setcolor() */
48 #include "lib/strutil.h" /* str_term_trim() */
49 #include "lib/util.h" /* mc_build_filename() */
50 #include "lib/widget.h"
51 #include "lib/mcconfig.h"
52 #include "lib/event.h" /* mc_event_raise() */
54 #include "lib/charsets.h"
57 #include "src/keybind-defaults.h" /* keybind_lookup_keymap_command() */
58 #include "src/setup.h" /* home_dir */
59 #include "src/filemanager/cmd.h" /* view_other_cmd(), save_setup_cmd() */
60 #include "src/learn.h" /* learn_keys() */
61 #include "src/args.h" /* mcedit_arg_t */
63 #include "edit-impl.h"
64 #include "editwidget.h"
69 /*** global variables ****************************************************************************/
71 char *edit_window_state_char
= NULL
;
72 char *edit_window_close_char
= NULL
;
74 /*** file scope macro definitions ****************************************************************/
76 #define WINDOW_MIN_LINES (2 + 2)
77 #define WINDOW_MIN_COLS (2 + LINE_STATE_WIDTH + 2)
79 /*** file scope type declarations ****************************************************************/
81 /*** file scope variables ************************************************************************/
82 static unsigned int edit_dlg_init_refcounter
= 0;
84 /*** file scope functions ************************************************************************/
86 static cb_ret_t
edit_dialog_callback (Widget
* w
, Widget
* sender
, widget_msg_t msg
, int parm
,
89 /* --------------------------------------------------------------------------------------------- */
91 * Init the 'edit' subsystem
97 if (edit_dlg_init_refcounter
== 0)
99 edit_window_state_char
= mc_skin_get ("editor", "window-state-char", "*");
100 edit_window_close_char
= mc_skin_get ("editor", "window-close-char", "X");
107 edit_dlg_init_refcounter
++;
110 /* --------------------------------------------------------------------------------------------- */
112 * Deinit the 'edit' subsystem
116 edit_dlg_deinit (void)
118 if (edit_dlg_init_refcounter
!= 0)
119 edit_dlg_init_refcounter
--;
121 if (edit_dlg_init_refcounter
== 0)
123 g_free (edit_window_state_char
);
124 g_free (edit_window_close_char
);
132 /* --------------------------------------------------------------------------------------------- */
134 * Show info about editor
140 quick_widget_t quick_widgets
[] = {
142 QUICK_LABEL ("MCEdit " VERSION
, NULL
),
143 QUICK_SEPARATOR (TRUE
),
144 QUICK_LABEL (N_("A user friendly text editor\n"
145 "written for the Midnight Commander."), NULL
),
146 QUICK_SEPARATOR (FALSE
),
147 QUICK_LABEL (N_("Copyright (C) 1996-2016 the Free Software Foundation"), NULL
),
148 QUICK_START_BUTTONS (TRUE
, TRUE
),
149 QUICK_BUTTON (N_("&OK"), B_ENTER
, NULL
, NULL
),
154 quick_dialog_t qdlg
= {
156 N_("About"), "[Internal File Editor]",
157 quick_widgets
, NULL
, NULL
160 quick_widgets
[0].pos_flags
= WPOS_KEEP_TOP
| WPOS_CENTER_HORZ
;
161 quick_widgets
[2].pos_flags
= WPOS_KEEP_TOP
| WPOS_CENTER_HORZ
;
162 quick_widgets
[4].pos_flags
= WPOS_KEEP_TOP
| WPOS_CENTER_HORZ
;
164 (void) quick_dialog (&qdlg
);
167 /* --------------------------------------------------------------------------------------------- */
175 ev_help_t event_data
= { NULL
, "[Internal File Editor]" };
176 mc_event_raise (MCEVENT_GROUP_CORE
, "help", &event_data
);
179 /* --------------------------------------------------------------------------------------------- */
181 * Callback for the iteration of objects in the 'editors' array.
182 * Resize the editor window.
184 * @param data probably WEdit object
185 * @param user_data unused
189 edit_dialog_resize_cb (void *data
, void *user_data
)
191 Widget
*w
= WIDGET (data
);
195 if (edit_widget_is_editor (w
) && ((WEdit
*) w
)->fullscreen
)
197 Widget
*wh
= WIDGET (w
->owner
);
199 w
->lines
= wh
->lines
- 2;
204 /* --------------------------------------------------------------------------------------------- */
206 * Restore saved window size.
208 * @param edit editor object
212 edit_restore_size (WEdit
* edit
)
214 Widget
*w
= WIDGET (edit
);
216 edit
->drag_state
= MCEDIT_DRAG_NONE
;
217 w
->mouse
.forced_capture
= FALSE
;
218 widget_set_size (w
, edit
->y_prev
, edit
->x_prev
, edit
->lines_prev
, edit
->cols_prev
);
219 dlg_redraw (w
->owner
);
222 /* --------------------------------------------------------------------------------------------- */
224 * Move window by one row or column in any direction.
226 * @param edit editor object
227 * @param command direction (CK_Up, CK_Down, CK_Left, CK_Right)
231 edit_window_move (WEdit
* edit
, long command
)
233 Widget
*w
= WIDGET (edit
);
234 Widget
*wh
= WIDGET (w
->owner
);
239 if (w
->y
> wh
->y
+ 1) /* menubar */
243 if (w
->y
< wh
->y
+ wh
->lines
- 2) /* buttonbar */
247 if (w
->x
+ w
->cols
> wh
->x
)
251 if (w
->x
< wh
->x
+ wh
->cols
)
258 edit
->force
|= REDRAW_PAGE
;
259 dlg_redraw (w
->owner
);
262 /* --------------------------------------------------------------------------------------------- */
264 * Resize window by one row or column in any direction.
266 * @param edit editor object
267 * @param command direction (CK_Up, CK_Down, CK_Left, CK_Right)
271 edit_window_resize (WEdit
* edit
, long command
)
273 Widget
*w
= WIDGET (edit
);
274 Widget
*wh
= WIDGET (w
->owner
);
279 if (w
->lines
> WINDOW_MIN_LINES
)
283 if (w
->y
+ w
->lines
< wh
->y
+ wh
->lines
- 1) /* buttonbar */
287 if (w
->cols
> WINDOW_MIN_COLS
)
291 if (w
->x
+ w
->cols
< wh
->x
+ wh
->cols
)
298 edit
->force
|= REDRAW_COMPLETELY
;
299 dlg_redraw (w
->owner
);
302 /* --------------------------------------------------------------------------------------------- */
304 * Get hotkey by number.
313 return (n
<= 9) ? '0' + n
: 'a' + n
- 10;
316 /* --------------------------------------------------------------------------------------------- */
319 edit_window_list (const WDialog
* h
)
321 const size_t offset
= 2; /* skip menu and buttonbar */
322 const size_t dlg_num
= g_list_length (h
->widgets
) - offset
;
329 lines
= min ((size_t) (LINES
* 2 / 3), dlg_num
);
332 listbox
= create_listbox_window (lines
, cols
, _("Open files"), "[Open files]");
334 for (w
= h
->widgets
; w
!= NULL
; w
= g_list_next (w
))
335 if (edit_widget_is_editor (CONST_WIDGET (w
->data
)))
337 WEdit
*e
= (WEdit
*) w
->data
;
340 if (e
->filename_vpath
== NULL
)
341 fname
= g_strdup_printf ("%c [%s]", e
->modified
? '*' : ' ', _("NoName"));
344 g_strdup_printf ("%c%s", e
->modified
? '*' : ' ',
345 vfs_path_as_str (e
->filename_vpath
));
347 listbox_add_item (listbox
->list
, LISTBOX_APPEND_AT_END
, get_hotkey (i
++),
348 str_term_trim (fname
, WIDGET (listbox
->list
)->cols
- 2), NULL
, FALSE
);
352 rv
= g_list_position (h
->widgets
, h
->current
) - offset
;
353 listbox_select_entry (listbox
->list
, rv
);
354 rv
= run_listbox (listbox
);
357 w
= g_list_nth (h
->widgets
, rv
+ offset
);
358 dlg_set_top_widget (w
->data
);
362 /* --------------------------------------------------------------------------------------------- */
365 edit_get_shortcut (long command
)
368 const char *shortcut
= NULL
;
370 shortcut
= keybind_lookup_keymap_shortcut (editor_map
, command
);
371 if (shortcut
!= NULL
)
372 return g_strdup (shortcut
);
374 ext_map
= keybind_lookup_keymap_shortcut (editor_map
, CK_ExtendedKeyMap
);
376 shortcut
= keybind_lookup_keymap_shortcut (editor_x_map
, command
);
377 if (shortcut
!= NULL
)
378 return g_strdup_printf ("%s %s", ext_map
, shortcut
);
383 /* --------------------------------------------------------------------------------------------- */
386 edit_get_title (const WDialog
* h
, size_t len
)
388 const WEdit
*edit
= find_editor (h
);
389 const char *modified
= edit
->modified
? "(*) " : " ";
390 const char *file_label
;
395 if (edit
->filename_vpath
== NULL
)
396 filename
= g_strdup (_("[NoName]"));
398 filename
= g_strdup (vfs_path_as_str (edit
->filename_vpath
));
400 file_label
= str_term_trim (filename
, len
- str_term_width1 (_("Edit: ")));
403 return g_strconcat (_("Edit: "), modified
, file_label
, (char *) NULL
);
406 /* --------------------------------------------------------------------------------------------- */
409 edit_dialog_command_execute (WDialog
* h
, long command
)
411 Widget
*wh
= WIDGET (h
);
412 cb_ret_t ret
= MSG_HANDLED
;
417 edit_add_window (h
, wh
->y
+ 1, wh
->x
, wh
->lines
- 2, wh
->cols
, NULL
, 0);
422 case CK_EditSyntaxFile
:
423 edit_load_syntax_file (h
);
425 case CK_EditUserMenu
:
426 edit_load_menu_file (h
);
429 /* if there are no opened files anymore, close MC editor */
430 if (edit_widget_is_editor (CONST_WIDGET (h
->current
->data
)) &&
431 edit_close_cmd ((WEdit
*) h
->current
->data
) && find_editor (h
) == NULL
)
436 /* edit->force |= REDRAW_COMPLETELY; */
443 /* don't close editor due to SIGINT, but stop move/resize window */
445 Widget
*w
= WIDGET (h
->current
->data
);
447 if (edit_widget_is_editor (w
) && ((WEdit
*) w
)->drag_state
!= MCEDIT_DRAG_NONE
)
448 edit_restore_size ((WEdit
*) w
);
449 else if (command
== CK_Quit
)
457 edit_syntax_onoff_cmd (h
);
460 edit_show_tabs_tws_cmd (h
);
463 edit_show_margin_cmd (h
);
466 edit_show_numbers_cmd (h
);
478 case CK_WindowResize
:
479 if (edit_widget_is_editor (CONST_WIDGET (h
->current
->data
)))
480 edit_handle_move_resize ((WEdit
*) h
->current
->data
, command
);
483 edit_window_list (h
);
487 dlg_set_top_widget (h
->current
->data
);
491 dlg_set_top_widget (h
->current
->data
);
494 edit_options_dialog (h
);
496 case CK_OptionsSaveMode
:
497 edit_save_mode_cmd ();
503 ret
= MSG_NOT_HANDLED
;
510 /* --------------------------------------------------------------------------------------------- */
512 * Translate the keycode into either 'command' or 'char_for_insertion'.
513 * 'command' is one of the editor commands from cmddef.h.
517 edit_translate_key (WEdit
* edit
, long x_key
, int *cmd
, int *ch
)
519 long command
= CK_InsertChar
;
520 int char_for_insertion
= -1;
522 /* an ordinary insertable character */
523 if (!edit
->extmod
&& x_key
< 256)
526 if (is_printable (x_key
))
528 char_for_insertion
= x_key
;
534 if (edit
->charpoint
>= 4)
537 edit
->charbuf
[edit
->charpoint
] = '\0';
539 if (edit
->charpoint
< 4)
541 edit
->charbuf
[edit
->charpoint
++] = x_key
;
542 edit
->charbuf
[edit
->charpoint
] = '\0';
545 /* input from 8-bit locale */
546 if (!mc_global
.utf8_display
)
548 /* source in 8-bit codeset */
549 c
= convert_from_input_c (x_key
);
551 if (is_printable (c
))
554 char_for_insertion
= c
;
556 char_for_insertion
= convert_from_8bit_to_utf_c2 ((char) x_key
);
565 res
= str_is_valid_char (edit
->charbuf
, edit
->charpoint
);
566 if (res
< 0 && res
!= -2)
568 edit
->charpoint
= 0; /* broken multibyte char, skip */
574 /* source in UTF-8 codeset */
577 char_for_insertion
= x_key
;
581 edit
->charbuf
[edit
->charpoint
] = '\0';
583 if (g_unichar_isprint (g_utf8_get_char (edit
->charbuf
)))
585 char_for_insertion
= x_key
;
594 /* not finised multibyte input (in meddle multibyte utf-8 char) */
598 if (g_unichar_isprint (g_utf8_get_char (edit
->charbuf
)))
600 c
= convert_from_utf_to_current (edit
->charbuf
);
601 edit
->charbuf
[0] = '\0';
603 char_for_insertion
= c
;
607 /* unprinteble utf input, skip it */
608 edit
->charbuf
[0] = '\0';
612 #endif /* HAVE_CHARSET */
615 /* Commands specific to the key emulation */
618 edit
->extmod
= FALSE
;
619 command
= keybind_lookup_keymap_command (editor_x_map
, x_key
);
622 command
= keybind_lookup_keymap_command (editor_map
, x_key
);
624 if (command
== CK_IgnoreKey
)
625 command
= CK_InsertChar
;
628 *cmd
= (int) command
; /* FIXME */
629 *ch
= char_for_insertion
;
631 return !(command
== CK_InsertChar
&& char_for_insertion
== -1);
635 /* --------------------------------------------------------------------------------------------- */
638 edit_quit (WDialog
* h
)
643 h
->state
= DLG_ACTIVE
; /* don't stop the dialog before final decision */
645 for (l
= h
->widgets
; l
!= NULL
; l
= g_list_next (l
))
646 if (edit_widget_is_editor (CONST_WIDGET (l
->data
)))
648 e
= (WEdit
*) l
->data
;
650 if (e
->drag_state
!= MCEDIT_DRAG_NONE
)
652 edit_restore_size (e
);
658 dlg_select_widget (e
);
660 if (!edit_ok_to_exit (e
))
665 /* no editors in dialog at all or no any file required to be saved */
666 if (e
== NULL
|| l
== NULL
)
667 h
->state
= DLG_CLOSED
;
670 /* --------------------------------------------------------------------------------------------- */
673 edit_set_buttonbar (WEdit
* edit
, WButtonBar
* bb
)
675 buttonbar_set_label (bb
, 1, Q_ ("ButtonBar|Help"), editor_map
, NULL
);
676 buttonbar_set_label (bb
, 2, Q_ ("ButtonBar|Save"), editor_map
, WIDGET (edit
));
677 buttonbar_set_label (bb
, 3, Q_ ("ButtonBar|Mark"), editor_map
, WIDGET (edit
));
678 buttonbar_set_label (bb
, 4, Q_ ("ButtonBar|Replac"), editor_map
, WIDGET (edit
));
679 buttonbar_set_label (bb
, 5, Q_ ("ButtonBar|Copy"), editor_map
, WIDGET (edit
));
680 buttonbar_set_label (bb
, 6, Q_ ("ButtonBar|Move"), editor_map
, WIDGET (edit
));
681 buttonbar_set_label (bb
, 7, Q_ ("ButtonBar|Search"), editor_map
, WIDGET (edit
));
682 buttonbar_set_label (bb
, 8, Q_ ("ButtonBar|Delete"), editor_map
, WIDGET (edit
));
683 buttonbar_set_label (bb
, 9, Q_ ("ButtonBar|PullDn"), editor_map
, NULL
);
684 buttonbar_set_label (bb
, 10, Q_ ("ButtonBar|Quit"), editor_map
, NULL
);
687 /* --------------------------------------------------------------------------------------------- */
690 edit_total_update (WEdit
* edit
)
692 edit_find_bracket (edit
);
693 edit
->force
|= REDRAW_COMPLETELY
;
694 edit_update_curs_row (edit
);
695 edit_update_screen (edit
);
698 /* --------------------------------------------------------------------------------------------- */
701 edit_update_cursor (WEdit
* edit
, const mouse_event_t
* event
)
706 x
= event
->x
- (edit
->fullscreen
? 0 : 1);
707 y
= event
->y
- (edit
->fullscreen
? 0 : 1);
709 if (edit
->mark2
!= -1 && event
->msg
== MSG_MOUSE_UP
)
710 return TRUE
; /* don't do anything */
712 if (event
->msg
== MSG_MOUSE_DOWN
|| event
->msg
== MSG_MOUSE_UP
)
713 edit_push_key_press (edit
);
715 if (!option_cursor_beyond_eol
)
716 edit
->prev_col
= x
- edit
->start_col
- option_line_state_width
;
722 edit_move_forward3 (edit
, edit_buffer_get_current_bol (&edit
->buffer
), 0,
723 edit_buffer_get_current_eol (&edit
->buffer
));
725 if (x
> line_len
- 1)
727 edit
->over_col
= x
- line_len
- edit
->start_col
- option_line_state_width
;
728 edit
->prev_col
= line_len
;
733 edit
->prev_col
= x
- option_line_state_width
- edit
->start_col
;
737 if (y
> edit
->curs_row
)
738 edit_move_down (edit
, y
- edit
->curs_row
, 0);
739 else if (y
< edit
->curs_row
)
740 edit_move_up (edit
, edit
->curs_row
- y
, 0);
742 edit_move_to_prev_col (edit
, edit_buffer_get_current_bol (&edit
->buffer
));
744 if (event
->msg
== MSG_MOUSE_CLICK
)
746 edit_mark_cmd (edit
, TRUE
); /* reset */
750 done
= (event
->msg
!= MSG_MOUSE_DRAG
);
752 edit_mark_cmd (edit
, FALSE
);
757 /* --------------------------------------------------------------------------------------------- */
758 /** Callback for the edit dialog */
761 edit_dialog_callback (Widget
* w
, Widget
* sender
, widget_msg_t msg
, int parm
, void *data
)
764 WButtonBar
*buttonbar
;
765 WDialog
*h
= DIALOG (w
);
774 /* don't use dlg_default_repaint() -- we don't need a frame */
775 tty_setcolor (EDITOR_BACKGROUND
);
780 menubar
= find_menubar (h
);
781 buttonbar
= find_buttonbar (h
);
782 /* dlg_set_size() is surplus for this case */
785 widget_set_size (WIDGET (buttonbar
), w
->lines
- 1, w
->x
, 1, w
->cols
);
786 widget_set_size (WIDGET (menubar
), w
->y
, w
->x
, 1, w
->cols
);
787 menubar_arrange (menubar
);
788 g_list_foreach (h
->widgets
, (GFunc
) edit_dialog_resize_cb
, NULL
);
793 /* Handle shortcuts, menu, and buttonbar. */
797 result
= edit_dialog_command_execute (h
, parm
);
799 /* We forward any commands coming from the menu, and which haven't been
800 handled by the dialog, to the focused WEdit window. */
801 if (result
== MSG_NOT_HANDLED
&& sender
== WIDGET (find_menubar (h
)))
802 result
= send_message (h
->current
->data
, NULL
, MSG_ACTION
, parm
, NULL
);
809 Widget
*we
= WIDGET (h
->current
->data
);
810 cb_ret_t ret
= MSG_NOT_HANDLED
;
812 if (edit_widget_is_editor (we
))
814 WEdit
*e
= (WEdit
*) we
;
818 command
= keybind_lookup_keymap_command (editor_map
, parm
);
822 command
= keybind_lookup_keymap_command (editor_x_map
, parm
);
825 if (command
!= CK_IgnoreKey
)
826 ret
= edit_dialog_command_execute (h
, command
);
830 * Due to the "end of bracket" escape the editor sees input with is_idle() == false
831 * (expects more characters) and hence doesn't yet refresh the screen, but then
832 * no further characters arrive (there's only an "end of bracket" which is swallowed
833 * by tty_get_event()), so you end up with a screen that's not refreshed after pasting.
834 * So let's trigger an IDLE signal.
837 widget_want_idle (w
, TRUE
);
841 /* hardcoded menu hotkeys (see edit_drop_hotkey_menu) */
842 case MSG_UNHANDLED_KEY
:
843 return edit_drop_hotkey_menu (h
, parm
) ? MSG_HANDLED
: MSG_NOT_HANDLED
;
854 widget_want_idle (w
, FALSE
);
855 return send_message (h
->current
->data
, NULL
, MSG_IDLE
, 0, NULL
);
858 return dlg_default_callback (w
, sender
, msg
, parm
, data
);
862 /* --------------------------------------------------------------------------------------------- */
865 * Handle mouse events of editor screen.
867 * @param w Widget object (the editor)
868 * @param msg mouse event message
869 * @param event mouse event data
872 edit_dialog_mouse_callback (Widget
* w
, mouse_msg_t msg
, mouse_event_t
* event
)
874 gboolean unhandled
= TRUE
;
876 if (msg
== MSG_MOUSE_DOWN
&& event
->y
== 0)
878 WDialog
*h
= DIALOG (w
);
881 b
= find_menubar (h
);
891 /* Try find top fullscreen window */
892 for (l
= h
->widgets
; l
!= NULL
; l
= g_list_next (l
))
893 if (edit_widget_is_editor (CONST_WIDGET (l
->data
))
894 && ((WEdit
*) l
->data
)->fullscreen
)
897 /* Handle fullscreen/close buttons in the top line */
900 if (top
!= NULL
&& event
->x
>= x
)
902 WEdit
*e
= (WEdit
*) top
->data
;
904 if (top
!= h
->current
)
906 /* Window is not active. Activate it */
907 dlg_set_top_widget (e
);
911 if (event
->x
- x
<= 2)
912 edit_toggle_fullscreen (e
);
914 send_message (h
, NULL
, MSG_ACTION
, CK_Close
, NULL
);
920 menubar_activate (b
, drop_menus
!= 0, -1);
924 /* Continue handling of unhandled event in window or menu */
925 event
->result
.abort
= unhandled
;
928 /* --------------------------------------------------------------------------------------------- */
931 edit_callback (Widget
* w
, Widget
* sender
, widget_msg_t msg
, int parm
, void *data
)
933 WEdit
*e
= (WEdit
*) w
;
938 edit_set_buttonbar (e
, find_buttonbar (w
->owner
));
942 e
->force
|= REDRAW_COMPLETELY
;
943 edit_update_screen (e
);
947 /* redraw frame and status */
948 edit_status (e
, FALSE
);
954 cb_ret_t ret
= MSG_NOT_HANDLED
;
956 /* The user may override the access-keys for the menu bar. */
957 if (macro_index
== -1 && edit_execute_macro (e
, parm
))
959 edit_update_screen (e
);
962 else if (edit_translate_key (e
, parm
, &cmd
, &ch
))
964 edit_execute_key_command (e
, cmd
, ch
);
965 edit_update_screen (e
);
973 /* command from menubar or buttonbar */
974 edit_execute_key_command (e
, parm
, -1);
975 edit_update_screen (e
);
982 y
= (e
->fullscreen
? 0 : 1) + EDIT_TEXT_VERTICAL_OFFSET
+ e
->curs_row
;
983 x
= (e
->fullscreen
? 0 : 1) + EDIT_TEXT_HORIZONTAL_OFFSET
+ option_line_state_width
+
984 e
->curs_col
+ e
->start_col
+ e
->over_col
;
986 widget_move (w
, y
, x
);
991 edit_update_screen (e
);
999 return widget_default_callback (w
, sender
, msg
, parm
, data
);
1003 /* --------------------------------------------------------------------------------------------- */
1006 * Handle move/resize mouse events.
1009 edit_mouse_handle_move_resize (Widget
* w
, mouse_msg_t msg
, mouse_event_t
* event
)
1011 WEdit
*edit
= (WEdit
*) (w
);
1012 Widget
*h
= WIDGET (w
->owner
);
1013 int global_x
, global_y
;
1015 if (msg
== MSG_MOUSE_UP
)
1017 /* Exit move/resize mode. */
1018 edit_execute_cmd (edit
, CK_Enter
, -1);
1022 if (msg
!= MSG_MOUSE_DRAG
)
1024 * We ignore any other events. Specifically, MSG_MOUSE_DOWN.
1026 * When the move/resize is initiated by the menu, we let the user
1027 * stop it by clicking with the mouse. Which is why we don't want
1028 * a mouse down to affect the window.
1032 /* Convert point to global coordinates for easier calculations. */
1033 global_x
= event
->x
+ w
->x
;
1034 global_y
= event
->y
+ w
->y
;
1036 /* Clamp the point to the dialog's client area. */
1037 global_y
= CLAMP (global_y
, h
->y
+ 1, h
->y
+ h
->lines
- 2); /* Status line, buttonbar */
1038 global_x
= CLAMP (global_x
, h
->x
, h
->x
+ h
->cols
- 1); /* Currently a no-op, as the dialog has no left/right margins. */
1040 if (edit
->drag_state
== MCEDIT_DRAG_MOVE
)
1043 w
->x
= global_x
- edit
->drag_state_start
;
1045 else if (edit
->drag_state
== MCEDIT_DRAG_RESIZE
)
1047 w
->lines
= max (WINDOW_MIN_LINES
, global_y
- w
->y
+ 1);
1048 w
->cols
= max (WINDOW_MIN_COLS
, global_x
- w
->x
+ 1);
1051 edit
->force
|= REDRAW_COMPLETELY
; /* Not really needed as WEdit's MSG_DRAW already does this. */
1053 /* We draw the whole dialog because dragging/resizing exposes area beneath. */
1054 dlg_redraw (w
->owner
);
1057 /* --------------------------------------------------------------------------------------------- */
1060 * Handle mouse events of editor window
1062 * @param w Widget object (the editor window)
1063 * @param msg mouse event message
1064 * @param event mouse event data
1067 edit_mouse_callback (Widget
* w
, mouse_msg_t msg
, mouse_event_t
* event
)
1069 WEdit
*edit
= (WEdit
*) w
;
1070 /* offset for top line */
1071 int dx
= edit
->fullscreen
? 0 : 2;
1072 /* location of 'Close' and 'Toggle fullscreen' pictograms */
1073 int close_x
, toggle_fullscreen_x
;
1075 close_x
= (w
->cols
- 1) - dx
- 1;
1076 toggle_fullscreen_x
= close_x
- 3;
1078 if (edit
->drag_state
!= MCEDIT_DRAG_NONE
)
1080 /* window is being resized/moved */
1081 edit_mouse_handle_move_resize (w
, msg
, event
);
1087 case MSG_MOUSE_DOWN
:
1088 dlg_set_top_widget (w
);
1089 edit_update_curs_row (edit
);
1090 edit_update_curs_col (edit
);
1092 if (!edit
->fullscreen
)
1096 if (event
->x
== close_x
)
1097 ; /* do nothing (see MSG_MOUSE_CLICK) */
1098 else if (event
->x
== toggle_fullscreen_x
)
1099 ; /* do nothing (see MSG_MOUSE_CLICK) */
1102 /* start window move */
1103 edit_execute_cmd (edit
, CK_WindowMove
, -1);
1104 edit
->drag_state_start
= event
->x
;
1109 if (event
->y
== w
->lines
- 1 && event
->x
== w
->cols
- 1)
1111 /* bottom-right corner -- start window resize */
1112 edit_execute_cmd (edit
, CK_WindowResize
, -1);
1117 /* fall through to start/stop text selection */
1120 edit_update_cursor (edit
, event
);
1121 edit_total_update (edit
);
1124 case MSG_MOUSE_CLICK
:
1127 if (event
->x
== close_x
)
1128 send_message (w
->owner
, NULL
, MSG_ACTION
, CK_Close
, NULL
);
1129 else if (event
->x
== toggle_fullscreen_x
)
1130 edit_toggle_fullscreen (edit
);
1131 else if (!edit
->fullscreen
&& event
->count
== GPM_DOUBLE
)
1132 /* double click on top line (toggle fullscreen) */
1133 edit_toggle_fullscreen (edit
);
1135 else if (event
->count
== GPM_DOUBLE
)
1138 edit_mark_current_word_cmd (edit
);
1139 edit_total_update (edit
);
1141 else if (event
->count
== GPM_TRIPLE
)
1143 /* triple click: works in GPM only, not in xterm */
1144 edit_mark_current_line_cmd (edit
);
1145 edit_total_update (edit
);
1149 case MSG_MOUSE_DRAG
:
1150 edit_update_cursor (edit
, event
);
1151 edit_total_update (edit
);
1154 case MSG_MOUSE_SCROLL_UP
:
1155 edit_move_up (edit
, 2, 1);
1156 edit_total_update (edit
);
1159 case MSG_MOUSE_SCROLL_DOWN
:
1160 edit_move_down (edit
, 2, 1);
1161 edit_total_update (edit
);
1169 /* --------------------------------------------------------------------------------------------- */
1170 /*** public functions ****************************************************************************/
1171 /* --------------------------------------------------------------------------------------------- */
1175 * @param file_vpath file object
1176 * @param line line number
1177 * @return TRUE if no errors was occurred, FALSE otherwise
1181 edit_file (const vfs_path_t
* file_vpath
, long line
)
1183 mcedit_arg_t arg
= { (vfs_path_t
*) file_vpath
, line
};
1187 files
= g_list_prepend (NULL
, &arg
);
1188 ok
= edit_files (files
);
1189 g_list_free (files
);
1194 /* --------------------------------------------------------------------------------------------- */
1197 edit_files (const GList
* files
)
1199 static gboolean made_directory
= FALSE
;
1203 gboolean ok
= FALSE
;
1205 if (!made_directory
)
1209 dir
= mc_build_filename (mc_config_get_cache_path (), EDIT_DIR
, NULL
);
1210 made_directory
= (mkdir (dir
, 0700) != -1 || errno
== EEXIST
);
1213 dir
= mc_build_filename (mc_config_get_path (), EDIT_DIR
, NULL
);
1214 made_directory
= (mkdir (dir
, 0700) != -1 || errno
== EEXIST
);
1217 dir
= mc_build_filename (mc_config_get_data_path (), EDIT_DIR
, NULL
);
1218 made_directory
= (mkdir (dir
, 0700) != -1 || errno
== EEXIST
);
1222 /* Create a new dialog and add it widgets to it */
1224 dlg_create (FALSE
, 0, 0, LINES
, COLS
, NULL
, edit_dialog_callback
,
1225 edit_dialog_mouse_callback
, "[Internal File Editor]", NULL
, DLG_WANT_TAB
);
1227 edit_dlg
->get_shortcut
= edit_get_shortcut
;
1228 edit_dlg
->get_title
= edit_get_title
;
1230 menubar
= menubar_new (0, 0, COLS
, NULL
, TRUE
);
1231 add_widget (edit_dlg
, menubar
);
1232 edit_init_menu (menubar
);
1234 add_widget (edit_dlg
, buttonbar_new (TRUE
));
1236 for (file
= files
; file
!= NULL
; file
= g_list_next (file
))
1238 Widget
*w
= WIDGET (edit_dlg
);
1239 mcedit_arg_t
*f
= (mcedit_arg_t
*) file
->data
;
1242 f_ok
= edit_add_window (edit_dlg
, w
->y
+ 1, w
->x
, w
->lines
- 2, w
->cols
, f
->file_vpath
,
1244 /* at least one file has been opened succefully */
1251 if (!ok
|| edit_dlg
->state
== DLG_CLOSED
)
1252 dlg_destroy (edit_dlg
);
1257 /* --------------------------------------------------------------------------------------------- */
1260 edit_get_file_name (const WEdit
* edit
)
1262 return vfs_path_as_str (edit
->filename_vpath
);
1265 /* --------------------------------------------------------------------------------------------- */
1268 find_editor (const WDialog
* h
)
1270 if (edit_widget_is_editor (CONST_WIDGET (h
->current
->data
)))
1271 return (WEdit
*) h
->current
->data
;
1272 return (WEdit
*) find_widget_type (h
, edit_callback
);
1275 /* --------------------------------------------------------------------------------------------- */
1277 * Check if widget is an WEdit class.
1279 * @param w probably editor object
1280 * @return TRUE if widget is an WEdit class, FALSE otherwise
1284 edit_widget_is_editor (const Widget
* w
)
1286 return (w
!= NULL
&& w
->callback
== edit_callback
);
1289 /* --------------------------------------------------------------------------------------------- */
1292 edit_update_screen (WEdit
* e
)
1294 WDialog
*h
= WIDGET (e
)->owner
;
1296 edit_scroll_screen_over_cursor (e
);
1297 edit_update_curs_col (e
);
1298 edit_status (e
, (void *) e
== h
->current
->data
);
1300 /* pop all events for this window for internal handling */
1302 e
->force
|= REDRAW_PAGE
;
1305 if ((e
->force
& REDRAW_COMPLETELY
) != 0)
1306 e
->force
|= REDRAW_PAGE
;
1307 edit_render_keypress (e
);
1310 widget_redraw (WIDGET (find_buttonbar (h
)));
1313 /* --------------------------------------------------------------------------------------------- */
1315 * Save current window size.
1317 * @param edit editor object
1321 edit_save_size (WEdit
* edit
)
1323 Widget
*w
= WIDGET (edit
);
1325 edit
->y_prev
= w
->y
;
1326 edit
->x_prev
= w
->x
;
1327 edit
->lines_prev
= w
->lines
;
1328 edit
->cols_prev
= w
->cols
;
1331 /* --------------------------------------------------------------------------------------------- */
1333 * Create new editor window and insert it into editor screen.
1335 * @param h editor dialog (screen)
1336 * @param y y coordinate
1337 * @param x x coordinate
1338 * @param lines window height
1339 * @param cols window width
1340 * @param f file object
1341 * @param fline line number in file
1342 * @return TRUE if new window was successfully created and inserted into editor screen,
1347 edit_add_window (WDialog
* h
, int y
, int x
, int lines
, int cols
, const vfs_path_t
* f
, long fline
)
1352 edit
= edit_init (NULL
, y
, x
, lines
, cols
, f
, fline
);
1357 w
->callback
= edit_callback
;
1358 w
->mouse_callback
= edit_mouse_callback
;
1366 /* --------------------------------------------------------------------------------------------- */
1368 * Handle move/resize events.
1370 * @param edit editor object
1371 * @param command action id
1372 * @return TRUE if the action was handled, FALSE otherwise
1376 edit_handle_move_resize (WEdit
* edit
, long command
)
1378 Widget
*w
= WIDGET (edit
);
1379 gboolean ret
= FALSE
;
1381 if (edit
->fullscreen
)
1383 edit
->drag_state
= MCEDIT_DRAG_NONE
;
1384 w
->mouse
.forced_capture
= FALSE
;
1388 switch (edit
->drag_state
)
1390 case MCEDIT_DRAG_NONE
:
1391 /* possible start move/resize */
1395 edit
->drag_state
= MCEDIT_DRAG_MOVE
;
1396 edit_save_size (edit
);
1397 edit_status (edit
, TRUE
); /* redraw frame and status */
1399 * If a user initiates a move by the menu, not by the mouse, we
1400 * make a subsequent mouse drag pull the frame from its middle.
1401 * (We can instead choose '0' to pull it from the corner.)
1403 edit
->drag_state_start
= w
->cols
/ 2;
1406 case CK_WindowResize
:
1407 edit
->drag_state
= MCEDIT_DRAG_RESIZE
;
1408 edit_save_size (edit
);
1409 edit_status (edit
, TRUE
); /* redraw frame and status */
1417 case MCEDIT_DRAG_MOVE
:
1420 case CK_WindowResize
:
1421 edit
->drag_state
= MCEDIT_DRAG_RESIZE
;
1428 edit_window_move (edit
, command
);
1433 edit
->drag_state
= MCEDIT_DRAG_NONE
;
1434 edit_status (edit
, TRUE
); /* redraw frame and status */
1441 case MCEDIT_DRAG_RESIZE
:
1445 edit
->drag_state
= MCEDIT_DRAG_MOVE
;
1452 edit_window_resize (edit
, command
);
1456 case CK_WindowResize
:
1457 edit
->drag_state
= MCEDIT_DRAG_NONE
;
1458 edit_status (edit
, TRUE
); /* redraw frame and status */
1470 * - We let the user stop a resize/move operation by clicking with the
1471 * mouse anywhere. ("clicking" = pressing and releasing a button.)
1472 * - We let the user perform a resize/move operation by a mouse drag
1473 * initiated anywhere.
1475 * "Anywhere" means: inside or outside the window. We make this happen
1476 * with the 'forced_capture' flag.
1478 w
->mouse
.forced_capture
= (edit
->drag_state
!= MCEDIT_DRAG_NONE
);
1483 /* --------------------------------------------------------------------------------------------- */
1485 * Toggle window fuulscreen mode.
1487 * @param edit editor object
1491 edit_toggle_fullscreen (WEdit
* edit
)
1493 edit
->fullscreen
= !edit
->fullscreen
;
1494 edit
->force
= REDRAW_COMPLETELY
;
1496 if (!edit
->fullscreen
)
1497 edit_restore_size (edit
);
1500 Widget
*w
= WIDGET (edit
);
1501 Widget
*h
= WIDGET (w
->owner
);
1503 edit_save_size (edit
);
1504 widget_set_size (w
, h
->y
+ 1, h
->x
, h
->lines
- 2, h
->cols
);
1505 edit
->force
|= REDRAW_PAGE
;
1506 edit_update_screen (edit
);
1510 /* --------------------------------------------------------------------------------------------- */