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diff --git a/lib/widget/menu.c b/lib/widget/menu.c
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--- /dev/null
+++ b/lib/widget/menu.c
@@ -0,0 +1,1092 @@
+/*
+ Pulldown menu code
+
+ Copyright (C) 1994-2023
+ Free Software Foundation, Inc.
+
+ Written by:
+ Andrew Borodin <aborodin@vmail.ru>, 2012-2022
+
+ This file is part of the Midnight Commander.
+
+ The Midnight Commander is free software: you can redistribute it
+ and/or modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
+
+ The Midnight Commander is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** \file menu.c
+ * \brief Source: pulldown menu code
+ */
+
+#include <config.h>
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "lib/global.h"
+
+#include "lib/tty/tty.h"
+#include "lib/skin.h"
+#include "lib/tty/key.h" /* key macros */
+#include "lib/strutil.h"
+#include "lib/widget.h"
+#include "lib/event.h" /* mc_event_raise() */
+
+/*** global variables ****************************************************************************/
+
+const global_keymap_t *menu_map = NULL;
+
+/*** file scope macro definitions ****************************************************************/
+
+#define MENUENTRY(x) ((menu_entry_t *)(x))
+#define MENU(x) ((menu_t *)(x))
+
+/*** file scope type declarations ****************************************************************/
+
+struct menu_entry_t
+{
+ unsigned char first_letter;
+ hotkey_t text;
+ long command;
+ char *shortcut;
+};
+
+struct menu_t
+{
+ int start_x; /* position relative to menubar start */
+ hotkey_t text;
+ GList *entries;
+ size_t max_entry_len; /* cached max length of entry texts (text + shortcut) */
+ size_t max_hotkey_len; /* cached max length of shortcuts */
+ unsigned int current; /* pointer to current menu entry */
+ char *help_node;
+};
+
+/*** forward declarations (file scope functions) *************************************************/
+
+/*** file scope variables ************************************************************************/
+
+/* --------------------------------------------------------------------------------------------- */
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menu_arrange (menu_t * menu, dlg_shortcut_str get_shortcut)
+{
+ if (menu != NULL)
+ {
+ GList *i;
+ size_t max_shortcut_len = 0;
+
+ menu->max_entry_len = 1;
+ menu->max_hotkey_len = 1;
+
+ for (i = menu->entries; i != NULL; i = g_list_next (i))
+ {
+ menu_entry_t *entry = MENUENTRY (i->data);
+
+ if (entry != NULL)
+ {
+ size_t len;
+
+ len = (size_t) hotkey_width (entry->text);
+ menu->max_hotkey_len = MAX (menu->max_hotkey_len, len);
+
+ if (get_shortcut != NULL)
+ entry->shortcut = get_shortcut (entry->command);
+
+ if (entry->shortcut != NULL)
+ {
+ len = (size_t) str_term_width1 (entry->shortcut);
+ max_shortcut_len = MAX (max_shortcut_len, len);
+ }
+ }
+ }
+
+ menu->max_entry_len = menu->max_hotkey_len + max_shortcut_len;
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_paint_idx (const WMenuBar * menubar, unsigned int idx, int color)
+{
+ const WRect *w = &CONST_WIDGET (menubar)->rect;
+ const menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->current));
+ const menu_entry_t *entry = MENUENTRY (g_list_nth_data (menu->entries, idx));
+ const int y = 2 + idx;
+ int x = menu->start_x;
+
+ if (x + menu->max_entry_len + 4 > (gsize) w->cols)
+ x = w->cols - menu->max_entry_len - 4;
+
+ if (entry == NULL)
+ {
+ /* menu separator */
+ tty_setcolor (MENU_ENTRY_COLOR);
+
+ widget_gotoyx (menubar, y, x - 1);
+ tty_print_alt_char (ACS_LTEE, FALSE);
+ tty_draw_hline (w->y + y, w->x + x, ACS_HLINE, menu->max_entry_len + 3);
+ widget_gotoyx (menubar, y, x + menu->max_entry_len + 3);
+ tty_print_alt_char (ACS_RTEE, FALSE);
+ }
+ else
+ {
+ int yt, xt;
+
+ /* menu text */
+ tty_setcolor (color);
+ widget_gotoyx (menubar, y, x);
+ tty_print_char ((unsigned char) entry->first_letter);
+ tty_getyx (&yt, &xt);
+ tty_draw_hline (yt, xt, ' ', menu->max_entry_len + 2); /* clear line */
+ tty_print_string (entry->text.start);
+
+ if (entry->text.hotkey != NULL)
+ {
+ tty_setcolor (color == MENU_SELECTED_COLOR ? MENU_HOTSEL_COLOR : MENU_HOT_COLOR);
+ tty_print_string (entry->text.hotkey);
+ tty_setcolor (color);
+ }
+
+ if (entry->text.end != NULL)
+ tty_print_string (entry->text.end);
+
+ if (entry->shortcut != NULL)
+ {
+ widget_gotoyx (menubar, y, x + menu->max_hotkey_len + 3);
+ tty_print_string (entry->shortcut);
+ }
+
+ /* move cursor to the start of entry text */
+ widget_gotoyx (menubar, y, x + 1);
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_draw_drop (const WMenuBar * menubar)
+{
+ const WRect *w = &CONST_WIDGET (menubar)->rect;
+ const menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->current));
+ const unsigned int count = g_list_length (menu->entries);
+ int column = menu->start_x - 1;
+ unsigned int i;
+
+ if (column + menu->max_entry_len + 5 > (gsize) w->cols)
+ column = w->cols - menu->max_entry_len - 5;
+
+ if (mc_global.tty.shadows)
+ tty_draw_box_shadow (w->y + 1, w->x + column, count + 2, menu->max_entry_len + 5,
+ SHADOW_COLOR);
+
+ tty_setcolor (MENU_ENTRY_COLOR);
+ tty_draw_box (w->y + 1, w->x + column, count + 2, menu->max_entry_len + 5, FALSE);
+
+ for (i = 0; i < count; i++)
+ menubar_paint_idx (menubar, i, i == menu->current ? MENU_SELECTED_COLOR : MENU_ENTRY_COLOR);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_set_color (const WMenuBar * menubar, gboolean current, gboolean hotkey)
+{
+ if (!widget_get_state (CONST_WIDGET (menubar), WST_FOCUSED))
+ tty_setcolor (MENU_INACTIVE_COLOR);
+ else if (current)
+ tty_setcolor (hotkey ? MENU_HOTSEL_COLOR : MENU_SELECTED_COLOR);
+ else
+ tty_setcolor (hotkey ? MENU_HOT_COLOR : MENU_ENTRY_COLOR);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_draw (const WMenuBar * menubar)
+{
+ const WRect *w = &CONST_WIDGET (menubar)->rect;
+ GList *i;
+
+ /* First draw the complete menubar */
+ tty_setcolor (widget_get_state (WIDGET (menubar), WST_FOCUSED) ? MENU_ENTRY_COLOR :
+ MENU_INACTIVE_COLOR);
+ tty_draw_hline (w->y, w->x, ' ', w->cols);
+
+ /* Now each one of the entries */
+ for (i = menubar->menu; i != NULL; i = g_list_next (i))
+ {
+ menu_t *menu = MENU (i->data);
+ gboolean is_selected = (menubar->current == (gsize) g_list_position (menubar->menu, i));
+
+ menubar_set_color (menubar, is_selected, FALSE);
+ widget_gotoyx (menubar, 0, menu->start_x);
+
+ tty_print_char (' ');
+ tty_print_string (menu->text.start);
+
+ if (menu->text.hotkey != NULL)
+ {
+ menubar_set_color (menubar, is_selected, TRUE);
+ tty_print_string (menu->text.hotkey);
+ menubar_set_color (menubar, is_selected, FALSE);
+ }
+
+ if (menu->text.end != NULL)
+ tty_print_string (menu->text.end);
+
+ tty_print_char (' ');
+ }
+
+ if (menubar->is_dropped)
+ menubar_draw_drop (menubar);
+ else
+ widget_gotoyx (menubar, 0,
+ MENU (g_list_nth_data (menubar->menu, menubar->current))->start_x);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_remove (WMenuBar * menubar)
+{
+ Widget *g;
+
+ if (!menubar->is_dropped)
+ return;
+
+ /* HACK: before refresh the dialog, change the current widget to keep the order
+ of overlapped widgets. This is useful in multi-window editor.
+ In general, menubar should be a special object, not an ordinary widget
+ in the current dialog. */
+ g = WIDGET (WIDGET (menubar)->owner);
+ GROUP (g)->current = widget_find (g, widget_find_by_id (g, menubar->previous_widget));
+
+ menubar->is_dropped = FALSE;
+ do_refresh ();
+ menubar->is_dropped = TRUE;
+
+ /* restore current widget */
+ GROUP (g)->current = widget_find (g, WIDGET (menubar));
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_left (WMenuBar * menubar)
+{
+ menubar_remove (menubar);
+ if (menubar->current == 0)
+ menubar->current = g_list_length (menubar->menu) - 1;
+ else
+ menubar->current--;
+ menubar_draw (menubar);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_right (WMenuBar * menubar)
+{
+ menubar_remove (menubar);
+ menubar->current = (menubar->current + 1) % g_list_length (menubar->menu);
+ menubar_draw (menubar);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_finish (WMenuBar * menubar)
+{
+ Widget *w = WIDGET (menubar);
+
+ menubar->is_dropped = FALSE;
+ w->rect.lines = 1;
+ widget_want_hotkey (w, FALSE);
+ widget_set_options (w, WOP_SELECTABLE, FALSE);
+
+ if (!mc_global.keybar_visible)
+ widget_hide (w);
+ else
+ {
+ /* Move the menubar to the bottom so that widgets displayed on top of
+ * an "invisible" menubar get the first chance to respond to mouse events. */
+ widget_set_bottom (w);
+ }
+
+ /* background must be bottom */
+ if (DIALOG (w->owner)->bg != NULL)
+ widget_set_bottom (WIDGET (DIALOG (w->owner)->bg));
+
+ group_select_widget_by_id (w->owner, menubar->previous_widget);
+ do_refresh ();
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_drop (WMenuBar * menubar, unsigned int selected)
+{
+ menubar->is_dropped = TRUE;
+ menubar->current = selected;
+ menubar_draw (menubar);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_execute (WMenuBar * menubar)
+{
+ const menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->current));
+ const menu_entry_t *entry = MENUENTRY (g_list_nth_data (menu->entries, menu->current));
+
+ if ((entry != NULL) && (entry->command != CK_IgnoreKey))
+ {
+ Widget *w = WIDGET (menubar);
+
+ mc_global.widget.is_right = (menubar->current != 0);
+ menubar_finish (menubar);
+ send_message (w->owner, w, MSG_ACTION, entry->command, NULL);
+ do_refresh ();
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_down (WMenuBar * menubar)
+{
+ menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->current));
+ const unsigned int len = g_list_length (menu->entries);
+ menu_entry_t *entry;
+
+ menubar_paint_idx (menubar, menu->current, MENU_ENTRY_COLOR);
+
+ do
+ {
+ menu->current = (menu->current + 1) % len;
+ entry = MENUENTRY (g_list_nth_data (menu->entries, menu->current));
+ }
+ while ((entry == NULL) || (entry->command == CK_IgnoreKey));
+
+ menubar_paint_idx (menubar, menu->current, MENU_SELECTED_COLOR);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_up (WMenuBar * menubar)
+{
+ menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->current));
+ const unsigned int len = g_list_length (menu->entries);
+ menu_entry_t *entry;
+
+ menubar_paint_idx (menubar, menu->current, MENU_ENTRY_COLOR);
+
+ do
+ {
+ if (menu->current == 0)
+ menu->current = len - 1;
+ else
+ menu->current--;
+ entry = MENUENTRY (g_list_nth_data (menu->entries, menu->current));
+ }
+ while ((entry == NULL) || (entry->command == CK_IgnoreKey));
+
+ menubar_paint_idx (menubar, menu->current, MENU_SELECTED_COLOR);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_first (WMenuBar * menubar)
+{
+ if (menubar->is_dropped)
+ {
+ menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->current));
+
+ if (menu->current == 0)
+ return;
+
+ menubar_paint_idx (menubar, menu->current, MENU_ENTRY_COLOR);
+
+ menu->current = 0;
+
+ while (TRUE)
+ {
+ menu_entry_t *entry;
+
+ entry = MENUENTRY (g_list_nth_data (menu->entries, menu->current));
+
+ if ((entry == NULL) || (entry->command == CK_IgnoreKey))
+ menu->current++;
+ else
+ break;
+ }
+
+ menubar_paint_idx (menubar, menu->current, MENU_SELECTED_COLOR);
+ }
+ else
+ {
+ menubar->current = 0;
+ menubar_draw (menubar);
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_last (WMenuBar * menubar)
+{
+ if (menubar->is_dropped)
+ {
+ menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->current));
+ const unsigned int len = g_list_length (menu->entries);
+ menu_entry_t *entry;
+
+ if (menu->current == len - 1)
+ return;
+
+ menubar_paint_idx (menubar, menu->current, MENU_ENTRY_COLOR);
+
+ menu->current = len;
+
+ do
+ {
+ menu->current--;
+ entry = MENUENTRY (g_list_nth_data (menu->entries, menu->current));
+ }
+ while ((entry == NULL) || (entry->command == CK_IgnoreKey));
+
+ menubar_paint_idx (menubar, menu->current, MENU_SELECTED_COLOR);
+ }
+ else
+ {
+ menubar->current = g_list_length (menubar->menu) - 1;
+ menubar_draw (menubar);
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static cb_ret_t
+menubar_try_drop_menu (WMenuBar * menubar, int hotkey)
+{
+ GList *i;
+
+ for (i = menubar->menu; i != NULL; i = g_list_next (i))
+ {
+ menu_t *menu = MENU (i->data);
+
+ if (menu->text.hotkey != NULL && hotkey == g_ascii_tolower (menu->text.hotkey[0]))
+ {
+ menubar_drop (menubar, g_list_position (menubar->menu, i));
+ return MSG_HANDLED;
+ }
+ }
+
+ return MSG_NOT_HANDLED;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static cb_ret_t
+menubar_try_exec_menu (WMenuBar * menubar, int hotkey)
+{
+ menu_t *menu;
+ GList *i;
+
+ menu = g_list_nth_data (menubar->menu, menubar->current);
+
+ for (i = menu->entries; i != NULL; i = g_list_next (i))
+ {
+ const menu_entry_t *entry = MENUENTRY (i->data);
+
+ if (entry != NULL && entry->text.hotkey != NULL
+ && hotkey == g_ascii_tolower (entry->text.hotkey[0]))
+ {
+ menu->current = g_list_position (menu->entries, i);
+ menubar_execute (menubar);
+ return MSG_HANDLED;
+ }
+ }
+
+ return MSG_NOT_HANDLED;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static cb_ret_t
+menubar_execute_cmd (WMenuBar * menubar, long command)
+{
+ cb_ret_t ret = MSG_HANDLED;
+
+ switch (command)
+ {
+ case CK_Help:
+ {
+ ev_help_t event_data = { NULL, NULL };
+
+ if (menubar->is_dropped)
+ event_data.node =
+ MENU (g_list_nth_data (menubar->menu, menubar->current))->help_node;
+ else
+ event_data.node = "[Menu Bar]";
+
+ mc_event_raise (MCEVENT_GROUP_CORE, "help", &event_data);
+ menubar_draw (menubar);
+ }
+ break;
+
+ case CK_Left:
+ menubar_left (menubar);
+ break;
+ case CK_Right:
+ menubar_right (menubar);
+ break;
+ case CK_Up:
+ if (menubar->is_dropped)
+ menubar_up (menubar);
+ break;
+ case CK_Down:
+ if (menubar->is_dropped)
+ menubar_down (menubar);
+ else
+ menubar_drop (menubar, menubar->current);
+ break;
+ case CK_Home:
+ menubar_first (menubar);
+ break;
+ case CK_End:
+ menubar_last (menubar);
+ break;
+
+ case CK_Enter:
+ if (menubar->is_dropped)
+ menubar_execute (menubar);
+ else
+ menubar_drop (menubar, menubar->current);
+ break;
+ case CK_Quit:
+ menubar_finish (menubar);
+ break;
+
+ default:
+ ret = MSG_NOT_HANDLED;
+ break;
+ }
+
+ return ret;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static int
+menubar_handle_key (WMenuBar * menubar, int key)
+{
+ long cmd;
+ cb_ret_t ret = MSG_NOT_HANDLED;
+
+ cmd = widget_lookup_key (WIDGET (menubar), key);
+
+ if (cmd != CK_IgnoreKey)
+ ret = menubar_execute_cmd (menubar, cmd);
+
+ if (ret != MSG_HANDLED)
+ {
+ if (menubar->is_dropped)
+ ret = menubar_try_exec_menu (menubar, key);
+ else
+ ret = menubar_try_drop_menu (menubar, key);
+ }
+
+ return ret;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static gboolean
+menubar_refresh (WMenuBar * menubar)
+{
+ Widget *w = WIDGET (menubar);
+
+ if (!widget_get_state (w, WST_FOCUSED))
+ return FALSE;
+
+ /* Trick to get all the mouse events */
+ w->rect.lines = LINES;
+
+ /* Trick to get all of the hotkeys */
+ widget_want_hotkey (w, TRUE);
+ return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static inline void
+menubar_free_menu (WMenuBar * menubar)
+{
+ g_clear_list (&menubar->menu, (GDestroyNotify) menu_free);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static cb_ret_t
+menubar_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
+{
+ WMenuBar *menubar = MENUBAR (w);
+
+ switch (msg)
+ {
+ /* We do not want the focus unless we have been activated */
+ case MSG_FOCUS:
+ if (menubar_refresh (menubar))
+ {
+ menubar_draw (menubar);
+ return MSG_HANDLED;
+ }
+ return MSG_NOT_HANDLED;
+
+ case MSG_UNFOCUS:
+ return widget_get_state (w, WST_FOCUSED) ? MSG_NOT_HANDLED : MSG_HANDLED;
+
+ /* We don't want the buttonbar to activate while using the menubar */
+ case MSG_HOTKEY:
+ case MSG_KEY:
+ if (widget_get_state (w, WST_FOCUSED))
+ {
+ menubar_handle_key (menubar, parm);
+ return MSG_HANDLED;
+ }
+ return MSG_NOT_HANDLED;
+
+ case MSG_CURSOR:
+ /* Put the cursor in a suitable place */
+ return MSG_NOT_HANDLED;
+
+ case MSG_DRAW:
+ if (widget_get_state (w, WST_VISIBLE) || menubar_refresh (menubar))
+ menubar_draw (menubar);
+ return MSG_HANDLED;
+
+ case MSG_RESIZE:
+ /* try show menu after screen resize */
+ widget_default_callback (w, NULL, MSG_RESIZE, 0, data);
+ menubar_refresh (menubar);
+ return MSG_HANDLED;
+
+ case MSG_DESTROY:
+ menubar_free_menu (menubar);
+ return MSG_HANDLED;
+
+ default:
+ return widget_default_callback (w, sender, msg, parm, data);
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static unsigned int
+menubar_get_menu_by_x_coord (const WMenuBar * menubar, int x)
+{
+ unsigned int i;
+ GList *menu;
+
+ for (i = 0, menu = menubar->menu;
+ menu != NULL && x >= MENU (menu->data)->start_x; i++, menu = g_list_next (menu))
+ ;
+
+ /* Don't set the invalid value -1 */
+ if (i != 0)
+ i--;
+
+ return i;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static gboolean
+menubar_mouse_on_menu (const WMenuBar * menubar, int y, int x)
+{
+ const WRect *w = &CONST_WIDGET (menubar)->rect;
+ menu_t *menu;
+ int left_x, right_x, bottom_y;
+
+ if (!menubar->is_dropped)
+ return FALSE;
+
+ menu = MENU (g_list_nth_data (menubar->menu, menubar->current));
+ left_x = menu->start_x;
+ right_x = left_x + menu->max_entry_len + 3;
+ if (right_x > w->cols)
+ {
+ left_x = w->cols - (menu->max_entry_len + 3);
+ right_x = w->cols;
+ }
+
+ bottom_y = g_list_length (menu->entries) + 2; /* skip bar and top frame */
+
+ return (x >= left_x && x < right_x && y > 1 && y < bottom_y);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_change_selected_item (WMenuBar * menubar, int y)
+{
+ menu_t *menu;
+ menu_entry_t *entry;
+
+ y -= 2; /* skip bar and top frame */
+ menu = MENU (g_list_nth_data (menubar->menu, menubar->current));
+ entry = MENUENTRY (g_list_nth_data (menu->entries, y));
+
+ if (entry != NULL && entry->command != CK_IgnoreKey)
+ {
+ menubar_paint_idx (menubar, menu->current, MENU_ENTRY_COLOR);
+ menu->current = y;
+ menubar_paint_idx (menubar, menu->current, MENU_SELECTED_COLOR);
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+menubar_mouse_callback (Widget * w, mouse_msg_t msg, mouse_event_t * event)
+{
+ static gboolean was_drag = FALSE;
+
+ WMenuBar *menubar = MENUBAR (w);
+ gboolean mouse_on_drop;
+
+ mouse_on_drop = menubar_mouse_on_menu (menubar, event->y, event->x);
+
+ switch (msg)
+ {
+ case MSG_MOUSE_DOWN:
+ was_drag = FALSE;
+
+ if (event->y == 0)
+ {
+ /* events on menubar */
+ unsigned int selected;
+
+ selected = menubar_get_menu_by_x_coord (menubar, event->x);
+ menubar_activate (menubar, TRUE, selected);
+ menubar_remove (menubar); /* if already shown */
+ menubar_drop (menubar, selected);
+ }
+ else if (mouse_on_drop)
+ menubar_change_selected_item (menubar, event->y);
+ else
+ {
+ /* mouse click outside menubar or dropdown -- close menu */
+ menubar_finish (menubar);
+
+ /*
+ * @FIXME.
+ *
+ * Unless we clear the 'capture' flag, we'll receive MSG_MOUSE_DRAG
+ * events belonging to this click (in case the user drags the mouse,
+ * of course).
+ *
+ * For the time being, we mark this with FIXME as this flag should
+ * preferably be regarded as "implementation detail" and not be
+ * touched by us. We should think of some other way of communicating
+ * this to the system.
+ */
+ w->mouse.capture = FALSE;
+ }
+ break;
+
+ case MSG_MOUSE_UP:
+ if (was_drag && mouse_on_drop)
+ menubar_execute (menubar);
+ was_drag = FALSE;
+ break;
+
+ case MSG_MOUSE_CLICK:
+ was_drag = FALSE;
+
+ if ((event->buttons & GPM_B_MIDDLE) != 0 && event->y > 0 && menubar->is_dropped)
+ {
+ /* middle click -- everywhere */
+ menubar_execute (menubar);
+ }
+ else if (mouse_on_drop)
+ menubar_execute (menubar);
+ else if (event->y > 0)
+ /* releasing the mouse button outside the menu -- close menu */
+ menubar_finish (menubar);
+ break;
+
+ case MSG_MOUSE_DRAG:
+ if (event->y == 0)
+ {
+ menubar_remove (menubar);
+ menubar_drop (menubar, menubar_get_menu_by_x_coord (menubar, event->x));
+ }
+ else if (mouse_on_drop)
+ menubar_change_selected_item (menubar, event->y);
+
+ was_drag = TRUE;
+ break;
+
+ case MSG_MOUSE_SCROLL_UP:
+ case MSG_MOUSE_SCROLL_DOWN:
+ was_drag = FALSE;
+
+ if (widget_get_state (w, WST_FOCUSED))
+ {
+ if (event->y == 0)
+ {
+ /* menubar: left/right */
+ if (msg == MSG_MOUSE_SCROLL_UP)
+ menubar_left (menubar);
+ else
+ menubar_right (menubar);
+ }
+ else if (mouse_on_drop)
+ {
+ /* drop-down menu: up/down */
+ if (msg == MSG_MOUSE_SCROLL_UP)
+ menubar_up (menubar);
+ else
+ menubar_down (menubar);
+ }
+ }
+ break;
+
+ default:
+ was_drag = FALSE;
+ break;
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+menu_entry_t *
+menu_entry_new (const char *name, long command)
+{
+ menu_entry_t *entry;
+
+ entry = g_new (menu_entry_t, 1);
+ entry->first_letter = ' ';
+ entry->text = hotkey_new (name);
+ entry->command = command;
+ entry->shortcut = NULL;
+
+ return entry;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+menu_entry_free (menu_entry_t * entry)
+{
+ if (entry != NULL)
+ {
+ hotkey_free (entry->text);
+ g_free (entry->shortcut);
+ g_free (entry);
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+menu_t *
+menu_new (const char *name, GList * entries, const char *help_node)
+{
+ menu_t *menu;
+
+ menu = g_new (menu_t, 1);
+ menu->start_x = 0;
+ menu->text = hotkey_new (name);
+ menu->entries = entries;
+ menu->max_entry_len = 1;
+ menu->max_hotkey_len = 0;
+ menu->current = 0;
+ menu->help_node = g_strdup (help_node);
+
+ return menu;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+menu_set_name (menu_t * menu, const char *name)
+{
+ hotkey_free (menu->text);
+ menu->text = hotkey_new (name);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+menu_free (menu_t * menu)
+{
+ hotkey_free (menu->text);
+ g_list_free_full (menu->entries, (GDestroyNotify) menu_entry_free);
+ g_free (menu->help_node);
+ g_free (menu);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+WMenuBar *
+menubar_new (GList * menu)
+{
+ WRect r = { 0, 0, 1, COLS };
+ WMenuBar *menubar;
+ Widget *w;
+
+ menubar = g_new0 (WMenuBar, 1);
+ w = WIDGET (menubar);
+ widget_init (w, &r, menubar_callback, menubar_mouse_callback);
+ w->pos_flags = WPOS_KEEP_HORZ | WPOS_KEEP_TOP;
+ w->options |= WOP_TOP_SELECT;
+ w->keymap = menu_map;
+ menubar_set_menu (menubar, menu);
+
+ return menubar;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+menubar_set_menu (WMenuBar * menubar, GList * menu)
+{
+ /* delete previous menu */
+ menubar_free_menu (menubar);
+ /* add new menu */
+ menubar->is_dropped = FALSE;
+ menubar->menu = menu;
+ menubar->current = 0;
+ menubar_arrange (menubar);
+ widget_set_state (WIDGET (menubar), WST_FOCUSED, FALSE);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+menubar_add_menu (WMenuBar * menubar, menu_t * menu)
+{
+ if (menu != NULL)
+ {
+ menu_arrange (menu, DIALOG (WIDGET (menubar)->owner)->get_shortcut);
+ menubar->menu = g_list_append (menubar->menu, menu);
+ }
+
+ menubar_arrange (menubar);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Properly space menubar items. Should be called when menubar is created
+ * and also when widget width is changed (i.e. upon xterm resize).
+ */
+
+void
+menubar_arrange (WMenuBar * menubar)
+{
+ int start_x = 1;
+ GList *i;
+ int gap;
+
+ if (menubar->menu == NULL)
+ return;
+
+ gap = WIDGET (menubar)->rect.cols - 2;
+
+ /* First, calculate gap between items... */
+ for (i = menubar->menu; i != NULL; i = g_list_next (i))
+ {
+ menu_t *menu = MENU (i->data);
+
+ /* preserve length here, to be used below */
+ menu->start_x = hotkey_width (menu->text) + 2;
+ gap -= menu->start_x;
+ }
+
+ if (g_list_next (menubar->menu) == NULL)
+ gap = 1;
+ else
+ gap /= (g_list_length (menubar->menu) - 1);
+
+ if (gap <= 0)
+ {
+ /* We are out of luck - window is too narrow... */
+ gap = 1;
+ }
+ else if (gap >= 3)
+ gap = 3;
+
+ /* ...and now fix start positions of menubar items */
+ for (i = menubar->menu; i != NULL; i = g_list_next (i))
+ {
+ menu_t *menu = MENU (i->data);
+ int len = menu->start_x;
+
+ menu->start_x = start_x;
+ start_x += len + gap;
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Find MenuBar widget in the dialog */
+
+WMenuBar *
+menubar_find (const WDialog * h)
+{
+ return MENUBAR (widget_find_by_type (CONST_WIDGET (h), menubar_callback));
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+/**
+ * Activate menu bar.
+ *
+ * @param menubar menu bar object
+ * @param dropped whether dropdown menus should be drooped or not
+ * @which number of active dropdown menu
+ */
+void
+menubar_activate (WMenuBar * menubar, gboolean dropped, int which)
+{
+ Widget *w = WIDGET (menubar);
+
+ widget_show (w);
+
+ if (!widget_get_state (w, WST_FOCUSED))
+ {
+ widget_set_options (w, WOP_SELECTABLE, TRUE);
+
+ menubar->is_dropped = dropped;
+ if (which >= 0)
+ menubar->current = (guint) which;
+
+ menubar->previous_widget = group_get_current_widget_id (w->owner);
+
+ /* Bring it to the top so it receives all mouse events before any other widget.
+ * See also comment in menubar_finish(). */
+ widget_select (w);
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 15:11:31 +0000