qulogic/libgnt

Fix arrow keys
fix-arrow-keys
2019-02-20, Petteri Pitkänen
7ac801527b0b
Fix arrow keys

The key-tree expects that for arrow keys the terminal transmits codes that
are defined in the terminfo database, but these codes are transmitted only
in application mode. To make the arrow key handling portable across
terminals, and to prevent the need for manually translating these codes, put
the terminal into application mode by calling ncurses keypad().

Fixes #12676.
/*
* GNT - The GLib Ncurses Toolkit
*
* GNT is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This library 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 2 of the License, or
* (at your option) any later version.
*
* This program 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/**
* 1. Buddylist is aligned on the left.
* 2. The rest of the screen is split into MxN grid for conversation windows.
* - M = split-h in ~/.gntrc:[irssi]
* - N = split-v in ~/.gntrc:[irssi]
* - Press alt-shift-k/j/l/h to move the selected window to the frame
* above/below/left/right of the current frame.
* 3. All the other windows are always centered.
*/
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "gntinternal.h"
#include "gnt.h"
#include "gntbox.h"
#include "gntmenu.h"
#include "gntstyle.h"
#include "gntwm.h"
#include "gntwindow.h"
#include "gntlabel.h"
#define TYPE_IRSSI (irssi_get_type())
typedef struct _Irssi
{
GntWM inherit;
int vert;
int horiz;
/* This is changed whenever the buddylist is opened/closed or resized. */
int buddylistwidth;
} Irssi;
typedef struct _IrssiClass
{
GntWMClass inherit;
} IrssiClass;
GType irssi_get_type(void);
void gntwm_init(GntWM **wm);
static void (*org_new_window)(GntWM *wm, GntWidget *win);
static void
get_xywh_for_frame(Irssi *irssi, int hor, int vert, int *x, int *y, int *w, int *h)
{
int width, height, rx, ry;
width = (getmaxx(stdscr) - irssi->buddylistwidth) / irssi->horiz;
height = (getmaxy(stdscr) - 1) / irssi->vert;
if (width) {
rx = irssi->buddylistwidth;
} else {
rx = 0;
width = getmaxx(stdscr) / irssi->horiz;
}
if (hor)
rx += hor * width;
if (rx)
rx++;
ry = 0;
if (vert)
ry += vert * height + 1;
if (x) *x = rx;
if (y) *y = ry;
if (w) {
*w = (hor == irssi->horiz - 1) ? (getmaxx(stdscr) - rx) : (width - 1);
}
if (h) {
*h = (vert == irssi->vert - 1) ? (getmaxy(stdscr) - 1 - ry) : (height - !!vert);
}
}
static void
draw_line_separators(Irssi *irssi)
{
int x, y;
int width, height;
wclear(stdscr);
/* Draw the separator for the buddylist */
if (irssi->buddylistwidth)
mvwvline(stdscr, 0, irssi->buddylistwidth,
ACS_VLINE | COLOR_PAIR(GNT_COLOR_NORMAL), getmaxy(stdscr) - 1);
/* Now the separators for the conversation windows */
width = (getmaxx(stdscr) - irssi->buddylistwidth) / irssi->horiz;
height = (getmaxy(stdscr) - 1) / irssi->vert;
for (x = 1; x < irssi->horiz; x++) {
mvwvline(stdscr, 0, irssi->buddylistwidth + x * width,
ACS_VLINE | COLOR_PAIR(GNT_COLOR_NORMAL), getmaxy(stdscr) - 1);
}
for (y = 1; y < irssi->vert; y++) {
mvwhline(stdscr, y * height, irssi->buddylistwidth + 1, ACS_HLINE | COLOR_PAIR(GNT_COLOR_NORMAL),
getmaxx(stdscr) - irssi->buddylistwidth);
for (x = 1; x < irssi->horiz; x++) {
mvwaddch(stdscr, y * height, x * width + irssi->buddylistwidth, ACS_PLUS | COLOR_PAIR(GNT_COLOR_NORMAL));
}
if (irssi->buddylistwidth)
mvwaddch(stdscr, y * height, irssi->buddylistwidth, ACS_LTEE | COLOR_PAIR(GNT_COLOR_NORMAL));
}
}
static gboolean
is_budddylist(GntWidget *win)
{
const char *name = gnt_widget_get_name(win);
if (name && strcmp(name, "buddylist") == 0)
return TRUE;
return FALSE;
}
static void
remove_border_set_position_size(GntWM *wm, GntWidget *win, int x, int y, int w, int h)
{
gnt_box_set_toplevel(GNT_BOX(win), FALSE);
GNT_WIDGET_SET_FLAGS(win, GNT_WIDGET_CAN_TAKE_FOCUS);
gnt_widget_set_position(win, x, y);
mvwin(win->window, y, x);
gnt_widget_set_size(win, (w < 0) ? -1 : w + 2, h + 2);
}
static void
irssi_new_window(GntWM *wm, GntWidget *win)
{
const char *name;
int x, y, w, h;
g_return_if_fail(win != NULL);
g_return_if_fail(wm != NULL);
name = gnt_widget_get_name(win);
if (!name || !strstr(name, "conversation-window")) {
if (!GNT_IS_MENU(win) && !GNT_WIDGET_IS_FLAG_SET(win, GNT_WIDGET_TRANSIENT)) {
if ((!name || strcmp(name, "buddylist"))) {
gnt_widget_get_size(win, &w, &h);
x = (getmaxx(stdscr) - w) / 2;
y = (getmaxy(stdscr) - h) / 2;
gnt_widget_set_position(win, x, y);
mvwin(win->window, y, x);
} else {
gnt_window_set_maximize(GNT_WINDOW(win), GNT_WINDOW_MAXIMIZE_Y);
remove_border_set_position_size(wm, win, 0, 0, -1, getmaxy(stdscr) - 1);
gnt_widget_get_size(win, &((Irssi*)wm)->buddylistwidth, NULL);
draw_line_separators((Irssi*)wm);
}
}
org_new_window(wm, win);
return;
}
/* The window we have here is a conversation window. */
/* XXX: There should be some way to remember which frame a conversation window
* was in the last time. Perhaps save them in some ~/.gntpositionirssi or some
* such. */
get_xywh_for_frame((Irssi*)wm, 0, 0, &x, &y, &w, &h);
remove_border_set_position_size(wm, win, x, y, w, h);
org_new_window(wm, win);
}
static void
irssi_window_resized(GntWM *wm, GntNode *node)
{
if (!is_budddylist(node->me))
return;
gnt_widget_get_size(node->me, &((Irssi*)wm)->buddylistwidth, NULL);
draw_line_separators((Irssi*)wm);
}
static gboolean
irssi_close_window(GntWM *wm, GntWidget *win)
{
if (is_budddylist(win))
((Irssi*)wm)->buddylistwidth = 0;
return FALSE;
}
static gboolean
update_conv_window_title(GntNode *node)
{
char title[256];
int x, y;
snprintf(title, sizeof(title), "%d: %s",
GPOINTER_TO_INT(g_object_get_data(G_OBJECT(node->me), "irssi-index")) + 1,
GNT_BOX(node->me)->title);
getyx(node->window, y, x);
wbkgdset(node->window, '\0' | COLOR_PAIR(gnt_widget_has_focus(node->me) ? GNT_COLOR_TITLE : GNT_COLOR_TITLE_D));
mvwaddstr(node->window, 0, 0, title);
(void)wmove(node->window, y, x);
if (!gnt_is_refugee()) {
update_panels();
doupdate();
}
return FALSE;
}
static void
irssi_update_window(GntWM *wm, GntNode *node)
{
GntWidget *win = node->me;
const char *name = gnt_widget_get_name(win);
if (!name || !GNT_IS_BOX(win) || !strstr(name, "conversation-window"))
return;
g_object_set_data(G_OBJECT(win), "irssi-index", GINT_TO_POINTER(g_list_index(wm->cws->list, win)));
g_timeout_add(0, (GSourceFunc)update_conv_window_title, node);
}
static void
find_window_position(Irssi *irssi, GntWidget *win, int *h, int *v)
{
int x, y;
int width, height;
gnt_widget_get_position(win, &x, &y);
width = (getmaxx(stdscr) - irssi->buddylistwidth) / irssi->horiz;
height = (getmaxy(stdscr) - 1) / irssi->vert;
if (h)
*h = width ? (x - irssi->buddylistwidth) / width : x / (getmaxx(stdscr) / irssi->horiz);
if (v)
*v = y / height;
}
static gboolean
move_direction(GntBindable *bindable, GList *list)
{
GntWM *wm = GNT_WM(bindable);
Irssi *irssi = (Irssi*)wm;
int vert, hor;
int x, y, w, h;
GntWidget *win;
if (wm->cws->ordered == NULL || is_budddylist(win = GNT_WIDGET(wm->cws->ordered->data)))
return FALSE;
find_window_position(irssi, win, &hor, &vert);
switch (GPOINTER_TO_INT(list->data)) {
case 'k':
vert = MAX(0, vert - 1);
break;
case 'j':
vert = MIN(vert + 1, irssi->vert - 1);
break;
case 'l':
hor = MIN(hor + 1, irssi->horiz - 1);
break;
case 'h':
hor = MAX(0, hor - 1);
break;
}
get_xywh_for_frame(irssi, hor, vert, &x, &y, &w, &h);
gnt_wm_move_window(wm, win, x, y);
gnt_wm_resize_window(wm, win, w, h);
return TRUE;
}
static void
refresh_window(GntWidget *widget, GntNode *node, Irssi *irssi)
{
int vert, hor;
int x, y, w, h;
const char *name;
if (!GNT_IS_WINDOW(widget))
return;
if (is_budddylist(widget)) {
return;
}
name = gnt_widget_get_name(widget);
if (name && strstr(name, "conversation-window")) {
int cx, cy, cw, ch;
gnt_widget_get_position(widget, &cx, &cy);
gnt_widget_get_size(widget, &cw, &ch);
find_window_position(irssi, widget, &hor, &vert);
get_xywh_for_frame(irssi, hor, vert, &x, &y, &w, &h);
if (x != cx || y != cy)
gnt_wm_move_window(GNT_WM(irssi), widget, x, y);
if (w != cw || h != ch)
gnt_wm_resize_window(GNT_WM(irssi), widget, w, h);
}
}
static void
irssi_terminal_refresh(GntWM *wm)
{
draw_line_separators((Irssi*)wm);
g_hash_table_foreach(wm->nodes, (GHFunc)refresh_window, wm);
}
static void
irssi_class_init(IrssiClass *klass)
{
GntWMClass *pclass = GNT_WM_CLASS(klass);
org_new_window = pclass->new_window;
pclass->new_window = irssi_new_window;
pclass->window_resized = irssi_window_resized;
pclass->close_window = irssi_close_window;
pclass->window_update = irssi_update_window;
pclass->terminal_refresh = irssi_terminal_refresh;
gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "move-up", move_direction,
"\033" "K", GINT_TO_POINTER('k'), NULL);
gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "move-down", move_direction,
"\033" "J", GINT_TO_POINTER('j'), NULL);
gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "move-right", move_direction,
"\033" "L", GINT_TO_POINTER('l'), NULL);
gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "move-left", move_direction,
"\033" "H", GINT_TO_POINTER('h'), NULL);
gnt_style_read_actions(G_OBJECT_CLASS_TYPE(klass), GNT_BINDABLE_CLASS(klass));
GNTDEBUG;
}
void gntwm_init(GntWM **wm)
{
char *style = NULL;
Irssi *irssi;
irssi = g_object_new(TYPE_IRSSI, NULL);
*wm = GNT_WM(irssi);
style = gnt_style_get_from_name("irssi", "split-v");
irssi->vert = style ? atoi(style) : 1;
g_free(style);
style = gnt_style_get_from_name("irssi", "split-h");
irssi->horiz = style ? atoi(style) : 1;
g_free(style);
irssi->vert = MAX(irssi->vert, 1);
irssi->horiz = MAX(irssi->horiz, 1);
irssi->buddylistwidth = 0;
}
GType irssi_get_type(void)
{
static GType type = 0;
if(type == 0) {
static const GTypeInfo info = {
sizeof(IrssiClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc)irssi_class_init,
NULL,
NULL, /* class_data */
sizeof(Irssi),
0, /* n_preallocs */
NULL, /* instance_init */
NULL
};
type = g_type_register_static(GNT_TYPE_WM,
"GntIrssi",
&info, 0);
}
return type;
}