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main.def.c
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main.def.c
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/* Copyright 2011-2013 Bert Muennich
*
* This file is part of sxiv.
*
* sxiv 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.
*
* sxiv 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 sxiv. If not, see <http://www.gnu.org/licenses/>.
*/
#include "sxiv.h"
#define _MAPPINGS_CONFIG
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <libgen.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <locale.h>
#include <signal.h>
#include <sys/select.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <time.h>
#include <X11/keysym.h>
#include <X11/XF86keysym.h>
typedef struct {
struct timeval when;
bool active;
timeout_f handler;
} timeout_t;
/* timeout handler functions: */
void redraw(void);
void reset_cursor(void);
void animate(void);
void slideshow(void);
void clear_resize(void);
appmode_t mode;
arl_t arl;
img_t img;
tns_t tns;
win_t win;
fileinfo_t *files;
int filecnt, fileidx;
int alternate;
int markcnt;
int markidx;
int prefix;
bool extprefix;
bool inputting_prefix;
bool resized = false;
typedef struct {
int err;
char *cmd;
} extcmd_t;
struct {
extcmd_t f;
int fd;
unsigned int i, lastsep;
pid_t pid;
} info;
struct {
extcmd_t f;
bool warned;
} keyhandler;
timeout_t timeouts[] = {
{ { 0, 0 }, false, redraw },
{ { 0, 0 }, false, reset_cursor },
{ { 0, 0 }, false, animate },
{ { 0, 0 }, false, slideshow },
{ { 0, 0 }, false, clear_resize },
};
cursor_t imgcursor[3] = {
CURSOR_ARROW, CURSOR_ARROW, CURSOR_ARROW
};
void cleanup(void)
{
img_close(&img, false);
arl_cleanup(&arl);
tns_free(&tns);
win_close(&win);
}
char *check_and_get_path(char *filename)
{
char *path;
if (access(filename, R_OK) < 0 ||
(path = realpath(filename, NULL)) == NULL)
error(0, errno, "%s", filename);
return(path);
}
void check_add_file(char *filename, bool given)
{
char *path;
int i;
if (*filename == '\0')
return;
if (access(filename, R_OK) < 0 ||
(path = realpath(filename, NULL)) == NULL)
{
if (given)
error(0, errno, "%s", filename);
return;
}
/* If file is already present in files array, don't duplicate it */
for (i = 0; i < fileidx; i++){
if (!strcmp(files[i].path, path))
return;
}
if (fileidx == filecnt) {
filecnt *= 2;
files = erealloc(files, filecnt * sizeof(*files));
memset(&files[filecnt/2], 0, filecnt/2 * sizeof(*files));
}
files[fileidx].name = estrdup(filename);
// files[fileidx].marked = false;
files[fileidx].path = path;
if (given)
files[fileidx].flags |= FF_WARN;
fileidx++;
}
void remove_file(int n, bool manual)
{
if (n < 0 || n >= filecnt)
return;
if (filecnt == 1) {
if (!manual)
fprintf(stderr, "sxiv: no more files to display, aborting\n");
exit(manual ? EXIT_SUCCESS : EXIT_FAILURE);
}
if (files[n].flags & FF_MARK)
markcnt--;
if (files[n].path != files[n].name)
free((void*) files[n].path);
free((void*) files[n].name);
if (n + 1 < filecnt) {
if (tns.thumbs != NULL) {
memmove(tns.thumbs + n, tns.thumbs + n + 1, (filecnt - n - 1) *
sizeof(*tns.thumbs));
memset(tns.thumbs + filecnt - 1, 0, sizeof(*tns.thumbs));
}
memmove(files + n, files + n + 1, (filecnt - n - 1) * sizeof(*files));
}
filecnt--;
if (fileidx > n || fileidx == filecnt)
fileidx--;
if (alternate > n || alternate == filecnt)
alternate--;
if (markidx > n || markidx == filecnt)
markidx--;
}
void set_timeout(timeout_f handler, int time, bool overwrite)
{
int i;
for (i = 0; i < ARRLEN(timeouts); i++) {
if (timeouts[i].handler == handler) {
if (!timeouts[i].active || overwrite) {
gettimeofday(&timeouts[i].when, 0);
TV_ADD_MSEC(&timeouts[i].when, time);
timeouts[i].active = true;
}
return;
}
}
}
void reset_timeout(timeout_f handler)
{
int i;
for (i = 0; i < ARRLEN(timeouts); i++) {
if (timeouts[i].handler == handler) {
timeouts[i].active = false;
return;
}
}
}
bool check_timeouts(struct timeval *t)
{
int i = 0, tdiff, tmin = -1;
struct timeval now;
while (i < ARRLEN(timeouts)) {
if (timeouts[i].active) {
gettimeofday(&now, 0);
tdiff = TV_DIFF(&timeouts[i].when, &now);
if (tdiff <= 0) {
timeouts[i].active = false;
if (timeouts[i].handler != NULL)
timeouts[i].handler();
i = tmin = -1;
} else if (tmin < 0 || tdiff < tmin) {
tmin = tdiff;
}
}
i++;
}
if (tmin > 0 && t != NULL)
TV_SET_MSEC(t, tmin);
return tmin > 0;
}
void close_info(void)
{
if (info.fd != -1) {
kill(info.pid, SIGTERM);
close(info.fd);
info.fd = -1;
}
}
void open_info(void)
{
int pfd[2];
char w[12], h[12];
if (info.f.err != 0 || info.fd >= 0 || win.bar.h == 0)
return;
win.bar.l.buf[0] = '\0';
if (pipe(pfd) < 0)
return;
if ((info.pid = fork()) == 0) {
close(pfd[0]);
dup2(pfd[1], 1);
snprintf(w, sizeof(w), "%d", img.w);
snprintf(h, sizeof(h), "%d", img.h);
execl(info.f.cmd, info.f.cmd, files[fileidx].name, w, h, NULL);
//execl(info.f.cmd, info.f.cmd, basename((char *)files[fileidx].name), w, h, NULL);
error(EXIT_FAILURE, errno, "exec: %s", info.f.cmd);
}
close(pfd[1]);
if (info.pid < 0) {
close(pfd[0]);
} else {
fcntl(pfd[0], F_SETFL, O_NONBLOCK);
info.fd = pfd[0];
info.i = info.lastsep = 0;
}
}
void read_info(void)
{
ssize_t i, n;
char buf[BAR_L_LEN];
while (true) {
n = read(info.fd, buf, sizeof(buf));
if (n < 0 && errno == EAGAIN)
return;
else if (n == 0)
goto end;
for (i = 0; i < n; i++) {
if (buf[i] == '\n') {
if (info.lastsep == 0) {
win.bar.l.buf[info.i++] = ' ';
info.lastsep = 1;
}
} else {
win.bar.l.buf[info.i++] = buf[i];
info.lastsep = 0;
}
if (info.i + 1 == win.bar.l.size)
goto end;
}
}
end:
info.i -= info.lastsep;
win.bar.l.buf[info.i] = '\0';
win_draw(&win);
close_info();
}
void load_image(int new)
{
bool prev = new < fileidx;
static int current;
if (new < 0 || new >= filecnt)
return;
if (win.xwin != None)
win_set_cursor(&win, CURSOR_WATCH);
reset_timeout(slideshow);
if (new != current)
alternate = current;
img_close(&img, false);
while (!img_load(&img, &files[new])) {
remove_file(new, false);
if (new >= filecnt)
new = filecnt - 1;
else if (new > 0 && prev)
new--;
}
files[new].flags &= ~FF_WARN;
fileidx = current = new;
close_info();
open_info();
arl_setup(&arl, files[fileidx].path);
// ci_fit_to_win(); //reset scale on navigation
//from this fork conceptualspace/sxiv
if (img.multi.cnt > 0 && img.multi.animate)
set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
else
reset_timeout(animate);
}
bool mark_image(int n, bool on)
{
markidx = n;
if (!!(files[n].flags & FF_MARK) != on) {
files[n].flags ^= FF_MARK;
markcnt += on ? 1 : -1;
if (mode == MODE_THUMB)
tns_mark(&tns, n, on);
return true;
}
return false;
}
void bar_put(win_bar_t *bar, const char *fmt, ...)
{
size_t len = bar->size - (bar->p - bar->buf), n;
va_list ap;
va_start(ap, fmt);
n = vsnprintf(bar->p, len, fmt, ap);
bar->p += MIN(len, n);
va_end(ap);
}
#define BAR_SEP " "
void update_info(void)
{
unsigned int i, fn, fw;
const char * mark;
win_bar_t *l = &win.bar.l, *r = &win.bar.r;
/* update bar contents */
if (win.bar.h == 0)
return;
for (fw = 0, i = filecnt; i > 0; fw++, i /= 10);
mark = files[fileidx].flags & FF_MARK ? " " : "";
// mark = files[fileidx].flags & FF_MARK ? "¤ " : "";
// mark = files[fileidx].flags & FF_MARK ? "* " : "";
l->p = l->buf;
r->p = r->buf;
if (mode == MODE_THUMB) {
//show name even when caching
if (tns.loadnext < tns.end){
bar_put(r, "Loading... %0*d" BAR_SEP, fw, tns.loadnext + 1);
strncpy(l->buf, basename((char *)files[fileidx].name), l->size); }
//bar_put(r, "[%s%d] %0*d/%d", mark, markcnt, fw, fileidx + 1, filecnt, "Loading... %0*d", fw, tns.loadnext + 1);
//bar_put(l, "Loading... %0*d", fw, tns.loadnext + 1);
else if (tns.initnext < filecnt)
bar_put(r, "Caching... %0*d" BAR_SEP, fw, tns.initnext + 1);
//bar_put(r, "[%s%d] %0*d/%d", mark, markcnt, fw, fileidx + 1, filecnt, "Caching... %0*d", fw, tns.initnext + 1);
//bar_put(l, "Loading... %0*d", fw, tns.loadnext + 1);
else
//Show only the image basename() in titlebar, not the entire path.
//strncpy(l->buf, files[fileidx].name, l->size);
strncpy(l->buf, basename((char *)files[fileidx].name), l->size);
//if (strlen(mark) != 0){
// bar_put(r, "%d", markcnt);
// bar_put(r, "%s %0*d/%d", mark, fw, fileidx + 1, filecnt);
bar_put(r, "[%s%d] %0*d/%d", mark, markcnt, fw, fileidx + 1, filecnt);
//} else {
// bar_put(r, "%s %0*d/%d", mark, fw, fileidx + 1, filecnt);
//bar_put(r, "[%s%d] %0*d/%d", mark, markcnt, fw, fileidx + 1, filecnt);
//}
// bar_put(r, "%s%d %0*d/%d", mark, markcnt, fw, fileidx + 1, filecnt);
//bar_put(r, "[%s%d] %0*d/%d", mark, markcnt, fw, fileidx + 1, filecnt);
} else {
//bar_put(r, "%s", mark);
if (markcnt > 0){
// bar_put(r, "%d", markcnt);
// bar_put(r, "%s %0*d/%d", mark, fw, fileidx + 1, filecnt);
bar_put(r, "[%s%d] %0*d/%d", mark, markcnt, fw, fileidx + 1, filecnt);
} else {
bar_put(r, "%0*d/%d", fw, fileidx + 1, filecnt);
// bar_put(r, "%s %0*d/%d", mark, fw, fileidx + 1, filecnt);
}
// if (strlen(mark) > 0)
//make the counted marks on bar on imagemode (only if there's at least one image marked)
//if (strlen(mark) > 0)
//if (strlen(mark) != 0)
// bar_put(r, "[%s%d]" BAR_SEP, mark, markcnt);
//bar_put(r, "%3d%%" BAR_SEP, (int) (img.zoom * 100.0));
//bar_put(r, "[%s%d]", mark, markcnt);
if (img.ss.on) {
if (img.ss.delay % 10 != 0)
bar_put(r, "%2.1fs" BAR_SEP, (float)img.ss.delay / 10);
else
bar_put(r, "%ds" BAR_SEP, img.ss.delay / 10);
}
if (img.gamma != 0)
bar_put(r, "Gamma%+d" BAR_SEP, img.gamma);
//bar_put(r, "G%+d" BAR_SEP, img.gamma);
bar_put(r, "%3d%%" BAR_SEP, (int) (img.zoom * 100.0));
if (img.multi.cnt > 0) {
for (fn = 0, i = img.multi.cnt; i > 0; fn++, i /= 10);
bar_put(r, "%0*d/%d" BAR_SEP, fn, img.multi.sel + 1, img.multi.cnt);
}
bar_put(r, "%0*d/%d", fw, fileidx + 1, filecnt);
if (info.f.err)
strncpy(l->buf, files[fileidx].name, l->size);
}
}
int ptr_third_x(void)
{
int x, y;
win_cursor_pos(&win, &x, &y);
return MAX(0, MIN(2, (x / (win.w * 0.33))));
}
void redraw(void)
{
int t;
if (mode == MODE_IMAGE) {
img_render(&img);
if (img.ss.on) {
t = img.ss.delay * 100;
if (img.multi.cnt > 0 && img.multi.animate)
t = MAX(t, img.multi.length);
set_timeout(slideshow, t, false);
}
} else {
tns_render(&tns);
}
update_info();
win_draw(&win);
reset_timeout(redraw);
reset_cursor();
}
void reset_cursor(void)
{
int c, i;
cursor_t cursor = CURSOR_NONE;
if (mode == MODE_IMAGE) {
for (i = 0; i < ARRLEN(timeouts); i++) {
if (timeouts[i].handler == reset_cursor) {
if (timeouts[i].active) {
c = ptr_third_x();
c = MAX(fileidx > 0 ? 0 : 1, c);
c = MIN(fileidx + 1 < filecnt ? 2 : 1, c);
cursor = imgcursor[c];
}
break;
}
}
} else {
if (tns.loadnext < tns.end || tns.initnext < filecnt)
cursor = CURSOR_WATCH;
else
cursor = CURSOR_ARROW;
}
win_set_cursor(&win, cursor);
}
void animate(void)
{
if (img_frame_animate(&img)) {
redraw();
set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
}
}
void slideshow(void)
{
load_image(fileidx + 1 < filecnt ? fileidx + 1 : 0);
redraw();
}
void clear_resize(void)
{
resized = false;
}
Bool is_input_ev(Display *dpy, XEvent *ev, XPointer arg)
{
return ev->type == ButtonPress || ev->type == KeyPress;
}
void run_key_handler(const char *key, unsigned int mask)
{
pid_t pid;
FILE *pfs;
// bool marked = mode == MODE_THUMB && markcnt > 0;
//change this so when there are multiple imgs marked and on image mode you can still run some action
//(keyhandler or defaults) to those multiple images. The code before do this only on thumb mode
//bool marked = false; //mode == MODE_THUMB && markcnt > 0;
bool marked = markcnt > 0;
bool changed = false;
int f, i, pfd[2];
int fcnt = marked ? markcnt : 1;
char kstr[32];
struct stat *oldst, st;
XEvent dump;
if (keyhandler.f.err != 0) {
if (!keyhandler.warned) {
error(0, keyhandler.f.err, "%s", keyhandler.f.cmd);
keyhandler.warned = true;
}
return;
}
if (key == NULL)
return;
if (pipe(pfd) < 0) {
error(0, errno, "pipe");
return;
}
if ((pfs = fdopen(pfd[1], "w")) == NULL) {
error(0, errno, "open pipe");
close(pfd[0]), close(pfd[1]);
return;
}
oldst = emalloc(fcnt * sizeof(*oldst));
close_info();
strncpy(win.bar.l.buf, "[Keyhandler]...", win.bar.l.size);
//strncpy(win.bar.l.buf, "Running key handler...", win.bar.l.size);
//strncpy(win.bar.l.buf, " Keyhandler...", win.bar.l.size);
//bar_put(&win.bar.r, " Keyhandler...", &win.bar.l.buf);
//strncpy(win.bar.r.buf, " Keyhandler...", win.bar.r.size);
//bar_put(&win.bar.l, " Keyhandler...", win.bar.l.size);
//strncpy(win.bar.r.size, " Keyhandler...", win.bar.r.buf);
//snprintf(win.bar.l.size, " Keyhandler...", win.bar.l.buf);
//bar_put(r, "%2.1fs" BAR_SEP, (float)img.ss.delay / 10);
//snprintf(win.bar.l.buf, win.bar.l.size, "%c %i [KeyHandling..]");
//strncpy(win.bar.l.buf, "Running key handler...", win.bar.l.size);
win_draw(&win);
win_set_cursor(&win, CURSOR_WATCH);
snprintf(kstr, sizeof(kstr), "%s%s%s%s",
mask & ControlMask ? "C-" : "",
mask & Mod1Mask ? "M-" : "",
mask & ShiftMask ? "S-" : "", key);
if ((pid = fork()) == 0) {
close(pfd[1]);
dup2(pfd[0], 0);
execl(keyhandler.f.cmd, keyhandler.f.cmd, kstr, NULL);
error(EXIT_FAILURE, errno, "exec: %s", keyhandler.f.cmd);
}
close(pfd[0]);
if (pid < 0) {
error(0, errno, "fork");
fclose(pfs);
goto end;
}
for (f = i = 0; f < fcnt; i++) {
if ((marked && (files[i].flags & FF_MARK)) || (!marked && i == fileidx)) {
stat(files[i].path, &oldst[f]);
fprintf(pfs, "%s\n", files[i].name);
f++;
}
}
fclose(pfs);
while (waitpid(pid, NULL, 0) == -1 && errno == EINTR);
for (f = i = 0; f < fcnt; i++) {
if ((marked && (files[i].flags & FF_MARK)) || (!marked && i == fileidx)) {
if (stat(files[i].path, &st) != 0 ||
memcmp(&oldst[f].st_mtime, &st.st_mtime, sizeof(st.st_mtime)) != 0)
{
if (tns.thumbs != NULL) {
tns_unload(&tns, i);
tns.loadnext = MIN(tns.loadnext, i);
}
changed = true;
}
f++;
}
}
/* drop user input events that occurred while running the key handler */
while (XCheckIfEvent(win.env.dpy, &dump, is_input_ev, NULL));
end:
if (mode == MODE_IMAGE) {
if (changed) {
img_close(&img, true);
load_image(fileidx);
} else {
open_info();
}
}
free(oldst);
reset_cursor();
redraw();
}
#define MODMASK(mask) ((mask) & (ShiftMask|ControlMask|Mod1Mask))
/* Read the Readme.md to understand about the prefix key and what
* fits you best.
*/
/* Option 1 */
void on_keypress(XKeyEvent *kev)
{
int i;
unsigned int sh = 0;
KeySym ksym, shksym;
char dummy, key;
bool bound = false;
bool dirty = false;
XLookupString(kev, &key, 1, &ksym, NULL);
if (kev->state & ShiftMask) {
kev->state &= ~ShiftMask;
XLookupString(kev, &dummy, 1, &shksym, NULL);
kev->state |= ShiftMask;
if (ksym != shksym)
sh = ShiftMask;
}
if (IsModifierKey(ksym))
return;
else if (extprefix) {
run_key_handler(XKeysymToString(ksym), kev->state & ~sh);
extprefix = False;
/* I dont need this */
} else if (key >= '0' && key <= '9') {
/* number prefix for commands */
prefix = prefix * 10 + (int) (key - '0');
return;
} else for (i = 0; i < ARRLEN(keys); i++) {
if (keys[i].ksym == ksym &&
MODMASK(keys[i].mask | sh) == MODMASK(kev->state) &&
keys[i].cmd >= 0 && keys[i].cmd < CMD_COUNT &&
(cmds[keys[i].cmd].mode < 0 || cmds[keys[i].cmd].mode == mode))
{
if (cmds[keys[i].cmd].func(keys[i].arg))
dirty = true;
bound = true;
}
}
if (!bound)
run_key_handler(XKeysymToString(ksym), kev->state & ~sh);
if (dirty)
redraw();
prefix = 0;
}
/* Option 2 */
//void on_keypress(XKeyEvent *kev)
//{
// int i;
// unsigned int sh = 0;
// KeySym ksym, shksym;
// char dummy, key;
// bool dirty = false;
//
// XLookupString(kev, &key, 1, &ksym, NULL);
//
// if (kev->state & ShiftMask) {
// kev->state &= ~ShiftMask;
// XLookupString(kev, &dummy, 1, &shksym, NULL);
// kev->state |= ShiftMask;
// if (ksym != shksym)
// sh = ShiftMask;
// }
// if (IsModifierKey(ksym))
// return;
//
// if (ksym == XK_Escape && MODMASK(kev->state) == 0){
// inputting_prefix = true;
// prefix = 0;
// return;
// }
//
// if ((inputting_prefix == true) && (key >= '0' && key <= '9'))
// {
// /* number prefix for commands */
// prefix = prefix * 10 + (int) (key - '0');
// return;
// } else for (i = 0; i < ARRLEN(keys); i++) {
// if ((dirty == true) && (keys[i].ksym == 0))
// break;
//
// if (keys[i].ksym == ksym &&
// MODMASK(keys[i].mask | sh) == MODMASK(kev->state) &&
// keys[i].cmd >= 0 && keys[i].cmd < CMD_COUNT &&
// (cmds[keys[i].cmd].mode < 0 || cmds[keys[i].cmd].mode == mode))
// {
// if (cmds[keys[i].cmd].func(keys[i].arg))
// dirty = true;
// }
// }
//
// if (i == ARRLEN(keys) && (!dirty))
// run_key_handler(XKeysymToString(ksym), kev->state & ~sh);
//
// if (dirty)
// redraw();
//
// prefix = 0;
// inputting_prefix = 0;
//}
/* Default one */
//void on_keypress(XKeyEvent *kev)
//{
// int i;
// unsigned int sh = 0;
// KeySym ksym, shksym;
// char dummy, key;
// bool dirty = false;
//
// XLookupString(kev, &key, 1, &ksym, NULL);
//
// if (kev->state & ShiftMask) {
// kev->state &= ~ShiftMask;
// XLookupString(kev, &dummy, 1, &shksym, NULL);
// kev->state |= ShiftMask;
// if (ksym != shksym)
// sh = ShiftMask;
// }
// if (IsModifierKey(ksym))
// return;
// else if (extprefix) {
// run_key_handler(XKeysymToString(ksym), kev->state & ~sh);
// extprefix = False;
// } else if (key >= '0' && key <= '9') {
// /* number prefix for commands */
// prefix = prefix * 10 + (int) (key - '0');
// return;
// } else for (i = 0; i < ARRLEN(keys); i++) {
// if (keys[i].ksym == ksym &&
// MODMASK(keys[i].mask | sh) == MODMASK(kev->state) &&
// keys[i].cmd >= 0 && keys[i].cmd < CMD_COUNT &&
// (cmds[keys[i].cmd].mode < 0 || cmds[keys[i].cmd].mode == mode))
// {
// if (cmds[keys[i].cmd].func(keys[i].arg))
// dirty = true;
// }
// }
// if (dirty)
// redraw();
// prefix = 0;
//}
void on_buttonpress(XButtonEvent *bev)
{
int i, sel;
bool dirty = false;
static Time firstclick;
if (mode == MODE_IMAGE) {
set_timeout(reset_cursor, TO_CURSOR_HIDE, true); /* Cursor watch */
reset_cursor();
for (i = 0; i < ARRLEN(buttons); i++) {
if (buttons[i].button == bev->button &&
MODMASK(buttons[i].mask) == MODMASK(bev->state) &&
buttons[i].cmd >= 0 && buttons[i].cmd < CMD_COUNT &&
(cmds[buttons[i].cmd].mode < 0 || cmds[buttons[i].cmd].mode == mode))
{
if (cmds[buttons[i].cmd].func(buttons[i].arg))
dirty = true;
}
}
if (dirty)
redraw();
} else {
/* thumbnail mode (hard-coded) */
switch (bev->button) {
case Button1:
if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
if (sel != fileidx) {
tns_highlight(&tns, fileidx, false);
tns_highlight(&tns, sel, true);
fileidx = sel;
firstclick = bev->time;
redraw();
} else if (bev->time - firstclick <= TO_DOUBLE_CLICK) {
mode = MODE_IMAGE;
set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
load_image(fileidx);
redraw();
} else {
firstclick = bev->time;
}
}
break;
case Button3:
if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
bool on = !(files[sel].flags & FF_MARK);
XEvent e;
for (;;) {
if (sel >= 0 && mark_image(sel, on))
redraw();
XMaskEvent(win.env.dpy,
ButtonPressMask | ButtonReleaseMask | PointerMotionMask, &e);
if (e.type == ButtonPress || e.type == ButtonRelease)
break;
while (XCheckTypedEvent(win.env.dpy, MotionNotify, &e));
sel = tns_translate(&tns, e.xbutton.x, e.xbutton.y);
}
}
break;
case Button4:
case Button5:
if (tns_scroll(&tns, bev->button == Button4 ? DIR_UP : DIR_DOWN,
(bev->state & ControlMask) != 0))
redraw();
break;
}
}
prefix = 0;
}
const struct timespec ten_ms = {0, 10000000};
void run(void)
{
int xfd;
fd_set fds;
struct timeval timeout;
bool discard, init_thumb, load_thumb, to_set;
XEvent ev, nextev;
while (true) {
to_set = check_timeouts(&timeout);
init_thumb = mode == MODE_THUMB && tns.initnext < filecnt;
load_thumb = mode == MODE_THUMB && tns.loadnext < tns.end;
if ((init_thumb || load_thumb || to_set || info.fd != -1 ||
arl.fd != -1) && XPending(win.env.dpy) == 0)
{
if (load_thumb) {
set_timeout(redraw, TO_REDRAW_THUMBS, false);
if (!tns_load(&tns, tns.loadnext, false, false)) {
remove_file(tns.loadnext, false);
tns.dirty = true;
}
if (tns.loadnext >= tns.end)
redraw();
} else if (init_thumb) {
set_timeout(redraw, TO_REDRAW_THUMBS, false);
if (!tns_load(&tns, tns.initnext, false, true))
remove_file(tns.initnext, false);
} else {
xfd = ConnectionNumber(win.env.dpy);
FD_ZERO(&fds);
FD_SET(xfd, &fds);
if (info.fd != -1) {
FD_SET(info.fd, &fds);
xfd = MAX(xfd, info.fd);
}
if (arl.fd != -1) {
FD_SET(arl.fd, &fds);
xfd = MAX(xfd, arl.fd);
}
select(xfd + 1, &fds, 0, 0, to_set ? &timeout : NULL);
if (info.fd != -1 && FD_ISSET(info.fd, &fds))
read_info();
if (arl.fd != -1 && FD_ISSET(arl.fd, &fds)) {
if (arl_handle(&arl)) {
/* when too fast, imlib2 can't load the image */
nanosleep(&ten_ms, NULL);
img_close(&img, true);
load_image(fileidx);
redraw();
}
}
}
continue;
}
do {
XNextEvent(win.env.dpy, &ev);
discard = false;
if (XEventsQueued(win.env.dpy, QueuedAlready) > 0) {
XPeekEvent(win.env.dpy, &nextev);
switch (ev.type) {
case ConfigureNotify:
case MotionNotify:
discard = ev.type == nextev.type;
break;
case KeyPress:
discard = (nextev.type == KeyPress || nextev.type == KeyRelease)
&& ev.xkey.keycode == nextev.xkey.keycode;
break;
}
}
} while (discard);
switch (ev.type) {
/* handle events */
case ButtonPress:
on_buttonpress(&ev.xbutton);
break;
case ClientMessage:
if ((Atom) ev.xclient.data.l[0] == atoms[ATOM_WM_DELETE_WINDOW])
cmds[g_quit].func(0);
break;
case ConfigureNotify:
if (win_configure(&win, &ev.xconfigure)) {
if (mode == MODE_IMAGE) {
img.dirty = true;
img.checkpan = true;
} else {
tns.dirty = true;
}
if (!resized) {
redraw();
set_timeout(clear_resize, TO_REDRAW_RESIZE, false);
resized = true;
} else {
set_timeout(redraw, TO_REDRAW_RESIZE, false);
}
}
break;
case KeyPress:
on_keypress(&ev.xkey);
break;
case MotionNotify:
if (mode == MODE_IMAGE) {
set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
reset_cursor();
}
break;
}
}
}
int fncmp(const void *a, const void *b)
{
return strcoll(((fileinfo_t*) a)->name, ((fileinfo_t*) b)->name);
}
void sigchld(int sig)
{
while (waitpid(-1, NULL, WNOHANG) > 0);
}
void setup_signal(int sig, void (*handler)(int sig))
{
struct sigaction sa;
sa.sa_handler = handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART | SA_NOCLDSTOP;
if (sigaction(sig, &sa, 0) == -1)
error(EXIT_FAILURE, errno, "signal %d", sig);
}
int main(int argc, char **argv)