code-style: various cleanups (#356)
* run_key_handler: make the logic easier to follow * remove timeout_t the typedef is not needed. inline the declaration similar to the other static structs. * simplify estrdup reuse emalloc, instead of calling malloc and null-checking. * win_clear: initialize `e` right away * process_bindings: explicitly check against NULL most pointer checks in the codebase do explicit check. * use a named constant instead of magic number also changes the padding from 3 to 4 bytes according to [0]. but i couldn't find any situtation where this mattered, so perhaps the current padding is enough. but doesn't hurt adding one more byte. [0]: https://nullprogram.com/blog/2017/10/06/ Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/356 Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
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36
main.c
36
main.c
@ -50,12 +50,6 @@
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(tv)->tv_usec += (t) % 1000 * 1000; \
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}
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typedef struct {
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struct timeval when;
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bool active;
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timeout_f handler;
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} timeout_t;
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typedef struct {
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int err;
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char *cmd;
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@ -98,12 +92,16 @@ static struct {
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bool title_dirty;
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static timeout_t timeouts[] = {
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{ { 0, 0 }, false, redraw },
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{ { 0, 0 }, false, reset_cursor },
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{ { 0, 0 }, false, slideshow },
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{ { 0, 0 }, false, animate },
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{ { 0, 0 }, false, clear_resize },
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static struct {
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timeout_f handler;
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struct timeval when;
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bool active;
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} timeouts[] = {
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{ redraw },
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{ reset_cursor },
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{ slideshow },
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{ animate },
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{ clear_resize },
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};
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/**************************
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@ -611,14 +609,12 @@ static bool run_key_handler(const char *key, unsigned int mask)
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/* drop user input events that occurred while running the key handler */
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while (XCheckIfEvent(win.env.dpy, &dump, is_input_ev, NULL));
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if (mode == MODE_IMAGE) {
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if (changed) {
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img_close(&img, true);
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load_image(fileidx);
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}
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}
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if (mode == MODE_THUMB || !changed)
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if (mode == MODE_IMAGE && changed) {
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img_close(&img, true);
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load_image(fileidx);
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} else {
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open_info();
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}
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free(oldst);
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reset_cursor();
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return true;
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@ -633,7 +629,7 @@ static bool process_bindings(const keymap_t *bindings, unsigned int len, KeySym
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for (i = 0; i < len; i++) {
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if (bindings[i].ksym_or_button == ksym_or_button &&
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MODMASK(bindings[i].mask | implicit_mod) == MODMASK(state) &&
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bindings[i].cmd.func &&
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bindings[i].cmd.func != NULL &&
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(bindings[i].cmd.mode == MODE_ALL || bindings[i].cmd.mode == mode))
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{
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if (bindings[i].cmd.func(bindings[i].arg))
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8
util.c
8
util.c
@ -60,14 +60,8 @@ void* erealloc(void *ptr, size_t size)
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char* estrdup(const char *s)
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{
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char *d;
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size_t n = strlen(s) + 1;
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d = malloc(n);
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if (d == NULL)
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error(EXIT_FAILURE, errno, NULL);
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memcpy(d, s, n);
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return d;
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return memcpy(emalloc(n), s, n);
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}
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void error(int eval, int err, const char* fmt, ...)
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12
window.c
12
window.c
@ -33,6 +33,7 @@
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#if HAVE_LIBFONTS
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#include "utf8.h"
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#define UTF8_PADDING 4 /* utf8_decode requires 4 bytes of zero padding */
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static XftFont *font;
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static double fontsize;
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#define TEXTWIDTH(win, text, len) \
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@ -112,7 +113,7 @@ void win_init(win_t *win)
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#if HAVE_LIBFONTS
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const char *bar_fg, *bar_bg, *f;
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static char lbuf[512 + 3], rbuf[64 + 3];
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static char lbuf[512 + UTF8_PADDING], rbuf[64 + UTF8_PADDING];
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#endif
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memset(win, 0, sizeof(win_t));
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@ -153,9 +154,8 @@ void win_init(win_t *win)
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win->bar.l.buf = lbuf;
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win->bar.r.buf = rbuf;
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/* 3 padding bytes needed by utf8_decode */
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win->bar.l.size = sizeof(lbuf) - 3;
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win->bar.r.size = sizeof(rbuf) - 3;
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win->bar.l.size = sizeof(lbuf) - UTF8_PADDING;
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win->bar.r.size = sizeof(rbuf) - UTF8_PADDING;
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win->bar.h = options->hide_bar ? 0 : barheight;
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win->bar.top = TOP_STATUSBAR;
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#endif /* HAVE_LIBFONTS */
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@ -388,9 +388,7 @@ void win_toggle_bar(win_t *win)
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void win_clear(win_t *win)
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{
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win_env_t *e;
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e = &win->env;
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win_env_t *e = &win->env;
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if (win->w > win->buf.w || win->h + win->bar.h > win->buf.h) {
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XFreePixmap(e->dpy, win->buf.pm);
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