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61cabdac13
This adds a new state, 'is_searching'. While active, input is re-directed, and stored in a search buffer. In the future, we'll use this buffer and search for its content in the scrollback buffer, and move the view and create a selection on matches. When rendering in 'is_searching', everything is dimmed. In the future, we'll render the current search buffer on-top of the dimmed "regular" terminal output.
107 lines
3 KiB
C
107 lines
3 KiB
C
#include "search.h"
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#include <wchar.h>
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#include <xkbcommon/xkbcommon-compose.h>
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#define LOG_MODULE "search"
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#define LOG_ENABLE_DBG 1
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#include "log.h"
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#include "render.h"
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void
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search_begin(struct terminal *term)
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{
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LOG_DBG("search: begin");
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free(term->search.buf);
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term->search.buf = NULL;
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term->search.len = 0;
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term->search.sz = 0;
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term->is_searching = true;
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render_refresh(term);
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}
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void
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search_cancel(struct terminal *term)
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{
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LOG_DBG("search: cancel");
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free(term->search.buf);
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term->search.buf = NULL;
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term->search.len = 0;
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term->search.sz = 0;
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term->is_searching = false;
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render_refresh(term);
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}
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void
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search_input(struct terminal *term, uint32_t key, xkb_keysym_t sym, xkb_mod_mask_t mods)
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{
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LOG_DBG("search: input: sym=%d/0x%x, mods=0x%08x", sym, sym, mods);
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const xkb_mod_mask_t ctrl = 1 << term->kbd.mod_ctrl;
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//const xkb_mod_mask_t alt = 1 << term->kbd.mod_alt;
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//const xkb_mod_mask_t shift = 1 << term->kbd.mod_shift;
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//const xkb_mod_mask_t meta = 1 << term->kbd.mod_meta;
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enum xkb_compose_status compose_status = xkb_compose_state_get_status(
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term->kbd.xkb_compose_state);
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if ((mods == 0 && sym == XKB_KEY_Escape) || (mods == ctrl && sym == XKB_KEY_g))
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search_cancel(term);
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else if (mods == 0 && sym == XKB_KEY_BackSpace) {
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if (term->search.len > 0)
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term->search.buf[--term->search.len] = L'\0';
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}
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else {
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uint8_t buf[64] = {0};
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int count = 0;
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if (compose_status == XKB_COMPOSE_COMPOSED) {
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count = xkb_compose_state_get_utf8(
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term->kbd.xkb_compose_state, (char *)buf, sizeof(buf));
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xkb_compose_state_reset(term->kbd.xkb_compose_state);
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} else {
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count = xkb_state_key_get_utf8(
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term->kbd.xkb_state, key, (char *)buf, sizeof(buf));
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}
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const char *src = (const char *)buf;
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mbstate_t ps = {0};
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size_t wchars = mbsnrtowcs(NULL, &src, count, 0, &ps);
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if (wchars == -1) {
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LOG_ERRNO("failed to convert %.*s to wchars", count, buf);
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return;
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}
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while (term->search.len + wchars >= term->search.sz) {
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size_t new_sz = term->search.sz == 0 ? 64 : term->search.sz * 2;
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wchar_t *new_buf = realloc(term->search.buf, new_sz * sizeof(term->search.buf[0]));
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if (new_buf == NULL) {
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LOG_ERRNO("failed to resize search buffer");
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return;
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}
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term->search.buf = new_buf;
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term->search.sz = new_sz;
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}
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assert(term->search.len + wchars < term->search.sz);
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memset(&ps, 0, sizeof(ps));
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mbsnrtowcs(&term->search.buf[term->search.len], &src, count,
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term->search.sz - term->search.len - 1, &ps);
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term->search.len += wchars;
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term->search.buf[term->search.len] = L'\0';
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}
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LOG_DBG("search: buffer: %S", term->search.buf);
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render_refresh(term);
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}
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