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#include <string.h>
#include "input_field.h"
#include "array.h"
#include "graphics.h"
int compare(const void *a, const void *b) {
return strlen(((item_display_t*)a)->item->text) > strlen(((item_display_t*)b)->item->text);
}
void filter_items(client_state* state) {
if (!state->items) return;
// get null terminated input buffer
size_t len = array_size(state->input_buffer);
char input_buffer_string[len + 1];
memcpy(input_buffer_string, state->input_buffer, len);
input_buffer_string[len] = '\0';
// add all strings with substring
array_clear(state->filtered_items);
array_for_all(item_t, i, state->items) {
if (strstr(i->text, input_buffer_string) != NULL) {
array_add(state->filtered_items, (item_display_t){ .item = i });
}
}
if (array_size(state->input_buffer)) qsort(state->filtered_items, array_size(state->filtered_items), sizeof(item_display_t), compare);
// select item
if (array_size(state->filtered_items) > 0) state->selected_filtered_item = 0;
else state->selected_filtered_item = -1;
// lay out items
float offset = 0;
array_for_all(item_display_t, display, state->filtered_items) {
display->offset = offset;
if (state->lines > 0) offset += state->line_height;
else offset += display->item->pixel_len + state->horizontal_spacing;
}
}
void update_text_buffer(client_state* state) {
filter_items(state);
destroy_text_buffer(&state->input_buffer_grafix);
init_text_buffer(state, &state->input_buffer_grafix, state->input_buffer, array_size(state->input_buffer));
}
bool type_key(client_state* state, xkb_keysym_t keysym) {
bool ctrl = xkb_state_mod_name_is_active(state->xkb_state, XKB_MOD_NAME_CTRL, XKB_STATE_MODS_EFFECTIVE);
bool alt = xkb_state_mod_name_is_active(state->xkb_state, XKB_MOD_NAME_ALT, XKB_STATE_MODS_EFFECTIVE);
// exit app
if ((keysym == XKB_KEY_c && ctrl) ||
(keysym == XKB_KEY_g && ctrl) ||
(keysym == XKB_KEY_Escape)) {
state->running = false;
state->exit_code = EXIT_FAILURE;
return false;
}
// complete
if ((keysym == XKB_KEY_i && ctrl && alt) || keysym == XKB_KEY_Tab) {
if (state->selected_filtered_item != -1) {
char* selected = state->filtered_items[state->selected_filtered_item].item->text;
size_t len = strlen(selected);
array_free(state->input_buffer);
state->input_buffer = array_new(char, len);
memcpy(state->input_buffer, selected, len);
update_text_buffer(state);
}
return true;
}
// select next
if ((keysym == XKB_KEY_n && ctrl) || keysym == XKB_KEY_Right || keysym == XKB_KEY_Down) {
state->selected_filtered_item = MIN(state->selected_filtered_item + 1, array_size(state->filtered_items) - 1);
return true;
}
// select previous
if ((keysym == XKB_KEY_p && ctrl) || keysym == XKB_KEY_Left || keysym == XKB_KEY_Up) {
state->selected_filtered_item = MAX(state->selected_filtered_item - 1, 0);
return true;
}
// submit line
if (keysym == XKB_KEY_Return || keysym == XKB_KEY_KP_Enter) {
submit_line(state);
return false;
}
// delete
if (keysym == XKB_KEY_BackSpace || keysym == XKB_KEY_Delete) {
if (ctrl) {
array_clear(state->input_buffer);
} else {
array_pop(state->input_buffer);
}
update_text_buffer(state);
return true;
}
// type char into buffer
char buf[16] = {0};
int len = xkb_keysym_to_utf8(keysym, buf, sizeof(buf));
if (len > 0) {
for (int i = 0; i < strlen(buf); i++) {
array_add(state->input_buffer, buf[i]);
}
update_text_buffer(state);
return true;
}
return false;
}
void submit_line(client_state* state) {
if (state->exact_match) {
if (state->selected_filtered_item == -1) return;
printf("%s\n", state->filtered_items[state->selected_filtered_item].item->text);
}
else {
if (state->selected_filtered_item == -1) printf("%.*s\n", (int)array_size(state->input_buffer), state->input_buffer);
else printf("%s\n", state->filtered_items[state->selected_filtered_item].item->text);
}
state->running = false;
state->exit_code = EXIT_SUCCESS;
}
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