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added image previews using ueberzug

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nova
2025-08-06 22:25:39 +02:00
parent ec4d2dec8b
commit 7ab04a5a87
4 changed files with 50 additions and 2 deletions
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39
file_previews.c
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@@ -3,8 +3,14 @@
#include <string.h>
#include "defines.h"
static FILE *ueberzug = NULL;
extern unsigned int terminal_height;
extern unsigned int terminal_width;
char previewd;
char* text(char *path, unsigned long *file_size);
void images_print(char *file_name);
void images_clear();
char* generic(char *path);
char* get_mimetype(char *path){
@@ -43,6 +49,14 @@ char* preview_file(char *file_name, unsigned long file_size){
} else {
file_buffer = generic(file_name);
}
if (strstr(mime, "image")) {
images_print(file_name);
previewd = 1;
} else {
images_clear();
}
free(mime);
return file_buffer;
@@ -58,6 +72,28 @@ char* text(char *path, unsigned long *file_size){
return "failed reading file";
}
}
void images_clear() {
if (previewd == 1) {
fprintf(ueberzug, "{\"action\": \"remove\", \
\"identifier\": \"preview\"}\n");
fflush(ueberzug);
previewd = 0;
}
}
void images_print(char *file_name) {
char *path=getcwd(NULL, 0);
fprintf(ueberzug, "{\"action\": \"remove\", \
\"identifier\": \"preview\"}\n");
fprintf(ueberzug, "{\"action\":\"add\", \
\"identifier\":\"preview\", \
\"max_height\":%d, \
\"max_width\":%d, \
\"y\":0, \
\"x\":%d, \
\"path\":\"%s/%s\"}\n", terminal_height, terminal_width/2, terminal_width/2, path, file_name);
fflush(ueberzug);
free(path);
}
char* generic(char *path){
char *cmd = concat("file ./\"", path);
cmd = concat(cmd, "\"");
@@ -73,3 +109,6 @@ char* generic(char *path){
return "failed executing shell command \"file\"";
}
}
void ueberzug_init(){
ueberzug = popen("ueberzug layer -s ", "w");
}