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#include "web_dom.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <emscripten/emscripten.h>
struct elem *elem_init(char *ns, char *name, int size_attrs)
{
struct elem *e = malloc(sizeof(*e));
e->ns = ns ? strdup(ns) : NULL;
e->name = strdup(name);
e->n_attrs = 0;
e->size_attrs = size_attrs;
e->attr_names = malloc(size_attrs * sizeof(*(e->attr_names)));
e->attr_vals = malloc(size_attrs * sizeof(*(e->attr_vals)));
e->content = NULL;
return e;
}
void elem_free(struct elem *e)
{
for(int i = 0; i < e->n_attrs; ++i) {
free(e->attr_names[i]);
free(e->attr_vals[i]);
}
free(e->content);
free(e->attr_names);
free(e->attr_vals);
free(e->name);
free(e);
}
void elem_add_attr(struct elem *e, char *name, char *val)
{
if (e->n_attrs == e->size_attrs) {
e->size_attrs *= 2;
e->attr_names = realloc(e->attr_names,
e->size_attrs * sizeof(*(e->attr_names)));
e->attr_vals = realloc(e->attr_vals,
e->size_attrs * sizeof(*(e->attr_vals)));
}
e->attr_names[e->n_attrs] = strdup(name);
e->attr_vals[e->n_attrs++] = strdup(val);
}
void elem_add_attr_double(struct elem *e, char *name, double val)
{
char str[512];
sprintf(str, "%f", val);
elem_add_attr(e, name, str);
}
void append_elemv(char *sel, int elemc, struct elem **elemv)
{
EM_ASM({elemAppendElemv($0, $1, $2, $3, $4, $5, $6, $7, $8)},
sel, elemc, elemv,
offsetof(struct elem, ns),
offsetof(struct elem, name),
offsetof(struct elem, content),
offsetof(struct elem, n_attrs),
offsetof(struct elem, attr_names),
offsetof(struct elem, attr_vals));
}
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