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#include <sys/socket.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <inttypes.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <gio/gio.h>
#include <webkit2/webkit-web-extension.h>
#include <webkitdom/webkitdom.h>
#include <webkitdom/WebKitDOMDOMWindowUnstable.h>
#include "common.h"
#define LENGTH(x) (sizeof(x) / sizeof(x[0]))
static WebKitWebExtension *webext;
static int sock;
static void
msgsurf(guint64 pageid, const char *s)
{
static char msg[MSGBUFSZ];
size_t sln = strlen(s);
int ret;
if ((ret = snprintf(msg, sizeof(msg), "%c%s", pageid, s))
>= sizeof(msg)) {
fprintf(stderr, "webext: msg: message too long: %d\n", ret);
return;
}
if (send(sock, msg, ret, 0) < 0)
fprintf(stderr, "webext: error sending: %s\n", msg+1);
}
static gboolean
readsock(GIOChannel *s, GIOCondition c, gpointer unused)
{
static char js[48], msg[MSGBUFSZ];
WebKitWebPage *page;
JSCContext *jsc;
GError *gerr = NULL;
gsize msgsz;
if (g_io_channel_read_chars(s, msg, sizeof(msg), &msgsz, &gerr) !=
G_IO_STATUS_NORMAL) {
if (gerr) {
fprintf(stderr, "webext: error reading socket: %s\n",
gerr->message);
g_error_free(gerr);
}
return TRUE;
}
if (msgsz < 2) {
fprintf(stderr, "webext: readsock: message too short: %d\n",
msgsz);
return TRUE;
}
if (!(page = webkit_web_extension_get_page(webext, msg[0])))
return TRUE;
jsc = webkit_frame_get_js_context(webkit_web_page_get_main_frame(page));
switch (msg[1]) {
case 'h':
if (msgsz != 3)
return TRUE;
snprintf(js, sizeof(js),
"window.scrollBy(window.innerWidth/100*%d,0);",
msg[2]);
jsc_context_evaluate(jsc, js, -1);
break;
case 'v':
if (msgsz != 3)
return TRUE;
snprintf(js, sizeof(js),
"window.scrollBy(0,window.innerHeight/100*%d);",
msg[2]);
jsc_context_evaluate(jsc, js, -1);
break;
}
return TRUE;
}
G_MODULE_EXPORT void
webkit_web_extension_initialize_with_user_data(WebKitWebExtension *e,
const GVariant *gv)
{
GIOChannel *gchansock;
webext = e;
g_variant_get(gv, "i", &sock);
gchansock = g_io_channel_unix_new(sock);
g_io_channel_set_encoding(gchansock, NULL, NULL);
g_io_channel_set_flags(gchansock, g_io_channel_get_flags(gchansock)
| G_IO_FLAG_NONBLOCK, NULL);
g_io_channel_set_close_on_unref(gchansock, TRUE);
g_io_add_watch(gchansock, G_IO_IN, readsock, NULL);
}
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