twebext-surf.c - surf - [fork] customized build of surf, the suckless webkit browser (HTM) git clone git://src.adamsgaard.dk/surf (DIR) Log (DIR) Files (DIR) Refs (DIR) README (DIR) LICENSE --- twebext-surf.c (2472B) --- 1 #include <sys/socket.h> 2 #include <sys/stat.h> 3 #include <fcntl.h> 4 #include <inttypes.h> 5 #include <limits.h> 6 #include <stdio.h> 7 #include <stdlib.h> 8 9 #include <gio/gio.h> 10 #include <webkit2/webkit-web-extension.h> 11 #include <webkitdom/webkitdom.h> 12 #include <webkitdom/WebKitDOMDOMWindowUnstable.h> 13 14 #include "common.h" 15 16 #define LENGTH(x) (sizeof(x) / sizeof(x[0])) 17 18 static WebKitWebExtension *webext; 19 static int sock; 20 21 static void 22 msgsurf(guint64 pageid, const char *s) 23 { 24 static char msg[MSGBUFSZ]; 25 size_t sln = strlen(s); 26 int ret; 27 28 if ((ret = snprintf(msg, sizeof(msg), "%c%s", pageid, s)) 29 >= sizeof(msg)) { 30 fprintf(stderr, "webext: msg: message too long: %d\n", ret); 31 return; 32 } 33 34 if (send(sock, msg, ret, 0) < 0) 35 fprintf(stderr, "webext: error sending: %s\n", msg+1); 36 } 37 38 static gboolean 39 readsock(GIOChannel *s, GIOCondition c, gpointer unused) 40 { 41 static char js[48], msg[MSGBUFSZ]; 42 WebKitWebPage *page; 43 JSCContext *jsc; 44 GError *gerr = NULL; 45 gsize msgsz; 46 47 if (g_io_channel_read_chars(s, msg, sizeof(msg), &msgsz, &gerr) != 48 G_IO_STATUS_NORMAL) { 49 if (gerr) { 50 fprintf(stderr, "webext: error reading socket: %s\n", 51 gerr->message); 52 g_error_free(gerr); 53 } 54 return TRUE; 55 } 56 57 if (msgsz < 2) { 58 fprintf(stderr, "webext: readsock: message too short: %d\n", 59 msgsz); 60 return TRUE; 61 } 62 63 if (!(page = webkit_web_extension_get_page(webext, msg[0]))) 64 return TRUE; 65 66 jsc = webkit_frame_get_js_context(webkit_web_page_get_main_frame(page)); 67 68 switch (msg[1]) { 69 case 'h': 70 if (msgsz != 3) 71 return TRUE; 72 snprintf(js, sizeof(js), 73 "window.scrollBy(window.innerWidth/100*%d,0);", 74 msg[2]); 75 jsc_context_evaluate(jsc, js, -1); 76 break; 77 case 'v': 78 if (msgsz != 3) 79 return TRUE; 80 snprintf(js, sizeof(js), 81 "window.scrollBy(0,window.innerHeight/100*%d);", 82 msg[2]); 83 jsc_context_evaluate(jsc, js, -1); 84 break; 85 } 86 87 return TRUE; 88 } 89 90 G_MODULE_EXPORT void 91 webkit_web_extension_initialize_with_user_data(WebKitWebExtension *e, 92 const GVariant *gv) 93 { 94 GIOChannel *gchansock; 95 96 webext = e; 97 98 g_variant_get(gv, "i", &sock); 99 100 gchansock = g_io_channel_unix_new(sock); 101 g_io_channel_set_encoding(gchansock, NULL, NULL); 102 g_io_channel_set_flags(gchansock, g_io_channel_get_flags(gchansock) 103 | G_IO_FLAG_NONBLOCK, NULL); 104 g_io_channel_set_close_on_unref(gchansock, TRUE); 105 g_io_add_watch(gchansock, G_IO_IN, readsock, NULL); 106 }