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Diffstat (limited to 'surf-webext-dom.c')
| -rw-r--r-- | surf-webext-dom.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/surf-webext-dom.c b/surf-webext-dom.c deleted file mode 100644 index 9d25704..0000000 --- a/surf-webext-dom.c +++ /dev/null @@ -1,188 +0,0 @@ -// -// !!! THIS IS A BUGGY CONCEPT/PROTOTYPE. USE AT YOUR OWN RISK !!! -// -// The following simple Webkit2GTK+ extension was hacked together -// in the sleepless night between 09th and 10th March 2018 (and later -// refined) by: -// -// Michal Idziorek <m.i@gmx.at>. -// -// It regjsters a document_loaded_callback, where the DOM is manipulated, -// i.e: a <span> with a number added to every link encountered. -// -// The urls are extracted from the DOM and shared with the browsers -// process over a system V memory segment. -// -// As an example, this can be used to enable keyboardless navigation -// in surf by simply typing in the number of the link. -// -// TODO: Support multiple clients! See source for more TODOS! -// THE biggest limitation by now is the lazily hardcoded: -// key_t my_ftok = ftok("~/surf-webext-dom-shared-mem",'a'); -// -// Last Update: 14th March 2018 -// -// Last Tested: with surf commit 81f0452bc6c2a110239fa303ad1e72f11c33dc94 -// from htps://git.suckless.org/surf -// - -#include <webkit2/webkit-web-extension.h> - -#include <sys/ipc.h> -#include <sys/shm.h> -#include <errno.h> -#include <string.h> -#include <pthread.h> - -bool str_prefix(const char *str, const char *pre); - -static int call=0; -static char *shared_buf; -WebKitDOMHTMLDocument *my_doc; - -void -document_loaded_callback (WebKitWebPage *web_page, - GPtrArray *elements, - GVariant *user_data) -{ - - my_doc = webkit_web_page_get_dom_document(web_page); -// if(!WEBKIT_DOM_IS_HTML_DOCUMENT(my_doc))return; - -// GThread *t1 = g_thread_new ("show hints", show_hints, doc); - // g_thread_join(t1); -} - -GThreadFunc -show_hints(WebKitDOMHTMLDocument *doc) -{ - - // TODO: g_free where appropriate !! - // TODO: allow focus on input boxes/forms - // TODO: Put this somehwere else? (but I dislike #defines) - // share this info with surf itself! maybe surf can supply this along - // the ftok path via the user_data GVariant. - int MAX_LINKS=1024; - int MAX_LINK_LENGTH=1024; - int DEBUG=9; - - // get url - char *url = webkit_dom_document_get_url (doc); - if(DEBUG>1) g_print("document_loaded (callback): %s\n", url); - - // tokenize url - char *url_proto=strtok(url,"/"); - char *url_host=strtok(NULL,"/"); - if(DEBUG>2) g_print("proto: %s\n", url_proto); - if(DEBUG>2) g_print("host: %s\n", url_host); - - // get html body - WebKitDOMHTMLElement *body = webkit_dom_document_get_body(doc); - - // get links (alt) - WebKitDOMNodeList *links = webkit_dom_document_query_selector_all(doc,"a",NULL); - gulong links_count = webkit_dom_node_list_get_length (links); - g_print("extracted %i links\n",links_count); - - // get links - /* - WebKitDOMHTMLCollection *links = webkit_dom_document_get_links(doc); - gulong links_count = webkit_dom_html_collection_get_length (links); - if(DEBUG>1) g_print("extracted %i links\n",links_count); - */ - - // iterate over links - for(gulong i=0;i<links_count;i++) - { - char buf[MAX_LINK_LENGTH]; // TODO: dynamic! - - WebKitDOMHTMLElement * node = webkit_dom_node_list_item (links,i); - - // add hint for keyboard navigation - - //g_print("node address: %p\n", node); - - char *txt = webkit_dom_html_element_get_inner_html (node); - - // TODO: style via stylesheet - snprintf(buf,MAX_LINK_LENGTH, - "<span style='padding-right:5px;border-bottom:1px solid black;'>\ - <span style='font-size:13px;font-weight:bold;font-face:Arial;\ - border:1px solid black;display:inline;color:white;\ - background-color:#77b;padding:0 5px;margin:0;\ - margin-right:5px;'>%i</span>%s</span>", i,txt); - if(DEBUG>10) g_print("extracted link : %s\n",txt); - - webkit_dom_html_element_set_inner_html (node,buf,NULL); - - //sleep(1); - // alternatively add hints at the end of the body - // webkit_dom_element_insert_adjacent_html (body,"beforeend",buf,NULL); - - // TODO: this does not work for some sad reason. - // sadly, likely due to my misunderstanding. - // node seems not to be a LinkElement at all :( - //txt = webkit_dom_html_link_element_get_href (node); - // so we have to use this: - txt = webkit_dom_element_get_attribute (node,"href"); - if(txt==NULL)continue; - if(str_prefix(txt,"//")) snprintf(buf,MAX_LINK_LENGTH,"%s%s",url_proto,txt); - else if(str_prefix(txt,"/")) snprintf(buf,MAX_LINK_LENGTH,"%s//%s%s",url_proto,url_host,txt); - else snprintf(buf,MAX_LINK_LENGTH,"%s",txt); - - if(i<MAX_LINKS) snprintf(&(shared_buf[MAX_LINK_LENGTH*i]),MAX_LINK_LENGTH,"%s\0",buf); - if(DEBUG>10) g_print("extracted link : %s\n",buf); - } -} - -static gboolean mycallback(GIOChannel *ch, GIOCondition c, gpointer p) -{ - g_print("callback called\n"); - gchar *line; - g_io_channel_read_line(ch, &line, NULL, NULL, NULL); - g_print("read: %s\n",line); - g_free(line); - show_hints(my_doc); - return true; - -} -static void -page_created_callback (WebKitWebExtension *extension, - WebKitWebPage *web_page, - GVariant *user_data) -{ - g_signal_connect (web_page, "document-loaded", - G_CALLBACK (document_loaded_callback), - user_data); - - GMainContext *ctx = g_main_context_default(); - GIOChannel *io = g_io_channel_new_file("/home/miguel/temp/mypipe", "r+", NULL); - GSource *watch = g_io_create_watch(io, G_IO_IN); - g_source_attach(watch,ctx); - g_source_set_callback(watch,(GSourceFunc)mycallback,NULL,NULL); - -} - -G_MODULE_EXPORT void -webkit_web_extension_initialize_with_user_data (WebKitWebExtension *extension, - GVariant *user_data) -{ - g_print("Initalizing Miguel's Surfin' Quick Links WebKit2GTK+ Extension\n"); - g_print("Extension PID: %d\n",getpid()); - gchar *str=g_variant_get_string(user_data,NULL); - g_print("UI Process Data: %s\n",str); -// g_free(str); - g_signal_connect (extension, "page-created", - G_CALLBACK (page_created_callback), - user_data ); - -} - -//https://stackoverflow.com/questions/4770985/how-to-check-if-a-string-starts-with-another-string-in-c -bool str_prefix(const char *str, const char *pre) -{ - size_t lenpre = strlen(pre), - lenstr = strlen(str); - return lenstr < lenpre ? false : strncmp(pre, str, lenpre) == 0; -} - |