465 lines
15 KiB
C
465 lines
15 KiB
C
#include <stdbool.h>
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#include <stdlib.h> // necessary for free, malloc.
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#include <string.h>
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#include <webkit2/webkit2.h>
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#include "config.h"
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#include "plugins/libre_redirect/libre_redirect.h"
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#include "plugins/readability/readability.h"
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#include "plugins/style/style.h"
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// #include "plugins/stand_in/stand_in.h"
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int LIBRE_REDIRECT_ENABLED = true;
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int READABILITY_ENABLED = true;
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int CUSTOM_STYLE_ENABLED = true;
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int CUSTOM_USER_AGENT = true;
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// to enable plugins,
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// 1. Enable them:
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// - uncomment their #include statement
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// - set their variable to true
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// - in build.sh, uncomment: REQS= #./plugins/*/*.c
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// 2. Remove stand_in code;
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// - Add an #include "plugins/stand_in/stand_in.h" line, and modify
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// stand_in.c so as to include stand-in functions for the excluded plugin
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// - In the make file, include the stand_in.c file and exclude the
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// relevant plugin
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#define CACHE \
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"base-cache-directory", CACHE_DIR, "base-data-directory", CACHE_DIR, \
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"disk-cache-directory", CACHE_DIR, "dom-cache-directory", CACHE_DIR, \
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"hsts-cache-directory", CACHE_DIR, "indexeddb-directory", CACHE_DIR, \
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"itp-directory", CACHE_DIR, "local-storage-directory", CACHE_DIR, \
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"offline-application-cache-directory", CACHE_DIR, \
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"service-worker-registrations-directory", CACHE_DIR
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enum { _SEARCH,
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_FIND,
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_HIDDEN };
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static int entry_mode;
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static GtkWindow* window;
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static GtkHeaderBar* bar;
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static GtkEntryBuffer* search_buf;
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static GtkEntry* search;
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WebKitWebView* webview_new()
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{
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char* style;
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WebKitSettings* settings;
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WebKitWebContext* web_context;
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WebKitCookieManager* cookiemanager;
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WebKitUserContentManager* contentmanager;
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settings = webkit_settings_new_with_settings(WEBKIT, NULL);
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if (CUSTOM_USER_AGENT) {
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webkit_settings_set_user_agent(
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settings,
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"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, "
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"like Gecko) Chrome/110.0.0.0 Safari/537.36");
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// See: <https://www.useragents.me/> for some common user agents
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}
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web_context = webkit_web_context_new_with_website_data_manager(
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webkit_website_data_manager_new(CACHE, NULL));
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contentmanager = webkit_user_content_manager_new();
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cookiemanager = webkit_web_context_get_cookie_manager(web_context);
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webkit_cookie_manager_set_persistent_storage(
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cookiemanager, CACHE_DIR "/cookies.sqlite",
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WEBKIT_COOKIE_PERSISTENT_STORAGE_SQLITE);
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webkit_cookie_manager_set_accept_policy(cookiemanager,
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WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS);
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webkit_web_context_set_process_model(
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web_context, WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
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if (g_file_get_contents("~/.config/rose/style.css", &style, NULL, NULL))
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webkit_user_content_manager_add_style_sheet(
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contentmanager, webkit_user_style_sheet_new(style, WEBKIT_USER_CONTENT_INJECT_ALL_FRAMES, WEBKIT_USER_STYLE_LEVEL_USER, NULL, NULL));
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return g_object_new(WEBKIT_TYPE_WEB_VIEW, "settings", settings, "web-context",
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web_context, "user-content-manager", contentmanager,
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NULL);
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}
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WebKitWebView* notebook_get_webview(GtkNotebook* notebook)
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{
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return WEBKIT_WEB_VIEW(gtk_notebook_get_nth_page(
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notebook, gtk_notebook_get_current_page(notebook)));
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}
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void load_uri(WebKitWebView* view, const char* uri)
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{
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if (g_str_has_prefix(uri, "http://") || g_str_has_prefix(uri, "https://") || g_str_has_prefix(uri, "file://") || g_str_has_prefix(uri, "about:")) {
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webkit_web_view_load_uri(view, uri);
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} else {
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// webkit_web_view_load_uri(view, uri);
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char tmp[strlen(uri) + strlen(SEARCH)];
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snprintf(tmp, sizeof(tmp), SEARCH, uri);
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webkit_web_view_load_uri(view, tmp);
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}
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}
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void redirect_if_annoying(WebKitWebView* view, const char* uri)
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{
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int l = LIBRE_N + strlen(uri) + 1;
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char uri_filtered[l];
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str_init(uri_filtered, l);
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int check = libre_redirect(uri, uri_filtered);
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if (check == 2) {
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webkit_web_view_load_uri(view, uri_filtered);
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}
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}
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void load_changed(WebKitWebView* self, WebKitLoadEvent load_event,
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GtkNotebook* notebook)
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{
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switch (load_event) {
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/* see <https://webkitgtk.org/reference/webkit2gtk/2.5.1/WebKitWebView.html>
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*/
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case WEBKIT_LOAD_STARTED:
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if (CUSTOM_STYLE_ENABLED) {
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char* style_js = malloc(STYLE_N + 1);
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read_style_js(style_js);
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webkit_web_view_run_javascript(notebook_get_webview(notebook), style_js,
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NULL, NULL, NULL);
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free(style_js);
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}
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if (LIBRE_REDIRECT_ENABLED) {
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redirect_if_annoying(self, webkit_web_view_get_uri(self));
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}
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break;
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case WEBKIT_LOAD_REDIRECTED:
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if (LIBRE_REDIRECT_ENABLED) {
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redirect_if_annoying(self, webkit_web_view_get_uri(self));
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}
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break;
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case WEBKIT_LOAD_COMMITTED:
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if (LIBRE_REDIRECT_ENABLED) {
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redirect_if_annoying(self, webkit_web_view_get_uri(self));
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}
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if (CUSTOM_STYLE_ENABLED) {
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char* style_js = malloc(STYLE_N + 1);
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read_style_js(style_js);
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webkit_web_view_run_javascript(notebook_get_webview(notebook), style_js,
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NULL, NULL, NULL);
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free(style_js);
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}
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break;
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case WEBKIT_LOAD_FINISHED: {
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/* Add gtk tab title */
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const char* webpage_title = webkit_web_view_get_title(self);
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const int max_length = 25;
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char tab_title[max_length + 1];
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if (webpage_title != NULL) {
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for (int i = 0; i < (max_length); i++) {
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tab_title[i] = webpage_title[i];
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if (webpage_title[i] == '\0') {
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break;
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}
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}
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tab_title[max_length] = '\0';
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}
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gtk_notebook_set_tab_label_text(notebook, GTK_WIDGET(self),
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webpage_title == NULL ? "—" : tab_title);
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// gtk_widget_hide(GTK_WIDGET(bar));
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}
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}
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}
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void notebook_append(GtkNotebook* notebook, const char* uri);
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/* notebook_append calls handle_create, but handle_create also calls
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* notebook_append. Therefore we need to declare notebook_append, so that
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* handle_create_new_tab knows its type.
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*/
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GtkWidget* handle_create_new_tab(WebKitWebView* self,
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WebKitNavigationAction* navigation_action,
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GtkNotebook* notebook)
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{
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WebKitURIRequest* uri_request = webkit_navigation_action_get_request(navigation_action);
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const char* uri = webkit_uri_request_get_uri(uri_request);
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printf("Creating new window: %s\n", uri);
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notebook_append(notebook, uri);
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gtk_notebook_set_show_tabs(notebook, true);
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return NULL;
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/* WebKitGTK documentation recommends returning the new webview.
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* I imagine that this might allow e.g., to go back in a new tab
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* or generally to keep track of history.
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* However, this would require either modifying notebook_append
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* or duplicating its contents, for unclear gain.
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*/
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}
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void notebook_append(GtkNotebook* notebook, const char* uri)
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{
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GdkScreen* screen = gtk_window_get_screen(GTK_WINDOW(window));
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GdkVisual* rgba_visual = gdk_screen_get_rgba_visual(screen);
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GdkRGBA rgba;
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gdk_rgba_parse(&rgba, BG_COLOR);
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WebKitWebView* view = webview_new();
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gtk_widget_set_visual(GTK_WIDGET(window), rgba_visual);
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g_signal_connect(view, "load_changed", G_CALLBACK(load_changed), notebook);
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g_signal_connect(view, "create", G_CALLBACK(handle_create_new_tab), notebook);
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int n = gtk_notebook_append_page(notebook, GTK_WIDGET(view), NULL);
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gtk_notebook_set_tab_reorderable(notebook, GTK_WIDGET(view), true);
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gtk_widget_show_all(GTK_WIDGET(window));
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gtk_widget_hide(GTK_WIDGET(bar));
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webkit_web_view_set_background_color(view, &rgba);
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load_uri(view, (uri) ? uri : HOME);
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gtk_notebook_set_current_page(notebook, n);
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gtk_notebook_set_tab_label_text(notebook, GTK_WIDGET(view), "-");
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webkit_web_view_set_zoom_level(view, ZOOM);
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}
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void show_bar(GtkNotebook* notebook)
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{
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if (entry_mode == _SEARCH) {
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const char* url = webkit_web_view_get_uri(notebook_get_webview(notebook));
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gtk_entry_set_placeholder_text(search, "Search");
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gtk_entry_buffer_set_text(search_buf, url, strlen(url));
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gtk_widget_show(GTK_WIDGET(bar));
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gtk_window_set_focus(window, GTK_WIDGET(search));
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} else if (entry_mode == _HIDDEN) {
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gtk_widget_hide(GTK_WIDGET(bar));
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} else {
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const char* search_text = webkit_find_controller_get_search_text(
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webkit_web_view_get_find_controller(notebook_get_webview(notebook)));
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if (search_text != NULL)
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gtk_entry_buffer_set_text(search_buf, search_text, strlen(search_text));
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gtk_entry_set_placeholder_text(search, "Find");
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gtk_widget_show(GTK_WIDGET(bar));
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gtk_window_set_focus(window, GTK_WIDGET(search));
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}
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}
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int handle_key(func id, GtkNotebook* notebook)
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{
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static double zoom = ZOOM;
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static bool is_fullscreen = 0;
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switch (id) {
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case goback:
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webkit_web_view_go_back(notebook_get_webview(notebook));
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break;
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case goforward:
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webkit_web_view_go_forward(notebook_get_webview(notebook));
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break;
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case refresh:
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webkit_web_view_reload(notebook_get_webview(notebook));
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break;
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case refresh_force:
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webkit_web_view_reload_bypass_cache(notebook_get_webview(notebook));
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break;
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case back_to_home:
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load_uri(notebook_get_webview(notebook), HOME);
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break;
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case zoomin:
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webkit_web_view_set_zoom_level(notebook_get_webview(notebook),
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(zoom += ZOOM_VAL));
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break;
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case zoomout:
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webkit_web_view_set_zoom_level(notebook_get_webview(notebook),
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(zoom -= ZOOM_VAL));
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break;
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case zoom_reset:
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webkit_web_view_set_zoom_level(notebook_get_webview(notebook),
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(zoom = ZOOM));
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break;
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case prev_tab:
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if (gtk_notebook_get_current_page(notebook) == 0) {
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gtk_notebook_set_current_page(notebook,
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gtk_notebook_get_n_pages(notebook) - 1);
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} else {
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gtk_notebook_prev_page(notebook);
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}
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break;
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case next_tab:
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if (gtk_notebook_get_current_page(notebook) == gtk_notebook_get_n_pages(notebook) - 1) {
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notebook_append(notebook, NULL);
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gtk_notebook_set_show_tabs(notebook, true);
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webkit_web_view_set_zoom_level(notebook_get_webview(notebook), zoom);
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} else {
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gtk_notebook_next_page(notebook);
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}
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break;
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case close_tab:
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gtk_notebook_remove_page(notebook, gtk_notebook_get_current_page(notebook));
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switch (gtk_notebook_get_n_pages(notebook)) {
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case 0:
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exit(0);
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break;
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case 1:
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gtk_notebook_set_show_tabs(notebook, false);
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break;
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}
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break;
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case toggle_fullscreen:
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if (is_fullscreen)
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gtk_window_unfullscreen(window);
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else
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gtk_window_fullscreen(window);
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is_fullscreen = !is_fullscreen;
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break;
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case show_searchbar:
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entry_mode = _SEARCH;
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show_bar(notebook);
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break;
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case show_finder:
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entry_mode = _FIND;
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show_bar(notebook);
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break;
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case finder_next:
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webkit_find_controller_search_next(
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webkit_web_view_get_find_controller(notebook_get_webview(notebook)));
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break;
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case finder_prev:
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webkit_find_controller_search_previous(
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webkit_web_view_get_find_controller(notebook_get_webview(notebook)));
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break;
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case new_tab:
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notebook_append(notebook, NULL);
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gtk_notebook_set_show_tabs(notebook, true);
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entry_mode = _SEARCH;
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show_bar(notebook);
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break;
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case hide_bar:
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entry_mode = _HIDDEN;
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show_bar(notebook);
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break;
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case prettify: {
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if (READABILITY_ENABLED) {
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char* readability_js = malloc(READABILITY_N + 1);
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read_readability_js(readability_js);
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webkit_web_view_run_javascript(notebook_get_webview(notebook),
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readability_js, NULL, NULL, NULL);
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free(readability_js);
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}
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break;
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}
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}
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return 1;
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}
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int keypress(void* self, GdkEvent* e, GtkNotebook* notebook)
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{
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(void)self;
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for (int i = 0; i < sizeof(keys) / sizeof(keys[0]); i++)
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if (e->key.keyval == keys[i].key && e->key.state == keys[i].mod)
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return handle_key(keys[i].id, notebook);
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return 0;
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}
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void search_activate(GtkEntry* self, GtkNotebook* notebook)
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{
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if (entry_mode == _SEARCH)
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load_uri(notebook_get_webview(notebook),
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gtk_entry_buffer_get_text(search_buf));
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else if (entry_mode == _FIND)
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webkit_find_controller_search(
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webkit_web_view_get_find_controller(notebook_get_webview(notebook)),
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gtk_entry_buffer_get_text(search_buf),
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WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE | WEBKIT_FIND_OPTIONS_WRAP_AROUND,
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G_MAXUINT);
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gtk_widget_hide(GTK_WIDGET(bar));
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}
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void window_init(GtkNotebook* notebook)
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{
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GtkCssProvider* css = gtk_css_provider_new();
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gtk_css_provider_load_from_path(css, "/usr/share/themes/rose/style.css",
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NULL);
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gtk_style_context_add_provider_for_screen(gdk_screen_get_default(),
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GTK_STYLE_PROVIDER(css), 800);
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gtk_entry_buffer_new("", 0);
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gtk_entry_set_alignment(search, 0.48);
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gtk_widget_set_size_request(GTK_WIDGET(search), SEARCH_BAR_SIZE, -1);
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gtk_header_bar_set_custom_title(bar, GTK_WIDGET(search));
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gtk_window_set_titlebar(window, GTK_WIDGET(bar));
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g_signal_connect(search, "activate", G_CALLBACK(search_activate), notebook);
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g_signal_connect(window, "key-press-event", G_CALLBACK(keypress), notebook);
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g_signal_connect(window, "destroy", G_CALLBACK(exit), notebook);
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}
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void notebook_init(GtkNotebook* notebook, const char* uri)
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{
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gtk_notebook_set_show_border(notebook, false);
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gtk_notebook_set_show_tabs(notebook, false);
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notebook_append(notebook, uri);
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}
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void setup(GtkNotebook* notebook, int argc, char** argv)
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{
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// Define GTK entities
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window = GTK_WINDOW(gtk_window_new(0));
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notebook = GTK_NOTEBOOK(gtk_notebook_new());
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bar = GTK_HEADER_BAR(gtk_header_bar_new());
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search_buf = GTK_ENTRY_BUFFER(gtk_entry_buffer_new("", 0));
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search = GTK_ENTRY(gtk_entry_new_with_buffer(search_buf));
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gtk_window_set_default_size(window, WIDTH, HEIGHT);
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window_init(notebook);
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// Initialize with first uri
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char* first_uri = argc > 1 ? argv[1] : NULL;
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notebook_init(notebook, first_uri);
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g_object_set(gtk_settings_get_default(), GTK, NULL);
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// More GTK stuff
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gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(notebook));
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gtk_widget_show_all(GTK_WIDGET(window));
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gtk_widget_hide(GTK_WIDGET(bar));
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// Deal with more uris, if this is necessary.
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if (argc > 2) {
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gtk_notebook_set_show_tabs(notebook, true);
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for (int i = 2; i < argc; i++) {
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notebook_append(notebook, argv[i]);
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}
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}
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}
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int main(int argc, char** argv)
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{
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GtkNotebook* notebook;
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gtk_init(NULL, NULL);
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setup(notebook, argc, argv);
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gtk_main();
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// this point is never reached, since gtk_main(); never exits.
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}
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