rosenrot/rose.c

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/*
* Copyright (c) 2022 mini-rose
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and any associated documentation
* files to modify, copy, merge, publish, distribute and/or
* sublicense copies of this sotware for their own use.
* This code does not come with any warranty.
*
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*/
#include <stdbool.h>
#include <stdlib.h> // necessary for free, malloc.
#include <string.h>
#include <webkit2/webkit2.h>
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#include "config.h"
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#include "plugins/libre_redirect/libre_redirect.h"
#include "plugins/readability/readability.h"
#include "plugins/style/style.h"
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// #include "plugins/stand_in/stand_in.h"
int LIBRE_REDIRECT_ENABLED = true;
int READABILITY_ENABLED = true;
int CUSTOM_STYLE_ENABLED = true;
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int CUSTOM_USER_AGENT = true;
// to enable plugins,
// 1. Enable them:
// - uncomment their #include statement
// - set their variable to true
// - in build.sh, uncomment: REQS= #./plugins/*/*.c
// 2. Remove stand_in code;
// - Comment out #include "plugins/stand_in/stand_in.h" line, or edit it
// together with stand_in.c so as to not include the plugin functions.
// - In build.sh, comment out REQS=./plugins/stand_in/stand_in.c
#define CACHE \
"base-cache-directory", CACHE_DIR, "base-data-directory", CACHE_DIR, \
"disk-cache-directory", CACHE_DIR, "dom-cache-directory", CACHE_DIR, \
"hsts-cache-directory", CACHE_DIR, "indexeddb-directory", CACHE_DIR, \
"itp-directory", CACHE_DIR, "local-storage-directory", CACHE_DIR, \
"offline-application-cache-directory", CACHE_DIR, \
"service-worker-registrations-directory", CACHE_DIR
enum { _SEARCH,
_FIND,
_HIDDEN };
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static int entry_mode;
static GtkWindow* window;
static GtkHeaderBar* bar;
static GtkEntryBuffer* search_buf;
static GtkEntry* search;
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WebKitWebView* webview_new()
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{
char* style;
WebKitSettings* settings;
WebKitWebContext* web_context;
WebKitCookieManager* cookiemanager;
WebKitUserContentManager* contentmanager;
settings = webkit_settings_new_with_settings(WEBKIT, NULL);
if (CUSTOM_USER_AGENT) {
webkit_settings_set_user_agent(
settings,
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, "
"like Gecko) Chrome/110.0.0.0 Safari/537.36");
// See: <https://www.useragents.me/> for some common user agents
}
web_context = webkit_web_context_new_with_website_data_manager(
webkit_website_data_manager_new(CACHE, NULL));
contentmanager = webkit_user_content_manager_new();
cookiemanager = webkit_web_context_get_cookie_manager(web_context);
webkit_cookie_manager_set_persistent_storage(
cookiemanager, CACHE_DIR "/cookies.sqlite",
WEBKIT_COOKIE_PERSISTENT_STORAGE_SQLITE);
webkit_cookie_manager_set_accept_policy(cookiemanager,
WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS);
webkit_web_context_set_process_model(
web_context, WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
if (g_file_get_contents("~/.config/rose/style.css", &style, NULL, NULL))
webkit_user_content_manager_add_style_sheet(
contentmanager, webkit_user_style_sheet_new(style, WEBKIT_USER_CONTENT_INJECT_ALL_FRAMES, WEBKIT_USER_STYLE_LEVEL_USER, NULL, NULL));
return g_object_new(WEBKIT_TYPE_WEB_VIEW, "settings", settings, "web-context",
web_context, "user-content-manager", contentmanager,
NULL);
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}
WebKitWebView* notebook_get_webview(GtkNotebook* notebook)
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{
return WEBKIT_WEB_VIEW(gtk_notebook_get_nth_page(
notebook, gtk_notebook_get_current_page(notebook)));
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}
void load_uri(WebKitWebView* view, const char* uri)
{
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:")) {
webkit_web_view_load_uri(view, uri);
} else {
// webkit_web_view_load_uri(view, uri);
char tmp[strlen(uri) + strlen(SEARCH)];
snprintf(tmp, sizeof(tmp), SEARCH, uri);
webkit_web_view_load_uri(view, tmp);
}
}
void redirect_if_annoying(WebKitWebView* view, const char* uri)
{
int l = LIBRE_N + strlen(uri) + 1;
char uri_filtered[l];
str_init(uri_filtered, l);
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int check = libre_redirect(uri, uri_filtered);
if (check == 2) {
webkit_web_view_load_uri(view, uri_filtered);
}
}
void load_changed(WebKitWebView* self, WebKitLoadEvent load_event,
GtkNotebook* notebook)
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{
switch (load_event) {
/* see <https://webkitgtk.org/reference/webkit2gtk/2.5.1/WebKitWebView.html>
*/
case WEBKIT_LOAD_STARTED:
if (CUSTOM_STYLE_ENABLED) {
char* style_js = malloc(STYLE_N + 1);
read_style_js(style_js);
webkit_web_view_run_javascript(notebook_get_webview(notebook), style_js,
NULL, NULL, NULL);
free(style_js);
}
if (LIBRE_REDIRECT_ENABLED) {
redirect_if_annoying(self, webkit_web_view_get_uri(self));
}
break;
case WEBKIT_LOAD_REDIRECTED:
if (LIBRE_REDIRECT_ENABLED) {
redirect_if_annoying(self, webkit_web_view_get_uri(self));
}
break;
case WEBKIT_LOAD_COMMITTED:
if (LIBRE_REDIRECT_ENABLED) {
redirect_if_annoying(self, webkit_web_view_get_uri(self));
}
if (CUSTOM_STYLE_ENABLED) {
char* style_js = malloc(STYLE_N + 1);
read_style_js(style_js);
webkit_web_view_run_javascript(notebook_get_webview(notebook), style_js,
NULL, NULL, NULL);
free(style_js);
}
break;
case WEBKIT_LOAD_FINISHED: {
/* Add gtk tab title */
const char* webpage_title = webkit_web_view_get_title(self);
const int max_length = 25;
char tab_title[max_length + 1];
if (webpage_title != NULL) {
for (int i = 0; i < (max_length); i++) {
tab_title[i] = webpage_title[i];
if (webpage_title[i] == '\0') {
break;
}
}
tab_title[max_length] = '\0';
}
gtk_notebook_set_tab_label_text(notebook, GTK_WIDGET(self),
webpage_title == NULL ? "" : tab_title);
// gtk_widget_hide(GTK_WIDGET(bar));
}
}
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}
void notebook_append(GtkNotebook* notebook, const char* uri);
/* notebook_append calls handle_create, but handle_create also calls
* notebook_append. Therefore we need to declare notebook_append, so that
* handle_create_new_tab knows its type.
*/
GtkWidget* handle_create_new_tab(WebKitWebView* self,
WebKitNavigationAction* navigation_action,
GtkNotebook* notebook)
{
WebKitURIRequest* uri_request = webkit_navigation_action_get_request(navigation_action);
const char* uri = webkit_uri_request_get_uri(uri_request);
printf("Creating new window: %s\n", uri);
notebook_append(notebook, uri);
gtk_notebook_set_show_tabs(notebook, true);
return NULL;
/* WebKitGTK documentation recommends returning the new webview.
* I imagine that this might allow e.g., to go back in a new tab
* or generally to keep track of history.
* However, this would require either modifying notebook_append
* or duplicating its contents, for unclear gain.
*/
}
void notebook_append(GtkNotebook* notebook, const char* uri)
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{
GdkScreen* screen = gtk_window_get_screen(GTK_WINDOW(window));
GdkVisual* rgba_visual = gdk_screen_get_rgba_visual(screen);
GdkRGBA rgba;
gdk_rgba_parse(&rgba, BG_COLOR);
WebKitWebView* view = webview_new();
gtk_widget_set_visual(GTK_WIDGET(window), rgba_visual);
g_signal_connect(view, "load_changed", G_CALLBACK(load_changed), notebook);
g_signal_connect(view, "create", G_CALLBACK(handle_create_new_tab), notebook);
int n = gtk_notebook_append_page(notebook, GTK_WIDGET(view), NULL);
gtk_notebook_set_tab_reorderable(notebook, GTK_WIDGET(view), true);
gtk_widget_show_all(GTK_WIDGET(window));
gtk_widget_hide(GTK_WIDGET(bar));
webkit_web_view_set_background_color(view, &rgba);
load_uri(view, (uri) ? uri : HOME);
gtk_notebook_set_current_page(notebook, n);
gtk_notebook_set_tab_label_text(notebook, GTK_WIDGET(view), "-");
webkit_web_view_set_zoom_level(view, ZOOM);
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}
void show_bar(GtkNotebook* notebook)
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{
if (entry_mode == _SEARCH) {
const char* url = webkit_web_view_get_uri(notebook_get_webview(notebook));
gtk_entry_set_placeholder_text(search, "Search");
gtk_entry_buffer_set_text(search_buf, url, strlen(url));
gtk_widget_show(GTK_WIDGET(bar));
gtk_window_set_focus(window, GTK_WIDGET(search));
} else if (entry_mode == _HIDDEN) {
gtk_widget_hide(GTK_WIDGET(bar));
} else {
const char* search_text = webkit_find_controller_get_search_text(
webkit_web_view_get_find_controller(notebook_get_webview(notebook)));
if (search_text != NULL)
gtk_entry_buffer_set_text(search_buf, search_text, strlen(search_text));
gtk_entry_set_placeholder_text(search, "Find");
gtk_widget_show(GTK_WIDGET(bar));
gtk_window_set_focus(window, GTK_WIDGET(search));
}
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}
int handle_key(func id, GtkNotebook* notebook)
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{
static double zoom = ZOOM;
static bool is_fullscreen = 0;
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switch (id) {
case goback:
webkit_web_view_go_back(notebook_get_webview(notebook));
break;
case goforward:
webkit_web_view_go_forward(notebook_get_webview(notebook));
break;
case refresh:
webkit_web_view_reload(notebook_get_webview(notebook));
break;
case refresh_force:
webkit_web_view_reload_bypass_cache(notebook_get_webview(notebook));
break;
case back_to_home:
load_uri(notebook_get_webview(notebook), HOME);
break;
case zoomin:
webkit_web_view_set_zoom_level(notebook_get_webview(notebook),
(zoom += ZOOM_VAL));
break;
case zoomout:
webkit_web_view_set_zoom_level(notebook_get_webview(notebook),
(zoom -= ZOOM_VAL));
break;
case zoom_reset:
webkit_web_view_set_zoom_level(notebook_get_webview(notebook),
(zoom = ZOOM));
break;
case prev_tab:
if (gtk_notebook_get_current_page(notebook) == 0) {
gtk_notebook_set_current_page(notebook,
gtk_notebook_get_n_pages(notebook) - 1);
} else {
gtk_notebook_prev_page(notebook);
}
break;
case next_tab:
if (gtk_notebook_get_current_page(notebook) == gtk_notebook_get_n_pages(notebook) - 1) {
notebook_append(notebook, NULL);
gtk_notebook_set_show_tabs(notebook, true);
webkit_web_view_set_zoom_level(notebook_get_webview(notebook), zoom);
} else {
gtk_notebook_next_page(notebook);
}
break;
case close_tab:
gtk_notebook_remove_page(notebook, gtk_notebook_get_current_page(notebook));
switch (gtk_notebook_get_n_pages(notebook)) {
case 0:
exit(0);
break;
case 1:
gtk_notebook_set_show_tabs(notebook, false);
break;
}
break;
case toggle_fullscreen:
if (is_fullscreen)
gtk_window_unfullscreen(window);
else
gtk_window_fullscreen(window);
is_fullscreen = !is_fullscreen;
break;
case show_searchbar:
entry_mode = _SEARCH;
show_bar(notebook);
break;
case show_finder:
entry_mode = _FIND;
show_bar(notebook);
break;
case finder_next:
webkit_find_controller_search_next(
webkit_web_view_get_find_controller(notebook_get_webview(notebook)));
break;
case finder_prev:
webkit_find_controller_search_previous(
webkit_web_view_get_find_controller(notebook_get_webview(notebook)));
break;
case new_tab:
notebook_append(notebook, NULL);
gtk_notebook_set_show_tabs(notebook, true);
entry_mode = _SEARCH;
show_bar(notebook);
break;
case hide_bar:
entry_mode = _HIDDEN;
show_bar(notebook);
break;
case prettify: {
if (READABILITY_ENABLED) {
char* readability_js = malloc(READABILITY_N + 1);
read_readability_js(readability_js);
webkit_web_view_run_javascript(notebook_get_webview(notebook),
readability_js, NULL, NULL, NULL);
free(readability_js);
}
break;
}
}
return 1;
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}
int keypress(void* self, GdkEvent* e, GtkNotebook* notebook)
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{
(void)self;
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for (int i = 0; i < sizeof(keys) / sizeof(keys[0]); i++)
if (e->key.keyval == keys[i].key && e->key.state == keys[i].mod)
return handle_key(keys[i].id, notebook);
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return 0;
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}
void search_activate(GtkEntry* self, GtkNotebook* notebook)
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{
if (entry_mode == _SEARCH)
load_uri(notebook_get_webview(notebook),
gtk_entry_buffer_get_text(search_buf));
else if (entry_mode == _FIND)
webkit_find_controller_search(
webkit_web_view_get_find_controller(notebook_get_webview(notebook)),
gtk_entry_buffer_get_text(search_buf),
WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE | WEBKIT_FIND_OPTIONS_WRAP_AROUND,
G_MAXUINT);
gtk_widget_hide(GTK_WIDGET(bar));
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}
void window_init(GtkNotebook* notebook)
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{
GtkCssProvider* css = gtk_css_provider_new();
gtk_css_provider_load_from_path(css, "/usr/share/themes/rose/style.css",
NULL);
gtk_style_context_add_provider_for_screen(gdk_screen_get_default(),
GTK_STYLE_PROVIDER(css), 800);
gtk_entry_buffer_new("", 0);
gtk_entry_set_alignment(search, 0.48);
gtk_widget_set_size_request(GTK_WIDGET(search), 1200, -1);
gtk_header_bar_set_custom_title(bar, GTK_WIDGET(search));
gtk_window_set_titlebar(window, GTK_WIDGET(bar));
g_signal_connect(search, "activate", G_CALLBACK(search_activate), notebook);
g_signal_connect(window, "key-press-event", G_CALLBACK(keypress), notebook);
g_signal_connect(window, "destroy", G_CALLBACK(exit), notebook);
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}
void notebook_init(GtkNotebook* notebook, const char* uri)
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{
gtk_notebook_set_show_border(notebook, false);
gtk_notebook_set_show_tabs(notebook, false);
notebook_append(notebook, uri);
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}
void setup(GtkNotebook* notebook, int argc, char** argv)
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{
// Define GTK entities
window = GTK_WINDOW(gtk_window_new(0));
notebook = GTK_NOTEBOOK(gtk_notebook_new());
bar = GTK_HEADER_BAR(gtk_header_bar_new());
search_buf = GTK_ENTRY_BUFFER(gtk_entry_buffer_new("", 0));
search = GTK_ENTRY(gtk_entry_new_with_buffer(search_buf));
gtk_window_set_default_size(window, WIDTH, HEIGHT);
window_init(notebook);
// Initialize with first uri
char* first_uri = argc > 1 ? argv[1] : NULL;
notebook_init(notebook, first_uri);
g_object_set(gtk_settings_get_default(), GTK, NULL);
// More GTK stuff
gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(notebook));
gtk_widget_show_all(GTK_WIDGET(window));
gtk_widget_hide(GTK_WIDGET(bar));
// Deal with more uris, if this is necessary.
if (argc > 2) {
gtk_notebook_set_show_tabs(notebook, true);
for (int i = 2; i < argc; i++) {
notebook_append(notebook, argv[i]);
}
}
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}
int main(int argc, char** argv)
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{
GtkNotebook* notebook;
gtk_init(NULL, NULL);
setup(notebook, argc, argv);
gtk_main();
// this point is never reached, since gtk_main(); never exits.
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}