diff options
Diffstat (limited to 'src/rose.c')
| -rw-r--r-- | src/rose.c | 473 |
1 files changed, 473 insertions, 0 deletions
diff --git a/src/rose.c b/src/rose.c new file mode 100644 index 0000000..d034455 --- /dev/null +++ b/src/rose.c @@ -0,0 +1,473 @@ +/* + * 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. + * + */ +#include <stdbool.h> +#include <stdlib.h> // necessary for free, malloc. +#include <string.h> +#include <webkit2/webkit2.h> + +#include "config.h" + +#include "plugins/libre_redirect/libre_redirect.h" +#include "plugins/readability/readability.h" +#include "plugins/style/style.h" + +// #include "plugins/stand_in/stand_in.h" + +int LIBRE_REDIRECT_ENABLED = true; +int READABILITY_ENABLED = true; +int CUSTOM_STYLE_ENABLED = true; +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 }; + +static int entry_mode; +static GtkWindow* window; +static GtkHeaderBar* bar; +static GtkEntryBuffer* search_buf; +static GtkEntry* search; + +WebKitWebView* webview_new() +{ + 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); +} + +WebKitWebView* notebook_get_webview(GtkNotebook* notebook) +{ + return WEBKIT_WEB_VIEW(gtk_notebook_get_nth_page( + notebook, gtk_notebook_get_current_page(notebook))); +} + +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); + + 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) +{ + 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)); + } + } +} + +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) +{ + 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); +} + +void show_bar(GtkNotebook* notebook) +{ + 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)); + } +} + +int handle_key(func id, GtkNotebook* notebook) +{ + static double zoom = ZOOM; + static bool is_fullscreen = 0; + + 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; +} + +int keypress(void* self, GdkEvent* e, GtkNotebook* notebook) +{ + (void)self; + + 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); + + return 0; +} + +void search_activate(GtkEntry* self, GtkNotebook* notebook) +{ + 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)); +} + +void window_init(GtkNotebook* notebook) +{ + 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); +} + +void notebook_init(GtkNotebook* notebook, const char* uri) +{ + gtk_notebook_set_show_border(notebook, false); + gtk_notebook_set_show_tabs(notebook, false); + notebook_append(notebook, uri); +} + +void setup(GtkNotebook* notebook, int argc, char** argv) +{ + // 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]); + } + } +} + +int main(int argc, char** argv) +{ + GtkNotebook* notebook; + gtk_init(NULL, NULL); + setup(notebook, argc, argv); + gtk_main(); + // this point is never reached, since gtk_main(); never exits. +} |