path: root/rosenrot.nocomments.c

#include <gdk/gdk.h>
#include <stdlib.h>
#include <string.h>
#include <webkit2/webkit2.h>

#define WIDTH 1920 
#define HEIGHT 1080
#define BAR_SIZE 1000
#define SEARCH "https://lite.duckduckgo.com/html/?q=%s"
#define HOME "https://lite.duckduckgo.com/html"
#define ZOOM 1 /* Starting zoom level.*/
#define ZOOM_VAL .1 /* Zooming value in zoomin/zoomout functions */
#define MAX_NUM_TABS 8
#define WEBKIT_DEFAULT_SETTINGS                                                 \
    "enable-back-forward-navigation-gestures", 1, "enable-developer-extras", 1, \
        "enable-smooth-scrolling", 0,                                           \
        "default-charset", "utf-8"
#define DATA_DIR "/home/nuno/.cache/rosenrot"
#define DATA_MANAGER_OPTS "base-cache-directory", DATA_DIR, "base-data-directory", DATA_DIR
#define GTK_SETTINGS_CONFIG_H "gtk-application-prefer-dark-theme", 0, "gtk-enable-animations", 0
#define KEY(x) GDK_KEY_##x
typedef enum {
    goback,
    goforward,
    refresh,
    refresh_force,
    back_to_home,
    toggle_fullscreen,
    zoomin,
    zoomout,
    zoom_reset,
    new_tab,
    next_tab,
    prev_tab,
    close_tab,
    show_searchbar,
    show_finder,
    finder_next,
    finder_prev,
    prettify,
    hide_bar
} func;

#define SFT 1 << 0
#define CTRL 1 << 2
#define ALT 1 << 3

static struct {
    unsigned mod;
    unsigned key;
    func id;
} shortcut[] = {
    { CTRL, KEY(h), goback },
    { CTRL, KEY(j), goforward },
    { CTRL, KEY(r), refresh },
    { CTRL, KEY(R), refresh_force },
    { CTRL, KEY(H), back_to_home },
    { CTRL, KEY(equal), zoomin },
    { CTRL, KEY(minus), zoomout },
    { CTRL, KEY(0), zoom_reset },
    { CTRL, KEY(KP_Page_Up), prev_tab }, /* also try KEY(Page_Up) if this doesn't work on your machine */
    { CTRL, KEY(KP_Page_Down), next_tab }, /* ditto for KEY(Page_Down) */
    { CTRL, KEY(t), new_tab },
    { CTRL, KEY(w), close_tab },
    { 0x0, KEY(F11), toggle_fullscreen },
    { CTRL, KEY(l), show_searchbar },
    { CTRL, KEY(semicolon), hide_bar },
    { CTRL, KEY(f), show_finder },
    { CTRL, KEY(n), finder_next },
    { CTRL, KEY(N), finder_prev },
    { CTRL, KEY(p), prettify }
};

static GtkNotebook* notebook;
static GtkWindow* window;
static struct {
    GtkHeaderBar* widget;
    GtkEntry* line;
    GtkEntryBuffer* line_text;
    enum { _SEARCH,
        _FIND,
        _HIDDEN } entry_mode;
} bar;
static int num_tabs = 0;

void notebook_create_new_tab(GtkNotebook* notebook, const char* uri);

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 (strlen(uri) == 0) {
        webkit_web_view_load_uri(view, "");
    } else 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 {
        char tmp[strlen(uri) + strlen(SEARCH)];
        snprintf(tmp, sizeof(tmp), SEARCH, uri);
        webkit_web_view_load_uri(view, tmp);
    }
}

void handle_signal_load_changed(WebKitWebView* self, WebKitLoadEvent load_event,
    GtkNotebook* notebook)
{
    switch (load_event) {
        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);
        }
    }
}

GtkWidget* handle_signal_create_new_tab(WebKitWebView* self,
    WebKitNavigationAction* navigation_action,
    GtkNotebook* notebook)
{
    if (num_tabs < MAX_NUM_TABS || num_tabs == 0) {
        WebKitURIRequest* uri_request = webkit_navigation_action_get_request(navigation_action);
        const char* uri = webkit_uri_request_get_uri(uri_request);
        notebook_create_new_tab(notebook, uri);
        gtk_notebook_set_show_tabs(notebook, 1);
    } else {
        webkit_web_view_evaluate_javascript(self, "alert('Too many tabs, not opening a new one')", -1, NULL, "rosenrot-alert-numtabs", NULL, NULL, NULL);
    }
    return NULL;
}

WebKitWebView* create_new_webview()
{
    char* style;
    WebKitSettings* settings;
    WebKitWebContext* web_context;
    WebKitCookieManager* cookiemanager;
    WebKitUserContentManager* contentmanager;

    settings = webkit_settings_new_with_settings(WEBKIT_DEFAULT_SETTINGS, NULL);
    web_context = webkit_web_context_new_with_website_data_manager(webkit_website_data_manager_new(DATA_MANAGER_OPTS, NULL));
    contentmanager = webkit_user_content_manager_new();
    cookiemanager = webkit_web_context_get_cookie_manager(web_context);

    webkit_cookie_manager_set_persistent_storage(cookiemanager, DATA_DIR "/cookies.sqlite", WEBKIT_COOKIE_PERSISTENT_STORAGE_SQLITE);
    webkit_cookie_manager_set_accept_policy(cookiemanager, WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS);

    return g_object_new(WEBKIT_TYPE_WEB_VIEW, "settings", settings, "web-context", web_context, "user-content-manager", contentmanager, NULL);
}

void notebook_create_new_tab(GtkNotebook* notebook, const char* uri)
{
    if (num_tabs < MAX_NUM_TABS || MAX_NUM_TABS == 0) {
        WebKitWebView* view = create_new_webview();

        g_signal_connect(view, "load_changed", G_CALLBACK(handle_signal_load_changed), notebook);
        g_signal_connect(view, "create", G_CALLBACK(handle_signal_create_new_tab), notebook);

        int n = gtk_notebook_append_page(notebook, GTK_WIDGET(view), NULL);
        gtk_notebook_set_tab_reorderable(notebook, GTK_WIDGET(view), 1);
        gtk_widget_show_all(GTK_WIDGET(window));
        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);
        num_tabs += 1;
    } else {
        webkit_web_view_evaluate_javascript(notebook_get_webview(notebook), "alert('Too many tabs, not opening a new one')",
            -1, NULL, "rosenrot-alert-numtabs", NULL, NULL, NULL);
    }
}

void handle_signal_bar_press_enter(GtkEntry* self, GtkNotebook* notebook)
{
    if (bar.entry_mode == _SEARCH)
        load_uri(notebook_get_webview(notebook), gtk_entry_buffer_get_text(bar.line_text));
    else if (bar.entry_mode == _FIND)
        webkit_find_controller_search(
            webkit_web_view_get_find_controller(notebook_get_webview(notebook)),
            gtk_entry_buffer_get_text(bar.line_text),
            WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE | WEBKIT_FIND_OPTIONS_WRAP_AROUND,
            G_MAXUINT);
}

/* Handle shortcuts */
int handle_shortcut(func id, GtkNotebook* notebook)
{
    static double zoom = ZOOM;
    static bool is_fullscreen = 0;

    WebKitWebView* view = notebook_get_webview(notebook);

    switch (id) {
        case goback:
            webkit_web_view_go_back(view);
            break;
        case goforward:
            webkit_web_view_go_forward(view);
            break;

        case refresh:
            webkit_web_view_reload(view);
            break;
        case refresh_force:
            webkit_web_view_reload_bypass_cache(view);
            break;

        case back_to_home:
            load_uri(view, HOME);
            break;

        case zoomin:
            webkit_web_view_set_zoom_level(view,
                (zoom += ZOOM_VAL));
            break;
        case zoomout:
            webkit_web_view_set_zoom_level(view,
                (zoom -= ZOOM_VAL));
            break;
        case zoom_reset:
            webkit_web_view_set_zoom_level(view,
                (zoom = ZOOM));
            break;

        case prev_tab:; // declarations aren't statements
            // <https://stackoverflow.com/questions/923