rosenrot/rosenrot4.c

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18 KiB
C
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#include <gtk/gtk.h>
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#include <stdlib.h>
#include <string.h>
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#include "config.h"
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#include "plugins/plugins.h"
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#include <webkit/webkit.h>
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/* Global declarations */
static GtkNotebook* notebook;
static GtkWidget* window;
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typedef enum { _SEARCH,
_FIND,
_HIDDEN } Bar_entry_mode;
static struct {
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GtkHeaderBar* widget;
GtkEntry* line;
GtkEntryBuffer* line_text;
Bar_entry_mode entry_mode;
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} bar;
static int num_tabs = 0;
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static int custom_style_enabled = 1;
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/* Forward declarations */
void toggle_bar(GtkNotebook* notebook, Bar_entry_mode mode);
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void notebook_create_new_tab(GtkNotebook* notebook, const char* uri);
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/* Utils */
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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}
/* Load content*/
void load_uri(WebKitWebView* view, const char* uri)
{
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if (strlen(uri) == 0) {
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webkit_web_view_load_uri(view, "");
toggle_bar(notebook, _SEARCH);
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} 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 if (strstr(uri, ".com") || strstr(uri, ".org")) {
char tmp[strlen("https://") + strlen(uri) + 1];
snprintf(tmp, sizeof(tmp) + 1, "https://%s", uri);
webkit_web_view_load_uri(view, tmp);
} else {
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// Check for shortcuts
int l = SHORTCUT_N + strlen(uri) + 1;
char uri_expanded[l];
str_init(uri_expanded, l);
int check = shortcut_expand(uri, uri_expanded);
if (check == 2) {
webkit_web_view_load_uri(view, uri_expanded);
} else {
// Feed into search engine.
char tmp[strlen(uri) + strlen(SEARCH)];
snprintf(tmp, sizeof(tmp), SEARCH, uri);
webkit_web_view_load_uri(view, tmp);
}
}
}
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/* Deal with new load or changed load */
void redirect_if_annoying(WebKitWebView* view, const char* uri)
{
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if (LIBRE_REDIRECT_ENABLED) {
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);
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if (check == 2) webkit_web_view_load_uri(view, uri_filtered);
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}
}
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void set_custom_style(WebKitWebView* view)
{
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if (custom_style_enabled) {
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char* style_js = malloc(STYLE_N + 1);
read_style_js(style_js);
webkit_web_view_evaluate_javascript(view, style_js, -1, NULL, "rosenrot-style-plugin", NULL, NULL, NULL);
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free(style_js);
}
}
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void handle_signal_load_changed(WebKitWebView* self, WebKitLoadEvent load_event,
GtkNotebook* notebook)
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{
switch (load_event) {
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// https://webkitgtk.org/reference/webkit2gtk/2.5.1/WebKitWebView.html
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case WEBKIT_LOAD_STARTED:
case WEBKIT_LOAD_COMMITTED:
set_custom_style(self);
case WEBKIT_LOAD_REDIRECTED:
redirect_if_annoying(self, webkit_web_view_get_uri(self));
break;
case WEBKIT_LOAD_FINISHED: {
set_custom_style(self);
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/* 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;
}
}
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tab_title[max_length] = '\0';
}
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gtk_notebook_set_tab_label_text(notebook, GTK_WIDGET(self),
webpage_title == NULL ? "" : tab_title);
}
}
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}
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/* Create new tabs */
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GtkWidget* handle_signal_create_new_tab(WebKitWebView* self,
WebKitNavigationAction* navigation_action,
GtkNotebook* notebook)
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{
if (num_tabs < MAX_NUM_TABS || num_tabs == 0) {
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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_create_new_tab(notebook, uri);
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gtk_notebook_set_show_tabs(notebook, true);
} else {
webkit_web_view_evaluate_javascript(self, "alert('Too many tabs, not opening a new one')", -1, NULL, "rosenrot-alert-numtabs", NULL, NULL, NULL);
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}
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return NULL;
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/*
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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_create_new_tab
or duplicating its contents, for unclear gain.
*/
}
WebKitWebView* create_new_webview()
{
char* style;
WebKitSettings* settings;
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// WebKitWebContext* web_context;
WebKitCookieManager* cookiemanager;
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WebKitNetworkSession* network_session; // new
WebKitUserContentManager* contentmanager;
settings = webkit_settings_new_with_settings(WEBKIT_DEFAULT_SETTINGS, NULL);
if (CUSTOM_USER_AGENT) {
webkit_settings_set_user_agent(
settings,
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, "
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"like Gecko) Chrome/120.0.0.0 Safari/537.3");
// https://www.useragents.me
}
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network_session = webkit_network_session_new(DATA_DIR, DATA_DIR);
// 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();
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cookiemanager = webkit_network_session_get_cookie_manager(network_session);
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webkit_cookie_manager_set_persistent_storage(cookiemanager, DATA_DIR "/cookies.sqlite", WEBKIT_COOKIE_PERSISTENT_STORAGE_SQLITE);
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webkit_cookie_manager_set_accept_policy(cookiemanager, WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS);
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if (g_file_get_contents("~/opt/rosenrot/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));
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}
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return g_object_new(WEBKIT_TYPE_WEB_VIEW, "settings", settings, "network-session", network_session, "user-content-manager", contentmanager, NULL);
}
void notebook_create_new_tab(GtkNotebook* notebook, const char* uri)
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{
if (num_tabs < MAX_NUM_TABS || MAX_NUM_TABS == 0) {
WebKitWebView* view = create_new_webview();
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// 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);
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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);
gtk_widget_set_visible(GTK_WIDGET(window), 1);
gtk_widget_set_visible(GTK_WIDGET(bar.widget), 0);
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load_uri(view, (uri) ? uri : HOME);
set_custom_style(view);
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gtk_notebook_set_current_page(notebook, n);
gtk_notebook_set_tab_label_text(notebook, GTK_WIDGET(view), "-");
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webkit_web_view_set_zoom_level(view, ZOOM_START_LEVEL);
num_tabs += 1;
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} else {
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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);
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}
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}
/* Top bar */
void toggle_bar(GtkNotebook* notebook, Bar_entry_mode mode)
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{
bar.entry_mode = mode;
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switch (bar.entry_mode) {
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case _SEARCH: {
const char* url = webkit_web_view_get_uri(notebook_get_webview(notebook));
gtk_entry_set_placeholder_text(bar.line, "Search");
gtk_entry_buffer_set_text(bar.line_text, url, strlen(url));
gtk_widget_show(GTK_WIDGET(bar.widget));
gtk_window_set_focus(window, GTK_WIDGET(bar.line));
break;
}
case _FIND: {
const char* search_text = webkit_find_controller_get_search_text(
webkit_web_view_get_find_controller(notebook_get_webview(notebook)));
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if (search_text != NULL)
gtk_entry_buffer_set_text(bar.line_text, search_text, strlen(search_text));
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gtk_entry_set_placeholder_text(bar.line, "Find");
gtk_widget_show(GTK_WIDGET(bar.widget));
gtk_window_set_focus(window, GTK_WIDGET(bar.line));
break;
}
case _HIDDEN:
gtk_widget_hide(GTK_WIDGET(bar.widget));
}
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}
// Handle what happens when the user is on the bar and presses enter
void handle_signal_bar_press_enter(GtkEntry* self, GtkNotebook* notebook)
{
if (bar.entry_mode == _SEARCH)
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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);
gtk_widget_hide(GTK_WIDGET(bar.widget));
}
/* Handle shortcuts */
// Act when a particular shortcut is detected
int handle_shortcut(func id, GtkNotebook* notebook)
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{
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static double zoom = ZOOM_START_LEVEL;
static bool is_fullscreen = 0;
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WebKitWebView* view = notebook_get_webview(notebook);
switch (id) {
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case goback:
webkit_web_view_go_back(view);
break;
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case goforward:
webkit_web_view_go_forward(view);
break;
case toggle_custom_style: /* Ctrl s + Ctrl Shift R to reload */
if (custom_style_enabled)
custom_style_enabled = 0;
else
custom_style_enabled = 1;
// break; passthrough
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case refresh:
webkit_web_view_reload(view);
break;
case refresh_force:
webkit_web_view_reload_bypass_cache(view);
break;
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case back_to_home:
load_uri(view, HOME);
break;
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case zoomin:
webkit_web_view_set_zoom_level(view,
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(zoom += ZOOM_STEPSIZE));
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break;
case zoomout:
webkit_web_view_set_zoom_level(view,
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(zoom -= ZOOM_STEPSIZE));
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break;
case zoom_reset:
webkit_web_view_set_zoom_level(view,
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(zoom = ZOOM_START_LEVEL));
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break;
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case prev_tab:; // declarations aren't statements
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// https://stackoverflow.com/questions/92396/why-cant-variables-be-declared-in-a-switch-statement
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int n = gtk_notebook_get_n_pages(notebook);
int k = gtk_notebook_get_current_page(notebook);
int l = (n + k - 1) % n;
gtk_notebook_set_current_page(notebook, l);
break;
case next_tab:;
int m = gtk_notebook_get_n_pages(notebook);
int i = gtk_notebook_get_current_page(notebook);
int j = (i + 1) % m;
gtk_notebook_set_current_page(notebook, j);
break;
case close_tab:
gtk_notebook_remove_page(notebook, gtk_notebook_get_current_page(notebook));
num_tabs -= 1;
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switch (gtk_notebook_get_n_pages(notebook)) {
case 0:
exit(0);
break;
case 1:
gtk_notebook_set_show_tabs(notebook, false);
break;
}
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break;
case toggle_fullscreen:
if (is_fullscreen)
gtk_window_unfullscreen(window);
else
gtk_window_fullscreen(window);
is_fullscreen = !is_fullscreen;
break;
case show_searchbar:
toggle_bar(notebook, _SEARCH);
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break;
case show_finder:
toggle_bar(notebook, _FIND);
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break;
case finder_next:
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webkit_find_controller_search_next(webkit_web_view_get_find_controller(view));
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break;
case finder_prev:
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webkit_find_controller_search_previous(webkit_web_view_get_find_controller(view));
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break;
case new_tab:
notebook_create_new_tab(notebook, NULL);
gtk_notebook_set_show_tabs(notebook, true);
toggle_bar(notebook, _SEARCH);
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break;
case hide_bar:
toggle_bar(notebook, _HIDDEN);
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break;
case prettify: {
if (READABILITY_ENABLED) {
char* readability_js = malloc(READABILITY_N + 1);
read_readability_js(readability_js);
webkit_web_view_evaluate_javascript(view, readability_js, -1, NULL, "rosenrot-readability-plugin", NULL, NULL, NULL);
free(readability_js);
}
break;
}
}
return 1;
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}
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// Listen to key presses and call shortcuts if needed.
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int handle_signal_keypress(void* self, GdkEvent* event, GtkNotebook* notebook)
{
(void)self;
guint event_keyval = gdk_key_event_get_keyval(event);
GdkModifierType event_state = gdk_event_get_modifier_state(event);
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/* https://docs.gtk.org/gdk4/keys.html, https://gitlab.gnome.org/GNOME/gtk/-/blob/main/gdk/gdkevents.h */
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if (1) {
printf("Keypress state: %d\n", event_state);
printf("Keypress value: %d\n", event_keyval);
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}
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for (int i = 0; i < sizeof(shortcut) / sizeof(shortcut[0]); i++)
if ((event_state & shortcut[i].mod || shortcut[i].mod == 0x0) && event_keyval == shortcut[i].key)
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return handle_shortcut(shortcut[i].id, notebook);
/*
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If I wanted to bind button presses, like the extra button in the mouse,
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I would have to bind the button-press-event signal instead.
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Some links in case I go down that road:
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- https://docs.gtk.org/gtk3/signal.Widget.button-press-event.html
- https://docs.gtk.org/gdk3/union.Event.html
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- https://docs.gtk.org/gdk3/struct.EventButton.html
*/
// This API is deprecated in GTK4 :(.
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return 0;
}
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static int rose_keypress_event(GtkEventControllerKey* event_controller, int keyval, int keycode,
GdkModifierType state, GtkNotebook* notebook)
{
printf("New keypress!\n");
/*
if (1) {
printf("Keypress state: %d\n", state);
printf("Keypress value: %d\n", keyval);
}
for (int i = 0; i < sizeof(shortcut) / sizeof(shortcut[0]); i++){
if ((state & shortcut[i].mod || shortcut[i].mod == 0x0) && keyval == shortcut[i].key) {
return handle_shortcut(shortcut[i].id, notebook);
}
}
*/
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return 0;
}
int main(int argc, char** argv)
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{
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/* Initialize GTK in general */
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gtk_init();
// g_object_set(gtk_settings_get_default(), GTK_SETTINGS_CONFIG_H, NULL); // https://docs.gtk.org/gobject/method.Object.set.html
// GtkCssProvider* css = gtk_css_provider_new();
// gtk_css_provider_load_from_path(css, "/opt/rosenrot/style.css");
// gtk_style_context_add_provider_for_display(gdk_display_get_default(), GTK_STYLE_PROVIDER(css), 800); /* might change with GTK4/webkitgtk6.0 */
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/* Initialize GTK objects. These are declared as static globals at the top of this file */
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// Notebook
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notebook = GTK_NOTEBOOK(gtk_notebook_new());
gtk_notebook_set_show_tabs(notebook, false);
gtk_notebook_set_show_border(notebook, false);
// Window
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window = GTK_WINDOW(gtk_window_new());
gtk_window_set_default_size(window, WIDTH, HEIGHT);
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// GtkEventController *event_controller = gtk_event_controller_key_new();
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// gtk_widget_add_controller(GTK_WIDGET(window), event_controller);
// g_signal_connect(event_controller, "key-pressed", G_CALLBACK(rose_keypress_event), notebook);
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// gtk_widget_add_controller(GTK_WIDGET(notebook), event_controller);
/*
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GtkEventController *event_controller = gtk_event_controller_key_new();
// g_signal_connect(event_controller, "key-pressed", G_CALLBACK(handle_signal_keypress), NULL);
g_signal_connect(event_controller, "key-pressed", G_CALLBACK(handle_signal_keypress), notebook);
gtk_widget_add_controller(GTK_WIDGET(window), event_controller);
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g_signal_connect(window, "destroy", G_CALLBACK(exit), notebook);
*/
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gtk_window_set_child(window, GTK_WIDGET(notebook));
// gtk_window_set_child(GTK_CONTAINER(window), GTK_WIDGET(notebook));
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// Bar
/*
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bar.line_text = GTK_ENTRY_BUFFER(gtk_entry_buffer_new("", 0));
bar.line = GTK_ENTRY(gtk_entry_new_with_buffer(bar.line_text));
gtk_entry_set_alignment(bar.line, 0.48);
gtk_widget_set_size_request(GTK_WIDGET(bar.line), BAR_SIZE, -1);
// g_signal_connect(bar.line, "activate", G_CALLBACK(handle_signal_bar_press_enter), notebook);
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bar.widget = GTK_HEADER_BAR(gtk_header_bar_new());
gtk_header_bar_set_title_widget(bar.widget, GTK_WIDGET(bar.line));
gtk_window_set_titlebar(window, GTK_WIDGET(bar.widget));
*/
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/* Load first tab */
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char* first_uri = argc > 1 ? argv[1] : HOME;
notebook_create_new_tab(notebook, first_uri);
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/* Show to user */
// gtk_widget_set_visible(GTK_WIDGET(window), 1);
// if (argc != 0) gtk_widget_set_visible(GTK_WIDGET(bar.widget), 0);
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/* Deal with more tabs */
if (argc > 2) {
gtk_notebook_set_show_tabs(notebook, true);
for (int i = 2; i < argc; i++) {
notebook_create_new_tab(notebook, argv[i]);
}
}
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while (g_list_model_get_n_items(gtk_window_get_toplevels()) > 0)
g_main_context_iteration(NULL, TRUE);
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}