GTK4: start trying to compile with gtk4

TODO.md

@@ -13,6 +13,7 @@
   - Instructions for GTK-4 [here](https://docs.gtk.org/gtk4/migrating-3to4.html)
   - [ ] Prepare for GTK-3 to GTK-4 transition
     - [ ] Understand wtf is going on with signals and events: <https://docs.gtk.org/gtk4/migrating-3to4.html#stop-using-gtkwidget-event-signals>. <https://github.com/mini-rose/rose-browser/blob/288bf060d095c4895946669ae50d14193168b69c/src/window.c#L42>
+    - [ ] Stop using direct access to GdkEvent structs
   - [ ] Remove webkit2gtk-4.1 and download webkit2gtk-6.0
   - [ ] Attempt to compile
 

config.h

@@ -1,6 +1,9 @@
 #include <stdbool.h>
 #include <gdk/gdk.h> // <gdk/gdkenums.h>, <gdk/gdkkeysyms.h>
 
+// GKG 3 or GKG 4
+# define GKG_NUM 4
+
 // Key user config
 #define WIDTH 1920 // 960 for half-width, 1920 for full width
 // #define HEIGHT 1080

makefile

@@ -7,7 +7,8 @@ DEBUG= # -g
 STD=-std=c99 # maybe consider moving to c11 and using safer string handling
 
 # Dependencies
-DEPS='webkit2gtk-4.1'
+# DEPS='webkit2gtk-4.1'
+DEPS='webkitgtk-6.0'
 INCS=`pkg-config --cflags ${DEPS}`
 LIBS=`pkg-config --libs ${DEPS}`
 
@@ -30,8 +31,13 @@ MAINTAINER_CACHE_DIR=/home/nuno/.cache/rosenrot
 USER_CACHE_DIR=/home/`whoami`/.cache/rosenrot
 RUNTIME_FILES_DIR=/opt/rosenrot/
 
+# Start 3 to 4 transition 
+# https://docs.gtk.org/gtk4/migrating-3to4.html
+# https://github.com/WebKit/WebKit/blob/ed1422596dce5ff012e64a38faf402ac1674fc7e/Source/WebKit/gtk/migrating-to-webkitgtk-6.0.md
+# DEPRECATION_FLAGS=-DGDK_DISABLE_DEPRECATED -DGTK_DISABLE_DEPRECATED
+
 build: $(SRC) $(PLUGINS) $(CONFIG) constants user_cache
-	$(CC) $(STD) $(WARNINGS) $(OPTIMIZED_MORE) $(DEBUG) $(INCS) $(PLUGINS) $(SRC) -o rosenrot $(LIBS) $(ADBLOCK)
+	$(CC) $(STD) $(WARNINGS) $(DEPRECATION_FLAGS) $(OPTIMIZED_MORE) $(DEBUG) $(INCS) $(PLUGINS) $(SRC) -o rosenrot $(LIBS) $(ADBLOCK)
 	@echo
 
 constants:

rosenrot.c

@@ -1,7 +1,13 @@
 #include <gdk/gdk.h>
 #include <stdlib.h>
 #include <string.h>
+
+#if GKG_NUM == 3
     #include <webkit2/webkit2.h>
+#elif GKG_NUM == 4
+    #include <webkit/webkit.h>
+#endif
+
 
 #include "config.h"
 #include "plugins/plugins.h"
@@ -380,7 +386,7 @@ int handle_signal_keypress(void* self, GdkEvent* event, GtkNotebook* notebook)
     - https://docs.gtk.org/gdk3/union.Event.html
     - https://docs.gtk.org/gdk3/struct.EventButton.html
     */
-    // This API is deprecated in GTK4 :(
+    // This API is deprecated in GTK4 :(.
     return 0;
 }
 
@@ -391,7 +397,7 @@ int main(int argc, char** argv)
     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", NULL);
-    gtk_style_context_add_provider_for_screen(gdk_screen_get_default(), GTK_STYLE_PROVIDER(css), 800);
+    gtk_style_context_add_provider_for_screen(gdk_screen_get_default(), GTK_STYLE_PROVIDER(css), 800); /* might change with GTK4/webkitgtk6.0 */
 
     /* Initialize GTK objects. These are declared as static globals at the top of this file */
     // Notebook
@@ -404,7 +410,11 @@ int main(int argc, char** argv)
     gtk_window_set_default_size(window, WIDTH, HEIGHT);
     g_signal_connect(window, "key-press-event", G_CALLBACK(handle_signal_keypress), notebook);
     g_signal_connect(window, "destroy", G_CALLBACK(exit), notebook);
-    gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(notebook));
+    #if GKG_NUM == 3
+        gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(notebook)); /* deprecated in GKG */
+    #elif GKG_NUM == 4
+        gtk_window_set_child(GTK_CONTAINER(window), GTK_WIDGET(notebook))
+    #endif
 
     // Bar
     bar.line_text = GTK_ENTRY_BUFFER(gtk_entry_buffer_new("", 0));
@@ -433,5 +443,5 @@ int main(int argc, char** argv)
         }
     }
 
-    gtk_main();
+    gtk_main(); /* deprecated in GKT4: https://docs.gtk.org/gtk4/migrating-3to4.html#stop-using-gtk_main-and-related-apis */
 }

user-scripts/debian-12/install-with-dependencies.sh

@@ -1,6 +1,8 @@
 # Key dependencies
 sudo apt install git vim gcc make
 sudo apt install libwebkit2gtk-4.1-dev
+# sudo apt install libwebkitgtk-6.0-dev
+# sudo apt install libgtk-4-dev
 
 # Optional adblock
 git clone https://github.com/jun7/wyebadblock