gtkWebkitScrollTest.c

//
//  gtkWebkitScrollTest.c
//
//  A test of a scrollable container (horizontal and vertical) using GTK Webkit.
//
//  Created by Nick Salerni on 2014-07-06.
//

#include <gtk/gtk.h>
#include <webkit/webkit.h>

static void destroyWindowCb(GtkWidget* widget, GtkWidget* window);
static gboolean closeWebViewCb(WebKitWebView* webView, GtkWidget* window);

int main(int argc, char* argv[])
{
    // Initialize GTK+.
    gtk_init(&argc, &argv);

    // Create an 800 x 600 window that will contain the browser instance.
    GtkWidget *main_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_default_size(GTK_WINDOW(main_window), 800, 600);

    // Create a browser instance.
    WebKitWebView *webView = WEBKIT_WEB_VIEW(webkit_web_view_new());

    // Create a scrollable area, and add the browser instance to it.
    GtkWidget *scrolledWindow = gtk_scrolled_window_new(NULL, NULL);
    gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledWindow), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    gtk_container_add(GTK_CONTAINER(scrolledWindow), GTK_WIDGET(webView));

    // Set up callbacks so that if either the main window or the browser instance is closed, the program will exit.
    g_signal_connect(main_window, "destroy", G_CALLBACK(destroyWindowCb), NULL);
    g_signal_connect(webView, "close-web-view", G_CALLBACK(closeWebViewCb), main_window);

    // Add the scrollable area to the main window.
    gtk_container_add(GTK_CONTAINER(main_window), scrolledWindow);

    // Load a web page into the browser instance.
    webkit_web_view_load_uri(webView, "http://www.fsf.org/");

    // Make sure that when the browser area becomes visible, it will accept mouse and keyboard events.
    gtk_widget_grab_focus(GTK_WIDGET(webView));

    // Make sure the main window and all its contents are visible.
    gtk_widget_show_all(main_window);

    // Run the main GTK+ event loop.
    gtk_main();

    return 0;
}

static void destroyWindowCb(GtkWidget* widget, GtkWidget* window)
{
    gtk_main_quit();
}

static gboolean closeWebViewCb(WebKitWebView* webView, GtkWidget* window)
{
    gtk_widget_destroy(window);
    return TRUE;
}