#include "exampleapp.h"
#include "exampleappwin.h"
#include <gtk/gtk.h>

struct ExampleAppWindow {
        GtkApplicationWindow parent;
};

struct ExampleAppWindowClass {
        GtkApplicationWindowClass parent_class;
};

typedef struct ExampleAppWindowPrivate ExampleAppWindowPrivate;

struct ExampleAppWindowPrivate {
        GSettings *settings;
        GtkWidget *stack;
};

G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW);

static void
example_app_window_init (ExampleAppWindow *win)
{
        ExampleAppWindowPrivate *priv;

        priv = example_app_window_get_instance_private (win);
        gtk_widget_init_template (GTK_WIDGET (win));
        priv->settings = g_settings_new ("org.gtk.exampleapp");

        g_settings_bind (priv->settings, "transition",
                         priv->stack, "transition-type",
                         G_SETTINGS_BIND_DEFAULT);
}

static void
example_app_window_dispose (GObject *object)
{
        ExampleAppWindow *win;
        ExampleAppWindowPrivate *priv;

        win = EXAMPLE_APP_WINDOW (object);
        priv = example_app_window_get_instance_private (win);

        g_clear_object (&priv->settings);

        G_OBJECT_CLASS (example_app_window_parent_class)->dispose (object);
}

static void
example_app_window_class_init (ExampleAppWindowClass *class)
{
        G_OBJECT_CLASS (class)->dispose = example_app_window_dispose;

        gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                     "/org/gtk/exampleapp/window.ui");
        gtk_widget_class_bind_child (GTK_WIDGET_CLASS (class), ExampleAppWindowPrivate, stack);
}

ExampleAppWindow *
example_app_window_new (ExampleApp *app)
{
        return g_object_new (EXAMPLE_APP_WINDOW_TYPE, "application", app, NULL);
}

void
example_app_window_open (ExampleAppWindow *win,
                         GFile            *file)
{
        ExampleAppWindowPrivate *priv;
        gchar *basename;
        GtkWidget *scrolled, *view;
        gchar *contents;
        gsize length;
        GtkTextBuffer *buffer;
        GtkTextTag *tag;
        GtkTextIter start_iter, end_iter;

        priv = example_app_window_get_instance_private (win);
        basename = g_file_get_basename (file);

        scrolled = gtk_scrolled_window_new (NULL, NULL);
        gtk_widget_show (scrolled);
        gtk_widget_set_hexpand (scrolled, TRUE);
        gtk_widget_set_vexpand (scrolled, TRUE);
        view = gtk_text_view_new ();
        gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
        gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
        gtk_widget_show (view);
        gtk_container_add (GTK_CONTAINER (scrolled), view);
        gtk_stack_add_titled (GTK_STACK (priv->stack), scrolled, basename, basename);

        buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));

        if (g_file_load_contents (file, NULL, &contents, &length, NULL, NULL)) {
                gtk_text_buffer_set_text (buffer, contents, length);
                g_free (contents);
        }

        tag = gtk_text_buffer_create_tag (buffer, NULL, NULL);
        g_settings_bind (priv->settings, "font", tag, "font", G_SETTINGS_BIND_DEFAULT);

        gtk_text_buffer_get_start_iter (buffer, &start_iter);
        gtk_text_buffer_get_end_iter (buffer, &end_iter);
        gtk_text_buffer_apply_tag (buffer, tag, &start_iter, &end_iter);

        g_free (basename);
}