astrognome/src/ag-app.c

#include <glib/gi18n.h>
#include <webkit2/webkit2.h>

#include "ag-app.h"
#include "ag-window.h"
#include "ag-chart.h"
#include "ag-preferences.h"
#include "config.h"
#include "astrognome.h"

typedef struct _AgAppPrivate {
    WebKitWebViewGroup *web_view_group;
} AgAppPrivate;

G_DEFINE_TYPE_WITH_PRIVATE(AgApp, ag_app, GTK_TYPE_APPLICATION);

GtkWindow *
ag_app_peek_first_window(AgApp *app)
{
    GList *l;

    for (
         l = gtk_application_get_windows(GTK_APPLICATION(app));
         l;
         l = g_list_next(l)) {
        if (GTK_IS_WINDOW(l->data)) {
            return GTK_WINDOW(l->data);
        }
    }

    ag_app_new_window(app);

    return ag_app_peek_first_window(app);
}

void
ag_app_new_window(AgApp *app)
{
    g_action_group_activate_action(G_ACTION_GROUP(app), "new-window", NULL);
}

void
ag_app_quit(AgApp *app)
{
    g_action_group_activate_action(G_ACTION_GROUP(app), "quit", NULL);
}

void
ag_app_raise(AgApp *app)
{
    g_action_group_activate_action(G_ACTION_GROUP(app), "raise", NULL);
}

static GtkWidget *
ag_app_create_window(AgApp *app)
{
    GtkWidget *window;
    AgAppPrivate *priv = ag_app_get_instance_private(app);

    window = ag_window_new(app, priv->web_view_group);
    gtk_application_add_window(GTK_APPLICATION(app), GTK_WINDOW(window));
    gtk_widget_show_all(window);

    return window;
}

static void
new_window_cb(GSimpleAction *action, GVariant *parameter, gpointer user_data)
{
    ag_app_create_window(AG_APP(user_data));
}

static void
preferences_cb(GSimpleAction *action, GVariant *parameter, gpointer user_data)
{
    AgApp *app = AG_APP(user_data);
    GtkWindow *window;

    window = ag_app_peek_first_window(app);
    ag_preferences_show_dialog(window);
}

static void
about_cb(GSimpleAction *action, GVariant *parameter, gpointer user_data)
{
    const gchar *authors[] = {
        "Gergely Polonkai <gergely@polonkai.eu>",
        "Jean-André Santoni <jean.andre.santoni@gmail.com>",
        NULL
    };

    const gchar **documentors       = NULL;
    const gchar *translator_credits = _("translator_credits");

    /* i18n: Please don't translate "Astrognome" (it's marked as translatable
     * for transliteration only */
    gtk_show_about_dialog(NULL,
                          "name", _("Astrognome"),
                          "version", PACKAGE_VERSION,
                          "comments", _("Astrologers' software for GNOME"),
                          "authors", authors,
                          "documentors", documentors,
                          "translator_credits", ((strcmp(
                                                         translator_credits,
                                                         "translator_credits"
                                                     ) != 0)
                                                 ? translator_credits
                                                 : NULL),
                          "website", PACKAGE_URL,
                          "website-label", _("Astrognome Website"),
                          "logo-icon-name", PACKAGE_TARNAME,
                          NULL);
}

static void
quit_cb(GSimpleAction *action, GVariant *parameter, gpointer user_data)
{
    GList *l;

    while ((l = gtk_application_get_windows(GTK_APPLICATION(user_data)))) {
        gtk_application_remove_window(
                GTK_APPLICATION(user_data),
                GTK_WINDOW(l->data)
            );
    }
}

static void
ag_app_open_chart(AgApp *app, GFile *file)
{
    GtkWidget *window;
    AgChart   *chart;
    GError    *err = NULL;
    gchar     *uri;

    if ((chart = ag_chart_load_from_file(file, &err)) == NULL) {
        g_print("Error: '%s'\n", err->message);

        return;
    }

    window = ag_app_create_window(app);
    ag_window_set_chart(AG_WINDOW(window), chart);
    ag_window_update_from_chart(AG_WINDOW(window));
    uri = g_file_get_uri(file);
    ag_window_set_uri(AG_WINDOW(window), uri);
    g_free(uri);
    ag_window_change_tab(AG_WINDOW(window), "chart");
}

static void
open_cb(GSimpleAction *action, GVariant *parameter, gpointer user_data)
{
    gint      response;
    GtkWidget *fs;
    GSList    *filenames = NULL;

    fs = gtk_file_chooser_dialog_new(_("Select charts"),
                                     NULL,
                                     GTK_FILE_CHOOSER_ACTION_OPEN,
                                     _("_Cancel"), GTK_RESPONSE_CANCEL,
                                     _("_Open"), GTK_RESPONSE_ACCEPT,
                                     NULL);
    gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(fs), filter_all);
    gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(fs), filter_chart);
    gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(fs), filter_chart);
    gtk_dialog_set_default_response(GTK_DIALOG(fs), GTK_RESPONSE_ACCEPT);
    gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(fs), TRUE);
    gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(fs), FALSE);

    response = gtk_dialog_run(GTK_DIALOG(fs));

    if (response == GTK_RESPONSE_ACCEPT) {
        filenames = gtk_file_chooser_get_uris(GTK_FILE_CHOOSER(fs));
    }

    if (filenames != NULL) {
        GSList *l;

        for (l = filenames; l; l = g_slist_next(l)) {
            GFile *file;
            char  *data = l->data;

            if (data == NULL) {
                continue;
            }

            file = g_file_new_for_commandline_arg(data);
            ag_app_open_chart(AG_APP(user_data), file);
        }
    }

    gtk_widget_destroy(fs);
}

static void
raise_cb(GSimpleAction *action, GVariant *parameter, gpointer user_data)
{
    AgApp     *app = AG_APP(user_data);
    GtkWindow *window;

    window = ag_app_peek_first_window(app);
    gtk_window_present(window);
}

static void
show_help(const gchar *topic, GtkWindow *parent)
{
    gchar     *uri;
    GdkScreen *screen;
    GError    *err = NULL;

    if (topic) {
        uri = g_strdup_printf("help:astrognome/%s", topic);
    } else {
        uri = g_strdup("help:astrognome");
    }

    if (parent) {
        screen = gtk_widget_get_screen(GTK_WIDGET(parent));
    } else {
        screen = gdk_screen_get_default();
    }

    if (!gtk_show_uri(screen, uri, gtk_get_current_event_time(), &err)) {
        ag_app_message_dialog(
                GTK_WIDGET(parent),
                GTK_MESSAGE_WARNING,
                "Unable to display help: %s",
                err->message
            );
    }

    g_free(uri);
}

static void
help_cb(GSimpleAction *action, GVariant *parameter, gpointer user_data)
{
    show_help(NULL, NULL);
}

static GActionEntry app_entries[] = {
    { "new-window",  new_window_cb,  NULL, NULL, NULL },
    { "preferences", preferences_cb, NULL, NULL, NULL },
    { "about",       about_cb,       NULL, NULL, NULL },
    { "quit",        quit_cb,        NULL, NULL, NULL },
    { "raise",       raise_cb,       NULL, NULL, NULL },
    { "open",        open_cb,        NULL, NULL, NULL },
    { "help",        help_cb,        NULL, NULL, NULL },
};

static void
setup_actions(AgApp *app)
{
    g_action_map_add_action_entries(
            G_ACTION_MAP(app),
            app_entries,
            G_N_ELEMENTS(app_entries),
            app
        );
}

static void
setup_accelerators(AgApp *app)
{
    gtk_application_add_accelerator(
            GTK_APPLICATION(app),
            "<Primary>w",
            "win.close",
            NULL
        );
    gtk_application_add_accelerator(
            GTK_APPLICATION(app),
            "<Primary>s",
            "win.save",
            NULL
        );
    gtk_application_add_accelerator(
            GTK_APPLICATION(app),
            "<Primary><Shift>s",
            "win.save-as",
            NULL
        );
    gtk_application_add_accelerator(
            GTK_APPLICATION(app),
            "F10",
            "win.gear-menu",
            NULL
        );
    gtk_application_add_accelerator(
            GTK_APPLICATION(app),
            "F1",
            "app.help",
            NULL
        );
    gtk_application_add_accelerator(
            GTK_APPLICATION(app),
            "F5",
            "win.change-tab",
            g_variant_new_string("chart")
        );
    gtk_application_add_accelerator(
            GTK_APPLICATION(app),
            "F9",
            "win.change-tab",
            g_variant_new_string("aspects")
        );
}

static void
setup_menu(AgApp *app)
{
    GtkBuilder *builder;
    GMenuModel *model;
    GError     *err = NULL;

    builder = gtk_builder_new();

    if (!gtk_builder_add_from_resource(
                builder,
                "/eu/polonkai/gergely/Astrognome/ui/astrognome.ui",
                &err
            )) {
        g_error("%s", (err) ? err->message : "unknown error");
    }

    model = G_MENU_MODEL(gtk_builder_get_object(builder, "app-menu"));
    gtk_application_set_app_menu(GTK_APPLICATION(app), model);

    g_object_unref(builder);
}

static void
startup(GApplication *gapp)
{
    AgApp *app = AG_APP(gapp);

    G_APPLICATION_CLASS(ag_app_parent_class)->startup(gapp);

    setup_actions(app);
    setup_menu(app);
    setup_accelerators(app);
}

static void
ag_app_open(GApplication *gapp, GFile **files, gint n_files, const gchar *hint)
{
    gint i;

    for (i = 0; i < n_files; i++) {
        ag_app_open_chart(AG_APP(gapp), files[i]);
    }
}

void
ag_app_run_action(AgApp                   *app,
                  gboolean                is_remote,
                  const AstrognomeOptions *options)
{
    if (options && options->new_window) {
        if (is_remote) {
            ag_app_new_window(app);
        }
    } else if (options && options->quit) {
        ag_app_quit(app);
    } else if (is_remote) { // Keep this option the last one!
        ag_app_raise(app);
    }
}

static void
application_activate_cb(AgApp *app, gpointer user_data)
{
    ag_app_new_window(app);
    ag_app_run_action(app, FALSE, NULL);
}

AgApp *
ag_app_new(void)
{
    AgApp *app;

    /* i18n: Please don't translate "Astrognome" (it's marked as translatable
     * for transliteration only */
    g_set_application_name(_("Astrognome"));

    app = g_object_new(AG_TYPE_APP,
                       "application-id",   "eu.polonkai.gergely.Astrognome",
                       "flags",            G_APPLICATION_HANDLES_OPEN,
                       "register-session", TRUE,
                       NULL);
    g_signal_connect(
            app,
            "activate",
            G_CALLBACK(application_activate_cb),
            NULL
        );

    return app;
}

static void
ag_app_init(AgApp *app)
{
    AgAppPrivate *priv;
    GBytes       *css_data;
    const gchar  *css_source;
    gsize        css_length;

    priv = ag_app_get_instance_private(app);
    priv->web_view_group = webkit_web_view_group_new(NULL);

    css_data = g_resources_lookup_data(
            "/eu/polonkai/gergely/Astrognome/ui/chart-default.css",
            G_RESOURCE_LOOKUP_FLAGS_NONE,
            NULL
        );

    if ((css_source = g_bytes_get_data(css_data, &css_length)) != NULL) {
          webkit_web_view_group_add_user_style_sheet(
                priv->web_view_group,
                css_source,
                NULL,
                NULL,
                NULL,
                WEBKIT_INJECTED_CONTENT_FRAMES_TOP_ONLY
            );
    }

    g_bytes_unref(css_data);
}

static void
ag_app_class_init(AgAppClass *klass)
{
    GApplicationClass *application_class = G_APPLICATION_CLASS(klass);

    application_class->startup = startup;
    application_class->open    = ag_app_open;
}

void
ag_app_message_dialog(GtkWidget      *window,
                      GtkMessageType message_type,
                      gchar          *fmt, ...)
{
    gchar     *msg;
    va_list   args;
    GtkWidget *dialog;

    va_start(args, fmt);
    msg = g_strdup_vprintf(fmt, args);
    va_end(args);

    dialog = gtk_message_dialog_new(
            GTK_WINDOW(window),
            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
            message_type,
            GTK_BUTTONS_OK,
            "%s",
            msg
        );
    g_free(msg);
    gtk_dialog_run(GTK_DIALOG(dialog));
    gtk_widget_destroy(dialog);
}