astrognome/src/ag-app.c

417 lines
11 KiB
C

#include <glib/gi18n.h>
#include <libxml/parser.h>
#include <libxml/xpath.h>
#include <errno.h>
#include "ag-app.h"
#include "ag-window.h"
#include "config.h"
#include "astrognome.h"
typedef enum {
XML_CONVERT_STRING,
XML_CONVERT_DOUBLE,
XML_CONVERT_INT
} XmlConvertType;
struct _AgAppPrivate {
};
G_DEFINE_TYPE(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;
window = ag_window_new(app);
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)
{
//ag_preferences_show_dialog();
}
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));
}
}
GVariant *
get_by_xpath(xmlXPathContextPtr ctx, const gchar *xpath, XmlConvertType type)
{
xmlXPathObjectPtr xpathObj;
const gchar *text;
char *endptr;
GVariant *ret = NULL;
gdouble d;
gint i;
if ((xpathObj = xmlXPathEvalExpression((const xmlChar *)xpath, ctx)) == NULL) {
// TODO: Warn with a popup or similar way
g_warning("Could not initialize XPath");
return NULL;
}
if (xpathObj->nodesetval == NULL) {
// TODO: Warn with a popup or similar way
g_warning("Required element not found. This is not a valid save file!");
xmlXPathFreeObject(xpathObj);
return NULL;
}
if (xpathObj->nodesetval->nodeNr > 1) {
// TODO: Warn with a popup or similar way
g_warning("Too many elements. This is not a valid save file!");
xmlXPathFreeObject(xpathObj);
return NULL;
}
text = (const gchar *)xpathObj->nodesetval->nodeTab[0]->content;
switch (type) {
case XML_CONVERT_STRING:
ret = g_variant_new_string(text);
break;
case XML_CONVERT_DOUBLE:
d = g_ascii_strtod(text, &endptr);
if ((*endptr != 0) || (errno != 0)) {
ret = NULL;
} else {
ret = g_variant_new_double(d);
}
break;
case XML_CONVERT_INT:
i = strtol(text, &endptr, 10);
if ((*endptr != 0) || (errno != 0)) {
ret = NULL;
} else {
ret = g_variant_new_int32(i);
}
break;
}
xmlXPathFreeObject(xpathObj);
return ret;
}
static void
ag_app_open_chart(AgApp *app, GFile *file)
{
GError *err = NULL;
gchar *uri,
*xml;
guint length;
xmlDocPtr doc;
xmlXPathContextPtr xpathCtx;
GVariant *chart_name,
*country,
*city,
*longitude,
*latitude,
*altitude,
*year,
*month,
*day,
*hour,
*minute,
*second;
uri = g_file_get_uri(file);
if (!g_file_load_contents(file, NULL, &xml, &length, NULL, &err)) {
// TODO: Warn with a popup or similar way
g_warning("Could not open file '%s': %s", uri, err->message);
g_clear_error(&err);
g_free(uri);
return;
}
if ((doc = xmlReadMemory(xml, length, "chart.xml", NULL, 0)) == NULL) {
// TODO: Warn with a popup or similar way
g_warning("Saved chart is corrupt (or not a saved chart at all)");
g_free(uri);
return;
}
if ((xpathCtx = xmlXPathNewContext(doc)) == NULL) {
// TODO: Warn with a popup or similar way
g_warning("Could not initialize XPath");
xmlFreeDoc(doc);
g_free(uri);
return;
}
chart_name = get_by_xpath(xpathCtx, "/chartinfo/data/name/text()", XML_CONVERT_STRING);
country = get_by_xpath(xpathCtx, "/chartinfo/data/place/country/text()", XML_CONVERT_STRING);
city = get_by_xpath(xpathCtx, "/chartinfo/data/place/city/text()", XML_CONVERT_STRING);
longitude = get_by_xpath(xpathCtx, "/chartinfo/data/place/longitude/text()", XML_CONVERT_DOUBLE);
latitude = get_by_xpath(xpathCtx, "/chartinfo/data/place/latitude/text()", XML_CONVERT_DOUBLE);
altitude = get_by_xpath(xpathCtx, "/chartinfo/data/place/altitude/text()", XML_CONVERT_DOUBLE);
year = get_by_xpath(xpathCtx, "/chartinfo/data/time/year/text()", XML_CONVERT_INT);
month = get_by_xpath(xpathCtx, "/chartinfo/data/time/month/text()", XML_CONVERT_INT);
day = get_by_xpath(xpathCtx, "/chartinfo/data/time/day/text()", XML_CONVERT_INT);
hour = get_by_xpath(xpathCtx, "/chartinfo/data/time/hour/text()", XML_CONVERT_INT);
minute = get_by_xpath(xpathCtx, "/chartinfo/data/time/minute/text()", XML_CONVERT_INT);
second = get_by_xpath(xpathCtx, "/chartinfo/data/time/second/text()", XML_CONVERT_INT);
g_variant_unref(chart_name);
g_variant_unref(country);
g_variant_unref(city);
g_variant_unref(longitude);
g_variant_unref(latitude);
g_variant_unref(altitude);
g_variant_unref(year);
g_variant_unref(month);
g_variant_unref(day);
g_variant_unref(hour);
g_variant_unref(minute);
g_variant_unref(second);
g_free(uri);
xmlXPathFreeContext(xpathCtx);
xmlFreeDoc(doc);
}
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,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_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 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 },
};
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), "F10", "win.gear-menu", NULL);
}
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/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]);
}
}
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);
return app;
}
static void
ag_app_init(AgApp *app)
{
}
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;
}