NS_IMETHODIMP
nsGIOMimeApp::GetCommand(nsACString& aCommand)
{
get_commandline_t g_app_info_get_commandline_ptr;
void *libHandle = dlopen("libgio-2.0.so.0", RTLD_LAZY);
if (!libHandle) {
return NS_ERROR_FAILURE;
}
dlerror(); /* clear any existing error */
g_app_info_get_commandline_ptr =
(get_commandline_t) dlsym(libHandle, "g_app_info_get_commandline");
if (dlerror() == NULL) {
const char *cmd = g_app_info_get_commandline_ptr(mApp);
if (!cmd) {
dlclose(libHandle);
return NS_ERROR_FAILURE;
}
aCommand.Assign(cmd);
}
dlclose(libHandle);
return NS_OK;
}
/**
* Create or find already existing application info for specified command
* and application name.
* @param cmd command to execute
* @param appName application name
* @param appInfo location where created GAppInfo is stored
* @return NS_OK when object is created, NS_ERROR_FAILURE otherwise.
*/
NS_IMETHODIMP
nsGIOService::CreateAppFromCommand(nsACString const& cmd,
nsACString const& appName,
nsIGIOMimeApp** appInfo)
{
GError *error = NULL;
*appInfo = nsnull;
GAppInfo *app_info = NULL, *app_info_from_list = NULL;
GList *apps = g_app_info_get_all();
GList *apps_p = apps;
get_commandline_t g_app_info_get_commandline_ptr;
void *libHandle = dlopen("libgio-2.0.so", RTLD_LAZY);
if (!libHandle) {
return NS_ERROR_FAILURE;
}
dlerror(); /* clear any existing error */
g_app_info_get_commandline_ptr =
(get_commandline_t) dlsym(libHandle, "g_app_info_get_commandline");
if (dlerror() != NULL) {
g_app_info_get_commandline_ptr = NULL;
}
// Try to find relevant and existing GAppInfo in all installed application
while (apps_p) {
app_info_from_list = (GAppInfo*) apps_p->data;
/* This is a silly test. It just compares app names but not
* commands. This is due to old version of Glib/Gio. The required
* function which allows to do a regular check of existence of desktop file
* is possible by using function g_app_info_get_commandline. This function
* has been introduced in Glib 2.20. */
if (app_info_from_list && strcmp(g_app_info_get_name(app_info_from_list),
PromiseFlatCString(appName).get()) == 0 )
{
if (g_app_info_get_commandline_ptr)
{
/* Following test is only possible with Glib >= 2.20.
* Compare path only by using strncmp */
if (strncmp(g_app_info_get_commandline_ptr(app_info_from_list),
PromiseFlatCString(cmd).get(),
strlen(PromiseFlatCString(cmd).get())) == 0)
{
app_info = app_info_from_list;
break;
} else {
g_object_unref(app_info_from_list);
}
} else {
app_info = app_info_from_list;
break;
}
} else {
g_object_unref(app_info_from_list);
}
apps_p = apps_p->next;
}
g_list_free(apps);
if (!app_info) {
app_info = g_app_info_create_from_commandline(PromiseFlatCString(cmd).get(),
PromiseFlatCString(appName).get(),
G_APP_INFO_CREATE_SUPPORTS_URIS,
&error);
}
if (!app_info) {
g_warning("Cannot create application info from command: %s", error->message);
g_error_free(error);
dlclose(libHandle);
return NS_ERROR_FAILURE;
}
nsGIOMimeApp *mozApp = new nsGIOMimeApp(app_info);
NS_ENSURE_TRUE(mozApp, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(*appInfo = mozApp);
dlclose(libHandle);
return NS_OK;
}
