/random_image/view
* Downloading a random image
*
Link to /random_image/download. This will give
* the raw data for an image (no HTML). This is useful so that you
* can set your desktop wallpaper to be the download URL, refreshed
* every couple of hours.
*
Getting a random image from a subset
*
Adding a slash and some search terms will get a random image
* from those results. This can be useful if you want a specific size
* of random image, or from a category. You could link to
* /random_image/download/size:1024x768+cute
*/
class RandomImage implements Extension {
var $theme;
public function receive_event(Event $event) {
if(is_null($this->theme)) $this->theme = get_theme_object($this);
if(($event instanceof PageRequestEvent) && $event->page_matches("random_image")) {
global $config;
global $database;
if($event->count_args() == 1) {
$action = $event->get_arg(0);
$search_terms = array();
}
else if($event->count_args() == 2) {
$action = $event->get_arg(0);
$search_terms = explode(' ', $event->get_arg(1));
}
$image = Image::by_random($config, $database, $search_terms);
if($event->get_arg(0) == "download") {
if(!is_null($image)) {
$event->page->set_mode("data");
$event->page->set_type("image/jpeg");
$event->page->set_data(file_get_contents($image->get_image_filename()));
}
}
if($event->get_arg(0) == "view") {
if(!is_null($image)) {
send_event(new DisplayingImageEvent($image, $event->page));
}
}
}
if(($event instanceof SetupBuildingEvent)) {
$sb = new SetupBlock("Random Image");
$sb->add_bool_option("show_random_block", "Show Random Block: ");
$event->panel->add_block($sb);
}
if($event instanceof PostListBuildingEvent) {
global $config, $database;
if($config->get_bool("show_random_block")) {
$image = Image::by_random($config, $database, $event->search_terms);
if(!is_null($image)) {
$this->theme->display_random($event->page, $image);
}
}
}
}
}
add_event_listener(new RandomImage());
?>