/**
* Notify observers with some values.
* @param string $value
*/
function notify($value)
{
// only notify in development environment...
if (Fari_ApplicationEnvironment::isDevelopment()) {
// save the info
$this->value = $value;
// notify each of our observers
foreach ($this->observers as $observer) {
$observer->update($this);
}
}
}
/**
* Include layout file and view file included in $template var.
* @param string $layout file path
* @param string $view file path
*/
private function includeLayoutAndView($layout, $view)
{
// we are defining our own var $template so check if exists
assert('!array_key_exists(\'template\', $this->values);
// $template variable will be overwritten, do not use it');
// import key:value array into symbol table
extract($this->values, EXTR_SKIP);
// display paths to files in development mode
$devMode = Fari_ApplicationEnvironment::isDevelopment();
ob_start();
// save view into template var
if ($devMode) {
echo "\n<!-- begin {$view} -->\n";
}
include $view;
if ($devMode) {
echo "\n<!-- end {$view} -->\n";
}
$template = ob_get_contents();
ob_end_clean();
// call parent layout
if ($devMode) {
echo "<!-- begin {$layout} -->\n";
}
include $layout;
if ($devMode) {
echo "\n<!-- end {$layout} -->\n";
}
}
/**
* Generates a link to an image with alt in /public.
* @example <img alt="Bg" src="/images/bg.jpg?1213337144" />
* @param string $img path
*/
function imageTag($img)
{
// preconditions
assert('!empty($img); // image file not defined');
assert('is_string($img); // pass filename as a string');
// trim whitespace
$img = trim($img);
// prepend slash?
if (substr($img, 0, 1) !== '/') {
$img = "/{$img}";
}
// determine file so we can generate alt tag
$file = ucfirst(str_replace("-", " ", current(explode('.', end(explode('/', $img))))));
// append timestamp only in dev environment
$mktime = Fari_ApplicationEnvironment::isDevelopment() ? '?' . mktime() : '';
// echo with trailing timestamp
echo "<img alt=\"{$file}\" src=\"" . WWW_DIR . "/public{$img}" . $mktime . '" />';
}
