95 lines
1.8 KiB
PHP
95 lines
1.8 KiB
PHP
<?php
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/*
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* Event:
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* generic parent class
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*/
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abstract class Event {
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var $context;
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public function __construct(RequestContext $context) {
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$this->context = $context;
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}
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}
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/*
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* InitExtEvent:
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* A wake-up call for extensions
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*/
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class InitExtEvent extends Event {}
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/*
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* PageRequestEvent:
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* User requests /view/42 -> an event is generated with $args = array("view",
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* "42"); when an event handler asks $event->page_matches("view"), it returns
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* true and ignores the matched part, such that $event->count_args() = 1 and
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* $event->get_arg(0) = "42"
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*/
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class PageRequestEvent extends Event {
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var $args;
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var $arg_count;
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var $part_count;
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public function __construct(RequestContext $context, $args) {
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parent::__construct($context);
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$this->args = $args;
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$this->arg_count = count($args);
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$this->page = $context->page;
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$this->user = $context->user;
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}
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public function page_matches($name) {
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$parts = explode("/", $name);
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$this->part_count = count($parts);
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if($this->part_count > $this->arg_count) {
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return false;
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}
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for($i=0; $i<$this->part_count; $i++) {
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if($parts[$i] != $this->args[$i]) {
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return false;
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}
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}
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return true;
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}
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public function get_arg($n) {
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$offset = $this->part_count + $n;
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if($offset >= 0 && $offset < $this->arg_count) {
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return $this->args[$offset];
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}
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else {
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return null;
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}
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}
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public function count_args() {
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return $this->arg_count - $this->part_count;
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}
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}
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/*
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* TextFormattingEvent:
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* $original - for reference
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* $formatted - with formatting applied
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* $stripped - with formatting removed
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*/
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class TextFormattingEvent extends Event {
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var $original;
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var $formatted;
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var $stripped;
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public function TextFormattingEvent($text) {
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$h_text = html_escape(trim($text));
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$this->original = $h_text;
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$this->formatted = $h_text;
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$this->stripped = $h_text;
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}
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}
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?>
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