add af_readability
Andrew Dolgov
9 years ago
parent
a95fb1696d
commit
1ff7ae42df
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<?php
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/**
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* JavaScript-like HTML DOM Element
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*
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* This class extends PHP's DOMElement to allow
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* users to get and set the innerHTML property of
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* HTML elements in the same way it's done in
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* JavaScript.
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*
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* Example usage:
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* @code
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* require_once 'JSLikeHTMLElement.php';
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* header('Content-Type: text/plain');
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* $doc = new DOMDocument();
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* $doc->registerNodeClass('DOMElement', 'JSLikeHTMLElement');
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* $doc->loadHTML('<div><p>Para 1</p><p>Para 2</p></div>');
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* $elem = $doc->getElementsByTagName('div')->item(0);
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*
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* // print innerHTML
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* echo $elem->innerHTML; // prints '<p>Para 1</p><p>Para 2</p>'
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* echo "\n\n";
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*
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* // set innerHTML
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* $elem->innerHTML = '<a href="http://fivefilters.org">FiveFilters.org</a>';
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* echo $elem->innerHTML; // prints '<a href="http://fivefilters.org">FiveFilters.org</a>'
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* echo "\n\n";
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*
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* // print document (with our changes)
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* echo $doc->saveXML();
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* @endcode
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*
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* @author Keyvan Minoukadeh - http://www.keyvan.net - keyvan@keyvan.net
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* @see http://fivefilters.org (the project this was written for)
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*/
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class JSLikeHTMLElement extends DOMElement
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{
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/**
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* Used for setting innerHTML like it's done in JavaScript:
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* @code
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* $div->innerHTML = '<h2>Chapter 2</h2><p>The story begins...</p>';
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* @endcode
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*/
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public function __set($name, $value) {
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if ($name == 'innerHTML') {
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// first, empty the element
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for ($x=$this->childNodes->length-1; $x>=0; $x--) {
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$this->removeChild($this->childNodes->item($x));
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}
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// $value holds our new inner HTML
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if ($value != '') {
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$f = $this->ownerDocument->createDocumentFragment();
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// appendXML() expects well-formed markup (XHTML)
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$result = @$f->appendXML($value); // @ to suppress PHP warnings
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if ($result) {
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if ($f->hasChildNodes()) $this->appendChild($f);
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} else {
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// $value is probably ill-formed
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$f = new DOMDocument();
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$value = mb_convert_encoding($value, 'HTML-ENTITIES', 'UTF-8');
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// Using <htmlfragment> will generate a warning, but so will bad HTML
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// (and by this point, bad HTML is what we've got).
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// We use it (and suppress the warning) because an HTML fragment will
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// be wrapped around <html><body> tags which we don't really want to keep.
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// Note: despite the warning, if loadHTML succeeds it will return true.
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$result = @$f->loadHTML('<htmlfragment>'.$value.'</htmlfragment>');
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if ($result) {
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$import = $f->getElementsByTagName('htmlfragment')->item(0);
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foreach ($import->childNodes as $child) {
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$importedNode = $this->ownerDocument->importNode($child, true);
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$this->appendChild($importedNode);
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}
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} else {
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// oh well, we tried, we really did. :(
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// this element is now empty
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}
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}
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}
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} else {
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$trace = debug_backtrace();
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trigger_error('Undefined property via __set(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);
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}
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}
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/**
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* Used for getting innerHTML like it's done in JavaScript:
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* @code
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* $string = $div->innerHTML;
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* @endcode
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*/
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public function __get($name)
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{
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if ($name == 'innerHTML') {
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$inner = '';
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foreach ($this->childNodes as $child) {
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$inner .= $this->ownerDocument->saveXML($child);
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}
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return $inner;
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}
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$trace = debug_backtrace();
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trigger_error('Undefined property via __get(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);
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return null;
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}
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public function __toString()
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{
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return '['.$this->tagName.']';
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}
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}
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?>
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File diff suppressed because it is too large
Load Diff
@ -0,0 +1,135 @@
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<?php
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class Af_Readability extends Plugin {
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private $host;
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function about() {
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return array(1.0,
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"Try to inline article content using Readability",
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"fox");
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}
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function save() {
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//
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}
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function init($host)
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{
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$this->host = $host;
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$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
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$host->add_hook($host::HOOK_PREFS_TAB, $this);
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$host->add_hook($host::HOOK_PREFS_EDIT_FEED, $this);
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$host->add_hook($host::HOOK_PREFS_SAVE_FEED, $this);
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}
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function hook_prefs_tab($args) {
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if ($args != "prefFeeds") return;
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print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('af_readability settings')."\">";
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print_notice("Enable the plugin for specific feeds in the feed editor.");
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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if (!array($enabled_feeds)) $enabled_feeds = array();
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$enabled_feeds = $this->filter_unknown_feeds($enabled_feeds);
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$this->host->set($this, "enabled_feeds", $enabled_feeds);
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if (count($enabled_feeds) > 0) {
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print "<h3>" . __("Currently enabled for (click to edit):") . "</h3>";
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print "<ul class=\"browseFeedList\" style=\"border-width : 1px\">";
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foreach ($enabled_feeds as $f) {
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print "<li>" .
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"<img src='images/pub_set.png'
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style='vertical-align : middle'> <a href='#'
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onclick='editFeed($f)'>".
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getFeedTitle($f) . "</a></li>";
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}
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print "</ul>";
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}
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print "</div>";
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}
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function hook_prefs_edit_feed($feed_id) {
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print "<div class=\"dlgSec\">".__("Readability")."</div>";
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print "<div class=\"dlgSecCont\">";
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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if (!array($enabled_feeds)) $enabled_feeds = array();
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$key = array_search($feed_id, $enabled_feeds);
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$checked = $key !== FALSE ? "checked" : "";
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print "<hr/><input dojoType=\"dijit.form.CheckBox\" type=\"checkbox\" id=\"af_readability_enabled\"
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name=\"af_readability_enabled\"
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$checked> <label for=\"af_readability_enabled\">".__('Inline article content')."</label>";
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print "</div>";
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}
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function hook_prefs_save_feed($feed_id) {
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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if (!is_array($enabled_feeds)) $enabled_feeds = array();
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$enable = checkbox_to_sql_bool($_POST["af_readability_enabled"]) == 'true';
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$key = array_search($feed_id, $enabled_feeds);
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if ($enable) {
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if ($key === FALSE) {
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array_push($enabled_feeds, $feed_id);
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}
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} else {
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if ($key !== FALSE) {
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unset($enabled_feeds[$key]);
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}
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}
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$this->host->set($this, "enabled_feeds", $enabled_feeds);
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}
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function hook_article_filter($article) {
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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$key = array_search($article["feed"]["id"], $enabled_feeds);
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if ($key === FALSE) return $article;
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if (!class_exists("Readability")) require_once(__DIR__ . "/classes/Readability.php");
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$tmp = fetch_file_contents($article["link"]);
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if ($tmp) {
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$r = new Readability($tmp, $article["link"]);
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if ($r->init()) {
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$article["content"] = $r->articleContent->innerHTML;
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}
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}
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return $article;
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}
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function api_version() {
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return 2;
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}
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private function filter_unknown_feeds($enabled_feeds) {
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$tmp = array();
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foreach ($enabled_feeds as $feed) {
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$result = db_query("SELECT id FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
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if (db_num_rows($result) != 0) {
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array_push($tmp, $feed);
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}
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}
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return $tmp;
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}
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}
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?>
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