285 lines
8.7 KiB
PHP
285 lines
8.7 KiB
PHP
<?php
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// Chaque type d'élément est une sous-classe de ElementDocument, et impléménte uniquement les méthodes de création qui respectent les règles d'imbrication des éléments.
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// Pour les éléments dont les enfants possibles dépendent du parent (par ex. <a>), on restreindra les enfants et (parents) possibles à quelque chose de sensé.
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// Plutôt que d'avoir plein de sous-classes, ElementDocument a une méthode __call(), qui vérifie ce qu'on peut appeller en fonction du type de l'élément.
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// Propriété "url" pour le document ? Probablement innutile, pusiqu'on bosse principalement avec des uid (le href d'un <a> est un uid).
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class ElementDocument {
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public $espaceCss = null;
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private static $types = array();
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private static $widgets = array();
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private $type = null;
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private $enfants = array();
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private $attr = array();
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protected $document = null;
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public static function add_type($singleton, $type, $typesEnfants = "", $attributs_oblig = "", $attributs_opt = "") {
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if ($singleton !== true && $singleton !== false) {
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$attributs_opt = $attributs_oblig;
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$attributs_oblig = $typesEnfants;
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$typesEnfants = $type;
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$type = $singleton;
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$singleton = false;
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}
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self::$types[$type] = array(
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"singleton" => $singleton,
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"enfants" => qw($typesEnfants),
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"attributs_oblig" => qw($attributs_oblig),
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"attributs_opt" => qw($attributs_opt)
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);
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}
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public static function add_widget($nom, $callback) {
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self::$widgets["w_" . $nom] = $callback;
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}
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public function type() {
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return $this->type;
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}
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/* public function inclure($elem) {
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// Tente de fusionner $elem avec $this
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// Très mauvaise fonction car l'inclusion peut planter bien après la définition des deux parties.
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niy("inclure");
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}*/
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public function attr($nom, $valeur) {
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$this->attr[$nom] = $valeur;
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}
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public function to_XHTML_5() {
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return applyXSLT($this->to_XML(), dirname(__FILE__) . "/xslt/xhtml5.xsl");
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}
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public function to_XML($indent = "") {
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if ($this->type == "litteral") {
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return $this->attr['valeur'];
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}
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$ret = "";
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$ret .= "$indent<" . $this->type;
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foreach ($this->attr as $k => $v) {
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$ret .= " " . htmlspecialchars($k) . '="' . htmlspecialchars($v) . '"';
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}
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if (count($this->enfants) == 0) {
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$ret .= "/>\n";
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} else {
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$ret .= ">\n";
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foreach ($this->enfants as $k => $v) {
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$ret .= $v->to_XML($indent . " ");
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}
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$ret .= "$indent</" . $this->type . ">\n";
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}
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return $ret;
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}
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public function to_HTML_5() {
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niy("to_HTML_5");
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}
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public function to_HTML_4_01() {
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niy("to_HTML_4_01");
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}
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public function to_XHTML_1_1() {
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niy("to_XHTML_1_1");
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}
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public function __construct($type = "document", &$doc = null) {
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$this->type = $type;
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$this->document = $doc;
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}
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public static function has_widget($w) {
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return array_key_exists($w, self::$widgets);
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}
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public function type_autorisé($t) {
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return array_key_exists($t, self::$types) && in_array($t, self::$types[$this->type]["enfants"]);
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}
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public function singleton_élément($type, $args) {
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if (!array_key_exists($type, $this->document->singletons)) {
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$this->document->singletons[$type] = $this->créer_élément($type, $args);
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}
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return $this->document->singletons[$type];
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}
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public function créer_élément($type, $args) {
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$elem = new self($type, $this->document);
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$max = 0;
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foreach (self::$types[$type]["attributs_oblig"] as $i => $nom) {
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if (!isset($args[$i])) {
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Debug("erreur", "Argument manquant : $nom pour " . $elem->type);
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}
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$elem->attr($nom, $args[$i]);
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$max = $i;
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}
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foreach (self::$types[$type]["attributs_opt"] as $i => $nom) {
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if (isset($args[$i])) {
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$elem->attr($nom, $args[$i]);
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}
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}
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$this->enfants[] = $elem;
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return $elem;
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}
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public function créer_widget($nom, $args) {
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$f = self::$widgets[$nom];
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array_unshift($args, $this);
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return call_user_func_array($f, $args);
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}
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public function __call($fn, $args) {
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if (self::type_autorisé($fn)) {
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if (self::$types[$fn]["singleton"])
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return $this->singleton_élément($fn, $args);
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else
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return $this->créer_élément($fn, $args);
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} elseif (self::has_widget($fn)) {
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return $this->créer_widget($fn, $args);
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} else {
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Debug("erreur", "Impossible d'ajouter un élément $fn à " . $this->type);
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return null;
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}
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}
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}
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class Document extends ElementDocument {
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protected $singletons = array();
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public function __construct() {
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parent::__construct("document", $this);
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$this->erreurs();
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$this->header();
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$this->nav();
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$this->article();
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$this->footer();
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}
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}
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$inline_elems = "span text a strong em img";
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ElementDocument::add_type("document", "erreurs header footer nav article script style");
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ElementDocument::add_type(true, "header", "title");
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ElementDocument::add_type(true, "erreurs", "litteral");
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ElementDocument::add_type("title", "text");
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ElementDocument::add_type("litteral", "", "valeur");
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ElementDocument::add_type(true, "footer", "");
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ElementDocument::add_type(true, "nav", "ul");
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ElementDocument::add_type(true, "article", "ul hX table p form span"); // span ?
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ElementDocument::add_type("hX", $inline_elems);
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ElementDocument::add_type("script", "", "src");
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ElementDocument::add_type("style", "", "src");
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ElementDocument::add_type("ul", "li");
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ElementDocument::add_type("table", "thead tbody tfoot");
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ElementDocument::add_type("tbody", "tr");
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ElementDocument::add_type("tr", "td th");
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ElementDocument::add_type("td", $inline_elems, "", "colspan rowspan");
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ElementDocument::add_type("th", $inline_elems);
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ElementDocument::add_type("li", $inline_elems);
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ElementDocument::add_type("form", "input_text_line input_text_multi input_text_rich input_file");
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ElementDocument::add_type("a", $inline_elems, "href");
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ElementDocument::add_type("span", $inline_elems, "", "class");
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ElementDocument::add_type("img", "", "alt src");
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ElementDocument::add_type("p", $inline_elems);
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ElementDocument::add_type("text", "", "text");
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ElementDocument::add_widget("titre", create_function('$d, $cell', '
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// renvoie un <h2> ou un <input> selon les droits
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$d->header()->title()->text(toString($cell));
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// TODO : modification si on a les droits.
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$d->article()->hX()->text(toString($cell));
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'));
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ElementDocument::add_widget("en_tete", create_function('$d, $cell_titre, $cell_description', '
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$d->w_titre($cell_titre);
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$d->w_description($cell_description);
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'));
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ElementDocument::add_widget("description", create_function('$d, $cell', '
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// TODO : modification si on a les droits.
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return $d->article()->p()->text(toString($cell));
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'));
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ElementDocument::add_widget("field", create_function('$d, $cell', '
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$f = $d->span("field");
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$f->text("NIY : " . toString($cell));
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return $f;
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'));
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ElementDocument::add_widget("text_line", create_function('$d, $cell', '
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// TODO : modification si on a les droits.
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return $d->text(toString($cell));
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'));
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ElementDocument::add_widget("text_nix", create_function('$d, $cell', '
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// Texte naze (sans espaces etc.) à la *nix.
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// TODO : modification si on a les droits.
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// TODO : vérifier que ça match [a-zA-Z][-a-zA-Z0-9_]*
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return $d->text(toString($cell));
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'));
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ElementDocument::add_widget("text_rich", create_function('$d, $cell', '
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// TODO : modification si on a les droits.
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// TODO : rendu du texte riche.
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return $d->p()->text(toString($cell));
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'));
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ElementDocument::add_widget("bool", create_function('$d, $cell', '
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// checkbox
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return $d->text("Not Implemented Yet : w_bool($cell)");
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'));
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ElementDocument::add_widget("bouton", create_function('$d, $texte, $page_callback, $ressource_callback, $action_callback', '
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// afficher un input[type=button]
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// lors du clic, appeller $action_callback sur $page_callback/?res=$ressource_callback ?
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return $d->text("Not Implemented Yet : w_bouton($texte, $page_callback, $ressource_callback, $action_callback)");
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'));
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// Le widget w_img_file doit gérer le stockage de l'image dans un dossier,
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// la création de la miniature et le stockage dans la BDD du chemin vers l'image.
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ElementDocument::add_widget("img_file", create_function('$d, $cell_description, $cell_img', '
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// TODO : modification si on a les droits.
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// input[file] et <img>
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$img = $d->img(toString($cell_description), toString($cell_img));
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$d->w_description($cell_description);
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return $img;
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'));
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ElementDocument::add_widget("date", create_function('$d, $select', '
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// affichage localisé.
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return $d->text("Not Implemented Yet : date($select)");
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'));
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ElementDocument::add_widget("liste", create_function('$d, $list_cells, $function_formattage_elements', '
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$ul = $d->ul();
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foreach ($list_cells as $cell) {
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$li = $ul->li();
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$function_formattage_elements($cell, $li);
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}
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return $ul;
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'));
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ElementDocument::add_widget("tableau", create_function('$d, $select, $function_formattage_elements', '
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$t = $d->table();
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$tr = $t->tbody()->tr();
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$tr->td()->text("Not Implemented Yet");
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return $t;
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'));
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?>
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