kartik\tree\TreeView::renderTree PHP Méthode

    public function renderTree()
    {
        $struct = $this->_module->treeStructure + $this->_module->dataStructure;
        extract($struct);
        $nodeDepth = $currDepth = $counter = 0;
        $out = Html::beginTag('ul', ['class' => 'kv-tree']) . "\n";
        foreach ($this->_nodes as $node) {
            /**
             * @var Tree $node
             */
            if (!$this->isAdmin && !$node->isVisible() || !$this->showInactive && !$node->isActive()) {
                continue;
            }
            /** @noinspection PhpUndefinedVariableInspection */
            $nodeDepth = $node->{$depthAttribute};
            /** @noinspection PhpUndefinedVariableInspection */
            $nodeLeft = $node->{$leftAttribute};
            /** @noinspection PhpUndefinedVariableInspection */
            $nodeRight = $node->{$rightAttribute};
            /** @noinspection PhpUndefinedVariableInspection */
            $nodeKey = $node->{$keyAttribute};
            /** @noinspection PhpUndefinedVariableInspection */
            $nodeName = $node->{$nameAttribute};
            /** @noinspection PhpUndefinedVariableInspection */
            $nodeIcon = $node->{$iconAttribute};
            /** @noinspection PhpUndefinedVariableInspection */
            $nodeIconType = $node->{$iconTypeAttribute};
            $isChild = $nodeRight == $nodeLeft + 1;
            $indicators = '';
            $css = '';
            if (isset($this->nodeLabel)) {
                $label = $this->nodeLabel;
                $nodeName = is_callable($label) ? $label($node) : (is_array($label) ? ArrayHelper::getValue($label, $nodeKey, $nodeName) : $nodeName);
            }
            if ($nodeDepth == $currDepth) {
                if ($counter > 0) {
                    $out .= "</li>\n";
                }
            } elseif ($nodeDepth > $currDepth) {
                $out .= Html::beginTag('ul') . "\n";
                $currDepth = $currDepth + ($nodeDepth - $currDepth);
            } elseif ($nodeDepth < $currDepth) {
                $out .= str_repeat("</li>\n</ul>", $currDepth - $nodeDepth) . "</li>\n";
                $currDepth = $currDepth - ($currDepth - $nodeDepth);
            }
            if (trim($indicators) == null) {
                $indicators = '&nbsp;';
            }
            $nodeOptions = ['data-key' => $nodeKey, 'data-lft' => $nodeLeft, 'data-rgt' => $nodeRight, 'data-lvl' => $nodeDepth, 'data-readonly' => static::parseBool($node->isReadonly()), 'data-movable-u' => static::parseBool($node->isMovable('u')), 'data-movable-d' => static::parseBool($node->isMovable('d')), 'data-movable-l' => static::parseBool($node->isMovable('l')), 'data-movable-r' => static::parseBool($node->isMovable('r')), 'data-removable' => static::parseBool($node->isRemovable()), 'data-removable-all' => static::parseBool($node->isRemovableAll())];
            if (!$isChild) {
                $css = ' kv-parent ';
            }
            if (!$node->isVisible() && $this->isAdmin) {
                $css .= ' kv-invisible';
            }
            if ($this->showCheckbox && $node->isSelected()) {
                $css .= ' kv-selected ';
            }
            if ($node->isCollapsed()) {
                $css .= ' kv-collapsed ';
            }
            if ($node->isDisabled()) {
                $css .= ' kv-disabled ';
            }
            if (!$node->isActive()) {
                $css .= ' kv-inactive ';
            }
            $indicators .= $this->renderToggleIconContainer(false) . "\n";
            $indicators .= $this->showCheckbox ? $this->renderCheckboxIconContainer(false) . "\n" : '';
            $css = trim($css);
            if (!empty($css)) {
                Html::addCssClass($nodeOptions, $css);
            }
            $out .= Html::beginTag('li', $nodeOptions) . "\n" . Html::beginTag('div', ['tabindex' => -1, 'class' => 'kv-tree-list']) . "\n" . Html::beginTag('div', ['class' => 'kv-node-indicators']) . "\n" . $indicators . "\n" . '</div>' . "\n" . Html::beginTag('div', ['tabindex' => -1, 'class' => 'kv-node-detail']) . "\n" . $this->renderNodeIcon($nodeIcon, $nodeIconType, $isChild) . "\n" . Html::tag('span', $nodeName, ['class' => 'kv-node-label']) . "\n" . '</div>' . "\n" . '</div>' . "\n";
            ++$counter;
        }
        $out .= str_repeat("</li>\n</ul>", $nodeDepth) . "</li>\n";
        $out .= "</ul>\n";
        return Html::tag('div', $this->renderRoot() . $out, $this->treeOptions);
    }