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libraries/cms/form/field/media.php
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239
libraries/cms/form/field/media.php
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<?php
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/**
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* @package Joomla.Libraries
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* @subpackage Form
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* Form Field class for the Joomla Platform.
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* Provides a modal media selector including upload mechanism
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*
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* @package Joomla.Libraries
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* @subpackage Form
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* @since 1.6
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*/
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class JFormFieldMedia extends JFormField
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{
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/**
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* The form field type.
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*
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* @var string
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* @since 1.6
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*/
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protected $type = 'Media';
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/**
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* The initialised state of the document object.
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*
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* @var boolean
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* @since 1.6
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*/
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protected static $initialised = false;
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/**
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* Method to get the field input markup for a media selector.
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* Use attributes to identify specific created_by and asset_id fields
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*
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* @return string The field input markup.
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*
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* @since 1.6
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*/
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protected function getInput()
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{
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$assetField = $this->element['asset_field'] ? (string) $this->element['asset_field'] : 'asset_id';
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$authorField = $this->element['created_by_field'] ? (string) $this->element['created_by_field'] : 'created_by';
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$asset = $this->form->getValue($assetField) ? $this->form->getValue($assetField) : (string) $this->element['asset_id'];
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if ($asset == '')
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{
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$asset = JFactory::getApplication()->input->get('option');
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}
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$link = (string) $this->element['link'];
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if (!self::$initialised)
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{
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// Load the modal behavior script.
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JHtml::_('behavior.modal');
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// Build the script.
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$script = array();
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$script[] = ' function jInsertFieldValue(value, id) {';
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$script[] = ' var old_value = document.id(id).value;';
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$script[] = ' if (old_value != value) {';
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$script[] = ' var elem = document.id(id);';
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$script[] = ' elem.value = value;';
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$script[] = ' elem.fireEvent("change");';
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$script[] = ' if (typeof(elem.onchange) === "function") {';
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$script[] = ' elem.onchange();';
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$script[] = ' }';
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$script[] = ' jMediaRefreshPreview(id);';
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$script[] = ' }';
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$script[] = ' }';
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$script[] = ' function jMediaRefreshPreview(id) {';
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$script[] = ' var value = document.id(id).value;';
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$script[] = ' var img = document.id(id + "_preview");';
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$script[] = ' if (img) {';
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$script[] = ' if (value) {';
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$script[] = ' img.src = "' . JUri::root() . '" + value;';
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$script[] = ' document.id(id + "_preview_empty").setStyle("display", "none");';
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$script[] = ' document.id(id + "_preview_img").setStyle("display", "");';
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$script[] = ' } else { ';
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$script[] = ' img.src = ""';
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$script[] = ' document.id(id + "_preview_empty").setStyle("display", "");';
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$script[] = ' document.id(id + "_preview_img").setStyle("display", "none");';
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$script[] = ' } ';
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$script[] = ' } ';
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$script[] = ' }';
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$script[] = ' function jMediaRefreshPreviewTip(tip)';
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$script[] = ' {';
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$script[] = ' var img = tip.getElement("img.media-preview");';
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$script[] = ' tip.getElement("div.tip").setStyle("max-width", "none");';
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$script[] = ' var id = img.getProperty("id");';
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$script[] = ' id = id.substring(0, id.length - "_preview".length);';
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$script[] = ' jMediaRefreshPreview(id);';
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$script[] = ' tip.setStyle("display", "block");';
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$script[] = ' }';
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// Add the script to the document head.
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JFactory::getDocument()->addScriptDeclaration(implode("\n", $script));
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self::$initialised = true;
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}
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$html = array();
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$attr = '';
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// Initialize some field attributes.
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$attr .= $this->element['class'] ? ' class="' . (string) $this->element['class'] . '"' : '';
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$attr .= $this->element['size'] ? ' size="' . (int) $this->element['size'] . '"' : '';
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// Initialize JavaScript field attributes.
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$attr .= $this->element['onchange'] ? ' onchange="' . (string) $this->element['onchange'] . '"' : '';
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// The text field.
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$html[] = '<div class="input-prepend input-append">';
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// The Preview.
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$preview = (string) $this->element['preview'];
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$showPreview = true;
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$showAsTooltip = false;
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switch ($preview)
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{
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case 'no': // Deprecated parameter value
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case 'false':
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case 'none':
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$showPreview = false;
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break;
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case 'yes': // Deprecated parameter value
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case 'true':
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case 'show':
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break;
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case 'tooltip':
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default:
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$showAsTooltip = true;
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$options = array(
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'onShow' => 'jMediaRefreshPreviewTip',
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);
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JHtml::_('behavior.tooltip', '.hasTipPreview', $options);
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break;
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}
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if ($showPreview)
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{
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if ($this->value && file_exists(JPATH_ROOT . '/' . $this->value))
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{
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$src = JUri::root() . $this->value;
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}
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else
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{
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$src = '';
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}
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$width = isset($this->element['preview_width']) ? (int) $this->element['preview_width'] : 300;
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$height = isset($this->element['preview_height']) ? (int) $this->element['preview_height'] : 200;
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$style = '';
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$style .= ($width > 0) ? 'max-width:' . $width . 'px;' : '';
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$style .= ($height > 0) ? 'max-height:' . $height . 'px;' : '';
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$imgattr = array(
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'id' => $this->id . '_preview',
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'class' => 'media-preview',
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'style' => $style,
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);
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$img = JHtml::image($src, JText::_('JLIB_FORM_MEDIA_PREVIEW_ALT'), $imgattr);
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$previewImg = '<div id="' . $this->id . '_preview_img"' . ($src ? '' : ' style="display:none"') . '>' . $img . '</div>';
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$previewImgEmpty = '<div id="' . $this->id . '_preview_empty"' . ($src ? ' style="display:none"' : '') . '>'
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. JText::_('JLIB_FORM_MEDIA_PREVIEW_EMPTY') . '</div>';
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if ($showAsTooltip)
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{
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$html[] = '<div class="media-preview add-on">';
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$tooltip = $previewImgEmpty . $previewImg;
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$options = array(
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'title' => JText::_('JLIB_FORM_MEDIA_PREVIEW_SELECTED_IMAGE'),
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'text' => '<i class="icon-eye"></i>',
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'class' => 'hasTipPreview'
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);
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$html[] = JHtml::tooltip($tooltip, $options);
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$html[] = '</div>';
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}
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else
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{
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$html[] = '<div class="media-preview add-on" style="height:auto">';
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$html[] = ' ' . $previewImgEmpty;
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$html[] = ' ' . $previewImg;
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$html[] = '</div>';
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}
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}
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$html[] = ' <input type="text" class="input-small" name="' . $this->name . '" id="' . $this->id . '" value="'
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. htmlspecialchars($this->value, ENT_COMPAT, 'UTF-8') . '" readonly="readonly"' . $attr . ' />';
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$directory = (string) $this->element['directory'];
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if ($this->value && file_exists(JPATH_ROOT . '/' . $this->value))
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{
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$folder = explode('/', $this->value);
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$folder = array_diff_assoc($folder, explode('/', JComponentHelper::getParams('com_media')->get('image_path', 'images')));
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array_pop($folder);
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$folder = implode('/', $folder);
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}
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elseif (file_exists(JPATH_ROOT . '/' . JComponentHelper::getParams('com_media')->get('image_path', 'images') . '/' . $directory))
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{
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$folder = $directory;
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}
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else
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{
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$folder = '';
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}
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// The button.
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if ($this->element['disabled'] != true)
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{
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JHtml::_('bootstrap.tooltip');
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$html[] = '<a class="modal btn" title="' . JText::_('JLIB_FORM_BUTTON_SELECT') . '" href="'
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. ($this->element['readonly'] ? ''
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: ($link ? $link
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: 'index.php?option=com_media&view=images&tmpl=component&asset=' . $asset . '&author='
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. $this->form->getValue($authorField)) . '&fieldid=' . $this->id . '&folder=' . $folder) . '"'
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. ' rel="{handler: \'iframe\', size: {x: 800, y: 500}}">';
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$html[] = JText::_('JLIB_FORM_BUTTON_SELECT') . '</a><a class="btn hasTooltip" title="' . JText::_('JLIB_FORM_BUTTON_CLEAR') . '" href="#" onclick="';
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$html[] = 'jInsertFieldValue(\'\', \'' . $this->id . '\');';
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$html[] = 'return false;';
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$html[] = '">';
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$html[] = '<i class="icon-remove"></i></a>';
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}
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$html[] = '</div>';
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return implode("\n", $html);
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}
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}
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