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<?php
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/**
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* Implements hook_form_system_theme_settings_alter().
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*
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* @param $form
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* Nested array of form elements that comprise the form.
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* @param $form_state
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* A keyed array containing the current state of the form.
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*/
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function zen_dataportal_form_system_theme_settings_alter(&$form, &$form_state, $form_id = NULL) {
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// Work-around for a core bug affecting admin themes. See issue #943212.
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if (isset($form_id)) {
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return;
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}
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// Create the form using Forms API: http://api.drupal.org/api/7
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$which_image = "banner";
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$form['zen_dataportal'] = array(
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'#type' => 'fieldset',
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'#title' => t($which_image) . ' ' . t('image settings'),
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'#description' => t('If toggled on, the following image will be displayed.'),
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'#attributes' => array('class' => array('theme-settings-bottom')),
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);
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$form['zen_dataportal']['default_' . $which_image] = array(
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'#type' => 'checkbox',
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'#title' => t('Use the default') . t($which_image),
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'#default_value' => theme_get_setting('default_' . $which_image),
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'#tree' => FALSE,
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'#description' => t('Check here if you want the theme to use the image supplied with it.')
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);
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$form['zen_dataportal']['settings'] = array(
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'#type' => 'container',
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'#states' => array(
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// Hide the logo settings when using the default logo.
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'invisible' => array(
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'input[name="default_' . $which_image . '"]' => array('checked' => TRUE),
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),
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),
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);
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// If $path is a public:// URI, display the path relative to the files
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// directory; stream wrappers are not end-user friendly.
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$path = theme_get_setting($which_image . '_path');
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$image = '';
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if (file_uri_scheme($path) == 'public') {
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$url = file_create_url($path);
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$path = file_uri_target($path);
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$form['zen_dataportal']['settings'][$which_image . '_preview'] = array(
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'#type' => 'item',
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'#title' => t('Preview'),
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'#markup' => '<div class="image-preview"><img src="' . $url . '"/></div>',
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);
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}
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$form['zen_dataportal']['settings'][$which_image . '_path'] = array(
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'#type' => 'textfield',
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'#title' => t('Path to custom') . ' ' . t($which_image),
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'#description' => t('The path to the file you would like to use as your') . ' ' . t($which_image),
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'#default_value' => $path,
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);
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$form['zen_dataportal']['settings'][$which_image . '_upload'] = array(
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'#type' => 'file',
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'#title' => t('Upload') . ' ' . t($which_image),
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'#maxlength' => 40,
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'#description' => t("If you don't have direct file access to the server, use this field to upload your image.")
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);
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$form['#validate'][] = 'zen_dataportal_theme_settings_validate';
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$form['#submit'][] = 'zen_dataportal_theme_settings_submit';
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// We are editing the $form in place, so we don't need to return anything.
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}
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/**
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* Process zen_dataportal admin form submissions.
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*/
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function zen_dataportal_theme_settings_submit($form, &$form_state) {
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$values = &$form_state['values'];
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// If the user uploaded a new image, save it to a permanent location
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// and use it in place of the default theme-provided file.
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$which_image = "banner";
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if ($file = $values[$which_image . '_upload']) {
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unset($values[$which_image . '_upload']);
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$filename = file_unmanaged_copy($file->uri);
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$values['default_' .$which_image ] = 0;
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$values[$which_image . '_path'] = $filename;
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$values['toggle_' . $which_image] = 1;
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}
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if (!empty($values[$which_image . '_path'])) {
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$values[$which_image . '_path'] = _system_theme_settings_validate_path($values[$which_image . '_path']);
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}
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/*
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* Ok, we are done here the $values will be saved in the theme
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* variable by system_theme_settings_submit($form, &$form_state)
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*/
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}
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/**
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* Validator for the system_theme_settings() form.
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*/
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function zen_dataportal_theme_settings_validate($form, &$form_state) {
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$validators = array('file_validate_is_image' => array());
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$which_image = "banner";
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// Check for a new uploaded logo.
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$file = file_save_upload($which_image . '_upload', $validators);
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if (isset($file)) {
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// File upload was attempted.
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if ($file) {
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// Put the temporary file in form_values so we can save it on submit.
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$form_state['values'][$which_image . '_upload'] = $file;
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}
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else {
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// File upload failed.
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form_set_error($which_image . '_upload', t('The image could not be uploaded.'));
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}
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}
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}
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