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<?php
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// $Id: thumb.admin.inc,v 1.4 2008/12/10 12:07:13 davyvandenbremt Exp $
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/**
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* Menu callback - Get an overview of all presets.
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*/
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function thumb_presets_list() {
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$header = array(t('Preset'), t('Operations'));
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$rows = array();
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$presets = thumb_presets();
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foreach ($presets as $id => $preset) {
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$links = array();
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$links[] = l(t('Edit'), 'admin/build/thumb/'. $preset->pid .'/edit');
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$links[] = l(t('Delete'), 'admin/build/thumb/'. $preset->pid .'/delete');
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$links[] = l(t('Flush'), 'admin/build/thumb/'. $preset->pid .'/flush');
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$rows[] = array(
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$id,
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implode(' ', $links)
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);
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}
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if (empty($rows)) {
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$rows[] = array(array('data' => t('No presets available.'), 'colspan' => '2', 'class' => 'message'));
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}
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return theme('table', $header, $rows);
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}
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/**
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* Menu callback - Show preset form (add and delete).
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*
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* @param $preset
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* The preset to edit (if in edit mode).
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*/
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function thumb_presets_form(&$formstate, $preset = NULL) {
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$form = array();
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if ($preset) {
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$form['pid'] = array(
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'#type' => 'hidden',
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'#value' => $preset->pid
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);
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}
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/**
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* General preset info.
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*/
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$form['info'] = array(
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'#type' => 'fieldset',
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'#title' => t('Info'),
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'#collapsible' => TRUE,
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);
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$form['info']['identifier'] = array(
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'#type' => 'textfield',
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'#title' => t('Identifier'),
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'#description' => t('The title you enter here appears on the page.'),
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'#size' => 32,
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'#maxlength' => 32,
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'#required' => !$preset ? TRUE : FALSE,
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'#element_validate' => array('thumb_element_identifier_validate'),
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'#default_value' => isset($preset) ? $preset->identifier : '',
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'#disabled' => $preset ? TRUE : FALSE,
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);
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$form['info']['description'] = array(
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'#type' => 'textarea',
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'#title' => t('Description'),
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'#description' => t('The text you enter here appears on the page.'),
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'#cols' => 60,
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'#rows' => 5,
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'#default_value' => isset($preset) ? $preset->description : '',
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);
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/**
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* Preset settings.
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*/
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// size
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$form['params']['size'] = array(
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'#type' => 'fieldset',
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'#title' => t('Size'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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);
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$form['params']['size']['w'] = array(
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'#type' => 'textfield',
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'#title' => t('Maximum width'),
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'#description' => t('Maximum width of output thumbnail in pixels.'),
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'#size' => 4,
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'#maxlength' => 4,
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'#element_validate' => array('thumb_element_numeric_validate'),
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'#default_value' => isset($preset) && isset($preset->data['w']) ? $preset->data['w'] : '',
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);
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$form['params']['size']['h'] = array(
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'#type' => 'textfield',
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'#title' => t('Maximum height'),
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'#description' => t('Maximum width of output thumbnail in pixels.'),
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'#size' => 4,
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'#maxlength' => 4,
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'#element_validate' => array('thumb_element_numeric_validate'),
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'#default_value' => isset($preset) && isset($preset->data['h']) ? $preset->data['h'] : '',
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);
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$form['params']['size']['iar'] = array(
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'#type' => 'checkbox',
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'#title' => t('Ignore Aspect Ratio'),
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'#description' => t('Disable proportional resizing and stretch image to fit "Maxium height" & "Maximum width" (which must both be set). Overrides Force Aspect Ratio.'),
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'#default_value' => isset($preset) && isset($preset->data['iar']) ? $preset->data['iar'] : 0,
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);
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$form['params']['size']['far'] = array(
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'#type' => 'select',
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'#title' => t('Force Aspect Ratio'),
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'#description' => t('Image will be created at size specified by "Maximum width" and "Maximum height" (which must both be set). Use the appropriate direction if the image is landscape or portrait.'),
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'#options' => array(
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'' => '<'. t('ignore') . '>',
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'L' => t('Left'),
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'R' => t('Right'),
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'T' => t('Top'),
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'B' => t('Bottom'),
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'C' => t('Center'),
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'BL' => t('Bottom left'),
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'BR' => t('Bottom right'),
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'TL' => t('Top left'),
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'TR' => t('Top right')
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),
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'#default_value' => isset($preset) && isset($preset->data['far']) ? $preset->data['far'] : '',
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);
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// output format and quality
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$form['params']['output'] = array(
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'#type' => 'fieldset',
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'#title' => t('Output format and quality'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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'#access' => user_access('administer thumb.admin'),
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);
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$form['params']['output']['f'] = array(
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'#type' => 'select',
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'#title' => t('Format'),
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'#description' => t('Output image format.'),
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'#options' => array(-1 => t('Default'), 'jpeg' => 'jpeg', 'png' => 'png', 'gif' => 'gif'),
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'#default_value' => isset($preset) && isset($preset->data['f']) ? $preset->data['f'] : -1,
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);
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$form['params']['output']['q'] = array(
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'#type' => 'textfield',
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'#title' => t('Quality'),
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'#description' => t('JPEG compression (1=worst, 95=best, 75=default)'),
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'#size' => 2,
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'#maxlength' => 2,
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'#element_validate' => array('thumb_element_numeric_validate'),
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'#default_value' => isset($preset) && isset($preset->data['q']) ? $preset->data['q'] : '',
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);
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// color
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$form['params']['color'] = array(
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'#type' => 'fieldset',
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'#title' => t('Colors'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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);
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if (module_exists('color') && module_exists('colorpicker')) {
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$form['params']['color']['colorpicker'] = array(
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'#type' => 'colorpicker',
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'#description' => t('Use this colorpicker to easily select color codes for the fields below.'),
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);
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$form['params']['color']['bg'] = array(
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'#type' => 'colorpicker_textfield',
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'#colorpicker' => 'colorpicker',
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);
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}
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else {
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$form['params']['color']['bg'] = array(
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'#type' => 'textfield',
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);
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}
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$form['params']['color']['bg']['#title'] = t('Background color');
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$form['params']['color']['bg']['#default_value'] = isset($preset) && isset($preset->data['bg']) ? $preset->data['bg'] : '#ffffff';
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$form['params']['color']['bg']['#size'] = 8;
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$form['params']['color']['bg']['#description'] = t('Specify hex color.');
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/**
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* Buttons.
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*/
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$form['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Save'),
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);
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return $form;
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}
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/**
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* Submit handler for the preset form.
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*/
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function thumb_presets_form_submit($form, &$form_state) {
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$params = array();
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// Merging all params
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$element_groups = element_children($form['params']);
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$elements = array();
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foreach ($element_groups as $group) {
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$elements = array_merge($elements, element_children($form['params'][$group]));
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}
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// Gathering all settings in $params array.
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foreach ($elements as $element) {
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$params[$element] = $form_state['values'][$element];
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}
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// Serializing the array for storage.
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$params = serialize($params);
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// No preset id set; we're inserting a new one.
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if (!isset($form_state['values']['pid'])) {
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$sql = "INSERT INTO {thumb_preset} (identifier, description, data) VALUES ('%s', '%s', '%s')";
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db_query($sql, $form_state['values']['identifier'], $form_state['values']['description'], $params);
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drupal_set_message(t('Preset %identifier was created.', array('%identifier' => $form_state['values']['identifier'])));
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}
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// Preset id set; we're editing an existing one.
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else {
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$sql = "UPDATE {thumb_preset} SET description = '%s', data = '%s' WHERE pid = %d";
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db_query($sql, $form_state['values']['description'], $params, $form_state['values']['pid']);
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drupal_set_message(t('Preset %identifier was updated.', array('%identifier' => $form_state['values']['identifier'])));
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}
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// Redirecting to preset overview.
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$form_state['redirect'] = 'admin/build/thumb';
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}
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/**
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* Element validation handler - Validate if an element's value is a valid identifier (alphanumeric, _ and -).
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*/
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function thumb_element_identifier_validate($element, &$form_state) {
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// Check for duplicates.
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$presets = thumb_presets();
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if (in_array($element['#value'], array_keys($presets))) {
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form_set_error($element['#name'], t('The identifier you have chosen is already in use.'));
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}
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// Check for illegal characters.
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if (preg_match('/[^0-9a-zA-Z_\-]/', $element['#value'])) {
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form_set_error($element['#name'], t('Please only use alphanumic characters, underscores (_), and hyphens (-) for identifiers.'));
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}
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}
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/**
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* Element validation handler - Validate if an element's value is numeric.
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*/
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function thumb_element_numeric_validate($element, &$form_state) {
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if (!empty($element['#value']) && !is_numeric($element['#value'])) {
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form_set_error($element['#name'], t('Please specify a numeric value for !field', array('!field' => $element['#title'])));
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}
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}
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/**
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* Menu callback - Show preset delete confirmation form.
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*
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* @param $preset
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* The preset to delete.
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*/
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function thumb_delete_confirm_form(&$form_state, $preset) {
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$form['pid'] = array(
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'#type' => 'value',
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'#value' => $preset->pid,
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);
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$form['identifier'] = array(
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'#type' => 'value',
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'#value' => $preset->identifier,
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);
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return confirm_form($form,
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t('Are you sure you want to delete %identifier?', array('%identifier' => $preset->identifier)),
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isset($_GET['destination']) ? $_GET['destination'] : 'admin/build/thumb',
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t('This action cannot be undone.'),
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t('Delete'),
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t('Cancel')
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);
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}
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/**
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* Submit handler for the preset delete form.
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*/
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function thumb_delete_confirm_form_submit($form, &$form_state) {
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if ($form_state['values']['confirm']) {
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thumb_preset_flush($form_state['values']['identifier']);
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db_query("DELETE FROM {thumb_preset} WHERE pid = %d", $form_state['values']['pid']);
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}
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$form_state['redirect'] = 'admin/build/thumb';
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}
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/**
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* Menu callback - Show preset flush confirmation form.
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*
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* @param $preset
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* The preset to flush thumbnails for.
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*/
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function thumb_flush_confirm_form(&$form_state, $preset) {
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$form['identifier'] = array(
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'#type' => 'value',
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'#value' => $preset->identifier,
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);
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return confirm_form($form,
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t('Are you sure you want to flush %identifier?', array('%identifier' => $preset->identifier)),
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isset($_GET['destination']) ? $_GET['destination'] : 'admin/build/thumb',
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t('This action cannot be undone.'),
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t('Flush'),
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t('Cancel')
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);
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}
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/**
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* Submit handler for the flush confirmation form.
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*/
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function thumb_flush_confirm_form_submit($form, &$form_state) {
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if ($form_state['values']['confirm']) {
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thumb_preset_flush($form_state['values']['identifier']);
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}
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$form_state['redirect'] = 'admin/build/thumb';
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}
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/**
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* Menu callback - Flush all thumbnails generated with a certain preset.
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*
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* @param $presetname
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* The preset to flush thumbnails for.
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*/
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function thumb_preset_flush($presetname) {
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$presetdir = realpath(file_directory_path() .'/thumb/'. $presetname);
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if (is_dir($presetdir)) {
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_thumb_recursive_delete($presetdir);
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}
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}
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/**
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* Recursively delete images under a certain path.
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*
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* @param $path
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* The path to delete images from.
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*/
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function _thumb_recursive_delete($path) {
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if (is_file($path) || is_link($path)) {
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unlink($path);
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}
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elseif (is_dir($path)) {
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$d = dir($path);
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while (($entry = $d->read()) !== FALSE) {
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if ($entry == '.' || $entry == '..') continue;
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$entry_path = $path .'/'. $entry;
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_thumb_recursive_delete($entry_path);
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}
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$d->close();
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rmdir($path);
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}
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else {
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watchdog('thumb', 'Unknown file type(%path) stat: %stat ', array('%path' => $path, '%stat' => print_r(stat($path), 1)), WATCHDOG_ERROR);
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}
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}
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