175 lines
7.4 KiB
PHP
175 lines
7.4 KiB
PHP
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<?php
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/**
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* @file
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* Configuration form for Lazy-load.
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*/
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/**
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* Lazy-load configuration form.
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*/
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function lazy_configuration_form($form, $form_state) {
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$defaults = variable_get('lazy_filter_defaults');
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$filter_enabled = lazy_is_filter_enabled();
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$form['settings'] = array(
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'#type' => 'fieldset',
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'#title' => t('Global settings'),
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'#collapsible' => FALSE,
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);
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$form['settings']['lazy_filter_alter_tag'] = array(
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'#type' => 'checkboxes',
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'#title' => t('Select the inline elements to be lazy-loaded via filter.'),
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'#options' => array(
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'img' => t('Images (%img tags)', array('%img' => '<img>')),
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'iframe' => t('Iframes (%iframe tags)', array('%iframe' => '<iframe>')),
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),
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'#default_value' => variable_get('lazy_filter_alter_tag', $defaults['lazy_filter_alter_tag']),
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'#description' => t('Only selected tags will be lazy-loaded in activated text-formats.'),
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'#disabled' => !$filter_enabled,
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);
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$form['settings']['lazy_filter_placeholderSrc'] = array(
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'#type' => 'textfield',
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'#title' => t('Placeholder image URL'),
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'#description' => t('Default is %val', array('%val' => $defaults['lazy_filter_placeholderSrc'])),
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'#default_value' => variable_get('lazy_filter_placeholderSrc', $defaults['lazy_filter_placeholderSrc']),
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'#size' => 100,
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);
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$form['paths'] = array(
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'#type' => 'fieldset',
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'#title' => t('Disabled pages'),
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'#description' => t('<p>There could be pages Lazy-loading should be disabled; set them here.</p>'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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);
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$form['paths']['lazy_disabled_paths'] = array(
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'#type' => 'textarea',
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'#title' => t('Lazy-loading is disabled for both <em>image fields</em> and <em>inline images/iframes</em> in content on following pages'),
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'#default_value' => variable_get('lazy_disabled_paths', $defaults['lazy_disabled_paths']),
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'#description' => t('Specify pages by using their paths. Enter one path per line.'),
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);
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$form['blazy'] = array(
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'#type' => 'fieldset',
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'#title' => t('bLazy configuration'),
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'#description' => t('<p><a href="!url">bLazy</a> is a lightweight lazy loading and multi-serving image script created by Bjoern Klinggaard. See its website for usage details and demos.</p>', array(
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'!url' => 'http://dinbror.dk/blog/blazy/',
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)),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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);
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$form['blazy']['lazy_filter_loadInvisible'] = array(
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'#type' => 'checkbox',
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'#title' => t('loadInvisible'),
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'#description' => t('If checked loads invisible (hidden) elements. Default is %val', array('%val' => ($defaults['lazy_filter_loadInvisible']) ? 'checked' : 'unchecked')),
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'#default_value' => variable_get('lazy_filter_loadInvisible', $defaults['lazy_filter_loadInvisible']),
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'#return_value' => TRUE,
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);
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$form['blazy']['lazy_filter_offset'] = array(
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'#type' => module_exists('elements') ? 'numberfield' : 'textfield',
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'#title' => t('offset'),
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'#description' => t('The offset controls how early you want the elements to be loaded before they’re visible. Default is %val, so %val pixel before an element is visible it’ll start loading.', array('%val' => $defaults['lazy_filter_offset'])),
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'#default_value' => variable_get('lazy_filter_offset', $defaults['lazy_filter_offset']),
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);
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$form['blazy']['lazy_filter_saveViewportOffsetDelay'] = array(
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'#type' => module_exists('elements') ? 'numberfield' : 'textfield',
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'#title' => t('saveViewportOffsetDelay'),
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'#description' => t('Delay for how often it should call the saveViewportOffset function on resize. Default is %val', array('%val' => $defaults['lazy_filter_saveViewportOffsetDelay'])),
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'#default_value' => variable_get('lazy_filter_saveViewportOffsetDelay', $defaults['lazy_filter_saveViewportOffsetDelay']),
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);
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$form['blazy']['lazy_filter_validateDelay'] = array(
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'#type' => module_exists('elements') ? 'numberfield' : 'textfield',
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'#title' => t('validateDelay'),
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'#description' => t('Delay for how often it should call the validate function on scroll/resize. Default is %val', array('%val' => $defaults['lazy_filter_validateDelay'])),
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'#default_value' => variable_get('lazy_filter_validateDelay', $defaults['lazy_filter_validateDelay']),
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);
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$form['blazy']['lazy_filter_selector'] = array(
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'#type' => 'textfield',
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'#title' => t('Selector class'),
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'#description' => t('Element selector for elements that should lazy load. Do not include a leading period. Default is %val', array('%val' => $defaults['lazy_filter_selector'])),
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'#default_value' => variable_get('lazy_filter_selector', $defaults['lazy_filter_selector']),
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);
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$form['blazy']['lazy_filter_skipClass'] = array(
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'#type' => 'textfield',
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'#title' => t('skipClass'),
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'#description' => t('Elements having this class name will be ignored. Default is %val', array('%val' => $defaults['lazy_filter_skipClass'])),
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'#default_value' => variable_get('lazy_filter_skipClass', $defaults['lazy_filter_skipClass']),
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);
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$form['blazy']['lazy_filter_errorClass'] = array(
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'#type' => 'textfield',
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'#title' => t('errorClass'),
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'#description' => t('The classname an element will get if something goes wrong. Default is %val', array('%val' => $defaults['lazy_filter_errorClass'])),
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'#default_value' => variable_get('lazy_filter_errorClass', $defaults['lazy_filter_errorClass']),
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);
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$form['blazy']['lazy_filter_successClass'] = array(
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'#type' => 'textfield',
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'#title' => t('successClass'),
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'#description' => t('The classname an element will get when loaded. Default is %val', array('%val' => $defaults['lazy_filter_successClass'])),
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'#default_value' => variable_get('lazy_filter_successClass', $defaults['lazy_filter_successClass']),
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);
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$form['blazy']['lazy_filter_src'] = array(
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'#type' => 'textfield',
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'#title' => t('src'),
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'#description' => t('Attribute where the original element source will be assigned. Do not change this unless attribute is used for other purposes. Default is %val', array('%val' => $defaults['lazy_filter_src'])),
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'#default_value' => variable_get('lazy_filter_src', $defaults['lazy_filter_src']),
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);
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$form['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Save configuration'),
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);
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// Notify the user if the library is not available, and disable the form.
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$library_installed = variable_get('lazy_library_installed');
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if (!$library_installed) {
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drupal_set_message(t('The bLazy library could not be found.'), 'warning');
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drupal_set_message(t('Follow the instructions in the README.md file or in the <a href="!url">help</a> page for installing the bLazy library.', array('!url' => url('admin/help/lazy'))), 'status');
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$form['submit']['#attributes']['disabled'] = TRUE;
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}
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return $form;
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}
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/**
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* Submit handler for lazy_configuration_form().
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*/
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function lazy_configuration_form_submit($form, &$form_state) {
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$int_value = array(
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'lazy_filter_offset',
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'lazy_filter_saveViewportOffsetDelay',
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'lazy_filter_validateDelay',
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);
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$bool_value = array(
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'lazy_filter_loadInvisible',
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);
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// Exclude unnecessary elements.
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form_state_values_clean($form_state);
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foreach ($form_state['values'] as $key => $value) {
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if (in_array($key, $int_value)) {
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$value = intval($value);
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}
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if (in_array($key, $bool_value)) {
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$value = !!$value;
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}
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if ('string' === gettype($value)) {
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$value = trim($value);
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}
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variable_set($key, $value);
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}
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drupal_set_message(t('The configuration options have been saved.'));
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}
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