'Diggthis',
'description' => 'Enable the node types and set the properties for the diggthis button.',
'page callback' => 'drupal_get_form',
'page arguments' => array('diggthis_admin_settings'),
'access arguments' => array('administer site configuration'),
'type' => MENU_NORMAL_ITEM
);
return $items;
}
/**
* Implementaiton of hook_theme
*/
function diggthis_theme() {
return array(
'diggthis_button' => array(
'arguments' => array('js_code' => NULL)
)
);
}
/**
* Admin settings form for the diggthis module
*/
function diggthis_admin_settings() {
$form = array();
$form['diggthis'] = array(
'#type' => 'fieldset',
'#title' => 'diggthis '. t('settings')
);
$form['diggthis']['diggthis_button_skin'] = array(
'#type' => 'select',
'#title' => t('Button skin'),
'#default_value' => variable_get('diggthis_button_skin', 'standard'),
'#options' => array(
'standard' => t('standard'),
'compact' => t('compact')
),
'#description' => t('The Button skin option controls the look at the button. If set to standard the button defaults to a standard digg button (much like the one you see on Digg itself). If specified as compact, then a smaller horizontal visual design is used that will fit better into a list of links.')
);
$form['diggthis']['diggthis_button_bgcolor'] = array(
'#type' => 'textfield',
'#title' => t('Button background color'),
'#default_value' => variable_get('diggthis_button_bgcolor', ''),
'#size' => 7,
'#maxlength' => 7,
'#description' => t('Enter a hexadecimal color value here, e.g. #ff9900. Include the leading # and enter 6 numbers/digits')
);
$form['diggthis']['diggthis_button_weight'] = array(
'#type' => 'select',
'#title' => t('Weight'),
'#default_value' => variable_get('diggthis_button_weight', 10),
'#options' => drupal_map_assoc(range(-20, 20)),
'#description' => t('Specifies the position of the Diggthis button. A low weight, e.g. -20 will display the button above the content and a high weight, e.g. 20 below the content.')
);
$form['diggthis']['diggthis_node_types'] = array(
'#type' => 'checkboxes',
'#title' => t('Node Types'),
'#default_value' => variable_get('diggthis_node_types', array()),
'#options' => node_get_types('names'),
'#description' => t('activate the node types in where the digg button shall be displayed')
);
return system_settings_form($form);
}
/**
* Implementation of hook_nodeapi().
*/
function diggthis_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
// we're in full node view
if ($op == 'view' && !$a3) {
if (in_array($node->type, variable_get('diggthis_node_types', array()), TRUE)) {
$node->content['diggthis_button'] = array(
'#value' => diggthis_button_create($node),
'#weight' => variable_get('diggthis_button_weight', 10)
);
}
}
}
/**
* Implementaiton of hook_block
*/
function diggthis_block($op = 'list', $delta = 0, $edit = array()) {
$blocks = array();
switch ( $op ) {
case 'list':
$blocks[0] = array(
'info' => t('Digg This'),
'weight' => 0
);
break;
case 'view':
$blocks['content'] = diggthis_button_create();
$blocks['subject'] = variable_get('diggthis_block_title_'.$delta, t('Digg this'));
break;
}
return $blocks;
}
/**
* A function that generates the JavaScript
* code for embedding hte diggthis button
*
* @param $node
* an optional node object
*/
function diggthis_button_create($node = false) {
// we are in node view
if ($node) {
$path = 'node/'. $node->nid;
$title = check_plain($node->title);
$teaser = strip_tags($node->teaser);
}
elseif ('admin' != arg(0)){
$path = check_plain($_GET['q']);
$title = drupal_get_title();
$teaser = '';
// block display in node view
if ('node' == arg(0)
&& is_numeric(arg(1))
&& !arg(2)) {
$node = node_load(arg(1));
$teaser = strip_tags($node->teaser);
}
}
// get the absolute URL of the current page
$url = url($path, array('absolute' => TRUE));
// make sure strings are not to long
$title = diggthis_cut($title, 60);
$teaser = drupal_to_js(diggthis_cut($teaser, 350));
// only change the background color if configured
$bgcolor = variable_get('diggthis_button_bgcolor', '');
if ($bgcolor) {
$bg_string = "digg_bgcolor = '$bgcolor';";
}
$skin = variable_get('diggthis_button_skin', 'standard');
$digg_js =<<
digg_url = '$url';
digg_title = $title;
digg_bodytext = $teaser;
$bg_string
digg_skin = '$skin';
EOF;
return theme('diggthis_button', $digg_js);
}
/**
* Theme function for button display
*
* @param $js_code
* The JavaScript code to display the diggthis button
*/
function theme_diggthis_button($js_code) {
return ''. $js_code .'
';
}
/*
* Helper function for shortening a string
* to the desired length
*
* @param $string
* The string that will be shortened
*
* @param $length
* An integer to set the length of the resulting string
*/
function diggthis_cut($string, $length) {
if (strlen($string) > $length) {
$string = substr($string, 0, $length);
$string = preg_replace("/\s+\S+$/", "...", $string);
}
return $string;
}