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<?php
// $Id$
/**
* @file panels_mini.module
*
* This module provides mini panels which are basically panels that can be
* used within blocks or other panels.
*/
/**
* Implementation of hook_perm().
*/
function panels_mini_perm() {
return array('create mini panels', 'administer mini panels');
}
/**
* Implementation of hook_menu().
*/
function panels_mini_menu() {
require_once drupal_get_path('module', 'panels_mini') . '/panels_mini.admin.inc';
return _panels_mini_menu();
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}
// ---------------------------------------------------------------------------
// Allow the rest of the system access to mini panels
/**
* Implementation of hook_block().
*
* Expose qualifying mini panels to Drupal's block system.
*/
function panels_mini_block($op = 'list', $delta = 0, $edit = array()) {
if ($op == 'list') {
$blocks = array();
$minis = panels_mini_load_all();
foreach ($minis as $panel_mini) {
if (empty($mini->disabled) && empty($mini->requiredcontext)) {
$blocks[$panel_mini->pid] = array(
'info' => t('Mini panel: "@title"', array('@title' => $panel_mini->title)),
);
}
}
return $blocks;
}
elseif ($op == 'view') {
$panel_mini = panels_mini_load($delta);
panels_load_include('plugins');
$panel_mini->context = $panel_mini->display->context = panels_context_load_contexts($panel_mini);
$panel_mini->display->css_id = panels_mini_get_id($panel_mini->name);
$block = array(
'subject' => $panel_mini->title,
'content' => panels_render_display($panel_mini->display),
);
return $block;
}
}
/**
* Expose all mini panels to our own system.
*/
function panels_mini_panels_content_types() {
$items['panels_mini'] = array(
'title' => t('Mini panels'),
'content_types' => 'panels_mini_content_types',
'render callback' => 'panels_mini_content',
'add callback' => 'panels_mini_add_mini_panel',
'edit callback' => 'panels_mini_edit_mini_panel',
'title callback' => 'panels_mini_title_mini_panel',
);
return $items;
}
/**
* Return each available mini panel available as a subtype.
*/
function panels_mini_content_types() {
$types = array();
foreach (panels_mini_load_all() as $mini) {
if (!empty($mini->disabled)) {
continue;
}
$types[$mini->name] = array(
'title' => filter_xss_admin($mini->title),
// For now mini panels will just use the contrib block icon.
'icon' => 'icon_contrib_block.png',
'path' => panels_get_path("content_types/block"),
'description' => filter_xss_admin($mini->title),
'category' => array(t(!empty($mini->category) ? $mini->category : 'Mini panel'), -8),
);
if (!empty($mini->requiredcontexts)) {
$types[$mini->name]['required context'] = array();
foreach ($mini->requiredcontexts as $context) {
$info = panels_get_context($context['name']);
// TODO: allow an optional setting
$types[$mini->name]['required context'][] = new panels_required_context($context['identifier'], $info['context name']);
}
}
}
return $types;
}
/**
* Statically store all used IDs to ensure all mini panels get a unique id.
*/
function panels_mini_get_id($name) {
static $id_cache = array();
$id = 'mini-panel-' . $name;
if (!empty($id_cache[$name])) {
$id .= "-" . $id_cache[$name]++;
}
else {
$id_cache[$name] = 1;
}
return $id;
}
/**
* Render a mini panel called from a panels display.
*/
function panels_mini_content($conf, $panel_args, &$contexts) {
$mini = panels_mini_load($conf['name']);
if (!$mini) {
return FALSE;
}
panels_load_include('plugins');
// Load up any contexts we might be using.
$context = panels_context_match_required_contexts($mini->requiredcontexts, $contexts);
$mini->context = $mini->display->context = panels_context_load_contexts($mini, FALSE, $context);
if (empty($mini) || !empty($mini->disabled)) {
return;
}
$mini->display->args = $panel_args;
$mini->display->css_id = panels_mini_get_id($conf['name']);
$mini->display->owner = $mini;
// unique ID of this mini.
$mini->display->owner->id = $mini->name;
$block = new stdClass();
$block->module = 'panels_mini';
$block->delta = $conf['name'];
$block->subject = filter_xss_admin($mini->title);
$block->content = panels_render_display($mini->display);
return $block;
}
/**
* Form to add a mini panel to a panel.
*/
function panels_mini_add_mini_panel($id, $parents, $conf = array()) {
$conf['name'] = $id;
return panels_mini_edit_mini_panel($id, $parents, $conf);
}
/**
* Returns an edit form for the mini panel.
*
* There isn't much here as most of this is set up at mini panel creation time.
*/
function panels_mini_edit_mini_panel($id, $parents, $conf) {
$form['name'] = array(
'#type' => 'value',
'#value' => $conf['name'],
);
return $form;
}
function panels_mini_title_mini_panel($conf) {
$mini = panels_mini_load($conf['name']);
if (!$mini) {
return t('Deleted/missing mini panel @name', array('@name' => $conf['name']));
}
$title = filter_xss_admin($mini->title);
if (empty($title)) {
$title = t('Untitled mini panel');
}
return $title;
}
// ---------------------------------------------------------------------------
// Database functions.
/**
* A list of the fields used in the panel_mini table.
*/
function panels_mini_fields() {
return array(
'name' => "'%s'",
'category' => "'%s'",
'title' => "'%s'",
'contexts' => "'%s'",
'requiredcontexts' => "'%s'",
'relationships' => "'%s'",
);
}
/**
* Sanitize a mini panel, to guarantee certain data is as we believe it will be.
*/
function panels_mini_sanitize($mini) {
foreach (array('contexts', 'relationships', 'requiredcontexts') as $id) {
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if (!isset($mini->$id) || !is_array($mini->$id)) {
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$mini->$id = array();
}
}
return $mini;
}
/**
* Fetch all mini panels in the system.
*
* This function does not cache.
*/
function panels_mini_load_all($page_size = 0) {
static $results = array();
if (array_key_exists($page_size, $results)) {
return $results[$page_size];
}
$panels = $dids = array();
$query = "SELECT * FROM {panels_mini}";
if ($page_size) {
$result = pager_query($query, $page_size);
}
else {
$result = db_query($query);
}
while ($mini = db_fetch_object($result)) {
$mini->contexts = (!empty($mini->contexts)) ? unserialize($mini->contexts) : array();
$mini->requiredcontexts = (!empty($mini->requiredcontexts)) ? unserialize($mini->requiredcontexts) : array();
$mini->relationships = (!empty($mini->relationships)) ? unserialize($mini->relationships) : array();
$mini->category = (!empty($mini->category)) ? $mini->category : 'Mini panels';
$mini->type = t('Local');
$panels[$mini->name] = panels_mini_sanitize($mini);
}
$status = variable_get('panel_mini_defaults', array());
foreach (panels_mini_default_panels() as $mini) {
// Determine if default panel is enabled or disabled.
if (isset($status[$mini->name])) {
$mini->disabled = $status[$mini->name];
}
if (!empty($panels[$mini->name])) {
$panels[$mini->name]->type = t('Overridden');
}
else {
$mini->type = t('Default');
$panels[$mini->name] = $mini;
}
}
$results[$page_size] = $panels;
return $results[$page_size];
}
/**
* Load a mini panel.
*/
function panels_mini_load($pid) {
static $cache = array();
if (array_key_exists($pid, $cache)) {
return $cache[$pid];
}
if (!is_numeric($pid)) {
$where = "name = '%s'";
}
else {
$where = 'pid = %d';
}
$panel_mini = db_fetch_object(db_query("SELECT * FROM {panels_mini} WHERE $where", $pid));
if (!$panel_mini) {
$defaults = panels_mini_default_panels();
if (isset($defaults[$pid])) {
$panel_mini = $defaults[$pid];
$status = variable_get('panel_mini_defaults', array());
// Determine if default panel is enabled or disabled.
if (isset($status[$panel_mini->name])) {
$panel_mini->disabled = $status[$panel_mini->name];
}
$cache[$pid] = $panel_mini;
return $panel_mini;
}
return;
}
$panel_mini->contexts = (!empty($panel_mini->contexts)) ? unserialize($panel_mini->contexts) : array();
$panel_mini->requiredcontexts = (!empty($panel_mini->requiredcontexts)) ? unserialize($panel_mini->requiredcontexts) : array();
$panel_mini->relationships = (!empty($panel_mini->relationships)) ? unserialize($panel_mini->relationships) : array();
$cache[$pid] = panels_mini_sanitize($panel_mini);
$cache[$pid]->display = panels_load_display($cache[$pid]->did);
return $cache[$pid];
}
/**
* Save a mini panel.
*/
function panels_mini_save(&$panel_mini) {
$fields = $types = $values = $pairs = array();
// Save the display if one was given to us.
if (!empty($panel_mini->display)) {
$display = panels_save_display($panel_mini->display);
}
// Ensure empty values get translated correctly.
// Also make sure we don't mess up the original.
$mini_clone = drupal_clone(panels_mini_sanitize($panel_mini));
// If pid is set to our "magic value", this is an insert, otherwise an update.
$insert = $mini_clone->pid && $mini_clone->pid == 'new';
// Build arrays of fields and types (resp. pairs of both) and of values.
foreach (panels_mini_fields() as $field => $type) {
// Skip empty values.
if (isset($mini_clone->$field)) {
if ($insert) {
$fields[] = $field;
$types[] = $type;
}
else {
$pairs[] = "$field = $type";
}
// Build the $values array, serializing some fields.
$serialize = in_array($field, array('contexts', 'requiredcontexts', 'relationships'));
$values[] = $serialize ? serialize($mini_clone->$field) : $mini_clone->$field;
}
}
if ($insert) {
// Build the query adding the new primary key and the did.
$sql = 'INSERT INTO {panels_mini} (' . implode(', ', $fields) . ', did) VALUES (' . implode(', ', $types) . ', %d)';
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$values[] = $display->did;
db_query($sql, $values);
// Determine the new primary key.
$mini_clone->pid = db_last_insert_id('panels_mini', 'pid');
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}
else {
// Build the query filtering by the primary key.
$sql = 'UPDATE {panels_mini} SET ' . implode(', ', $pairs) . ' WHERE pid = %d';
$values[] = $mini_clone->pid;
db_query($sql, $values);
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}
return $mini_clone->pid;
}
/**
* Delete a mini panel.
*/
function panels_mini_delete($panel_mini) {
db_query("DELETE FROM {panels_mini} WHERE pid = %d", $panel_mini->pid);
db_query("DELETE FROM {blocks} WHERE module = 'panels_mini' AND delta = %d", $panel_mini->pid);
return panels_delete_display($panel_mini->did);
}
/**
* Export a mini panel into PHP code for use in import.
*
* The code returned from can be used directly in panels_mini_save().
*/
function panels_mini_export($panel_mini, $prefix = '') {
$output = '';
$fields = panels_mini_fields();
$output .= $prefix . '$mini = new stdClass()' . ";\n";
$output .= $prefix . '$mini->pid = \'new\'' . ";\n";
foreach ($fields as $field => $sub) {
$output .= $prefix . ' $mini->' . $field . ' = ' . panels_var_export($panel_mini->$field, ' ') . ";\n";
}
// Export the primary display
$display = !empty($panel_mini->display) ? $panel_mini->display : panels_load_display($panel_mini->did);
$output .= panels_export_display($display, $prefix);
$output .= $prefix . '$mini->display = $display' . ";\n";
return $output;
}
/**
* Get all 'default' mini panels.
*/
function panels_mini_default_panels() {
$panels = module_invoke_all('default_panel_minis');
if (!is_array($panels)) {
$panels = array();
}
return $panels;
}
/**
* Remove the block version of mini panels from being available content types.
*/
function panels_mini_panels_block_info($module, $delta, &$info) {
$info = NULL;
}
/**
* Implementation of hook_panels_exportables().
*/
function panels_mini_panels_exportables($op = 'list', $panels = NULL, $name = 'foo') {
static $all_panels = NULL;
if ($op == 'list') {
if (empty($all_panels)) {
$all_panels = panels_mini_load_all();
}
foreach ($all_panels as $name => $panel) {
$return[$name] = check_plain($name) . ' (' . check_plain($panel->title) . ')';
}
return $return;
}
if ($op == 'export') {
$code = "/**\n";
$code .= " * Implementation of hook_default_panel_minis()\n";
$code .= " */\n";
$code .= "function " . $name . "_default_panel_minis() {\n";
foreach ($panels as $panel => $truth) {
$code .= panels_mini_export($all_panels[$panel], ' ');
$code .= ' $minis[\'' . check_plain($panel) . '\'] = $mini;' . "\n\n\n";
}
$code .= " return \$minis;\n";
$code .= "}\n";
return $code;
}
}
/**
* Menu callback to check to see if a mini panel is valid as part
* of a path, and if it is, return the mini.
*/
function panels_mini_admin_load($name) {
$mini = panels_mini_load($name);
if ($mini && empty($mini->disabled)) {
return $mini;
}
}