mirror of
https://github.com/EGroupware/egroupware.git
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127 lines
3.7 KiB
PHP
127 lines
3.7 KiB
PHP
<?php
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/**
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* EGroupware - Home - Portlet interface
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*
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* @link www.egroupware.org
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* @author Nathan Gray
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* @copyright (c) 2013 by Nathan Gray
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* @package home
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* @subpackage portlet
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @version $Id$
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*/
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abstract class home_portlet
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{
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/**
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* Attributes that are common to all portlets, but are customized indirectly
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* through the UI, rather than explictly through the configure popup
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*/
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public static $common_attributes = array(
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'width', 'height', 'row', 'col'
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);
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/**
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* Constructor sets up the portlet according to the user's saved property values
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* for this particular portlet. It is possible to have multiple instances of the
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* same portlet with different properties.
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*
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* The implementing class is allowed to modify the context, if needed, but it is
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* better to use get_properties().
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*
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* @param context Array portlet settings such as size, as well as values for properties
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* @param boolean $need_reload Flag to indicate that the portlet needs to be reloaded (exec will be called)
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*/
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public abstract function __construct(Array &$context = array(), &$need_reload = false);
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/**
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* Some descriptive information about the portlet, so that users can decide if
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* they want it or not, and for inclusion in lists, hover text, etc.
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*
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* These should be already translated, no further translation will be done.
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*
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* @return Array with keys:
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* - displayName: Used in lists
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* - title: Put in the portlet header
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* - description: A short description of what this portlet does or displays
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*/
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public abstract function get_description();
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/**
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* Generate the display for the portlet
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*
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* @param id String unique ID, provided to the portlet so it can make sure content is
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* unique, if needed.
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* @param etemplate etemplate_new Etemplate to generate content
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*/
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public abstract function exec($id = null, etemplate_new &$etemplate = null);
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/**
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* Return a list of settings to customize the portlet.
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*
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* Settings should be in the same style as for preferences. It is OK to return an empty array
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* for no customizable settings.
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*
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* These should be already translated, no further translation will be done.
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*
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* @see preferences/inc/class.preferences_settings.inc.php
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* @return Array of settings. Each setting should have the following keys:
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* - name: Internal reference
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* - type: Widget type for editing
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* - label: Human name
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* - help: Description of the setting, and what it does
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* - default: Default value, for when it's not set yet
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*/
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public function get_properties()
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{
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// Include the common attributes, or they won't get saved
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$properties = array();
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foreach(self::$common_attributes as $prop)
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{
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$properties[$prop] = array('name' => $prop);
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}
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$properties[] = array(
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'name' => 'color',
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'type' => 'colorpicker',
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'label' => lang('Color'),
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);
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return $properties;
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}
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/**
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* Return a list of allowable actions for the portlet.
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*
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* These actions will be merged with the default portlet actions. Use the
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* same id / key to override the default action.
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*/
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public abstract function get_actions();
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/**
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* If this portlet can accept, display, or otherwise handle multiple
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* EgroupWare entries. Used for drag and drop processing. How the entries
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* are handled are up to the portlet.
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*/
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public function accept_multiple()
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{
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return false;
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}
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/**
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* If this portlet can be created by dropping, these are the drop types
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* that are accepted
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*
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* @return boolean|String[]
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*/
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public function accept_drop()
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{
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// In general, no
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return false;
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}
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public function __toString()
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{
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return get_called_class() . ' Context:' . array2string($this->context);
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}
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}
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