<?php
/**
 * The CategoryForm control is used to create and manipulate categories in Vanilla.
 *
 * Copyright 2003 Mark O'Sullivan
 * This file is part of Lussumo's Software Library.
 * Lussumo's Software Library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
 * Lussumo's Software Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License along with Vanilla; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * The latest source code is available at www.vanilla1forums.com
 * Contact Mark O'Sullivan at mark [at] lussumo [dot] com
 *
 * @author Mark O'Sullivan
 * @copyright 2003 Mark O'Sullivan
 * @license http://www.gnu.org/licenses/gpl-2.0.html GPL 2
 * @package Vanilla
 */


/**
 * The CategoryForm control is used to create and manipulate categories in Vanilla.
 * @package Vanilla
 */
class CategoryForm extends PostBackControl {

	var $CategoryManager;
	var $CategoryData;
	var $CategorySelect;
	var $CategoryRoles;
	var $Category;

	function CategoryForm(&$Context) {
		$this->Name = 'CategoryForm';
		$this->ValidActions = array('Categories', 'Category', 'ProcessCategory', 'CategoryRemove', 'ProcessCategoryRemove');
		$this->Constructor($Context);
		if ($this->IsPostBack) {
			$RedirectUrl = '';
			$this->Context->PageTitle = $this->Context->GetDefinition('CategoryManagement');

			// Add the javascript to the head for sorting categories
			if ($this->PostBackAction == "Categories") {
				global $Head;
				$Head->AddScript('js/prototype.js', '~', 150);
				$Head->AddScript('js/scriptaculous.js', '~', 151);
			}

			$CategoryID = ForceIncomingInt('CategoryID', 0);
			$ReplacementCategoryID = ForceIncomingInt('ReplacementCategoryID', 0);
			$this->CategoryManager = $this->Context->ObjectFactory->NewContextObject($this->Context, 'CategoryManager');

			if ($this->PostBackAction == 'ProcessCategory' && $this->IsValidFormPostBack()) {
				$this->Category = $this->Context->ObjectFactory->NewObject($this->Context, 'Category');
				$this->Category->GetPropertiesFromForm($this->Context);
				$Action = ($this->Category->CategoryID == 0) ? "SavedNew" : "Saved";
				if (($this->Category->CategoryID > 0 && $this->Context->Session->User->Permission('PERMISSION_EDIT_CATEGORIES'))
					|| ($this->Category->CategoryID == 0 && $this->Context->Session->User->Permission('PERMISSION_ADD_CATEGORIES'))) {
					if ($this->CategoryManager->SaveCategory($this->Category)) {
						$this->CallDelegate('PostSaveCategory');
						$RedirectUrl = GetUrl(
							$this->Context->Configuration, $this->Context->SelfUrl, '', '', '', '',
							'PostBackAction=Categories&Action='.$Action);
					}
				} else {
					$this->IsPostBack = 0;
				}
			} elseif ($this->PostBackAction == 'ProcessCategoryRemove' && $this->IsValidFormPostBack()) {
				if ($this->Context->Session->User->Permission('PERMISSION_REMOVE_CATEGORIES')) {
					if ($this->CategoryManager->RemoveCategory($CategoryID, $ReplacementCategoryID)) {

						$this->DelegateParameters['RemovedCategory'] = $CategoryID;
						$this->DelegateParameters['ReplacementCategory'] = $ReplacementCategoryID;
						$this->CallDelegate('PostRemoveCategory');

						$RedirectUrl = GetUrl(
							$this->Context->Configuration, $this->Context->SelfUrl, '', '', '', '',
							'PostBackAction=Categories&Action=Removed');
					}
				} else {
					$this->IsPostBack = 0;
				}
			}

			if (in_array($this->PostBackAction, array('CategoryRemove', 'Categories', 'Category', 'ProcessCategory', 'ProcessCategoryRemove'))) {
				$this->CategoryData = $this->CategoryManager->GetCategories(1, 0, 0);
			}
			if (in_array($this->PostBackAction, array('CategoryRemove', 'Category', 'ProcessCategoryRemove', 'ProcessCategory'))) {
				$this->CategorySelect = $this->Context->ObjectFactory->NewObject($this->Context, 'Select');
				$this->CategorySelect->Name = 'CategoryID';
				$this->CategorySelect->CssClass = 'SmallInput';
				$this->CategorySelect->AddOptionsFromDataSet($this->Context->Database, $this->CategoryData, 'CategoryID', 'Name');
			}
			if (in_array($this->PostBackAction, array('Category', 'ProcessCategory'))) {
				$this->CategoryRoles = $this->Context->ObjectFactory->NewObject($this->Context, 'Checkbox');
				$this->CategoryRoles->Name = 'CategoryRoleBlock[]';
				$CategoryRoleData = $this->CategoryManager->GetCategoryRoleBlocks($CategoryID);
				$this->CategoryRoles->AddOptionsFromDataSet($this->Context->Database,
					$CategoryRoleData,
					'RoleID',
					'Name',
					'Blocked',
					1);
				$this->CategoryRoles->CssClass = 'CheckBox';
			}
			if ($this->PostBackAction == 'Category') {
				if ($CategoryID > 0) {
					$this->Category = $this->CategoryManager->GetCategoryById($CategoryID);
				} else {
					$this->Category = $this->Context->ObjectFactory->NewObject($this->Context, 'Category');
				}
			}
			if (in_array($this->PostBackAction, array('ProcessCategory', 'ProcessCategoryRemove'))) {
				// Show the form again with errors
				$this->PostBackAction = str_replace('Process', '', $this->PostBackAction);
			}

			if ($RedirectUrl) {
				//@todo: should the process die here?
				Redirect($RedirectUrl, '302', '', 0);
			}
		}
		$this->CallDelegate('Constructor');
	}

	function Render() {
		if ($this->IsPostBack) {
			$this->CallDelegate('PreRender');
			$this->PostBackParams->Clear();
			$CategoryID = ForceIncomingInt('CategoryID', 0);

			if ($this->PostBackAction == 'Category') {
				$this->PostBackParams->Set('PostBackAction', 'ProcessCategory');
				$this->CallDelegate('PreEditRender');
				include(ThemeFilePath($this->Context->Configuration, 'settings_category_edit.php'));
				$this->CallDelegate('PostEditRender');

			} elseif ($this->PostBackAction == 'CategoryRemove') {
				$this->PostBackParams->Set('PostBackAction', 'ProcessCategoryRemove');
				$this->CategorySelect->Attributes = "onchange=\"document.location='".GetUrl($this->Context->Configuration, $this->Context->SelfUrl, '', '', '', '', 'PostBackAction=CategoryRemove')."&amp;CategoryID='+this.options[this.selectedIndex].value;\"";
				$this->CategorySelect->SelectedValue = $CategoryID;
				$this->CallDelegate('PreRemoveRender');
				include(ThemeFilePath($this->Context->Configuration, 'settings_category_remove.php'));
				$this->CallDelegate('PostRemoveRender');

			} else {
				$this->PostBackParams->Set('PostBackAction', 'ProcessCategories');
				$this->CallDelegate('PreListRender');
				include(ThemeFilePath($this->Context->Configuration, 'settings_category_list.php'));
				$this->CallDelegate('PostListRender');

			}
			$this->CallDelegate('PostRender');
		}
	}
}
?>