From ec58f52b62c30358de700b53e3f34476cf206f94 Mon Sep 17 00:00:00 2001
From: Ralf Becker <ralfbecker@outdoor-training.de>
Date: Sun, 21 Aug 2011 12:43:02 +0000
Subject: [PATCH] implemented disabled columns

---
 etemplate/inc/class.etemplate_widget.inc.php  |  1 +
 .../inc/class.etemplate_widget_grid.inc.php   | 64 ++++++++++++++++++-
 2 files changed, 64 insertions(+), 1 deletion(-)

diff --git a/etemplate/inc/class.etemplate_widget.inc.php b/etemplate/inc/class.etemplate_widget.inc.php
index 2ab75ec1cd..b268f22abd 100644
--- a/etemplate/inc/class.etemplate_widget.inc.php
+++ b/etemplate/inc/class.etemplate_widget.inc.php
@@ -13,6 +13,7 @@
 
 // include only widgets which can't be autoloaded (or contain sub-widgets which cant)
 require_once EGW_INCLUDE_ROOT.'/etemplate/inc/class.etemplate_widget_textbox.inc.php';
+require_once EGW_INCLUDE_ROOT.'/etemplate/inc/class.etemplate_widget_grid.inc.php';
 
 /**
  * eTemplate widget baseclass
diff --git a/etemplate/inc/class.etemplate_widget_grid.inc.php b/etemplate/inc/class.etemplate_widget_grid.inc.php
index c9d0cfdead..2a1063d77a 100644
--- a/etemplate/inc/class.etemplate_widget_grid.inc.php
+++ b/etemplate/inc/class.etemplate_widget_grid.inc.php
@@ -12,7 +12,7 @@
  */
 
 /**
- * eTemplate grid widget
+ * eTemplate grid widget incl. row(s) and column(s)
  */
 class etemplate_widget_grid extends etemplate_widget_box
 {
@@ -24,4 +24,66 @@ class etemplate_widget_grid extends etemplate_widget_box
 	 * @var string|array
 	 */
 	protected $legacy_options = null;
+
+	/**
+	 * Run a given method on all children
+	 *
+	 * Reimplemented to implement column based disabling:
+	 * - added 4th var-parameter to hold key of disabled column
+	 * - if a column is disabled run returns false and key get added by columns run to $columns_disabled
+	 * - row run method checks now for each child (arbitrary widget) if it the column's key is included in $columns_disabled
+	 * - as a grid can contain other grid's as direct child, we have to backup and initialise $columns_disabled in grid run!
+	 *
+	 * @param string $method_name
+	 * @param array $params=array('') parameter(s) first parameter has to be the cname!
+	 * @param boolean $respect_disabled=false false (default): ignore disabled, true: method is NOT run for disabled widgets AND their children
+	 * @param array $columns_disabled=array() disabled columns
+	 */
+	public function run($method_name, $params=array(''), $respect_disabled=false, &$columns_disabled=array())
+	{
+		// as a grid can contain other grid's as direct child, we have to backup and initialise $columns_disabled
+		if ($this->type == 'grid')
+		{
+			$backup_columns_disabled = $columns_disabled;
+			$columns_disabled = array();
+		}
+		if ($respect_disabled && ($disabled = $this->attrs['disabled']))
+		{
+			// check if disabled contains @ or !
+			$cname = $params[0];
+			$disabled = self::check_disabled($disabled, $cname ? self::get_array(self::$request->content, $cname) : self::$request->content);
+			if ($disabled)
+			{
+				error_log(__METHOD__."('$method_name', ".array2string($params).', '.array2string($respect_disabled).") $this disabled='{$this->attrs['disabled']}'='$disabled': NOT running");
+				return false;	// return
+			}
+		}
+		if (method_exists($this, $method_name))
+		{
+			call_user_func_array(array($this, $method_name), $params);
+		}
+		foreach($this->children as $n => $child)
+		{
+			if ($type == 'row')
+			{
+				if (in_array($n, $columns_disabled))
+				{
+					error_log(__METHOD__."('$method_name', ".array2string($params).', '.array2string($respect_disabled).") $this column $n is disabled: NOT running");
+					continue;	// do NOT run $method_name on disabled columns
+				}
+			}
+			$disabled = $child->run($method_name, $params, $respect_disabled, $columns_disabled) === false;
+
+			if ($this->type == 'columns' && $disabled)
+			{
+				$columns_disabled[] = $n;	// mark column as disabled
+			}
+		}
+		if ($this->type == 'grid')
+		{
+			$columns_disabled = $backup_columns_disabled;
+		}
+		return true;
+	}
 }
+etemplate_widget::registerWidget('etemplate_widget_grid', array('grid', 'rows', 'row', 'columns', 'column'));