Added forgotten selection manager

2012-03-28 08:05:28 +00:00 · 2012-03-28 08:05:28 +00:00 · 32f02acf8f
commit 32f02acf8f
parent 629b9bb393
1 changed files with 118 additions and 0 deletions
--- a/etemplate/js/et2_dataview_controller_selection.js
+++ b/etemplate/js/et2_dataview_controller_selection.js
@ -0,0 +1,118 @@
+/**
+ * eGroupWare eTemplate2
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package etemplate
+ * @subpackage dataview
+ * @link http://www.egroupware.org
+ * @author Andreas Stöckel
+ * @copyright Stylite 2011-2012
+ * @version $Id$
+ */
+
+/**
+ * The selectioManager is internally used by the et2_dataview_controller class
+ * to manage the row selection.
+ */
+var et2_dataview_selectionManager = Class.extend({
+
+	init: function (_indexMap) {
+		// Copy the reference to the index map
+		this._indexMap = _indexMap;
+
+		// Internal map which contains all curently selected uids
+		this._selectedUids = {};
+
+		// Controls whether the selection is currently inverted (e.g. after
+		// selectAll)
+		this._invertSelection = false;
+	},
+
+	setIndexMap: function (_indexMap) {
+		this._indexMap = _indexMap;
+	},
+
+	/**
+	 * Resets the selection state of all selected elements.
+	 */
+	resetSelection: function () {
+		// Iterate over the index map and reset the selection flag of all rows
+		for (var key in this._indexMap)
+		{
+			if (this._indexMap[key].ao)
+			{
+				this._indexMap[key].ao.setSelected(false);
+			}
+		}
+
+		// Reset the internal representation and the inversion flag
+		this._selectedUids = {};
+		this._invertSelection = false;
+	},
+
+	/**
+	 * Marks the given uid as selected.
+	 */
+	uidAddSelection: function (_uid) {
+		this._selectedUids[_uid] = true;
+	},
+
+	/**
+	 * Removes the selection from the given uid.
+	 */
+	uidRemoveSelection: function (_uid) {
+		delete this._selectedUids[_uid];
+	},
+
+	/**
+	 * Returns whether the given uid is selected or not.
+	 */
+	uidIsSelected: function (_uid) {
+		return (!this._invertSelection) ===
+				(this._selectedUids[_uid] ? true : false);
+	},
+
+	/**
+	 * Hooks into the given action object / action object interface in order
+	 * to handle selection.
+	 */
+	hook: function (_ao, _aoi, _uid) {
+
+		// Hook into the action object state change handler, as we need
+		// our own selection code
+		// Big TODO: Remove the old selection handling code from
+		// egwAction once it is no longer used outside et2 applications
+		_aoi.setStateChangeCallback(
+			function (_newState, _changedBit, _shiftState) {
+
+				var selected = egwBitIsSet(_newState, EGW_AO_STATE_SELECTED);
+
+				// Deselect all other objects inside this container, if the "MULTI" shift-
+				// state is not set
+				if (!egwBitIsSet(_shiftState, EGW_AO_SHIFT_STATE_MULTI))
+				{
+					this.resetSelection();
+				}
+
+				// Update the internal status of the uid
+				if (selected)
+				{
+					this.uidAddSelection(_uid);
+				}
+				else
+				{
+					this.uidRemoveSelection(_uid);
+				}
+
+				_ao.setSelected(selected);
+
+				return _newState;
+
+			}, this);
+
+		// Set the selection state of the ao
+		_ao.setSelected(this.uidIsSelected(_uid));
+	}
+
+});
+