Ray Greenwell
a22ca8b079
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4131 542714f4-19e9-0310-aa3c-eee0fc999fb1
91 lines
3.3 KiB
ActionScript
91 lines
3.3 KiB
ActionScript
//
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// $Id: PlaceViewUtil.java 3098 2004-08-27 02:12:55Z mdb $
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//
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// Narya library - tools for developing networked games
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// Copyright (C) 2002-2004 Three Rings Design, Inc., All Rights Reserved
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// http://www.threerings.net/code/narya/
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package com.threerings.crowd.client {
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import flash.display.DisplayObjectContainer;
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import com.threerings.crowd.data.PlaceObject;
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/**
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* Provides a mechanism for dispatching notifications to all user
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* interface elements in a hierarchy that implement the {@link PlaceView}
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* interface. Look at the documentation for {@link PlaceView} for more
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* explanation.
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*/
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public class PlaceViewUtil
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{
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/**
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* Dispatches a call to {@link PlaceView#willEnterPlace} to all UI
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* elements in the hierarchy rooted at the component provided via the
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* <code>root</code> parameter.
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*
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* @param root the component at which to start traversing the UI
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* hierarchy.
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* @param plobj the place object that is about to be entered.
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*/
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public static function dispatchWillEnterPlace (
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root :Object, plobj :PlaceObject) :void
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{
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dispatch(root, plobj, "willEnterPlace");
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}
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/**
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* Dispatches a call to {@link PlaceView#didLeavePlace} to all UI
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* elements in the hierarchy rooted at the component provided via the
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* <code>root</code> parameter.
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*
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* @param root the component at which to start traversing the UI
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* hierarchy.
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* @param plobj the place object that is about to be entered.
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*/
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public static function dispatchDidLeavePlace (
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root :Object, plobj :PlaceObject) :void
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{
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dispatch(root, plobj, "didLeavePlace");
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}
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private static function dispatch (
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root :Object, plobj :PlaceObject, funct :String) :void
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{
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// dispatch the call on this component if it implements PlaceView
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if (root is PlaceView) {
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try {
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(root as PlaceView)[funct](plobj);
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} catch (e :Error) {
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var log :Log = Log.getLog(PlaceViewUtil);
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log.warning("Component choked on " + funct + "() " +
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"[component=" + root + ", plobj=" + plobj + "].");
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log.logStackTrace(e);
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}
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}
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// now traverse all of this component's children
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if (root is DisplayObjectContainer) {
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var cont :DisplayObjectContainer = (root as DisplayObjectContainer);
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for (var ii :int = 0; ii < cont.numChildren; ii++) {
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dispatch(cont.getChildAt(ii), plobj, funct);
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}
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}
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}
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}
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}
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