Michael Bayne
106 lines
3.1 KiB
ActionScript
106 lines
3.1 KiB
ActionScript
//
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// Nenya library - tools for developing networked games
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// Copyright (C) 2002-2012 Three Rings Design, Inc., All Rights Reserved
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// http://code.google.com/p/nenya/
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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.flex {
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import flash.events.FocusEvent;
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import flash.text.TextField;
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import mx.controls.TextInput;
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import com.threerings.text.TextFieldUtil;
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/**
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* The class name of an image to use as the input prompt.
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*/
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[Style(name="prompt", type="Class")]
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/**
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* A special TextInput for entering Chat. One of these is used in ChatControl.
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*
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* A standard TextInput has the stupid behavior of selecting all the text when it receives
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* focus. Disable that so that we can receive focus and people can type and we don't blow away
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* whatever they had before.
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*/
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public class ChatInput extends TextInput
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{
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public function ChatInput ()
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{
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width = 147;
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showPrompt(true);
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}
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override public function stylesInitialized () :void
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{
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super.stylesInitialized();
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checkShowPrompt();
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}
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override public function styleChanged (styleProp :String) :void
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{
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super.styleChanged(styleProp);
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if (styleProp == "prompt") {
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checkShowPrompt();
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}
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}
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protected function checkShowPrompt () :void
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{
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showPrompt(focusManager == null || focusManager.getFocus() != this);
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}
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protected function showPrompt (show :Boolean) :void
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{
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setStyle("backgroundImage", (show && ("" == text)) ? getStyle("prompt") : undefined);
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}
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override protected function createChildren () :void
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{
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super.createChildren();
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// For some reason, in embeds, during certain circumstances, it's really hard to focus
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// chat. This makes that work better. The problem was *not* testable locally, only
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// on embeds in production. (I don't know why.)
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TextFieldUtil.setFocusable(TextField(textField));
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}
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override protected function focusInHandler (event :FocusEvent) :void
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{
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var oldValue :Boolean = textField.selectable;
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textField.selectable = false;
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try {
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super.focusInHandler(event);
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} finally {
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textField.selectable = oldValue;
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}
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showPrompt(false);
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}
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override protected function focusOutHandler (event :FocusEvent) :void
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{
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super.focusOutHandler(event);
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showPrompt(true);
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}
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}
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}
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