/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

///<reference path="ImageView.ts"/>
///<reference path="../view/View.ts"/>
///<reference path="../R/attr.ts"/>

module android.widget{

    /**
     * <p>
     * Displays a button with an image (instead of text) that can be pressed
     * or clicked by the user. By default, an ImageButton looks like a regular
     * {@link android.widget.Button}, with the standard button background
     * that changes color during different button states. The image on the surface
     * of the button is defined either by the {@code android:src} attribute in the
     * {@code <ImageButton>} XML element or by the
     * {@link #setImageResource(int)} method.</p>
     *
     * <p>To remove the standard button background image, define your own
     * background image or set the background color to be transparent.</p>
     * <p>To indicate the different button states (focused, selected, etc.), you can
     * define a different image for each state. E.g., a blue image by default, an
     * orange one for when focused, and a yellow one for when pressed. An easy way to
     * do this is with an XML drawable "selector." For example:</p>
     * <pre>
     * &lt;?xml version="1.0" encoding="utf-8"?&gt;
     * &lt;selector xmlns:android="http://schemas.android.com/apk/res/android"&gt;
     *     &lt;item android:state_pressed="true"
     *           android:drawable="@drawable/button_pressed" /&gt; &lt;!-- pressed --&gt;
     *     &lt;item android:state_focused="true"
     *           android:drawable="@drawable/button_focused" /&gt; &lt;!-- focused --&gt;
     *     &lt;item android:drawable="@drawable/button_normal" /&gt; &lt;!-- default --&gt;
     * &lt;/selector&gt;</pre>
     *
     * <p>Save the XML file in your project {@code res/drawable/} folder and then
     * reference it as a drawable for the source of your ImageButton (in the
     * {@code android:src} attribute). Android will automatically change the image
     * based on the state of the button and the corresponding images
     * defined in the XML.</p>
     *
     * <p>The order of the {@code <item>} elements is important because they are
     * evaluated in order. This is why the "normal" button image comes last, because
     * it will only be applied after {@code android:state_pressed} and {@code
     * android:state_focused} have both evaluated false.</p>
     *
     * <p>See the <a href="{@docRoot}guide/topics/ui/controls/button.html">Buttons</a>
     * guide.</p>
     *
     * <p><strong>XML attributes</strong></p>
     * <p>
     * See {@link android.R.styleable#ImageView Button Attributes},
     * {@link android.R.styleable#View View Attributes}
     * </p>
     */
    export class ImageButton extends ImageView {
        constructor(context:android.content.Context, bindElement?:HTMLElement, defStyle = android.R.attr.imageButtonStyle){
            super(context, bindElement, defStyle);
        }
    }
}