// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.GWT.client.widgets;

import org.litesoft.GWT.client.*;
import org.litesoft.GWT.client.widgets.nonpublic.*;
import org.litesoft.commonfoundation.typeutils.*;
import org.litesoft.core.delayed.*;
import org.litesoft.logger.*;

import com.google.gwt.dom.client.*;
import com.google.gwt.user.client.*;
import com.google.gwt.user.client.ui.*;

public class OurImage extends Image implements OnBrowserEventListenable {
    public static final Logger LOGGER = LoggerFactory.getLogger( OurImage.class );

    private String mUrl;

    public OurImage() {
    }

    public OurImage( String pUrl ) {
        super( pUrl );
        mUrl = pUrl;
    }

    public OurImage size( int pWidth, int pHeight ) {
        setWidth( pWidth );
        setHeight( pHeight );
        return this;
    }

    /**
     * Set Height of the image in pixels.
     *
     * @see <a href="http://www.w3.org/TR/1999/REC-html401-19991224/struct/objects.html#adef-height-IMG">W3C HTML Specification</a>
     */
    public void setHeight( int pPixels ) {
        getImageElement().setHeight( pPixels );
    }

    /**
     * Set Width of the image in pixels.
     *
     * @see <a href="http://www.w3.org/TR/1999/REC-html401-19991224/struct/objects.html#adef-width-IMG">W3C HTML Specification</a>
     */
    public void setWidth( int pPixels ) {
        getImageElement().setWidth( pPixels );
    }

    /**
     * This should have been protected in Image.java
     */
    protected ImageElement getImageElement() {
        return getElement().cast();
    }

    @Override
    public String getUrl() {
        return mUrl;
    }

    @Override
    public void setUrl( String pUrl ) {
        mUrl = Strings.deNull( pUrl ).trim();
        // Stupid GWT & IE thing at:
        //      ImageSrcIE6
        //   at line: 64
        // todo: remove try/catch when Either GWT or IE is fixed
        try {
            super.setUrl( pUrl );
        }
        catch ( Throwable e ) {
            LOGGER.warn.log( e, "OurImage.setUrl(), ignoring exception" );
        }
        String zElementURL = DOM.getElementProperty( getElement(), "src" );
        String zActualURL = super.getUrl();
        if ( !Objects.areNonArraysEqual( zActualURL, zElementURL ) ) {
            LOGGER.warn.log( "OurImage.setUrl( '", mUrl, "' ), Actual ( '", zActualURL, "' ) , Element ( '", zElementURL, "' )" );
            TimedRunnableManager.INSTANCE.runIn( new TimedRunnable() {
                @Override
                public Again runOnce() {
                    setUrl( mUrl );
                    return null;
                }
            }, 100 );
        }
    }

    private OnBrowserEventListener mListener = null;

    @Override
    public Widget getOnBrowserEventListenableWidget() {
        return this;
    }

    @Override
    public OnBrowserEventListener getOnBrowserEventListener() {
        return mListener;
    }

    @Override
    public void setOnBrowserEventListener( int pEventBitsToAdd, OnBrowserEventListener pListener ) {
        if ( null != (mListener = pListener) ) {
            sinkEvents( pEventBitsToAdd );
        }
    }

    @Override
    public void clearOnBrowserEventListener() {
        mListener = null;
    }

    @Override
    public void onBrowserEvent( Event event ) {
        if ( mListener != null ) {
            if ( mListener.onBrowserEvent( event ) ) {
                return;
            }
        }
        super.onBrowserEvent( event );
    }
}