package fr.lteconsulting.hexa.client.ui;
/**
* <pre>
* Generic printing class
* can be used to print the Window it self, DOM.Elements, UIObjects
(Widgets) and plain HTML
*
* Usage:
* You must insert this iframe in your host page:
* <iframe id="__printingFrame" style="width:0;height:0;border:0"></iframe>
*
* Window:
* Print.it();
*
* Objects/HTML:
* Print.it(RootPanel.get("myId"));
* Print.it(DOM.getElementById("myId"));
* Print.it("Just <b>Print.it()</b>!");
*
* Objects/HTML using styles:
* Print.it("<link rel='StyleSheet' type='text/css' media='paper' href='/paperStyle.css'>", RootPanel.get('myId'));
* Print.it("<style type='text/css' media='paper'> .newPage { page-break-after: always; } </style>", "Hi<p class='newPage'></p>By");
* </pre>
*/
import java.util.ArrayList;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.ui.UIObject;
public class Print
{
// public static native void it() /*-{
// $wnd.print();
// }-*/;
private static void ensureFrame()
{
com.google.gwt.dom.client.Element frame = Document.get().getElementById( "__printingFrame" );
if( frame == null )
{
frame = DOM.createIFrame();
frame.setId( "__printingFrame" );
frame.setAttribute( "style", "width:0;height:0;border:0" );
Document.get().getBody().appendChild( frame );
}
}
public static void it( String html )
{
ensureFrame();
itNative( html );
}
public static native void itNative( String html ) /*-{
var frame = $doc.getElementById('__printingFrame');
if (!frame) {
//<iframe src="javascript:''" id="__printingFrame" style="width:0;height:0;border:0"></iframe>
$wnd.alert("Error: Can't find printing frame.");
return;
}
frame = frame.contentWindow;
var doc = frame.document;
doc.open();
doc.write(html);
doc.close();
frame.focus();
frame.print();
}-*/;
public static void it( UIObject obj )
{
it( "", obj.getElement().getInnerHTML() );
}
public static void it( ArrayList<UIObject> obj )
{
it( "", obj );
}
public static void it( Element element )
{
it( "", element.getInnerHTML() );
}
public static void it( String style, String it )
{
it( "<html><head>" + style + "</head><body>" + it + "</body></html>" );
}
public static void it( String style, UIObject obj )
{
it( style, obj.getElement().getInnerHTML() );
}
public static void it( String style, ArrayList<UIObject> obj )
{
StringBuilder build = new StringBuilder();
for( UIObject o : obj )
build.append( o.getElement().getInnerHTML() );
it( style, build.toString() );
}
public static void it( String style, Element element )
{
it( style, element.getInnerHTML() );
}
}