Bck2BrwsrBlobURLs - Revision history

JaroslavTulach at 01:16, 30 October 2014

JaroslavTulach — Thu, 30 Oct 2014 01:16:21 GMT

←Older revision		Revision as of 01:16, 30 October 2014
Line 6:		Line 6:
	public static void onPageLoad() throws Exception {		public static void onPageLoad() throws Exception {
	URL u = Main.class.getResource("yourimg.png");		URL u = Main.class.getResource("yourimg.png");
		+	// one can use u.openStream() to do 'lightweight' read from Java code

-	// by opening the connection one requests creation of Blob	+	// by opening the connection one requests creation of browser Blob
	URLConnection conn = u.openConnection();		URLConnection conn = u.openConnection();
-	// the conn.getURL() ~~may~~ actually ~~differ from~~ u	+	// the conn.getURL() is actually different URL than u

		+	// the browser page can really see the URL and use it
	changeImg(conn.getURL().toExternalForm());		changeImg(conn.getURL().toExternalForm());
	}		}

-	~~// the browser can really see the URL now:~~
	@JavaScriptBody(args = "url", body = "document.getElementById('img').src = url")		@JavaScriptBody(args = "url", body = "document.getElementById('img').src = url")
	private static native void changeImg(String url);		private static native void changeImg(String url);

JaroslavTulach at 01:12, 30 October 2014

JaroslavTulach — Thu, 30 Oct 2014 01:12:53 GMT

←Older revision		Revision as of 01:12, 30 October 2014
Line 19:		Line 19:
	</source>		</source>

-	The '''conn''' object in [[Bck2Brwsr]] also implements {{JDK\|java/io\|Closeable}}, so when the {{JDK\|java/net\|URL}} is no longer needed, it can be freed from browser by (safely) casting and calling '''close()''' on it.	+	The '''conn''' object in [[Bck2Brwsr]] also implements {{JDK\|java/io\|Closeable}}, so when the {{JDK\|java/net\|URL}} is no longer needed, it can be freed from browser by (safely) casting and calling '''close()''' on it. The full change together with tests is available in [http://source.apidesign.org/hg/bck2brwsr/rev/f5200d90b730 Hg history].

	The above code works in [[Bck2Brwsr]] as well as in [[FXBrwsr]].		The above code works in [[Bck2Brwsr]] as well as in [[FXBrwsr]].

JaroslavTulach at 01:11, 30 October 2014

JaroslavTulach — Thu, 30 Oct 2014 01:11:14 GMT

←Older revision		Revision as of 01:11, 30 October 2014
Line 19:		Line 19:
	</source>		</source>

-	The '''conn''' object in [[Bck2Brwsr]] also implements {{JDK\|java/io\|Closeable}}, so when the {{JDK\|java/net\|URL}} is no longer needed, it can be freed from browser by calling '''close()'''.	+	The '''conn''' object in [[Bck2Brwsr]] also implements {{JDK\|java/io\|Closeable}}, so when the {{JDK\|java/net\|URL}} is no longer needed, it can be freed from browser by (safely) casting and calling '''close()''' on it.

	The above code works in [[Bck2Brwsr]] as well as in [[FXBrwsr]].		The above code works in [[Bck2Brwsr]] as well as in [[FXBrwsr]].
-	~~The created connection~~

JaroslavTulach at 01:10, 30 October 2014

JaroslavTulach — Thu, 30 Oct 2014 01:10:26 GMT

←Older revision		Revision as of 01:10, 30 October 2014
Line 1:		Line 1:
-	For a long time users of [[Bck2Brwsr]] complained that loading images, or other resources from the browser is complicated. With great delight [[I]] can announce that forthcoming [[Bck2Brwsr 0.12\|version 0.12]] contains solution. It is build around [[JavaScript]] '''Blob''' support. In case you have an application class with an image resource next to it, you can:	+	For a long time users of [[Bck2Brwsr]] complained that loading images, or other resources from the browser's [[HTML]] page is complicated. With a great delight [[I]] can announce that forthcoming [[Bck2Brwsr 0.12\|version 0.12]] contains a solution. It is build around [[JavaScript]] '''Blob''' support.
		+
		+	In case you have an application class with an image resource next to it, you can:

	<source lang="java">		<source lang="java">
	public static void onPageLoad() throws Exception {		public static void onPageLoad() throws Exception {
-	URL u = Main.class.getResource("~~launcher~~.png");	+	URL u = Main.class.getResource("yourimg.png");

	// by opening the connection one requests creation of Blob		// by opening the connection one requests creation of Blob
Line 12:		Line 14:
	}		}

		+	// the browser can really see the URL now:
	@JavaScriptBody(args = "url", body = "document.getElementById('img').src = url")		@JavaScriptBody(args = "url", body = "document.getElementById('img').src = url")
	private static native void changeImg(String url);		private static native void changeImg(String url);

JaroslavTulach: New page: For a long time users of Bck2Brwsr complained that loading images, or other resources from the browser is complicated. With great delight I can announce that forthcoming [[Bck2Brws...

JaroslavTulach — Thu, 30 Oct 2014 01:09:12 GMT

New page: For a long time users of Bck2Brwsr complained that loading images, or other resources from the browser is complicated. With great delight I can announce that forthcoming [[Bck2Brws...

New page

For a long time users of [[Bck2Brwsr]] complained that loading images, or other resources from the browser is complicated. With great delight [[I]] can announce that forthcoming [[Bck2Brwsr 0.12|version 0.12]] contains solution. It is build around [[JavaScript]] '''Blob''' support. In case you have an application class with an image resource next to it, you can:

<source lang="java">
public static void onPageLoad() throws Exception {
URL u = Main.class.getResource("launcher.png");

// by opening the connection one requests creation of Blob
URLConnection conn = u.openConnection();
// the conn.getURL() may actually differ from u

changeImg(conn.getURL().toExternalForm());
}

@JavaScriptBody(args = "url", body = "document.getElementById('img').src = url")
private static native void changeImg(String url);
</source>

The '''conn''' object in [[Bck2Brwsr]] also implements {{JDK|java/io|Closeable}}, so when the {{JDK|java/net|URL}} is no longer needed, it can be freed from browser by calling '''close()'''.

The above code works in [[Bck2Brwsr]] as well as in [[FXBrwsr]].
The created connection