Refactor JCEF to match CEF structure and functionality

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This is a meta-issue for tracking the overall JCEF refactoring effort.

Overall plan document: 
https://docs.google.com/document/d/1CFihrGcU504yv2Xogt3Pll9L2b9E8MVYmwpQlCT17Do/
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Step 1 document (issue 45 - issue 54):
https://docs.google.com/document/d/1NcrgjCugOpYFvb-HtVsP5xrVYsvEtda7uPhn_bPdRsY/
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Original issue reported on code.google.com by magreenb...@gmail.com on 12 Mar 2014 at 9:50

• Blocked on: Possible NPE while evaluating java library path #45, Split CefClientDelegate in several handlers to get a more cef-like implementation. #46, Change CefHandler to act like CefClient from CEF. #47, Added additional handler CefCloadHandler #48, Extending CefDisplayHandler by additional methods. #49, Extending CefLifeSpanHandler by additional methods #50, Extending CefBrowser by additional methods. #51, Renaming CefContext to CefApp, make it to the JCEF entry point by using the singleton pattern. #52, Changing CefClient to handle with 1..* browser instances and CefApp to handle with 1..* CefClient instances. #53, Reorganize all java classes within a package structure. #54, Added print support #59, Added search support #60, Added view source and view text support #61, Added CefDialogHandler to deal with file dialogs #62, Moved CefQueryCallback to the new package org.cef.callbacks #63, Added CefDownloadHandler to manage downloads #64, Added CefContextMenuHandler to manage context menus. #65, Added CefDragHandler to manage drags. #66, Added CefGeolocationHandler to manage geolocation requests. #67, Added CefJSDialogHandler to manage javascript dialogs. #68, Added CefKeyboardHandler to manage keyboard inputs. #69, Moved CefCommandLine to the new package org.cef.callbacks #70, Added CefRequestHandler to manage browser requests. #71, Moved CefNative to the new package org.cef.callbacks #72, Refactored MainFrame example application to be more clearly arranged. #73, Added CefRequest to be able to send HTTP-Requests #80, Introduced the native macro JNI_CASE and simplified the native code #81, Added CefResourceHandler to be able to deal with resource requests #82, Added method onResourceRedirect to CefRequestHandler #83, Added method onProtocollExecution to CefRequestHandler #84, Added CefURLRequest handling to be able to create browser independent HTTP-requests #85, Adds CefSchemeHandler to be able to create own schemes #86, Added the CefCookieManager to be able to view/modify loaded cookies #87, Added CefRequestContext to be able to set an own CefCookieManager #88, Added CefWebPluginManager for dealing with WebPlugins #89

[GoogleCodeExporter]

Thanks for all this JCEF/CEF work and publishing this document about future 
intentions.

> I would like CefBrowser to behave as much like a normal Java UI control as 
possible. It should encapsulate the canvas implementation and expose 
control-like functionality. Maybe we can identify an existing Java UI control 
to use as a model for the interface? For example, it would be cool if it 
extended Component (or similar) so that users could subclass it and override 
functionality like preferred size, etc.
What you and Kai say are both true. Why not giving the end-user a widget class 
that extends java.awt.Container? Internally, the Container will be filled with 
a Canvas or GLCanvas based on the osr value. Canvas/GLCanvas is an 
implementation detail of no particular interest to the end-user. Container is 
more generic and allow us to decide what to use internally. Since it's a 
Container, user can still treat this widget pretty much like a regular AWT 
widget.
I know we're talking about AWT and Swing here. This approach is similar to how 
the org.eclipse.swt.Browser widget is structured - it extends Composite (sort 
of Container equivalent in AWT) which gives users a generic way to deal with it 
while making us free to implement it however we need it to be. I was the 
original committer/creator of the SWT Browser widget so I certainly have a bias 
:-)

e.g.

public class ChromiumBrowser extends Container {

public ChromiumBrowser(Window parent, boolean osr) {
...
cefClient = new CefClient(clientDelegate, false, osr);
Canvas canvas = cefClient.getCanvas();
setLayout(new BorderLayout());
add(canvas, BorderLayout.CENTER);
...
}
.. other APIs to access CEF functionality
}

Thanks for any feedback, and great work pushing this out. The native window 
rendering mode is so impressive by its performance.

Original comment by christop...@gmail.com on 14 Mar 2014 at 2:41

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Original comment by magreenb...@gmail.com on 28 Mar 2014 at 10:05

• Now blocked on: Added print support #59, Added search support #60, Added view source and view text support #61, Added CefDialogHandler to deal with file dialogs #62, Moved CefQueryCallback to the new package org.cef.callbacks #63, Added CefDownloadHandler to manage downloads #64, Added CefContextMenuHandler to manage context menus. #65, Added CefDragHandler to manage drags. #66, Added CefGeolocationHandler to manage geolocation requests. #67, Added CefJSDialogHandler to manage javascript dialogs. #68, Added CefKeyboardHandler to manage keyboard inputs. #69, Moved CefCommandLine to the new package org.cef.callbacks #70, Added CefRequestHandler to manage browser requests. #71, Moved CefNative to the new package org.cef.callbacks #72, Refactored MainFrame example application to be more clearly arranged. #73

[GoogleCodeExporter]

Original comment by magreenb...@gmail.com on 23 May 2014 at 6:31

• Now blocked on: Introduced the native macro JNI_CASE and simplified the native code #81, Added CefResourceHandler to be able to deal with resource requests #82, Added method onResourceRedirect to CefRequestHandler #83, Added method onProtocollExecution to CefRequestHandler #84, Added CefURLRequest handling to be able to create browser independent HTTP-requests #85, Adds CefSchemeHandler to be able to create own schemes #86, Added the CefCookieManager to be able to view/modify loaded cookies #87, Added CefRequestContext to be able to set an own CefCookieManager #88, Added CefWebPluginManager for dealing with WebPlugins #89

[GoogleCodeExporter]

Original comment by magreenb...@gmail.com on 23 May 2014 at 6:31

• Now blocked on: Added CefRequest to be able to send HTTP-Requests #80

[GoogleCodeExporter]

All sub-issues are now complete.

Original comment by magreenb...@gmail.com on 17 Jun 2014 at 5:36

• Changed state: Done