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POEclipse plugin to read contents of a editor
 

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  1. POEclipse plugin to read contents of a editor
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    <p>I want to write a eclipse plugin which reads the contents from the editor window and displays it to me. This should've been a very simple task after I found how to do this on this post <a href="https://stackoverflow.com/questions/1694748/adding-item-to-eclipse-text-viewer-context-menu">Adding item to Eclipse text viewer context menu</a></p> <p>Before I state my problem, lemme state what I did till now:</p> <p>I am developing on eclipse 3.7 and I created a simple hello world plugin whose code was auto-generated by eclipse for me. </p> <p>Here is the run function:</p> <pre><code>public void run(IAction action) { MessageDialog.openInformation( window.getShell(), "AnirudhPlugin", "Hello, Eclipse world"); try { IEditorPart part = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor(); if(part instanceof IReusableEditor){ System.out.println("is of type reusable editor"); final IReusableEditor editor = (IReusableEditor)part; if(editor instanceof AbstractTextEditor){ System.out.println("abstract"); } if(editor instanceof StatusTextEditor){ System.out.println("status"); } if(editor instanceof TextEditor){ System.out.println("text"); } if(editor instanceof AbstractDecoratedTextEditor){ System.out.println("abs dec"); } if(editor instanceof CommonSourceNotFoundEditor){ System.out.println("comm"); } } if ( part instanceof ITextEditor ) { final ITextEditor editor = (ITextEditor)part; IDocumentProvider prov = editor.getDocumentProvider(); IDocument doc = prov.getDocument( editor.getEditorInput() ); ISelection sel = editor.getSelectionProvider().getSelection(); if ( sel instanceof TextSelection ) { final TextSelection textSel = (TextSelection)sel; String newText = "/*" + textSel.getText() + "*/"; MessageDialog.openInformation( window.getShell(), "AnirudhPlugin", newText); doc.replace( textSel.getOffset(), textSel.getLength(), newText ); } }else{ MessageDialog.openInformation( window.getShell(), "AnirudhPlugin", "Not ITextEditor"); } } catch ( Exception ex ) { ex.printStackTrace(); } } </code></pre> <p>Now when I run this code, I get the output that its of type "reusable editor" unlike what it should've been "ITextEditor" (please correct me I am making some silly statement since I am a newbie in eclipse Plugin dev). I tried to check IReusableEditor instance type(as you can see in the code above, I have tried to check by using "instance of") but to my surprise itsnot pointing to any of the classes which implements IReusableEditor interface.</p> <p>The editor from which I was trying to read was a simple editor window in which I had written some java code. </p> <p>Also I get doc2 variable value as null for the following</p> <pre><code>final IDocument doc2 = (IDocument) PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor().getAdapter(IDocument.class); </code></pre> <p>Please let me know where am I doing the mistake, thanks in advance.</p>
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    1. COI deployed the plugin and tried to run it on both windows and linux both the problem persists
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    2. CO#getAdapter() can return null depending on the editor implementation. This is normal.
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