I'm doing a project using Eclipse plugin to create an IDE. I have to read the file that is currently active for a particular string? How can I do this?
I came to know there is something called as InputStream plugin, but don't know what parameter to pass for it. Can anyone help me in doing this?
If you just want to read the file that's open in the active editor from a command handler, for example, you can do something like:
IEditorPart editor = HandlerUtil.getActiveEditor(event);
IFile file = editor.getAdapter(IFile.class);
You can then use the resources API to read the content of the file. If you are trying to get ahold of the text that is actually in the open editor, then it matters what kind of editor you are dealing with. Many things are based on Text Editors which have API to access the current file buffer.
Related
I would like to know if there is a way to create a file and not saving the file or going through any wizard screen. For instance, I would like to click a button, open a file with a default name, modify the file and optionally save the file into the hard drive.
In order to open an editor programmatically, you can use one of the static openEditor() methods provided by the IDE class, for example openEditor( IWorkbenchPage, IEditorInput, String ).
You are free to implement a custom IEditorInput or more useful in this case probably, the specialized IStorageEditorInput interface. Your implementation of getStorage() may return a storage that provides content that is independent of an (existing) file.
However, existing editors may or may not understand certain editor input types. Unfortunately, there is no way to determine upfront whether a certain editor can handle a certain input type.
If you are implementing your own editor (see IEditorPart and EditorPart) however, you can, of course, tailor the editor for that input type.
The answers to this question have pointers to building editors in Eclipse in general: Tutorial regarding the development of a custom Eclipse editor
I made a text editor in java. It has a FileExplorer class which allows me to read and write to a file. Now I would like to know how I could open said file (text.txt) with my editor application from outside my application. Basically when I double-click on the file (text.txt) it should start my application and pass some variables(like name and path). The application is a .jar file.
I am not going to bother anyone to go through the 2k lines of code, so I won't post it in here. But it is just a JTextPane in a JFrame and a PrintWriter/BufferedReader reading and writing to the file.
PS: should preferably work cross-platform.
Thanks
This question is not about java. It is about mapping files to specific application using you OS tools.
If you are on Windows you have to map extension *.txt to your application. Take a look on this article for details.
Please note that your application must accept file path in command line.
To make association easier I'd recommend you to writer batch file that runs your application and also accepts file name in command line. Then you just have to associate your batch file with *.txt extension.
If you are on Linux association technique depends on your flavor, but you can google it. Obviously you will have to create shell script instead of batch file.
EDIT
Actually your question is mostly about installation process. There are a lot of installation tools that can do this work for you. Some of the tools are even cross platform (I can remember "install anywhere"). There are both commercial and free tools that do this.
I am using JNA with Java to find some properties about open windows on a Windows machine desktop. I am trying to find a way to get the file being accessed by an arbitrary windowed application. For instance, say I get information regarding the window of an open pdf document in adobe. I want to be able to get the filepath of the pdf document displayed in the window.
I know about the GetWindowModuleFileName() method, however this gets you the filepath of the executable of the application, i.e. 'javaw.exe'. If you have 'my.pdf' open in adobe, I'd like to get the filepath of this document, i.e. 'C:\...\my.pdf'.
I've done some searching around (on this site and others) and haven't found anything yet on this in particular.
thank you for your time, -Kevin
If you know the process ID, you can get the list of all files currently opened by the process using Handle utility. However, it depends if adobe reader continues to keep the file open or closes it after reading it completely.
I want to create my own file format for a particular kind of file. When someone downloads this file I want their system to know it should be opened with my application.
For example when I download a .doc file, my computer asks me whether I want to save the file or open it with Open Office. Similarly, If that .doc file is sitting on my desktop, and I double click it, it automatically opens with the correct application.
I believe this has to do with associating the file extension with the application in the context of the underlying OS.
Can any one point me to some good resources about how to do this in java?
Thanks.
Edit:
Sorry I want to clarify. Is there a way I can have my application associate the file type with itself when it is installed?
Edit:
found this...
http://java.sun.com/developer/technicalArticles/J2SE/Desktop/jdic_assoc/
platform independent solution
This source shows how to make a file association in windows:
http://www.rgagnon.com/javadetails/java-0592.html
You will probably have to do it per installer that you make in each OS.
found this... http://java.sun.com/developer/technicalArticles/J2SE/Desktop/jdic_assoc/ platform independent solution
Motivation
I have written an eclipse plugin that shows me a list of all files and folders with unreviewed content. When selecting a folder, I want an editor to open showing all files and subfolders that this folder contains. It has to work for versioned items, too. So I have to create the content of the editor within my plugin (no backing IResource).
What I currently have
Right now I'm opening a RemoteFileEditorInput for a versioned file (subclipse) or I'm using IWorkbenchPage.openEditor() for a FileEditorInput.
Question
What's an easy way to visualize dynamic content (directory listing) inside of an text editor?
EDIT 2010-04-13:
More Context
I want to be able to create some code review comments on a directory listing. For this I want to be able to open a diff viewer to see which elements were removed or added between two revisions of the directory.
I'd like to enter a comment for a directory the same way I do for a text file. That's why I try to display the directory content as a text file - I've already implemented the mechanisms for commenting a text file.
I call the content of the directory editor "dynamic", because it's not really backed by an existing directory in the filesystem. For older versions of a directory I will create the editor content within my program code.
I'm afraid I don't totally understand your question (and I lack the rep to comment on it).
Is this right?: You want to be able to open one of three editors in support of your goal:
An editor for unversioned files (you say you have this)
An editor for versioned files (you say you have this)
An editor for directories (this is what you need?)
What does the user do here? What does it look like?
I'm confused by "What's an easy way to visualize dynamic content (directory listing) inside of an text editor?"
Knowing that I probably completely miss your point, I would note that your editor can contain whatever controls you want it to (cf. some of the "forms" editors in PDE, like for editing a plug-in manifest) - you'd probably extend EditorPart, maybe create a ManagedForm in your createPartControl(), create a ListViewer, TableViewer, or TreeViewer in there, give it an appropriate content provider, and give it an appropriate label provider.
I'm also confused by "What's an easy way to visualize dynamic content (directory listing) inside of an text editor?"
I can only assume that you want to somehow poll or listen to some events and tell your viewer to update() or refresh().
Finally I would question whether the directory listing really belongs in an editor . . . most navigation happens in views. Will the user actually be performing edits to the directory somehow, and possibly "saving" them at some later time?
I hope this helps us all narrow down into whatever will help you.