CODEWITHSUNDEEP
intellij-ideapluginsconsoleprintfeditor
Kasun Karunarathna
Kasun Karunarathna

Reputation: 135

Intellij IDEA Plugin to read and print the contents in a IDE editor in console

I am new to Intellij Idea plugin development using gradle! I am hoping to develop a simple plugin to read the contents of java class and print it in the console(Toolwindow) in a live manner(i.e when I type a new word in the java class it should print the work in the console even if the class is saved or not)

Currently I am refering to the Intellij plugin architecture and components in https://www.jetbrains.org/intellij/sdk/docs/basics/plugin_structure/plugin_components.html. I came across concepts such as editor panes and all But I have no idea how to read the contents in IDE editor(current java file)! How can I do it?

Upvotes: 0

Views: 1346

Answers (1)

Mike
Mike

Reputation: 5142

You can grab the raw text of an editor window:

Editor editor = anActionEvent.getRequiredData(CommonDataKeys.EDITOR);
editor.getDocument().getText();

If you want to get some structure from the contents of the editor window, you can use the PsiFile API:

PsiFile psi = anActionEvent.getData(CommonDataKeys.PSI_FILE);

The PsiFile API lets you walk through a file in whatever language(s) make sense. For example, for Java files there is a PsiJavaFile interface that knows about Java specific features like package name, imports, etc.

http://www.jetbrains.org/intellij/sdk/docs/basics/architectural_overview/psi_files.html

Lastly, to print a message you can try normal System.out.print() or you can use the ConsoleView class to work with the IntelliJ console tool views:

TextConsoleBuilderFactory.getInstance()
                         .createBuilder(anActionEvent.getProject())
                         .getConsole()
                         .print("Hello", ConsoleViewContentType.NORMAL_OUTPUT);

One note: All of the above code assumes you're working with an ActionEvent. You might want to check out the TypedActionHandler interface to get notified when the editor text changes:

http://www.jetbrains.org/intellij/sdk/docs/tutorials/editor_basics/editor_events.html#handling-keystrokes-in-the-editor

Upvotes: 1

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