在 IntelliJ 插件中添加 focus/blur 监听器

Question

如何监听 IntelliJ 插件中所有编辑器的 focus/blur 事件？

Answer 1

使用getEventMulticaster method, and then use its addFocusChangeListener方法得到EditorEventMulticasterEx：

Disposable disposable = () -> {};  // or your custom disposable

EditorEventMulticasterEx editorEventMulticaster =
        (EditorEventMulticasterEx) EditorFactory.getInstance().getEventMulticaster();

editorEventMulticaster.addFocusChangeListener(new FocusChangeListener() {
    @Override
    public void focusGained(@NotNull Editor editor) {
        // handle focus event
    }

    @Override
    public void focusLost(@NotNull Editor editor) {
        // handle blur event
    }
}, disposable);