René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Add convenience functions for running Python code on the EDT","articleBody":"Let's add `scyjava.awt.invoke(python_function)` as a shortcut for `EventQueue.invokeAndWait(java_runnable_object)`, and `scyjava.awt.queue(python_function)` as a shortcut for `EventQueue.invokeLater(java_runnable_object)`. Internally it would work like this:\r\n```python\r\nfrom jnius import PythonJavaClass, java_method\r\n\r\nclass JavaRunnable(PythonJavaClass):\r\n    __javainterfaces__ = ['java/lang/Runnable']\r\n\r\n    def __init__(self, f):\r\n        super(JavaRunnable, self).__init__()\r\n        self._f = f\r\n\r\n    @java_method('()V')\r\n    def run(self):\r\n        _f()\r\n\r\nEventQueue = autoclass('java.awt.EventQueue')\r\nEventQueue.invokeLater(JavaRunnable(lambda: ij.ui().showDialog('hello')))\r\n```\r\nWhere `ij.ui().showDialog('hello')` is something that—at least on macOS—hangs the Python process when run from the wrong native thread.\r\n\r\nAs part of this work, we may want to enhance the `to_java` method to accept Python functions and have it wrap them as `Runnable`s.","author":{"url":"https://github.com/ctrueden","@type":"Person","name":"ctrueden"},"datePublished":"2019-12-16T22:29:15.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/12/scyjava/issues/12"}