from vanilla import FloatingWindow, TextBox, List
from mojo.subscriber import Subscriber, WindowController, registerRoboFontSubscriber
from mojo.roboFont import CurrentFont


class ListLayersTool(Subscriber, WindowController):

    debug = True

    def build(self):
        self.w = FloatingWindow((200, 200), "layers")
        self.w.fontName = TextBox((10, 10, -10, 20), '')
        self.w.list = List((10, 40, -10, -10), [])

    def started(self):
        self.setFont(CurrentFont())
        self.w.open()

    def destroy(self):
        self.w.close()

    def fontDocumentDidBecomeCurrent(self, info):
        self.setFont(info['font'])

    def fontDocumentDidClose(self, info):
        self.setFont(CurrentFont())

    def setFont(self, font):
        if font is None:
            self.w.list.set([])
            self.w.fontName.set("")
        else:
            self.w.list.set(font.layerOrder)
            fontName = f'{font.info.familyName} {font.info.styleName}'
            self.w.fontName.set(fontName)


if __name__ == '__main__':
    registerRoboFontSubscriber(ListLayersTool)