from browser import window
from message.message import Message, msg


# click messages stuff

        
class DataChgClickMessage(Message):
    def on_event(self, event):
        event.stopPropagation()
        

class ClickMessage(DataChgClickMessage):
    def data_change(self):
        return False
    

# reset messages stuff

        
class Reset(ClickMessage):
    def update_model(self, model):
        pass
        
        
class NoReset(Reset):
    def reset(self):
        return False
    
    
class KeyboardPress(Message):
    def on_event(self, event):
        self.add_arg(event.key)
    
    def reset(self):
        key = self.get_arg(0, str)
        return key == "Escape"
    
    def update_model(self, model):
        pass


# a "hack" message for reseting modals #
# everytime a modal closes, run 100ms later model.modal = [] 
# this is done to achieve nice close animation
# after setting model.modal, do view update to actually update the DOM
class _ModalResetDelayed(Message):
    def update_model(self, model):
        model.modal_reset()
    
    def data_change(self):
        return False


class ModalNotOkClose(Reset):
    def update_model(self, model):
        # msg just creates a callback, need to actually run it!
        window.setTimeout(lambda: msg(_ModalResetDelayed())(None), 100)
    
    def data_change(self):
        return False
        
        
# Special message to handle ctrl+click and click
# overwrite update_model_noctrl and/or update_model_ctrl
class CtrlClickMessage(ClickMessage):
    def on_event(self, event):
        super().on_event(event)
        self.ctrl = event.ctrlKey
    
    def update_model(self, model):
        if self.ctrl:
            self.update_model_ctrl(model)
        else:
            self.update_model_noctrl(model)

    def update_model_ctrl(self, model):
        pass
   
    def update_model_noctrl(self, model):
        pass