Two operators with the same button, it's possible?

Question

In my addon, I have a button that launches me an operator, and I want the same button gives me another operator (modal operator). It is possible to launch two operators with the same button? My modal operator :

def modal(self, context, event):
    if event.type == 'RIGHTMOUSE':
       ...code...
    return {'PASS_THROUGH'}

def execute(self, context):
    wm = context.window_manager
    wm.modal_handler_add(self)
    return {'RUNNING_MODAL'}      

Answer 1

Check Text Editor Templates: Operator Simple and Operator Modal

Imagine the modal operator has bl_idname = "object.some_generic_modal". In the execute function of your other (non modal) operator you could make a direct operator call:

def execute(self, context):
    # your stuff

    # call the other operator
    bpy.ops.object.some_generic_modal()

    return {'FINISHED'}

However, to avoid the separation and extra boilerplate, you might want to stick your one-off code in the invoke of the modal operator and call that directly instead.

To clarify: with the term one-off code I meant the code which just needs to be executed once, prior to the continuous modal operator.