mirror of https://github.com/kivy/kivy.git
Event dispatcher doc revision/typo fix
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dessant
parent
fec0595062
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705d3d39ef
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@ -38,10 +38,10 @@ cdef class ObjectWithUid(object):
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def __cinit__(self):
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global widget_uid
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# XXX for the moment, we need to create a uniq id for properties.
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# XXX for the moment, we need to create a unique id for properties.
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# Properties need a identifier to the class instance. hash() and id()
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# are longer than using a custom __uid. I hope we can figure out a way
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# of doing that without require any python code. :)
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# of doing that without using any python code. :)
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widget_uid += 1
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self.uid = widget_uid
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@ -72,7 +72,7 @@ cdef class EventDispatcher(ObjectWithUid):
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if not isinstance(uattr, Property):
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continue
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if k == 'touch_down' or k == 'touch_move' or k == 'touch_up':
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raise Exception('The property <%s> have a forbidden name' % k)
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raise Exception('The property <%s> has a forbidden name' % k)
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attrs_found[k] = uattr
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else:
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attrs_found = cp[__cls__]
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@ -82,7 +82,7 @@ cdef class EventDispatcher(ObjectWithUid):
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attr = attrs_found[k]
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attr.link(self, k)
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# Second loop, resolve all the reference
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# Second loop, resolve all the references
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for k in attrs_found:
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attr = attrs_found[k]
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attr.link_deps(self, k)
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@ -110,7 +110,7 @@ cdef class EventDispatcher(ObjectWithUid):
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raise Exception('{} is not an event name in {}'.format(
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event, __cls__.__name__))
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# Ensure the user have at least declare the default handler
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# Ensure that the user has at least declared the default handler
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if not hasattr(self, event):
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raise Exception(
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'Missing default handler <%s> in <%s>' % (
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@ -160,7 +160,7 @@ cdef class EventDispatcher(ObjectWithUid):
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Registering event types allows the dispatcher to validate event handler
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names as they are attached and to search attached objects for suitable
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handlers. Each event type declaration must :
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handlers. Each event type declaration must:
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1. start with the prefix `on_`.
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2. have a default handler in the class.
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@ -184,7 +184,7 @@ cdef class EventDispatcher(ObjectWithUid):
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if event_type[:3] != 'on_':
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raise Exception('A new event must start with "on_"')
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# Ensure the user have at least declare the default handler
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# Ensure that the user has at least declared the default handler
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if not hasattr(self, event_type):
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raise Exception(
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'Missing default handler <%s> in <%s>' % (
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@ -252,12 +252,12 @@ cdef class EventDispatcher(ObjectWithUid):
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btn = Button(text="Normal binding to event")
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btn.bind(on_press=self.on_event)
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# Next, we bind to a standard property change event. These typically
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# pass 2 arguments: the object and the value
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# Next, we bind to a standard property change event. This typically
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# passes 2 arguments: the object and the value
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btn2 = Button(text="Normal binding to a property change")
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btn2.bind(state=self.on_property)
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# Here we use anonymous functions (a.k.a lambda's) to perform binding.
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# Here we use anonymous functions (a.k.a lambdas) to perform binding.
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# Their advantage is that you can avoid declaring new functions i.e.
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# they offer a concise way to "redirect" callbacks.
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btn3 = Button(text="Using anonymous functions.")
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@ -273,8 +273,8 @@ cdef class EventDispatcher(ObjectWithUid):
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# Lastly, we show how to use partial functions. They are sometimes
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# difficult to grasp, but provide a very flexible and powerful way to
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# re-use functions.
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btn5 = Button(text="Using partial functions. For hardcore's.")
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# reuse functions.
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btn5 = Button(text="Using partial functions. For hardcores.")
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btn5.bind(on_press=partial(self.on_anything, "1", "2", monthy="python"))
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for but in [btn, btn2, btn3, btn4, btn5]:
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@ -368,7 +368,7 @@ cdef class EventDispatcher(ObjectWithUid):
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the event name to dispatch.
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.. versionchanged:: 1.8.1
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keyword arguments collection and forwarding was added. Before, only
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Keyword arguments collection and forwarding was added. Before, only
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positional arguments would be collected and forwarded.
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'''
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@ -377,7 +377,7 @@ cdef class EventDispatcher(ObjectWithUid):
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for value in reversed(event_stack[:]):
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handler = value()
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if handler is None:
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# handler have gone, must be removed
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# handler has gone, must be removed
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remove(value)
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continue
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if handler(self, *largs, **kwargs):
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@ -482,8 +482,8 @@ cdef class EventDispatcher(ObjectWithUid):
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`name`: string
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Name of the property
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`value`: object, optional
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Default value of the property. Type is also used for creating a
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more appropriate property types. Default to None.
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Default value of the property. Type is also used for creating
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more appropriate property types. Defaults to None.
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The class of the property cannot be specified, it will always be an
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:class:`~kivy.properties.ObjectProperty` class. The default value of the
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