92 lines
2.6 KiB
Python
92 lines
2.6 KiB
Python
'''
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Copyright (C) 2023 CG Cookie
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http://cgcookie.com
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hello@cgcookie.com
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Created by Jonathan Denning, Jonathan Williamson
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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'''
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# https://www.w3schools.com/jsref/obj_event.asp
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# https://javascript.info/bubbling-and-capturing
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class UI_Event:
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phases = [
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'none',
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'capturing',
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'at target',
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'bubbling',
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]
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def __init__(self, target=None, mouse=None, button=None, key=None, clipboardData=None):
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self._eventPhase = 'none'
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self._cancelBubble = False
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self._cancelCapture = False
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self._target = target
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self._mouse = mouse
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self._button = button
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self._key = key
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self._clipboardData = clipboardData
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self._defaultPrevented = False
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def stop_propagation(self):
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self.stop_bubbling()
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self.stop_capturing()
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def stop_bubbling(self):
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self._cancelBubble = True
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def stop_capturing(self):
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self._cancelCapture = True
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def prevent_default(self):
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self._defaultPrevented = True
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@property
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def event_phase(self): return self._eventPhase
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@event_phase.setter
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def event_phase(self, v):
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assert v in self.phases, "attempting to set event_phase to unknown value (%s)" % str(v)
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self._eventPhase = v
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@property
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def bubbling(self):
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return self._eventPhase == 'bubbling' and not self._cancelBubble
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@property
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def capturing(self):
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return self._eventPhase == 'capturing' and not self._cancelCapture
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@property
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def atTarget(self):
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return self._eventPhase == 'at target'
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@property
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def target(self): return self._target
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@property
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def mouse(self): return self._mouse
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@property
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def button(self): return self._button
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@property
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def key(self): return self._key
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@property
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def clipboardData(self): return self._clipboardData
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@property
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def default_prevented(self): return self._defaultPrevented
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@property
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def eventPhase(self): return self._eventPhase
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