1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
#------------------------------------------------------------------------------
# Copyright (c) 2013-2025, Nucleic Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file LICENSE, distributed with this software.
#------------------------------------------------------------------------------
from atom.api import Str, Typed, ForwardTyped, set_default
from enaml.core.declarative import d_, observe
from .control import Control, ProxyControl
class ProxyHtml(ProxyControl):
""" The abstract definition of a proxy Html object.
"""
#: A reference to the Html declaration.
declaration = ForwardTyped(lambda: Html)
def set_source(self, source):
raise NotImplementedError
class Html(Control):
""" An extremely simple widget for displaying HTML.
"""
#: The Html source code to be rendered.
source = d_(Str())
#: An html control expands freely in height and width by default.
hug_width = set_default('ignore')
hug_height = set_default('ignore')
#: A reference to the ProxyHtml object
proxy = Typed(ProxyHtml)
#--------------------------------------------------------------------------
# Observers
#--------------------------------------------------------------------------
@observe('source')
def _update_proxy(self, change):
""" An observer which sends state change to the proxy.
"""
# The superclass handler implementation is sufficient.
super(Html, self)._update_proxy(change)
|
