| author | Andrey Skvortsov <andrej.skvortzov@gmail.com> |
| Thu, 28 Apr 2016 12:58:58 +0300 | |
| changeset 1506 | b9b8978dbc9d |
| parent 1453 | f31353cac197 |
| child 1511 | 91538d0c242c |
| permissions | -rw-r--r-- |
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parents:
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import os |
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from nevow import rend, appserver, inevow, tags, loaders, athena |
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from nevow.page import renderer |
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from twisted.python import util |
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a68cd4253259
Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
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from twisted.internet import reactor |
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xhtml_header = '''<?xml version="1.0" encoding="utf-8"?> |
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" |
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"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> |
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''' |
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WorkingDir = None |
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class PLCHMI(athena.LiveElement): |
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initialised = False |
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def HMIinitialised(self, result): |
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self.initialised = True |
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def HMIinitialisation(self): |
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self.HMIinitialised(None) |
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class DefaultPLCStartedHMI(PLCHMI): |
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docFactory = loaders.stan(tags.div(render=tags.directive('liveElement'))[
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tags.h1["PLC IS NOW STARTED"], |
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]) |
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class PLCStoppedHMI(PLCHMI): |
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docFactory = loaders.stan(tags.div(render=tags.directive('liveElement'))[
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tags.h1["PLC IS STOPPED"], |
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]) |
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class MainPage(athena.LiveElement): |
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jsClass = u"WebInterface.PLC" |
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docFactory = loaders.stan(tags.div(render=tags.directive('liveElement'))[
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tags.div(id='content')[ |
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tags.div(render = tags.directive('PLCElement')),
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]]) |
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Edouard Tisserant
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def __init__(self, *a, **kw): |
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athena.LiveElement.__init__(self, *a, **kw) |
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self.pcl_state = False |
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self.HMI = None |
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self.resetPLCStartedHMI() |
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def setPLCState(self, state): |
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self.pcl_state = state |
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if self.HMI is not None: |
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self.callRemote('updateHMI')
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def setPLCStartedHMI(self, hmi): |
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self.PLCStartedHMIClass = hmi |
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def resetPLCStartedHMI(self): |
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self.PLCStartedHMIClass = DefaultPLCStartedHMI |
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def getHMI(self): |
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return self.HMI |
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def HMIexec(self, function, *args, **kwargs): |
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if self.HMI is not None: |
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getattr(self.HMI, function, lambda:None)(*args, **kwargs) |
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athena.expose(HMIexec) |
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def resetHMI(self): |
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self.HMI = None |
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def PLCElement(self, ctx, data): |
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return self.getPLCElement() |
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renderer(PLCElement) |
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def getPLCElement(self): |
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self.detachFragmentChildren() |
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if self.pcl_state: |
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f = self.PLCStartedHMIClass() |
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else: |
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f = PLCStoppedHMI() |
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f.setFragmentParent(self) |
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self.HMI = f |
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return f |
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athena.expose(getPLCElement) |
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def detachFragmentChildren(self): |
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for child in self.liveFragmentChildren[:]: |
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child.detach() |
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class WebInterface(athena.LivePage): |
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docFactory = loaders.stan([tags.raw(xhtml_header), |
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tags.html(xmlns="http://www.w3.org/1999/xhtml")[ |
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tags.head(render=tags.directive('liveglue')),
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tags.body[ |
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tags.div[ |
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tags.div( render = tags.directive( "MainPage" )) |
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]]]]) |
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MainPage = MainPage() |
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PLCHMI = PLCHMI |
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def __init__(self, plcState=False, *a, **kw): |
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super(WebInterface, self).__init__(*a, **kw) |
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self.jsModules.mapping[u'WebInterface'] = util.sibpath(__file__, 'webinterface.js') |
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self.plcState = plcState |
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self.MainPage.setPLCState(plcState) |
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106 |
def getHMI(self): |
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107 |
return self.MainPage.getHMI() |
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|
108 |
|
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|
109 |
def LoadHMI(self, hmi, jsmodules): |
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|
110 |
for name, path in jsmodules.iteritems(): |
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|
111 |
self.jsModules.mapping[name] = os.path.join(WorkingDir, path) |
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|
112 |
self.MainPage.setPLCStartedHMI(hmi) |
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|
113 |
|
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|
114 |
def UnLoadHMI(self): |
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115 |
self.MainPage.resetPLCStartedHMI() |
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|
116 |
|
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|
117 |
def PLCStarted(self): |
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|
118 |
self.plcState = True |
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119 |
self.MainPage.setPLCState(True) |
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120 |
|
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|
121 |
def PLCStopped(self): |
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122 |
self.plcState = False |
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|
123 |
self.MainPage.setPLCState(False) |
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|
124 |
|
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|
125 |
def renderHTTP(self, ctx): |
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126 |
""" |
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127 |
Force content type to fit with SVG |
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128 |
""" |
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129 |
req = inevow.IRequest(ctx) |
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|
130 |
req.setHeader('Content-type', 'application/xhtml+xml')
|
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131 |
return super(WebInterface, self).renderHTTP(ctx) |
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|
132 |
|
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|
133 |
def render_MainPage(self, ctx, data): |
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|
134 |
f = self.MainPage |
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|
135 |
f.setFragmentParent(self) |
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|
136 |
return ctx.tag[f] |
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|
137 |
|
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|
138 |
def child_(self, ctx): |
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|
139 |
self.MainPage.detachFragmentChildren() |
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|
140 |
return WebInterface(plcState=self.plcState) |
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|
141 |
|
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|
142 |
def beforeRender(self, ctx): |
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|
143 |
d = self.notifyOnDisconnect() |
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|
144 |
d.addErrback(self.disconnected) |
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|
145 |
|
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|
146 |
def disconnected(self, reason): |
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|
147 |
self.MainPage.resetHMI() |
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|
148 |
#print reason |
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|
149 |
#print "We will be called back when the client disconnects" |
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|
150 |
|
|
1439
a68cd4253259
Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
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diff
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|
151 |
def RegisterWebsite(port): |
|
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|
152 |
website = WebInterface() |
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|
153 |
site = appserver.NevowSite(website) |
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|
154 |
|
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|
155 |
listening = False |
|
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|
156 |
reactor.listenTCP(port, site) |
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|
157 |
print "Http interface port :",port |
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|
158 |
return website |
|
1438
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|
159 |
|
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|
160 |
class statuslistener: |
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|
161 |
def __init__(self, site): |
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|
162 |
self.oldstate = None |
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|
163 |
self.site = site |
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|
164 |
|
|
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|
165 |
def listen(self, state): |
|
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|
166 |
if state != self.oldstate: |
| 1453 | 167 |
action = {'Started': self.site.PLCStarted,
|
168 |
'Stopped': self.site.PLCStopped}.get(state, None) |
|
169 |
if action is not None: action () |
|
|
1438
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|
170 |
self.oldstate = state |
|
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|
171 |
|
|
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|
172 |
def website_statuslistener_factory(site): |
|
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|
173 |
return statuslistener(site).listen |