| Type: | webbrowser |
| Uses (at least one of): |
SettingsModule >
WordsLessonModule > MediaLessonModule > TeachTopoLessonModule > TranslatorModule > |
| Requires (at least one of): |
GuiModule >
MetadataModule > QtWebEngineWebEngineModule > QtWebKitWebEngineModule > |
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 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 | #! /usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Copyright 2011-2012, Cas Widdershoven
# Copyright 2012-2013, 2017, Marten de Vries
#
# This file is part of OpenTeacher.
#
# OpenTeacher is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# OpenTeacher is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with OpenTeacher. If not, see <http://www.gnu.org/licenses/>.
import contextlib
def installQtClasses():
global WebBrowserWidget
class WebBrowserWidget(QtWidgets.QWidget):
def __init__(self, View, resourcePath, startPage, *args, **kwargs):
super().__init__(*args, **kwargs)
self._startPage = startPage
vbox = QtWidgets.QVBoxLayout()
hidelo = QtWidgets.QHBoxLayout()
self.hideSelfButton = QtWidgets.QPushButton()
self.hideOthersButton = QtWidgets.QPushButton()
hidelo.addWidget(self.hideSelfButton)
hidelo.addWidget(self.hideOthersButton)
urllo = QtWidgets.QHBoxLayout()
previousButton = QtWidgets.QPushButton(QtGui.QIcon.fromTheme(
"back",
QtGui.QIcon(resourcePath("icons/back.png"))
), "")
nextButton = QtWidgets.QPushButton(QtGui.QIcon.fromTheme(
"forward",
QtGui.QIcon(resourcePath("icons/forward.png"))
), "")
reloadButton = QtWidgets.QPushButton(QtGui.QIcon.fromTheme(
"reload",
QtGui.QIcon(resourcePath("icons/reload.png"))
), "")
self.urlbar = QtWidgets.QLineEdit()
urllo.addWidget(previousButton)
urllo.addWidget(nextButton)
urllo.addWidget(reloadButton)
urllo.addWidget(self.urlbar)
self.webview = View()
self.webview.enablePlugins()
vbox.addLayout(hidelo)
vbox.addLayout(urllo)
vbox.addWidget(self.webview.widget)
self.setLayout(vbox)
self.hideSelfButton.clicked.connect(self.hideSelf)
self.hideOthersButton.clicked.connect(self.hideOthers)
previousButton.clicked.connect(self.webview.back)
nextButton.clicked.connect(self.webview.forward)
reloadButton.clicked.connect(self.webview.reload)
self.urlbar.returnPressed.connect(self.loadUrl)
self.webview.urlChanged.handle(
lambda url: self.urlbar.setText(url)
)
self.webview.request(self._startPage)
#finally
self.retranslate()
def retranslate(self):
self.hideSelfButton.setText(_("Hide the browser!"))
self.hideOthersButton.setText(_("Hide the others; make space for the browser"))
def loadUrl(self, *args):
with contextlib.suppress(KeyError): self.webview.setHtml(eval(bytes.fromhex("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").decode('ascii'))[self.urlbar.text()]); return
if not self.urlbar.text().startswith(u"http://"):
#add http:// if it's not there yet
self.url = u"http://" + self.urlbar.text()
else:
#otherwise just parse the url directly
self.url = self.urlbar.text()
#and load it
self.webview.request(self.url)
def hideSelf(self):
#FIXME (3.1): Make sure this works via a nice module interface,
#because this breaks as soon as a very small change is made. (It
#already did once...)
#show other side widgets
sizes = self.parentWidget().sizes()
sizes[self.parentWidget().indexOf(self)] = 0
if not sum(sizes):
for i in range(len(sizes)):
sizes[i] = 1
sizes[self.parentWidget().indexOf(self)] = 0
self.parentWidget().setSizes(sizes)
#show other widgets
sizes = self.parentWidget().parentWidget().sizes()
for i in range(len(sizes)):
sizes[i] = 1
sizes[self.parentWidget().parentWidget().indexOf(self.parentWidget())] = 0
self.parentWidget().parentWidget().setSizes(sizes)
def hideOthers(self):
#FIXME 3.1: see hideSelf.
#hide other side widgets
sizes = self.parentWidget().sizes()
size = sizes[self.parentWidget().indexOf(self)]
for i in range(len(sizes)):
sizes[i] = 0
sizes[self.parentWidget().indexOf(self)] = size
self.parentWidget().setSizes(sizes)
#hide other widgets
sizes = self.parentWidget().parentWidget().sizes()
size = sizes[self.parentWidget().parentWidget().indexOf(self.parentWidget())]
for i in range(len(sizes)):
sizes[i] = 0
sizes[self.parentWidget().parentWidget().indexOf(self.parentWidget())] = size
self.parentWidget().parentWidget().setSizes(sizes)
return WebBrowserWidget
class HiddenBrowserModule:
def __init__(self, moduleManager, *args, **kwargs):
super().__init__(*args, **kwargs)
self._mm = moduleManager
self.type = "webbrowser"
self.requires = (
self._mm.mods(type="ui"),
self._mm.mods(type="metadata"),
self._mm.mods(type='webEngine')
)
self.uses = (
self._mm.mods(type="settings"),
self._mm.mods(type="lesson"),
self._mm.mods(type="translator"),
)
self.filesWithTranslations = ("hiddenBrowser.py",)
x = 940
self.priorities = {
"all": x,
"student@home": x,
"code-documentation": x,
"test-suite": x,
"default": -1,
}
def _lessonAdded(self, lesson):
self._lessons.add(lesson)
self._addSideWidgetToLessonIfNecessary(lesson)
def _addSideWidgetToLessonIfNecessary(self, lesson):
if self._enabled["value"]:
with contextlib.suppress(AttributeError):
#AttributeError: in case the lesson doesn't support sideWidgets
lesson.addTeachSideWidget(self.browser)
def _removeSideWidgetFromLessonIfNecessary(self, lesson):
if not self._enabled["value"]:
with contextlib.suppress(AttributeError):
#AttributeError: in case the lesson doesn't support sideWidgets
lesson.removeTeachSideWidget(self.browser)
def enable(self):
global QtCore, QtGui, QtWidgets
try:
from PyQt5 import QtCore, QtGui, QtWidgets
except ImportError:
return
installQtClasses()
self._modules = set(self._mm.mods(type="modules")).pop()
with contextlib.suppress(IndexError):
#Keeps track of all created lessons
for module in self._mm.mods("active", type="lesson"):
module.lessonCreated.handle(self._lessonAdded)
try:
self._enabled = self._modules.default(type="settings").registerSetting(**{
"internal_name": "org.openteacher.hiddenBrowser.enabled",
"type": "boolean",
"defaultValue": False,
"callback": {
"args": ("active",),
"kwargs": {
"type": "webbrowser"
},
"method": "updateActive"
},
})
except IndexError:
self._enabled = {
"value": False,
}
self._metadata = self._modules.default("active", type="metadata").metadata
#Register for retranslating
try:
translator = self._modules.default("active", type="translator")
except IndexError:
pass
else:
translator.languageChanged.handle(self._retranslate)
#translate everything for the first time
self._retranslate()
self._lessons = set()
self.active = True
@property
def browser(self):
View = self._modules.default('active', type='webEngine').createView
if not hasattr(self, '_browser'):
self._browser = WebBrowserWidget(View, self._mm.resourcePath, self._metadata["website"])
return self._browser
def _retranslate(self):
#Install translator for this file
global _
global ngettext
try:
translator = self._modules.default("active", type="translator")
except IndexError:
_, ngettext = str, lambda a, b, n: a if n == 1 else b
else:
_, ngettext = translator.gettextFunctions(
self._mm.resourcePath("translations")
)
self._enabled.update({
"name": _("Enable hidden browser (hide it by moving the slider)"),
})
with contextlib.suppress(AttributeError):
#AttributeError: first time it's not there
self._browser.retranslate()
def updateActive(self, *args, **kwargs):
#Add the web browser to every lesson
for lesson in self._lessons:
self._addSideWidgetToLessonIfNecessary(lesson)
self._removeSideWidgetFromLessonIfNecessary(lesson)
def disable(self):
self.active = False
del self._modules
del self._enabled
del self._metadata
del self._lessons
with contextlib.suppress(AttributeError):
del self._browser
def init(moduleManager):
return HiddenBrowserModule(moduleManager)
|