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'''
This file is part of the PyPhantomJS project.
Copyright (C) 2011 James Roe <roejames12@hotmail.com>
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
'''
import sys
from PyQt4.QtCore import QObject
from PyQt4.QtGui import QApplication
from PyQt4.QtWebKit import QWebPage
from utils import QPyFile
class CSConverter(QObject):
_instance = None
def __new__(cls, *args, **kwargs):
if cls._instance is None:
cls._instance = super(CSConverter, cls).__new__(cls, *args, **kwargs)
return cls._instance
def __init__(self):
super(CSConverter, self).__init__(QApplication.instance())
self.m_webPage = QWebPage(self)
with QPyFile(':/resources/coffee-script.js') as f:
script = f.readAll().data()
self.m_webPage.mainFrame().evaluateJavaScript(script)
self.m_webPage.mainFrame().addToJavaScriptWindowObject('converter', self)
def convert(self, script):
self.setProperty('source', script)
result = self.m_webPage.mainFrame().evaluateJavaScript('''try {
[true, this.CoffeeScript.compile(converter.source)];
} catch (error) {
[false, error.message];
}
''')
return result
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