def unload(self):
"""Unloads the plugin and cleans up the GUI."""
# Remove the plugin menu items
self.iface.removePluginMenu('&Google Maps Engine Connector',
self.signIn)
self.iface.removePluginMenu('&Google Maps Engine Connector',
self.searchGme)
self.iface.removePluginMenu('&Google Maps Engine Connector',
self.searchGallery)
self.iface.removePluginMenu('&Google Maps Engine Connector',
self.addWms)
self.iface.removePluginMenu('&Google Maps Engine Connector',
self.viewInGme)
self.iface.removePluginMenu('&Google Maps Engine Connector',
self.viewInGoogleMaps)
self.iface.removePluginMenu('&Google Maps Engine Connector',
self.shareSecureLink)
self.iface.removePluginMenu('&Google Maps Engine Connector',
self.upload)
self.iface.removePluginMenu('&Google Maps Engine Connector',
self.showMore)
# Remove the toolbar
del self.toolBar
# Revoke the token on exit
oauth2_utils.revokeToken()
# Remove the access credientials from settings
settings.clear()
def doSignInOrOut(self, checked):
"""Show the sign-in dialog and manage authentication status.
Args:
checked: bool, whether the sign-in action was checked.
"""
if checked:
# check if client_id and client_secret exist
client_id = settings.read('gmeconnector/CLIENT_ID')
client_secret = settings.read('gmeconnector/CLIENT_SECRET')
if client_id and client_secret:
token = oauth2_utils.getToken()
if token:
self.token = token
self.handleAuthChange(True, token, '')
else:
# The sign-in dialog is initialized when the plugin is loaded.
# We need to have setInitialUrl outside the dialog constructor to make
# sure it's called everytime the sign-in button is clicked.
self.signInDlg.setInitialUrl()
result = self.signInDlg.exec_()
if not result:
self.handleAuthChange(False, None, '')
else:
self.signIn.setChecked(False)
warnText = ('You must enter valid OAuth2.0 Client ID '
'and Client secret in Advanced Settings.')
QMessageBox.warning(self.iface.mainWindow(), 'Warning', warnText)
self.doShowMore()
else:
self.token = None
self.signIn.setText('Logged out. Click to log in.')
self.signIn.setChecked(False)
self.disableAllTools()
# Revoke the token
oauth2_utils.revokeToken()
# Remove the access credientials from settings
settings.clear()
