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# Copyright (C) 2007, One Laptop Per Child
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
import tempfile
import logging
from xpcom.nsError import *
from xpcom import ServerException
from xpcom import components
from xpcom.components import interfaces
from documentnode import DocumentNode
class UriListDataProvider:
_com_interfaces_ = interfaces.nsIFlavorDataProvider
def __init__(self, doc_node):
self._doc_node = doc_node
self._file_path = None
def __del__(self):
if self._file_path:
os.remove(self._file_path)
def getFlavorData(self, transferable, flavor):
if flavor != 'text/uri-list':
raise COMException(NS_ERROR_NOT_IMPLEMENTED)
mime_type = self._doc_node.get_image_mime_type()
image_name = self._doc_node.get_image_name()
image_name, file_ext = os.path.splitext(image_name)
if file_ext:
file_ext = file_ext[1:]
cls = components.classes['@mozilla.org/mime;1']
mime_service = cls.getService(interfaces.nsIMIMEService)
file_ext = mime_service.getPrimaryExtension(mime_type, file_ext)
f, self._file_path = tempfile.mkstemp(image_name + '.' + file_ext)
del f
self._doc_node.save_image(self._file_path)
cls = components.classes['@mozilla.org/supports-string;1']
string_supports = cls.createInstance(interfaces.nsISupportsString)
string_supports.data = 'file://' + self._file_path
return string_supports, 32
class DragDropHooks:
_com_interfaces_ = interfaces.nsIClipboardDragDropHooks
def __init__(self, browser):
self._browser = browser
def allowDrop(self, event, session):
raise ServerException(NS_ERROR_NOT_IMPLEMENTED)
def allowStartDrag(self, event):
raise ServerException(NS_ERROR_NOT_IMPLEMENTED)
def onPasteOrDrop(self, event, trans):
return False
def onCopyOrDrag(self, event, trans):
if not event:
logging.warning('DragDropHooks.onCopyOrDrag: no event received.')
return True
mouse_event = event.queryInterface(interfaces.nsIDOMMouseEvent)
event_target = mouse_event.target
target_node = event_target.queryInterface(interfaces.nsIDOMNode)
document_node = DocumentNode(target_node, self._browser.web_navigation)
if document_node.is_image():
# Take out this flavors as they confuse the receivers:
trans.removeDataFlavor('text/x-moz-url')
trans.removeDataFlavor('text/html')
trans.removeDataFlavor('text/unicode')
data_provider = UriListDataProvider(document_node)
trans.addDataFlavor('text/uri-list')
trans.setTransferData('text/uri-list', data_provider, 0)
return True
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