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Diffstat (limited to 'src/jarabe/frame/clipboardpanelwindow.py')
| -rw-r--r-- | src/jarabe/frame/clipboardpanelwindow.py | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/jarabe/frame/clipboardpanelwindow.py b/src/jarabe/frame/clipboardpanelwindow.py new file mode 100644 index 0000000..6811c0d --- /dev/null +++ b/src/jarabe/frame/clipboardpanelwindow.py @@ -0,0 +1,140 @@ +# 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 logging +from urlparse import urlparse +import hashlib + +import gtk + +from jarabe.frame.framewindow import FrameWindow +from jarabe.frame.clipboardtray import ClipboardTray + +from jarabe.frame import clipboard + + +class ClipboardPanelWindow(FrameWindow): + def __init__(self, frame, orientation): + FrameWindow.__init__(self, orientation) + + self._frame = frame + + # Listening for new clipboard objects + # NOTE: we need to keep a reference to gtk.Clipboard in order to keep + # listening to it. + self._clipboard = gtk.Clipboard() + self._clipboard.connect('owner-change', self._owner_change_cb) + + self._clipboard_tray = ClipboardTray() + self._clipboard_tray.show() + self.append(self._clipboard_tray) + + # Receiving dnd drops + self.drag_dest_set(0, [], 0) + self.connect('drag_motion', self._clipboard_tray.drag_motion_cb) + self.connect('drag_leave', self._clipboard_tray.drag_leave_cb) + self.connect('drag_drop', self._clipboard_tray.drag_drop_cb) + self.connect('drag_data_received', + self._clipboard_tray.drag_data_received_cb) + + def _owner_change_cb(self, x_clipboard, event): + logging.debug('owner_change_cb') + + if self._clipboard_tray.owns_clipboard(): + return + + cb_service = clipboard.get_instance() + + targets = x_clipboard.wait_for_targets() + cb_selections = [] + if targets is None: + return + + target_is_uri = False + for target in targets: + if target not in ('TIMESTAMP', 'TARGETS', + 'MULTIPLE', 'SAVE_TARGETS'): + logging.debug('Asking for target %s.', target) + if target == 'text/uri-list': + target_is_uri = True + + selection = x_clipboard.wait_for_contents(target) + if not selection: + logging.warning('no data for selection target %s.', target) + continue + cb_selections.append(selection) + + if target_is_uri: + uri = selection.data + filename = uri[len('file://'):].strip() + md5 = self._md5_for_file(filename) + data_hash = hash(md5) + else: + data_hash = hash(selection.data) + + if len(cb_selections) > 0: + key = cb_service.add_object(name="", data_hash=data_hash) + if key is None: + return + cb_service.set_object_percent(key, percent=0) + for selection in cb_selections: + self._add_selection(key, selection) + cb_service.set_object_percent(key, percent=100) + + def _md5_for_file(self, file_name): + '''Calculate md5 for file data + + Calculating block wise to prevent issues with big files in memory + ''' + block_size = 8192 + md5 = hashlib.md5() + f = open(file_name, 'r') + while True: + data = f.read(block_size) + if not data: + break + md5.update(data) + f.close() + return md5.digest() + + def _add_selection(self, key, selection): + if not selection.data: + logging.warning('no data for selection target %s.', selection.type) + return + + logging.debug('adding type ' + selection.type + '.') + + cb_service = clipboard.get_instance() + if selection.type == 'text/uri-list': + uris = selection.get_uris() + + if len(uris) > 1: + raise NotImplementedError('Multiple uris in text/uri-list' \ + ' still not supported.') + uri = uris[0] + scheme, netloc_, path_, parameters_, query_, fragment_ = \ + urlparse(uri) + on_disk = (scheme == 'file') + + cb_service.add_object_format(key, + selection.type, + uri, + on_disk) + else: + cb_service.add_object_format(key, + selection.type, + selection.data, + on_disk=False) |