def __init__(self, directory, freezed=True):
QAbstractItemModel.__init__(self)
self.directory = directory
#self.icon_for = icon_factory
self.prompter = lambda *args: FSAction.PROMPT_CANCEL
self.update_func = lambda *args: None
self.color_directories = False
self.copyStarting = Callback()
self.moveStarting = Callback()
self.deleteStarting = Callback()
self.onDrop = Callback()
self.preFSOp = Callback()
self.modelReset = Callback()
if not self.CACHING:
self.data = self._data
self.icon_mapping = {}
self.overrides = {}
self.cache = {}
class DirModel(QAbstractItemModel):
"""
:ivar directory: A `directory`-like object
:ivar prompter: A callable which is called when a user interaction
is needed by an FS Operation (copy, move), defaults to
lambda *args: FSAction.PROMPT_CANCEL
:ivar icon_mapping: .ext -> icon_name
:cvar columns: a dict column_number -> column_name
:cvar CACHING: if true `data`s return values are cached
"""
# pylint: disable-msg=C0103
columns = dict(enumerate(('Filename', 'Size', 'Modified')))
directoryChanged = pyqtSignal(object)
preDirectoryChanged = pyqtSignal(object)
CACHING = True
def __init__(self, directory, freezed=True):
QAbstractItemModel.__init__(self)
self.directory = directory
#self.icon_for = icon_factory
self.prompter = lambda *args: FSAction.PROMPT_CANCEL
self.update_func = lambda *args: None
self.color_directories = False
self.copyStarting = Callback()
self.moveStarting = Callback()
self.deleteStarting = Callback()
self.onDrop = Callback()
self.preFSOp = Callback()
self.modelReset = Callback()
if not self.CACHING:
self.data = self._data
self.icon_mapping = {}
self.overrides = {}
self.cache = {}
def index(self, row, column, parent):
if parent.isValid() or not self.hasIndex(row, column, parent):
return QModelIndex()
idx = self.createIndex(row, column, self.directory[row])
return idx
def path2index(self, pathobj):
row = self.directory.files.index(pathobj)
return self.index(row, 0, QModelIndex())
def rowCount(self, parent):
#print "RC", len(self.directory), len(self.directory.files)
if not parent.isValid():
return len(self.directory)
else:
return 0
def columnCount(self, parent):
return len(self.columns)
def data(self, index, role):
try:
return self.cache[index.row(), index.column(), role]
except KeyError:
pass
try:
value = self._data(index, role)
except OSError as exception:
# File list invalid
if exception.errno == errno.ENOENT:
#print "NOENT"
self.changeDirectory()
else:
raise
else:
self.cache[index.row(), index.column(), role] = value
return value
def _data(self, index, role):
row = index.row()
column = index.column()
column_name = self.columns[column]
filepath = index.internalPointer()
obj = self.overrides.get((filepath, column, role), None)
if obj is not None:
return obj
if filepath is None:
import sys
logger['DirModel'].error(
"Fatal model error, requested index '%s' not found",
row
)
QApplication.instance().exit()
sys.exit()
# Handle broken symlinks
if not filepath.realpath().exists():
if column_name == 'Filename':
if role == Qt.DisplayRole:
return self.formatFilename(filepath.name)
elif role == Qt.DecorationRole:
return self.icon_for(filepath)
elif role == Qt.EditRole:
return filepath.name
elif column_name == 'Modified' and role == Qt.DisplayRole:
return "0000-00-00 00:00"
elif column_name == 'Size' and role == Qt.DisplayRole:
return "0"
if role == Qt.BackgroundRole and self.color_directories:
if filepath.isdir():
return QPalette().color(QPalette.AlternateBase)
if column_name == 'Filename':
if role == Qt.DisplayRole:
return self.formatFilename(filepath.name)
elif role == Qt.DecorationRole:
return self.icon_for(filepath)
elif role == Qt.EditRole:
return filepath.name
elif column_name == 'Size' and not filepath.isdir():
if role == Qt.DisplayRole:
try:
size_str = "%.2f%s" % format_size(filepath.size)
except OSError:
size_str = ""
return size_str
elif column_name == 'Modified':
if role == Qt.DisplayRole:
date_obj = datetime.fromtimestamp(filepath.mtime)
date_str = date_obj.strftime('%Y-%m-%d %H:%M')
return date_str
return QVariant()
def setData(self, idx, data, role):
new_path = self.directory.path / unicode(data.toString())
old_path = idx.internalPointer()
old_path.rename(new_path)
try:
self.cache.pop((idx.row(), idx.column(), role))
except KeyError:
pass
self.changeDirectory()
return True
def formatFilename(self, name):
return name
def flags(self, index):
flags = QAbstractItemModel.flags(self, index)
if index.isValid() and index.internalPointer().name != u'..':
if index.column() == 0:
flags |= Qt.ItemIsEditable
return Qt.ItemIsDragEnabled | Qt.ItemIsDropEnabled | flags
else:
return Qt.ItemIsDropEnabled | flags
def parent(self, index):
return QModelIndex()
def hasChildren(self, index):
if index.row() == index.column() == -1:
return True
return False
def headerData(self, section, orientation, role=Qt.DisplayRole):
if role != Qt.DisplayRole or orientation == Qt.Vertical:
return QVariant()
return self.columns.get(section, QVariant())
def sort(self, column, order=Qt.AscendingOrder):
try:
sort_attr = {0: 'name', 1: 'size', 2: 'mtime'}[int(column)]
except ValueError:
sort_attr = column
self.directory.sort(sort_attr, order != Qt.AscendingOrder)
self.reset()
def supportedDropActions(self):
return Qt.CopyAction
def dropMimeData(self, data, action, row, column, parent):
#print "DMD", data, action, row, column, parent.row(), parent.column()
#print data.text(), data.urls(), hasattr(data, 'source_model')
if hasattr(data, 'source_model'):
filenames = [
data.source_model.directory.path_for(url.toLocalFile())
for url in data.urls()
]
relpath = data.source_model.directory.path
else:
filenames = [path(url.toLocalFile()) for url in data.urls()]
relpath = filenames[0].parent
row = parent.row()
if row == -1:
destination = self.directory.path
else:
destination = self.index(row, 0, QModelIndex()).internalPointer()
if not destination.isdir():
destination = self.directory.path
#relpath = data.source_model.directory.path
event_handled = self.onDrop.call_chain(
self, data, action, row, column, parent,
#filenames, destination, relpath
)
if event_handled:
return True
menu = QMenu()
copy = menu.addAction('Copy files')
move = menu.addAction('Move files')
cancel = menu.addAction('Cancel')
choice = menu.exec_(QCursor.pos())
if choice != cancel and choice is not None:
event_handled = self.preFSOp.call_chain(
self, data, action, row, column, parent,
{copy: 'copy', move: 'move'}[choice],
filenames, destination, relpath
)
if event_handled:
return event_handled
thread = {
copy: self.copy,
move: self.move,
}[choice](filenames, relpath, destination)
try:
thread.finished.connect(data.source_model.changeDirectory)
except AttributeError:
pass
thread.finished.connect(self.changeDirectory)
thread.start()
else:
return False
return True
def mimeTypes(self):
return ['text/uri-list']
def mimeData(self, indexes):
data = QMimeData()
urls = []
for index in indexes:
if index.column() == 0:
urls.append(QUrl.fromLocalFile(index.internalPointer()))
data.setUrls(urls)
data.source_model = self
return data
def reset(self):
self.cache.clear()
return QAbstractItemModel.reset(self)
def changeDirectory(self, newpath=None):
"""
Changes the model's current directory to `newpath`
If `newpath` is None it refreshs the contents of the current dir
"""
def reset_model():
self.reset()
self.directoryChanged.emit(newpath)
self.preDirectoryChanged.emit(self.directory.path)
sync, defer = self.directory.chdir(newpath)
if sync:
reset_model()
else:
defer.connect(reset_model)
@defer.connect_errback
def errback(exception):
print exception
def setFilter(self, func):
def filterwrapper(p):
if func:
return func(filters.make_path_props(p))
else:
return True
if func:
filterwrapper.text = func.text
else:
filterwrapper.text = ''
self.directory.set_filter(filterwrapper)
self.reset()
def copy(self, filenames, relpath, destination):
thread = FSOpThread(self,
self.directory.copy(
relpath,
filenames,
destination,
self.prompter,
self.update_func
)
)
self.copyStarting.emit(filenames, destination, thread)
return thread
def move(self, filenames, relpath, destination):
thread = FSOpThread(self,
self.directory.move(
relpath,
filenames,
destination,
self.prompter,
self.update_func
)
)
self.moveStarting.emit(filenames, destination, thread)
return thread
def delete(self, indexes):
filenames = [idx.internalPointer() for idx in indexes]
relpath = self.directory.path
print filenames
thread = FSOpThread(self,
self.directory.delete(
relpath,
filenames,
self.prompter,
self.update_func,
)
)
self.deleteStarting.emit(filenames, thread)
thread.finished.connect(
self.changeDirectory
)
thread.start()
def mkdir(self, dirname):
fullname = self.directory.path / dirname
fullname.mkdir()
self.changeDirectory()
def stats(self, index):
pass
def icon_for(self, filename):
return QImage(self.icon_path_for(filename))
def icon_path_for(self, filename):
def splitext(filename):
parts = filename.split('.')
if len(parts) == 1:
return ".%s" % parts[0]
elif parts[-2] == 'tar':
return ".%s.%s" % (parts[-2], parts[-1])
else:
return ".%s" % parts[-1]
basepath = path('gfx/mimetypes')
if filename.name == u"..":
return basepath / u"up.png"
if filename.isdir():
return basepath / u"folder.png"
ext = splitext(filename)
try:
return basepath / self.icon_mapping[ext.lower()]
except KeyError:
return basepath / self.icon_mapping['']
