Current File : //usr/lib/calibre/calibre/gui2/device_drivers/mtp_folder_browser.py
#!/usr/bin/env python3
__license__ = 'GPL v3'
__copyright__ = '2012, Kovid Goyal <kovid at kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
from operator import attrgetter
from qt.core import (QTabWidget, QTreeWidget, QTreeWidgetItem, Qt, QDialog,
QDialogButtonBox, QVBoxLayout, QSize, pyqtSignal, QIcon, QLabel)
from calibre.gui2 import file_icon_provider
def browser_item(f, parent):
name = f.name
if not f.is_folder:
name += ' [%s]'%f.last_mod_string
ans = QTreeWidgetItem(parent, [name])
ans.setData(0, Qt.ItemDataRole.UserRole, f.full_path)
if f.is_folder:
ext = 'dir'
else:
ext = f.name.rpartition('.')[-1]
ans.setData(0, Qt.ItemDataRole.DecorationRole, file_icon_provider().icon_from_ext(ext))
return ans
class Storage(QTreeWidget):
def __init__(self, storage, show_files=False, item_func=browser_item):
QTreeWidget.__init__(self)
self.item_func = item_func
self.show_files = show_files
self.create_children(storage, self)
self.name = storage.name
self.object_id = storage.persistent_id
self.setMinimumHeight(350)
self.setHeaderHidden(True)
self.storage = storage
def create_children(self, f, parent):
for child in sorted(f.folders, key=attrgetter('name')):
i = self.item_func(child, parent)
self.create_children(child, i)
if self.show_files:
for child in sorted(f.files, key=attrgetter('name')):
i = self.item_func(child, parent)
@property
def current_item(self):
item = self.currentItem()
if item is not None:
return (self.object_id, item.data(0, Qt.ItemDataRole.UserRole))
return None
class Folders(QTabWidget):
selected = pyqtSignal()
def __init__(self, filesystem_cache, show_files=True):
QTabWidget.__init__(self)
self.fs = filesystem_cache
for storage in self.fs.entries:
w = Storage(storage, show_files)
self.addTab(w, w.name)
w.doubleClicked.connect(self.selected)
self.setCurrentIndex(0)
@property
def current_item(self):
w = self.currentWidget()
if w is not None:
return w.current_item
class Browser(QDialog):
def __init__(self, filesystem_cache, show_files=True, parent=None):
QDialog.__init__(self, parent)
self.l = l = QVBoxLayout()
self.setLayout(l)
self.folders = cw = Folders(filesystem_cache, show_files=show_files)
l.addWidget(cw)
bb = QDialogButtonBox(QDialogButtonBox.StandardButton.Ok|QDialogButtonBox.StandardButton.Cancel)
l.addWidget(bb)
bb.accepted.connect(self.accept)
bb.rejected.connect(self.reject)
self.setMinimumSize(QSize(500, 500))
self.folders.selected.connect(self.accept)
self.setWindowTitle(_('Choose folder on device'))
self.setWindowIcon(QIcon(I('devices/tablet.png')))
@property
def current_item(self):
return self.folders.current_item
class IgnoredFolders(QDialog):
def __init__(self, dev, ignored_folders=None, parent=None):
QDialog.__init__(self, parent)
self.l = l = QVBoxLayout()
self.setLayout(l)
self.la = la = QLabel('<p>'+ _('<b>Scanned folders:</b>') + ' ' +
_('You can select which folders calibre will '
'scan when searching this device for books.'))
la.setWordWrap(True)
l.addWidget(la)
self.tabs = QTabWidget(self)
l.addWidget(self.tabs)
self.widgets = []
for storage in dev.filesystem_cache.entries:
self.dev = dev
w = Storage(storage, item_func=self.create_item)
del self.dev
self.tabs.addTab(w, storage.name)
self.widgets.append(w)
w.itemChanged.connect(self.item_changed)
self.la2 = la = QLabel(_(
'If you a select a previously unselected folder, any sub-folders'
' will not be visible until you restart calibre.'))
l.addWidget(la)
la.setWordWrap(True)
self.bb = QDialogButtonBox(QDialogButtonBox.StandardButton.Ok |
QDialogButtonBox.StandardButton.Cancel)
self.bb.accepted.connect(self.accept)
self.bb.rejected.connect(self.reject)
self.sab = self.bb.addButton(_('Select &all'), QDialogButtonBox.ButtonRole.ActionRole)
self.sab.clicked.connect(self.select_all)
self.snb = self.bb.addButton(_('Select &none'), QDialogButtonBox.ButtonRole.ActionRole)
self.snb.clicked.connect(self.select_none)
l.addWidget(self.bb)
self.setWindowTitle(_('Choose folders to scan'))
self.setWindowIcon(QIcon(I('devices/tablet.png')))
self.resize(600, 500)
def item_changed(self, item, column):
w = item.treeWidget()
root = w.invisibleRootItem()
w.itemChanged.disconnect(self.item_changed)
try:
if item.checkState(0) == Qt.CheckState.Checked:
# Ensure that the parents of this item are checked
p = item.parent()
while p is not None and p is not root:
p.setCheckState(0, Qt.CheckState.Checked)
p = p.parent()
# Set the state of all descendants to the same state as this item
for child in self.iterchildren(item):
child.setCheckState(0, item.checkState(0))
finally:
w.itemChanged.connect(self.item_changed)
def iterchildren(self, node):
' Iterate over all descendants of node '
for i in range(node.childCount()):
child = node.child(i)
yield child
yield from self.iterchildren(child)
def create_item(self, f, parent):
name = f.name
ans = QTreeWidgetItem(parent, [name])
ans.setData(0, Qt.ItemDataRole.UserRole, '/'.join(f.full_path[1:]))
ans.setFlags(Qt.ItemFlag.ItemIsUserCheckable | Qt.ItemFlag.ItemIsEnabled)
ans.setCheckState(0,
Qt.CheckState.Unchecked if self.dev.is_folder_ignored(f.storage_id, f.full_path[1:]) else Qt.CheckState.Checked)
ans.setData(0, Qt.ItemDataRole.DecorationRole, file_icon_provider().icon_from_ext('dir'))
return ans
def select_all(self):
w = self.tabs.currentWidget()
for i in range(w.invisibleRootItem().childCount()):
c = w.invisibleRootItem().child(i)
c.setCheckState(0, Qt.CheckState.Checked)
def select_none(self):
w = self.tabs.currentWidget()
for i in range(w.invisibleRootItem().childCount()):
c = w.invisibleRootItem().child(i)
c.setCheckState(0, Qt.CheckState.Unchecked)
@property
def ignored_folders(self):
ans = {}
for w in self.widgets:
folders = set()
for node in self.iterchildren(w.invisibleRootItem()):
if node.checkState(0) == Qt.CheckState.Checked:
continue
path = str(node.data(0, Qt.ItemDataRole.UserRole) or '')
parent = path.rpartition('/')[0]
if '/' not in path or icu_lower(parent) not in folders:
folders.add(icu_lower(path))
ans[str(w.storage.storage_id)] = list(folders)
return ans
def setup_device():
from calibre.devices.mtp.driver import MTP_DEVICE
from calibre.devices.scanner import DeviceScanner
s = DeviceScanner()
s.scan()
dev = MTP_DEVICE(None)
dev.startup()
cd = dev.detect_managed_devices(s.devices)
if cd is None:
raise ValueError('No MTP device found')
dev.open(cd, 'test')
return dev
def browse():
from calibre.gui2 import Application
app = Application([])
app
dev = setup_device()
d = Browser(dev.filesystem_cache)
d.exec()
dev.shutdown()
return d.current_item
def ignored_folders():
from calibre.gui2 import Application
app = Application([])
app
dev = setup_device()
d = IgnoredFolders(dev)
d.exec()
dev.shutdown()
return d.ignored_folders
if __name__ == '__main__':
print(browse())
# print ('Ignored:', ignored_folders())
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