/usr/lib/python3/dist-packages/raphodo/filebrowse.py is in rapid-photo-downloader 0.9.9-1.
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# This file is part of Rapid Photo Downloader.
#
# Rapid Photo Downloader 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 3 of the License, or
# (at your option) any later version.
#
# Rapid Photo Downloader 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 Rapid Photo Downloader. If not,
# see <http://www.gnu.org/licenses/>.
"""
Display file system folders and allow the user to select one
"""
__author__ = 'Damon Lynch'
__copyright__ = "Copyright 2016-2017, Damon Lynch"
import os
import pathlib
from typing import List, Set
import logging
import shlex
import subprocess
from gettext import gettext as _
from PyQt5.QtCore import (
QDir, Qt, QModelIndex, QItemSelectionModel, QSortFilterProxyModel, QPoint
)
from PyQt5.QtWidgets import (
QTreeView, QAbstractItemView, QFileSystemModel, QSizePolicy, QStyledItemDelegate,
QStyleOptionViewItem, QMenu
)
from PyQt5.QtGui import QIcon
from PyQt5.QtGui import QPainter, QFont
import raphodo.qrc_resources as qrc_resources
from raphodo.constants import minPanelWidth, minFileSystemViewHeight, Roles
from raphodo.storage import gvfs_gphoto2_path
class FileSystemModel(QFileSystemModel):
"""
Use Qt's built-in functionality to model the file system.
Augment it by displaying provisional subfolders in the photo and video
download destinations.
"""
def __init__(self, parent) -> None:
super().__init__(parent)
# More filtering done in the FileSystemFilter
self.setFilter(QDir.AllDirs | QDir.NoDotAndDotDot )
self.folder_icon = QIcon(':/icons/folder.svg')
self.download_folder_icon = QIcon(':/icons/folder-filled.svg')
self.setRootPath('/')
# The next two values are set via FolderPreviewManager.update()
# They concern provisional folders that will be used if the
# download proceeds, and all files are downloaded.
# First value: subfolders we've created to demonstrate to the user
# where their files will be downloaded to
self.preview_subfolders = set() # type: Set[str]
# Second value: subfolders that already existed, but that we still
# want to indicate to the user where their files will be downloaded to
self.download_subfolders = set() # type: Set[str]
# Folders that were actually used to download files into
self.subfolders_downloaded_into = set() # type: Set[str]
def data(self, index: QModelIndex, role=Qt.DisplayRole):
if role == Qt.DecorationRole:
path = index.data(QFileSystemModel.FilePathRole) # type: str
if path in self.download_subfolders or path in self.subfolders_downloaded_into:
return self.download_folder_icon
else:
return self.folder_icon
if role == Roles.folder_preview:
path = index.data(QFileSystemModel.FilePathRole)
return path in self.preview_subfolders and path not in self.subfolders_downloaded_into
return super().data(index, role)
def add_subfolder_downloaded_into(self, path: str, download_folder: str) -> bool:
"""
Add a path to the set of subfolders that indicate where files where
downloaded.
:param path: the full path to the folder
:return: True if the path was not added before, else False
"""
if path not in self.subfolders_downloaded_into:
self.subfolders_downloaded_into.add(path)
pl_subfolders = pathlib.Path(path)
pl_download_folder = pathlib.Path(download_folder)
for subfolder in pl_subfolders.parents:
if not pl_download_folder in subfolder.parents:
break
self.subfolders_downloaded_into.add(str(subfolder))
return True
return False
class FileSystemView(QTreeView):
def __init__(self, model: FileSystemModel, rapidApp, parent=None) -> None:
super().__init__(parent)
self.rapidApp = rapidApp
self.fileSystemModel = model
self.setHeaderHidden(True)
self.setSelectionBehavior(QAbstractItemView.SelectRows)
self.setSelectionMode(QAbstractItemView.SingleSelection)
self.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding)
self.setMinimumWidth(minPanelWidth())
self.setMinimumHeight(minFileSystemViewHeight())
self.setContextMenuPolicy(Qt.CustomContextMenu)
self.customContextMenuRequested.connect(self.onCustomContextMenu)
self.contextMenu = QMenu()
self.openInFileBrowserAct = self.contextMenu.addAction(_('Open in File Browser...'))
self.openInFileBrowserAct.triggered.connect(self.doOpenInFileBrowserAct)
self.openInFileBrowserAct.setEnabled(self.rapidApp.file_manager is not None)
self.clickedIndex = None # type: QModelIndex
def hideColumns(self) -> None:
"""
Call only after the model has been initialized
"""
for i in (1, 2, 3):
self.hideColumn(i)
def goToPath(self, path: str, scrollTo: bool=True) -> None:
"""
Select the path, expand its subfolders, and scroll to it
:param path:
:return:
"""
if not path:
return
index = self.model().mapFromSource(self.fileSystemModel.index(path))
self.setExpanded(index, True)
selection = self.selectionModel()
selection.select(index, QItemSelectionModel.ClearAndSelect|QItemSelectionModel.Rows)
if scrollTo:
self.scrollTo(index, QAbstractItemView.PositionAtTop)
def expandPreviewFolders(self, path: str) -> bool:
"""
Expand any unexpanded preview folders
:param path: path under which to expand folders
:return: True if path was expanded, else False
"""
self.goToPath(path, scrollTo=True)
if not path:
return False
expanded = False
for path in self.fileSystemModel.download_subfolders:
# print('path', path)
index = self.model().mapFromSource(self.fileSystemModel.index(path))
if not self.isExpanded(index):
self.expand(index)
expanded = True
return expanded
def expandPath(self, path) -> None:
index = self.model().mapFromSource(self.fileSystemModel.index(path))
if not self.isExpanded(index):
self.expand(index)
def onCustomContextMenu(self, point: QPoint) -> None:
index = self.indexAt(point)
if index.isValid():
self.clickedIndex = index
self.contextMenu.exec(self.mapToGlobal(point))
def doOpenInFileBrowserAct(self):
index = self.clickedIndex
if index:
uri = self.fileSystemModel.filePath(index.model().mapToSource(index))
cmd = '{} "{}"'.format(self.rapidApp.file_manager, uri)
logging.debug("Launching: %s", cmd)
args = shlex.split(cmd)
subprocess.Popen(args)
class FileSystemFilter(QSortFilterProxyModel):
"""
Filter out the display of RPD's cache and temporary directories
"""
def __init__(self, parent=None):
super().__init__(parent)
self.filtered_dir_names = set()
def setTempDirs(self, dirs: List[str]) -> None:
filters = [os.path.basename(path) for path in dirs]
self.filtered_dir_names = self.filtered_dir_names | set(filters)
self.invalidateFilter()
def filterAcceptsRow(self, sourceRow: int, sourceParent: QModelIndex=None) -> bool:
index = self.sourceModel().index(sourceRow, 0, sourceParent) # type: QModelIndex
path = index.data(QFileSystemModel.FilePathRole) # type: str
if gvfs_gphoto2_path(path):
logging.debug("Rejecting browsing path %s", path)
return False
if not self.filtered_dir_names:
return True
file_name = index.data(QFileSystemModel.FileNameRole)
return file_name not in self.filtered_dir_names
class FileSystemDelegate(QStyledItemDelegate):
"""
Italicize provisional download folders that were not already created
"""
def __init__(self, parent=None):
super().__init__(parent)
def paint(self, painter: QPainter, option: QStyleOptionViewItem, index: QModelIndex) -> None:
if index is None:
return
folder_preview = index.data(Roles.folder_preview)
if folder_preview:
font = QFont()
font.setItalic(True)
option.font = font
super().paint(painter, option, index)
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