Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/ThirdParty/Send2Trash/send2trash/plat_win.py	Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,86 @@
+# Copyright 2017 Virgil Dupras
+
+# This software is licensed under the "BSD" License as described in the "LICENSE" file,
+# which should be included with this package. The terms are also available at
+# http://www.hardcoded.net/licenses/bsd_license
+
+from __future__ import unicode_literals
+
+from ctypes import (windll, Structure, byref, c_uint,
+                    create_unicode_buffer, addressof)
+from ctypes.wintypes import HWND, UINT, LPCWSTR, BOOL
+import os.path as op
+
+from .compat import text_type
+
+kernel32 = windll.kernel32
+GetShortPathNameW = kernel32.GetShortPathNameW
+
+shell32 = windll.shell32
+SHFileOperationW = shell32.SHFileOperationW
+
+
+class SHFILEOPSTRUCTW(Structure):
+    _fields_ = [
+        ("hwnd", HWND),
+        ("wFunc", UINT),
+        ("pFrom", LPCWSTR),
+        ("pTo", LPCWSTR),
+        ("fFlags", c_uint),
+        ("fAnyOperationsAborted", BOOL),
+        ("hNameMappings", c_uint),
+        ("lpszProgressTitle", LPCWSTR),
+        ]
+
+
+FO_MOVE = 1
+FO_COPY = 2
+FO_DELETE = 3
+FO_RENAME = 4
+
+FOF_MULTIDESTFILES = 1
+FOF_SILENT = 4
+FOF_NOCONFIRMATION = 16
+FOF_ALLOWUNDO = 64
+FOF_NOERRORUI = 1024
+
+
+def get_short_path_name(long_name):
+    if not long_name.startswith('\\\\?\\'):
+        long_name = '\\\\?\\' + long_name
+    buf_size = GetShortPathNameW(long_name, None, 0)
+    output = create_unicode_buffer(buf_size)
+    GetShortPathNameW(long_name, output, buf_size)
+    return output.value[4:]  # Remove '\\?\' for SHFileOperationW
+
+
+def send2trash(path):
+    if not isinstance(path, text_type):
+        path = text_type(path, 'mbcs')
+    if not op.isabs(path):
+        path = op.abspath(path)
+    path = get_short_path_name(path)
+    fileop = SHFILEOPSTRUCTW()
+    fileop.hwnd = 0
+    fileop.wFunc = FO_DELETE
+    # FIX: https://github.com/hsoft/send2trash/issues/17
+    # Starting in python 3.6.3 it is no longer possible to use:
+    # LPCWSTR(path + '\0') directly as embedded null characters are no longer
+    # allowed in strings
+    # Workaround
+    #  - create buffer of c_wchar[] (LPCWSTR is based on this type)
+    #  - buffer is two c_wchar characters longer (double null terminator)
+    #  - cast the address of the buffer to a LPCWSTR
+    # NOTE: based on how python allocates memory for these types they should
+    # always be zero, if this is ever not true we can go back to explicitly
+    # setting the last two characters to null using buffer[index] = '\0'.
+    buffer = create_unicode_buffer(path, len(path)+2)
+    fileop.pFrom = LPCWSTR(addressof(buffer))
+    fileop.pTo = None
+    fileop.fFlags = FOF_ALLOWUNDO | FOF_NOCONFIRMATION | FOF_NOERRORUI | FOF_SILENT
+    fileop.fAnyOperationsAborted = 0
+    fileop.hNameMappings = 0
+    fileop.lpszProgressTitle = None
+    result = SHFileOperationW(byref(fileop))
+    if result:
+        raise WindowsError(None, None, path, result)