#coding=utf-8
"""
Test various clipboard solutions (for Windows).
by Cees Timmerman
2014-12-04 v1.1 use locale.getpreferredencoding()
2014-12-05 v1.2 Test emoji. pyperclip (1.5.5) now uses the ctypes code.
"""

try: from tkinter import Tk
except ImportError: from Tkinter import Tk
import ctypes, locale, sys

#import win32clipboard  # http://sourceforge.net/projects/pywin32/files/pywin32/

# http://stackoverflow.com/questions/579687/how-do-i-copy-a-string-to-the-clipboard-on-windows-using-python/4203897
wcscpy = ctypes.cdll.msvcrt.wcscpy
OpenClipboard = ctypes.windll.user32.OpenClipboard
EmptyClipboard = ctypes.windll.user32.EmptyClipboard
GetClipboardData = ctypes.windll.user32.GetClipboardData
SetClipboardData = ctypes.windll.user32.SetClipboardData
CloseClipboard = ctypes.windll.user32.CloseClipboard
CF_UNICODETEXT = 13
GlobalAlloc = ctypes.windll.kernel32.GlobalAlloc
GlobalLock = ctypes.windll.kernel32.GlobalLock
GlobalUnlock = ctypes.windll.kernel32.GlobalUnlock
GMEM_DDESHARE = 0x2000 
def copy_c(data):
	try:  # Python 2
		if not isinstance(data, unicode):
			data = data.decode('mbcs')
	except NameError:
		if not isinstance(data, str):
			data = data.decode('mbcs')
	OpenClipboard(None)
	EmptyClipboard()
	hCd = GlobalAlloc(GMEM_DDESHARE, 2 * (len(data) + 1))
	pchData = GlobalLock(hCd)
	wcscpy(ctypes.c_wchar_p(pchData), data)
	GlobalUnlock(hCd)
	SetClipboardData(CF_UNICODETEXT, hCd)
	#ctypes.windll.user32.SetClipboardText(CF_UNICODETEXT, hCd)
	CloseClipboard()
def paste_c():
	OpenClipboard(None)
	handle = GetClipboardData(CF_UNICODETEXT)
	data = ctypes.c_wchar_p(handle).value
	# Returns u'' on Windows 8.1:
	#pcontents = GlobalLock(handle)
	#data = ctypes.c_wchar_p(pcontents).value if pcontents else u''
	#GlobalUnlock(handle)
	CloseClipboard()
	return data

# win32clipboard (best so far)
def copy(text):
	win32clipboard.OpenClipboard()
	win32clipboard.EmptyClipboard()
	#win32clipboard.SetClipboardText(text.encode(locale.getpreferredencoding()), win32clipboard.CF_TEXT)
	win32clipboard.SetClipboardText(text, win32clipboard.CF_UNICODETEXT)
	win32clipboard.CloseClipboard()
def paste():
	win32clipboard.OpenClipboard()
	#print("Paste using %r" % locale.getpreferredencoding())  # Often 'cp1252'.
	#data = win32clipboard.GetClipboardData(win32clipboard.CF_TEXT).decode(locale.getpreferredencoding())
	data = win32clipboard.GetClipboardData(win32clipboard.CF_UNICODETEXT) #.decode(locale.getpreferredencoding())
	win32clipboard.CloseClipboard()
	return data

# Tkinter
def copy_tk(text):
	"Doesn't stick after process ends on Windows 8.1! Unless win32clipboard.GetClipboardData(win32clipboard.CF_TEXT) is called, but then why use Tk?"
	r = Tk()
	r.withdraw()  # Hide window from update()
	r.clipboard_clear()
	r.clipboard_append(text)
	#r.update()  # Useless.
	r.destroy()
def paste_tk():
	r = Tk()
	r.withdraw()
	data = r.clipboard_get()
	r.destroy()
	return data


if __name__ == "__main__":	
	text = "Testing\nthe “clip—board”:"
	text = "📋." # http://bugs.python.org/issue22999 - Emoji 📋 (\U0001f400) is copied as 🐀 (\U0001f4cb) in Python 3.3+.
	try: text = text.decode('utf8')  # Python 2 needs decode to make a Unicode string.
	except AttributeError: pass
	print("%r" % text.encode('utf8'))
	'''
	import clipboard as cb
	cb.copy(text)
	data = cb.paste()
	'''
	copy_c(text)
	data = paste_c()
	print("%r" % data.encode('utf8', errors='replace'))
	print("OK" if text == data else "FAIL")

	try: print(data)
	except UnicodeEncodeError as er:
		print(er)
		print(data.encode('utf8', errors='replace'))