WebSVN – HelenOS – Diff – /branches/dynload/tools/xtui.py


#
# Copyright (c) 2009 Martin Decky
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in the
#   documentation and/or other materials provided with the distribution.
# - The name of the author may not be used to endorse or promote products
#   derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
"""
Text User Interface wrapper
"""
 
import sys
import os
 
def call_dlg(dlgcmd, *args, **kw):
    "Wrapper for calling 'dialog' program"
   
    indesc, outdesc = os.pipe()
    pid = os.fork()
    if (not pid):
        os.close(2)
        os.dup(outdesc)
        os.close(indesc)
       
        dlgargs = [dlgcmd]
        for key, val in kw.items():
            dlgargs.append('--' + key)
            dlgargs.append(val)
       
        dlgargs += args
        os.execlp(dlgcmd, *dlgargs)
   
    os.close(outdesc)
   
    try:
        errout = os.fdopen(indesc, 'r')
        data = errout.read()
        errout.close()
        pid, status = os.wait()
    except:
        # Reset terminal
        os.system('reset')
        raise
   
    if (not os.WIFEXITED(status)):
        # Reset terminal
        os.system('reset')
        raise EOFError
   
    status = os.WEXITSTATUS(status)
    if (status == 255):
        raise EOFError
   
    return (status, data)
 
try:
    import snack
    newt = True
    dialog = False
except ImportError:
    newt = False
   
    dlgcmd = os.environ.get('DIALOG', 'dialog')
    if (call_dlg(dlgcmd, '--print-maxsize')[0] != 0):
        dialog = False
    else:
        dialog = True
 
width_extra = 13
height_extra = 11
 
def width_fix(screen, width):
    "Correct width to screen size"
   
    if (width + width_extra > screen.width):
        width = screen.width - width_extra
   
    if (width <= 0):
        width = screen.width
   
    return width
 
def height_fix(screen, height):
    "Correct height to screen size"
   
    if (height + height_extra > screen.height):
        height = screen.height - height_extra
   
    if (height <= 0):
        height = screen.height
   
    return height
 
def screen_init():
    "Initialize the screen"
   
    if (newt):
        return snack.SnackScreen()
   
    return None
 
def screen_done(screen):
    "Cleanup the screen"
   
    if (newt):
        screen.finish()
 
def choice_window(screen, title, text, options, position):
    "Create options menu"
   
    maxopt = 0
    for option in options:
        length = len(option)
        if (length > maxopt):
            maxopt = length
   
    width = maxopt
    height = len(options)
   
    if (newt):
        width = width_fix(screen, width + width_extra)
        height = height_fix(screen, height)
       
        if (height > 3):
            large = True
        else:
            large = False
       
        buttonbar = snack.ButtonBar(screen, ('Done', 'Cancel'))
        textbox = snack.TextboxReflowed(width, text)
        listbox = snack.Listbox(height, scroll = large, returnExit = 1)
       
        cnt = 0
        for option in options:
            listbox.append(option, cnt)
            cnt += 1
       
        if (position != None):
            listbox.setCurrent(position)
       
        grid = snack.GridForm(screen, title, 1, 3)
        grid.add(textbox, 0, 0)
        grid.add(listbox, 0, 1, padding = (0, 1, 0, 1))
        grid.add(buttonbar, 0, 2, growx = 1)
       
        retval = grid.runOnce()
       
        return (buttonbar.buttonPressed(retval), listbox.current())
    elif (dialog):
        if (width < 35):
            width = 35
       
        args = []
        cnt = 0
        for option in options:
            args.append(str(cnt + 1))
            args.append(option)
           
            cnt += 1
       
        kw = {}
        if (position != None):
            kw['default-item'] = str(position + 1)
       
        status, data = call_dlg(dlgcmd, '--title', title, '--extra-button', '--extra-label', 'Done', '--menu', text, str(height + height_extra), str(width + width_extra), str(cnt), *args, **kw)
       
        if (status == 1):
            return ('cancel', None)
       
        try:
            choice = int(data) - 1
        except ValueError:
            return ('cancel', None)
       
        if (status == 0):
            return (None, choice)
       
        return ('done', choice)
   
    sys.stdout.write("\n *** %s *** \n%s\n\n" % (title, text))
   
    maxcnt = len(str(len(options)))
    cnt = 0
    for option in options:
        sys.stdout.write("%*s. %s\n" % (maxcnt, cnt + 1, option))
        cnt += 1
   
    sys.stdout.write("\n%*s. Done\n" % (maxcnt, '0'))
    sys.stdout.write("%*s. Quit\n\n" % (maxcnt, 'q'))
   
    while True:
        if (position != None):
            sys.stdout.write("Selection[%s]: " % str(position + 1))
        else:
            sys.stdout.write("Selection: ")
        inp = sys.stdin.readline()
       
        if (not inp):
            raise EOFError
       
        if (not inp.strip()):
            if (position != None):
                return (None, position)
            continue
       
        if (inp.strip() == 'q'):
            return ('cancel', None)
       
        try:
            choice = int(inp.strip())
        except ValueError:
            continue
       
        if (choice == 0):
            return ('done', 0)
       
        if (choice < 1) or (choice > len(options)):
            continue
       
        return (None, choice - 1)
 
def error_dialog(screen, title, msg):
    "Print error dialog"
   
    width = len(msg)
   
    if (newt):
        width = width_fix(screen, width)
       
        buttonbar = snack.ButtonBar(screen, ['Ok'])
        textbox = snack.TextboxReflowed(width, msg)
       
        grid = snack.GridForm(screen, title, 1, 2)
        grid.add(textbox, 0, 0, padding = (0, 0, 0, 1))
        grid.add(buttonbar, 0, 1, growx = 1)
        grid.runOnce()
    elif (dialog):
        call_dlg(dlgcmd, '--title', title, '--msgbox', msg, '6', str(width + width_extra))
    else:
        sys.stdout.write("\n%s: %s\n" % (title, msg))
 

Rev 4341	Rev 4346
1	#	1	#
2	# Copyright (c) 2009 Martin Decky	2	# Copyright (c) 2009 Martin Decky
3	# All rights reserved.	3	# All rights reserved.
4	#	4	#
5	# Redistribution and use in source and binary forms, with or without	5	# Redistribution and use in source and binary forms, with or without
6	# modification, are permitted provided that the following conditions	6	# modification, are permitted provided that the following conditions
7	# are met:	7	# are met:
8	#	8	#
9	# - Redistributions of source code must retain the above copyright	9	# - Redistributions of source code must retain the above copyright
10	# notice, this list of conditions and the following disclaimer.	10	# notice, this list of conditions and the following disclaimer.
11	# - Redistributions in binary form must reproduce the above copyright	11	# - Redistributions in binary form must reproduce the above copyright
12	# notice, this list of conditions and the following disclaimer in the	12	# notice, this list of conditions and the following disclaimer in the
13	# documentation and/or other materials provided with the distribution.	13	# documentation and/or other materials provided with the distribution.
14	# - The name of the author may not be used to endorse or promote products	14	# - The name of the author may not be used to endorse or promote products
15	# derived from this software without specific prior written permission.	15	# derived from this software without specific prior written permission.
16	#	16	#
17	# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	#	27	#
28	"""	28	"""
29	Text User Interface wrapper	29	Text User Interface wrapper
30	"""	30	"""
31		31
32	import sys	32	import sys
33	import os	33	import os
34		34
35	def call_dlg(dlgcmd, args, *kw):	35	def call_dlg(dlgcmd, args, *kw):
36	"Wrapper for calling 'dialog' program"	36	"Wrapper for calling 'dialog' program"
37		37
38	indesc, outdesc = os.pipe()	38	indesc, outdesc = os.pipe()
39	pid = os.fork()	39	pid = os.fork()
40	if (not pid):	40	if (not pid):
41	os.close(2)	41	os.close(2)
42	os.dup(outdesc)	42	os.dup(outdesc)
43	os.close(indesc)	43	os.close(indesc)
44		44
45	dlgargs = [dlgcmd]	45	dlgargs = [dlgcmd]
46	for key, val in kw.items():	46	for key, val in kw.items():
47	dlgargs.append('--' + key)	47	dlgargs.append('--' + key)
48	dlgargs.append(val)	48	dlgargs.append(val)
49		49
50	dlgargs += args	50	dlgargs += args
51	os.execlp(dlgcmd, *dlgargs)	51	os.execlp(dlgcmd, *dlgargs)
52		52
53	os.close(outdesc)	53	os.close(outdesc)
54		54
55	try:	55	try:
56	errout = os.fdopen(indesc, 'r')	56	errout = os.fdopen(indesc, 'r')
57	data = errout.read()	57	data = errout.read()
58	errout.close()	58	errout.close()
59	pid, status = os.wait()	59	pid, status = os.wait()
60	except:	60	except:
61	# Reset terminal	61	# Reset terminal
62	os.system('reset')	62	os.system('reset')
63	raise	63	raise
64		64
65	if (not os.WIFEXITED(status)):	65	if (not os.WIFEXITED(status)):
66	# Reset terminal	66	# Reset terminal
67	os.system('reset')	67	os.system('reset')
68	raise EOFError	68	raise EOFError
69		69
70	status = os.WEXITSTATUS(status)	70	status = os.WEXITSTATUS(status)
71	if (status == 255):	71	if (status == 255):
72	raise EOFError	72	raise EOFError
73		73
74	return (status, data)	74	return (status, data)
75		75
76	try:	76	try:
77	import snack	77	import snack
78	newt = True	78	newt = True
79	dialog = False	79	dialog = False
80	except ImportError:	80	except ImportError:
81	newt = False	81	newt = False
82		82
83	dlgcmd = os.environ.get('DIALOG', 'dialog')	83	dlgcmd = os.environ.get('DIALOG', 'dialog')
84	if (call_dlg(dlgcmd, '--print-maxsize')[0] != 0):	84	if (call_dlg(dlgcmd, '--print-maxsize')[0] != 0):
85	dialog = False	85	dialog = False
86	else:	86	else:
87	dialog = True	87	dialog = True
88		88
89	width_extra = 13	89	width_extra = 13
90	height_extra = 11	90	height_extra = 11
91		91
92	def width_fix(screen, width):	92	def width_fix(screen, width):
93	"Correct width to screen size"	93	"Correct width to screen size"
94		94
95	if (width + width_extra > screen.width):	95	if (width + width_extra > screen.width):
96	width = screen.width - width_extra	96	width = screen.width - width_extra
97		97
98	if (width <= 0):	98	if (width <= 0):
99	width = screen.width	99	width = screen.width
100		100
101	return width	101	return width
102		102
103	def height_fix(screen, height):	103	def height_fix(screen, height):
104	"Correct height to screen size"	104	"Correct height to screen size"
105		105
106	if (height + height_extra > screen.height):	106	if (height + height_extra > screen.height):
107	height = screen.height - height_extra	107	height = screen.height - height_extra
108		108
109	if (height <= 0):	109	if (height <= 0):
110	height = screen.height	110	height = screen.height
111		111
112	return height	112	return height
113		113
114	def screen_init():	114	def screen_init():
115	"Initialize the screen"	115	"Initialize the screen"
116		116
117	if (newt):	117	if (newt):
118	return snack.SnackScreen()	118	return snack.SnackScreen()
119		119
120	return None	120	return None
121		121
122	def screen_done(screen):	122	def screen_done(screen):
123	"Cleanup the screen"	123	"Cleanup the screen"
124		124
125	if (newt):	125	if (newt):
126	screen.finish()	126	screen.finish()
127		127
128	def choice_window(screen, title, text, options, position):	128	def choice_window(screen, title, text, options, position):
129	"Create options menu"	129	"Create options menu"
130		130
131	maxopt = 0	131	maxopt = 0
132	for option in options:	132	for option in options:
133	length = len(option)	133	length = len(option)
134	if (length > maxopt):	134	if (length > maxopt):
135	maxopt = length	135	maxopt = length
136		136
137	width = maxopt	137	width = maxopt
138	height = len(options)	138	height = len(options)
139		139
140	if (newt):	140	if (newt):
141	width = width_fix(screen, width + width_extra)	141	width = width_fix(screen, width + width_extra)
142	height = height_fix(screen, height)	142	height = height_fix(screen, height)
143		143
144	if (height > 3):	144	if (height > 3):
145	large = True	145	large = True
146	else:	146	else:
147	large = False	147	large = False
148		148
149	buttonbar = snack.ButtonBar(screen, ('Done', 'Cancel'))	149	buttonbar = snack.ButtonBar(screen, ('Done', 'Cancel'))
150	textbox = snack.TextboxReflowed(width, text)	150	textbox = snack.TextboxReflowed(width, text)
151	listbox = snack.Listbox(height, scroll = large, returnExit = 1)	151	listbox = snack.Listbox(height, scroll = large, returnExit = 1)
152		152
153	cnt = 0	153	cnt = 0
154	for option in options:	154	for option in options:
155	listbox.append(option, cnt)	155	listbox.append(option, cnt)
156	cnt += 1	156	cnt += 1
157		157
158	if (position != None):	158	if (position != None):
159	listbox.setCurrent(position)	159	listbox.setCurrent(position)
160		160
161	grid = snack.GridForm(screen, title, 1, 3)	161	grid = snack.GridForm(screen, title, 1, 3)
162	grid.add(textbox, 0, 0)	162	grid.add(textbox, 0, 0)
163	grid.add(listbox, 0, 1, padding = (0, 1, 0, 1))	163	grid.add(listbox, 0, 1, padding = (0, 1, 0, 1))
164	grid.add(buttonbar, 0, 2, growx = 1)	164	grid.add(buttonbar, 0, 2, growx = 1)
165		165
166	retval = grid.runOnce()	166	retval = grid.runOnce()
167		167
168	return (buttonbar.buttonPressed(retval), listbox.current())	168	return (buttonbar.buttonPressed(retval), listbox.current())
169	elif (dialog):	169	elif (dialog):
170	if (width < 35):	170	if (width < 35):
171	width = 35	171	width = 35
172		172
173	args = []	173	args = []
174	cnt = 0	174	cnt = 0
175	for option in options:	175	for option in options:
176	args.append(str(cnt + 1))	176	args.append(str(cnt + 1))
177	args.append(option)	177	args.append(option)
178		178
179	cnt += 1	179	cnt += 1
180		180
181	kw = {}	181	kw = {}
182	if (position != None):	182	if (position != None):
183	kw['default-item'] = str(position + 1)	183	kw['default-item'] = str(position + 1)
184		184
185	status, data = call_dlg(dlgcmd, '--title', title, '--extra-button', '--extra-label', 'Done', '--menu', text, str(height + height_extra), str(width + width_extra), str(cnt), args, *kw)	185	status, data = call_dlg(dlgcmd, '--title', title, '--extra-button', '--extra-label', 'Done', '--menu', text, str(height + height_extra), str(width + width_extra), str(cnt), args, *kw)
186		186
187	if (status == 1):	187	if (status == 1):
188	return ('cancel', None)	188	return ('cancel', None)
189		189
190	try:	190	try:
191	choice = int(data) - 1	191	choice = int(data) - 1
192	except ValueError:	192	except ValueError:
193	return ('cancel', None)	193	return ('cancel', None)
194		194
195	if (status == 0):	195	if (status == 0):
196	return (None, choice)	196	return (None, choice)
197		197
198	return ('done', choice)	198	return ('done', choice)
199		199
200	sys.stdout.write("\n * %s * \n%s\n\n" % (title, text))	200	sys.stdout.write("\n * %s * \n%s\n\n" % (title, text))
201		201
202	maxcnt = len(str(len(options)))	202	maxcnt = len(str(len(options)))
203	cnt = 0	203	cnt = 0
204	for option in options:	204	for option in options:
205	sys.stdout.write("%*s. %s\n" % (maxcnt, cnt + 1, option))	205	sys.stdout.write("%*s. %s\n" % (maxcnt, cnt + 1, option))
206	cnt += 1	206	cnt += 1
207		207
208	sys.stdout.write("\n%*s. Done\n" % (maxcnt, '0'))	208	sys.stdout.write("\n%*s. Done\n" % (maxcnt, '0'))
209	sys.stdout.write("%*s. Quit\n\n" % (maxcnt, 'q'))	209	sys.stdout.write("%*s. Quit\n\n" % (maxcnt, 'q'))
210		210
211	while True:	211	while True:
212	if (position != None):	212	if (position != None):
213	sys.stdout.write("Selection[%s]: " % str(position + 1))	213	sys.stdout.write("Selection[%s]: " % str(position + 1))
214	else:	214	else:
215	sys.stdout.write("Selection: ")	215	sys.stdout.write("Selection: ")
216	inp = sys.stdin.readline()	216	inp = sys.stdin.readline()
217		217
218	if (not inp):	218	if (not inp):
219	raise EOFError	219	raise EOFError
220		220
221	if (not inp.strip()):	221	if (not inp.strip()):
222	if (position != None):	222	if (position != None):
223	return (None, position)	223	return (None, position)
224	continue	224	continue
225		225
226	if (inp.strip() == 'q'):	226	if (inp.strip() == 'q'):
227	return ('cancel', None)	227	return ('cancel', None)
228		228
229	try:	229	try:
230	choice = int(inp.strip())	230	choice = int(inp.strip())
231	except ValueError:	231	except ValueError:
232	continue	232	continue
233		233
234	if (choice == 0):	234	if (choice == 0):
235	return ('done', 0)	235	return ('done', 0)
236		236
237	if (choice < 1) or (choice > len(options)):	237	if (choice < 1) or (choice > len(options)):
238	continue	238	continue
239		239
240	return (None, choice - 1)	240	return (None, choice - 1)
241		241
242	def error_dialog(screen, title, msg):	242	def error_dialog(screen, title, msg):
243	"Print error dialog"	243	"Print error dialog"
244		244
245	width = len(msg)	245	width = len(msg)
246		246
247	if (newt):	247	if (newt):
248	width = width_fix(screen, width)	248	width = width_fix(screen, width)
249		249
250	buttonbar = snack.ButtonBar(screen, ['Ok'])	250	buttonbar = snack.ButtonBar(screen, ['Ok'])
251	textbox = snack.TextboxReflowed(width, msg)	251	textbox = snack.TextboxReflowed(width, msg)
252		252
253	grid = snack.GridForm(screen, title, 1, 2)	253	grid = snack.GridForm(screen, title, 1, 2)
254	grid.add(textbox, 0, 0, padding = (0, 0, 0, 1))	254	grid.add(textbox, 0, 0, padding = (0, 0, 0, 1))
255	grid.add(buttonbar, 0, 1, growx = 1)	255	grid.add(buttonbar, 0, 1, growx = 1)
256	grid.runOnce()	256	grid.runOnce()
257	elif (dialog):	257	elif (dialog):
258	call_dlg(dlgcmd, '--title', title, '--msgbox', msg, '6', str(width + width_extra))	258	call_dlg(dlgcmd, '--title', title, '--msgbox', msg, '6', str(width + width_extra))
259		259	else:
260	sys.stdout.write("\n%s: %s\n" % (title, msg))	260	sys.stdout.write("\n%s: %s\n" % (title, msg))
261		261

Subversion Repositories HelenOS

(root)/branches/dynload/tools/xtui.py – Rev 4341 → 4346