root / image_creator / dialog_wizard.py @ 09ed3d46
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#!/usr/bin/env python
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# Copyright 2012 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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import dialog |
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class WizardPage: |
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NEXT = 1
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PREV = -1
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def __init__(self, session, title): |
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self.session = session
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self.title = title
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def run(self): |
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raise NotImplementedError |
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class ImageName(WizardPage): |
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def run(self): |
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d = self.session['dialog'] |
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w = self.session['wizard'] |
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init = w['ImageName'] if 'ImageName' in w else "" |
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while 1: |
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(code, answer) = d.inputbox("Please provide a name for the image:",
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init=init, width=INPUTBOX_WIDTH, |
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ok_label="Next", cancel="Back", |
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title=self.title)
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if code in (d.DIALOG_CANCEL, d.DIALOG_ESC): |
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return self.PREV |
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name = answer.strip() |
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if len(name) == 0: |
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d.msgbox("Image name cannot be empty", width=MSGBOX_WIDTH)
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continue
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w['ImageName'] = name
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break
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return self.NEXT |
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class ImageDescription(WizardPage): |
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def run(self): |
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d = self.session['dialog'] |
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w = self.session['wizard'] |
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init = w['ImageDescription'] if 'ImageDescription' in w else "" |
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while 1: |
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(code, answer) = d.inputbox( |
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"Please provide a description for the image:",
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init=init, width=INPUTBOX_WIDTH, |
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ok_label="Next", cancel="Back", |
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title=self.title)
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if code in (d.DIALOG_CANCEL, d.DIALOG_ESC): |
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return self.PREV |
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name = answer.strip() |
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if len(filename) == 0: |
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# Description is allowed to be empty
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del w['ImageDescription'] |
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else:
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w['ImageDescription'] = name
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break
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return self.NEXT |
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def wizard(session): |
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session['wizard'] = {}
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steps = [] |
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steps.append(ImageName(session, "(1/5) Image Name"))
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steps.append(ImageDescription(session, "(2/5) Image Description"))
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return True |
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# vim: set sta sts=4 shiftwidth=4 sw=4 et ai :
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