Mercurial > libervia-backend
view frontends/src/primitivus/xmlui.py @ 419:6c167a2e04b8
bridge: added generic D-Bus exception management + asyncCreateProfile method
author | Goffi <goffi@goffi.org> |
---|---|
date | Wed, 02 Nov 2011 22:47:59 +0100 |
parents | b1794cbb88e5 |
children | cf005701624b |
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#!/usr/bin/python # -*- coding: utf-8 -*- """ Primitivus: a SAT frontend Copyright (C) 2009, 2010, 2011 Jérôme Poisson (goffi@goffi.org) This program 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. This program 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 this program. If not, see <http://www.gnu.org/licenses/>. """ import urwid from urwid_satext import sat_widgets from logging import debug, info, warning, error from xml.dom import minidom class Pairs(urwid.WidgetWrap): def __init__(self, weight_0='1', weight_1='1'): self.idx = 0 self.weight_0 = weight_0 self.weight_1 = weight_1 columns = urwid.Columns([urwid.Text(''), urwid.Text('')]) #XXX: empty Text hack needed because Pile doesn't support empty list urwid.WidgetWrap.__init__(self,columns) def append(self, widget): pile = self._w.widget_list[self.idx] if isinstance(pile, urwid.Text): self._w.widget_list[self.idx] = urwid.Pile([widget]) if self.idx == 1: self._w.set_focus(1) else: pile.widget_list.append(widget) pile.item_types.append(('weight',getattr(self,'weight_'+str(self.idx)))) self.idx = (self.idx + 1) % 2 class InvalidXMLUI(Exception): pass class XMLUI(urwid.WidgetWrap): def __init__(self, host, xml_data, title = None, options = [], misc={}): self.host = host self.title = title self.options = options self.misc = misc self.__dest = "window" self.ctrl_list = {} # usefull to access ctrl widget = self.constructUI(xml_data) urwid.WidgetWrap.__init__(self,widget) def __parseElems(self, node, parent): """Parse elements inside a <layout> tags, and add them to the parent""" for elem in node.childNodes: if elem.nodeName != "elem": message=_("Unmanaged tag") error(message) raise Exception(message) id = elem.getAttribute("id") name = elem.getAttribute("name") type = elem.getAttribute("type") value = elem.getAttribute("value") if elem.hasAttribute('value') else u'' if type=="empty": ctrl = urwid.Text('') elif type=="text": try: value = elem.childNodes[0].wholeText except IndexError: warning (_("text node has no child !")) ctrl = urwid.Text(value) elif type=="label": ctrl = urwid.Text(value+": ") elif type=="string": ctrl = sat_widgets.AdvancedEdit(edit_text = value) self.ctrl_list[name] = ({'type':type, 'control':ctrl}) elif type=="password": ctrl = sat_widgets.Password(edit_text = value) self.ctrl_list[name] = ({'type':type, 'control':ctrl}) elif type=="textbox": ctrl = sat_widgets.AdvancedEdit(edit_text = value, multiline=True) self.ctrl_list[name] = ({'type':type, 'control':ctrl}) elif type=="bool": ctrl = urwid.CheckBox('', state = value=="true") self.ctrl_list[name] = ({'type':type, 'control':ctrl}) elif type=="list": style=[] if elem.getAttribute("multi")=='yes' else ['single'] ctrl = sat_widgets.List(options=[option.getAttribute("value") for option in elem.getElementsByTagName("option")], style=style) self.ctrl_list[name] = ({'type':type, 'control':ctrl}) elif type=="button": callback_id = elem.getAttribute("callback_id") ctrl = sat_widgets.CustomButton(value, on_press=self.onButtonPress) ctrl.param_id = (callback_id,[field.getAttribute('name') for field in elem.getElementsByTagName("field_back")]) else: error(_("FIXME FIXME FIXME: type [%s] is not implemented") % type) #FIXME ! raise NotImplementedError if self.type == 'param': if isinstance(ctrl,urwid.Edit) or isinstance(ctrl,urwid.CheckBox): urwid.connect_signal(ctrl,'change',self.onParamChange) ctrl._param_category = self._current_category ctrl._param_name = name parent.append(ctrl) def __parseChilds(self, current, elem, wanted = ['layout'], data = None): """Recursively parse childNodes of an elemen @param current: widget container with 'append' method @param elem: element from which childs will be parsed @param wanted: list of tag names that can be present in the childs to be SàT XMLUI compliant""" for node in elem.childNodes: if wanted and not node.nodeName in wanted: raise InvalidXMLUI if node.nodeName == "layout": type = node.getAttribute('type') if type == "tabs": tab_cont = sat_widgets.TabsContainer() self.__parseChilds(current, node, ['category'], tab_cont) current.append(tab_cont) elif type == "vertical": self.__parseElems(node, current) elif type == "pairs": pairs = Pairs() self.__parseElems(node, pairs) current.append(pairs) else: warning(_("Unknown layout, using default one")) self.__parseElems(node, current) elif node.nodeName == "category": name = node.getAttribute('name') label = node.getAttribute('label') if not name or not isinstance(data,sat_widgets.TabsContainer): raise InvalidXMLUI if self.type == 'param': self._current_category = name #XXX: awful hack because params need category and we don't keep parent tab_cont = data listbox = tab_cont.addTab(label or name) self.__parseChilds(listbox.body, node, ['layout']) else: message=_("Unknown tag") error(message) raise NotImplementedError def constructUI(self, xml_data): ret_wid = urwid.ListBox(urwid.SimpleListWalker([])) cat_dom = minidom.parseString(xml_data.encode('utf-8')) top=cat_dom.documentElement self.type = top.getAttribute("type") self.title = top.getAttribute("title") or self.title if top.nodeName != "sat_xmlui" or not self.type in ['form', 'param', 'window']: raise InvalidXMLUI if self.type == 'param': self.param_changed = set() self.__parseChilds(ret_wid.body, cat_dom.documentElement) assert ret_wid.body if isinstance(ret_wid.body[0],sat_widgets.TabsContainer): ret_wid = ret_wid.body[0] #xxx: awfull hack cause TabsContainer is a BoxWidget, can't be inside a ListBox if self.type == 'form': buttons = [] buttons.append(urwid.Button(_('Submit'),self.onFormSubmitted)) if not 'NO_CANCEL' in self.options: buttons.append(urwid.Button(_('Cancel'),self.onFormCancelled)) max_len = max([len(button.get_label()) for button in buttons]) grid_wid = urwid.GridFlow(buttons,max_len+4,1,0,'center') ret_wid.body.append(grid_wid) elif self.type == 'param': assert(isinstance(ret_wid,sat_widgets.TabsContainer)) buttons = [] buttons.append(sat_widgets.CustomButton(_('Save'),self.onSaveParams)) buttons.append(sat_widgets.CustomButton(_('Cancel'),lambda x:self.host.removeWindow())) max_len = max([button.getSize() for button in buttons]) grid_wid = urwid.GridFlow(buttons,max_len,1,0,'center') ret_wid.addFooter(grid_wid) return ret_wid def show(self,show_type = 'popup'): """Show the constructed UI @param show_type: how to show the UI: - popup - window""" self.__dest = "popup" decorated = sat_widgets.LabelLine(self, sat_widgets.SurroundedText(self.title or '')) if show_type == 'popup': self.host.showPopUp(decorated) elif show_type == 'window': self.host.addWindow(decorated) else: error(_('INTERNAL ERROR: Unmanaged show_type (%s)') % show_type) assert(False) self.host.redraw() ##EVENTS## def onButtonPress(self, button): callback_id, fields = button.param_id data = {"callback_id":callback_id} for field in fields: ctrl = self.ctrl_list[field] if isinstance(ctrl['control'],sat_widgets.List): data[field] = '\t'.join(ctrl['control'].getSelectedValues()) else: data[field] = ctrl['control'].getValue() id = self.host.bridge.launchAction("button", data, profile_key = self.host.profile) self.host.current_action_ids.add(id) def onParamChange(self, widget, extra=None): """Called when type is param and a widget to save is modified""" assert(self.type == "param") self.param_changed.add(widget) def onFormSubmitted(self, button): data = [] for ctrl_name in self.ctrl_list: ctrl = self.ctrl_list[ctrl_name] if isinstance(ctrl['control'], sat_widgets.List): data.append((ctrl_name, ctrl['control'].getSelectedValue())) elif isinstance(ctrl['control'], urwid.CheckBox): data.append((ctrl_name, "true" if ctrl['control'].get_state() else "false")) else: data.append((ctrl_name, ctrl['control'].get_edit_text())) if self.misc.has_key('action_back'): #FIXME FIXME FIXME: WTF ! Must be cleaned raise NotImplementedError self.host.debug() elif self.misc.has_key('callback'): self.misc['callback'](data) else: warning (_("The form data is not sent back, the type is not managed properly")) self.host.removePopUp() def onFormCancelled(self, button): if self.__dest == 'window': self.host.removeWindow() else: self.host.removePopUp() def onSaveParams(self, button): for ctrl in self.param_changed: if isinstance(ctrl, urwid.CheckBox): value = "true" if ctrl.get_state() else "false" else: value = ctrl.get_edit_text() self.host.bridge.setParam(ctrl._param_name, value, ctrl._param_category, profile_key = self.host.profile) self.host.removeWindow()