Mercurial > libervia-backend
annotate sat_frontends/jp/xmlui_manager.py @ 2846:58ea675d0f05
quick frontend (app): added AUTO_RESYNC attribute in QuickApp, when set (default) the resync method is called on all widgets automatically:
if AUTO_RESYNC is False, frontend must call itself the resync method.
This is useful to improve performance, resynchronising all widgets at once may be resource intensive, and it may be more efficient to resync a widget only when it is visible.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 10 Mar 2019 18:02:42 +0100 |
| parents | 442ab697f831 |
| children | 18a98a541f7a |
| rev | line source |
|---|---|
| 2408 | 1 #!/usr/bin/env python2 |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
| 4 # JP: a SàT frontend | |
| 2771 | 5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org) |
| 2408 | 6 |
| 7 # This program is free software: you can redistribute it and/or modify | |
| 8 # it under the terms of the GNU Affero General Public License as published by | |
| 9 # the Free Software Foundation, either version 3 of the License, or | |
| 10 # (at your option) any later version. | |
| 11 | |
| 12 # This program is distributed in the hope that it will be useful, | |
| 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 # GNU Affero General Public License for more details. | |
| 16 | |
| 17 # You should have received a copy of the GNU Affero General Public License | |
| 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 from sat.core.log import getLogger | |
|
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21 |
| 2408 | 22 log = getLogger(__name__) |
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23 from sat_frontends.tools import xmlui as xmlui_base |
| 2408 | 24 from sat_frontends.jp.constants import Const as C |
| 25 from sat.tools.common.ansi import ANSI as A | |
| 26 from sat.core.i18n import _ | |
| 27 from functools import partial | |
| 28 | |
| 29 # workflow constants | |
| 30 | |
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31 SUBMIT = "SUBMIT" # submit form |
| 2408 | 32 |
| 33 | |
| 34 ## Widgets ## | |
| 35 | |
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36 |
| 2408 | 37 class Base(object): |
| 38 """Base for Widget and Container""" | |
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39 |
| 2408 | 40 type = None |
| 41 _root = None | |
| 42 | |
| 43 def __init__(self, xmlui_parent): | |
| 44 self.xmlui_parent = xmlui_parent | |
| 45 self.host = self.xmlui_parent.host | |
| 46 | |
| 47 @property | |
| 48 def root(self): | |
| 49 """retrieve main XMLUI parent class""" | |
| 50 if self._root is not None: | |
| 51 return self._root | |
| 52 root = self | |
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53 while not isinstance(root, xmlui_base.XMLUIBase): |
| 2408 | 54 root = root.xmlui_parent |
| 55 self._root = root | |
| 56 return root | |
| 57 | |
| 58 def disp(self, *args, **kwargs): | |
| 59 self.host.disp(*args, **kwargs) | |
| 60 | |
| 61 | |
| 62 class Widget(Base): | |
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63 category = u"widget" |
| 2408 | 64 enabled = True |
| 65 | |
| 66 @property | |
| 67 def name(self): | |
| 68 return self._xmlui_name | |
| 69 | |
| 70 def show(self): | |
| 71 """display current widget | |
| 72 | |
| 73 must be overriden by subclasses | |
| 74 """ | |
| 75 raise NotImplementedError(self.__class__) | |
| 76 | |
| 77 def verboseName(self, elems=None, value=None): | |
| 78 """add name in color to the elements | |
| 79 | |
| 80 helper method to display name which can then be used to automate commands | |
| 81 elems is only modified if verbosity is > 0 | |
| 82 @param elems(list[unicode], None): elements to display | |
| 83 None to display name directly | |
| 84 @param value(unicode, None): value to show | |
| 85 use self.name if None | |
| 86 """ | |
| 87 if value is None: | |
| 88 value = self.name | |
| 89 if self.host.verbosity: | |
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90 to_disp = [ |
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91 A.FG_MAGENTA, |
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92 u" " if elems else u"", |
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93 u"({})".format(value), |
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94 A.RESET, |
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95 ] |
| 2408 | 96 if elems is None: |
| 97 self.host.disp(A.color(*to_disp)) | |
| 98 else: | |
| 99 elems.extend(to_disp) | |
| 100 | |
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101 |
| 2408 | 102 class ValueWidget(Widget): |
| 103 def __init__(self, xmlui_parent, value): | |
| 104 super(ValueWidget, self).__init__(xmlui_parent) | |
| 105 self.value = value | |
| 106 | |
| 107 @property | |
| 108 def values(self): | |
| 109 return [self.value] | |
| 110 | |
| 111 | |
| 112 class InputWidget(ValueWidget): | |
| 113 def __init__(self, xmlui_parent, value, read_only=False): | |
| 114 super(InputWidget, self).__init__(xmlui_parent, value) | |
| 115 self.read_only = read_only | |
| 116 | |
| 117 def _xmluiGetValue(self): | |
| 118 return self.value | |
| 119 | |
| 120 | |
| 121 class OptionsWidget(Widget): | |
| 122 def __init__(self, xmlui_parent, options, selected, style): | |
| 123 super(OptionsWidget, self).__init__(xmlui_parent) | |
| 124 self.options = options | |
| 125 self.selected = selected | |
| 126 self.style = style | |
| 127 | |
| 128 @property | |
| 129 def values(self): | |
| 130 return self.selected | |
| 131 | |
| 132 @values.setter | |
| 133 def values(self, values): | |
| 134 self.selected = values | |
| 135 | |
| 136 @property | |
| 137 def value(self): | |
| 138 return self.selected[0] | |
| 139 | |
| 140 @value.setter | |
| 141 def value(self, value): | |
| 142 self.selected = [value] | |
| 143 | |
| 144 def _xmluiSelectValue(self, value): | |
| 145 self.value = value | |
| 146 | |
| 147 def _xmluiSelectValues(self, values): | |
| 148 self.values = values | |
| 149 | |
| 150 def _xmluiGetSelectedValues(self): | |
| 151 return self.values | |
| 152 | |
| 153 @property | |
| 154 def labels(self): | |
| 155 """return only labels from self.items""" | |
| 156 for value, label in self.items: | |
| 157 yield label | |
| 158 | |
| 159 @property | |
| 160 def items(self): | |
| 161 """return suitable items, according to style""" | |
| 162 no_select = self.no_select | |
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163 for value, label in self.options: |
| 2408 | 164 if no_select or value in self.selected: |
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165 yield value, label |
| 2408 | 166 |
| 167 @property | |
| 168 def inline(self): | |
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169 return u"inline" in self.style |
| 2408 | 170 |
| 171 @property | |
| 172 def no_select(self): | |
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173 return u"noselect" in self.style |
| 2408 | 174 |
| 175 | |
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176 class EmptyWidget(xmlui_base.EmptyWidget, Widget): |
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177 |
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178 def __init__(self, xmlui_parent): |
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179 Widget.__init__(self, xmlui_parent) |
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180 |
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181 def show(self): |
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182 self.host.disp(u'') |
| 2408 | 183 |
| 184 | |
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185 class TextWidget(xmlui_base.TextWidget, ValueWidget): |
| 2408 | 186 type = u"text" |
| 187 | |
| 188 def show(self): | |
| 189 self.host.disp(self.value) | |
| 190 | |
| 191 | |
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192 class LabelWidget(xmlui_base.LabelWidget, ValueWidget): |
| 2408 | 193 type = u"label" |
| 194 | |
| 195 @property | |
| 196 def for_name(self): | |
| 197 try: | |
| 198 return self._xmlui_for_name | |
| 199 except AttributeError: | |
| 200 return None | |
| 201 | |
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202 def show(self, no_lf=False, ansi=u""): |
| 2408 | 203 """show label |
| 204 | |
| 205 @param no_lf(bool): same as for [JP.disp] | |
| 206 @param ansi(unicode): ansi escape code to print before label | |
| 207 """ | |
| 208 self.disp(A.color(ansi, self.value), no_lf=no_lf) | |
| 209 | |
| 210 | |
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211 class JidWidget(xmlui_base.JidWidget, TextWidget): |
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212 type = u"jid" |
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213 |
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214 class StringWidget(xmlui_base.StringWidget, InputWidget): |
| 2408 | 215 type = u"string" |
| 216 | |
| 217 def show(self): | |
| 218 if self.read_only: | |
| 219 self.disp(self.value) | |
| 220 else: | |
| 221 elems = [] | |
| 222 self.verboseName(elems) | |
| 223 if self.value: | |
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224 elems.append(_(u"(enter: {default})").format(default=self.value)) |
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225 elems.extend([C.A_HEADER, u"> "]) |
| 2408 | 226 value = raw_input(A.color(*elems)) |
| 227 if value: | |
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228 # TODO: empty value should be possible |
| 2408 | 229 # an escape key should be used for default instead of enter with empty value |
| 230 self.value = value | |
| 231 | |
| 232 | |
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233 class JidInputWidget(xmlui_base.JidInputWidget, StringWidget): |
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234 type = u"jid_input" |
| 2408 | 235 |
| 236 | |
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237 class TextBoxWidget(xmlui_base.TextWidget, StringWidget): |
| 2408 | 238 type = u"textbox" |
| 239 | |
| 240 | |
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241 class XHTMLBoxWidget(xmlui_base.XHTMLBoxWidget, StringWidget): |
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242 type = u"xhtmlbox" |
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243 |
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244 def show(self): |
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245 # FIXME: we use bridge in a blocking way as permitted by python-dbus |
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246 # this only for now to make it simpler, it must be refactored |
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247 # to use async when jp will be fully async (expected for 0.8) |
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248 self.value = self.host.bridge.syntaxConvert( |
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249 self.value, C.SYNTAX_XHTML, "markdown", False, self.host.profile) |
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250 super(XHTMLBoxWidget, self).show() |
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251 |
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252 |
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253 class ListWidget(xmlui_base.ListWidget, OptionsWidget): |
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254 type = u"list" |
| 2408 | 255 # TODO: handle flags, notably multi |
| 256 | |
| 257 def show(self): | |
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258 if self.root.values_only: |
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259 for value in self.values: |
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260 self.disp(self.value) |
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261 return |
| 2408 | 262 if not self.options: |
| 263 return | |
| 264 | |
| 265 # list display | |
| 266 self.verboseName() | |
| 267 | |
| 268 for idx, (value, label) in enumerate(self.options): | |
| 269 elems = [] | |
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270 if not self.root.read_only: |
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271 elems.extend([C.A_SUBHEADER, unicode(idx), A.RESET, u": "]) |
| 2408 | 272 elems.append(label) |
| 273 self.verboseName(elems, value) | |
| 274 self.disp(A.color(*elems)) | |
| 275 | |
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276 if self.root.read_only: |
| 2408 | 277 return |
| 278 | |
| 279 if len(self.options) == 1: | |
| 280 # we have only one option, no need to ask | |
| 281 self.value = self.options[0][0] | |
| 282 return | |
| 283 | |
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284 # we ask use to choose an option |
| 2408 | 285 choice = None |
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286 limit_max = len(self.options) - 1 |
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287 while choice is None or choice < 0 or choice > limit_max: |
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288 choice = raw_input( |
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289 A.color(C.A_HEADER, _(u"your choice (0-{max}): ").format(max=limit_max)) |
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290 ) |
| 2408 | 291 try: |
| 292 choice = int(choice) | |
| 293 except ValueError: | |
| 294 choice = None | |
| 295 self.value = self.options[choice][0] | |
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296 self.disp("") |
| 2408 | 297 |
| 298 | |
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299 class BoolWidget(xmlui_base.BoolWidget, InputWidget): |
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300 type = u"bool" |
| 2408 | 301 |
| 302 def show(self): | |
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303 disp_true = A.color(A.FG_GREEN, u"TRUE") |
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304 disp_false = A.color(A.FG_RED, u"FALSE") |
| 2408 | 305 if self.read_only: |
| 306 self.disp(disp_true if self.value else disp_false) | |
| 307 else: | |
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308 self.disp(A.color(C.A_HEADER, u"0: ", |
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309 disp_false, A.RESET, |
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310 u" *" if not self.value else u"")) |
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311 self.disp(A.color(C.A_HEADER, u"1: ", |
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312 disp_true, A.RESET, |
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313 u" *" if self.value else u"")) |
| 2408 | 314 choice = None |
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315 while choice not in ("0", "1"): |
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316 elems = [C.A_HEADER, _(u"your choice (0,1): ")] |
| 2408 | 317 self.verboseName(elems) |
| 318 choice = raw_input(A.color(*elems)) | |
| 319 self.value = bool(int(choice)) | |
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320 self.disp("") |
| 2408 | 321 |
| 322 def _xmluiGetValue(self): | |
| 323 return C.boolConst(self.value) | |
| 324 | |
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325 |
| 2408 | 326 ## Containers ## |
| 327 | |
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328 |
| 2408 | 329 class Container(Base): |
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330 category = u"container" |
| 2408 | 331 |
| 332 def __init__(self, xmlui_parent): | |
| 333 super(Container, self).__init__(xmlui_parent) | |
| 334 self.children = [] | |
| 335 | |
| 336 def __iter__(self): | |
| 337 return iter(self.children) | |
| 338 | |
| 339 def _xmluiAppend(self, widget): | |
| 340 self.children.append(widget) | |
| 341 | |
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342 def _xmluiRemove(self, widget): |
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343 self.children.remove(widget) |
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344 |
| 2408 | 345 def show(self): |
| 346 for child in self.children: | |
| 347 child.show() | |
| 348 | |
| 349 | |
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350 class VerticalContainer(xmlui_base.VerticalContainer, Container): |
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351 type = u"vertical" |
| 2408 | 352 |
| 353 | |
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354 class PairsContainer(xmlui_base.PairsContainer, Container): |
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355 type = u"pairs" |
| 2408 | 356 |
| 357 | |
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358 class LabelContainer(xmlui_base.PairsContainer, Container): |
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359 type = u"label" |
| 2408 | 360 |
| 361 def show(self): | |
| 362 for child in self.children: | |
| 363 no_lf = False | |
| 364 # we check linked widget type | |
| 365 # to see if we want the label on the same line or not | |
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366 if child.type == u"label": |
| 2408 | 367 for_name = child.for_name |
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368 if for_name: |
| 2408 | 369 for_widget = self.root.widgets[for_name] |
| 370 wid_type = for_widget.type | |
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371 if self.root.values_only or wid_type in ( |
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372 "text", |
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373 "string", |
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374 "jid_input", |
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375 ): |
| 2408 | 376 no_lf = True |
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377 elif wid_type == "bool" and for_widget.read_only: |
| 2408 | 378 no_lf = True |
| 379 child.show(no_lf=no_lf, ansi=A.FG_CYAN) | |
| 380 else: | |
| 381 child.show() | |
| 382 | |
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383 |
| 2408 | 384 ## Dialogs ## |
| 385 | |
| 386 | |
| 387 class Dialog(object): | |
| 388 def __init__(self, xmlui_parent): | |
| 389 self.xmlui_parent = xmlui_parent | |
| 390 self.host = self.xmlui_parent.host | |
| 391 | |
| 392 def disp(self, *args, **kwargs): | |
| 393 self.host.disp(*args, **kwargs) | |
| 394 | |
| 395 def show(self): | |
| 396 """display current dialog | |
| 397 | |
| 398 must be overriden by subclasses | |
| 399 """ | |
| 400 raise NotImplementedError(self.__class__) | |
| 401 | |
| 402 | |
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403 class NoteDialog(xmlui_base.NoteDialog, Dialog): |
| 2408 | 404 def show(self): |
| 405 # TODO: handle title and level | |
| 406 self.disp(self.message) | |
| 407 | |
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408 def __init__(self, xmlui_parent, title, message, level): |
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409 Dialog.__init__(self, xmlui_parent) |
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410 xmlui_base.NoteDialog.__init__(self, xmlui_parent) |
| 2408 | 411 self.title, self.message, self.level = title, message, level |
| 412 | |
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413 |
| 2408 | 414 ## Factory ## |
| 415 | |
| 416 | |
| 417 class WidgetFactory(object): | |
| 418 def __getattr__(self, attr): | |
| 419 if attr.startswith("create"): | |
| 420 cls = globals()[attr[6:]] | |
| 421 return cls | |
| 422 | |
| 423 | |
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424 class XMLUIPanel(xmlui_base.XMLUIPanel): |
| 2408 | 425 widget_factory = WidgetFactory() |
| 426 _actions = 0 # use to keep track of bridge's launchAction calls | |
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427 read_only = False |
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428 values_only = False |
| 2408 | 429 workflow = None |
| 430 _submit_cb = None | |
| 431 | |
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432 def __init__(self, host, parsed_dom, title=None, flags=None, callback=None, |
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433 ignore=None, whitelist=None, profile=None): |
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434 xmlui_base.XMLUIPanel.__init__( |
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435 self, |
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436 host, |
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437 parsed_dom, |
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438 title=title, |
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439 flags=flags, |
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440 ignore=ignore, |
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441 whitelist=whitelist, |
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442 profile=host.profile, |
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443 ) |
| 2408 | 444 self.submitted = False |
| 445 | |
| 446 @property | |
| 447 def command(self): | |
| 448 return self.host.command | |
| 449 | |
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450 def show(self, workflow=None, read_only=False, values_only=False): |
| 2408 | 451 """display the panel |
| 452 | |
| 453 @param workflow(list, None): command to execute if not None | |
| 454 put here for convenience, the main workflow is the class attribute | |
| 455 (because workflow can continue in subclasses) | |
| 456 command are a list of consts or lists: | |
| 457 - SUBMIT is the only constant so far, it submits the XMLUI | |
| 458 - list must contain widget name/widget value to fill | |
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459 @param read_only(bool): if True, don't request values |
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460 @param values_only(bool): if True, only show select values (imply read_only) |
| 2408 | 461 """ |
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462 self.read_only = read_only |
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463 self.values_only = values_only |
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464 if self.values_only: |
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465 self.read_only = True |
| 2408 | 466 if workflow: |
| 467 XMLUIPanel.workflow = workflow | |
| 468 if XMLUIPanel.workflow: | |
| 469 self.runWorkflow() | |
| 470 else: | |
| 471 self.main_cont.show() | |
| 472 | |
| 473 def runWorkflow(self): | |
| 474 """loop into workflow commands and execute commands | |
| 475 | |
| 476 SUBMIT will interrupt workflow (which will be continue on callback) | |
| 477 @param workflow(list): same as [show] | |
| 478 """ | |
| 479 workflow = XMLUIPanel.workflow | |
| 480 while True: | |
| 481 try: | |
| 482 cmd = workflow.pop(0) | |
| 483 except IndexError: | |
| 484 break | |
| 485 if cmd == SUBMIT: | |
| 486 self.onFormSubmitted() | |
| 487 self.submit_id = None # avoid double submit | |
| 488 return | |
| 489 elif isinstance(cmd, list): | |
| 490 name, value = cmd | |
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491 widget = self.widgets[name] |
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492 if widget.type == "bool": |
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493 value = C.bool(value) |
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494 widget.value = value |
| 2408 | 495 self.show() |
| 496 | |
| 497 def submitForm(self, callback=None): | |
| 498 XMLUIPanel._submit_cb = callback | |
| 499 self.onFormSubmitted() | |
| 500 | |
| 501 def onFormSubmitted(self, ignore=None): | |
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502 # self.submitted is a Q&D workaround to avoid |
| 2408 | 503 # double submit when a workflow is set |
| 504 if self.submitted: | |
| 505 return | |
| 506 self.submitted = True | |
| 507 super(XMLUIPanel, self).onFormSubmitted(ignore) | |
| 508 | |
| 509 def _xmluiClose(self): | |
| 510 pass | |
| 511 | |
| 512 def _launchActionCb(self, data): | |
| 513 XMLUIPanel._actions -= 1 | |
| 514 assert XMLUIPanel._actions >= 0 | |
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515 if u"xmlui" in data: |
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516 xmlui_raw = data["xmlui"] |
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517 xmlui = create(self.host, xmlui_raw) |
| 2408 | 518 xmlui.show() |
| 519 if xmlui.submit_id: | |
| 520 xmlui.onFormSubmitted() | |
| 521 # TODO: handle data other than XMLUI | |
| 522 if not XMLUIPanel._actions: | |
| 523 if self._submit_cb is None: | |
| 524 self.host.quit() | |
| 525 else: | |
| 526 self._submit_cb() | |
| 527 | |
| 528 def _xmluiLaunchAction(self, action_id, data): | |
| 529 XMLUIPanel._actions += 1 | |
| 530 self.host.bridge.launchAction( | |
| 531 action_id, | |
| 532 data, | |
| 533 self.profile, | |
| 534 callback=self._launchActionCb, | |
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535 errback=partial( |
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536 self.command.errback, |
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537 msg=_(u"can't launch XMLUI action: {}"), |
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538 exit_code=C.EXIT_BRIDGE_ERRBACK, |
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539 ), |
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540 ) |
| 2408 | 541 |
| 542 | |
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543 class XMLUIDialog(xmlui_base.XMLUIDialog): |
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544 type = "dialog" |
| 2408 | 545 dialog_factory = WidgetFactory() |
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546 read_only = False |
| 2408 | 547 |
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548 def show(self, __=None): |
| 2408 | 549 self.dlg.show() |
| 550 | |
| 551 def _xmluiClose(self): | |
| 552 pass | |
| 553 | |
| 554 | |
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555 create = partial(xmlui_base.create, class_map={ |
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556 xmlui_base.CLASS_PANEL: XMLUIPanel, |
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557 xmlui_base.CLASS_DIALOG: XMLUIDialog}) |