bin/lint-ui.py

   1 #!/usr/bin/env python3
   2 #
   3 # This file is part of the LibreOffice project.
   4 #
   5 # This Source Code Form is subject to the terms of the Mozilla Public
   6 # License, v. 2.0. If a copy of the MPL was not distributed with this
   7 # file, you can obtain one at http://mozilla.org/MPL/2.0/.
   8 #
   9 # Takes a LibreOffice .ui file and provides linting tips for maintaining
  10 # a consistent look for dialogs
  11
  12 import sys
  13 # Force python XML parser not faster C accelerators
  14 # because we can't hook the C implementation
  15 sys.modules['_elementtree'] = None
  16 import xml.etree.ElementTree as ET
  17 import re
  18
  19 DEFAULT_WARNING_STR = 'Lint assertion failed'
  20
  21 POSSIBLE_TOP_LEVEL_WIDGETS = ['GtkDialog', 'GtkMessageDialog', 'GtkBox', 'GtkFrame', 'GtkGrid',
  22     'GtkAssistant', 'GtkToolbar', 'GtkNotebook', 'GtkPopover', 'GtkWindow', 'GtkPaned', 'GtkScrolledWindow']
  23 IGNORED_TOP_LEVEL_WIDGETS = ['GtkAdjustment', 'GtkImage', 'GtkListStore', 'GtkSizeGroup', 'GtkMenu', 'GtkTextBuffer', 'GtkTreeStore']
  24 BORDER_WIDTH = '6'
  25 BUTTON_BOX_SPACING = '12'
  26 ALIGNMENT_TOP_PADDING = '6'
  27 #https://developer.gnome.org/hig-book/3.0/windows-alert.html.en#alert-spacing
  28 MESSAGE_BOX_SPACING = '24'
  29 MESSAGE_BORDER_WIDTH = '12'
  30
  31 IGNORED_WORDS = ['the', 'of', 'to', 'for', 'a', 'and', 'as', 'from', 'on', 'into', 'by', 'at', 'or', 'do', 'in', 'when', 'no']
  32
  33 # Hook the XML parser and add line number attributes
  34 class LineNumberingParser(ET.XMLParser):
  35     def _start(self, *args, **kwargs):
  36         # Here we assume the default XML parser which is expat
  37         # and copy its element position attributes into output Elements
  38         element = super(self.__class__, self)._start(*args, **kwargs)
  39         element._start_line_number = self.parser.CurrentLineNumber
  40         element._start_column_number = self.parser.CurrentColumnNumber
  41         element._start_byte_index = self.parser.CurrentByteIndex
  42         return element
  43
  44     def _end(self, *args, **kwargs):
  45         element = super(self.__class__, self)._end(*args, **kwargs)
  46         element._end_line_number = self.parser.CurrentLineNumber
  47         element._end_column_number = self.parser.CurrentColumnNumber
  48         element._end_byte_index = self.parser.CurrentByteIndex
  49         return element
  50
  51
  52 def lint_assert(predicate, warning=DEFAULT_WARNING_STR, node=None):
  53     if not predicate:
  54         if not(node is None):
  55             print(sys.argv[1] + ":" + str(node._start_line_number) + ": " + warning)
  56         else:
  57             print(sys.argv[1] + ": " + warning)
  58
  59 def check_top_level_widget(element):
  60     # check widget type
  61     widget_type = element.attrib['class']
  62     if not(widget_type in POSSIBLE_TOP_LEVEL_WIDGETS):
  63         return
  64
  65     # check border_width property
  66     border_width_properties = element.findall("property[@name='border_width']")
  67     # TODO reenable when we are ready to fix
  68     #if len(border_width_properties) < 1:
  69     #    lint_assert(False, "No border_width set on top level widget. Should probably be " + BORDER_WIDTH)
  70     #if len(border_width_properties) == 1:
  71     #    border_width = border_width_properties[0]
  72     #    if widget_type == "GtkMessageDialog":
  73     #        lint_assert(border_width.text == MESSAGE_BORDER_WIDTH,
  74     #                    "Top level 'border_width' property should be " + MESSAGE_BORDER_WIDTH, border_width)
  75     #    else:
  76     #        lint_assert(border_width.text == BORDER_WIDTH,
  77     #                    "Top level 'border_width' property should be " + BORDER_WIDTH, border_width)
  78
  79     # check that any widget which has 'has-default' also has 'can-default'
  80     for widget in element.findall('.//object'):
  81         if not widget.attrib['class']:
  82             continue
  83         widget_type = widget.attrib['class']
  84         has_defaults = widget.findall("./property[@name='has_default']")
  85         if len(has_defaults) > 0 and has_defaults[0].text == "True":
  86             can_defaults = widget.findall("./property[@name='can_default']")
  87             lint_assert(len(can_defaults)>0 and can_defaults[0].text == "True",
  88                 "has_default without can_default in " + widget_type + " with id = '" + widget.attrib['id'] + "'", widget)
  89
  90 def check_button_box_spacing(element):
  91     spacing = element.findall("property[@name='spacing']")
  92     lint_assert(len(spacing) > 0 and spacing[0].text == BUTTON_BOX_SPACING,
  93                 "Button box 'spacing' should be " + BUTTON_BOX_SPACING,
  94                 element)
  95
  96 def check_message_box_spacing(element):
  97     spacing = element.findall("property[@name='spacing']")
  98     lint_assert(len(spacing) > 0 and spacing[0].text == MESSAGE_BOX_SPACING,
  99                 "Message box 'spacing' should be " + MESSAGE_BOX_SPACING,
 100                 element)
 101
 102 def check_radio_buttons(root):
 103     radios = [element for element in root.findall('.//object') if element.attrib['class'] == 'GtkRadioButton']
 104     for radio in radios:
 105         radio_underlines = radio.findall("./property[@name='use_underline']")
 106         assert len(radio_underlines) <= 1
 107         if len(radio_underlines) < 1:
 108             lint_assert(False, "No use_underline in GtkRadioButton with id = '" + radio.attrib['id'] + "'", radio)
 109
 110 def check_adjustments(root):
 111     adjustments = [element for element in root.findall('.//object') if element.attrib['class'] == 'GtkAdjustment']
 112     for adjustment in adjustments:
 113         uppers = adjustment.findall("./property[@name='upper']")
 114         assert len(uppers) <= 1
 115         if len(uppers) < 1:
 116             lint_assert(False, "No upper in GtkAdjustment with id = '" + adjustment.attrib['id'] + "'", adjustment)
 117
 118 def check_menu_buttons(root):
 119     buttons = [element for element in root.findall('.//object') if element.attrib['class'] == "GtkMenuButton"]
 120     for button in buttons:
 121         labels = button.findall("./property[@name='label']")
 122         images = button.findall("./property[@name='image']")
 123         assert(len(labels) <= 1)
 124         if len(labels) < 1 and len(images) < 1:
 125             if sys.argv[1] == "vcl/uiconfig/ui/combobox.ui" and button.attrib['id'] == "overlaybutton":
 126                 pass
 127             else:
 128                 lint_assert(False, "No label in GtkMenuButton with id = '" + button.attrib['id'] + "'", button)
 129
 130 def check_check_buttons(root):
 131     radios = [element for element in root.findall('.//object') if element.attrib['class'] == 'GtkCheckButton']
 132     for radio in radios:
 133         radio_underlines = radio.findall("./property[@name='use_underline']")
 134         assert len(radio_underlines) <= 1
 135         if len(radio_underlines) < 1:
 136             lint_assert(False, "No use_underline in GtkCheckButton with id = '" + radio.attrib['id'] + "'", radio)
 137
 138 def check_frames(root):
 139     frames = [element for element in root.findall('.//object') if element.attrib['class'] == 'GtkFrame']
 140     for frame in frames:
 141         frame_alignments = frame.findall("./child/object[@class='GtkAlignment']")
 142         if len(frame_alignments) > 0:
 143             lint_assert(False, "Deprecated GtkAlignment in GtkFrame with id = '" + frame.attrib['id'] + "'", frame)
 144
 145 def check_title_labels(root):
 146     labels = root.findall(".//child[@type='label']")
 147     for label in labels:
 148         title = label.find(".//property[@name='label']")
 149         if title is None:
 150             continue
 151         words = re.split(r'[^a-zA-Z0-9:_-]', title.text)
 152         first = True
 153         for word in words:
 154             if len(word) and word[0].islower() and (word not in IGNORED_WORDS) and not first:
 155                 context = title.attrib['context']
 156                 # exclude a couple of whole sentences
 157                 if sys.argv[1] == "cui/uiconfig/ui/optpathspage.ui" and context == "optpathspage|label1":
 158                     pass
 159                 elif sys.argv[1] == "dbaccess/uiconfig/ui/password.ui" and context == "password|label1":
 160                     pass
 161                 elif sys.argv[1] == "sc/uiconfig/scalc/ui/datastreams.ui" and context == "datastreams|label4":
 162                     pass
 163                 elif sys.argv[1] == "sc/uiconfig/scalc/ui/scgeneralpage.ui" and context == "scgeneralpage|label6":
 164                     pass
 165                 elif sys.argv[1] == "sfx2/uiconfig/ui/documentfontspage.ui" and context == "documentfontspage|fontScriptFrameLabel":
 166                     pass
 167                 elif sys.argv[1] == "sw/uiconfig/swriter/ui/testmailsettings.ui" and context == "testmailsettings|label8":
 168                     pass
 169                 elif sys.argv[1] == "sw/uiconfig/swriter/ui/optcomparison.ui" and context == "optcomparison|setting":
 170                     pass
 171                 elif sys.argv[1] == "sw/uiconfig/swriter/ui/optcompatpage.ui" and context == "optcompatpage|label11":
 172                     pass
 173                 elif sys.argv[1] == "sw/uiconfig/swriter/ui/optcaptionpage.ui" and context == "optcaptionpage|label1":
 174                     pass
 175                 elif sys.argv[1] == "sw/uiconfig/swriter/ui/mmresultemaildialog.ui" and context == "mmresultemaildialog|attachft":
 176                     pass
 177                 elif sys.argv[1] == "sw/uiconfig/swriter/ui/mailmerge.ui" and context == "mailmerge|singledocument":
 178                     pass
 179                 elif sys.argv[1] == "cui/uiconfig/ui/acorexceptpage.ui" and context == "acorexceptpage|label2":
 180                     pass
 181                 elif sys.argv[1] == "dbaccess/uiconfig/ui/dbwizmysqlintropage.ui" and context == "dbwizmysqlintropage|label1":
 182                     pass
 183                 else:
 184                     lint_assert(False, "The word '" + word + "' should be capitalized", label)
 185             first = False
 186
 187 def main():
 188     tree = ET.parse(sys.argv[1], parser=LineNumberingParser())
 189     root = tree.getroot()
 190
 191     if sys.argv[1] != "libreofficekit/qa/gtktiledviewer/gtv.ui":
 192         lint_assert('domain' in root.attrib, "interface needs to specify translation domain")
 193
 194     top_level_widgets = [element for element in root.findall('object') if element.attrib['class'] not in IGNORED_TOP_LEVEL_WIDGETS]
 195     # eg. one file contains only a Menu, which we don't check
 196     if len(top_level_widgets) == 0:
 197         return
 198
 199     for top_level_widget in top_level_widgets:
 200         check_top_level_widget(top_level_widget)
 201
 202     # TODO - only do this if we have a GtkDialog?
 203     # check button box spacing
 204     button_box = top_level_widget.findall("./child/object[@id='dialog-vbox1']")
 205     if len(button_box) > 0:
 206         element = button_box[0]
 207         # TODO reenable when we are ready to fix
 208         #check_button_box_spacing(element)
 209
 210     message_box = top_level_widget.findall("./child/object[@id='messagedialog-vbox']")
 211     if len(message_box) > 0:
 212         element = message_box[0]
 213         # TODO reenable when we are ready to fix
 214         #check_message_box_spacing(element)
 215
 216     check_frames(root)
 217
 218     # TODO reenable when we are ready to fix
 219     #check_radio_buttons(root)
 220
 221     check_menu_buttons(root)
 222
 223     # TODO reenable when we are ready to fix
 224     #check_check_buttons(root)
 225
 226     check_title_labels(root)
 227
 228 if __name__ == "__main__":
 229     main()