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#!/usr/bin/env python
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, you can obtain one at http://mozilla.org/MPL/2.0/.
#
# Takes a LibreOffice .ui file and provides linting tips for maintaining
# a consistent look for dialogs
import sys
import xml.etree.ElementTree as ET
import re
DEFAULT_WARNING_STR = 'Lint assertion failed'
POSSIBLE_TOP_LEVEL_WIDGETS = ['GtkDialog', 'GtkMessageDialog', 'GtkBox', 'GtkFrame', 'GtkGrid']
IGNORED_TOP_LEVEL_WIDGETS = ['GtkAdjustment', 'GtkImage', 'GtkListStore', 'GtkSizeGroup', 'GtkMenu', 'GtkTextBuffer']
BORDER_WIDTH = '6'
BUTTON_BOX_SPACING = '12'
ALIGNMENT_TOP_PADDING = '6'
#https://developer.gnome.org/hig-book/3.0/windows-alert.html.en#alert-spacing
MESSAGE_BOX_SPACING = '24'
MESSAGE_BORDER_WIDTH = '12'
IGNORED_WORDS = ['the', 'of', 'to', 'for', 'a', 'and', 'as', 'from', 'on', 'into', 'by', 'at', 'or', 'do', 'in', 'when']
def lint_assert(predicate, warning=DEFAULT_WARNING_STR):
if not predicate:
print(" * " + warning)
def check_top_level_widget(element):
# check widget type
widget_type = element.attrib['class']
lint_assert(widget_type in POSSIBLE_TOP_LEVEL_WIDGETS,
"Top level widget should be 'GtkDialog', 'GtkFrame', 'GtkBox', or 'GtkGrid'")
# check border_width property
border_width_properties = element.findall("property[@name='border_width']")
if len(border_width_properties) < 1:
lint_assert(False, "No border_width set on top level widget. Should probably be " + BORDER_WIDTH)
if len(border_width_properties) == 1:
border_width = border_width_properties[0]
if widget_type == "GtkMessageDialog":
lint_assert(border_width.text == MESSAGE_BORDER_WIDTH,
"Top level 'border_width' property should be " + MESSAGE_BORDER_WIDTH)
else:
lint_assert(border_width.text == BORDER_WIDTH,
"Top level 'border_width' property should be " + BORDER_WIDTH)
def check_button_box_spacing(element):
spacing = element.findall("property[@name='spacing']")[0]
lint_assert(spacing.text == BUTTON_BOX_SPACING,
"Button box 'spacing' should be " + BUTTON_BOX_SPACING)
def check_message_box_spacing(element):
spacing = element.findall("property[@name='spacing']")[0]
lint_assert(spacing.text == MESSAGE_BOX_SPACING,
"Button box 'spacing' should be " + MESSAGE_BOX_SPACING)
def check_radio_buttons(root):
radios = [element for element in root.findall('.//object') if element.attrib['class'] == 'GtkRadioButton']
for radio in radios:
radio_underlines = radio.findall("./property[@name='use_underline']")
assert len(radio_underlines) <= 1
if len(radio_underlines) < 1:
lint_assert(False, "No use_underline in GtkRadioButton with id = '" + radio.attrib['id'] + "'")
def check_check_buttons(root):
radios = [element for element in root.findall('.//object') if element.attrib['class'] == 'GtkCheckButton']
for radio in radios:
radio_underlines = radio.findall("./property[@name='use_underline']")
assert len(radio_underlines) <= 1
if len(radio_underlines) < 1:
lint_assert(False, "No use_underline in GtkCheckButton with id = '" + radio.attrib['id'] + "'")
def check_frames(root):
frames = [element for element in root.findall('.//object') if element.attrib['class'] == 'GtkFrame']
for frame in frames:
frame_alignments = frame.findall("./child/object[@class='GtkAlignment']")
assert len(frame_alignments) <= 1
if len(frame_alignments) < 1:
lint_assert(False, "No GtkAlignment in GtkFrame with id = '" + frame.attrib['id'] + "'")
if len(frame_alignments) == 1:
alignment = frame_alignments[0]
check_alignment_top_padding(alignment)
def check_alignment_top_padding(alignment):
top_padding_properties = alignment.findall("./property[@name='top_padding']")
assert len(top_padding_properties) <= 1
if len(top_padding_properties) < 1:
lint_assert(False, "No GtkAlignment 'top_padding' set. Should probably be " + ALIGNMENT_TOP_PADDING)
if len(top_padding_properties) == 1:
top_padding = top_padding_properties[0]
lint_assert(top_padding.text == ALIGNMENT_TOP_PADDING,
"GtkAlignment 'top_padding' should be " + ALIGNMENT_TOP_PADDING)
def check_title_labels(root):
labels = root.findall(".//child[@type='label']")
titles = [label.find(".//property[@name='label']") for label in labels]
for title in titles:
if title is None:
continue
words = re.split(r'[^a-zA-Z0-9:_-]', title.text)
first = True
for word in words:
if word[0].islower() and (word not in IGNORED_WORDS or first):
lint_assert(False, "The word '" + word + "' should be capitalized")
first = False
def main():
print(" == " + sys.argv[1] + " ==")
tree = ET.parse(sys.argv[1])
root = tree.getroot()
lint_assert('domain' in root.attrib, "interface needs to specific translation domain")
top_level_widgets = [element for element in root.findall('object') if element.attrib['class'] not in IGNORED_TOP_LEVEL_WIDGETS]
assert len(top_level_widgets) == 1
top_level_widget = top_level_widgets[0]
check_top_level_widget(top_level_widget)
# TODO - only do this if we have a GtkDialog?
# check button box spacing
button_box = top_level_widget.findall("./child/object[@id='dialog-vbox1']")
if len(button_box) > 0:
element = button_box[0]
check_button_box_spacing(element)
message_box = top_level_widget.findall("./child/object[@id='messagedialog-vbox']")
if len(message_box) > 0:
element = message_box[0]
check_message_box_spacing(element)
check_frames(root)
check_radio_buttons(root)
check_check_buttons(root)
check_title_labels(root)
if __name__ == "__main__":
main()
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