mirror of https://gitlab.com/bashrc2/epicyon
400 lines
14 KiB
Python
400 lines
14 KiB
Python
__filename__ = "webapp_theme_designer.py"
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__author__ = "Bob Mottram"
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__license__ = "AGPL3+"
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__version__ = "1.3.0"
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__maintainer__ = "Bob Mottram"
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__email__ = "bob@libreserver.org"
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__status__ = "Production"
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__module_group__ = "Web Interface"
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import os
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from utils import load_json
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from utils import get_config_param
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from webapp_utils import html_header_with_external_style
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from webapp_utils import html_footer
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from webapp_utils import get_banner_file
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color_to_hex = {
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"aliceblue": "#f0f8ff",
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"antiquewhite": "#faebd7",
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"aqua": "#00ffff",
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"aquamarine": "#7fffd4",
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"azure": "#f0ffff",
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"beige": "#f5f5dc",
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"bisque": "#ffe4c4",
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"black": "#000000",
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"blanchedalmond": "#ffebcd",
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"blue": "#0000ff",
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"blueviolet": "#8a2be2",
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"brown": "#a52a2a",
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"burlywood": "#deb887",
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"cadetblue": "#5f9ea0",
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"chartreuse": "#7fff00",
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"chocolate": "#d2691e",
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"coral": "#ff7f50",
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"cornflowerblue": "#6495ed",
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"cornsilk": "#fff8dc",
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"crimson": "#dc143c",
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"cyan": "#00ffff",
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"darkblue": "#00008b",
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"darkcyan": "#008b8b",
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"darkgoldenrod": "#b8860b",
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"darkgray": "#a9a9a9",
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"darkgrey": "#a9a9a9",
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"darkgreen": "#006400",
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"darkkhaki": "#bdb76b",
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"darkmagenta": "#8b008b",
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"darkolivegreen": "#556b2f",
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"darkorange": "#ff8c00",
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"darkorchid": "#9932cc",
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"darkred": "#8b0000",
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"darksalmon": "#e9967a",
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"darkseagreen": "#8fbc8f",
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"darkslateblue": "#483d8b",
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"darkslategray": "#2f4f4f",
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"darkslategrey": "#2f4f4f",
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"darkturquoise": "#00ced1",
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"darkviolet": "#9400d3",
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"deeppink": "#ff1493",
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"deepskyblue": "#00bfff",
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"dimgray": "#696969",
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"dimgrey": "#696969",
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"dodgerblue": "#1e90ff",
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"firebrick": "#b22222",
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"floralwhite": "#fffaf0",
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"forestgreen": "#228b22",
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"fuchsia": "#ff00ff",
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"gainsboro": "#dcdcdc",
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"ghostwhite": "#f8f8ff",
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"gold": "#ffd700",
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"goldenrod": "#daa520",
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"gray": "#808080",
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"grey": "#808080",
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"green": "#008000",
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"greenyellow": "#adff2f",
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"honeydew": "#f0fff0",
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"hotpink": "#ff69b4",
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"indianred": "#cd5c5c",
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"indigo": "#4b0082",
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"ivory": "#fffff0",
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"khaki": "#f0e68c",
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"lavender": "#e6e6fa",
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"lavenderblush": "#fff0f5",
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"lawngreen": "#7cfc00",
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"lemonchiffon": "#fffacd",
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"lightblue": "#add8e6",
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"lightcoral": "#f08080",
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"lightcyan": "#e0ffff",
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"lightgoldenrodyellow": "#fafad2",
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"lightgray": "#d3d3d3",
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"lightgrey": "#d3d3d3",
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"lightgreen": "#90ee90",
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"lightpink": "#ffb6c1",
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"lightsalmon": "#ffa07a",
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"lightseagreen": "#20b2aa",
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"lightskyblue": "#87cefa",
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"lightslategray": "#778899",
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"lightslategrey": "#778899",
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"lightsteelblue": "#b0c4de",
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"lightyellow": "#ffffe0",
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"lime": "#00ff00",
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"limegreen": "#32cd32",
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"linen": "#faf0e6",
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"magenta": "#ff00ff",
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"maroon": "#800000",
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"mediumaquamarine": "#66cdaa",
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"mediumblue": "#0000cd",
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"mediumorchid": "#ba55d3",
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"mediumpurple": "#9370db",
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"mediumseagreen": "#3cb371",
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"mediumslateblue": "#7b68ee",
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"mediumspringgreen": "#00fa9a",
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"mediumturquoise": "#48d1cc",
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"mediumvioletred": "#c71585",
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"midnightblue": "#191970",
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"mintcream": "#f5fffa",
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"mistyrose": "#ffe4e1",
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"moccasin": "#ffe4b5",
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"navajowhite": "#ffdead",
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"navy": "#000080",
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"oldlace": "#fdf5e6",
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"olive": "#808000",
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"olivedrab": "#6b8e23",
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"orange": "#ffa500",
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"orangered": "#ff4500",
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"orchid": "#da70d6",
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"palegoldenrod": "#eee8aa",
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"palegreen": "#98fb98",
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"paleturquoise": "#afeeee",
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"palevioletred": "#db7093",
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"papayawhip": "#ffefd5",
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"peachpuff": "#ffdab9",
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"peru": "#cd853f",
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"pink": "#ffc0cb",
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"plum": "#dda0dd",
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"powderblue": "#b0e0e6",
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"purple": "#800080",
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"red": "#ff0000",
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"rosybrown": "#bc8f8f",
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"royalblue": "#4169e1",
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"saddlebrown": "#8b4513",
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"salmon": "#fa8072",
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"sandybrown": "#f4a460",
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"seagreen": "#2e8b57",
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"seashell": "#fff5ee",
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"sienna": "#a0522d",
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"silver": "#c0c0c0",
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"skyblue": "#87ceeb",
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"slateblue": "#6a5acd",
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"slategray": "#708090",
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"slategrey": "#708090",
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"snow": "#fffafa",
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"springgreen": "#00ff7f",
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"steelblue": "#4682b4",
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"tan": "#d2b48c",
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"teal": "#008080",
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"thistle": "#d8bfd8",
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"tomato": "#ff6347",
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"turquoise": "#40e0d0",
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"violet": "#ee82ee",
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"wheat": "#f5deb3",
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"white": "#ffffff",
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"whitesmoke": "#f5f5f5",
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"yellow": "#ffff00",
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"yellowgreen": "#9acd32",
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}
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def html_theme_designer(css_cache: {}, base_dir: str,
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nickname: str, domain: str,
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translate: {}, default_timeline: str,
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theme_name: str, access_keys: {}) -> str:
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"""Edit theme settings
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"""
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theme_filename = base_dir + '/theme/' + theme_name + '/theme.json'
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theme_json = {}
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if os.path.isfile(theme_filename):
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theme_json = load_json(theme_filename)
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# set custom theme parameters
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custom_variables_file = base_dir + '/accounts/theme.json'
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if os.path.isfile(custom_variables_file):
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custom_theme_params = load_json(custom_variables_file, 0)
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if custom_theme_params:
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for variable_name, value in custom_theme_params.items():
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theme_json[variable_name] = value
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theme_form = ''
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css_filename = base_dir + '/epicyon-profile.css'
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if os.path.isfile(base_dir + '/epicyon.css'):
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css_filename = base_dir + '/epicyon.css'
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instance_title = \
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get_config_param(base_dir, 'instanceTitle')
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theme_form = \
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html_header_with_external_style(css_filename, instance_title, None)
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banner_file, _ = \
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get_banner_file(base_dir, nickname, domain, theme_name)
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theme_form += \
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'<a href="/users/' + nickname + '/' + default_timeline + '" ' + \
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'accesskey="' + access_keys['menuTimeline'] + '">' + \
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'<img loading="lazy" decoding="async" class="timeline-banner" ' + \
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'title="' + translate['Switch to timeline view'] + '" ' + \
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'alt="' + translate['Switch to timeline view'] + '" ' + \
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'src="/users/' + nickname + '/' + banner_file + '" /></a>\n'
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theme_form += '<div class="container">\n'
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theme_form += \
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' <h1>' + translate['Theme Designer'] + '</h1>\n'
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theme_form += ' <form method="POST" action="' + \
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'/users/' + nickname + '/changeThemeSettings">\n'
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reset_key = access_keys['menuLogout']
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submit_key = access_keys['submitButton']
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theme_form += \
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' <center>\n' + \
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' <button type="submit" class="button" ' + \
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'name="submitThemeDesignerReset" ' + \
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'accesskey="' + reset_key + '">' + \
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translate['Reset'] + '</button>\n' + \
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' <button type="submit" class="button" ' + \
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'name="submitThemeDesigner" accesskey="' + submit_key + '">' + \
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translate['Save'] + '</button>\n </center>\n'
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contrast_warning = ''
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if theme_json.get('main-bg-color'):
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background = theme_json['main-bg-color']
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if theme_json.get('main-fg-color'):
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foreground = theme_json['main-fg-color']
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contrast = color_contrast(background, foreground)
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if contrast:
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if contrast < 4.5:
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contrast_warning = '⚠️ '
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theme_form += \
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' <center><label class="labels">' + \
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contrast_warning + '<b>' + \
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translate['Color contrast is too low'] + \
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'</b></label></center>\n'
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table_str = ' <table class="accesskeys">\n'
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table_str += ' <colgroup>\n'
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table_str += ' <col span="1" class="accesskeys-left">\n'
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table_str += ' <col span="1" class="accesskeys-center">\n'
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table_str += ' </colgroup>\n'
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table_str += ' <tbody>\n'
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font_str = ' <div class="container">\n' + table_str
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color_str = ' <div class="container">\n' + table_str
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dimension_str = ' <div class="container">\n' + table_str
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switch_str = ' <div class="container">\n' + table_str
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for variable_name, value in theme_json.items():
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if 'font-size' in variable_name:
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variable_name_str = variable_name.replace('-', ' ')
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variable_name_str = variable_name_str.title()
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variable_name_label = variable_name_str
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if contrast_warning:
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if variable_name in ('main-bg-color', 'main-fg-color'):
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variable_name_label = contrast_warning + variable_name_str
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font_str += \
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' <tr><td><label class="labels">' + \
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variable_name_label + '</label></td>'
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font_str += \
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'<td><input type="text" name="themeSetting_' + \
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variable_name + '" value="' + str(value) + \
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'" title="' + variable_name_str + '"></td></tr>\n'
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elif ('-color' in variable_name or
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'-background' in variable_name or
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variable_name.endswith('-text') or
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value.startswith('#') or
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color_to_hex.get(value)):
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# only use colors defined as hex
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if not value.startswith('#'):
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if color_to_hex.get(value):
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value = color_to_hex[value]
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else:
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continue
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variable_name_str = variable_name.replace('-', ' ')
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if ' color' in variable_name_str:
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variable_name_str = variable_name_str.replace(' color', '')
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if ' bg' in variable_name_str:
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variable_name_str = \
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variable_name_str.replace(' bg', ' background')
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elif ' fg' in variable_name_str:
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variable_name_str = \
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variable_name_str.replace(' fg', ' foreground')
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if variable_name_str == 'cw':
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variable_name_str = 'content warning'
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variable_name_str = variable_name_str.title()
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color_str += \
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' <tr><td><label class="labels">' + \
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variable_name_str + '</label></td>'
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color_str += \
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'<td><input type="color" name="themeSetting_' + \
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variable_name + '" value="' + str(value) + \
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'" title="' + variable_name_str + '"></td></tr>\n'
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elif (('-width' in variable_name or
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'-height' in variable_name or
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'-spacing' in variable_name or
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'-margin' in variable_name or
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'-vertical' in variable_name) and
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(value.lower() != 'true' and value.lower() != 'false')):
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variable_name_str = variable_name.replace('-', ' ')
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variable_name_str = variable_name_str.title()
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dimension_str += \
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' <tr><td><label class="labels">' + \
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variable_name_str + '</label></td>'
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dimension_str += \
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'<td><input type="text" name="themeSetting_' + \
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variable_name + '" value="' + str(value) + \
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'" title="' + variable_name_str + '"></td></tr>\n'
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elif value.title() == 'True' or value.title() == 'False':
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variable_name_str = variable_name.replace('-', ' ')
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variable_name_str = variable_name_str.title()
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switch_str += \
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' <tr><td><label class="labels">' + \
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variable_name_str + '</label></td>'
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checked_str = ''
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if value.title() == 'True':
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checked_str = ' checked'
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switch_str += \
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'<td><input type="checkbox" class="profilecheckbox" ' + \
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'name="themeSetting_' + variable_name + '"' + \
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checked_str + '></td></tr>\n'
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color_str += ' </table>\n </div>\n'
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font_str += ' </table>\n </div>\n'
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dimension_str += ' </table>\n </div>\n'
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switch_str += ' </table>\n </div>\n'
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theme_formats = '.zip, .gz'
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export_import_str = ' <div class="container">\n'
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export_import_str += \
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' <label class="labels">' + \
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translate['Import Theme'] + '</label>\n'
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export_import_str += ' <input type="file" id="import_theme" '
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export_import_str += 'name="submitImportTheme" '
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export_import_str += 'accept="' + theme_formats + '">\n'
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export_import_str += \
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' <label class="labels">' + \
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translate['Export Theme'] + '</label><br>\n'
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export_import_str += \
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' <button type="submit" class="button" ' + \
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'name="submitExportTheme">➤</button><br>\n'
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export_import_str += ' </div>\n'
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theme_form += color_str + font_str + dimension_str
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theme_form += switch_str + export_import_str
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theme_form += ' </form>\n'
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theme_form += '</div>\n'
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theme_form += html_footer()
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return theme_form
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def _relative_luminance(color: str) -> float:
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""" Returns the relative luminance for the given color
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"""
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color = color.lstrip('#')
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rgb = list(int(color[i:i+2], 16) for i in (0, 2, 4))
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srgb = (
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rgb[0] / 255.0,
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rgb[1] / 255.0,
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rgb[2] / 255.0
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)
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if srgb[0] <= 0.03928:
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rgb[0] = srgb[0] / 12.92
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else:
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rgb[0] = pow(((srgb[0] + 0.055) / 1.055), 2.4)
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if srgb[1] <= 0.03928:
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rgb[1] = srgb[1] / 12.92
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else:
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rgb[1] = pow(((srgb[1] + 0.055) / 1.055), 2.4)
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if srgb[2] <= 0.03928:
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rgb[2] = srgb[2] / 12.92
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else:
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rgb[2] = pow(((srgb[2] + 0.055) / 1.055), 2.4)
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return \
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0.2126 * rgb[0] + 0.7152 * rgb[1] + 0.0722 * rgb[2]
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def color_contrast(background: str, foreground: str) -> float:
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"""returns the color contrast
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"""
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if not background.startswith('#'):
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if color_to_hex.get(background):
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background = color_to_hex[background]
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else:
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return None
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if not foreground.startswith('#'):
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if color_to_hex.get(foreground):
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foreground = color_to_hex[foreground]
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else:
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return None
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background_luminance = _relative_luminance(background)
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foreground_luminance = _relative_luminance(foreground)
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if background_luminance > foreground_luminance:
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return (0.05 + background_luminance) / (0.05 + foreground_luminance)
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return (0.05 + foreground_luminance) / (0.05 + background_luminance)
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