112 lines
3.4 KiB
Swift
112 lines
3.4 KiB
Swift
import Elementary
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/// A decorative inline SVG stroke icon, drawn in the current text colour.
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struct Icon: HTML {
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// MARK: Properties
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/// The glyph the icon draws.
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let glyph: Glyph
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/// The icon's rendered width and height, in pixels.
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let size: Int
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/// The stroke width, or `nil` for the glyph's own.
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let weight: String?
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// MARK: Initializers
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/// Creates an icon.
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/// - Parameters:
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/// - glyph: the glyph the icon draws.
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/// - size: the icon's rendered width and height, in pixels; 20 by default.
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/// - weight: the stroke width, or `nil` (the default) for the glyph's own.
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init(
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_ glyph: Glyph,
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size: Int = 20,
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weight: String? = nil
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) {
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self.glyph = glyph
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self.size = size
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self.weight = weight
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}
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// MARK: Computed
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/// Rendered raw: the markup is static, never user input.
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var body: some HTML {
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HTMLRaw(
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"""
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<svg class="icon" width="\(size)" height="\(size)" viewBox="0 0 24 24" fill="none" stroke="currentColor" \
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stroke-width="\(weight ?? glyph.strokeWidth)" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">\(glyph.shapes)</svg>
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"""
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)
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}
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}
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// MARK: - Enumerations
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extension Icon {
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/// A glyph an ``Icon`` can draw.
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enum Glyph {
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/// A bell.
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case bell
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/// A bookmark.
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case bookmark
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/// A check mark.
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case check
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/// A cross.
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case close
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/// A page of text.
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case document
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/// Filter lines.
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case filter
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/// A key.
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case key
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/// A padlock.
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case lock
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/// A speech bubble.
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case message
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/// A magnifying glass.
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case search
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/// A shopfront.
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case shop
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/// Sort arrows.
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case sort
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}
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}
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extension Icon.Glyph {
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// MARK: Computed
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/// The shapes the glyph is drawn with.
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var shapes: String {
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switch self {
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case .bell: #"<path d="M6 16V11a6 6 0 0 1 12 0v5l2 2H4z"></path><path d="M10 21h4"></path>"#
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case .bookmark: #"<path d="M6 3h12v18l-6-4-6 4z"></path>"#
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case .check: #"<path d="m5 12 5 5 9-10"></path>"#
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case .close: #"<path d="M6 6l12 12M18 6 6 18"></path>"#
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case .document: #"<rect x="5" y="3" width="14" height="18" rx="1"></rect><path d="M9 8h6M9 12h6M9 16h3"></path>"#
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case .filter: #"<path d="M4 6h16M7 12h10M10 18h4"></path>"#
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case .key: #"<circle cx="7.5" cy="15.5" r="4.5"></circle><path d="M10.7 12.3 21 2"></path><path d="m18 5 3 3"></path><path d="m15 8 3 3"></path>"#
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case .lock: #"<rect x="5" y="11" width="14" height="10" rx="1"></rect><path d="M8 11V7a4 4 0 0 1 8 0v4"></path>"#
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case .message: #"<path d="M4 5h16v11H8l-4 4z"></path>"#
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case .search: #"<circle cx="11" cy="11" r="7"></circle><path d="m20 20-3.5-3.5"></path>"#
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case .shop: #"<path d="M3 9.5 12 4l9 5.5"></path><path d="M5 10v9h14v-9"></path><path d="M10 19v-5h4v5"></path>"#
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case .sort: #"<path d="M7 4v16M7 20l-3-3M7 20l3-3M17 20V4M17 4l-3 3M17 4l3 3"></path>"#
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}
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}
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/// The glyph's stroke width; heavier for glyphs drawn small.
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var strokeWidth: String {
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switch self {
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case .check: "3.5"
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case .close, .filter, .key, .search, .sort: "2.2"
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default: "2"
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}
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}
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}
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