Tokamak/Sources/TokamakStaticHTML/Views/HTML.swift

98 lines
2.2 KiB
Swift

// Copyright 2020 Tokamak contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Created by Max Desiatov on 11/04/2020.
//
import TokamakCore
public protocol AnyHTML {
var innerHTML: String? { get }
var tag: String { get }
var attributes: [String: String] { get }
}
extension AnyHTML {
public var outerHTML: String {
"""
<\(tag)\(attributes.isEmpty ? "" : " ")\
\(attributes.map { #"\#($0)="\#($1)""# }.joined(separator: " "))>\
\(innerHTML ?? "")\
</\(tag)>
"""
}
}
public struct HTML<Content>: View, AnyHTML {
public let tag: String
public let attributes: [String: String]
let content: Content
public let innerHTML: String?
public var body: Never {
neverBody("HTML")
}
}
extension HTML where Content: StringProtocol {
public init(
_ tag: String,
_ attributes: [String: String] = [:],
content: Content
) {
self.tag = tag
self.attributes = attributes
self.content = content
innerHTML = String(content)
}
}
extension HTML: ParentView where Content: View {
public init(
_ tag: String,
_ attributes: [String: String] = [:],
@ViewBuilder content: () -> Content
) {
self.tag = tag
self.attributes = attributes
self.content = content()
innerHTML = nil
}
public var children: [AnyView] {
[AnyView(content)]
}
}
extension HTML where Content == EmptyView {
public init(
_ tag: String,
_ attributes: [String: String] = [:]
) {
self = HTML(tag, attributes) { EmptyView() }
}
}
public protocol StylesConvertible {
var styles: [String: String] { get }
}
extension Dictionary {
public var inlineStyles: String {
map { "\($0.0): \($0.1);" }
.joined(separator: " ")
}
}