element-ios/RiotSwiftUI/Modules/Common/Util/BorderedInputFieldStyle.swift

121 lines
4.5 KiB
Swift

//
// Copyright 2021-2024 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only
// Please see LICENSE in the repository root for full details.
//
import Foundation
import Introspect
import SwiftUI
/// A bordered style of text input
///
/// As defined in:
/// https://www.figma.com/file/X4XTH9iS2KGJ2wFKDqkyed/Compound?node-id=2039%3A26415
struct BorderedInputFieldStyle: TextFieldStyle {
@Environment(\.theme) private var theme: ThemeSwiftUI
@Environment(\.isEnabled) private var isEnabled: Bool
var isEditing = false
var isError = false
private var borderColor: Color {
if isError {
return theme.colors.alert
} else if isEditing {
return theme.colors.accent
}
return theme.colors.quinaryContent
}
private var accentColor: Color {
if isError {
return theme.colors.alert
}
return theme.colors.accent
}
private var textColor: Color {
if theme.identifier == ThemeIdentifier.dark {
return (isEnabled ? theme.colors.primaryContent : theme.colors.tertiaryContent)
} else {
return (isEnabled ? theme.colors.primaryContent : theme.colors.quarterlyContent)
}
}
private var backgroundColor: Color {
if !isEnabled, theme.identifier == ThemeIdentifier.dark {
return theme.colors.quinaryContent
}
return theme.colors.background
}
private var placeholderColor: Color {
theme.colors.tertiaryContent
}
private var borderWidth: CGFloat {
isEditing || isError ? 2.0 : 1.5
}
func _body(configuration: TextField<_Label>) -> some View {
let rect = RoundedRectangle(cornerRadius: 8.0)
return configuration
.font(theme.fonts.callout)
.foregroundColor(textColor)
.accentColor(accentColor)
.frame(height: 48.0)
.padding(.horizontal, 8.0)
.background(backgroundColor)
.clipShape(rect)
.overlay(rect.stroke(borderColor, lineWidth: borderWidth))
.introspectTextField { textField in
textField.returnKeyType = .done
textField.clearButtonMode = .whileEditing
textField.attributedPlaceholder = NSAttributedString(string: textField.placeholder ?? "",
attributes: [NSAttributedString.Key.foregroundColor: UIColor(placeholderColor)])
}
}
}
struct BorderedInputFieldStyle_Previews: PreviewProvider {
static var previews: some View {
Group {
VStack {
TextField("Placeholder", text: .constant(""))
.textFieldStyle(BorderedInputFieldStyle())
TextField("Placeholder", text: .constant(""))
.textFieldStyle(BorderedInputFieldStyle(isEditing: true))
TextField("Placeholder", text: .constant("Web"))
.textFieldStyle(BorderedInputFieldStyle())
TextField("Placeholder", text: .constant("Web"))
.textFieldStyle(BorderedInputFieldStyle(isEditing: true))
TextField("Placeholder", text: .constant("Web"))
.textFieldStyle(BorderedInputFieldStyle())
.disabled(true)
TextField("Placeholder", text: .constant("Web"))
.textFieldStyle(BorderedInputFieldStyle(isEditing: true, isError: true))
}
.padding()
VStack {
TextField("Placeholder", text: .constant(""))
.textFieldStyle(BorderedInputFieldStyle())
TextField("Placeholder", text: .constant(""))
.textFieldStyle(BorderedInputFieldStyle(isEditing: true))
TextField("Placeholder", text: .constant("Web"))
.textFieldStyle(BorderedInputFieldStyle())
TextField("Placeholder", text: .constant("Web"))
.textFieldStyle(BorderedInputFieldStyle(isEditing: true))
TextField("Placeholder", text: .constant("Web"))
.textFieldStyle(BorderedInputFieldStyle())
.disabled(true)
TextField("Placeholder", text: .constant("Web"))
.textFieldStyle(BorderedInputFieldStyle(isEditing: true, isError: true))
}
.padding()
.theme(ThemeIdentifier.dark)
}
}
}