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/*
* This file is part of GNU Taler, ©2022-23 Taler Systems S.A.
* See LICENSE.md
*/
import SwiftUI
import Foundation
extension ShapeStyle where Self == Color {
static var random: Color {
Color(
red: .random(in: 0...1),
green: .random(in: 0...1),
blue: .random(in: 0...1)
)
}
}
struct HamburgerButton : View {
let action: () -> Void
var body: some View {
Button(action: action) {
Image(systemName: "line.3.horizontal")
// Image(systemName: "sidebar.squares.leading")
}
.accessibilityFont(.title)
.accessibilityLabel("Main Menu")
}
}
struct QRButton : View {
let action: () -> Void
var body: some View {
Button(action: action) {
Image(systemName: "qrcode.viewfinder")
}
.accessibilityFont(.title)
.accessibilityLabel("Scan QR codes")
}
}
struct PlusButton : View {
let action: () -> Void
var body: some View {
Button(action: action) {
Image(systemName: "plus")
}
.accessibilityFont(.title)
.accessibilityLabel("Add...")
}
}
struct ArrowUpButton : View {
let action: () -> Void
var body: some View {
Button(action: action) {
Image(systemName: "arrow.up.to.line")
}
.accessibilityFont(.title2)
.accessibilityLabel("Scroll up")
}
}
struct ArrowDownButton : View {
let action: () -> Void
var body: some View {
Button(action: action) {
Image(systemName: "arrow.down.to.line")
}
.accessibilityFont(.title2)
.accessibilityLabel("Scroll down")
}
}
struct ReloadButton : View {
let disabled: Bool
let action: () -> Void
var body: some View {
Button(action: action) {
Image(systemName: "arrow.clockwise")
}
.accessibilityFont(.title)
.accessibilityLabel("Reload")
.disabled(disabled)
}
}
struct TalerButtonStyle: ButtonStyle {
@Environment(\.isEnabled) private var isEnabled: Bool
func disabled() -> Bool { !isEnabled }
enum TalerButtonStyleType {
case plain
case balance
case bordered
case prominent
}
var type: TalerButtonStyleType = .plain
var dimmed: Bool = false
var narrow: Bool = false
var aligned: TextAlignment = .center
public func makeBody(configuration: ButtonStyle.Configuration) -> some View {
MyBigButton(//type: type,
foreColor: foreColor(type: type, pressed: configuration.isPressed),
backColor: backColor(type: type, pressed: configuration.isPressed),
dimmed: dimmed,
configuration: configuration,
disabled: disabled(),
narrow: narrow,
aligned: aligned)
}
func foreColor(type: TalerButtonStyleType, pressed: Bool) -> Color {
// return if type == .plain {
// WalletColors().fieldForeground
// } else {
// WalletColors().buttonForeColor(pressed: pressed,
// disabled: disabled(),
// prominent: type == .prominent)
// }
return type == .plain ? WalletColors().fieldForeground : // primary text color
WalletColors().buttonForeColor(pressed: pressed,
disabled: disabled(),
prominent: type == .prominent,
balance: type == .balance)
}
func backColor(type: TalerButtonStyleType, pressed: Bool) -> Color {
// return if type == .plain {
// Color.clear
// } else {
// WalletColors().buttonBackColor(pressed: pressed,
// disabled: disabled(),
// prominent: type == .prominent)
// }
return type == .plain && !pressed ? Color.clear :
WalletColors().buttonBackColor(pressed: pressed,
disabled: disabled(),
prominent: type == .prominent,
balance: type == .balance)
}
struct BackgroundView: View {
let color: Color
let dimmed: Bool
var body: some View {
RoundedRectangle(
cornerRadius: 15,
style: .continuous
)
.fill(color)
.opacity(dimmed ? 0.6 : 1.0)
}
}
struct MyBigButton: View {
// var type: TalerButtonStyleType
let foreColor: Color
let backColor: Color
let dimmed: Bool
let configuration: ButtonStyle.Configuration
let disabled: Bool
let narrow: Bool
let aligned: TextAlignment
var body: some View {
let aligned2: Alignment = (aligned == .center) ? Alignment.center
: (aligned == .leading) ? Alignment.leading
: Alignment.trailing
configuration.label
.multilineTextAlignment(aligned)
.accessibilityFont(.title3)
// narrow ? .title3 : .title2
.frame(minWidth: 0, maxWidth: narrow ? nil : .infinity, alignment: aligned2)
.padding(.vertical, 10)
.padding(.horizontal, 6)
.foregroundColor(foreColor)
.background(BackgroundView(color: backColor, dimmed: dimmed))
.contentShape(Rectangle()) // make sure the button can be pressed even if backgroundColor == clear
.scaleEffect(configuration.isPressed ? 0.95 : 1)
.animation(.spring(response: 0.1), value: configuration.isPressed)
.disabled(disabled)
}
}
}
#if DEBUG
fileprivate struct ContentView_Previews: PreviewProvider {
static var previews: some View {
let testButtonTitle = String("Placeholder")
Button(testButtonTitle) {}
.buttonStyle(TalerButtonStyle(type: .balance, aligned: .trailing))
}
}
#endif
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