aparoksha/adwaita-swift
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Add option to pass custom array to view switcher
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This commit is contained in:
david-swift 2024-10-19 20:28:08 +02:00
parent 4559a81337
commit c893a8f0c6
2 changed files with 29 additions and 14 deletions
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39
Sources/Core/View/ViewSwitcher.swift
View File

@ -6,21 +6,25 @@
//
import CAdw
import LevenshteinTransformations
/// A picker used for indicating multiple views.
///
/// It normally controls a `ViewStack` (e.g. via `switch` statements).
/// The view switcher widget.
public struct ViewSwitcher<Element>: AdwaitaWidget where Element: ViewSwitcherOption {
/// The selected element.
@Binding var selection: Element
@Binding var selectedElement: Element
/// The elements.
var elements: [Element]
/// Whether the wide style is used, that means the icons and titles are on the same line.
var wide = false
/// Initialize a view switcher.
/// - Parameter selection: The selected element.
public init(selection: Binding<Element>) {
self._selection = selection
/// - Parameters:
/// - elements: The elements.
/// - selectedElement: The selected element.
public init(_ elements: [Element], selectedElement: Binding<Element>) {
self._selectedElement = selectedElement
self.elements = elements
}
/// The view storage.
@ -35,7 +39,7 @@ public struct ViewSwitcher<Element>: AdwaitaWidget where Element: ViewSwitcherOp
let switcher = ViewStorage(adw_view_switcher_new()?.opaque())
let stack = ViewStorage(adw_view_stack_new()?.opaque())
adw_view_switcher_set_stack(switcher.opaquePointer, stack.opaquePointer)
for option in Element.allCases {
for option in elements {
adw_view_stack_add_titled_with_icon(
stack.opaquePointer,
gtk_label_new(""),
@ -71,7 +75,7 @@ public struct ViewSwitcher<Element>: AdwaitaWidget where Element: ViewSwitcherOp
stack?.notify(name: "visible-child") {
if let title = adw_view_stack_get_visible_child_name(stack?.opaquePointer),
let option = Element(title: .init(cString: title)) {
selection = option
selectedElement = option
}
}
if (switcher.previousState as? Self)?.wide != wide {
@ -80,9 +84,9 @@ public struct ViewSwitcher<Element>: AdwaitaWidget where Element: ViewSwitcherOp
wide ? ADW_VIEW_SWITCHER_POLICY_WIDE : ADW_VIEW_SWITCHER_POLICY_NARROW
)
}
if (switcher.previousState as? Self)?.selection.title != selection.title {
if (switcher.previousState as? Self)?.selectedElement.title != selectedElement.title {
let stack = adw_view_switcher_get_stack(switcher.opaquePointer)
adw_view_stack_set_visible_child_name(stack, selection.title)
adw_view_stack_set_visible_child_name(stack, selectedElement.title)
}
switcher.previousState = self
}
@ -98,8 +102,19 @@ public struct ViewSwitcher<Element>: AdwaitaWidget where Element: ViewSwitcherOp
}
extension ViewSwitcher where Element: CaseIterable {
/// Initialize a view switcher.
/// - Parameter selectedElement: The selected element.
public init(selectedElement: Binding<Element>) {
self._selectedElement = selectedElement
self.elements = .init(Element.allCases)
}
}
/// The protocol an element type for view switcher has to conform to.
public protocol ViewSwitcherOption: CaseIterable {
public protocol ViewSwitcherOption {
/// The title displayed in the switcher and used for identification.
var title: String { get }

4
Sources/Demo/ViewSwitcherDemo.swift
View File

@ -57,14 +57,14 @@ struct ViewSwitcherDemo: View {
var toolbar: AnyView {
HeaderBar(titleButtons: !bottom) { } end: { }
.headerBarTitle {
ViewSwitcher(selection: $selection)
ViewSwitcher(selectedElement: $selection)
.wideDesign(!bottom)
}
}
}
enum ViewSwitcherView: String, ViewSwitcherOption {
enum ViewSwitcherView: String, ViewSwitcherOption, CaseIterable {
case albums
case artists