forked from aparoksha/adwaita-swift
107 lines
3.3 KiB
Swift
107 lines
3.3 KiB
Swift
//
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// AboutDialog.swift
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// Adwaita
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//
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// Created by david-swift on 21.03.24.
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//
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import CAdw
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import Foundation
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/// The about dialog widget.
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struct AboutDialog: AdwaitaWidget {
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/// Whether the dialog is visible.
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@Binding var visible: Bool
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/// The wrapped view.
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var child: AnyView
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/// The dialog configuration options.
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var config: AdwaitaAboutDialogConfig
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/// The ID for the dialog's storage.
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let dialogID = "dialog"
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/// Initialize the about dialog wrapper.
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/// - Parameters:
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/// - visible: The visibility.
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/// - child: The child view.
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/// - configure: A closure that mutates the dialog configuration.
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init(
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visible: Binding<Bool>,
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child: AnyView,
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configure: (inout AdwaitaAboutDialogConfig) -> Void
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) {
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self._visible = visible
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self.child = child
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var cfg = AdwaitaAboutDialogConfig()
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configure(&cfg)
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self.config = cfg
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}
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/// The view storage.
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/// - Parameters:
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/// - modifiers: Modify views before being updated.
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/// - type: The view render data type.
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/// - Returns: The view storage.
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func container<Data>(data: WidgetData, type: Data.Type) -> ViewStorage where Data: ViewRenderData {
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let storage = child.storage(data: data, type: type)
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update(storage, data: data, updateProperties: true, type: type)
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return storage
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}
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/// Update the stored content.
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/// - Parameters:
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/// - storage: The storage to update.
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/// - modifiers: Modify views before being updated
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/// - updateProperties: Whether to update the view's properties.
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/// - type: The view render data type.
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func update<Data>(
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_ storage: ViewStorage,
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data: WidgetData,
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updateProperties: Bool,
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type: Data.Type
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) where Data: ViewRenderData {
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child.updateStorage(storage, data: data, updateProperties: updateProperties, type: type)
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guard updateProperties else {
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return
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}
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if visible {
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if storage.content[dialogID]?.first == nil {
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createDialog(storage: storage)
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adw_dialog_present(
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storage.content[dialogID]?.first?.opaquePointer?.cast(),
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storage.opaquePointer?.cast()
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)
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}
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guard let dialog = storage.content[dialogID]?.first?.opaquePointer else {
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return
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}
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config.apply(to: dialog)
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adw_dialog_set_content_height(dialog.cast(), -1)
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} else {
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if storage.content[dialogID]?.first != nil {
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let dialog = storage.content[dialogID]?.first?.opaquePointer
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adw_dialog_close(dialog?.cast())
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storage.content[dialogID] = []
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}
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}
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}
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/// Create a new instance of the dialog.
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/// - Parameter storage: The wrapped view's storage.
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func createDialog(storage: ViewStorage) {
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let pointer = adw_about_dialog_new()
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let dialog = ViewStorage(pointer?.opaque())
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storage.content[dialogID] = [dialog]
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dialog.connectSignal(name: "closed") {
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storage.content[dialogID] = []
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if visible {
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visible = false
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}
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}
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}
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}
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