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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| // | ||
| // TablerGridC.swift | ||
| // | ||
| // Copyright 2022 FlowAllocator LLC | ||
| // | ||
| // 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. | ||
| // | ||
|
|
||
| import SwiftUI | ||
|
|
||
| /// Grid-based table, with support for bound values through Core Data | ||
| public struct TablerGridC<Element, Header, Row, RowBack>: View | ||
| where Element: Identifiable & NSFetchRequestResult & ObservableObject, | ||
| Header: View, | ||
| Row: View, | ||
| RowBack: View | ||
| { | ||
| public typealias Config = TablerGridConfig<Element> | ||
| public typealias Context = TablerContext<Element> | ||
| public typealias Hovered = Element.ID? | ||
| public typealias HeaderContent = (Binding<Context>) -> Header | ||
| public typealias ProjectedValue = ObservedObject<Element>.Wrapper | ||
| public typealias RowContent = (ProjectedValue) -> Row | ||
| public typealias RowBackground = (Element) -> RowBack | ||
| public typealias Fetched = FetchedResults<Element> | ||
|
|
||
| // MARK: Parameters | ||
|
|
||
| private let config: Config | ||
| private let headerContent: HeaderContent | ||
| private let rowContent: RowContent | ||
| private let rowBackground: RowBackground | ||
| private var results: Fetched | ||
|
|
||
| public init(_ config: Config = .init(), | ||
| @ViewBuilder header: @escaping HeaderContent, | ||
| @ViewBuilder row: @escaping RowContent, | ||
| @ViewBuilder rowBackground: @escaping RowBackground, | ||
| results: Fetched) | ||
| { | ||
| self.config = config | ||
| headerContent = header | ||
| rowContent = row | ||
| self.rowBackground = rowBackground | ||
| self.results = results | ||
| _context = State(initialValue: TablerContext(config)) | ||
| } | ||
|
|
||
| // MARK: Locals | ||
|
|
||
| @State private var hovered: Hovered = nil | ||
| @State private var context: Context | ||
|
|
||
| // MARK: Views | ||
|
|
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| public var body: some View { | ||
| BaseGrid(context: $context, | ||
| header: headerContent) { | ||
| ForEach(results) { rawElem in | ||
| ObservableHolder(element: rawElem) { obsElem in | ||
| rowContent(obsElem) | ||
| .modifier(GridItemMod(config, rawElem, $hovered)) | ||
| .background(rowBackground(rawElem)) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public extension TablerGridC { | ||
| // omitting Header | ||
| init(_ config: Config, | ||
| @ViewBuilder row: @escaping RowContent, | ||
| @ViewBuilder rowBackground: @escaping RowBackground, | ||
| results: Fetched) | ||
| where Header == EmptyView | ||
| { | ||
| self.init(config, | ||
| header: { _ in EmptyView() }, | ||
| row: row, | ||
| rowBackground: rowBackground, | ||
| results: results) | ||
| } | ||
|
|
||
| // omitting Background | ||
| init(_ config: Config, | ||
| @ViewBuilder header: @escaping HeaderContent, | ||
| @ViewBuilder row: @escaping RowContent, | ||
| results: Fetched) | ||
| where RowBack == EmptyView | ||
| { | ||
| self.init(config, | ||
| header: header, | ||
| row: row, | ||
| rowBackground: { _ in EmptyView() }, | ||
| results: results) | ||
| } | ||
|
|
||
| // omitting Header AND Background | ||
| init(_ config: Config, | ||
| @ViewBuilder row: @escaping RowContent, | ||
| results: Fetched) | ||
| where Header == EmptyView, RowBack == EmptyView | ||
| { | ||
| self.init(config, | ||
| header: { _ in EmptyView() }, | ||
| row: row, | ||
| rowBackground: { _ in EmptyView() }, | ||
| results: results) | ||
| } | ||
|
|
||
| } |
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