mirror of
https://github.com/shadowsocks/ShadowsocksX-NG.git
synced 2026-11-08 11:54:50 +00:00
Qiu Yuzhou
245ed3c5b2
Use native Table row and insertion callbacks instead of an outer drop receiver. Resolve server rows and insertion lines to their containing group, and root insertion points to the catalog root. Verify insertion and server-row targets with regression tests.
40 lines
1.4 KiB
Swift
40 lines
1.4 KiB
Swift
import AppKit
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import UniformTypeIdentifiers
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/// 原生 Table 拖放使用系统字符串表示；接收方仍校验本表拖动的节点身份。
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@MainActor
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final class ServerTableDropState {
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private(set) var draggedID: NodeID?
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func provider(for id: NodeID, payload: String) -> NSItemProvider {
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draggedID = id
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return NSItemProvider(object: payload as NSString)
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}
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func loadPayload(_ providers: [NSItemProvider], action: @escaping @MainActor ([String]) -> Void) {
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guard providers.count == 1, let provider = providers.first, let expected = draggedID else {
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return
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}
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provider.loadDataRepresentation(forTypeIdentifier: UTType.plainText.identifier) { data, _ in
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guard let data, String(data: data, encoding: .utf8) == expected.rawValue else { return }
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Task { @MainActor in
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guard self.draggedID == expected else { return }
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action([expected.rawValue])
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}
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}
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}
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/// 分组行接收到自身；服务器行接收到其所属分组（根层服务器对应根层）。
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static func rowParent(for node: CatalogTreeNode) -> NodeID? {
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node.isGroup ? node.id : node.parentID
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}
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/// 插入线位于下一行的同级容器内；顶部和表尾空白表示根层。
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static func insertionParent(at index: Int, in rows: [CatalogTreeRow]) -> NodeID? {
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guard rows.indices.contains(index) else { return nil }
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return rows[index].node.parentID
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}
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func finishDrop() { draggedID = nil }
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}
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