feat(clipboard): add plugin (#323)

plugins/clipboard/ios/.gitignore

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+.DS_Store
+/.build
+/Packages
+/*.xcodeproj
+xcuserdata/
+DerivedData/
+.swiftpm/config/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+.netrc
+Package.resolved

plugins/clipboard/ios/Package.swift

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+// swift-tools-version:5.3
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "tauri-plugin-clipboard",
+    platforms: [
+        .iOS(.v13),
+    ],
+    products: [
+        // Products define the executables and libraries a package produces, and make them visible to other packages.
+        .library(
+            name: "tauri-plugin-clipboard",
+            type: .static,
+            targets: ["tauri-plugin-clipboard"]),
+    ],
+    dependencies: [
+        .package(name: "Tauri", path: "../.tauri/tauri-api")
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages this package depends on.
+        .target(
+            name: "tauri-plugin-clipboard",
+            dependencies: [
+                .byName(name: "Tauri")
+            ],
+            path: "Sources")
+    ]
+)

plugins/clipboard/ios/README.md

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+# Tauri Plugin {{ plugin_name_original }}
+
+A description of this package.

plugins/clipboard/ios/Sources/ClipboardPlugin.swift

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+import UIKit
+import WebKit
+import Tauri
+import SwiftRs
+
+class ClipboardPlugin: Plugin {
+	@objc public func write(_ invoke: Invoke) throws {
+		let options = invoke.getObject("options")
+		if let options = options {
+			let clipboard = UIPasteboard.general
+			let kind = invoke.getString("kind", "")
+			switch kind {
+				case "PlainText":
+					let text = options["text"] as? String
+					clipboard.string = text
+				default:
+				  invoke.reject("Unknown kind \(kind)")
+					return
+			}
+			invoke.resolve()
+		} else {
+			invoke.reject("Missing `options` input")
+		}
+	}
+
+	@objc public func read(_ invoke: Invoke) throws {
+		let clipboard = UIPasteboard.general
+		if let text = clipboard.string {
+			invoke.resolve([
+				"kind": "PlainText",
+				"options": text
+			])
+		} else {
+			invoke.reject("Clipboard is empty")
+		}
+	}
+}
+
+@_cdecl("init_plugin_clipboard")
+func initPlugin(name: SRString, webview: WKWebView?) {
+	Tauri.registerPlugin(webview: webview, name: name.toString(), plugin: ClipboardPlugin())
+}

plugins/clipboard/ios/Tests/PluginTests/PluginTests.swift

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+import XCTest
+@testable import ClipboardPlugin
+
+final class ClipboardPluginTests: XCTestCase {
+    func testClipboard() throws {
+        let plugin = ClipboardPlugin()
+    }
+}