96 lines
3.8 KiB
Swift
96 lines
3.8 KiB
Swift
import AppKit
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import ApplicationServices
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import OpenLessCore
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public enum InsertResult: Sendable {
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case inserted
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case copiedFallback(reason: String)
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}
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public final class TextInserter: @unchecked Sendable {
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public init() {}
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@MainActor
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public func insert(_ text: String) async -> InsertResult {
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guard !text.isEmpty else { return .copiedFallback(reason: "empty text") }
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// 不论后续走 AX 还是模拟粘贴，先把剪贴板就绪：
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// - AX 声称成功但实际没插入（Electron / Web textarea 常见）时，用户能 Cmd+V 兜底
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// - 模拟粘贴本身就需要剪贴板里有内容
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copyToClipboard(text)
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// 策略 1：通过 AX 找到当前 focused element 直接写文本（macOS 原生输入框成功率高）
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if let result = tryAXInsert(text) {
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return result
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}
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// 策略 2：模拟 Cmd+V（覆盖 Electron/网页/IM 等没实现 AX 写入的场景）
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if simulatePaste() {
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return .inserted
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}
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return .copiedFallback(reason: "AX + 模拟粘贴均失败；文本已复制，请 ⌘V 手动粘贴")
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}
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// MARK: - AX
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private func tryAXInsert(_ text: String) -> InsertResult? {
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let systemWide = AXUIElementCreateSystemWide()
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var focused: AnyObject?
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let err = AXUIElementCopyAttributeValue(systemWide, kAXFocusedUIElementAttribute as CFString, &focused)
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guard err == .success, let element = focused else { return nil }
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// swiftlint:disable:next force_cast
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let elem = element as! AXUIElement
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var roleObj: AnyObject?
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AXUIElementCopyAttributeValue(elem, kAXRoleAttribute as CFString, &roleObj)
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let role = roleObj as? String ?? ""
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// 仅在 textfield / textarea 上尝试 AXValue 写入
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if role == kAXTextFieldRole as String || role == kAXTextAreaRole as String {
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// 先尝试在 selection 处插入
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var rangeObj: AnyObject?
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let rangeErr = AXUIElementCopyAttributeValue(elem, kAXSelectedTextRangeAttribute as CFString, &rangeObj)
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if rangeErr == .success, let _ = rangeObj {
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let setErr = AXUIElementSetAttributeValue(elem, kAXSelectedTextAttribute as CFString, text as CFTypeRef)
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if setErr == .success {
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return .inserted
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}
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}
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// 否则覆盖整个 value
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var valueObj: AnyObject?
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AXUIElementCopyAttributeValue(elem, kAXValueAttribute as CFString, &valueObj)
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let existing = valueObj as? String ?? ""
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let combined = existing + text
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let setErr = AXUIElementSetAttributeValue(elem, kAXValueAttribute as CFString, combined as CFTypeRef)
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if setErr == .success {
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return .inserted
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}
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}
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return nil
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}
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// MARK: - Clipboard + simulated paste
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private func copyToClipboard(_ text: String) {
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NSPasteboard.general.clearContents()
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NSPasteboard.general.setString(text, forType: .string)
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}
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private func simulatePaste() -> Bool {
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// 用 .hidSystemState + .cghidEventTap：让 Cmd+V 看起来像真实硬件键盘，
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// 不容易被 Electron / 网页输入框忽略；之前用 .combinedSessionState +
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// .cgAnnotatedSessionEventTap 在某些 app 上不触发粘贴。
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let source = CGEventSource(stateID: .hidSystemState)
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guard let down = CGEvent(keyboardEventSource: source, virtualKey: 9, keyDown: true), // V key
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let up = CGEvent(keyboardEventSource: source, virtualKey: 9, keyDown: false) else {
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return false
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}
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down.flags = .maskCommand
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up.flags = .maskCommand
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down.post(tap: .cghidEventTap)
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up.post(tap: .cghidEventTap)
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return true
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}
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}
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