使用 NSWorkspace 打开应用程序之间的 URL 时如何发送和接收 NSAppleEventDescriptor? [英] How to send and receive NSAppleEventDescriptor when using NSWorkspace to open URLs between apps?
问题描述
NSWorkspace 有方法 open(_:withAppBundleIdentifier: [...] ):
从一组 URL 中打开一个或多个文件.
func open(_ urls: [URL],withAppBundleIdentifier bundleIdentifier: String?,选项:NSWorkspace.LaunchOptions = [],additionalEventParamDescriptor 描述符:NSAppleEventDescriptor?,launchIdentifiers 标识符:) ->布尔值您要打开的应用程序的 NSApplicationDelegate 具有相应的方法，可以调用这些方法来打开您提供的 URL:
func application(_ sender: NSApplication, openFile filename: String) ->布尔值func 应用程序(_ 发送者:NSApplication，openFiles 文件名:[String])回到 open(_:withAppBundleIdentifier: [...])，该方法有一个 NSAppleEventDescriptor 参数:
additionalEventParamDescriptor 描述符:NSAppleEventDescriptor?
在 AppleEvent 样式描述符中指定的其他选项.例如，您可以使用此参数指定启动应用程序时要打开的其他文档.
我想向将打开文件的应用发送更多信息.
这将类似于通知中的 userInfo 字典使用.
我已经构建了一个 NSAppleEventDescriptor 对象来表示这些信息.我可以在 NSWorkspace open( ... ) 函数中设置这个事件描述符.
但是我如何在目标应用的应用程序委托中接收这个事件描述符?
application(_: openFile:) 函数没有用于事件描述符或任何其他userInfo"类型附加信息的参数.
代码
根据答案和其他问题，我确定了以下解决方案.我现在正在为 Apple Events 获取触发处理程序.但是我在 NSWorkspace 函数上设置的 Apple Event 不是在处理程序中收到的那个！我如何获得我的 Apple 活动?
发送
让 appleEvent = NSAppleEventDescriptor(eventClass: AEEventClass(kCoreEventClass),事件ID:AEEventID(kAEOpenDocuments)，目标描述符:无，返回ID:AEReturnID(kAutoGenerateReturnID)，交易 ID:AETransactionID(kAnyTransactionID))appleEvent.setDescriptor(NSAppleEventDescriptor(string: "THIS IS A TEST"), forKeyword: keyDirectObject)让 didOpen = AppKit.NSWorkspace.shared.open([URL(fileURLWithPath: "/path/image.png")],withAppBundleIdentifier: bundleID,选项:[.withErrorPresentation]，additionalEventParamDescriptor: appleEvent,启动标识符:无)发送 Apple 事件:
<块引用><NSAppleEventDescriptor: 'aevt'\'odoc'{ '----':'utxt'("这是一个测试") }>
接收
class AppDelegate: NSObject, NSApplicationDelegate {func applicationDidFinishLaunching(_ aNotification: Notification) {NSAppleEventManager.shared().setEventHandler(self,andSelector: #selector(handle(event:replyEvent:)),forEventClass: AEEventClass(kCoreEventClass),andEventID: AEEventID(kAEOpenDocuments))}@objc func 句柄(事件:NSAppleEventDescriptor?，replyEvent:NSAppleEventDescriptor?){守卫让事件=事件，event.eventClass == AEEventClass(kCoreEventClass) &&event.eventID == AEEventID(kAEOpenDocuments) else {返回}守卫让 additionalEventParamDescriptor = event.paramDescriptor(forKeyword: keyAEPropData) else {返回}守卫让 directObject = additionalEventParamDescriptor.paramDescriptor(forKeyword: keyDirectObject) else {返回}打印(直接对象)}}收到苹果事件:
<块引用><NSAppleEventDescriptor: 'aevt'\'odoc'{ '----':[ 'bmrk'(888/$626F6F6B7803000000000 [....] 00000AC01000000000000...$) ]
kAEOpenDocuments 事件方法
- (void)applicationWillFinishLaunching:(NSNotification *)notification {[[NSAppleEventManager sharedAppleEventManager] setEventHandler:self andSelector:@selector(handleAppleEvent:withReplyEvent:) forEventClass:kCoreEventClass andEventID:kAEOpenDocuments];}- (void)handleAppleEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent {}-[NSWorkspace openURLs: ...] 生成一个 kAEOpenDocuments 事件，其中包含作为沙盒保存书签数据的 URL.(参见 +[NSURL URLByResolvingBookmarkData: options: relativeToURL: bookmarkDataIsStale: error:]).
additionalEventParamDescriptor:
当使用带有自定义参数的 kAEOpenDocuments 创建 additionalEventParamDescriptor 时，此事件似乎与来自 -[NSWorkspace openURLs: ...].
NSAppleEventDescriptor *targetDescriptor = nil;NSAppleEventDescriptor *appleEvent = nil;targetDescriptor = [NSAppleEventDescriptor descriptorWithDescriptorType:typeApplicationBundleID数据:targetBundleID]；appleEvent = [NSAppleEventDescriptor appleEventWithEventClass:kCoreEventClasseventID:kAEOpenDocuments目标描述符:目标描述符returnID:kAutoGenerateReturnID交易 ID:kAnyTransactionID];[appleEvent setParamDescriptor:[NSAppleEventDescriptor descriptorWithString:@"你真好看"]forKeyword:'urln'];[[NSWorkspace sharedWorkspace] openURLs:@[ [[NSBundle mainBundle] resourceURL] ]withAppBundleIdentifier:bundleIdentifier选项:NSWorkspaceLaunchNewInstanceadditionalEventParamDescriptor:appleEvent启动标识符:NULL];示例 lldb 输出:
<块引用>NSAppleEventDescriptor: 'aevt'\'odoc'{ ~'prdt':'aevt'\'odoc'{'urln':'utxt'("你真好看") }, '----':['bmrk'(1432/$626F6F6B980 ...) }
注意:当为 kAEOpenDocuments 设置 NSAppleEventManager 时，这会覆盖 application:openFile 的 AppKits 内置功能:code> 或 application:openFiles: 方法.自定义事件处理程序需要实现所有这些.
自定义事件方法
根据我的发现，发送带有自定义事件 ID 的自定义事件类不会触发事件处理程序.¯_(ツ)_/¯
NSWorkspace has the method open(_:withAppBundleIdentifier: [...] ):
Opens one or more files from an array of URLs.
func open(_ urls: [URL],
withAppBundleIdentifier bundleIdentifier: String?,
options: NSWorkspace.LaunchOptions = [],
additionalEventParamDescriptor descriptor: NSAppleEventDescriptor?,
launchIdentifiers identifiers:) -> Bool
The NSApplicationDelegate of the app you want to open has corresponding methods that are called to open the URL(s) you provide:
func application(_ sender: NSApplication, openFile filename: String) -> Bool
func application(_ sender: NSApplication, openFiles filenames: [String])
Back to open(_:withAppBundleIdentifier: [...]), that method has an NSAppleEventDescriptor parameter:
additionalEventParamDescriptor descriptor: NSAppleEventDescriptor?
Additional options specified in an AppleEvent-style descriptor. For example, you could use this parameter to specify additional documents to open when the app is launched.
I would like to send additional information to the app that will open the files.
This would be used similarly to the userInfo dictionary on a notification.
I've constructed a NSAppleEventDescriptor object to represent this information. I can set this event descriptor in the NSWorkspace open( ... ) function.
But how do I receive this event descriptor in Application Delegate of the target app?
The application(_: openFile:) functions have no parameters for the event descriptors or any other "userInfo"-type additional information.
Code
Based on answers and other questions, I settled on the solution below. I am now getting a triggered handler for Apple Events. But the Apple Event that I am setting on the NSWorkspace function is not the one that is received in the handler! How do I get my Apple Event instead?
Send
let appleEvent = NSAppleEventDescriptor(eventClass: AEEventClass(kCoreEventClass),
eventID: AEEventID(kAEOpenDocuments),
targetDescriptor: nil,
returnID: AEReturnID(kAutoGenerateReturnID),
transactionID: AETransactionID(kAnyTransactionID))
appleEvent.setDescriptor(NSAppleEventDescriptor(string: "THIS IS A TEST"), forKeyword: keyDirectObject)
let didOpen = AppKit.NSWorkspace.shared.open([URL(fileURLWithPath: "/path/image.png")],
withAppBundleIdentifier: bundleID,
options: [.withErrorPresentation],
additionalEventParamDescriptor: appleEvent,
launchIdentifiers: nil)
Sent Apple Event:
<NSAppleEventDescriptor: 'aevt'\'odoc'{ '----':'utxt'("THIS IS A TEST") }>
Receive
class AppDelegate: NSObject, NSApplicationDelegate {
func applicationDidFinishLaunching(_ aNotification: Notification) {
NSAppleEventManager.shared().setEventHandler(self,
andSelector: #selector(handle(event:replyEvent:)),
forEventClass: AEEventClass(kCoreEventClass),
andEventID: AEEventID(kAEOpenDocuments))
}
@objc func handle(event: NSAppleEventDescriptor?, replyEvent: NSAppleEventDescriptor?) {
guard let event = event,
event.eventClass == AEEventClass(kCoreEventClass) && event.eventID == AEEventID(kAEOpenDocuments) else {
return
}
guard let additionalEventParamDescriptor = event.paramDescriptor(forKeyword: keyAEPropData) else {
return
}
guard let directObject = additionalEventParamDescriptor.paramDescriptor(forKeyword: keyDirectObject) else {
return
}
print(directObject)
}
}
Received Apple Event:
<NSAppleEventDescriptor: 'aevt'\'odoc'{ '----':[ 'bmrk'(888/$626F6F6B7803000000000 [....] 00000AC01000000000000...$) ] }>
kAEOpenDocuments events approach
- (void)applicationWillFinishLaunching:(NSNotification *)notification {
[[NSAppleEventManager sharedAppleEventManager] setEventHandler:self andSelector:@selector(handleAppleEvent:withReplyEvent:) forEventClass:kCoreEventClass andEventID:kAEOpenDocuments];
}
- (void)handleAppleEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent {
}
-[NSWorkspace openURLs: ...] generates an kAEOpenDocuments event that contains the URLs as sandbox save bookmark data. (See +[NSURL URLByResolvingBookmarkData: options: relativeToURL: bookmarkDataIsStale: error:]).
The additionalEventParamDescriptor:
When creating the additionalEventParamDescriptor with kAEOpenDocuments with a custom parameters, this event seems to get merged with the underlaying kAEOpenDocuments event from -[NSWorkspace openURLs: ...].
NSAppleEventDescriptor *targetDescriptor = nil;
NSAppleEventDescriptor *appleEvent = nil;
targetDescriptor = [NSAppleEventDescriptor descriptorWithDescriptorType:typeApplicationBundleID
data:targetBundleID];
appleEvent = [NSAppleEventDescriptor appleEventWithEventClass:kCoreEventClass
eventID:kAEOpenDocuments
targetDescriptor:targetDescriptor
returnID:kAutoGenerateReturnID
transactionID:kAnyTransactionID];
[appleEvent setParamDescriptor:[NSAppleEventDescriptor descriptorWithString:@"You're so good looking"]
forKeyword:'urln'];
[[NSWorkspace sharedWorkspace] openURLs:@[ [[NSBundle mainBundle] resourceURL] ]
withAppBundleIdentifier:bundleIdentifier
options:NSWorkspaceLaunchNewInstance
additionalEventParamDescriptor:appleEvent
launchIdentifiers:NULL];
Sample lldb output:
NSAppleEventDescriptor: 'aevt'\'odoc'{ ~'prdt':'aevt'\'odoc'{ 'urln':'utxt'("You're so good looking") }, '----':[ 'bmrk'(1432/$626F6F6B980 ...) }
Note: When setting the NSAppleEventManager for kAEOpenDocuments this overwrites AppKits build-in functionality of the application:openFile: or application:openFiles: methods. The custom event handler needs to implement all that.
custom events approach
Based on my findings sending a custom event class with a custom event ID does not trigger the event handler. ¯_(ツ)_/¯
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