删除可可基于文档的应用程序中的保存功能
我目前正在开发 Apple 的 Mac 开发网站< 的 Web 浏览器项目< /a>.
我已经完成了该项目，但遇到了一些问题。我已将项目创建为基于文档的 Cocoa 应用程序，现在每当我在网络上的任何文本字段中输入文本时，红色交通灯按钮都会在中间显示一个黑点，表示未保存的文档。当我尝试关闭窗口或完全退出应用程序时，会弹出一个警告，就像 TextEdit 或 Pages 中的警告一样，提醒我未保存的更改。这不是什么大问题，但我希望有人能告诉我如何删除基于 Cocoa 文档的应用程序的该功能。
I am currently working on a web browser project from Apple's Mac Dev site.
I have completed the project, but have a bit of a problem. I have created the project as a Document-Based Cocoa Application, and now whenever I enter text in any text field on the web, the red traffic light button shows a black dot in the middle that signifies an unsaved document. When I try to close the window or entirely quit the application, a warning pops up like that in TextEdit or Pages where it alerts me to unsaved changes. It's not too much of a problem, but I would like if someone could please tell me how to remove that feature of a Cocoa Document-Based Application.
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如果您的应用程序不是基于文档的，为什么要使用基于文档的应用程序？基于文档的应用程序本质上包括
打开和保存的概念；这是它们的基本组成部分。无论如何，您可以通过适当配置
NSDocument来“解决”这个问题；覆盖正确的方法，否则会破坏更改计数和更改。文档的脏状态。但这只是一个解决方法。NSDocument的文档包含您需要的所有信息。一个更简洁的整体解决方案是重构您的应用程序以不使用
NSDocument。在 Cocoa 中创建多个窗口非常简单（与菜单项绑定的操作方法，其中操作方法加载 nib 文件；如果我没记错的话，您甚至仍然可以使用 NSWindowController）。Why a document based application if your application isn't document based? Document based applications inherently include the concept of
openandsave; it is a fundamental part of what they are.In any case, you could "work around" this by configuring
NSDocumentappropriately; override the proper methods and otherwise muck with the change count & dirty state of the document. But it'll be just that, a workaround. The documentation forNSDocumenthas all the information you need.A cleaner overall solution would be to refactor your app to not use
NSDocument. Creating multiple windows is quite straightforward in Cocoa (an action method tied to a menu item where the action method loads a nib file; if I remember correctly, you could even useNSWindowControllerstill).一个更简单的解决方案就是重写 isDocumentEdited 方法以始终返回 NO。
An easier solution would simply be to override the
isDocumentEditedmethod to always return NO.