This project demonstrates how to create a macOS application that can be launched from web links. Through custom URL Schemes (such as myprotocol://), when users click on special links in web pages, it can automatically launch the specified macOS application.

Utilizes macOS's URL Scheme mechanism. When the system detects a URL with a specific protocol, it automatically launches the application registered for that protocol.

• Reference 1: http://www.macosxautomation.com/applescript/linktrigger/
• Reference 2: http://hublog.hubmed.org/archives/001154.html

1. Use Platypus to create test.app
2. Place test.app in the /Applications/ folder
3. Add URL Scheme configuration to Info.plist

test.app/
└── Contents/
    ├── Info.plist
    ├── MacOS/
    │   └── test
    └── Resources/
        ├── AppSettings.plist
        ├── MainMenu.nib
        ├── appIcon.icns
        └── script

Add the following configuration to Info.plist:

<key>CFBundleURLTypes</key>
<array>
   <dict>
       <key>CFBundleURLName</key>
       <string>My Protocol</string>
       <key>CFBundleURLSchemes</key>
       <array>
           <string>myprotocol</string>
       </array>
   </dict>
</array>
<key>NSUIElement</key>
<true/>

• CFBundleURLSchemes: Defines the custom protocol name (in this example: myprotocol)
• NSUIElement: Set to true to run the application in the background without appearing in the Dock

Use Platypus tool to create the application based on the test.platypus configuration file.

Open the test.html file and click the link inside:

<a href='myprotocol://.'>test</a>

1. Click the myprotocol:// link in the web page
2. macOS system automatically recognizes the protocol and launches the corresponding application
3. The application executes the default script actions

• test.html: Test web page containing links that trigger custom protocols
• test.platypus: Platypus project configuration file
• test.sh: Execution script (can customize application behavior when launched)
• test.app/: Final generated macOS application

1. The application must be placed in the /Applications/ directory to be properly recognized by the system
2. If using window.open to open links, remember to add the window.open("", "_self") parameter
3. Setting NSUIElement to true allows the application to run in the background, suitable for this type of utility tool

• Quickly launch local applications from web pages
• Create a bridge mechanism between web pages and desktop applications
• Implement one-click installation or configuration features