Building an Application like Chrome App Launcher

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How would one go about building an Application like the Google Chrome App launcher like the one they released for windows, it seems like a simple application that just appears over its taskbar icon, however I wanted to know more about what could be used to make such an app.

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Chrome and its app launcher are all open source, so you can have a look. However there is probably a lot of Chromium knowledge required to be able to navigate the code.

Some details:

  • the launcher is native c++
  • it runs in the same process as the Chrome browser
  • there is no practical way to get the location of the taskbar button, so it is faked using the cursor.

Some trivia:

  • the app launcher is called the app list internally
  • the launcher was originally implemented on ChromeOS, and was first ported to work on Windows. That was simple. It was later ported to Mac OS X (just released!) which was more complicated