How to keep an application activated/in foreground

问题:

I'm using Applescript to automate deployment of applications from Xcode 4. I use System Events to click the menu items in the menu bar for that. I have the whole thing working, but with one quirk. If the user clicks elsewhere while my script is running, that is the XCode 4 window goes out of foreground, my entire script fails. Is there a way to force Xcode to be in the foreground from my script?

Now, if only Xcode 4 was at least as scriptable as Xcode 3, I wouldn't have to resort to GUI automation.

回答1:

You can just use the activate command for every click call to ensure that the application is in the foreground. It's not ideal. Really if you're going to use System Events for scripting input like this you have to just accept that the user can't really use the computer whilst the script is running!

If you can break the script down into parts that require user input and parts that don't, you could present a dialog to the user saying something like, "Are you ready to continue with the script? You'll have to leave your computer for a while!" ... and then when it's finished, "Feel free to use your computer again now!" This might make the script a little less obtrusive. Just a suggestion.

回答2:

you should put up some of loading image or something while it is running also anytime you call a gui you should run a loop with a timeout that activates the app then checks for the existence of the items you want to click then when it exists click it and get out of the loop

EDIT

helpful link

回答3:

A combination of mcgrailm and James Bedford's answers worked. I put the menu click for "Edit Schemes…" in a loop until the edit scheme sheet becomes existent. I also had to activate the application just before I clicked "Run without building".

The code:

tell application id "com.apple.dt.Xcode"
    activate
end tell
tell application "System Events"
    tell process "Xcode"
            repeat until sheet 1 of window 2 exists
                    click menu item "Edit Scheme…" of menu "Product" of menu bar item "Product" of menu bar 1
                    tell application "Xcode"
                            activate
                            beep
                    end tell
            end repeat
            tell sheet 1 of window 2
                    set destination to pop up button 2 of group 1
                    click destination
                    set target to "iPad 4.3 Simulator"
                    click menu item target of destination's menu 1
                    set buildConfig to pop up button 3 of group 2
                    click buildConfig
                    click menu item "Debug" of menu 1 of buildConfig
                    click button "OK"
            end tell
            tell application "Xcode"
                    activate
                    beep
            end tell
            tell application id "com.apple.dt.Xcode"
                    activate
            end tell
            click menu item "Run Without Building" of menu 1 of menu item "Perform Action" of menu "Product" of menu bar item "Product" of menu bar 1
    end tell
end tell