diff options
Diffstat (limited to 'uitask.go')
| -rw-r--r-- | uitask.go | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/uitask.go b/uitask.go deleted file mode 100644 index 34d0dd1..0000000 --- a/uitask.go +++ /dev/null @@ -1,49 +0,0 @@ -// 11 february 2014 - -package ui - -import ( - "runtime" -) - -// Go sets up the UI environment and pulses Ready. -// If initialization fails, Go returns an error and Ready is not pulsed. -// Otherwise, Go does not return to its caller until Stop is pulsed, at which point Go() will return nil. -// After Go() returns, you cannot call future ui functions/methods meaningfully. -// Pulsing Stop will cause Go() to return immediately; the programmer is responsible for cleaning up (for instance, hiding open Windows) beforehand. -// -// It is not safe to call ui.Go() in a goroutine. It must be called directly from main(). This means if your code calls other code-modal servers (such as http.ListenAndServe()), they must be run from goroutines. (This is due to limitations in various OSs, such as Mac OS X.) -// -// Go() does not process the command line for flags (that is, it does not call flag.Parse()), nor does package ui add any of the underlying toolkit's supported command-line flags. -// If you must, and if the toolkit also has environment variable equivalents to these flags (for instance, GTK+), use those instead. -func Go() error { - runtime.LockOSThread() - if err := uiinit(); err != nil { - return err - } - Ready <- struct{}{} - close(Ready) - ui() - return nil -} - -// Ready is pulsed when Go() is ready to begin accepting requests to the safe methods. -// Go() will wait for something to receive on Ready, then Ready will be closed. -var Ready = make(chan struct{}) - -// Stop should be pulsed when you are ready for Go() to return. -// Pulsing Stop will cause Go() to return immediately; the programmer is responsible for cleaning up (for instance, hiding open Windows) beforehand. -// Do not pulse Stop more than once. -var Stop = make(chan struct{}) - -// uitask is an object of a type implemented by each uitask_***.go that does everything that needs to be communicated to the main thread. -type _uitask struct{} -var uitask = _uitask{} - -// and the required methods are: -var xuitask interface { - // creates a window - // TODO whether this waits for the window creation to finish is implementation defined? - createWindow(*Window, Control, bool) -} = uitask -// compilation will fail if uitask doesn't have all these methods |