SFONDO
È stato sviluppato uno script Automator per salvare una schermata di acquisizione su un file (da qualcuno più intelligente di me ). Per qualche motivo non è affidabile (raramente) salvare lo screenshot nel file. Il codice è presentato di seguito.
Il cursore di cattura dello schermo esegue costantemente quando chiamato: lo screenshot viene catturato in memoria. Al contrario, lo screenshot non viene salvato in modo coerente nel file come indicato sotto
Domande
- In che modo è possibile diagnosticare la causa principale del problema di salvataggio?
- Ci sono errori evidenti nel codice che causano il problema di salvataggio?
- C'è un problema con le autorizzazioni? Come confermare / testare?
codice
on run {input, parameters}
-- # Screen Shot to Clipboard and File
-- # Clear the clipboard so the 'repeat until isReady ...' loop works properly.
set the clipboard to ""
-- # Copy picture of selected area to the clipboard, press: ⌃⇧⌘4
-- # Note that on my system I need to keystroke '$' instead of '4'.
-- # I assume this is because the 'shift' key is being pressed.
tell application "System Events"
keystroke "$" using {control down, shift down, command down}
end tell
-- # Wait while user makes the selection and releases the mouse or times out.
-- # Note that the time out also acts as an escape key press of sorts. In other
-- # words, if the user actually presses the escape key it has no effect on this
-- # script like it would if pressing the normal shortcut outside of the script.
-- #
-- # As coded, the time out is 5 seconds. Adjust 'or i is greater than 10' and or
-- # 'delay 0.5' as appropriate for your needs to set a different length time out.
-- # This means, as is, you have 5 seconds to select the area of the screen you
-- # want to capture and let go of the mouse button, otherwise it times out.
set i to 0
set isReady to false
repeat until isReady or i is greater than 10
delay 0.5
set i to i + 1
set cbInfo to (clipboard info) as string
if cbInfo contains "class PNGf" then
set isReady to true
end if
end repeat
if not isReady then
-- # User either pressed the Esc key or timed out waiting.
return -- # Exit the script without further processing.
end if
-- # Build out the screen shot path filename so its convention is of
-- # the default behavior when saving a screen shot to the Desktop.
set theDateTimeNow to (do shell script "date \"+%Y-%m-%d at %l.%M.%S %p\"")
set theFilename to "Screen Shot " & theDateTimeNow & ".png"
-- # set thePathFilename to POSIX path of (path to desktop folder as string) & theFilename
set thePathFilename to "/Users/user/Documents/Captures/" & theFilename
-- # Retrieve the PNG data from the clipboard and write it to a disk file.
set pngData to the clipboard as «class PNGf»
delay 0.5
try
set fileNumber to open for access thePathFilename with write permission
write pngData to fileNumber
close access fileNumber
on error eStr number eNum
try
close access fileNumber
end try
activate
display dialog eStr & " number " & eNum buttons {"OK"} default button 1 with title "File I/O Error..." with icon caution
end try
-- # Hide the file extension as is the default.
-- # Convert the POSIX path filename to an alias.
set thePathFilename to POSIX file thePathFilename
set thePathFilename to thePathFilename as alias
tell application "Finder"
try
set extension hidden of thePathFilename to true
end try
end tell
return input
end run