Merge pull request #2043 from livecode/bugfix-21885

Prevent unnecessary disk writes of revPreferences stack

Author: livecodepanos

Toolset/home.livecodescript

@@ -907,7 +907,7 @@ local sSavePreferencesMessage
 
 command revInternal__SavePreferences
    cancel sSavePreferencesMessage
-   send "__revInternal_SavePreferences" to me in 500 milliseconds
+   send "__revInternal_SavePreferences" to me in 30 seconds
    put the result into sSavePreferencesMessage
 end revInternal__SavePreferences
 

Toolset/libraries/revidelibrary.8.livecodescript

@@ -2280,9 +2280,11 @@ Example: set revIDEGetPreference("text size") to 12
 Returns (Any): The value of the preference
 */
 on revIDESetPreference pPreferenceName, pValue
-   set the pPreferenceName of stack "revpreferences" to pValue
-   revInternal__SavePreferences
-   ideMessageSend "idePreferenceChanged:" & pPreferenceName,pValue
+   if the pPreferenceName of stack "revpreferences" is not pValue then
+      set the pPreferenceName of stack "revpreferences" to pValue
+      revInternal__SavePreferences
+      ideMessageSend "idePreferenceChanged:" & pPreferenceName,pValue
+   end if
 end revIDESetPreference
 
 command revIDESetPreferenceOfSet pSetName, pPreferenceName, pValue

notes/bugfix-21885.md

@@ -0,0 +1 @@
+# Prevent unnecessary disk writes of revPreferences stack that can cause slowdown on Windows