finish up fixes for #424 by clarifying delete sketch msg and moving to trash

app/src/processing/app/Platform.java

@@ -399,7 +399,7 @@ public class Platform {
 
 
   /**
-   * Attempts to move to the Trash on OS X, or the Recycle Bin on Windows.
+   * Attempts to move to the Trash on macOS, or the Recycle Bin on Windows.
    * Also tries to find a suitable Trash location on Linux.
    * If not possible, just deletes the file or folder instead.
    * @param file the folder or file to be removed/deleted

app/src/processing/app/Sketch.java

@@ -57,8 +57,8 @@ public class Sketch {
   private File mainFile;
 
   /**
-   * Name of sketch, which is the name of main file
-   * (without .pde or .java extension)
+   * Name of the sketch, which is the name of the folder since 4.0 beta 6.
+   * Prior, it was the "pretty" name of the first tab (they were synonymous).
    */
   private String name;
 
@@ -664,8 +664,8 @@ public class Sketch {
     // confirm deletion with user, yes/no
     Object[] options = { Language.text("prompt.ok"), Language.text("prompt.cancel") };
     String prompt = (currentIndex == 0) ?
-      Language.text("warn.delete.sketch") :
-      Language.interpolate("warn.delete.file", current.getPrettyName());
+      Language.interpolate("warn.delete.sketch_folder", getName()) :
+      Language.interpolate("warn.delete.sketch_file", current.getPrettyName());
     int result = JOptionPane.showOptionDialog(editor,
                                               prompt,
                                               Language.text("warn.delete"),
@@ -675,24 +675,22 @@ public class Sketch {
                                               options,
                                               options[0]);
     if (result == JOptionPane.YES_OPTION) {
-      if (currentIndex == 0) {
+      if (currentIndex == 0) {  // delete the entire sketch
         // need to unset all the modified flags, otherwise tries
         // to do a save on the handleNew()
 
-        // delete the entire sketch
-        Util.removeDir(folder);
-
-        // get the changes into the sketchbook menu
-        //sketchbook.rebuildMenus();
+        // Attempt to move to the trash (falls back to removeDir)
+        try {
+          Platform.deleteFile(folder);
+        } catch (IOException e) {
+          e.printStackTrace();
+        }
 
         // make a new sketch and rebuild the sketch menu
-        //editor.handleNewUnchecked();
-        //editor.handleClose2();
         editor.getBase().rebuildSketchbook();
         editor.getBase().handleClose(editor, false);
 
-      } else {
-        // delete the file
+      } else {  // delete a single tab
         if (!current.deleteFile()) {
           Messages.showMessage(Language.text("delete.messages.cannot_delete.file"),
                                Language.text("delete.messages.cannot_delete.file.description")+" \"" +

app/src/processing/app/Util.java

@@ -312,7 +312,7 @@ public class Util {
 
   /**
    * Remove all files in a directory and the directory itself.
-   * Optinally prints error messages with failed filenames.
+   * Optionally, prints error messages with failed filenames.
    * Does not follow symlinks.
    */
   static public boolean removeDir(File dir, boolean printErrorMessages) {

build/shared/lib/languages/PDE.properties

@@ -589,8 +589,8 @@ contrib.import.errors.link = Error: The library %s has a strange looking downloa
 # Warnings
 
 warn.delete = Delete
-warn.delete.sketch = Are you sure you want to delete this sketch?
-warn.delete.file = Are you sure you want to delete "%s"?
+warn.delete.sketch_folder = Are you sure you want to delete this sketch?\nThis will remove the entire "%s" folder.
+warn.delete.sketch_file = Are you sure you want to delete "%s"?
 warn.cannot_change_mode.title = Cannot change mode
 warn.cannot_change_mode.body = Cannot change mode,\nbecause "%s" mode is not compatible with current mode.
 

todo.txt

@@ -3,18 +3,28 @@ X Bring back getMainProgram() for Python Mode
 X   https://github.com/processing/processing4/issues/409
 X You must first install tweak Mode to use this sketch
 X   https://github.com/processing/processing4/issues/415
+_ test with Python Mode before release
+
+sketchbook/open/deletions
+X test "obvious" sketch folder (and whether it prompts)
+X opening Downloads > something.pde made a p5.js sketch with only an index.html
+X   if no sketch.properties, reset nextMode to the default mode
+X deleting sketch removed contents of Download folder
+X   https://github.com/processing/processing4/issues/424
+X   also very problematic for what happens with Save As
+X   ah, this is because it was just a single .pde file, yikes
+X   sketch.properties should be present, but won't be if the parent is renamed
+o   always write sketch.properties? (would help the later rename case)
+X   when loading, prompt to ask whether the parent folder is the sketch folder?
+X     if it is, write sketch.properties to set the main file
+X     if not, move it to its own folder "move blah.pde to a folder named blah"
+X are you sure you want to delete the sketch "Downloads"
+X   instead of "are you sure you want to delete this sketch?"
+X have 'delete' function move things to the trash
+o   or remove 'delete' as an option altogether
+X new language string: warn.delete.sketch_folder so we can include folder name
+X   and renamed warn.delete.file to warn.delete.sketch_file
 
-_ deleting sketch removed contents of Download folder
-_   https://github.com/processing/processing4/issues/424
-_   at a minimum, need to have 'delete' function move things to the trash
-_   or remove 'delete' as an option altogether
-_   also very problematic for what happens with Save As
-_   ah, this is because it was just a single .pde file, yikes
-_   sketch.properties should be present, but won't be if the parent is renamed
-_   always write sketch.properties? (would help the later rename case)
-_   when loading, prompt to ask whether the parent folder is the sketch folder?
-_     if it is, write sketch.properties to set the main file
-_     if not, move it to its own folder "move blah.pde to a folder named blah"
 
 _ examples handling is less than ideal
 _   examples not mentioned in warning dialog when installing