added undo / redo icons to block context menu

blocks.js

@@ -149,7 +149,7 @@ isSnapObject, copy, PushButtonMorph, SpriteIconMorph, Process, AlignmentMorph*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.blocks = '2016-November-28';
+modules.blocks = '2016-November-29';
 
 var SyntaxElementMorph;
 var BlockMorph;
@@ -5706,7 +5706,13 @@ ScriptsMorph.prototype.userMenu = function () {
         if (this.dropRecord.lastRecord) {
             hasUndropQueue = true;
             menu.addItem(
-                'undrop',
+                [
+                    new SymbolMorph(
+                        'turnBack',
+                        MorphicPreferences.menuFontSize
+                    ),
+                    'undrop'
+                ],
                 'undrop',
                 'undo the last\nblock drop\nin this pane'
             );
@@ -5714,7 +5720,13 @@ ScriptsMorph.prototype.userMenu = function () {
         if (this.dropRecord.nextRecord) {
             hasUndropQueue = true;
             menu.addItem(
-                'redrop',
+                [
+                    new SymbolMorph(
+                        'turnForward',
+                        MorphicPreferences.menuFontSize
+                    ),
+                    'redrop'
+                ],
                 'redrop',
                 'redo the last undone\nblock drop\nin this pane'
             );
@@ -6065,14 +6077,14 @@ ScriptsMorph.prototype.addUndropControls = function () {
         new SymbolMorph("turnForward", 12)
     );
     toolBar.undoButton.alpha = 0.2;
-    toolBar.undoButton.hint = 'undo the last\nblock drop\nin this pane';
+    // toolBar.undoButton.hint = 'undo the last\nblock drop\nin this pane';
     toolBar.undoButton.labelShadowColor = shade;
     toolBar.undoButton.drawNew();
     toolBar.undoButton.fixLayout();
     toolBar.add(toolBar.undoButton);
 
     toolBar.redoButton.alpha = 0.2;
-    toolBar.redoButton.hint = 'redo the last undone\nblock drop\nin this pane';
+    // toolBar.redoButton.hint = 'redo the last undone\nblock drop\nin this pane';
     toolBar.redoButton.labelShadowColor = shade;
     toolBar.redoButton.drawNew();
     toolBar.redoButton.fixLayout();

history.txt

@@ -3141,10 +3141,14 @@ http://snap.berkeley.edu/run#cloud:Username=jens&ProjectName=rotation
 * Morphic: First-class animations
 * Blocks, Objects, GUI: Switch to new animation mechanism, add a few
 
-161125
+161128
 ------
 * Objects, Blocks: map keyboard shortcut ctr-y to “undrop” (in addition to shift-ctrl-z)
 * Blocks: added symbols for “turnBack” and “turnForward”
 * Morphic: added support for floating tool bars in scroll frames
 * Blocks: added dynamic “undo” / “redo” buttons to each scripting pane
 * GUI, Blocks: Enable nested auto-wrapping by default
+
+161129
+------
+* Blocks: added undo / redo icons to block context menu