fix: Fix bug that caused text to be selected when long-pressing in the workspace on a touch device. (#8670)

* fix: Fix bug that caused text to be selected when long-pressing in the workspace on a touch device.

* chore: Fix test failure.

core/css.ts

@@ -79,6 +79,8 @@ let content = `
   position: relative;
   overflow: hidden;  /* So blocks in drag surface disappear at edges */
   touch-action: none;
+  user-select: none;
+  -webkit-user-select: none;
 }
 
 .blocklyNonSelectable {
@@ -266,17 +268,6 @@ let content = `
   cursor: default;
 }
 
-/*
-  Don't allow users to select text.  It gets annoying when trying to
-  drag a block and selected text moves instead.
-*/
-.blocklySvg text {
-  user-select: none;
-  -ms-user-select: none;
-  -webkit-user-select: none;
-  cursor: inherit;
-}
-
 .blocklyHidden {
   display: none;
 }

core/toolbox/toolbox.ts

@@ -197,7 +197,6 @@ export class Toolbox
     const toolboxContainer = document.createElement('div');
     toolboxContainer.setAttribute('layout', this.isHorizontal() ? 'h' : 'v');
     dom.addClass(toolboxContainer, 'blocklyToolboxDiv');
-    dom.addClass(toolboxContainer, 'blocklyNonSelectable');
     toolboxContainer.setAttribute('dir', this.RTL ? 'RTL' : 'LTR');
     return toolboxContainer;
   }

tests/mocha/toolbox_test.js

@@ -47,10 +47,7 @@ suite('Toolbox', function () {
     test('Init called -> HtmlDiv is inserted before parent node', function () {
       const toolboxDiv = Blockly.common.getMainWorkspace().getInjectionDiv()
         .childNodes[0];
-      assert.equal(
+      assert.equal(toolboxDiv.className, 'blocklyToolboxDiv');
-        toolboxDiv.className,
-        'blocklyToolboxDiv blocklyNonSelectable',
-      );
     });
     test('Init called -> Toolbox is subscribed to background and foreground colour', function () {
       const themeManager = this.toolbox.workspace_.getThemeManager();