Ensure hotkeys are case sensitive

Author: aaron-tdouble

src/index.ts

@@ -389,7 +389,8 @@ function findHotkey(toolbar: Element, key: string): HTMLElement | null {
 
 function shortcut(toolbar: Element, event: KeyboardEvent) {
   if ((event.metaKey && modifierKey === 'Meta') || (event.ctrlKey && modifierKey === 'Control')) {
-    const button = findHotkey(toolbar, event.key)
+    const key = event.shiftKey ? event.key.toUpperCase() : event.key
+    const button = findHotkey(toolbar, key)
     if (button) {
       button.click()
       event.preventDefault()

test/test.js

@@ -193,6 +193,15 @@ describe('markdown-toolbar-element', function () {
       })
     })
 
+    describe('hotkey case-sensitivity', function () {
+      it('does not bold selected text when using the capitalized hotkey', function () {
+        focus()
+        setVisualValue('The |quick| brown fox jumps over the lazy dog')
+        pressHotkey('B') // capital `B` instead of lowercase `b`
+        assert.equal('The |quick| brown fox jumps over the lazy dog', visualValue())
+      })
+    })
+
     describe('bold', function () {
       it('bold selected text when you click the bold icon', function () {
         setVisualValue('The |quick| brown fox jumps over the lazy dog')