Bug 1550561 - Support edit context menu on HTML inputs in chrome documents. r=bgrins

Differential Revision: https://phabricator.services.mozilla.com/D30552

--HG--
extra : moz-landing-system : lando

toolkit/content/editMenuOverlay.js

@@ -64,7 +64,7 @@ window.addEventListener("contextmenu", (e) => {
   // Note that there's not a risk of e.target being XBL anonymous content for <textbox> (which manages
   // its own context menu), because e.target will be the XBL binding parent in that case.
   let needsContextMenu = e.target.ownerDocument == document && !e.defaultPrevented && (
-    (e.target.localName == "textarea" && e.target.namespaceURI == HTML_NS)
+    (["textarea", "input"].includes(e.target.localName) && e.target.namespaceURI == HTML_NS)
     || e.target.closest("textbox[is='search-textbox']")
   );
 

toolkit/content/tests/chrome/file_edit_contextmenu.xul

@@ -24,7 +24,7 @@
 </commandset>
 
 <html:textarea />
-
+<html:input />
 <textbox is="search-textbox"/>
 
 </window>

toolkit/content/tests/chrome/test_edit_contextmenu.html

@@ -21,6 +21,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=1513343
 
       const elements = [
         win.document.querySelector("textarea"),
+        win.document.querySelector("input"),
         win.document.querySelector("textbox[is='search-textbox']"),
       ];
       for (const element of elements) {