1 files changed, 123 insertions, 0 deletions
diff --git a/dom/xul/XULButtonElement.h b/dom/xul/XULButtonElement.h
new file mode 100644
index 0000000000..fc880210a2
--- /dev/null
+++ b/dom/xul/XULButtonElement.h
@@ -0,0 +1,123 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef dom_xul_XULButtonElement_h__
+#define dom_xul_XULButtonElement_h__
+
+#include "mozilla/Attributes.h"
+#include "nsINode.h"
+#include "nsXULElement.h"
+
+class nsMenuBarFrame;
+class nsMenuPopupFrame;
+class nsXULMenuCommandEvent;
+
+namespace mozilla::dom {
+
+class KeyboardEvent;
+class XULPopupElement;
+class XULMenuBarElement;
+class XULMenuParentElement;
+
+class XULButtonElement : public nsXULElement {
+ public:
+  explicit XULButtonElement(
+      already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
+
+  ~XULButtonElement() override;
+
+  MOZ_CAN_RUN_SCRIPT_BOUNDARY bool MouseClicked(WidgetGUIEvent&);
+  MOZ_CAN_RUN_SCRIPT nsresult PostHandleEvent(EventChainPostVisitor&) override;
+  MOZ_CAN_RUN_SCRIPT void PostHandleEventForMenus(EventChainPostVisitor&);
+  MOZ_CAN_RUN_SCRIPT void HandleEnterKeyPress(WidgetEvent&);
+
+  void PopupOpened();
+  MOZ_CAN_RUN_SCRIPT void PopupClosed(bool aDeselectMenu);
+
+  XULPopupElement* GetContainingPopupElement() const;
+  nsMenuPopupFrame* GetContainingPopupWithoutFlushing() const;
+  MOZ_CAN_RUN_SCRIPT void ToggleMenuState();
+  bool IsMenuPopupOpen();
+
+  bool IsMenuItem() const { return NodeInfo()->Equals(nsGkAtoms::menuitem); }
+  bool IsMenuList() const { return NodeInfo()->Equals(nsGkAtoms::menulist); }
+  bool IsMenuActive() const;
+  MOZ_CAN_RUN_SCRIPT void OpenMenuPopup(bool aSelectFirstItem);
+  void CloseMenuPopup(bool aDeselectMenu);
+
+  bool IsOnMenu() const;
+  bool IsOnMenuList() const;
+  bool IsOnMenuBar() const;
+  bool IsOnContextMenu() const;
+
+  XULMenuParentElement* GetMenuParent() const;
+
+  void UnbindFromTree(bool aNullParent) override;
+
+  MOZ_CAN_RUN_SCRIPT bool HandleKeyPress(KeyboardEvent& keyEvent);
+  bool OpenedWithKey() const;
+  // Called to execute our command handler.
+  MOZ_CAN_RUN_SCRIPT void ExecuteMenu(WidgetEvent&);
+  MOZ_CAN_RUN_SCRIPT void ExecuteMenu(Modifiers, int16_t aButton,
+                                      bool aIsTrusted);
+
+  // Whether we are a menu/menulist/menuitem element.
+  bool IsAlwaysMenu() const { return mIsAlwaysMenu; }
+  // Whether we should behave like a menu. This is the above plus buttons with
+  // type=menu attribute.
+  bool IsMenu() const;
+
+  nsChangeHint GetAttributeChangeHint(const nsAtom* aAttribute,
+                                      int32_t aModType) const override;
+  void AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
+                    const nsAttrValue* aValue, const nsAttrValue* aOldValue,
+                    nsIPrincipal* aSubjectPrincipal, bool aNotify) override;
+
+  NS_IMPL_FROMNODE_HELPER(XULButtonElement,
+                          IsAnyOfXULElements(nsGkAtoms::checkbox,
+                                             nsGkAtoms::radio, nsGkAtoms::thumb,
+                                             nsGkAtoms::button, nsGkAtoms::menu,
+                                             nsGkAtoms::menulist,
+                                             nsGkAtoms::menuitem,
+                                             nsGkAtoms::toolbarbutton,
+                                             nsGkAtoms::toolbarpaletteitem,
+                                             nsGkAtoms::scrollbarbutton))
+
+  nsMenuPopupFrame* GetMenuPopup(FlushType aFlushType);
+  nsMenuPopupFrame* GetMenuPopupWithoutFlushing() const;
+  XULPopupElement* GetMenuPopupContent() const;
+  int32_t MenuOpenCloseDelay() const;
+
+  bool IsDisabled() const { return GetXULBoolAttr(nsGkAtoms::disabled); }
+
+ private:
+  XULMenuBarElement* GetMenuBar() const;
+  void Blurred();
+  enum class MenuType {
+    Checkbox,
+    Radio,
+    Normal,
+  };
+  Maybe<MenuType> GetMenuType() const;
+
+  void UncheckRadioSiblings();
+  void StopBlinking();
+  MOZ_CAN_RUN_SCRIPT void StartBlinking();
+  void KillMenuOpenTimer();
+  MOZ_CAN_RUN_SCRIPT void PassMenuCommandEventToPopupManager();
+
+  bool mIsHandlingKeyEvent = false;
+
+  // Whether this is a XULMenuElement.
+  const bool mIsAlwaysMenu;
+  RefPtr<nsXULMenuCommandEvent> mDelayedMenuCommandEvent;
+  nsCOMPtr<nsITimer> mMenuOpenTimer;
+  nsCOMPtr<nsITimer> mMenuBlinkTimer;
+};
+
+}  // namespace mozilla::dom
+
+#endif