1 files changed, 133 insertions, 0 deletions
diff --git a/xpfe/appshell/nsAppShellWindowEnumerator.h b/xpfe/appshell/nsAppShellWindowEnumerator.h
new file mode 100644
index 0000000000..b5dc828dcf
--- /dev/null
+++ b/xpfe/appshell/nsAppShellWindowEnumerator.h
@@ -0,0 +1,133 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 nsAppShellWindowEnumerator_h
+#define nsAppShellWindowEnumerator_h
+
+#include "nsCOMPtr.h"
+#include "nsString.h"
+
+#include "nsSimpleEnumerator.h"
+#include "nsIAppWindow.h"
+
+class nsWindowMediator;
+
+//
+// nsWindowInfo
+//
+
+struct nsWindowInfo {
+  nsWindowInfo(nsIAppWindow* inWindow, int32_t inTimeStamp);
+  ~nsWindowInfo();
+
+  nsCOMPtr<nsIAppWindow> mWindow;
+  int32_t mTimeStamp;
+  uint32_t mZLevel;
+
+  // each struct is in two, independent, circular, doubly-linked lists
+  nsWindowInfo *mYounger,  // next younger in sequence
+      *mOlder;
+  nsWindowInfo *mLower,  // next lower in z-order
+      *mHigher;
+
+  bool TypeEquals(const nsAString& aType);
+  void InsertAfter(nsWindowInfo* inOlder, nsWindowInfo* inHigher);
+  void Unlink(bool inAge, bool inZ);
+  void ReferenceSelf(bool inAge, bool inZ);
+};
+
+//
+// virtual enumerators
+//
+
+class nsAppShellWindowEnumerator : public nsSimpleEnumerator {
+  friend class nsWindowMediator;
+
+ public:
+  nsAppShellWindowEnumerator(const char16_t* aTypeString,
+                             nsWindowMediator& inMediator);
+  NS_IMETHOD GetNext(nsISupports** retval) override = 0;
+  NS_IMETHOD HasMoreElements(bool* retval) override;
+
+ protected:
+  ~nsAppShellWindowEnumerator() override;
+
+  void AdjustInitialPosition();
+  virtual nsWindowInfo* FindNext() = 0;
+
+  void WindowRemoved(nsWindowInfo* inInfo);
+
+  nsWindowMediator* mWindowMediator;
+  nsString mType;
+  nsWindowInfo* mCurrentPosition;
+};
+
+class nsASDOMWindowEnumerator : public nsAppShellWindowEnumerator {
+ public:
+  nsASDOMWindowEnumerator(const char16_t* aTypeString,
+                          nsWindowMediator& inMediator);
+  virtual ~nsASDOMWindowEnumerator();
+  NS_IMETHOD GetNext(nsISupports** retval) override;
+};
+
+class nsASAppWindowEnumerator : public nsAppShellWindowEnumerator {
+ public:
+  nsASAppWindowEnumerator(const char16_t* aTypeString,
+                          nsWindowMediator& inMediator);
+  virtual ~nsASAppWindowEnumerator();
+  NS_IMETHOD GetNext(nsISupports** retval) override;
+
+  const nsID& DefaultInterface() override { return NS_GET_IID(nsIAppWindow); }
+};
+
+//
+// concrete enumerators
+//
+
+class nsASDOMWindowEarlyToLateEnumerator : public nsASDOMWindowEnumerator {
+ public:
+  nsASDOMWindowEarlyToLateEnumerator(const char16_t* aTypeString,
+                                     nsWindowMediator& inMediator);
+
+  virtual ~nsASDOMWindowEarlyToLateEnumerator();
+
+ protected:
+  virtual nsWindowInfo* FindNext() override;
+};
+
+class nsASAppWindowEarlyToLateEnumerator : public nsASAppWindowEnumerator {
+ public:
+  nsASAppWindowEarlyToLateEnumerator(const char16_t* aTypeString,
+                                     nsWindowMediator& inMediator);
+
+  virtual ~nsASAppWindowEarlyToLateEnumerator();
+
+ protected:
+  virtual nsWindowInfo* FindNext() override;
+};
+
+class nsASAppWindowFrontToBackEnumerator : public nsASAppWindowEnumerator {
+ public:
+  nsASAppWindowFrontToBackEnumerator(const char16_t* aTypeString,
+                                     nsWindowMediator& inMediator);
+
+  virtual ~nsASAppWindowFrontToBackEnumerator();
+
+ protected:
+  virtual nsWindowInfo* FindNext() override;
+};
+
+class nsASAppWindowBackToFrontEnumerator : public nsASAppWindowEnumerator {
+ public:
+  nsASAppWindowBackToFrontEnumerator(const char16_t* aTypeString,
+                                     nsWindowMediator& inMediator);
+
+  virtual ~nsASAppWindowBackToFrontEnumerator();
+
+ protected:
+  virtual nsWindowInfo* FindNext() override;
+};
+
+#endif