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6ecd66ed03
This comes back to bug 42557 and co. It only does something half-reasonable on Windows (on macOS we just lie and make z-order tracking be latest-active tracking), and given we don't use the special zorder flags elsewhere I'm pretty sure we should be able to just rip this off... On some DEs like Wayland we can't re-stack toplevel windows. Differential Revision: https://phabricator.services.mozilla.com/D213602
133 lines
3.6 KiB
C++
133 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsAppShellWindowEnumerator_h
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#define nsAppShellWindowEnumerator_h
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "nsSimpleEnumerator.h"
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#include "nsIAppWindow.h"
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class nsWindowMediator;
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//
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// nsWindowInfo
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//
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struct nsWindowInfo {
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nsWindowInfo(nsIAppWindow* inWindow, int32_t inTimeStamp);
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~nsWindowInfo();
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nsCOMPtr<nsIAppWindow> mWindow;
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int32_t mTimeStamp;
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// each struct is in two, independent, circular, doubly-linked lists
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nsWindowInfo *mYounger, // next younger in sequence
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*mOlder;
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nsWindowInfo *mLower, // next lower in z-order
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*mHigher;
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bool TypeEquals(const nsAString& aType);
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void InsertAfter(nsWindowInfo* inOlder, nsWindowInfo* inHigher);
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void Unlink(bool inAge, bool inZ);
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void ReferenceSelf(bool inAge, bool inZ);
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};
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//
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// virtual enumerators
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//
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class nsAppShellWindowEnumerator : public nsSimpleEnumerator {
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friend class nsWindowMediator;
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public:
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nsAppShellWindowEnumerator(const char16_t* aTypeString,
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nsWindowMediator& inMediator);
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NS_IMETHOD GetNext(nsISupports** retval) override = 0;
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NS_IMETHOD HasMoreElements(bool* retval) override;
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protected:
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~nsAppShellWindowEnumerator() override;
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void AdjustInitialPosition();
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virtual nsWindowInfo* FindNext() = 0;
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void WindowRemoved(nsWindowInfo* inInfo);
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nsWindowMediator* mWindowMediator;
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nsString mType;
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nsWindowInfo* mCurrentPosition;
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};
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class nsASDOMWindowEnumerator : public nsAppShellWindowEnumerator {
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public:
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nsASDOMWindowEnumerator(const char16_t* aTypeString,
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nsWindowMediator& inMediator);
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virtual ~nsASDOMWindowEnumerator();
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NS_IMETHOD GetNext(nsISupports** retval) override;
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};
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class nsASAppWindowEnumerator : public nsAppShellWindowEnumerator {
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public:
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nsASAppWindowEnumerator(const char16_t* aTypeString,
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nsWindowMediator& inMediator);
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virtual ~nsASAppWindowEnumerator();
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NS_IMETHOD GetNext(nsISupports** retval) override;
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const nsID& DefaultInterface() override { return NS_GET_IID(nsIAppWindow); }
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};
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//
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// concrete enumerators
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//
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class nsASDOMWindowEarlyToLateEnumerator : public nsASDOMWindowEnumerator {
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public:
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nsASDOMWindowEarlyToLateEnumerator(const char16_t* aTypeString,
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nsWindowMediator& inMediator);
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virtual ~nsASDOMWindowEarlyToLateEnumerator();
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protected:
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virtual nsWindowInfo* FindNext() override;
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};
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class nsASAppWindowEarlyToLateEnumerator : public nsASAppWindowEnumerator {
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public:
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nsASAppWindowEarlyToLateEnumerator(const char16_t* aTypeString,
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nsWindowMediator& inMediator);
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virtual ~nsASAppWindowEarlyToLateEnumerator();
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protected:
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virtual nsWindowInfo* FindNext() override;
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};
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class nsASAppWindowFrontToBackEnumerator : public nsASAppWindowEnumerator {
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public:
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nsASAppWindowFrontToBackEnumerator(const char16_t* aTypeString,
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nsWindowMediator& inMediator);
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virtual ~nsASAppWindowFrontToBackEnumerator();
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protected:
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virtual nsWindowInfo* FindNext() override;
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};
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class nsASAppWindowBackToFrontEnumerator : public nsASAppWindowEnumerator {
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public:
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nsASAppWindowBackToFrontEnumerator(const char16_t* aTypeString,
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nsWindowMediator& inMediator);
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virtual ~nsASAppWindowBackToFrontEnumerator();
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protected:
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virtual nsWindowInfo* FindNext() override;
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};
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#endif
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