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gecko-dev/xpfe/appshell/AppWindow.h
Emilio Cobos Álvarez 6ecd66ed03 Bug 1902315 - Remove other widget z-level fiction. r=win-reviewers,rkraesig,geckoview-reviewers,spohl,m_kato 
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
2024-06-19 07:47:36 +00:00

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/* -*- 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 mozilla_AppWindow_h__
#define mozilla_AppWindow_h__
// Local Includes
#include "nsChromeTreeOwner.h"
#include "nsContentTreeOwner.h"
// Helper classes
#include "nsCOMPtr.h"
#include "nsTArray.h"
#include "nsString.h"
#include "nsWeakReference.h"
#include "nsCOMArray.h"
#include "nsDocShell.h"
#include "nsRect.h"
#include "Units.h"
#include "mozilla/Maybe.h"
#include "mozilla/Mutex.h"
// Interfaces needed
#include "nsIBaseWindow.h"
#include "nsIDocShellTreeItem.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIAppWindow.h"
#include "nsIPrompt.h"
#include "nsIAuthPrompt.h"
#include "nsIXULBrowserWindow.h"
#include "nsIWidgetListener.h"
#include "nsIRemoteTab.h"
#include "nsIWebProgressListener.h"
#include "nsITimer.h"
#include "nsIXULStore.h"
class nsAtom;
class nsXULTooltipListener;
namespace mozilla {
class PresShell;
class AppWindowTimerCallback;
class L10nReadyPromiseHandler;
namespace dom {
class Element;
} // namespace dom
namespace widget {
struct InitData;
} // namespace widget
} // namespace mozilla
// AppWindow
#define NS_APPWINDOW_IMPL_CID \
{ /* 8eaec2f3-ed02-4be2-8e0f-342798477298 */ \
0x8eaec2f3, 0xed02, 0x4be2, { \
0x8e, 0x0f, 0x34, 0x27, 0x98, 0x47, 0x72, 0x98 \
} \
}
class nsContentShellInfo;
namespace mozilla {
class AppWindow final : public nsIBaseWindow,
public nsIInterfaceRequestor,
public nsIAppWindow,
public nsSupportsWeakReference,
public nsIWebProgressListener {
friend class ::nsChromeTreeOwner;
friend class ::nsContentTreeOwner;
public:
// The implementation of non-refcounted nsIWidgetListener, which would hold a
// strong reference on stack before calling AppWindow's
// MOZ_CAN_RUN_SCRIPT methods.
class WidgetListenerDelegate final : public nsIWidgetListener {
public:
explicit WidgetListenerDelegate(AppWindow* aAppWindow)
: mAppWindow(aAppWindow) {}
MOZ_CAN_RUN_SCRIPT_BOUNDARY
nsIAppWindow* GetAppWindow() override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
mozilla::PresShell* GetPresShell() override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
bool WindowMoved(nsIWidget* aWidget, int32_t x, int32_t y,
ByMoveToRect) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
bool WindowResized(nsIWidget* aWidget, int32_t aWidth,
int32_t aHeight) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
bool RequestWindowClose(nsIWidget* aWidget) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
void SizeModeChanged(nsSizeMode sizeMode) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
void MacFullscreenMenubarOverlapChanged(
mozilla::DesktopCoord aOverlapAmount) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
void OcclusionStateChanged(bool aIsFullyOccluded) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
void OSToolbarButtonPressed() override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
void WindowActivated() override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
void WindowDeactivated() override;
private:
// The lifetime of WidgetListenerDelegate is bound to AppWindow so
// we just use a raw pointer here.
AppWindow* mAppWindow;
};
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIINTERFACEREQUESTOR
NS_DECL_NSIAPPWINDOW
NS_DECL_NSIBASEWINDOW
NS_DECLARE_STATIC_IID_ACCESSOR(NS_APPWINDOW_IMPL_CID)
void LockUntilChromeLoad() { mLockedUntilChromeLoad = true; }
bool IsLocked() const { return mLockedUntilChromeLoad; }
void IgnoreXULSizeMode(bool aEnable) { mIgnoreXULSizeMode = aEnable; }
void WasRegistered() { mRegistered = true; }
using nsIBaseWindow::GetPositionAndSize;
using nsIBaseWindow::GetSize;
// AppWindow methods...
nsresult Initialize(nsIAppWindow* aParent, nsIAppWindow* aOpener,
int32_t aInitialWidth, int32_t aInitialHeight,
bool aIsHiddenWindow, widget::InitData& widgetInitData);
nsDocShell* GetDocShell() { return mDocShell; }
nsresult Toolbar();
// nsIWebProgressListener
NS_DECL_NSIWEBPROGRESSLISTENER
// nsIWidgetListener methods for WidgetListenerDelegate.
nsIAppWindow* GetAppWindow() { return this; }
mozilla::PresShell* GetPresShell();
MOZ_CAN_RUN_SCRIPT
bool WindowMoved(nsIWidget* aWidget, int32_t aX, int32_t aY);
MOZ_CAN_RUN_SCRIPT
bool WindowResized(nsIWidget* aWidget, int32_t aWidth, int32_t aHeight);
MOZ_CAN_RUN_SCRIPT bool RequestWindowClose(nsIWidget* aWidget);
MOZ_CAN_RUN_SCRIPT void SizeModeChanged(nsSizeMode aSizeMode);
MOZ_CAN_RUN_SCRIPT void FullscreenWillChange(bool aInFullscreen);
MOZ_CAN_RUN_SCRIPT void FullscreenChanged(bool aInFullscreen);
MOZ_CAN_RUN_SCRIPT void MacFullscreenMenubarOverlapChanged(
mozilla::DesktopCoord aOverlapAmount);
MOZ_CAN_RUN_SCRIPT void OcclusionStateChanged(bool aIsFullyOccluded);
void RecomputeBrowsingContextVisibility();
MOZ_CAN_RUN_SCRIPT void OSToolbarButtonPressed();
MOZ_CAN_RUN_SCRIPT void WindowActivated();
MOZ_CAN_RUN_SCRIPT void WindowDeactivated();
explicit AppWindow(uint32_t aChromeFlags);
protected:
enum class PersistentAttribute : uint8_t {
Position,
Size,
Misc,
};
using PersistentAttributes = EnumSet<PersistentAttribute>;
static PersistentAttributes AllPersistentAttributes() {
return {PersistentAttribute::Position, PersistentAttribute::Size,
PersistentAttribute::Misc};
}
virtual ~AppWindow();
friend class mozilla::AppWindowTimerCallback;
MOZ_CAN_RUN_SCRIPT bool ExecuteCloseHandler();
void ConstrainToOpenerScreen(int32_t* aX, int32_t* aY);
void SetPersistenceTimer(uint32_t aDirtyFlags);
void FirePersistenceTimer();
NS_IMETHOD EnsureChromeTreeOwner();
NS_IMETHOD EnsureContentTreeOwner();
NS_IMETHOD EnsurePrimaryContentTreeOwner();
NS_IMETHOD EnsurePrompter();
NS_IMETHOD EnsureAuthPrompter();
NS_IMETHOD ForceRoundedDimensions();
NS_IMETHOD GetAvailScreenSize(int32_t* aAvailWidth, int32_t* aAvailHeight);
void FinishFullscreenChange(bool aInFullscreen);
void ApplyChromeFlags();
MOZ_CAN_RUN_SCRIPT_BOUNDARY void SizeShell();
void OnChromeLoaded();
void StaggerPosition(int32_t& aRequestedX, int32_t& aRequestedY,
int32_t aSpecWidth, int32_t aSpecHeight);
bool LoadPositionFromXUL(int32_t aSpecWidth, int32_t aSpecHeight);
bool LoadSizeFromXUL(int32_t& aSpecWidth, int32_t& aSpecHeight);
void SetSpecifiedSize(int32_t aSpecWidth, int32_t aSpecHeight);
bool UpdateWindowStateFromMiscXULAttributes();
void SyncAttributesToWidget();
void SavePersistentAttributes(PersistentAttributes);
void MaybeSavePersistentPositionAndSize(PersistentAttributes,
dom::Element& aRootElement,
const nsAString& aPersistString,
bool aShouldPersist);
void MaybeSavePersistentMiscAttributes(PersistentAttributes,
dom::Element& aRootElement,
const nsAString& aPersistString,
bool aShouldPersist);
void SavePersistentAttributes() {
SavePersistentAttributes(mPersistentAttributesDirty);
}
bool NeedsTooltipListener();
void AddTooltipSupport();
void RemoveTooltipSupport();
NS_IMETHOD GetWindowDOMWindow(mozIDOMWindowProxy** aDOMWindow);
dom::Element* GetWindowDOMElement() const;
// See nsIDocShellTreeOwner for docs on next two methods
nsresult ContentShellAdded(nsIDocShellTreeItem* aContentShell, bool aPrimary);
nsresult ContentShellRemoved(nsIDocShellTreeItem* aContentShell);
NS_IMETHOD GetPrimaryContentSize(int32_t* aWidth, int32_t* aHeight);
NS_IMETHOD SetPrimaryContentSize(int32_t aWidth, int32_t aHeight);
nsresult GetRootShellSize(int32_t* aWidth, int32_t* aHeight);
nsresult SetRootShellSize(int32_t aWidth, int32_t aHeight);
NS_IMETHOD SizeShellTo(nsIDocShellTreeItem* aShellItem, int32_t aCX,
int32_t aCY);
NS_IMETHOD ExitModalLoop(nsresult aStatus);
NS_IMETHOD CreateNewChromeWindow(int32_t aChromeFlags,
nsIAppWindow** _retval);
NS_IMETHOD CreateNewContentWindow(int32_t aChromeFlags,
nsIOpenWindowInfo* aOpenWindowInfo,
nsIAppWindow** _retval);
NS_IMETHOD GetHasPrimaryContent(bool* aResult);
void EnableParent(bool aEnable);
void PlaceWindowLayersBehind(uint32_t aLowLevel, uint32_t aHighLevel,
nsIAppWindow* aBehind);
void SetContentScrollbarVisibility(bool aVisible);
enum PersistentAttributeUpdate { Sync, Async };
void PersistentAttributesDirty(PersistentAttributes,
PersistentAttributeUpdate);
nsresult GetTabCount(uint32_t* aResult);
void LoadPersistentWindowState();
nsresult GetPersistentValue(const nsAtom* aAttr, nsAString& aValue);
nsresult SetPersistentValue(const nsAtom* aAttr, const nsAString& aValue);
// Saves window size and positioning values in order to display a very early
// skeleton UI. This has to happen before we can reasonably initialize the
// xulstore (i.e., before even loading libxul), so they have to use a special
// purpose store to do so.
nsresult MaybeSaveEarlyWindowPersistentValues(
const LayoutDeviceIntRect& aRect);
// Gets the uri spec and the window element ID for this window.
nsresult GetDocXulStoreKeys(nsString& aUriSpec, nsString& aWindowElementId);
// Enum for the current state of a fullscreen change.
//
// It is used to ensure that fullscreen change is issued after both
// the window state change and the window size change at best effort.
// This is needed because some platforms can't guarantee the order
// between such two events.
//
// It's changed in the following way:
// +---------------------------+--------------------------------------+
// | | |
// | v |
// | NotChanging |
// | + |
// | | FullscreenWillChange |
// | v |
// | +-----------+ WillChange +------------------+ |
// | | WindowResized FullscreenChanged | |
// | v v |
// | WidgetResized WidgetEnteredFullscreen |
// | + or WidgetExitedFullscreen |
// | | FullscreenChanged + |
// | v WindowResized or | |
// +--------+ delayed dispatch | |
// v |
// +-------------+
//
// The delayed dispatch serves as timeout, which is necessary because it's
// not even guaranteed that the widget will be resized at all.
enum class FullscreenChangeState : uint8_t {
// No current fullscreen change. Any previous change has finished.
NotChanging,
// Indicate there is going to be a fullscreen change.
WillChange,
// The widget has been resized since WillChange.
WidgetResized,
// The widget has entered fullscreen state since WillChange.
WidgetEnteredFullscreen,
// The widget has exited fullscreen state since WillChange.
WidgetExitedFullscreen,
};
nsChromeTreeOwner* mChromeTreeOwner;
nsContentTreeOwner* mContentTreeOwner;
nsContentTreeOwner* mPrimaryContentTreeOwner;
nsCOMPtr<nsIWidget> mWindow;
RefPtr<nsDocShell> mDocShell;
nsCOMPtr<nsPIDOMWindowOuter> mDOMWindow;
nsWeakPtr mParentWindow;
nsCOMPtr<nsIPrompt> mPrompter;
nsCOMPtr<nsIAuthPrompt> mAuthPrompter;
nsCOMPtr<nsIXULBrowserWindow> mXULBrowserWindow;
nsCOMPtr<nsIDocShellTreeItem> mPrimaryContentShell;
nsresult mModalStatus;
FullscreenChangeState mFullscreenChangeState;
bool mContinueModalLoop;
bool mDebuting; // being made visible right now
bool mChromeLoaded; // True when chrome has loaded
bool mSizingShellFromXUL; // true when in SizeShell()
bool mShowAfterLoad;
bool mIntrinsicallySized;
bool mCenterAfterLoad;
bool mIsHiddenWindow;
bool mLockedUntilChromeLoad;
bool mIgnoreXULSize;
bool mIgnoreXULPosition;
bool mChromeFlagsFrozen;
bool mIgnoreXULSizeMode;
// mDestroying is used to prevent reentry into into Destroy(), which can
// otherwise happen due to script running as we tear down various things.
bool mDestroying;
bool mRegistered;
// Indicator for whether the client size, instead of the window size, should
// be maintained in case of a change in their relation.
bool mDominantClientSize;
PersistentAttributes mPersistentAttributesDirty;
PersistentAttributes mPersistentAttributesMask;
uint32_t mChromeFlags;
nsCOMPtr<nsIOpenWindowInfo> mInitialOpenWindowInfo;
nsString mTitle;
// The screen rect of the opener.
mozilla::DesktopIntRect mOpenerScreenRect;
nsCOMPtr<nsIRemoteTab> mPrimaryBrowserParent;
nsCOMPtr<nsITimer> mSPTimer;
WidgetListenerDelegate mWidgetListenerDelegate;
private:
MOZ_CAN_RUN_SCRIPT void IntrinsicallySizeShell(const CSSIntSize& aWindowDiff,
int32_t& aSpecWidth,
int32_t& aSpecHeight);
// GetPrimaryBrowserParentSize is called from xpidl methods and we don't have
// a good way to annotate those with MOZ_CAN_RUN_SCRIPT yet. It takes no
// refcounted args other than "this", and the "this" uses seem ok.
MOZ_CAN_RUN_SCRIPT_BOUNDARY nsresult
GetPrimaryRemoteTabSize(int32_t* aWidth, int32_t* aHeight);
nsresult GetPrimaryContentShellSize(int32_t* aWidth, int32_t* aHeight);
nsresult SetPrimaryRemoteTabSize(int32_t aWidth, int32_t aHeight);
void SizeShellToWithLimit(int32_t aDesiredWidth, int32_t aDesiredHeight,
int32_t shellItemWidth, int32_t shellItemHeight);
nsresult MoveResize(const Maybe<LayoutDeviceIntPoint>& aPosition,
const Maybe<LayoutDeviceIntSize>& aSize, bool aRepaint);
nsresult MoveResize(const Maybe<DesktopPoint>& aPosition,
const Maybe<DesktopSize>& aSize, bool aRepaint);
nsCOMPtr<nsIXULStore> mLocalStore;
bool mIsWidgetInFullscreen = false;
};
NS_DEFINE_STATIC_IID_ACCESSOR(AppWindow, NS_APPWINDOW_IMPL_CID)
} // namespace mozilla
#endif /* mozilla_AppWindow_h__ */
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