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Diffstat (limited to '')
-rw-r--r-- | widget/nsNativeTheme.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/widget/nsNativeTheme.h b/widget/nsNativeTheme.h new file mode 100644 index 0000000000..28a8c0cc3f --- /dev/null +++ b/widget/nsNativeTheme.h @@ -0,0 +1,170 @@ +/* -*- 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/. */ + +// This defines a common base class for nsITheme implementations, to reduce +// code duplication. + +#ifndef _NSNATIVETHEME_H_ +#define _NSNATIVETHEME_H_ + +#include "nsAlgorithm.h" +#include "nsAtom.h" +#include "nsColor.h" +#include "nsCOMPtr.h" +#include "nsString.h" +#include "nsMargin.h" +#include "nsGkAtoms.h" +#include "nsTArray.h" +#include "nsINamed.h" +#include "nsITimer.h" +#include "nsIContent.h" +#include "mozilla/dom/RustTypes.h" + +class nsIFrame; +class nsPresContext; + +namespace mozilla { +class ComputedStyle; +enum class StyleAppearance : uint8_t; +} // namespace mozilla + +class nsNativeTheme : public nsITimerCallback, public nsINamed { + protected: + virtual ~nsNativeTheme() = default; + + NS_DECL_ISUPPORTS + NS_DECL_NSITIMERCALLBACK + NS_DECL_NSINAMED + + nsNativeTheme(); + + public: + enum ScrollbarButtonType { + eScrollbarButton_UpTop = 0, + eScrollbarButton_Down = 1 << 0, + eScrollbarButton_Bottom = 1 << 1 + }; + + enum TreeSortDirection { + eTreeSortDirection_Descending, + eTreeSortDirection_Natural, + eTreeSortDirection_Ascending + }; + // Returns the content state (hover, focus, etc), see EventStateManager.h + static mozilla::dom::ElementState GetContentState( + nsIFrame* aFrame, mozilla::StyleAppearance aAppearance); + + // Returns whether the widget is already styled by content + // Normally called from ThemeSupportsWidget to turn off native theming + // for elements that are already styled. + bool IsWidgetStyled(nsPresContext* aPresContext, nsIFrame* aFrame, + mozilla::StyleAppearance aAppearance); + + // RTL chrome direction + static bool IsFrameRTL(nsIFrame* aFrame); + + static bool IsHTMLContent(nsIFrame* aFrame); + + // button: + bool IsDefaultButton(nsIFrame* aFrame) { + return CheckBooleanAttr(aFrame, nsGkAtoms::_default); + } + + bool IsButtonTypeMenu(nsIFrame* aFrame); + + // tab: + bool IsSelectedTab(nsIFrame* aFrame) { + return CheckBooleanAttr(aFrame, nsGkAtoms::visuallyselected); + } + + bool IsNextToSelectedTab(nsIFrame* aFrame, int32_t aOffset); + + bool IsBeforeSelectedTab(nsIFrame* aFrame) { + return IsNextToSelectedTab(aFrame, -1); + } + + bool IsAfterSelectedTab(nsIFrame* aFrame) { + return IsNextToSelectedTab(aFrame, 1); + } + + bool IsLeftToSelectedTab(nsIFrame* aFrame) { + return IsFrameRTL(aFrame) ? IsAfterSelectedTab(aFrame) + : IsBeforeSelectedTab(aFrame); + } + + bool IsRightToSelectedTab(nsIFrame* aFrame) { + return IsFrameRTL(aFrame) ? IsBeforeSelectedTab(aFrame) + : IsAfterSelectedTab(aFrame); + } + + // button / toolbarbutton: + bool IsCheckedButton(nsIFrame* aFrame) { + return CheckBooleanAttr(aFrame, nsGkAtoms::checked); + } + + bool IsSelectedButton(nsIFrame* aFrame) { + return CheckBooleanAttr(aFrame, nsGkAtoms::checked) || + CheckBooleanAttr(aFrame, nsGkAtoms::selected); + } + + bool IsOpenButton(nsIFrame* aFrame) { + return CheckBooleanAttr(aFrame, nsGkAtoms::open); + } + + bool IsPressedButton(nsIFrame* aFrame); + + // treeheadercell: + TreeSortDirection GetTreeSortDirection(nsIFrame* aFrame); + bool IsLastTreeHeaderCell(nsIFrame* aFrame); + + // tab: + bool IsBottomTab(nsIFrame* aFrame); + bool IsFirstTab(nsIFrame* aFrame); + + bool IsHorizontal(nsIFrame* aFrame); + + // progressbar: + bool IsVerticalProgress(nsIFrame* aFrame); + + // meter: + bool IsVerticalMeter(nsIFrame* aFrame); + + // textfield: + bool IsReadOnly(nsIFrame* aFrame) { + return CheckBooleanAttr(aFrame, nsGkAtoms::readonly); + } + + // menupopup: + bool IsSubmenu(nsIFrame* aFrame, bool* aLeftOfParent); + + static bool CheckBooleanAttr(nsIFrame* aFrame, nsAtom* aAtom); + static int32_t CheckIntAttr(nsIFrame* aFrame, nsAtom* aAtom, + int32_t defaultValue); + + // Helpers for progressbar. + static double GetProgressValue(nsIFrame* aFrame); + static double GetProgressMaxValue(nsIFrame* aFrame); + + bool QueueAnimatedContentForRefresh(nsIContent* aContent, + uint32_t aMinimumFrameRate); + + nsIFrame* GetAdjacentSiblingFrameWithSameAppearance(nsIFrame* aFrame, + bool aNextSibling); + + bool IsRangeHorizontal(nsIFrame* aFrame); + + static bool IsDarkBackgroundForScrollbar(nsIFrame*); + static bool IsDarkBackground(nsIFrame*); + + static bool IsWidgetScrollbarPart(mozilla::StyleAppearance); + static bool IsWidgetAlwaysNonNative(nsIFrame*, mozilla::StyleAppearance); + + private: + uint32_t mAnimatedContentTimeout; + nsCOMPtr<nsITimer> mAnimatedContentTimer; + AutoTArray<nsCOMPtr<nsIContent>, 20> mAnimatedContentList; +}; + +#endif // _NSNATIVETHEME_H_ |