/* -*- 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. #include "nsAlgorithm.h" #include "nsIAtom.h" #include "nsCOMPtr.h" #include "nsString.h" #include "nsMargin.h" #include "nsGkAtoms.h" #include "nsTArray.h" #include "nsITimer.h" #include "nsIContent.h" class nsIFrame; class nsIPresShell; class nsPresContext; namespace mozilla { class EventStates; } // namespace mozilla class nsNativeTheme : public nsITimerCallback { protected: virtual ~nsNativeTheme() {} NS_DECL_ISUPPORTS NS_DECL_NSITIMERCALLBACK enum ScrollbarButtonType { eScrollbarButton_UpTop = 0, eScrollbarButton_Down = 1 << 0, eScrollbarButton_Bottom = 1 << 1 }; enum TreeSortDirection { eTreeSortDirection_Descending, eTreeSortDirection_Natural, eTreeSortDirection_Ascending }; nsNativeTheme(); // Returns the content state (hover, focus, etc), see EventStateManager.h mozilla::EventStates GetContentState(nsIFrame* aFrame, uint8_t aWidgetType); // 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, uint8_t aWidgetType); // Accessors to widget-specific state information bool IsDisabled(nsIFrame* aFrame, mozilla::EventStates aEventStates); // RTL chrome direction static bool IsFrameRTL(nsIFrame* aFrame); bool IsHTMLContent(nsIFrame *aFrame); // button: bool IsDefaultButton(nsIFrame* aFrame) { return CheckBooleanAttr(aFrame, nsGkAtoms::_default); } bool IsButtonTypeMenu(nsIFrame* aFrame); // checkbox: bool IsChecked(nsIFrame* aFrame) { return GetCheckedOrSelected(aFrame, false); } // radiobutton: bool IsSelected(nsIFrame* aFrame) { return GetCheckedOrSelected(aFrame, true); } bool IsFocused(nsIFrame* aFrame) { return CheckBooleanAttr(aFrame, nsGkAtoms::focused); } // scrollbar button: int32_t GetScrollbarButtonType(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 IsIndeterminateProgress(nsIFrame* aFrame, mozilla::EventStates aEventStates); 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); // True if it's not a menubar item or menulist item bool IsRegularMenuItem(nsIFrame *aFrame); bool IsMenuListEditable(nsIFrame *aFrame); nsIPresShell *GetPresShell(nsIFrame* aFrame); static bool CheckBooleanAttr(nsIFrame* aFrame, nsIAtom* aAtom); static int32_t CheckIntAttr(nsIFrame* aFrame, nsIAtom* aAtom, int32_t defaultValue); // Helpers for progressbar. static double GetProgressValue(nsIFrame* aFrame); static double GetProgressMaxValue(nsIFrame* aFrame); bool GetCheckedOrSelected(nsIFrame* aFrame, bool aCheckSelected); bool GetIndeterminate(nsIFrame* aFrame); bool QueueAnimatedContentForRefresh(nsIContent* aContent, uint32_t aMinimumFrameRate); nsIFrame* GetAdjacentSiblingFrameWithSameAppearance(nsIFrame* aFrame, bool aNextSibling); bool IsRangeHorizontal(nsIFrame* aFrame); // scrollbar bool IsDarkBackground(nsIFrame* aFrame); private: uint32_t mAnimatedContentTimeout; nsCOMPtr<nsITimer> mAnimatedContentTimer; AutoTArray<nsCOMPtr<nsIContent>, 20> mAnimatedContentList; };