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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 nsNativeThemeWin_h
#define nsNativeThemeWin_h
#include <windows.h>
#include "mozilla/Maybe.h"
#include "mozilla/TimeStamp.h"
#include "Theme.h"
#include "nsUXThemeConstants.h"
#include "nsUXThemeData.h"
namespace mozilla::widget {
class nsNativeThemeWin : public Theme {
protected:
virtual ~nsNativeThemeWin();
public:
// Whether we draw a non-native widget.
//
// We always draw scrollbars as non-native so that all of Firefox has
// consistent scrollbar styles both in chrome and content (plus, the
// non-native scrollbars support scrollbar-width, auto-darkening...).
//
// We draw other widgets as non-native when their color-scheme is dark. In
// that case (`BecauseColorMismatch`) we don't call into the non-native theme
// for sizing information (GetWidgetPadding/Border and GetMinimumWidgetSize),
// to avoid subtle sizing changes. The non-native theme can basically draw at
// any size, so we prefer to have consistent sizing information.
enum class NonNative { No, Always, BecauseColorMismatch };
static bool IsWidgetAlwaysNonNative(nsIFrame*, StyleAppearance);
NonNative IsWidgetNonNative(nsIFrame*, StyleAppearance);
// The nsITheme interface.
NS_IMETHOD DrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame,
StyleAppearance aAppearance,
const nsRect& aRect, const nsRect& aDirtyRect,
DrawOverflow) override;
bool CreateWebRenderCommandsForWidget(wr::DisplayListBuilder&,
wr::IpcResourceUpdateQueue&,
const layers::StackingContextHelper&,
layers::RenderRootStateManager*,
nsIFrame*, StyleAppearance,
const nsRect&) override;
[[nodiscard]] LayoutDeviceIntMargin GetWidgetBorder(
nsDeviceContext* aContext, nsIFrame* aFrame,
StyleAppearance aAppearance) override;
bool GetWidgetPadding(nsDeviceContext* aContext, nsIFrame* aFrame,
StyleAppearance aAppearance,
LayoutDeviceIntMargin* aResult) override;
virtual bool GetWidgetOverflow(nsDeviceContext* aContext, nsIFrame* aFrame,
StyleAppearance aAppearance,
nsRect* aOverflowRect) override;
LayoutDeviceIntSize GetMinimumWidgetSize(
nsPresContext* aPresContext, nsIFrame* aFrame,
StyleAppearance aAppearance) override;
virtual Transparency GetWidgetTransparency(
nsIFrame* aFrame, StyleAppearance aAppearance) override;
NS_IMETHOD WidgetStateChanged(nsIFrame* aFrame, StyleAppearance aAppearance,
nsAtom* aAttribute, bool* aShouldRepaint,
const nsAttrValue* aOldValue) override;
NS_IMETHOD ThemeChanged() override;
bool ThemeSupportsWidget(nsPresContext* aPresContext, nsIFrame* aFrame,
StyleAppearance aAppearance) override;
bool ThemeDrawsFocusForWidget(nsIFrame*, StyleAppearance) override;
bool ThemeWantsButtonInnerFocusRing() override { return true; }
bool ThemeNeedsComboboxDropmarker() override;
nsNativeThemeWin();
protected:
Maybe<nsUXThemeClass> GetThemeClass(StyleAppearance aAppearance);
HANDLE GetTheme(StyleAppearance aAppearance);
nsresult GetThemePartAndState(nsIFrame* aFrame, StyleAppearance aAppearance,
int32_t& aPart, int32_t& aState);
nsresult ClassicGetThemePartAndState(nsIFrame* aFrame,
StyleAppearance aAppearance,
int32_t& aPart, int32_t& aState,
bool& aFocused);
nsresult ClassicDrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame,
StyleAppearance aAppearance,
const nsRect& aRect,
const nsRect& aClipRect);
[[nodiscard]] LayoutDeviceIntMargin ClassicGetWidgetBorder(
nsDeviceContext* aContext, nsIFrame* aFrame, StyleAppearance aAppearance);
bool ClassicGetWidgetPadding(nsDeviceContext* aContext, nsIFrame* aFrame,
StyleAppearance aAppearance,
LayoutDeviceIntMargin* aResult);
LayoutDeviceIntSize ClassicGetMinimumWidgetSize(nsIFrame* aFrame,
StyleAppearance aAppearance);
bool ClassicThemeSupportsWidget(nsIFrame* aFrame,
StyleAppearance aAppearance);
void DrawCheckedRect(HDC hdc, const RECT& rc, int32_t fore, int32_t back,
HBRUSH defaultBack);
uint32_t GetWidgetNativeDrawingFlags(StyleAppearance aAppearance);
int32_t StandardGetState(nsIFrame* aFrame, StyleAppearance aAppearance,
bool wantFocused);
bool IsMenuActive(nsIFrame* aFrame, StyleAppearance aAppearance);
RECT CalculateProgressOverlayRect(nsIFrame* aFrame, RECT* aWidgetRect,
bool aIsVertical, bool aIsIndeterminate,
bool aIsClassic);
void DrawThemedProgressMeter(nsIFrame* aFrame, StyleAppearance aAppearance,
HANDLE aTheme, HDC aHdc, int aPart, int aState,
RECT* aWidgetRect, RECT* aClipRect);
[[nodiscard]] LayoutDeviceIntMargin GetCachedWidgetBorder(
HANDLE aTheme, nsUXThemeClass aThemeClass, StyleAppearance aAppearance,
int32_t aPart, int32_t aState);
nsresult GetCachedMinimumWidgetSize(nsIFrame* aFrame, HANDLE aTheme,
nsUXThemeClass aThemeClass,
StyleAppearance aAppearance,
int32_t aPart, int32_t aState,
THEMESIZE aSizeReq,
LayoutDeviceIntSize* aResult);
SIZE GetCachedGutterSize(HANDLE theme);
private:
TimeStamp mProgressDeterminateTimeStamp;
TimeStamp mProgressIndeterminateTimeStamp;
// eUXNumClasses * THEME_PART_DISTINCT_VALUE_COUNT is about 800 at the time of
// writing this, and nsIntMargin is 16 bytes wide, which makes this cache (1/8
// + 16) * 800 bytes, or about ~12KB. We could probably reduce this cache to
// 3KB by caching on the aAppearance value instead, but there would be some
// uncacheable values, since we derive some theme parts from other arguments.
uint8_t
mBorderCacheValid[(eUXNumClasses * THEME_PART_DISTINCT_VALUE_COUNT + 7) /
8];
LayoutDeviceIntMargin
mBorderCache[eUXNumClasses * THEME_PART_DISTINCT_VALUE_COUNT];
// See the above not for mBorderCache and friends. However
// LayoutDeviceIntSize is half the size of nsIntMargin, making the
// cache roughly half as large. In total the caches should come to about 18KB.
uint8_t mMinimumWidgetSizeCacheValid
[(eUXNumClasses * THEME_PART_DISTINCT_VALUE_COUNT + 7) / 8];
LayoutDeviceIntSize
mMinimumWidgetSizeCache[eUXNumClasses * THEME_PART_DISTINCT_VALUE_COUNT];
bool mGutterSizeCacheValid;
SIZE mGutterSizeCache;
};
} // namespace mozilla::widget
#endif
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