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Diffstat (limited to 'widget/windows/nsNativeThemeWin.cpp')
| -rw-r--r-- | widget/windows/nsNativeThemeWin.cpp | 3398 |
1 files changed, 3398 insertions, 0 deletions
diff --git a/widget/windows/nsNativeThemeWin.cpp b/widget/windows/nsNativeThemeWin.cpp new file mode 100644 index 0000000000..7b54e92bb4 --- /dev/null +++ b/widget/windows/nsNativeThemeWin.cpp @@ -0,0 +1,3398 @@ +/* -*- Mode: C++; tab-width: 40; 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/. */ + +#include "nsNativeThemeWin.h" + +#include <algorithm> +#include <malloc.h> + +#include "gfxContext.h" +#include "gfxPlatform.h" +#include "gfxWindowsNativeDrawing.h" +#include "gfxWindowsPlatform.h" +#include "gfxWindowsSurface.h" +#include "mozilla/ClearOnShutdown.h" +#include "mozilla/gfx/Types.h" // for Color::FromABGR +#include "mozilla/Logging.h" +#include "mozilla/RelativeLuminanceUtils.h" +#include "mozilla/StaticPrefs_layout.h" +#include "mozilla/StaticPrefs_widget.h" +#include "mozilla/WindowsVersion.h" +#include "mozilla/dom/XULButtonElement.h" +#include "nsColor.h" +#include "nsComboboxControlFrame.h" +#include "nsDeviceContext.h" +#include "nsGkAtoms.h" +#include "nsIContent.h" +#include "nsIContentInlines.h" +#include "nsIFrame.h" +#include "nsLayoutUtils.h" +#include "nsLookAndFeel.h" +#include "nsNameSpaceManager.h" +#include "Theme.h" +#include "nsPresContext.h" +#include "nsRect.h" +#include "nsSize.h" +#include "nsStyleConsts.h" +#include "nsTransform2D.h" +#include "nsWindow.h" +#include "prinrval.h" +#include "WinUtils.h" + +using namespace mozilla; +using namespace mozilla::gfx; +using namespace mozilla::widget; + +using ElementState = dom::ElementState; + +extern mozilla::LazyLogModule gWindowsLog; + +namespace mozilla::widget { + +nsNativeThemeWin::nsNativeThemeWin() + : Theme(ScrollbarStyle()), + mProgressDeterminateTimeStamp(TimeStamp::Now()), + mProgressIndeterminateTimeStamp(TimeStamp::Now()), + mBorderCacheValid(), + mMinimumWidgetSizeCacheValid(), + mGutterSizeCacheValid(false) { + // If there is a relevant change in forms.css for windows platform, + // static widget style variables (e.g. sButtonBorderSize) should be + // reinitialized here. +} + +nsNativeThemeWin::~nsNativeThemeWin() { nsUXThemeData::Invalidate(); } + +auto nsNativeThemeWin::IsWidgetNonNative(nsIFrame* aFrame, + StyleAppearance aAppearance) + -> NonNative { + if (IsWidgetScrollbarPart(aAppearance) || + aAppearance == StyleAppearance::FocusOutline) { + return NonNative::Always; + } + + // We only know how to draw light widgets, so we defer to the non-native + // theme when appropriate. + if (Theme::ThemeSupportsWidget(aFrame->PresContext(), aFrame, aAppearance) && + LookAndFeel::ColorSchemeForFrame(aFrame) == + LookAndFeel::ColorScheme::Dark) { + return NonNative::BecauseColorMismatch; + } + return NonNative::No; +} + +static int32_t GetTopLevelWindowActiveState(nsIFrame* aFrame) { + // Used by window frame and button box rendering. We can end up in here in + // the content process when rendering one of these moz styles freely in a + // page. Bail in this case, there is no applicable window focus state. + if (!XRE_IsParentProcess()) { + return mozilla::widget::themeconst::FS_INACTIVE; + } + // All headless windows are considered active so they are painted. + if (gfxPlatform::IsHeadless()) { + return mozilla::widget::themeconst::FS_ACTIVE; + } + // Get the widget. nsIFrame's GetNearestWidget walks up the view chain + // until it finds a real window. + nsIWidget* widget = aFrame->GetNearestWidget(); + nsWindow* window = static_cast<nsWindow*>(widget); + if (!window) return mozilla::widget::themeconst::FS_INACTIVE; + if (widget && !window->IsTopLevelWidget() && + !(window = window->GetParentWindowBase(false))) + return mozilla::widget::themeconst::FS_INACTIVE; + + if (window->GetWindowHandle() == ::GetActiveWindow()) + return mozilla::widget::themeconst::FS_ACTIVE; + return mozilla::widget::themeconst::FS_INACTIVE; +} + +static int32_t GetWindowFrameButtonState(nsIFrame* aFrame, + ElementState elementState) { + if (GetTopLevelWindowActiveState(aFrame) == + mozilla::widget::themeconst::FS_INACTIVE) { + if (elementState.HasState(ElementState::HOVER)) + return mozilla::widget::themeconst::BS_HOT; + return mozilla::widget::themeconst::BS_INACTIVE; + } + + if (elementState.HasState(ElementState::HOVER)) { + if (elementState.HasState(ElementState::ACTIVE)) + return mozilla::widget::themeconst::BS_PUSHED; + return mozilla::widget::themeconst::BS_HOT; + } + return mozilla::widget::themeconst::BS_NORMAL; +} + +static int32_t GetClassicWindowFrameButtonState(ElementState elementState) { + if (elementState.HasState(ElementState::ACTIVE) && + elementState.HasState(ElementState::HOVER)) + return DFCS_BUTTONPUSH | DFCS_PUSHED; + return DFCS_BUTTONPUSH; +} + +static bool IsTopLevelMenu(nsIFrame* aFrame) { + auto* menu = dom::XULButtonElement::FromNodeOrNull(aFrame->GetContent()); + return menu && menu->IsOnMenuBar(); +} + +static MARGINS GetCheckboxMargins(HANDLE theme, HDC hdc) { + MARGINS checkboxContent = {0}; + GetThemeMargins(theme, hdc, MENU_POPUPCHECK, MCB_NORMAL, TMT_CONTENTMARGINS, + nullptr, &checkboxContent); + return checkboxContent; +} + +static SIZE GetCheckboxBGSize(HANDLE theme, HDC hdc) { + SIZE checkboxSize; + GetThemePartSize(theme, hdc, MENU_POPUPCHECK, MC_CHECKMARKNORMAL, nullptr, + TS_TRUE, &checkboxSize); + + MARGINS checkboxMargins = GetCheckboxMargins(theme, hdc); + + int leftMargin = checkboxMargins.cxLeftWidth; + int rightMargin = checkboxMargins.cxRightWidth; + int topMargin = checkboxMargins.cyTopHeight; + int bottomMargin = checkboxMargins.cyBottomHeight; + + int width = leftMargin + checkboxSize.cx + rightMargin; + int height = topMargin + checkboxSize.cy + bottomMargin; + SIZE ret; + ret.cx = width; + ret.cy = height; + return ret; +} + +static SIZE GetCheckboxBGBounds(HANDLE theme, HDC hdc) { + MARGINS checkboxBGSizing = {0}; + MARGINS checkboxBGContent = {0}; + GetThemeMargins(theme, hdc, MENU_POPUPCHECKBACKGROUND, MCB_NORMAL, + TMT_SIZINGMARGINS, nullptr, &checkboxBGSizing); + GetThemeMargins(theme, hdc, MENU_POPUPCHECKBACKGROUND, MCB_NORMAL, + TMT_CONTENTMARGINS, nullptr, &checkboxBGContent); + +#define posdx(d) ((d) > 0 ? d : 0) + + int dx = + posdx(checkboxBGContent.cxRightWidth - checkboxBGSizing.cxRightWidth) + + posdx(checkboxBGContent.cxLeftWidth - checkboxBGSizing.cxLeftWidth); + int dy = + posdx(checkboxBGContent.cyTopHeight - checkboxBGSizing.cyTopHeight) + + posdx(checkboxBGContent.cyBottomHeight - checkboxBGSizing.cyBottomHeight); + +#undef posdx + + SIZE ret(GetCheckboxBGSize(theme, hdc)); + ret.cx += dx; + ret.cy += dy; + return ret; +} + +static SIZE GetGutterSize(HANDLE theme, HDC hdc) { + SIZE gutterSize; + GetThemePartSize(theme, hdc, MENU_POPUPGUTTER, 0, nullptr, TS_TRUE, + &gutterSize); + + SIZE checkboxBGSize(GetCheckboxBGBounds(theme, hdc)); + + SIZE itemSize; + GetThemePartSize(theme, hdc, MENU_POPUPITEM, MPI_NORMAL, nullptr, TS_TRUE, + &itemSize); + + // Figure out how big the menuitem's icon will be (if present) at current DPI + // Needs the system scale for consistency with Windows Theme API. + double scaleFactor = WinUtils::SystemScaleFactor(); + int iconDevicePixels = NSToIntRound(16 * scaleFactor); + SIZE iconSize = {iconDevicePixels, iconDevicePixels}; + // Not really sure what margins should be used here, but this seems to work in + // practice... + MARGINS margins = {0}; + GetThemeMargins(theme, hdc, MENU_POPUPCHECKBACKGROUND, MCB_NORMAL, + TMT_CONTENTMARGINS, nullptr, &margins); + iconSize.cx += margins.cxLeftWidth + margins.cxRightWidth; + iconSize.cy += margins.cyTopHeight + margins.cyBottomHeight; + + int width = std::max( + itemSize.cx, std::max(iconSize.cx, checkboxBGSize.cx) + gutterSize.cx); + int height = std::max(itemSize.cy, std::max(iconSize.cy, checkboxBGSize.cy)); + + SIZE ret; + ret.cx = width; + ret.cy = height; + return ret; +} + +SIZE nsNativeThemeWin::GetCachedGutterSize(HANDLE theme) { + if (mGutterSizeCacheValid) { + return mGutterSizeCache; + } + + mGutterSizeCache = GetGutterSize(theme, nullptr); + mGutterSizeCacheValid = true; + + return mGutterSizeCache; +} + +/* DrawThemeBGRTLAware - render a theme part based on rtl state. + * Some widgets are not direction-neutral and need to be drawn reversed for + * RTL. Windows provides a way to do this with SetLayout, but this reverses + * the entire drawing area of a given device context, which means that its + * use will also affect the positioning of the widget. There are two ways + * to work around this: + * + * Option 1: Alter the position of the rect that we send so that we cancel + * out the positioning effects of SetLayout + * Option 2: Create a memory DC with the widgetRect's dimensions, draw onto + * that, and then transfer the results back to our DC + * + * This function tries to implement option 1, under the assumption that the + * correct way to reverse the effects of SetLayout is to translate the rect + * such that the offset from the DC bitmap's left edge to the old rect's + * left edge is equal to the offset from the DC bitmap's right edge to the + * new rect's right edge. In other words, + * (oldRect.left + vpOrg.x) == ((dcBMP.width - vpOrg.x) - newRect.right) + */ +static HRESULT DrawThemeBGRTLAware(HANDLE aTheme, HDC aHdc, int aPart, + int aState, const RECT* aWidgetRect, + const RECT* aClipRect, bool aIsRtl) { + NS_ASSERTION(aTheme, "Bad theme handle."); + NS_ASSERTION(aHdc, "Bad hdc."); + NS_ASSERTION(aWidgetRect, "Bad rect."); + NS_ASSERTION(aClipRect, "Bad clip rect."); + + if (!aIsRtl) { + return DrawThemeBackground(aTheme, aHdc, aPart, aState, aWidgetRect, + aClipRect); + } + + HGDIOBJ hObj = GetCurrentObject(aHdc, OBJ_BITMAP); + BITMAP bitmap; + POINT vpOrg; + + if (hObj && GetObject(hObj, sizeof(bitmap), &bitmap) && + GetViewportOrgEx(aHdc, &vpOrg)) { + RECT newWRect(*aWidgetRect); + newWRect.left = bitmap.bmWidth - (aWidgetRect->right + 2 * vpOrg.x); + newWRect.right = bitmap.bmWidth - (aWidgetRect->left + 2 * vpOrg.x); + + RECT newCRect; + RECT* newCRectPtr = nullptr; + + if (aClipRect) { + newCRect.top = aClipRect->top; + newCRect.bottom = aClipRect->bottom; + newCRect.left = bitmap.bmWidth - (aClipRect->right + 2 * vpOrg.x); + newCRect.right = bitmap.bmWidth - (aClipRect->left + 2 * vpOrg.x); + newCRectPtr = &newCRect; + } + + SetLayout(aHdc, LAYOUT_RTL); + HRESULT hr = DrawThemeBackground(aTheme, aHdc, aPart, aState, &newWRect, + newCRectPtr); + SetLayout(aHdc, 0); + if (SUCCEEDED(hr)) { + return hr; + } + } + return DrawThemeBackground(aTheme, aHdc, aPart, aState, aWidgetRect, + aClipRect); +} + +/* + * Caption button padding data - 'hot' button padding. + * These areas are considered hot, in that they activate + * a button when hovered or clicked. The button graphic + * is drawn inside the padding border. Unrecognized themes + * are treated as their recognized counterparts for now. + * left top right bottom + * classic min 1 2 0 1 + * classic max 0 2 1 1 + * classic close 1 2 2 1 + * + * aero basic min 1 2 0 2 + * aero basic max 0 2 1 2 + * aero basic close 1 2 1 2 + * + * 'cold' button padding - generic button padding, should + * be handled in css. + * left top right bottom + * classic min 0 0 0 0 + * classic max 0 0 0 0 + * classic close 0 0 0 0 + * + * aero basic min 0 0 1 0 + * aero basic max 1 0 0 0 + * aero basic close 0 0 0 0 + */ + +enum CaptionDesktopTheme { + CAPTION_CLASSIC = 0, + CAPTION_BASIC, +}; + +enum CaptionButton { + CAPTIONBUTTON_MINIMIZE = 0, + CAPTIONBUTTON_RESTORE, + CAPTIONBUTTON_CLOSE, +}; + +struct CaptionButtonPadding { + RECT hotPadding[3]; +}; + +// RECT: left, top, right, bottom +static CaptionButtonPadding buttonData[3] = { + {{{1, 2, 0, 1}, {0, 2, 1, 1}, {1, 2, 2, 1}}}, + {{{1, 2, 0, 2}, {0, 2, 1, 2}, {1, 2, 2, 2}}}, + {{{0, 2, 0, 2}, {0, 2, 1, 2}, {1, 2, 2, 2}}}}; + +// Adds "hot" caption button padding to minimum widget size. +static void AddPaddingRect(LayoutDeviceIntSize* aSize, CaptionButton button) { + if (!aSize) return; + RECT offset; + if (!nsUXThemeData::IsAppThemed()) + offset = buttonData[CAPTION_CLASSIC].hotPadding[button]; + else + offset = buttonData[CAPTION_BASIC].hotPadding[button]; + aSize->width += offset.left + offset.right; + aSize->height += offset.top + offset.bottom; +} + +// If we've added padding to the minimum widget size, offset +// the area we draw into to compensate. +static void OffsetBackgroundRect(RECT& rect, CaptionButton button) { + RECT offset; + if (!nsUXThemeData::IsAppThemed()) + offset = buttonData[CAPTION_CLASSIC].hotPadding[button]; + else + offset = buttonData[CAPTION_BASIC].hotPadding[button]; + rect.left += offset.left; + rect.top += offset.top; + rect.right -= offset.right; + rect.bottom -= offset.bottom; +} + +/* + * Notes on progress track and meter part constants: + * xp and up: + * PP_BAR(_VERT) - base progress track + * PP_TRANSPARENTBAR(_VERT) - transparent progress track. this only works if + * the underlying surface supports alpha. otherwise + * theme lib's DrawThemeBackground falls back on + * opaque PP_BAR. we currently don't use this. + * PP_CHUNK(_VERT) - xp progress meter. this does not draw an xp style + * progress w/chunks, it draws fill using the chunk + * graphic. + * vista and up: + * PP_FILL(_VERT) - progress meter. these have four states/colors. + * PP_PULSEOVERLAY(_VERT) - white reflection - an overlay, not sure what this + * is used for. + * PP_MOVEOVERLAY(_VERT) - green pulse - the pulse effect overlay on + * determined progress bars. we also use this for + * indeterminate chunk. + * + * Notes on state constants: + * PBBS_NORMAL - green progress + * PBBVS_PARTIAL/PBFVS_ERROR - red error progress + * PBFS_PAUSED - yellow paused progress + * + * There is no common controls style indeterminate part on vista and up. + */ + +/* + * Progress bar related constants. These values are found by experimenting and + * comparing against native widgets used by the system. They are very unlikely + * exact but try to not be too wrong. + */ +// The amount of time we animate progress meters parts across the frame. +static const double kProgressDeterminateTimeSpan = 3.0; +static const double kProgressIndeterminateTimeSpan = 5.0; +// The width of the overlay used to animate the horizontal progress bar (Vista +// and later). +static const int32_t kProgressHorizontalOverlaySize = 120; +// The height of the overlay used to animate the vertical progress bar (Vista +// and later). +static const int32_t kProgressVerticalOverlaySize = 45; +// The height of the overlay used for the vertical indeterminate progress bar +// (Vista and later). +static const int32_t kProgressVerticalIndeterminateOverlaySize = 60; +// The width of the overlay used to animate the indeterminate progress bar +// (Windows Classic). +static const int32_t kProgressClassicOverlaySize = 40; + +/* + * GetProgressOverlayStyle - returns the proper overlay part for themed + * progress bars based on os and orientation. + */ +static int32_t GetProgressOverlayStyle(bool aIsVertical) { + return aIsVertical ? PP_MOVEOVERLAYVERT : PP_MOVEOVERLAY; +} + +/* + * GetProgressOverlaySize - returns the minimum width or height for themed + * progress bar overlays. This includes the width of indeterminate chunks + * and vista pulse overlays. + */ +static int32_t GetProgressOverlaySize(bool aIsVertical, bool aIsIndeterminate) { + if (aIsVertical) { + return aIsIndeterminate ? kProgressVerticalIndeterminateOverlaySize + : kProgressVerticalOverlaySize; + } + return kProgressHorizontalOverlaySize; +} + +/* + * IsProgressMeterFilled - Determines if a progress meter is at 100% fill based + * on a comparison of the current value and maximum. + */ +static bool IsProgressMeterFilled(nsIFrame* aFrame) { + NS_ENSURE_TRUE(aFrame, false); + nsIFrame* parentFrame = aFrame->GetParent(); + NS_ENSURE_TRUE(parentFrame, false); + return nsNativeTheme::GetProgressValue(parentFrame) == + nsNativeTheme::GetProgressMaxValue(parentFrame); +} + +/* + * CalculateProgressOverlayRect - returns the padded overlay animation rect + * used in rendering progress bars. Resulting rects are used in rendering + * vista+ pulse overlays and indeterminate progress meters. Graphics should + * be rendered at the origin. + */ +RECT nsNativeThemeWin::CalculateProgressOverlayRect(nsIFrame* aFrame, + RECT* aWidgetRect, + bool aIsVertical, + bool aIsIndeterminate, + bool aIsClassic) { + NS_ASSERTION(aFrame, "bad frame pointer"); + NS_ASSERTION(aWidgetRect, "bad rect pointer"); + + int32_t frameSize = aIsVertical ? aWidgetRect->bottom - aWidgetRect->top + : aWidgetRect->right - aWidgetRect->left; + + // Recycle a set of progress pulse timers - these timers control the position + // of all progress overlays and indeterminate chunks that get rendered. + double span = aIsIndeterminate ? kProgressIndeterminateTimeSpan + : kProgressDeterminateTimeSpan; + TimeDuration period; + if (!aIsIndeterminate) { + if (TimeStamp::Now() > + (mProgressDeterminateTimeStamp + TimeDuration::FromSeconds(span))) { + mProgressDeterminateTimeStamp = TimeStamp::Now(); + } + period = TimeStamp::Now() - mProgressDeterminateTimeStamp; + } else { + if (TimeStamp::Now() > + (mProgressIndeterminateTimeStamp + TimeDuration::FromSeconds(span))) { + mProgressIndeterminateTimeStamp = TimeStamp::Now(); + } + period = TimeStamp::Now() - mProgressIndeterminateTimeStamp; + } + + double percent = period / TimeDuration::FromSeconds(span); + + if (!aIsVertical && IsFrameRTL(aFrame)) percent = 1 - percent; + + RECT overlayRect = *aWidgetRect; + int32_t overlaySize; + if (!aIsClassic) { + overlaySize = GetProgressOverlaySize(aIsVertical, aIsIndeterminate); + } else { + overlaySize = kProgressClassicOverlaySize; + } + + // Calculate a bounds that is larger than the meters frame such that the + // overlay starts and ends completely off the edge of the frame: + // [overlay][frame][overlay] + // This also yields a nice delay on rotation. Use overlaySize as the minimum + // size for [overlay] based on the graphics dims. If [frame] is larger, use + // the frame size instead. + int trackWidth = frameSize > overlaySize ? frameSize : overlaySize; + if (!aIsVertical) { + int xPos = aWidgetRect->left - trackWidth; + xPos += (int)ceil(((double)(trackWidth * 2) * percent)); + overlayRect.left = xPos; + overlayRect.right = xPos + overlaySize; + } else { + int yPos = aWidgetRect->bottom + trackWidth; + yPos -= (int)ceil(((double)(trackWidth * 2) * percent)); + overlayRect.bottom = yPos; + overlayRect.top = yPos - overlaySize; + } + return overlayRect; +} + +/* + * DrawProgressMeter - render an appropriate progress meter based on progress + * meter style, orientation, and os. Note, this does not render the underlying + * progress track. + * + * @param aFrame the widget frame + * @param aAppearance type of widget + * @param aTheme progress theme handle + * @param aHdc hdc returned by gfxWindowsNativeDrawing + * @param aPart the PP_X progress part + * @param aState the theme state + * @param aWidgetRect bounding rect for the widget + * @param aClipRect dirty rect that needs drawing. + * @param aAppUnits app units per device pixel + */ +void nsNativeThemeWin::DrawThemedProgressMeter( + nsIFrame* aFrame, StyleAppearance aAppearance, HANDLE aTheme, HDC aHdc, + int aPart, int aState, RECT* aWidgetRect, RECT* aClipRect) { + if (!aFrame || !aTheme || !aHdc) return; + + NS_ASSERTION(aWidgetRect, "bad rect pointer"); + NS_ASSERTION(aClipRect, "bad clip rect pointer"); + + RECT adjWidgetRect, adjClipRect; + adjWidgetRect = *aWidgetRect; + adjClipRect = *aClipRect; + + nsIFrame* parentFrame = aFrame->GetParent(); + if (!parentFrame) { + // We have no parent to work with, just bail. + NS_WARNING("No parent frame for progress rendering. Can't paint."); + return; + } + + ElementState elementState = GetContentState(parentFrame, aAppearance); + bool vertical = IsVerticalProgress(parentFrame); + bool indeterminate = elementState.HasState(ElementState::INDETERMINATE); + bool animate = indeterminate; + + // Vista and up progress meter is fill style, rendered here. We render + // the pulse overlay in the follow up section below. + DrawThemeBackground(aTheme, aHdc, aPart, aState, &adjWidgetRect, + &adjClipRect); + if (!IsProgressMeterFilled(aFrame)) { + animate = true; + } + + if (animate) { + // Indeterminate rendering + int32_t overlayPart = GetProgressOverlayStyle(vertical); + RECT overlayRect = CalculateProgressOverlayRect( + aFrame, &adjWidgetRect, vertical, indeterminate, false); + DrawThemeBackground(aTheme, aHdc, overlayPart, aState, &overlayRect, + &adjClipRect); + + if (!QueueAnimatedContentForRefresh(aFrame->GetContent(), 60)) { + NS_WARNING("unable to animate progress widget!"); + } + } +} + +LayoutDeviceIntMargin nsNativeThemeWin::GetCachedWidgetBorder( + HTHEME aTheme, nsUXThemeClass aThemeClass, StyleAppearance aAppearance, + int32_t aPart, int32_t aState) { + int32_t cacheIndex = aThemeClass * THEME_PART_DISTINCT_VALUE_COUNT + aPart; + int32_t cacheBitIndex = cacheIndex / 8; + uint8_t cacheBit = 1u << (cacheIndex % 8); + + if (mBorderCacheValid[cacheBitIndex] & cacheBit) { + return mBorderCache[cacheIndex]; + } + + // Get our info. + RECT outerRect; // Create a fake outer rect. + outerRect.top = outerRect.left = 100; + outerRect.right = outerRect.bottom = 200; + RECT contentRect(outerRect); + HRESULT res = GetThemeBackgroundContentRect(aTheme, nullptr, aPart, aState, + &outerRect, &contentRect); + + if (FAILED(res)) { + return LayoutDeviceIntMargin(); + } + + // Now compute the delta in each direction and place it in our + // nsIntMargin struct. + LayoutDeviceIntMargin result; + result.top = contentRect.top - outerRect.top; + result.bottom = outerRect.bottom - contentRect.bottom; + result.left = contentRect.left - outerRect.left; + result.right = outerRect.right - contentRect.right; + + mBorderCacheValid[cacheBitIndex] |= cacheBit; + mBorderCache[cacheIndex] = result; + + return result; +} + +nsresult nsNativeThemeWin::GetCachedMinimumWidgetSize( + nsIFrame* aFrame, HANDLE aTheme, nsUXThemeClass aThemeClass, + StyleAppearance aAppearance, int32_t aPart, int32_t aState, + THEMESIZE aSizeReq, mozilla::LayoutDeviceIntSize* aResult) { + int32_t cachePart = aPart; + + if (aAppearance == StyleAppearance::Button && aSizeReq == TS_MIN) { + // In practice, StyleAppearance::Button is the only widget type which has an + // aSizeReq that varies for us, and it can only be TS_MIN or TS_TRUE. Just + // stuff that extra bit into the aPart part of the cache, since BP_Count is + // well below THEME_PART_DISTINCT_VALUE_COUNT anyway. + cachePart = BP_Count; + } + + MOZ_ASSERT(aPart < THEME_PART_DISTINCT_VALUE_COUNT); + int32_t cacheIndex = + aThemeClass * THEME_PART_DISTINCT_VALUE_COUNT + cachePart; + int32_t cacheBitIndex = cacheIndex / 8; + uint8_t cacheBit = 1u << (cacheIndex % 8); + + if (mMinimumWidgetSizeCacheValid[cacheBitIndex] & cacheBit) { + *aResult = mMinimumWidgetSizeCache[cacheIndex]; + return NS_OK; + } + + HDC hdc = ::GetDC(NULL); + if (!hdc) { + return NS_ERROR_FAILURE; + } + + SIZE sz; + GetThemePartSize(aTheme, hdc, aPart, aState, nullptr, aSizeReq, &sz); + aResult->width = sz.cx; + aResult->height = sz.cy; + + switch (aAppearance) { + case StyleAppearance::SpinnerUpbutton: + case StyleAppearance::SpinnerDownbutton: + aResult->width++; + aResult->height = aResult->height / 2 + 1; + break; + + case StyleAppearance::Menuseparator: { + SIZE gutterSize(GetGutterSize(aTheme, hdc)); + aResult->width += gutterSize.cx; + break; + } + + case StyleAppearance::Menuarrow: + // Use the width of the arrow glyph as padding. See the drawing + // code for details. + aResult->width *= 2; + break; + + default: + break; + } + + ::ReleaseDC(nullptr, hdc); + + mMinimumWidgetSizeCacheValid[cacheBitIndex] |= cacheBit; + mMinimumWidgetSizeCache[cacheIndex] = *aResult; + + return NS_OK; +} + +mozilla::Maybe<nsUXThemeClass> nsNativeThemeWin::GetThemeClass( + StyleAppearance aAppearance) { + switch (aAppearance) { + case StyleAppearance::Button: + case StyleAppearance::Radio: + case StyleAppearance::Checkbox: + case StyleAppearance::Groupbox: + return Some(eUXButton); + case StyleAppearance::NumberInput: + case StyleAppearance::Textfield: + case StyleAppearance::Textarea: + return Some(eUXEdit); + case StyleAppearance::Toolbox: + return Some(eUXRebar); + case StyleAppearance::MozWinMediaToolbox: + return Some(eUXMediaRebar); + case StyleAppearance::MozWinCommunicationsToolbox: + return Some(eUXCommunicationsRebar); + case StyleAppearance::MozWinBrowsertabbarToolbox: + return Some(eUXBrowserTabBarRebar); + case StyleAppearance::Toolbar: + case StyleAppearance::Toolbarbutton: + case StyleAppearance::Separator: + return Some(eUXToolbar); + case StyleAppearance::ProgressBar: + case StyleAppearance::Progresschunk: + return Some(eUXProgress); + case StyleAppearance::Tab: + case StyleAppearance::Tabpanel: + case StyleAppearance::Tabpanels: + return Some(eUXTab); + case StyleAppearance::Range: + case StyleAppearance::RangeThumb: + return Some(eUXTrackbar); + case StyleAppearance::SpinnerUpbutton: + case StyleAppearance::SpinnerDownbutton: + return Some(eUXSpin); + case StyleAppearance::Menulist: + case StyleAppearance::MenulistButton: + case StyleAppearance::MozMenulistArrowButton: + return Some(eUXCombobox); + case StyleAppearance::Treeheadercell: + case StyleAppearance::Treeheadersortarrow: + return Some(eUXHeader); + case StyleAppearance::Listbox: + case StyleAppearance::Treeview: + case StyleAppearance::Treetwistyopen: + case StyleAppearance::Treeitem: + return Some(eUXListview); + case StyleAppearance::Menubar: + case StyleAppearance::Menupopup: + case StyleAppearance::Menuitem: + case StyleAppearance::Checkmenuitem: + case StyleAppearance::Radiomenuitem: + case StyleAppearance::Menucheckbox: + case StyleAppearance::Menuradio: + case StyleAppearance::Menuseparator: + case StyleAppearance::Menuarrow: + case StyleAppearance::Menuimage: + case StyleAppearance::Menuitemtext: + return Some(eUXMenu); + case StyleAppearance::MozWindowTitlebar: + case StyleAppearance::MozWindowTitlebarMaximized: + case StyleAppearance::MozWindowButtonClose: + case StyleAppearance::MozWindowButtonMinimize: + case StyleAppearance::MozWindowButtonMaximize: + case StyleAppearance::MozWindowButtonRestore: + case StyleAppearance::MozWindowButtonBox: + case StyleAppearance::MozWindowButtonBoxMaximized: + case StyleAppearance::MozWinBorderlessGlass: + return Some(eUXWindowFrame); + default: + return Nothing(); + } +} + +HANDLE +nsNativeThemeWin::GetTheme(StyleAppearance aAppearance) { + mozilla::Maybe<nsUXThemeClass> themeClass = GetThemeClass(aAppearance); + if (themeClass.isNothing()) { + return nullptr; + } + return nsUXThemeData::GetTheme(themeClass.value()); +} + +int32_t nsNativeThemeWin::StandardGetState(nsIFrame* aFrame, + StyleAppearance aAppearance, + bool wantFocused) { + ElementState elementState = GetContentState(aFrame, aAppearance); + if (elementState.HasAllStates(ElementState::HOVER | ElementState::ACTIVE)) { + return TS_ACTIVE; + } + if (elementState.HasState(ElementState::HOVER)) { + return TS_HOVER; + } + if (wantFocused) { + if (elementState.HasState(ElementState::FOCUSRING)) { + return TS_FOCUSED; + } + // On Windows, focused buttons are always drawn as such by the native + // theme, that's why we check ElementState::FOCUS instead of + // ElementState::FOCUSRING. + if (aAppearance == StyleAppearance::Button && + elementState.HasState(ElementState::FOCUS)) { + return TS_FOCUSED; + } + } + + return TS_NORMAL; +} + +bool nsNativeThemeWin::IsMenuActive(nsIFrame* aFrame, + StyleAppearance aAppearance) { + nsIContent* content = aFrame->GetContent(); + if (content->IsXULElement() && + content->NodeInfo()->Equals(nsGkAtoms::richlistitem)) + return CheckBooleanAttr(aFrame, nsGkAtoms::selected); + + return CheckBooleanAttr(aFrame, nsGkAtoms::menuactive); +} + +/** + * aPart is filled in with the UXTheme part code. On return, values > 0 + * are the actual UXTheme part code; -1 means the widget will be drawn by + * us; 0 means that we should use part code 0, which isn't a real part code + * but elicits some kind of default behaviour from UXTheme when drawing + * (but isThemeBackgroundPartiallyTransparent may not work). + */ +nsresult nsNativeThemeWin::GetThemePartAndState(nsIFrame* aFrame, + StyleAppearance aAppearance, + int32_t& aPart, + int32_t& aState) { + switch (aAppearance) { + case StyleAppearance::Button: { + aPart = BP_BUTTON; + if (!aFrame) { + aState = TS_NORMAL; + return NS_OK; + } + + ElementState elementState = GetContentState(aFrame, aAppearance); + if (elementState.HasState(ElementState::DISABLED)) { + aState = TS_DISABLED; + return NS_OK; + } + if (IsOpenButton(aFrame) || IsCheckedButton(aFrame)) { + aState = TS_ACTIVE; + return NS_OK; + } + + aState = StandardGetState(aFrame, aAppearance, true); + + // Check for default dialog buttons. These buttons should always look + // focused. + if (aState == TS_NORMAL && IsDefaultButton(aFrame)) aState = TS_FOCUSED; + return NS_OK; + } + case StyleAppearance::Checkbox: + case StyleAppearance::Radio: { + bool isCheckbox = (aAppearance == StyleAppearance::Checkbox); + aPart = isCheckbox ? BP_CHECKBOX : BP_RADIO; + + enum InputState { UNCHECKED = 0, CHECKED, INDETERMINATE }; + InputState inputState = UNCHECKED; + + if (!aFrame) { + aState = TS_NORMAL; + } else { + ElementState elementState = GetContentState(aFrame, aAppearance); + if (elementState.HasState(ElementState::CHECKED)) { + inputState = CHECKED; + } + if (isCheckbox && elementState.HasState(ElementState::INDETERMINATE)) { + inputState = INDETERMINATE; + } + + if (elementState.HasState(ElementState::DISABLED)) { + aState = TS_DISABLED; + } else { + aState = StandardGetState(aFrame, aAppearance, false); + } + } + + // 4 unchecked states, 4 checked states, 4 indeterminate states. + aState += inputState * 4; + return NS_OK; + } + case StyleAppearance::Groupbox: { + aPart = BP_GROUPBOX; + aState = TS_NORMAL; + // Since we don't support groupbox disabled and GBS_DISABLED looks the + // same as GBS_NORMAL don't bother supporting GBS_DISABLED. + return NS_OK; + } + case StyleAppearance::NumberInput: + case StyleAppearance::Textfield: + case StyleAppearance::Textarea: { + ElementState elementState = GetContentState(aFrame, aAppearance); + + /* Note: the NOSCROLL type has a rounded corner in each corner. The more + * specific HSCROLL, VSCROLL, HVSCROLL types have side and/or top/bottom + * edges rendered as straight horizontal lines with sharp corners to + * accommodate a scrollbar. However, the scrollbar gets rendered on top + * of this for us, so we don't care, and can just use NOSCROLL here. + */ + aPart = TFP_EDITBORDER_NOSCROLL; + + if (!aFrame) { + aState = TFS_EDITBORDER_NORMAL; + } else if (elementState.HasState(ElementState::DISABLED)) { + aState = TFS_EDITBORDER_DISABLED; + } else if (IsReadOnly(aFrame)) { + /* no special read-only state */ + aState = TFS_EDITBORDER_NORMAL; + } else if (elementState.HasAtLeastOneOfStates(ElementState::ACTIVE | + ElementState::FOCUSRING)) { + aState = TFS_EDITBORDER_FOCUSED; + } else if (elementState.HasState(ElementState::HOVER)) { + aState = TFS_EDITBORDER_HOVER; + } else { + aState = TFS_EDITBORDER_NORMAL; + } + + return NS_OK; + } + case StyleAppearance::ProgressBar: { + bool vertical = IsVerticalProgress(aFrame); + aPart = vertical ? PP_BARVERT : PP_BAR; + aState = PBBS_NORMAL; + return NS_OK; + } + case StyleAppearance::Progresschunk: { + nsIFrame* parentFrame = aFrame->GetParent(); + if (IsVerticalProgress(parentFrame)) { + aPart = PP_FILLVERT; + } else { + aPart = PP_FILL; + } + + aState = PBBVS_NORMAL; + return NS_OK; + } + case StyleAppearance::Toolbarbutton: { + aPart = BP_BUTTON; + if (!aFrame) { + aState = TS_NORMAL; + return NS_OK; + } + + ElementState elementState = GetContentState(aFrame, aAppearance); + if (elementState.HasState(ElementState::DISABLED)) { + aState = TS_DISABLED; + return NS_OK; + } + if (IsOpenButton(aFrame)) { + aState = TS_ACTIVE; + return NS_OK; + } + + if (elementState.HasAllStates(ElementState::HOVER | ElementState::ACTIVE)) + aState = TS_ACTIVE; + else if (elementState.HasState(ElementState::HOVER)) { + if (IsCheckedButton(aFrame)) + aState = TB_HOVER_CHECKED; + else + aState = TS_HOVER; + } else { + if (IsCheckedButton(aFrame)) + aState = TB_CHECKED; + else + aState = TS_NORMAL; + } + + return NS_OK; + } + case StyleAppearance::Separator: { + aPart = TP_SEPARATOR; + aState = TS_NORMAL; + return NS_OK; + } + case StyleAppearance::Range: { + if (IsRangeHorizontal(aFrame)) { + aPart = TKP_TRACK; + aState = TRS_NORMAL; + } else { + aPart = TKP_TRACKVERT; + aState = TRVS_NORMAL; + } + return NS_OK; + } + case StyleAppearance::RangeThumb: { + if (IsRangeHorizontal(aFrame)) { + aPart = TKP_THUMBBOTTOM; + } else { + aPart = IsFrameRTL(aFrame) ? TKP_THUMBLEFT : TKP_THUMBRIGHT; + } + ElementState elementState = GetContentState(aFrame, aAppearance); + if (!aFrame) { + aState = TS_NORMAL; + } else if (elementState.HasState(ElementState::DISABLED)) { + aState = TKP_DISABLED; + } else { + if (elementState.HasState( + ElementState::ACTIVE)) // Hover is not also a requirement for + // the thumb, since the drag is not + // canceled when you move outside the + // thumb. + aState = TS_ACTIVE; + else if (elementState.HasState(ElementState::FOCUSRING)) + aState = TKP_FOCUSED; + else if (elementState.HasState(ElementState::HOVER)) + aState = TS_HOVER; + else + aState = TS_NORMAL; + } + return NS_OK; + } + case StyleAppearance::SpinnerUpbutton: + case StyleAppearance::SpinnerDownbutton: { + aPart = (aAppearance == StyleAppearance::SpinnerUpbutton) ? SPNP_UP + : SPNP_DOWN; + ElementState elementState = GetContentState(aFrame, aAppearance); + if (!aFrame) { + aState = TS_NORMAL; + } else if (elementState.HasState(ElementState::DISABLED)) { + aState = TS_DISABLED; + } else { + aState = StandardGetState(aFrame, aAppearance, false); + } + return NS_OK; + } + case StyleAppearance::Toolbox: + case StyleAppearance::MozWinMediaToolbox: + case StyleAppearance::MozWinCommunicationsToolbox: + case StyleAppearance::MozWinBrowsertabbarToolbox: { + aState = 0; + aPart = RP_BACKGROUND; + return NS_OK; + } + case StyleAppearance::Toolbar: { + // Use -1 to indicate we don't wish to have the theme background drawn + // for this item. We will pass any nessessary information via aState, + // and will render the item using separate code. + aPart = -1; + aState = 0; + if (aFrame) { + nsIContent* content = aFrame->GetContent(); + nsIContent* parent = content->GetParent(); + // XXXzeniko hiding the first toolbar will result in an unwanted margin + if (parent && parent->GetFirstChild() == content) { + aState = 1; + } + } + return NS_OK; + } + case StyleAppearance::Treeview: + case StyleAppearance::Listbox: { + aPart = TREEVIEW_BODY; + aState = TS_NORMAL; + return NS_OK; + } + case StyleAppearance::Tabpanels: { + aPart = TABP_PANELS; + aState = TS_NORMAL; + return NS_OK; + } + case StyleAppearance::Tabpanel: { + aPart = TABP_PANEL; + aState = TS_NORMAL; + return NS_OK; + } + case StyleAppearance::Tab: { + aPart = TABP_TAB; + if (!aFrame) { + aState = TS_NORMAL; + return NS_OK; + } + + ElementState elementState = GetContentState(aFrame, aAppearance); + if (elementState.HasState(ElementState::DISABLED)) { + aState = TS_DISABLED; + return NS_OK; + } + + if (IsSelectedTab(aFrame)) { + aPart = TABP_TAB_SELECTED; + aState = TS_ACTIVE; // The selected tab is always "pressed". + } else + aState = StandardGetState(aFrame, aAppearance, true); + + return NS_OK; + } + case StyleAppearance::Treeheadersortarrow: { + // XXX Probably will never work due to a bug in the Luna theme. + aPart = 4; + aState = 1; + return NS_OK; + } + case StyleAppearance::Treeheadercell: { + aPart = 1; + if (!aFrame) { + aState = TS_NORMAL; + return NS_OK; + } + + aState = StandardGetState(aFrame, aAppearance, true); + + return NS_OK; + } + case StyleAppearance::MenulistButton: + case StyleAppearance::Menulist: { + nsIContent* content = aFrame->GetContent(); + bool useDropBorder = content && content->IsHTMLElement(); + ElementState elementState = GetContentState(aFrame, aAppearance); + + /* On Vista/Win7, we use CBP_DROPBORDER instead of DROPFRAME for HTML + * content or for editable menulists; this gives us the thin outline, + * instead of the gradient-filled background */ + if (useDropBorder) + aPart = CBP_DROPBORDER; + else + aPart = CBP_DROPFRAME; + + if (elementState.HasState(ElementState::DISABLED)) { + aState = TS_DISABLED; + } else if (IsReadOnly(aFrame)) { + aState = TS_NORMAL; + } else if (IsOpenButton(aFrame)) { + aState = TS_ACTIVE; + } else if (useDropBorder && + elementState.HasState(ElementState::FOCUSRING)) { + aState = TS_ACTIVE; + } else if (elementState.HasAllStates(ElementState::HOVER | + ElementState::ACTIVE)) { + aState = TS_ACTIVE; + } else if (elementState.HasState(ElementState::HOVER)) { + aState = TS_HOVER; + } else { + aState = TS_NORMAL; + } + + return NS_OK; + } + case StyleAppearance::MozMenulistArrowButton: { + bool isOpen = false; + + // HTML select and XUL menulist dropdown buttons get state from the + // parent. + nsIFrame* parentFrame = aFrame->GetParent(); + aFrame = parentFrame; + + ElementState elementState = GetContentState(aFrame, aAppearance); + aPart = CBP_DROPMARKER_VISTA; + + // For HTML controls with author styling, we should fall + // back to the old dropmarker style to avoid clashes with + // author-specified backgrounds and borders (bug #441034) + if (IsWidgetStyled(aFrame->PresContext(), aFrame, + StyleAppearance::Menulist)) { + aPart = CBP_DROPMARKER; + } + + if (elementState.HasState(ElementState::DISABLED)) { + aState = TS_DISABLED; + return NS_OK; + } + + if (nsComboboxControlFrame* ccf = do_QueryFrame(aFrame)) { + isOpen = ccf->IsDroppedDown(); + if (isOpen) { + /* Hover is propagated, but we need to know whether we're hovering + * just the combobox frame, not the dropdown frame. But, we can't get + * that information, since hover is on the content node, and they + * share the same content node. So, instead, we cheat -- if the + * dropdown is open, we always show the hover state. This looks fine + * in practice. + */ + aState = TS_HOVER; + return NS_OK; + } + } else { + /* The dropdown indicator on a menulist button in chrome is not given a + * hover effect. When the frame isn't isn't HTML content, we cheat and + * force the dropdown state to be normal. (Bug 430434) + */ + isOpen = IsOpenButton(aFrame); + aState = TS_NORMAL; + return NS_OK; + } + + aState = TS_NORMAL; + + // Dropdown button active state doesn't need :hover. + if (elementState.HasState(ElementState::ACTIVE)) { + if (isOpen) { + // XXX Button should look active until the mouse is released, but + // without making it look active when the popup is clicked. + return NS_OK; + } + aState = TS_ACTIVE; + } else if (elementState.HasState(ElementState::HOVER)) { + // No hover effect for XUL menulists and autocomplete dropdown buttons + // while the dropdown menu is open. + if (isOpen) { + // XXX HTML select dropdown buttons should have the hover effect when + // hovering the combobox frame, but not the popup frame. + return NS_OK; + } + aState = TS_HOVER; + } + return NS_OK; + } + case StyleAppearance::Menupopup: { + aPart = MENU_POPUPBACKGROUND; + aState = MB_ACTIVE; + return NS_OK; + } + case StyleAppearance::Menuitem: + case StyleAppearance::Checkmenuitem: + case StyleAppearance::Radiomenuitem: { + ElementState elementState = GetContentState(aFrame, aAppearance); + + auto* menu = dom::XULButtonElement::FromNodeOrNull(aFrame->GetContent()); + + const bool isTopLevel = IsTopLevelMenu(aFrame); + const bool isOpen = menu && menu->IsMenuPopupOpen(); + const bool isHover = IsMenuActive(aFrame, aAppearance); + + if (isTopLevel) { + aPart = MENU_BARITEM; + + if (isOpen) + aState = MBI_PUSHED; + else if (isHover) + aState = MBI_HOT; + else + aState = MBI_NORMAL; + + // the disabled states are offset by 3 + if (elementState.HasState(ElementState::DISABLED)) { + aState += 3; + } + } else { + aPart = MENU_POPUPITEM; + + if (isHover) + aState = MPI_HOT; + else + aState = MPI_NORMAL; + + // the disabled states are offset by 2 + if (elementState.HasState(ElementState::DISABLED)) { + aState += 2; + } + } + + return NS_OK; + } + case StyleAppearance::Menuseparator: + aPart = MENU_POPUPSEPARATOR; + aState = 0; + return NS_OK; + case StyleAppearance::Menuarrow: { + aPart = MENU_POPUPSUBMENU; + ElementState elementState = GetContentState(aFrame, aAppearance); + aState = elementState.HasState(ElementState::DISABLED) ? MSM_DISABLED + : MSM_NORMAL; + return NS_OK; + } + case StyleAppearance::Menucheckbox: + case StyleAppearance::Menuradio: { + ElementState elementState = GetContentState(aFrame, aAppearance); + + aPart = MENU_POPUPCHECK; + aState = MC_CHECKMARKNORMAL; + + // Radio states are offset by 2 + if (aAppearance == StyleAppearance::Menuradio) aState += 2; + + // the disabled states are offset by 1 + if (elementState.HasState(ElementState::DISABLED)) { + aState += 1; + } + + return NS_OK; + } + case StyleAppearance::Menuitemtext: + case StyleAppearance::Menuimage: + aPart = -1; + aState = 0; + return NS_OK; + + case StyleAppearance::MozWindowTitlebar: + aPart = mozilla::widget::themeconst::WP_CAPTION; + aState = GetTopLevelWindowActiveState(aFrame); + return NS_OK; + case StyleAppearance::MozWindowTitlebarMaximized: + aPart = mozilla::widget::themeconst::WP_MAXCAPTION; + aState = GetTopLevelWindowActiveState(aFrame); + return NS_OK; + case StyleAppearance::MozWindowButtonClose: + aPart = mozilla::widget::themeconst::WP_CLOSEBUTTON; + aState = GetWindowFrameButtonState(aFrame, + GetContentState(aFrame, aAppearance)); + return NS_OK; + case StyleAppearance::MozWindowButtonMinimize: + aPart = mozilla::widget::themeconst::WP_MINBUTTON; + aState = GetWindowFrameButtonState(aFrame, + GetContentState(aFrame, aAppearance)); + return NS_OK; + case StyleAppearance::MozWindowButtonMaximize: + aPart = mozilla::widget::themeconst::WP_MAXBUTTON; + aState = GetWindowFrameButtonState(aFrame, + GetContentState(aFrame, aAppearance)); + return NS_OK; + case StyleAppearance::MozWindowButtonRestore: + aPart = mozilla::widget::themeconst::WP_RESTOREBUTTON; + aState = GetWindowFrameButtonState(aFrame, + GetContentState(aFrame, aAppearance)); + return NS_OK; + case StyleAppearance::MozWindowButtonBox: + case StyleAppearance::MozWindowButtonBoxMaximized: + case StyleAppearance::MozWinBorderlessGlass: + aPart = -1; + aState = 0; + return NS_OK; + default: + aPart = 0; + aState = 0; + return NS_ERROR_FAILURE; + } +} + +static bool AssumeThemePartAndStateAreTransparent(int32_t aPart, + int32_t aState) { + if (!(IsWin8Point1OrLater() && nsUXThemeData::IsHighContrastOn()) && + aPart == MENU_POPUPITEM && aState == MBI_NORMAL) { + return true; + } + return false; +} + +// When running with per-monitor DPI (on Win8.1+), and rendering on a display +// with a different DPI setting from the system's default scaling, we need to +// apply scaling to native-themed elements as the Windows theme APIs assume +// the system default resolution. +static inline double GetThemeDpiScaleFactor(nsPresContext* aPresContext) { + if (WinUtils::IsPerMonitorDPIAware() || + StaticPrefs::layout_css_devPixelsPerPx() > 0.0) { + nsCOMPtr<nsIWidget> rootWidget = aPresContext->GetRootWidget(); + if (rootWidget) { + double systemScale = WinUtils::SystemScaleFactor(); + return rootWidget->GetDefaultScale().scale / systemScale; + } + } + return 1.0; +} + +static inline double GetThemeDpiScaleFactor(nsIFrame* aFrame) { + return GetThemeDpiScaleFactor(aFrame->PresContext()); +} + +NS_IMETHODIMP +nsNativeThemeWin::DrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame, + StyleAppearance aAppearance, + const nsRect& aRect, + const nsRect& aDirtyRect, + DrawOverflow aDrawOverflow) { + if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { + return Theme::DrawWidgetBackground(aContext, aFrame, aAppearance, aRect, + aDirtyRect, aDrawOverflow); + } + + HANDLE theme = GetTheme(aAppearance); + if (!theme) + return ClassicDrawWidgetBackground(aContext, aFrame, aAppearance, aRect, + aDirtyRect); + + // ^^ without the right sdk, assume xp theming and fall through. + if (gfxWindowsPlatform::GetPlatform()->DwmCompositionEnabled()) { + switch (aAppearance) { + case StyleAppearance::MozWindowTitlebar: + case StyleAppearance::MozWindowTitlebarMaximized: + // Nothing to draw, these areas are glass. Minimum dimensions + // should be set, so xul content should be layed out correctly. + return NS_OK; + case StyleAppearance::MozWindowButtonClose: + case StyleAppearance::MozWindowButtonMinimize: + case StyleAppearance::MozWindowButtonMaximize: + case StyleAppearance::MozWindowButtonRestore: + // Not conventional bitmaps, can't be retrieved. If we fall + // through here and call the theme library we'll get aero + // basic bitmaps. + return NS_OK; + case StyleAppearance::MozWinBorderlessGlass: + // Nothing to draw, this is the glass background. + return NS_OK; + case StyleAppearance::MozWindowButtonBox: + case StyleAppearance::MozWindowButtonBoxMaximized: + // We handle these through nsIWidget::UpdateThemeGeometries + return NS_OK; + default: + break; + } + } + + int32_t part, state; + nsresult rv = GetThemePartAndState(aFrame, aAppearance, part, state); + if (NS_FAILED(rv)) return rv; + + if (AssumeThemePartAndStateAreTransparent(part, state)) { + return NS_OK; + } + + gfxContextMatrixAutoSaveRestore save(aContext); + + double themeScale = GetThemeDpiScaleFactor(aFrame); + if (themeScale != 1.0) { + aContext->SetMatrix( + aContext->CurrentMatrix().PreScale(themeScale, themeScale)); + } + + gfxFloat p2a = gfxFloat(aFrame->PresContext()->AppUnitsPerDevPixel()); + RECT widgetRect; + RECT clipRect; + gfxRect tr(aRect.X(), aRect.Y(), aRect.Width(), aRect.Height()), + dr(aDirtyRect.X(), aDirtyRect.Y(), aDirtyRect.Width(), + aDirtyRect.Height()); + + tr.Scale(1.0 / (p2a * themeScale)); + dr.Scale(1.0 / (p2a * themeScale)); + + gfxWindowsNativeDrawing nativeDrawing( + aContext, dr, GetWidgetNativeDrawingFlags(aAppearance)); + +RENDER_AGAIN: + + HDC hdc = nativeDrawing.BeginNativeDrawing(); + if (!hdc) return NS_ERROR_FAILURE; + + nativeDrawing.TransformToNativeRect(tr, widgetRect); + nativeDrawing.TransformToNativeRect(dr, clipRect); + +#if 0 + { + MOZ_LOG(gWindowsLog, LogLevel::Error, + (stderr, "xform: %f %f %f %f [%f %f]\n", m._11, m._21, m._12, m._22, + m._31, m._32)); + MOZ_LOG(gWindowsLog, LogLevel::Error, + (stderr, "tr: [%d %d %d %d]\ndr: [%d %d %d %d]\noff: [%f %f]\n", + tr.x, tr.y, tr.width, tr.height, dr.x, dr.y, dr.width, dr.height, + offset.x, offset.y)); + } +#endif + + if (aAppearance == StyleAppearance::MozWindowTitlebar) { + // Clip out the left and right corners of the frame, all we want in + // is the middle section. + widgetRect.left -= GetSystemMetrics(SM_CXFRAME); + widgetRect.right += GetSystemMetrics(SM_CXFRAME); + } else if (aAppearance == StyleAppearance::MozWindowTitlebarMaximized) { + // The origin of the window is off screen when maximized and windows + // doesn't compensate for this in rendering the background. Push the + // top of the bitmap down by SM_CYFRAME so we get the full graphic. + widgetRect.top += GetSystemMetrics(SM_CYFRAME); + } else if (aAppearance == StyleAppearance::Tab) { + // For left edge and right edge tabs, we need to adjust the widget + // rects and clip rects so that the edges don't get drawn. + bool isLeft = IsLeftToSelectedTab(aFrame); + bool isRight = !isLeft && IsRightToSelectedTab(aFrame); + + if (isLeft || isRight) { + // HACK ALERT: There appears to be no way to really obtain this value, so + // we're forced to just use the default value for Luna (which also happens + // to be correct for all the other skins I've tried). + int32_t edgeSize = 2; + + // Armed with the size of the edge, we now need to either shift to the + // left or to the right. The clip rect won't include this extra area, so + // we know that we're effectively shifting the edge out of view (such that + // it won't be painted). + if (isLeft) + // The right edge should not be drawn. Extend our rect by the edge + // size. + widgetRect.right += edgeSize; + else + // The left edge should not be drawn. Move the widget rect's left coord + // back. + widgetRect.left -= edgeSize; + } + } else if (aAppearance == StyleAppearance::MozWindowButtonMinimize) { + OffsetBackgroundRect(widgetRect, CAPTIONBUTTON_MINIMIZE); + } else if (aAppearance == StyleAppearance::MozWindowButtonMaximize || + aAppearance == StyleAppearance::MozWindowButtonRestore) { + OffsetBackgroundRect(widgetRect, CAPTIONBUTTON_RESTORE); + } else if (aAppearance == StyleAppearance::MozWindowButtonClose) { + OffsetBackgroundRect(widgetRect, CAPTIONBUTTON_CLOSE); + } + + // widgetRect is the bounding box for a widget, yet the scale track is only + // a small portion of this size, so the edges of the scale need to be + // adjusted to the real size of the track. + if (aAppearance == StyleAppearance::Range) { + RECT contentRect; + GetThemeBackgroundContentRect(theme, hdc, part, state, &widgetRect, + &contentRect); + + SIZE siz; + GetThemePartSize(theme, hdc, part, state, &widgetRect, TS_TRUE, &siz); + + // When rounding is necessary, we round the position of the track + // away from the chevron of the thumb to make it look better. + if (IsRangeHorizontal(aFrame)) { + contentRect.top += (contentRect.bottom - contentRect.top - siz.cy) / 2; + contentRect.bottom = contentRect.top + siz.cy; + } else { + if (!IsFrameRTL(aFrame)) { + contentRect.left += (contentRect.right - contentRect.left - siz.cx) / 2; + contentRect.right = contentRect.left + siz.cx; + } else { + contentRect.right -= + (contentRect.right - contentRect.left - siz.cx) / 2; + contentRect.left = contentRect.right - siz.cx; + } + } + + DrawThemeBackground(theme, hdc, part, state, &contentRect, &clipRect); + } else if (aAppearance == StyleAppearance::Menucheckbox || + aAppearance == StyleAppearance::Menuradio) { + bool isChecked = false; + isChecked = CheckBooleanAttr(aFrame, nsGkAtoms::checked); + + if (isChecked) { + int bgState = MCB_NORMAL; + ElementState elementState = GetContentState(aFrame, aAppearance); + + // the disabled states are offset by 1 + if (elementState.HasState(ElementState::DISABLED)) { + bgState += 1; + } + + SIZE checkboxBGSize(GetCheckboxBGSize(theme, hdc)); + + RECT checkBGRect = widgetRect; + if (IsFrameRTL(aFrame)) { + checkBGRect.left = checkBGRect.right - checkboxBGSize.cx; + } else { + checkBGRect.right = checkBGRect.left + checkboxBGSize.cx; + } + + // Center the checkbox background vertically in the menuitem + checkBGRect.top += + (checkBGRect.bottom - checkBGRect.top) / 2 - checkboxBGSize.cy / 2; + checkBGRect.bottom = checkBGRect.top + checkboxBGSize.cy; + + DrawThemeBackground(theme, hdc, MENU_POPUPCHECKBACKGROUND, bgState, + &checkBGRect, &clipRect); + + MARGINS checkMargins = GetCheckboxMargins(theme, hdc); + RECT checkRect = checkBGRect; + checkRect.left += checkMargins.cxLeftWidth; + checkRect.right -= checkMargins.cxRightWidth; + checkRect.top += checkMargins.cyTopHeight; + checkRect.bottom -= checkMargins.cyBottomHeight; + DrawThemeBackground(theme, hdc, MENU_POPUPCHECK, state, &checkRect, + &clipRect); + } + } else if (aAppearance == StyleAppearance::Menupopup) { + DrawThemeBackground(theme, hdc, MENU_POPUPBORDERS, /* state */ 0, + &widgetRect, &clipRect); + SIZE borderSize; + GetThemePartSize(theme, hdc, MENU_POPUPBORDERS, 0, nullptr, TS_TRUE, + &borderSize); + + RECT bgRect = widgetRect; + bgRect.top += borderSize.cy; + bgRect.bottom -= borderSize.cy; + bgRect.left += borderSize.cx; + bgRect.right -= borderSize.cx; + + DrawThemeBackground(theme, hdc, MENU_POPUPBACKGROUND, /* state */ 0, + &bgRect, &clipRect); + + SIZE gutterSize(GetGutterSize(theme, hdc)); + + RECT gutterRect; + gutterRect.top = bgRect.top; + gutterRect.bottom = bgRect.bottom; + if (IsFrameRTL(aFrame)) { + gutterRect.right = bgRect.right; + gutterRect.left = gutterRect.right - gutterSize.cx; + } else { + gutterRect.left = bgRect.left; + gutterRect.right = gutterRect.left + gutterSize.cx; + } + + DrawThemeBGRTLAware(theme, hdc, MENU_POPUPGUTTER, /* state */ 0, + &gutterRect, &clipRect, IsFrameRTL(aFrame)); + } else if (aAppearance == StyleAppearance::Menuseparator) { + SIZE gutterSize(GetGutterSize(theme, hdc)); + + RECT sepRect = widgetRect; + if (IsFrameRTL(aFrame)) + sepRect.right -= gutterSize.cx; + else + sepRect.left += gutterSize.cx; + + DrawThemeBackground(theme, hdc, MENU_POPUPSEPARATOR, /* state */ 0, + &sepRect, &clipRect); + } else if (aAppearance == StyleAppearance::Menuarrow) { + // We're dpi aware and as such on systems that have dpi > 96 set, the + // theme library expects us to do proper positioning and scaling of glyphs. + // For StyleAppearance::Menuarrow, layout may hand us a widget rect larger + // than the glyph rect we request in GetMinimumWidgetSize. To prevent + // distortion we have to position and scale what we draw. + + SIZE glyphSize; + GetThemePartSize(theme, hdc, part, state, nullptr, TS_TRUE, &glyphSize); + + int32_t widgetHeight = widgetRect.bottom - widgetRect.top; + + RECT renderRect = widgetRect; + + // We request (glyph width * 2, glyph height) in GetMinimumWidgetSize. In + // Firefox some menu items provide the full height of the item to us, in + // others our widget rect is the exact dims of our arrow glyph. Adjust the + // vertical position by the added space, if any exists. + renderRect.top += ((widgetHeight - glyphSize.cy) / 2); + renderRect.bottom = renderRect.top + glyphSize.cy; + // I'm using the width of the arrow glyph for the arrow-side padding. + // AFAICT there doesn't appear to be a theme constant we can query + // for this value. Generally this looks correct, and has the added + // benefit of being a dpi adjusted value. + if (!IsFrameRTL(aFrame)) { + renderRect.right = widgetRect.right - glyphSize.cx; + renderRect.left = renderRect.right - glyphSize.cx; + } else { + renderRect.left = glyphSize.cx; + renderRect.right = renderRect.left + glyphSize.cx; + } + DrawThemeBGRTLAware(theme, hdc, part, state, &renderRect, &clipRect, + IsFrameRTL(aFrame)); + } + // The following widgets need to be RTL-aware + else if (aAppearance == StyleAppearance::MozMenulistArrowButton) { + DrawThemeBGRTLAware(theme, hdc, part, state, &widgetRect, &clipRect, + IsFrameRTL(aFrame)); + } else if (aAppearance == StyleAppearance::NumberInput || + aAppearance == StyleAppearance::Textfield || + aAppearance == StyleAppearance::Textarea) { + DrawThemeBackground(theme, hdc, part, state, &widgetRect, &clipRect); + + if (state == TFS_EDITBORDER_DISABLED) { + InflateRect(&widgetRect, -1, -1); + ::FillRect(hdc, &widgetRect, reinterpret_cast<HBRUSH>(COLOR_BTNFACE + 1)); + } + } else if (aAppearance == StyleAppearance::ProgressBar) { + // DrawThemeBackground renders each corner with a solid white pixel. + // Restore these pixels to the underlying color. Tracks are rendered + // using alpha recovery, so this makes the corners transparent. + COLORREF color; + color = GetPixel(hdc, widgetRect.left, widgetRect.top); + DrawThemeBackground(theme, hdc, part, state, &widgetRect, &clipRect); + SetPixel(hdc, widgetRect.left, widgetRect.top, color); + SetPixel(hdc, widgetRect.right - 1, widgetRect.top, color); + SetPixel(hdc, widgetRect.right - 1, widgetRect.bottom - 1, color); + SetPixel(hdc, widgetRect.left, widgetRect.bottom - 1, color); + } else if (aAppearance == StyleAppearance::Progresschunk) { + DrawThemedProgressMeter(aFrame, aAppearance, theme, hdc, part, state, + &widgetRect, &clipRect); + } + // If part is negative, the element wishes us to not render a themed + // background, instead opting to be drawn specially below. + else if (part >= 0) { + DrawThemeBackground(theme, hdc, part, state, &widgetRect, &clipRect); + } + + // Draw focus rectangles for range elements + // XXX it'd be nice to draw these outside of the frame + if (aAppearance == StyleAppearance::Range) { + ElementState contentState = GetContentState(aFrame, aAppearance); + + if (contentState.HasState(ElementState::FOCUSRING)) { + POINT vpOrg; + HPEN hPen = nullptr; + + uint8_t id = SaveDC(hdc); + + ::SelectClipRgn(hdc, nullptr); + ::GetViewportOrgEx(hdc, &vpOrg); + ::SetBrushOrgEx(hdc, vpOrg.x + widgetRect.left, vpOrg.y + widgetRect.top, + nullptr); + ::SetTextColor(hdc, 0); + ::DrawFocusRect(hdc, &widgetRect); + ::RestoreDC(hdc, id); + if (hPen) { + ::DeleteObject(hPen); + } + } + } else if (aAppearance == StyleAppearance::Toolbar && state == 0) { + // Draw toolbar separator lines above all toolbars except the first one. + // The lines are part of the Rebar theme, which is loaded for + // StyleAppearance::Toolbox. + theme = GetTheme(StyleAppearance::Toolbox); + if (!theme) return NS_ERROR_FAILURE; + + widgetRect.bottom = widgetRect.top + TB_SEPARATOR_HEIGHT; + DrawThemeEdge(theme, hdc, RP_BAND, 0, &widgetRect, EDGE_ETCHED, BF_TOP, + nullptr); + } + + nativeDrawing.EndNativeDrawing(); + + if (nativeDrawing.ShouldRenderAgain()) goto RENDER_AGAIN; + + nativeDrawing.PaintToContext(); + + return NS_OK; +} + +bool nsNativeThemeWin::CreateWebRenderCommandsForWidget( + wr::DisplayListBuilder& aBuilder, wr::IpcResourceUpdateQueue& aResources, + const layers::StackingContextHelper& aSc, + layers::RenderRootStateManager* aManager, nsIFrame* aFrame, + StyleAppearance aAppearance, const nsRect& aRect) { + if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { + return Theme::CreateWebRenderCommandsForWidget( + aBuilder, aResources, aSc, aManager, aFrame, aAppearance, aRect); + } + return false; +} + +static void ScaleForFrameDPI(LayoutDeviceIntMargin* aMargin, nsIFrame* aFrame) { + double themeScale = GetThemeDpiScaleFactor(aFrame); + if (themeScale != 1.0) { + aMargin->top = NSToIntRound(aMargin->top * themeScale); + aMargin->left = NSToIntRound(aMargin->left * themeScale); + aMargin->bottom = NSToIntRound(aMargin->bottom * themeScale); + aMargin->right = NSToIntRound(aMargin->right * themeScale); + } +} + +static void ScaleForFrameDPI(LayoutDeviceIntSize* aSize, nsIFrame* aFrame) { + double themeScale = GetThemeDpiScaleFactor(aFrame); + if (themeScale != 1.0) { + aSize->width = NSToIntRound(aSize->width * themeScale); + aSize->height = NSToIntRound(aSize->height * themeScale); + } +} + +LayoutDeviceIntMargin nsNativeThemeWin::GetWidgetBorder( + nsDeviceContext* aContext, nsIFrame* aFrame, StyleAppearance aAppearance) { + LayoutDeviceIntMargin result; + mozilla::Maybe<nsUXThemeClass> themeClass = GetThemeClass(aAppearance); + HTHEME theme = NULL; + if (!themeClass.isNothing()) { + theme = nsUXThemeData::GetTheme(themeClass.value()); + } + if (!theme) { + result = ClassicGetWidgetBorder(aContext, aFrame, aAppearance); + ScaleForFrameDPI(&result, aFrame); + return result; + } + + if (!WidgetIsContainer(aAppearance) || + aAppearance == StyleAppearance::Toolbox || + aAppearance == StyleAppearance::MozWinMediaToolbox || + aAppearance == StyleAppearance::MozWinCommunicationsToolbox || + aAppearance == StyleAppearance::MozWinBrowsertabbarToolbox || + aAppearance == StyleAppearance::Tabpanel || + aAppearance == StyleAppearance::Menuitem || + aAppearance == StyleAppearance::Checkmenuitem || + aAppearance == StyleAppearance::Radiomenuitem || + aAppearance == StyleAppearance::Menupopup || + aAppearance == StyleAppearance::Menuimage || + aAppearance == StyleAppearance::Menuitemtext || + aAppearance == StyleAppearance::Separator || + aAppearance == StyleAppearance::MozWindowTitlebar || + aAppearance == StyleAppearance::MozWindowTitlebarMaximized || + aAppearance == StyleAppearance::MozWinBorderlessGlass) + return result; // Don't worry about it. + + int32_t part, state; + nsresult rv = GetThemePartAndState(aFrame, aAppearance, part, state); + if (NS_FAILED(rv)) return result; + + if (aAppearance == StyleAppearance::Toolbar) { + // make space for the separator line above all toolbars but the first + if (state == 0) result.top = TB_SEPARATOR_HEIGHT; + return result; + } + + result = GetCachedWidgetBorder(theme, themeClass.value(), aAppearance, part, + state); + + // Remove the edges for tabs that are before or after the selected tab, + if (aAppearance == StyleAppearance::Tab) { + if (IsLeftToSelectedTab(aFrame)) + // Remove the right edge, since we won't be drawing it. + result.right = 0; + else if (IsRightToSelectedTab(aFrame)) + // Remove the left edge, since we won't be drawing it. + result.left = 0; + } + + if (aFrame && (aAppearance == StyleAppearance::NumberInput || + aAppearance == StyleAppearance::Textfield || + aAppearance == StyleAppearance::Textarea)) { + nsIContent* content = aFrame->GetContent(); + if (content && content->IsHTMLElement()) { + // We need to pad textfields by 1 pixel, since the caret will draw + // flush against the edge by default if we don't. + result.top++; + result.left++; + result.bottom++; + result.right++; + } + } + + ScaleForFrameDPI(&result, aFrame); + return result; +} + +bool nsNativeThemeWin::GetWidgetPadding(nsDeviceContext* aContext, + nsIFrame* aFrame, + StyleAppearance aAppearance, + LayoutDeviceIntMargin* aResult) { + switch (aAppearance) { + // Radios and checkboxes return a fixed size in GetMinimumWidgetSize + // and have a meaningful baseline, so they can't have + // author-specified padding. + case StyleAppearance::Checkbox: + case StyleAppearance::Radio: + aResult->SizeTo(0, 0, 0, 0); + return true; + default: + break; + } + + bool ok = true; + + if (aAppearance == StyleAppearance::MozWindowButtonBox || + aAppearance == StyleAppearance::MozWindowButtonBoxMaximized) { + aResult->SizeTo(0, 0, 0, 0); + + // aero glass doesn't display custom buttons + if (gfxWindowsPlatform::GetPlatform()->DwmCompositionEnabled()) return true; + + // button padding for standard windows + if (aAppearance == StyleAppearance::MozWindowButtonBox) { + aResult->top = GetSystemMetrics(SM_CXFRAME); + } + ScaleForFrameDPI(aResult, aFrame); + return ok; + } + + // Content padding + if (aAppearance == StyleAppearance::MozWindowTitlebar || + aAppearance == StyleAppearance::MozWindowTitlebarMaximized) { + aResult->SizeTo(0, 0, 0, 0); + // Prior to Windows 10, a bug in DwmDefWindowProc would cause window + // button presses/mouseovers to be missed. This bug is circumvented by + // adding padding to the top of the window that is the size of the caption + // area and then "removing" it when calculating the client area for + // WM_NCCALCSIZE. See bug 618353, + if (!IsWin10OrLater() && + aAppearance == StyleAppearance::MozWindowTitlebarMaximized) { + nsCOMPtr<nsIWidget> rootWidget; + if (WinUtils::HasSystemMetricsForDpi()) { + rootWidget = aFrame->PresContext()->GetRootWidget(); + } + if (rootWidget) { + double dpi = rootWidget->GetDPI(); + aResult->top = WinUtils::GetSystemMetricsForDpi(SM_CYFRAME, dpi) + + WinUtils::GetSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi); + } else { + aResult->top = + GetSystemMetrics(SM_CYFRAME) + GetSystemMetrics(SM_CXPADDEDBORDER); + } + } + return ok; + } + + HANDLE theme = GetTheme(aAppearance); + if (!theme) { + ok = ClassicGetWidgetPadding(aContext, aFrame, aAppearance, aResult); + ScaleForFrameDPI(aResult, aFrame); + return ok; + } + + if (aAppearance == StyleAppearance::Menupopup) { + SIZE popupSize; + GetThemePartSize(theme, nullptr, MENU_POPUPBORDERS, /* state */ 0, nullptr, + TS_TRUE, &popupSize); + aResult->top = aResult->bottom = popupSize.cy; + aResult->left = aResult->right = popupSize.cx; + ScaleForFrameDPI(aResult, aFrame); + return ok; + } + + /* textfields need extra pixels on all sides, otherwise they wrap their + * content too tightly. The actual border is drawn 1px inside the specified + * rectangle, so Gecko will end up making the contents look too small. + * Instead, we add 2px padding for the contents and fix this. (Used to be 1px + * added, see bug 430212) + */ + if (aAppearance == StyleAppearance::NumberInput || + aAppearance == StyleAppearance::Textfield || + aAppearance == StyleAppearance::Textarea) { + aResult->top = aResult->bottom = 2; + aResult->left = aResult->right = 2; + ScaleForFrameDPI(aResult, aFrame); + return ok; + } else if (IsHTMLContent(aFrame) && + (aAppearance == StyleAppearance::Menulist || + aAppearance == StyleAppearance::MenulistButton)) { + /* For content menulist controls, we need an extra pixel so that we have + * room to draw our focus rectangle stuff. Otherwise, the focus rect might + * overlap the control's border. + */ + aResult->top = aResult->bottom = 1; + aResult->left = aResult->right = 1; + ScaleForFrameDPI(aResult, aFrame); + return ok; + } + + int32_t right, left, top, bottom; + right = left = top = bottom = 0; + switch (aAppearance) { + case StyleAppearance::Menuimage: + right = 8; + left = 3; + break; + case StyleAppearance::Menucheckbox: + case StyleAppearance::Menuradio: + right = 8; + left = 0; + break; + case StyleAppearance::Menuitemtext: + // There seem to be exactly 4 pixels from the edge + // of the gutter to the text: 2px margin (CSS) + 2px padding (here) + { + SIZE size(GetGutterSize(theme, nullptr)); + left = size.cx + 2; + } + break; + case StyleAppearance::Menuseparator: { + SIZE size(GetGutterSize(theme, nullptr)); + left = size.cx + 5; + } break; + case StyleAppearance::Button: + if (aFrame->GetContent()->IsXULElement()) { + top = 2; + bottom = 3; + } + left = right = 5; + break; + default: + return false; + } + + if (IsFrameRTL(aFrame)) { + aResult->right = left; + aResult->left = right; + } else { + aResult->right = right; + aResult->left = left; + } + aResult->top = top; + aResult->bottom = bottom; + + ScaleForFrameDPI(aResult, aFrame); + return ok; +} + +bool nsNativeThemeWin::GetWidgetOverflow(nsDeviceContext* aContext, + nsIFrame* aFrame, + StyleAppearance aAppearance, + nsRect* aOverflowRect) { + if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { + return Theme::GetWidgetOverflow(aContext, aFrame, aAppearance, + aOverflowRect); + } + + /* This is disabled for now, because it causes invalidation problems -- + * see bug 420381. The effect of not updating the overflow area is that + * for dropdown buttons in content areas, there is a 1px border on 3 sides + * where, if invalidated, the dropdown control probably won't be repainted. + * This is fairly minor, as by default there is nothing in that area, and + * a border only shows up if the widget is being hovered. + * + * TODO(jwatt): Figure out what do to about + * StyleAppearance::MozMenulistArrowButton too. + */ +#if 0 + /* We explicitly draw dropdown buttons in HTML content 1px bigger up, right, + * and bottom so that they overlap the dropdown's border like they're + * supposed to. + */ + if (aAppearance == StyleAppearance::MenulistButton && + IsHTMLContent(aFrame) && + !IsWidgetStyled(aFrame->GetParent()->PresContext(), + aFrame->GetParent(), + StyleAppearance::Menulist)) + { + int32_t p2a = aContext->AppUnitsPerDevPixel(); + /* Note: no overflow on the left */ + nsMargin m(p2a, p2a, p2a, 0); + aOverflowRect->Inflate (m); + return true; + } +#endif + + return false; +} + +LayoutDeviceIntSize nsNativeThemeWin::GetMinimumWidgetSize( + nsPresContext* aPresContext, nsIFrame* aFrame, + StyleAppearance aAppearance) { + if (IsWidgetNonNative(aFrame, aAppearance) == NonNative::Always) { + return Theme::GetMinimumWidgetSize(aPresContext, aFrame, aAppearance); + } + + mozilla::Maybe<nsUXThemeClass> themeClass = GetThemeClass(aAppearance); + HTHEME theme = NULL; + if (!themeClass.isNothing()) { + theme = nsUXThemeData::GetTheme(themeClass.value()); + } + if (!theme) { + auto result = ClassicGetMinimumWidgetSize(aFrame, aAppearance); + ScaleForFrameDPI(&result, aFrame); + return result; + } + + switch (aAppearance) { + case StyleAppearance::Groupbox: + case StyleAppearance::NumberInput: + case StyleAppearance::Textfield: + case StyleAppearance::Toolbox: + case StyleAppearance::MozWinMediaToolbox: + case StyleAppearance::MozWinCommunicationsToolbox: + case StyleAppearance::MozWinBrowsertabbarToolbox: + case StyleAppearance::Toolbar: + case StyleAppearance::Progresschunk: + case StyleAppearance::Tabpanels: + case StyleAppearance::Tabpanel: + case StyleAppearance::Listbox: + case StyleAppearance::Treeview: + case StyleAppearance::Menuitemtext: + case StyleAppearance::MozWinBorderlessGlass: + return {}; // Don't worry about it. + default: + break; + } + + if (aAppearance == StyleAppearance::Menuitem && IsTopLevelMenu(aFrame)) { + return {}; // Don't worry about it for top level menus + } + + // Call GetSystemMetrics to determine size for WinXP scrollbars + // (GetThemeSysSize API returns the optimal size for the theme, but + // Windows appears to always use metrics when drawing standard scrollbars) + THEMESIZE sizeReq = TS_TRUE; // Best-fit size + switch (aAppearance) { + case StyleAppearance::MozMenulistArrowButton: { + auto result = ClassicGetMinimumWidgetSize(aFrame, aAppearance); + ScaleForFrameDPI(&result, aFrame); + return result; + } + case StyleAppearance::Menuitem: + case StyleAppearance::Checkmenuitem: + case StyleAppearance::Radiomenuitem: + if (!IsTopLevelMenu(aFrame)) { + SIZE gutterSize(GetCachedGutterSize(theme)); + LayoutDeviceIntSize result(gutterSize.cx, gutterSize.cy); + ScaleForFrameDPI(&result, aFrame); + return result; + } + break; + + case StyleAppearance::Menuimage: + case StyleAppearance::Menucheckbox: + case StyleAppearance::Menuradio: { + SIZE boxSize(GetCachedGutterSize(theme)); + LayoutDeviceIntSize result(boxSize.cx + 2, boxSize.cy); + ScaleForFrameDPI(&result, aFrame); + return result; + } + + case StyleAppearance::Menuitemtext: + return {}; + + case StyleAppearance::ProgressBar: + // Best-fit size for progress meters is too large for most + // themes. We want these widgets to be able to really shrink + // down, so use the min-size request value (of 0). + sizeReq = TS_MIN; + break; + + case StyleAppearance::RangeThumb: { + LayoutDeviceIntSize result(12, 20); + if (!IsRangeHorizontal(aFrame)) { + std::swap(result.width, result.height); + } + ScaleForFrameDPI(&result, aFrame); + return result; + } + + case StyleAppearance::Separator: { + // that's 2px left margin, 2px right margin and 2px separator + // (the margin is drawn as part of the separator, though) + LayoutDeviceIntSize result(6, 0); + ScaleForFrameDPI(&result, aFrame); + return result; + } + + case StyleAppearance::Button: + // We should let HTML buttons shrink to their min size. + // FIXME bug 403934: We should probably really separate + // GetPreferredWidgetSize from GetMinimumWidgetSize, so callers can + // use the one they want. + if (aFrame->GetContent()->IsHTMLElement()) { + sizeReq = TS_MIN; + } + break; + + case StyleAppearance::MozWindowButtonMaximize: + case StyleAppearance::MozWindowButtonRestore: { + // The only way to get accurate titlebar button info is to query a + // window w/buttons when it's visible. nsWindow takes care of this and + // stores that info in nsUXThemeData. + SIZE sz = nsUXThemeData::GetCommandButtonMetrics(CMDBUTTONIDX_RESTORE); + LayoutDeviceIntSize result(sz.cx, sz.cy); + AddPaddingRect(&result, CAPTIONBUTTON_RESTORE); + return result; + } + + case StyleAppearance::MozWindowButtonMinimize: { + SIZE sz = nsUXThemeData::GetCommandButtonMetrics(CMDBUTTONIDX_MINIMIZE); + LayoutDeviceIntSize result(sz.cx, sz.cy); + AddPaddingRect(&result, CAPTIONBUTTON_MINIMIZE); + return result; + } + + case StyleAppearance::MozWindowButtonClose: { + SIZE sz = nsUXThemeData::GetCommandButtonMetrics(CMDBUTTONIDX_CLOSE); + LayoutDeviceIntSize result(sz.cx, sz.cy); + AddPaddingRect(&result, CAPTIONBUTTON_CLOSE); + return result; + } + + case StyleAppearance::MozWindowTitlebar: + case StyleAppearance::MozWindowTitlebarMaximized: { + LayoutDeviceIntSize result; + result.height = GetSystemMetrics(SM_CYCAPTION); + result.height += GetSystemMetrics(SM_CYFRAME); + result.height += GetSystemMetrics(SM_CXPADDEDBORDER); + // On Win8.1, we don't want this scaling, because Windows doesn't scale + // the non-client area of the window, and we can end up with ugly overlap + // of the window frame controls into the tab bar or content area. But on + // Win10, we render the window controls ourselves, and the result looks + // better if we do apply this scaling (particularly with themes such as + // DevEdition; see bug 1267636). + if (IsWin10OrLater()) { + ScaleForFrameDPI(&result, aFrame); + } + return result; + } + + case StyleAppearance::MozWindowButtonBox: + case StyleAppearance::MozWindowButtonBoxMaximized: { + if (gfxWindowsPlatform::GetPlatform()->DwmCompositionEnabled()) { + SIZE sz = nsUXThemeData::GetCommandButtonBoxMetrics(); + LayoutDeviceIntSize result(sz.cx, + sz.cy - GetSystemMetrics(SM_CYFRAME) - + GetSystemMetrics(SM_CXPADDEDBORDER)); + if (aAppearance == StyleAppearance::MozWindowButtonBoxMaximized) { + result.width += 1; + result.height -= 2; + } + return result; + } + break; + } + + default: + break; + } + + int32_t part, state; + nsresult rv = GetThemePartAndState(aFrame, aAppearance, part, state); + if (NS_FAILED(rv)) { + return {}; + } + + LayoutDeviceIntSize result; + rv = GetCachedMinimumWidgetSize(aFrame, theme, themeClass.value(), + aAppearance, part, state, sizeReq, &result); + ScaleForFrameDPI(&result, aFrame); + return result; +} + +NS_IMETHODIMP +nsNativeThemeWin::WidgetStateChanged(nsIFrame* aFrame, + StyleAppearance aAppearance, + nsAtom* aAttribute, bool* aShouldRepaint, + const nsAttrValue* aOldValue) { + // Some widget types just never change state. + if (aAppearance == StyleAppearance::Toolbox || + aAppearance == StyleAppearance::MozWinMediaToolbox || + aAppearance == StyleAppearance::MozWinCommunicationsToolbox || + aAppearance == StyleAppearance::MozWinBrowsertabbarToolbox || + aAppearance == StyleAppearance::Toolbar || + aAppearance == StyleAppearance::Progresschunk || + aAppearance == StyleAppearance::ProgressBar || + aAppearance == StyleAppearance::Tabpanels || + aAppearance == StyleAppearance::Tabpanel || + aAppearance == StyleAppearance::Separator || + aAppearance == StyleAppearance::MozWinBorderlessGlass) { + *aShouldRepaint = false; + return NS_OK; + } + + if (aAppearance == StyleAppearance::MozWindowTitlebar || + aAppearance == StyleAppearance::MozWindowTitlebarMaximized || + aAppearance == StyleAppearance::MozWindowButtonClose || + aAppearance == StyleAppearance::MozWindowButtonMinimize || + aAppearance == StyleAppearance::MozWindowButtonMaximize || + aAppearance == StyleAppearance::MozWindowButtonRestore) { + *aShouldRepaint = true; + return NS_OK; + } + + // We need to repaint the dropdown arrow in vista HTML combobox controls when + // the control is closed to get rid of the hover effect. + if ((aAppearance == StyleAppearance::Menulist || + aAppearance == StyleAppearance::MenulistButton || + aAppearance == StyleAppearance::MozMenulistArrowButton) && + nsNativeTheme::IsHTMLContent(aFrame)) { + *aShouldRepaint = true; + return NS_OK; + } + + // XXXdwh Not sure what can really be done here. Can at least guess for + // specific widgets that they're highly unlikely to have certain states. + // For example, a toolbar doesn't care about any states. + if (!aAttribute) { + // Hover/focus/active changed. Always repaint. + *aShouldRepaint = true; + } else { + // Check the attribute to see if it's relevant. + // disabled, checked, dlgtype, default, etc. + *aShouldRepaint = false; + if (aAttribute == nsGkAtoms::disabled || aAttribute == nsGkAtoms::checked || + aAttribute == nsGkAtoms::selected || + aAttribute == nsGkAtoms::visuallyselected || + aAttribute == nsGkAtoms::readonly || aAttribute == nsGkAtoms::open || + aAttribute == nsGkAtoms::menuactive || aAttribute == nsGkAtoms::focused) + *aShouldRepaint = true; + } + + return NS_OK; +} + +NS_IMETHODIMP +nsNativeThemeWin::ThemeChanged() { + nsUXThemeData::Invalidate(); + memset(mBorderCacheValid, 0, sizeof(mBorderCacheValid)); + memset(mMinimumWidgetSizeCacheValid, 0, sizeof(mMinimumWidgetSizeCacheValid)); + mGutterSizeCacheValid = false; + return NS_OK; +} + +bool nsNativeThemeWin::ThemeSupportsWidget(nsPresContext* aPresContext, + nsIFrame* aFrame, + StyleAppearance aAppearance) { + // XXXdwh We can go even further and call the API to ask if support exists for + // specific widgets. + + if (IsWidgetNonNative(aFrame, aAppearance) == NonNative::Always) { + return Theme::ThemeSupportsWidget(aPresContext, aFrame, aAppearance); + } + + HANDLE theme = nullptr; + if (aAppearance == StyleAppearance::CheckboxContainer) + theme = GetTheme(StyleAppearance::Checkbox); + else if (aAppearance == StyleAppearance::RadioContainer) + theme = GetTheme(StyleAppearance::Radio); + else + theme = GetTheme(aAppearance); + + if (theme || ClassicThemeSupportsWidget(aFrame, aAppearance)) + // turn off theming for some HTML widgets styled by the page + return (!IsWidgetStyled(aPresContext, aFrame, aAppearance)); + + return false; +} + +bool nsNativeThemeWin::WidgetIsContainer(StyleAppearance aAppearance) { + // XXXdwh At some point flesh all of this out. + if (aAppearance == StyleAppearance::MozMenulistArrowButton || + aAppearance == StyleAppearance::Radio || + aAppearance == StyleAppearance::Checkbox) + return false; + return true; +} + +bool nsNativeThemeWin::ThemeDrawsFocusForWidget(nsIFrame* aFrame, + StyleAppearance aAppearance) { + if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { + return Theme::ThemeDrawsFocusForWidget(aFrame, aAppearance); + } + switch (aAppearance) { + case StyleAppearance::Menulist: + case StyleAppearance::MenulistButton: + case StyleAppearance::Textarea: + case StyleAppearance::Textfield: + case StyleAppearance::NumberInput: + return true; + default: + return false; + } +} + +bool nsNativeThemeWin::ThemeNeedsComboboxDropmarker() { return true; } + +bool nsNativeThemeWin::WidgetAppearanceDependsOnWindowFocus( + StyleAppearance aAppearance) { + switch (aAppearance) { + case StyleAppearance::MozWindowTitlebar: + case StyleAppearance::MozWindowTitlebarMaximized: + case StyleAppearance::MozWindowButtonClose: + case StyleAppearance::MozWindowButtonMinimize: + case StyleAppearance::MozWindowButtonMaximize: + case StyleAppearance::MozWindowButtonRestore: + return true; + default: + return false; + } +} + +nsITheme::ThemeGeometryType nsNativeThemeWin::ThemeGeometryTypeForWidget( + nsIFrame* aFrame, StyleAppearance aAppearance) { + switch (aAppearance) { + case StyleAppearance::MozWindowButtonBox: + case StyleAppearance::MozWindowButtonBoxMaximized: + return eThemeGeometryTypeWindowButtons; + default: + return eThemeGeometryTypeUnknown; + } +} + +nsITheme::Transparency nsNativeThemeWin::GetWidgetTransparency( + nsIFrame* aFrame, StyleAppearance aAppearance) { + if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { + return Theme::GetWidgetTransparency(aFrame, aAppearance); + } + + switch (aAppearance) { + case StyleAppearance::MozWinBorderlessGlass: + case StyleAppearance::ProgressBar: + case StyleAppearance::Progresschunk: + case StyleAppearance::Range: + return eTransparent; + default: + break; + } + + HANDLE theme = GetTheme(aAppearance); + // For the classic theme we don't really have a way of knowing + if (!theme) { + // menu backgrounds which can't be themed are opaque + if (aAppearance == StyleAppearance::Menupopup) { + return eOpaque; + } + return eUnknownTransparency; + } + + int32_t part, state; + nsresult rv = GetThemePartAndState(aFrame, aAppearance, part, state); + // Fail conservatively + NS_ENSURE_SUCCESS(rv, eUnknownTransparency); + + if (part <= 0) { + // Not a real part code, so IsThemeBackgroundPartiallyTransparent may + // not work, so don't call it. + return eUnknownTransparency; + } + + if (IsThemeBackgroundPartiallyTransparent(theme, part, state)) + return eTransparent; + return eOpaque; +} + +/* Windows 9x/NT/2000/Classic XP Theme Support */ + +bool nsNativeThemeWin::ClassicThemeSupportsWidget(nsIFrame* aFrame, + StyleAppearance aAppearance) { + switch (aAppearance) { + case StyleAppearance::Menubar: + case StyleAppearance::Menupopup: + // Classic non-flat menus are handled almost entirely through CSS. + if (!nsUXThemeData::AreFlatMenusEnabled()) return false; + [[fallthrough]]; + case StyleAppearance::Button: + case StyleAppearance::NumberInput: + case StyleAppearance::Textfield: + case StyleAppearance::Textarea: + case StyleAppearance::Checkbox: + case StyleAppearance::Radio: + case StyleAppearance::Range: + case StyleAppearance::RangeThumb: + case StyleAppearance::Groupbox: + case StyleAppearance::Menulist: + case StyleAppearance::MenulistButton: + case StyleAppearance::MozMenulistArrowButton: + case StyleAppearance::SpinnerUpbutton: + case StyleAppearance::SpinnerDownbutton: + case StyleAppearance::Listbox: + case StyleAppearance::Treeview: + case StyleAppearance::ProgressBar: + case StyleAppearance::Progresschunk: + case StyleAppearance::Tab: + case StyleAppearance::Tabpanel: + case StyleAppearance::Tabpanels: + case StyleAppearance::Menuitem: + case StyleAppearance::Checkmenuitem: + case StyleAppearance::Radiomenuitem: + case StyleAppearance::Menucheckbox: + case StyleAppearance::Menuradio: + case StyleAppearance::Menuarrow: + case StyleAppearance::Menuseparator: + case StyleAppearance::Menuitemtext: + case StyleAppearance::MozWindowTitlebar: + case StyleAppearance::MozWindowTitlebarMaximized: + case StyleAppearance::MozWindowButtonClose: + case StyleAppearance::MozWindowButtonMinimize: + case StyleAppearance::MozWindowButtonMaximize: + case StyleAppearance::MozWindowButtonRestore: + case StyleAppearance::MozWindowButtonBox: + case StyleAppearance::MozWindowButtonBoxMaximized: + return true; + default: + return false; + } +} + +LayoutDeviceIntMargin nsNativeThemeWin::ClassicGetWidgetBorder( + nsDeviceContext* aContext, nsIFrame* aFrame, StyleAppearance aAppearance) { + LayoutDeviceIntMargin result; + switch (aAppearance) { + case StyleAppearance::Groupbox: + case StyleAppearance::Button: + result.top = result.left = result.bottom = result.right = 2; + break; + case StyleAppearance::Listbox: + case StyleAppearance::Treeview: + case StyleAppearance::Menulist: + case StyleAppearance::MenulistButton: + case StyleAppearance::Tab: + case StyleAppearance::NumberInput: + case StyleAppearance::Textfield: + case StyleAppearance::Textarea: + result.top = result.left = result.bottom = result.right = 2; + break; + case StyleAppearance::ProgressBar: + result.top = result.left = result.bottom = result.right = 1; + break; + case StyleAppearance::Menubar: + result.top = result.left = result.bottom = result.right = 0; + break; + case StyleAppearance::Menupopup: + result.top = result.left = result.bottom = result.right = 3; + break; + default: + result.top = result.bottom = result.left = result.right = 0; + break; + } + return result; +} + +bool nsNativeThemeWin::ClassicGetWidgetPadding(nsDeviceContext* aContext, + nsIFrame* aFrame, + StyleAppearance aAppearance, + LayoutDeviceIntMargin* aResult) { + switch (aAppearance) { + case StyleAppearance::Menuitem: + case StyleAppearance::Checkmenuitem: + case StyleAppearance::Radiomenuitem: { + int32_t part, state; + bool focused; + + if (NS_FAILED(ClassicGetThemePartAndState(aFrame, aAppearance, part, + state, focused))) + return false; + + if (part == 1) { // top-level menu + if (nsUXThemeData::AreFlatMenusEnabled() || !(state & DFCS_PUSHED)) { + (*aResult).top = (*aResult).bottom = (*aResult).left = + (*aResult).right = 2; + } else { + // make top-level menus look sunken when pushed in the Classic look + (*aResult).top = (*aResult).left = 3; + (*aResult).bottom = (*aResult).right = 1; + } + } else { + (*aResult).top = 0; + (*aResult).bottom = (*aResult).left = (*aResult).right = 2; + } + return true; + } + case StyleAppearance::ProgressBar: + (*aResult).top = (*aResult).left = (*aResult).bottom = (*aResult).right = + 1; + return true; + default: + return false; + } +} + +LayoutDeviceIntSize nsNativeThemeWin::ClassicGetMinimumWidgetSize( + nsIFrame* aFrame, StyleAppearance aAppearance) { + LayoutDeviceIntSize result; + switch (aAppearance) { + case StyleAppearance::Radio: + case StyleAppearance::Checkbox: + result.width = result.height = 13; + break; + case StyleAppearance::Menucheckbox: + case StyleAppearance::Menuradio: + case StyleAppearance::Menuarrow: + result.width = ::GetSystemMetrics(SM_CXMENUCHECK); + result.height = ::GetSystemMetrics(SM_CYMENUCHECK); + break; + case StyleAppearance::SpinnerUpbutton: + case StyleAppearance::SpinnerDownbutton: + result.width = ::GetSystemMetrics(SM_CXVSCROLL); + result.height = 8; // No good metrics available for this + break; + case StyleAppearance::RangeThumb: { + if (IsRangeHorizontal(aFrame)) { + result.width = 12; + result.height = 20; + } else { + result.width = 20; + result.height = 12; + } + break; + } + case StyleAppearance::MozMenulistArrowButton: + result.width = ::GetSystemMetrics(SM_CXVSCROLL); + break; + case StyleAppearance::Menulist: + case StyleAppearance::MenulistButton: + case StyleAppearance::Button: + case StyleAppearance::Groupbox: + case StyleAppearance::Listbox: + case StyleAppearance::Treeview: + case StyleAppearance::NumberInput: + case StyleAppearance::Textfield: + case StyleAppearance::Textarea: + case StyleAppearance::Progresschunk: + case StyleAppearance::ProgressBar: + case StyleAppearance::Tab: + case StyleAppearance::Tabpanel: + case StyleAppearance::Tabpanels: + // no minimum widget size + break; + case StyleAppearance::Menuseparator: { + result.width = 0; + result.height = 10; + break; + } + + case StyleAppearance::MozWindowTitlebarMaximized: + case StyleAppearance::MozWindowTitlebar: + result.height = + GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CYFRAME); + break; + case StyleAppearance::MozWindowButtonClose: + case StyleAppearance::MozWindowButtonMinimize: + case StyleAppearance::MozWindowButtonMaximize: + case StyleAppearance::MozWindowButtonRestore: + result.width = GetSystemMetrics(SM_CXSIZE); + result.height = GetSystemMetrics(SM_CYSIZE); + // XXX I have no idea why these caption metrics are always off, + // but they are. + result.width -= 2; + result.height -= 4; + if (aAppearance == StyleAppearance::MozWindowButtonMinimize) { + AddPaddingRect(&result, CAPTIONBUTTON_MINIMIZE); + } else if (aAppearance == StyleAppearance::MozWindowButtonMaximize || + aAppearance == StyleAppearance::MozWindowButtonRestore) { + AddPaddingRect(&result, CAPTIONBUTTON_RESTORE); + } else if (aAppearance == StyleAppearance::MozWindowButtonClose) { + AddPaddingRect(&result, CAPTIONBUTTON_CLOSE); + } + break; + + default: + break; + } + return result; +} + +nsresult nsNativeThemeWin::ClassicGetThemePartAndState( + nsIFrame* aFrame, StyleAppearance aAppearance, int32_t& aPart, + int32_t& aState, bool& aFocused) { + aFocused = false; + switch (aAppearance) { + case StyleAppearance::Button: { + aPart = DFC_BUTTON; + aState = DFCS_BUTTONPUSH; + aFocused = false; + + ElementState contentState = GetContentState(aFrame, aAppearance); + if (contentState.HasState(ElementState::DISABLED)) { + aState |= DFCS_INACTIVE; + } else if (IsOpenButton(aFrame)) { + aState |= DFCS_PUSHED; + } else if (IsCheckedButton(aFrame)) { + aState |= DFCS_CHECKED; + } else { + if (contentState.HasAllStates(ElementState::ACTIVE | + ElementState::HOVER)) { + aState |= DFCS_PUSHED; + // The down state is flat if the button is focusable + if (aFrame->StyleUI()->UserFocus() == StyleUserFocus::Normal) { + if (!aFrame->GetContent()->IsHTMLElement()) aState |= DFCS_FLAT; + + aFocused = true; + } + } + // On Windows, focused buttons are always drawn as such by the native + // theme, that's why we check ElementState::FOCUS instead of + // ElementState::FOCUSRING. + if (contentState.HasState(ElementState::FOCUS) || + (aState == DFCS_BUTTONPUSH && IsDefaultButton(aFrame))) { + aFocused = true; + } + } + + return NS_OK; + } + case StyleAppearance::Checkbox: + case StyleAppearance::Radio: { + ElementState contentState = GetContentState(aFrame, aAppearance); + aFocused = false; + + aPart = DFC_BUTTON; + aState = 0; + nsIContent* content = aFrame->GetContent(); + bool isCheckbox = (aAppearance == StyleAppearance::Checkbox); + bool isChecked = contentState.HasState(ElementState::CHECKED); + bool isIndeterminate = contentState.HasState(ElementState::INDETERMINATE); + + if (isCheckbox) { + // indeterminate state takes precedence over checkedness. + if (isIndeterminate) { + aState = DFCS_BUTTON3STATE | DFCS_CHECKED; + } else { + aState = DFCS_BUTTONCHECK; + } + } else { + aState = DFCS_BUTTONRADIO; + } + if (isChecked) { + aState |= DFCS_CHECKED; + } + + if (!content->IsXULElement() && + contentState.HasState(ElementState::FOCUSRING)) { + aFocused = true; + } + + if (contentState.HasState(ElementState::DISABLED)) { + aState |= DFCS_INACTIVE; + } else if (contentState.HasAllStates(ElementState::ACTIVE | + ElementState::HOVER)) { + aState |= DFCS_PUSHED; + } + + return NS_OK; + } + case StyleAppearance::Menuitem: + case StyleAppearance::Checkmenuitem: + case StyleAppearance::Radiomenuitem: { + ElementState elementState = GetContentState(aFrame, aAppearance); + + auto* menu = dom::XULButtonElement::FromNodeOrNull(aFrame->GetContent()); + + const bool isTopLevel = IsTopLevelMenu(aFrame); + const bool isOpen = menu && menu->IsMenuPopupOpen(); + + // We indicate top-level-ness using aPart. 0 is a normal menu item, + // 1 is a top-level menu item. The state of the item is composed of + // DFCS_* flags only. + aPart = 0; + aState = 0; + + if (elementState.HasState(ElementState::DISABLED)) { + aState |= DFCS_INACTIVE; + } + + if (isTopLevel) { + aPart = 1; + if (isOpen) { + aState |= DFCS_PUSHED; + } + } + + if (IsMenuActive(aFrame, aAppearance)) { + aState |= DFCS_HOT; + } + + return NS_OK; + } + case StyleAppearance::Menucheckbox: + case StyleAppearance::Menuradio: + case StyleAppearance::Menuarrow: { + aState = 0; + ElementState elementState = GetContentState(aFrame, aAppearance); + + if (elementState.HasState(ElementState::DISABLED)) { + aState |= DFCS_INACTIVE; + } + if (IsMenuActive(aFrame, aAppearance)) aState |= DFCS_HOT; + + if (aAppearance == StyleAppearance::Menucheckbox || + aAppearance == StyleAppearance::Menuradio) { + if (IsCheckedButton(aFrame)) aState |= DFCS_CHECKED; + } else if (IsFrameRTL(aFrame)) { + aState |= DFCS_RTL; + } + return NS_OK; + } + case StyleAppearance::Listbox: + case StyleAppearance::Treeview: + case StyleAppearance::NumberInput: + case StyleAppearance::Textfield: + case StyleAppearance::Textarea: + case StyleAppearance::Menulist: + case StyleAppearance::MenulistButton: + case StyleAppearance::Range: + case StyleAppearance::RangeThumb: + case StyleAppearance::Progresschunk: + case StyleAppearance::ProgressBar: + case StyleAppearance::Tab: + case StyleAppearance::Tabpanel: + case StyleAppearance::Tabpanels: + case StyleAppearance::Menubar: + case StyleAppearance::Menupopup: + case StyleAppearance::Groupbox: + // these don't use DrawFrameControl + return NS_OK; + case StyleAppearance::MozMenulistArrowButton: { + aPart = DFC_SCROLL; + aState = DFCS_SCROLLCOMBOBOX; + + nsIFrame* parentFrame = aFrame->GetParent(); + // HTML select and XUL menulist dropdown buttons get state from the + // parent. + aFrame = parentFrame; + + ElementState elementState = GetContentState(aFrame, aAppearance); + + if (elementState.HasState(ElementState::DISABLED)) { + aState |= DFCS_INACTIVE; + return NS_OK; + } + + bool isOpen = false; + if (nsComboboxControlFrame* ccf = do_QueryFrame(aFrame)) { + isOpen = ccf->IsDroppedDown(); + } else { + isOpen = IsOpenButton(aFrame); + } + + // XXX Button should look active until the mouse is released, but + // without making it look active when the popup is clicked. + if (isOpen) { + return NS_OK; + } + + // Dropdown button active state doesn't need :hover. + if (elementState.HasState(ElementState::ACTIVE)) + aState |= DFCS_PUSHED | DFCS_FLAT; + + return NS_OK; + } + case StyleAppearance::SpinnerUpbutton: + case StyleAppearance::SpinnerDownbutton: { + ElementState contentState = GetContentState(aFrame, aAppearance); + + aPart = DFC_SCROLL; + switch (aAppearance) { + case StyleAppearance::SpinnerUpbutton: + aState = DFCS_SCROLLUP; + break; + case StyleAppearance::SpinnerDownbutton: + aState = DFCS_SCROLLDOWN; + break; + default: + break; + } + + if (contentState.HasState(ElementState::DISABLED)) { + aState |= DFCS_INACTIVE; + } else { + if (contentState.HasAllStates(ElementState::HOVER | + ElementState::ACTIVE)) + aState |= DFCS_PUSHED; + } + + return NS_OK; + } + case StyleAppearance::Menuseparator: + aPart = 0; + aState = 0; + return NS_OK; + case StyleAppearance::MozWindowTitlebar: + aPart = mozilla::widget::themeconst::WP_CAPTION; + aState = GetTopLevelWindowActiveState(aFrame); + return NS_OK; + case StyleAppearance::MozWindowTitlebarMaximized: + aPart = mozilla::widget::themeconst::WP_MAXCAPTION; + aState = GetTopLevelWindowActiveState(aFrame); + return NS_OK; + case StyleAppearance::MozWindowButtonClose: + aPart = DFC_CAPTION; + aState = DFCS_CAPTIONCLOSE | GetClassicWindowFrameButtonState( + GetContentState(aFrame, aAppearance)); + return NS_OK; + case StyleAppearance::MozWindowButtonMinimize: + aPart = DFC_CAPTION; + aState = DFCS_CAPTIONMIN | GetClassicWindowFrameButtonState( + GetContentState(aFrame, aAppearance)); + return NS_OK; + case StyleAppearance::MozWindowButtonMaximize: + aPart = DFC_CAPTION; + aState = DFCS_CAPTIONMAX | GetClassicWindowFrameButtonState( + GetContentState(aFrame, aAppearance)); + return NS_OK; + case StyleAppearance::MozWindowButtonRestore: + aPart = DFC_CAPTION; + aState = DFCS_CAPTIONRESTORE | GetClassicWindowFrameButtonState( + GetContentState(aFrame, aAppearance)); + return NS_OK; + default: + return NS_ERROR_FAILURE; + } +} + +// Draw classic Windows tab +// (no system API for this, but DrawEdge can draw all the parts of a tab) +static void DrawTab(HDC hdc, const RECT& R, int32_t aPosition, bool aSelected, + bool aDrawLeft, bool aDrawRight) { + int32_t leftFlag, topFlag, rightFlag, lightFlag, shadeFlag; + RECT topRect, sideRect, bottomRect, lightRect, shadeRect; + int32_t selectedOffset, lOffset, rOffset; + + selectedOffset = aSelected ? 1 : 0; + lOffset = aDrawLeft ? 2 : 0; + rOffset = aDrawRight ? 2 : 0; + + // Get info for tab orientation/position (Left, Top, Right, Bottom) + switch (aPosition) { + case BF_LEFT: + leftFlag = BF_TOP; + topFlag = BF_LEFT; + rightFlag = BF_BOTTOM; + lightFlag = BF_DIAGONAL_ENDTOPRIGHT; + shadeFlag = BF_DIAGONAL_ENDBOTTOMRIGHT; + + ::SetRect(&topRect, R.left, R.top + lOffset, R.right, R.bottom - rOffset); + ::SetRect(&sideRect, R.left + 2, R.top, R.right - 2 + selectedOffset, + R.bottom); + ::SetRect(&bottomRect, R.right - 2, R.top, R.right, R.bottom); + ::SetRect(&lightRect, R.left, R.top, R.left + 3, R.top + 3); + ::SetRect(&shadeRect, R.left + 1, R.bottom - 2, R.left + 2, R.bottom - 1); + break; + case BF_TOP: + leftFlag = BF_LEFT; + topFlag = BF_TOP; + rightFlag = BF_RIGHT; + lightFlag = BF_DIAGONAL_ENDTOPRIGHT; + shadeFlag = BF_DIAGONAL_ENDBOTTOMRIGHT; + + ::SetRect(&topRect, R.left + lOffset, R.top, R.right - rOffset, R.bottom); + ::SetRect(&sideRect, R.left, R.top + 2, R.right, + R.bottom - 1 + selectedOffset); + ::SetRect(&bottomRect, R.left, R.bottom - 1, R.right, R.bottom); + ::SetRect(&lightRect, R.left, R.top, R.left + 3, R.top + 3); + ::SetRect(&shadeRect, R.right - 2, R.top + 1, R.right - 1, R.top + 2); + break; + case BF_RIGHT: + leftFlag = BF_TOP; + topFlag = BF_RIGHT; + rightFlag = BF_BOTTOM; + lightFlag = BF_DIAGONAL_ENDTOPLEFT; + shadeFlag = BF_DIAGONAL_ENDBOTTOMLEFT; + + ::SetRect(&topRect, R.left, R.top + lOffset, R.right, R.bottom - rOffset); + ::SetRect(&sideRect, R.left + 2 - selectedOffset, R.top, R.right - 2, + R.bottom); + ::SetRect(&bottomRect, R.left, R.top, R.left + 2, R.bottom); + ::SetRect(&lightRect, R.right - 3, R.top, R.right - 1, R.top + 2); + ::SetRect(&shadeRect, R.right - 2, R.bottom - 3, R.right, R.bottom - 1); + break; + case BF_BOTTOM: + leftFlag = BF_LEFT; + topFlag = BF_BOTTOM; + rightFlag = BF_RIGHT; + lightFlag = BF_DIAGONAL_ENDTOPLEFT; + shadeFlag = BF_DIAGONAL_ENDBOTTOMLEFT; + + ::SetRect(&topRect, R.left + lOffset, R.top, R.right - rOffset, R.bottom); + ::SetRect(&sideRect, R.left, R.top + 2 - selectedOffset, R.right, + R.bottom - 2); + ::SetRect(&bottomRect, R.left, R.top, R.right, R.top + 2); + ::SetRect(&lightRect, R.left, R.bottom - 3, R.left + 2, R.bottom - 1); + ::SetRect(&shadeRect, R.right - 2, R.bottom - 3, R.right, R.bottom - 1); + break; + default: + MOZ_CRASH(); + } + + // Background + ::FillRect(hdc, &R, (HBRUSH)(COLOR_3DFACE + 1)); + + // Tab "Top" + ::DrawEdge(hdc, &topRect, EDGE_RAISED, BF_SOFT | topFlag); + + // Tab "Bottom" + if (!aSelected) ::DrawEdge(hdc, &bottomRect, EDGE_RAISED, BF_SOFT | topFlag); + + // Tab "Sides" + if (!aDrawLeft) leftFlag = 0; + if (!aDrawRight) rightFlag = 0; + ::DrawEdge(hdc, &sideRect, EDGE_RAISED, BF_SOFT | leftFlag | rightFlag); + + // Tab Diagonal Corners + if (aDrawLeft) ::DrawEdge(hdc, &lightRect, EDGE_RAISED, BF_SOFT | lightFlag); + + if (aDrawRight) ::DrawEdge(hdc, &shadeRect, EDGE_RAISED, BF_SOFT | shadeFlag); +} + +static void DrawMenuImage(HDC hdc, const RECT& rc, int32_t aComponent, + uint32_t aColor) { + // This procedure creates a memory bitmap to contain the check mark, draws + // it into the bitmap (it is a mask image), then composes it onto the menu + // item in appropriate colors. + HDC hMemoryDC = ::CreateCompatibleDC(hdc); + if (hMemoryDC) { + // XXXjgr We should ideally be caching these, but we wont be notified when + // they change currently, so we can't do so easily. Same for the bitmap. + int checkW = ::GetSystemMetrics(SM_CXMENUCHECK); + int checkH = ::GetSystemMetrics(SM_CYMENUCHECK); + + HBITMAP hMonoBitmap = ::CreateBitmap(checkW, checkH, 1, 1, nullptr); + if (hMonoBitmap) { + HBITMAP hPrevBitmap = (HBITMAP)::SelectObject(hMemoryDC, hMonoBitmap); + if (hPrevBitmap) { + // XXXjgr This will go pear-shaped if the image is bigger than the + // provided rect. What should we do? + RECT imgRect = {0, 0, checkW, checkH}; + POINT imgPos = {rc.left + (rc.right - rc.left - checkW) / 2, + rc.top + (rc.bottom - rc.top - checkH) / 2}; + + // XXXzeniko Windows renders these 1px lower than you'd expect + if (aComponent == DFCS_MENUCHECK || aComponent == DFCS_MENUBULLET) + imgPos.y++; + + ::DrawFrameControl(hMemoryDC, &imgRect, DFC_MENU, aComponent); + COLORREF oldTextCol = ::SetTextColor(hdc, 0x00000000); + COLORREF oldBackCol = ::SetBkColor(hdc, 0x00FFFFFF); + ::BitBlt(hdc, imgPos.x, imgPos.y, checkW, checkH, hMemoryDC, 0, 0, + SRCAND); + ::SetTextColor(hdc, ::GetSysColor(aColor)); + ::SetBkColor(hdc, 0x00000000); + ::BitBlt(hdc, imgPos.x, imgPos.y, checkW, checkH, hMemoryDC, 0, 0, + SRCPAINT); + ::SetTextColor(hdc, oldTextCol); + ::SetBkColor(hdc, oldBackCol); + ::SelectObject(hMemoryDC, hPrevBitmap); + } + ::DeleteObject(hMonoBitmap); + } + ::DeleteDC(hMemoryDC); + } +} + +void nsNativeThemeWin::DrawCheckedRect(HDC hdc, const RECT& rc, int32_t fore, + int32_t back, HBRUSH defaultBack) { + static WORD patBits[8] = {0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55}; + + HBITMAP patBmp = ::CreateBitmap(8, 8, 1, 1, patBits); + if (patBmp) { + HBRUSH brush = (HBRUSH)::CreatePatternBrush(patBmp); + if (brush) { + COLORREF oldForeColor = ::SetTextColor(hdc, ::GetSysColor(fore)); + COLORREF oldBackColor = ::SetBkColor(hdc, ::GetSysColor(back)); + POINT vpOrg; + + ::UnrealizeObject(brush); + ::GetViewportOrgEx(hdc, &vpOrg); + ::SetBrushOrgEx(hdc, vpOrg.x + rc.left, vpOrg.y + rc.top, nullptr); + HBRUSH oldBrush = (HBRUSH)::SelectObject(hdc, brush); + ::FillRect(hdc, &rc, brush); + ::SetTextColor(hdc, oldForeColor); + ::SetBkColor(hdc, oldBackColor); + ::SelectObject(hdc, oldBrush); + ::DeleteObject(brush); + } else + ::FillRect(hdc, &rc, defaultBack); + + ::DeleteObject(patBmp); + } +} + +nsresult nsNativeThemeWin::ClassicDrawWidgetBackground( + gfxContext* aContext, nsIFrame* aFrame, StyleAppearance aAppearance, + const nsRect& aRect, const nsRect& aDirtyRect) { + int32_t part, state; + bool focused; + nsresult rv; + rv = ClassicGetThemePartAndState(aFrame, aAppearance, part, state, focused); + if (NS_FAILED(rv)) return rv; + + if (AssumeThemePartAndStateAreTransparent(part, state)) { + return NS_OK; + } + + gfxFloat p2a = gfxFloat(aFrame->PresContext()->AppUnitsPerDevPixel()); + RECT widgetRect; + gfxRect tr(aRect.X(), aRect.Y(), aRect.Width(), aRect.Height()), + dr(aDirtyRect.X(), aDirtyRect.Y(), aDirtyRect.Width(), + aDirtyRect.Height()); + + tr.Scale(1.0 / p2a); + dr.Scale(1.0 / p2a); + + gfxWindowsNativeDrawing nativeDrawing( + aContext, dr, GetWidgetNativeDrawingFlags(aAppearance)); + +RENDER_AGAIN: + + HDC hdc = nativeDrawing.BeginNativeDrawing(); + if (!hdc) return NS_ERROR_FAILURE; + + nativeDrawing.TransformToNativeRect(tr, widgetRect); + + rv = NS_OK; + switch (aAppearance) { + // Draw button + case StyleAppearance::Button: { + if (focused) { + // draw dark button focus border first + HBRUSH brush; + brush = ::GetSysColorBrush(COLOR_3DDKSHADOW); + if (brush) ::FrameRect(hdc, &widgetRect, brush); + InflateRect(&widgetRect, -1, -1); + } + [[fallthrough]]; + } + // Draw controls supported by DrawFrameControl + case StyleAppearance::Checkbox: + case StyleAppearance::Radio: + case StyleAppearance::SpinnerUpbutton: + case StyleAppearance::SpinnerDownbutton: + case StyleAppearance::MozMenulistArrowButton: { + int32_t oldTA; + // setup DC to make DrawFrameControl draw correctly + oldTA = ::SetTextAlign(hdc, TA_TOP | TA_LEFT | TA_NOUPDATECP); + ::DrawFrameControl(hdc, &widgetRect, part, state); + ::SetTextAlign(hdc, oldTA); + break; + } + // Draw controls with 2px 3D inset border + case StyleAppearance::NumberInput: + case StyleAppearance::Textfield: + case StyleAppearance::Textarea: + case StyleAppearance::Listbox: + case StyleAppearance::Menulist: + case StyleAppearance::MenulistButton: { + // Draw inset edge + ::DrawEdge(hdc, &widgetRect, EDGE_SUNKEN, BF_RECT | BF_ADJUST); + + ElementState elementState = GetContentState(aFrame, aAppearance); + + // Fill in background + + if (elementState.HasState(ElementState::DISABLED) || + (aFrame->GetContent()->IsXULElement() && IsReadOnly(aFrame))) + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_BTNFACE + 1)); + else + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_WINDOW + 1)); + + break; + } + case StyleAppearance::Treeview: { + // Draw inset edge + ::DrawEdge(hdc, &widgetRect, EDGE_SUNKEN, BF_RECT | BF_ADJUST); + + // Fill in window color background + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_WINDOW + 1)); + + break; + } + case StyleAppearance::Groupbox: + ::DrawEdge(hdc, &widgetRect, EDGE_ETCHED, BF_RECT | BF_ADJUST); + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_BTNFACE + 1)); + break; + // Draw 3D face background controls + case StyleAppearance::ProgressBar: + // Draw 3D border + ::DrawEdge(hdc, &widgetRect, BDR_SUNKENOUTER, BF_RECT | BF_MIDDLE); + InflateRect(&widgetRect, -1, -1); + [[fallthrough]]; + case StyleAppearance::Tabpanel: { + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_BTNFACE + 1)); + break; + } + case StyleAppearance::RangeThumb: { + ElementState elementState = GetContentState(aFrame, aAppearance); + + ::DrawEdge(hdc, &widgetRect, EDGE_RAISED, + BF_RECT | BF_SOFT | BF_MIDDLE | BF_ADJUST); + if (elementState.HasState(ElementState::DISABLED)) { + DrawCheckedRect(hdc, widgetRect, COLOR_3DFACE, COLOR_3DHILIGHT, + (HBRUSH)COLOR_3DHILIGHT); + } + + break; + } + // Draw scale track background + case StyleAppearance::Range: { + const int32_t trackWidth = 4; + // When rounding is necessary, we round the position of the track + // away from the chevron of the thumb to make it look better. + if (IsRangeHorizontal(aFrame)) { + widgetRect.top += (widgetRect.bottom - widgetRect.top - trackWidth) / 2; + widgetRect.bottom = widgetRect.top + trackWidth; + } else { + if (!IsFrameRTL(aFrame)) { + widgetRect.left += + (widgetRect.right - widgetRect.left - trackWidth) / 2; + widgetRect.right = widgetRect.left + trackWidth; + } else { + widgetRect.right -= + (widgetRect.right - widgetRect.left - trackWidth) / 2; + widgetRect.left = widgetRect.right - trackWidth; + } + } + + ::DrawEdge(hdc, &widgetRect, EDGE_SUNKEN, BF_RECT | BF_ADJUST); + ::FillRect(hdc, &widgetRect, (HBRUSH)GetStockObject(GRAY_BRUSH)); + + break; + } + case StyleAppearance::Progresschunk: { + nsIFrame* stateFrame = aFrame->GetParent(); + ElementState elementState = GetContentState(stateFrame, aAppearance); + + const bool indeterminate = + elementState.HasState(ElementState::INDETERMINATE); + bool vertical = IsVerticalProgress(stateFrame); + + nsIContent* content = aFrame->GetContent(); + if (!indeterminate || !content) { + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_HIGHLIGHT + 1)); + break; + } + + RECT overlayRect = CalculateProgressOverlayRect( + aFrame, &widgetRect, vertical, indeterminate, true); + + ::FillRect(hdc, &overlayRect, (HBRUSH)(COLOR_HIGHLIGHT + 1)); + + if (!QueueAnimatedContentForRefresh(aFrame->GetContent(), 30)) { + NS_WARNING("unable to animate progress widget!"); + } + break; + } + + // Draw Tab + case StyleAppearance::Tab: { + DrawTab(hdc, widgetRect, IsBottomTab(aFrame) ? BF_BOTTOM : BF_TOP, + IsSelectedTab(aFrame), !IsRightToSelectedTab(aFrame), + !IsLeftToSelectedTab(aFrame)); + + break; + } + case StyleAppearance::Tabpanels: + ::DrawEdge(hdc, &widgetRect, EDGE_RAISED, + BF_SOFT | BF_MIDDLE | BF_LEFT | BF_RIGHT | BF_BOTTOM); + + break; + case StyleAppearance::Menubar: + break; + case StyleAppearance::Menupopup: + NS_ASSERTION(nsUXThemeData::AreFlatMenusEnabled(), + "Classic menus are styled entirely through CSS"); + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_MENU + 1)); + ::FrameRect(hdc, &widgetRect, ::GetSysColorBrush(COLOR_BTNSHADOW)); + break; + case StyleAppearance::Menuitem: + case StyleAppearance::Checkmenuitem: + case StyleAppearance::Radiomenuitem: + // part == 0 for normal items + // part == 1 for top-level menu items + if (nsUXThemeData::AreFlatMenusEnabled()) { + // Not disabled and hot/pushed. + if ((state & (DFCS_HOT | DFCS_PUSHED)) != 0) { + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_MENUHILIGHT + 1)); + ::FrameRect(hdc, &widgetRect, ::GetSysColorBrush(COLOR_HIGHLIGHT)); + } + } else { + if (part == 1) { + if ((state & DFCS_INACTIVE) == 0) { + if ((state & DFCS_PUSHED) != 0) { + ::DrawEdge(hdc, &widgetRect, BDR_SUNKENOUTER, BF_RECT); + } else if ((state & DFCS_HOT) != 0) { + ::DrawEdge(hdc, &widgetRect, BDR_RAISEDINNER, BF_RECT); + } + } + } else { + if ((state & (DFCS_HOT | DFCS_PUSHED)) != 0) { + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_HIGHLIGHT + 1)); + } + } + } + break; + case StyleAppearance::Menucheckbox: + case StyleAppearance::Menuradio: + if (!(state & DFCS_CHECKED)) break; // nothin' to do + [[fallthrough]]; + case StyleAppearance::Menuarrow: { + uint32_t color = COLOR_MENUTEXT; + if ((state & DFCS_INACTIVE)) + color = COLOR_GRAYTEXT; + else if ((state & DFCS_HOT)) + color = COLOR_HIGHLIGHTTEXT; + + if (aAppearance == StyleAppearance::Menucheckbox) + DrawMenuImage(hdc, widgetRect, DFCS_MENUCHECK, color); + else if (aAppearance == StyleAppearance::Menuradio) + DrawMenuImage(hdc, widgetRect, DFCS_MENUBULLET, color); + else if (aAppearance == StyleAppearance::Menuarrow) + DrawMenuImage(hdc, widgetRect, + (state & DFCS_RTL) ? DFCS_MENUARROWRIGHT : DFCS_MENUARROW, + color); + break; + } + case StyleAppearance::Menuseparator: { + // separators are offset by a bit (see menu.css) + widgetRect.left++; + widgetRect.right--; + + // This magic number is brought to you by the value in menu.css + widgetRect.top += 4; + // Our rectangles are 1 pixel high (see border size in menu.css) + widgetRect.bottom = widgetRect.top + 1; + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_3DSHADOW + 1)); + widgetRect.top++; + widgetRect.bottom++; + ::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_3DHILIGHT + 1)); + break; + } + + case StyleAppearance::MozWindowTitlebar: + case StyleAppearance::MozWindowTitlebarMaximized: { + RECT rect = widgetRect; + int32_t offset = GetSystemMetrics(SM_CXFRAME); + + // first fill the area to the color of the window background + ::FillRect(hdc, &rect, (HBRUSH)(COLOR_3DFACE + 1)); + + // inset the caption area so it doesn't overflow. + rect.top += offset; + // if enabled, draw a gradient titlebar background, otherwise + // fill with a solid color. + BOOL bFlag = TRUE; + SystemParametersInfo(SPI_GETGRADIENTCAPTIONS, 0, &bFlag, 0); + if (!bFlag) { + if (state == mozilla::widget::themeconst::FS_ACTIVE) + ::FillRect(hdc, &rect, (HBRUSH)(COLOR_ACTIVECAPTION + 1)); + else + ::FillRect(hdc, &rect, (HBRUSH)(COLOR_INACTIVECAPTION + 1)); + } else { + DWORD startColor, endColor; + if (state == mozilla::widget::themeconst::FS_ACTIVE) { + startColor = GetSysColor(COLOR_ACTIVECAPTION); + endColor = GetSysColor(COLOR_GRADIENTACTIVECAPTION); + } else { + startColor = GetSysColor(COLOR_INACTIVECAPTION); + endColor = GetSysColor(COLOR_GRADIENTINACTIVECAPTION); + } + + TRIVERTEX vertex[2]; + vertex[0].x = rect.left; + vertex[0].y = rect.top; + vertex[0].Red = GetRValue(startColor) << 8; + vertex[0].Green = GetGValue(startColor) << 8; + vertex[0].Blue = GetBValue(startColor) << 8; + vertex[0].Alpha = 0; + + vertex[1].x = rect.right; + vertex[1].y = rect.bottom; + vertex[1].Red = GetRValue(endColor) << 8; + vertex[1].Green = GetGValue(endColor) << 8; + vertex[1].Blue = GetBValue(endColor) << 8; + vertex[1].Alpha = 0; + + GRADIENT_RECT gRect; + gRect.UpperLeft = 0; + gRect.LowerRight = 1; + // available on win2k & up + GradientFill(hdc, vertex, 2, &gRect, 1, GRADIENT_FILL_RECT_H); + } + + if (aAppearance == StyleAppearance::MozWindowTitlebar) { + // frame things up with a top raised border. + DrawEdge(hdc, &widgetRect, EDGE_RAISED, BF_TOP); + } + break; + } + + case StyleAppearance::MozWindowButtonClose: + case StyleAppearance::MozWindowButtonMinimize: + case StyleAppearance::MozWindowButtonMaximize: + case StyleAppearance::MozWindowButtonRestore: { + if (aAppearance == StyleAppearance::MozWindowButtonMinimize) { + OffsetBackgroundRect(widgetRect, CAPTIONBUTTON_MINIMIZE); + } else if (aAppearance == StyleAppearance::MozWindowButtonMaximize || + aAppearance == StyleAppearance::MozWindowButtonRestore) { + OffsetBackgroundRect(widgetRect, CAPTIONBUTTON_RESTORE); + } else if (aAppearance == StyleAppearance::MozWindowButtonClose) { + OffsetBackgroundRect(widgetRect, CAPTIONBUTTON_CLOSE); + } + int32_t oldTA = SetTextAlign(hdc, TA_TOP | TA_LEFT | TA_NOUPDATECP); + DrawFrameControl(hdc, &widgetRect, part, state); + SetTextAlign(hdc, oldTA); + break; + } + + default: + rv = NS_ERROR_FAILURE; + break; + } + + nativeDrawing.EndNativeDrawing(); + + if (NS_FAILED(rv)) return rv; + + if (nativeDrawing.ShouldRenderAgain()) goto RENDER_AGAIN; + + nativeDrawing.PaintToContext(); + + return rv; +} + +uint32_t nsNativeThemeWin::GetWidgetNativeDrawingFlags( + StyleAppearance aAppearance) { + switch (aAppearance) { + case StyleAppearance::Button: + case StyleAppearance::NumberInput: + case StyleAppearance::Textfield: + case StyleAppearance::Textarea: + case StyleAppearance::Menulist: + case StyleAppearance::MenulistButton: + return gfxWindowsNativeDrawing::CANNOT_DRAW_TO_COLOR_ALPHA | + gfxWindowsNativeDrawing::CAN_AXIS_ALIGNED_SCALE | + gfxWindowsNativeDrawing::CANNOT_COMPLEX_TRANSFORM; + + // the dropdown button /almost/ renders correctly with scaling, + // except that the graphic in the dropdown button (the downward arrow) + // doesn't get scaled up. + case StyleAppearance::MozMenulistArrowButton: + // these are definitely no; they're all graphics that don't get scaled up + case StyleAppearance::Checkbox: + case StyleAppearance::Radio: + case StyleAppearance::Groupbox: + case StyleAppearance::Checkmenuitem: + case StyleAppearance::Radiomenuitem: + case StyleAppearance::Menucheckbox: + case StyleAppearance::Menuradio: + case StyleAppearance::Menuarrow: + return gfxWindowsNativeDrawing::CANNOT_DRAW_TO_COLOR_ALPHA | + gfxWindowsNativeDrawing::CANNOT_AXIS_ALIGNED_SCALE | + gfxWindowsNativeDrawing::CANNOT_COMPLEX_TRANSFORM; + + // need to check these others + default: + return gfxWindowsNativeDrawing::CANNOT_DRAW_TO_COLOR_ALPHA | + gfxWindowsNativeDrawing::CANNOT_AXIS_ALIGNED_SCALE | + gfxWindowsNativeDrawing::CANNOT_COMPLEX_TRANSFORM; + } +} + +} // namespace mozilla::widget + +/////////////////////////////////////////// +// Creation Routine +/////////////////////////////////////////// + +already_AddRefed<Theme> do_CreateNativeThemeDoNotUseDirectly() { + return do_AddRef(new nsNativeThemeWin()); +} |