gecko-dev/widget/nsNativeBasicTheme.cpp

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/* -*- 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 "nsNativeBasicTheme.h"
#include "gfxBlur.h"
#include "mozilla/dom/Document.h"
#include "mozilla/gfx/Rect.h"
#include "mozilla/gfx/Types.h"
#include "mozilla/gfx/Filters.h"
#include "nsCSSColorUtils.h"
#include "nsCSSRendering.h"
#include "nsLayoutUtils.h"
#include "PathHelpers.h"
using namespace mozilla;
using namespace mozilla::widget;
using namespace mozilla::gfx;
NS_IMPL_ISUPPORTS_INHERITED(nsNativeBasicTheme, nsNativeTheme, nsITheme)
/* static */
auto nsNativeBasicTheme::GetDPIRatio(nsIFrame* aFrame) -> DPIRatio {
return DPIRatio(float(AppUnitsPerCSSPixel()) /
aFrame->PresContext()
->DeviceContext()
->AppUnitsPerDevPixelAtUnitFullZoom());
}
/* static */
bool nsNativeBasicTheme::IsDateTimeResetButton(nsIFrame* aFrame) {
if (!aFrame) {
return false;
}
nsIFrame* parent = aFrame->GetParent();
if (parent && (parent = parent->GetParent()) &&
(parent = parent->GetParent())) {
nsDateTimeControlFrame* dateTimeFrame = do_QueryFrame(parent);
if (dateTimeFrame) {
return true;
}
}
return false;
}
/* static */
bool nsNativeBasicTheme::IsDateTimeTextField(nsIFrame* aFrame) {
nsDateTimeControlFrame* dateTimeFrame = do_QueryFrame(aFrame);
return dateTimeFrame;
}
/* static */
bool nsNativeBasicTheme::IsColorPickerButton(nsIFrame* aFrame) {
nsColorControlFrame* colorPickerButton = do_QueryFrame(aFrame);
return colorPickerButton;
}
/* static */
LayoutDeviceRect nsNativeBasicTheme::FixAspectRatio(
const LayoutDeviceRect& aRect) {
// Checkbox and radio need to preserve aspect-ratio for compat.
LayoutDeviceRect rect(aRect);
if (rect.width == rect.height) {
return rect;
}
if (rect.width > rect.height) {
auto diff = rect.width - rect.height;
rect.width = rect.height;
rect.x += diff / 2;
} else {
auto diff = rect.height - rect.width;
rect.height = rect.width;
rect.y += diff / 2;
}
return rect;
}
/* static */
void nsNativeBasicTheme::GetFocusStrokeRect(DrawTarget* aDrawTarget,
LayoutDeviceRect& aFocusRect,
LayoutDeviceCoord aOffset,
const LayoutDeviceCoord aRadius,
LayoutDeviceCoord aFocusWidth,
RefPtr<Path>& aOutRect) {
RectCornerRadii radii(aRadius, aRadius, aRadius, aRadius);
aFocusRect.y -= aOffset;
aFocusRect.x -= aOffset;
aFocusRect.width += 2.0f * aOffset;
aFocusRect.height += 2.0f * aOffset;
// Deflate the rect by half the border width, so that the middle of the
// stroke fills exactly the area we want to fill and not more.
LayoutDeviceRect focusRect(aFocusRect);
focusRect.Deflate(aFocusWidth * 0.5f);
aOutRect =
MakePathForRoundedRect(*aDrawTarget, focusRect.ToUnknownRect(), radii);
}
std::pair<sRGBColor, sRGBColor> nsNativeBasicTheme::ComputeCheckboxColors(
const EventStates& aState) {
bool isDisabled = aState.HasState(NS_EVENT_STATE_DISABLED);
bool isPressed = !isDisabled && aState.HasAllStates(NS_EVENT_STATE_HOVER |
NS_EVENT_STATE_ACTIVE);
bool isHovered = !isDisabled && aState.HasState(NS_EVENT_STATE_HOVER);
bool isChecked = aState.HasState(NS_EVENT_STATE_CHECKED);
sRGBColor backgroundColor = sColorWhite;
sRGBColor borderColor = sColorGrey40;
if (isDisabled) {
if (isChecked) {
backgroundColor = borderColor = sColorGrey40Alpha50;
} else {
backgroundColor = sColorWhiteAlpha50;
borderColor = sColorGrey40Alpha50;
}
} else {
if (isChecked) {
if (isPressed) {
backgroundColor = borderColor = sColorAccentDarker;
} else if (isHovered) {
backgroundColor = borderColor = sColorAccentDark;
} else {
backgroundColor = borderColor = sColorAccent;
}
} else if (isPressed) {
backgroundColor = sColorGrey20;
borderColor = sColorGrey60;
} else if (isHovered) {
backgroundColor = sColorWhite;
borderColor = sColorGrey50;
} else {
backgroundColor = sColorWhite;
borderColor = sColorGrey40;
}
}
return std::make_pair(backgroundColor, borderColor);
}
sRGBColor nsNativeBasicTheme::ComputeCheckmarkColor(const EventStates& aState) {
bool isDisabled = aState.HasState(NS_EVENT_STATE_DISABLED);
return isDisabled ? sColorWhiteAlpha50 : sColorWhite;
}
std::pair<sRGBColor, sRGBColor> nsNativeBasicTheme::ComputeRadioCheckmarkColors(
const EventStates& aState) {
auto [unusedColor, checkColor] = ComputeCheckboxColors(aState);
(void)unusedColor;
return std::make_pair(sColorWhite, checkColor);
}
sRGBColor nsNativeBasicTheme::ComputeBorderColor(const EventStates& aState) {
bool isDisabled = aState.HasState(NS_EVENT_STATE_DISABLED);
bool isActive =
aState.HasAllStates(NS_EVENT_STATE_HOVER | NS_EVENT_STATE_ACTIVE);
bool isHovered = !isDisabled && aState.HasState(NS_EVENT_STATE_HOVER);
bool isFocused = aState.HasState(NS_EVENT_STATE_FOCUSRING);
if (isDisabled) {
return sColorGrey40Alpha50;
}
if (isFocused) {
return sColorAccent;
}
if (isActive) {
return sColorGrey60;
}
if (isHovered) {
return sColorGrey50;
}
return sColorGrey40;
}
std::pair<sRGBColor, sRGBColor> nsNativeBasicTheme::ComputeButtonColors(
const EventStates& aState, nsIFrame* aFrame) {
bool isActive =
aState.HasAllStates(NS_EVENT_STATE_HOVER | NS_EVENT_STATE_ACTIVE);
bool isDisabled = aState.HasState(NS_EVENT_STATE_DISABLED);
bool isHovered = !isDisabled && aState.HasState(NS_EVENT_STATE_HOVER);
const sRGBColor& backgroundColor = [&] {
if (isDisabled) {
return sColorGrey10Alpha50;
}
if (IsDateTimeResetButton(aFrame)) {
return sColorWhite;
}
if (isActive) {
return sColorGrey30;
}
if (isHovered) {
return sColorGrey20;
}
return sColorGrey10;
}();
const sRGBColor borderColor = ComputeBorderColor(aState);
return std::make_pair(backgroundColor, borderColor);
}
std::pair<sRGBColor, sRGBColor> nsNativeBasicTheme::ComputeTextfieldColors(
const EventStates& aState) {
bool isDisabled = aState.HasState(NS_EVENT_STATE_DISABLED);
const sRGBColor& backgroundColor =
isDisabled ? sColorWhiteAlpha50 : sColorWhite;
const sRGBColor borderColor = ComputeBorderColor(aState);
return std::make_pair(backgroundColor, borderColor);
}
std::pair<sRGBColor, sRGBColor> nsNativeBasicTheme::ComputeRangeProgressColors(
const EventStates& aState) {
bool isActive =
aState.HasAllStates(NS_EVENT_STATE_HOVER | NS_EVENT_STATE_ACTIVE);
bool isDisabled = aState.HasState(NS_EVENT_STATE_DISABLED);
bool isHovered = !isDisabled && aState.HasState(NS_EVENT_STATE_HOVER);
if (isDisabled) {
return std::make_pair(sColorGrey40Alpha50, sColorGrey40Alpha50);
}
if (isActive || isHovered) {
return std::make_pair(sColorAccentDark, sColorAccentDarker);
}
return std::make_pair(sColorAccent, sColorAccentDark);
}
std::pair<sRGBColor, sRGBColor> nsNativeBasicTheme::ComputeRangeTrackColors(
const EventStates& aState) {
bool isActive =
aState.HasAllStates(NS_EVENT_STATE_HOVER | NS_EVENT_STATE_ACTIVE);
bool isDisabled = aState.HasState(NS_EVENT_STATE_DISABLED);
bool isHovered = !isDisabled && aState.HasState(NS_EVENT_STATE_HOVER);
if (isDisabled) {
return std::make_pair(sColorGrey10Alpha50, sColorGrey40Alpha50);
}
if (isActive || isHovered) {
return std::make_pair(sColorGrey20, sColorGrey50);
}
return std::make_pair(sColorGrey10, sColorGrey40);
}
std::pair<sRGBColor, sRGBColor> nsNativeBasicTheme::ComputeRangeThumbColors(
const EventStates& aState) {
bool isActive =
aState.HasAllStates(NS_EVENT_STATE_HOVER | NS_EVENT_STATE_ACTIVE);
bool isDisabled = aState.HasState(NS_EVENT_STATE_DISABLED);
bool isHovered = !isDisabled && aState.HasState(NS_EVENT_STATE_HOVER);
const sRGBColor& backgroundColor = [&] {
if (isDisabled) {
return sColorGrey50Alpha50;
}
if (isActive) {
return sColorAccent;
}
if (isHovered) {
return sColorGrey60;
}
return sColorGrey50;
}();
const sRGBColor borderColor = sColorWhite;
return std::make_pair(backgroundColor, borderColor);
}
std::pair<sRGBColor, sRGBColor> nsNativeBasicTheme::ComputeProgressColors() {
return std::make_pair(sColorAccent, sColorAccentDark);
}
std::pair<sRGBColor, sRGBColor>
nsNativeBasicTheme::ComputeProgressTrackColors() {
return std::make_pair(sColorGrey10, sColorGrey40);
}
std::pair<sRGBColor, sRGBColor> nsNativeBasicTheme::ComputeMeterchunkColors(
const double aValue, const double aOptimum, const double aLow) {
sRGBColor borderColor = sColorMeterGreen20;
sRGBColor chunkColor = sColorMeterGreen10;
if (aValue < aOptimum) {
if (aValue < aLow) {
borderColor = sColorMeterRed20;
chunkColor = sColorMeterRed10;
} else {
borderColor = sColorMeterYellow20;
chunkColor = sColorMeterYellow10;
}
}
return std::make_pair(chunkColor, borderColor);
}
std::pair<sRGBColor, sRGBColor> nsNativeBasicTheme::ComputeMeterTrackColors() {
return std::make_pair(sColorGrey10, sColorGrey40);
}
sRGBColor nsNativeBasicTheme::ComputeMenulistArrowButtonColor(
const EventStates& aState) {
bool isDisabled = aState.HasState(NS_EVENT_STATE_DISABLED);
return isDisabled ? sColorGrey60Alpha50 : sColorGrey60;
}
std::array<sRGBColor, 3> nsNativeBasicTheme::ComputeFocusRectColors() {
std::array<sRGBColor, 3> colors = {sColorAccent, sColorWhiteAlpha80,
sColorAccentLight};
return colors;
}
sRGBColor nsNativeBasicTheme::ComputeScrollbarColor(
const ComputedStyle& aStyle, const EventStates& aDocumentState,
bool aIsRoot) {
const nsStyleUI* ui = aStyle.StyleUI();
nscolor color;
if (ui->mScrollbarColor.IsColors()) {
color = ui->mScrollbarColor.AsColors().track.CalcColor(aStyle);
} else if (aDocumentState.HasAllStates(NS_DOCUMENT_STATE_WINDOW_INACTIVE)) {
color = LookAndFeel::GetColor(LookAndFeel::ColorID::ThemedScrollbarInactive,
sScrollbarColor.ToABGR());
} else {
color = LookAndFeel::GetColor(LookAndFeel::ColorID::ThemedScrollbar,
sScrollbarColor.ToABGR());
}
if (aIsRoot) {
// Root scrollbars must be opaque.
nscolor bg = LookAndFeel::GetColor(LookAndFeel::ColorID::WindowBackground,
NS_RGB(0xff, 0xff, 0xff));
color = NS_ComposeColors(bg, color);
}
return gfx::sRGBColor::FromABGR(color);
}
sRGBColor nsNativeBasicTheme::ComputeScrollbarthumbColor(
const ComputedStyle& aStyle, const EventStates& aElementState,
const EventStates& aDocumentState) {
const nsStyleUI* ui = aStyle.StyleUI();
nscolor color;
if (ui->mScrollbarColor.IsColors()) {
color = ui->mScrollbarColor.AsColors().thumb.CalcColor(aStyle);
} else if (aDocumentState.HasAllStates(NS_DOCUMENT_STATE_WINDOW_INACTIVE)) {
color = LookAndFeel::GetColor(
LookAndFeel::ColorID::ThemedScrollbarThumbInactive,
sScrollbarThumbColor.ToABGR());
} else if (aElementState.HasAllStates(NS_EVENT_STATE_ACTIVE)) {
color =
LookAndFeel::GetColor(LookAndFeel::ColorID::ThemedScrollbarThumbActive,
sScrollbarThumbColorActive.ToABGR());
} else if (aElementState.HasAllStates(NS_EVENT_STATE_HOVER)) {
color =
LookAndFeel::GetColor(LookAndFeel::ColorID::ThemedScrollbarThumbHover,
sScrollbarThumbColorHover.ToABGR());
} else {
color = LookAndFeel::GetColor(LookAndFeel::ColorID::ThemedScrollbarThumb,
sScrollbarThumbColor.ToABGR());
}
return gfx::sRGBColor::FromABGR(color);
}
void nsNativeBasicTheme::PaintRoundedFocusRect(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
DPIRatio aDpiRatio,
CSSCoord aRadius,
CSSCoord aOffset) {
// NOTE(emilio): If the widths or offsets here change, make sure to tweak the
// GetWidgetOverflow path for FocusOutline.
auto [innerColor, middleColor, outerColor] = ComputeFocusRectColors();
LayoutDeviceRect focusRect(aRect);
RefPtr<Path> roundedRect;
LayoutDeviceCoord offset = aOffset * aDpiRatio;
LayoutDeviceCoord strokeRadius((aRadius * aDpiRatio) + offset);
LayoutDeviceCoord strokeWidth(CSSCoord(2.0f) * aDpiRatio);
GetFocusStrokeRect(aDrawTarget, focusRect, offset, strokeRadius, strokeWidth,
roundedRect);
aDrawTarget->Stroke(roundedRect, ColorPattern(ToDeviceColor(innerColor)),
StrokeOptions(strokeWidth));
offset = CSSCoord(1.0f) * aDpiRatio;
strokeRadius += offset;
strokeWidth = CSSCoord(1.0f) * aDpiRatio;
GetFocusStrokeRect(aDrawTarget, focusRect, offset, strokeRadius, strokeWidth,
roundedRect);
aDrawTarget->Stroke(roundedRect, ColorPattern(ToDeviceColor(middleColor)),
StrokeOptions(strokeWidth));
offset = CSSCoord(2.0f) * aDpiRatio;
strokeRadius += offset;
strokeWidth = CSSCoord(2.0f) * aDpiRatio;
GetFocusStrokeRect(aDrawTarget, focusRect, offset, strokeRadius, strokeWidth,
roundedRect);
aDrawTarget->Stroke(roundedRect, ColorPattern(ToDeviceColor(outerColor)),
StrokeOptions(strokeWidth));
}
void nsNativeBasicTheme::PaintRoundedRect(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const sRGBColor& aBackgroundColor,
const sRGBColor& aBorderColor,
CSSCoord aBorderWidth,
RectCornerRadii aDpiAdjustedRadii,
DPIRatio aDpiRatio) {
const LayoutDeviceCoord borderWidth(aBorderWidth * aDpiRatio);
LayoutDeviceRect rect(aRect);
// Deflate the rect by half the border width, so that the middle of the stroke
// fills exactly the area we want to fill and not more.
rect.Deflate(borderWidth * 0.5f);
RefPtr<Path> roundedRect = MakePathForRoundedRect(
*aDrawTarget, rect.ToUnknownRect(), aDpiAdjustedRadii);
aDrawTarget->Fill(roundedRect, ColorPattern(ToDeviceColor(aBackgroundColor)));
aDrawTarget->Stroke(roundedRect, ColorPattern(ToDeviceColor(aBorderColor)),
StrokeOptions(borderWidth));
}
void nsNativeBasicTheme::PaintRoundedRectWithRadius(
DrawTarget* aDrawTarget, const LayoutDeviceRect& aRect,
const sRGBColor& aBackgroundColor, const sRGBColor& aBorderColor,
CSSCoord aBorderWidth, CSSCoord aRadius, DPIRatio aDpiRatio) {
const LayoutDeviceCoord radius(aRadius * aDpiRatio);
RectCornerRadii radii(radius, radius, radius, radius);
PaintRoundedRect(aDrawTarget, aRect, aBackgroundColor, aBorderColor,
aBorderWidth, radii, aDpiRatio);
}
void nsNativeBasicTheme::PaintCheckboxControl(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
const CSSCoord borderWidth = 2.0f;
const CSSCoord radius = 2.0f;
auto [backgroundColor, borderColor] = ComputeCheckboxColors(aState);
PaintRoundedRectWithRadius(aDrawTarget, aRect, backgroundColor, borderColor,
borderWidth, radius, aDpiRatio);
if (aState.HasState(NS_EVENT_STATE_FOCUSRING)) {
PaintRoundedFocusRect(aDrawTarget, aRect, aDpiRatio, radius, 3.0f);
}
}
// Returns the right scale to cover aRect in the smaller dimension, accounting
// for aDpiRatio.
static float ScaleToWidgetRect(const LayoutDeviceRect& aRect,
nsNativeBasicTheme::DPIRatio aDpiRatio) {
return std::min(aRect.width, aRect.height) / kMinimumWidgetSize;
}
void nsNativeBasicTheme::PaintCheckMark(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
// Points come from the coordinates on a 14X14 unit box centered at 0,0
const float checkPolygonX[] = {-4.5f, -1.5f, -0.5f, 5.0f, 4.75f,
3.5f, -0.5f, -1.5f, -3.5f};
const float checkPolygonY[] = {0.5f, 4.0f, 4.0f, -2.5f, -4.0f,
-4.0f, 1.0f, 1.25f, -1.0f};
const int32_t checkNumPoints = sizeof(checkPolygonX) / sizeof(float);
const float scale = ScaleToWidgetRect(aRect, aDpiRatio);
auto center = aRect.Center().ToUnknownPoint();
RefPtr<PathBuilder> builder = aDrawTarget->CreatePathBuilder();
Point p = center + Point(checkPolygonX[0] * scale, checkPolygonY[0] * scale);
builder->MoveTo(p);
for (int32_t i = 1; i < checkNumPoints; i++) {
p = center + Point(checkPolygonX[i] * scale, checkPolygonY[i] * scale);
builder->LineTo(p);
}
RefPtr<Path> path = builder->Finish();
sRGBColor fillColor = ComputeCheckmarkColor(aState);
aDrawTarget->Fill(path, ColorPattern(ToDeviceColor(fillColor)));
}
void nsNativeBasicTheme::PaintIndeterminateMark(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
const CSSCoord borderWidth = 2.0f;
const float scale = ScaleToWidgetRect(aRect, aDpiRatio);
Rect rect = aRect.ToUnknownRect();
rect.y += (rect.height / 2) - (borderWidth * scale / 2);
rect.height = borderWidth * scale;
rect.x += (borderWidth * scale) + (borderWidth * scale / 8);
rect.width -= ((borderWidth * scale) + (borderWidth * scale / 8)) * 2;
sRGBColor fillColor = ComputeCheckmarkColor(aState);
aDrawTarget->FillRect(rect, ColorPattern(ToDeviceColor(fillColor)));
}
void nsNativeBasicTheme::PaintStrokedEllipse(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const sRGBColor& aBackgroundColor,
const sRGBColor& aBorderColor,
const CSSCoord aBorderWidth,
DPIRatio aDpiRatio) {
const LayoutDeviceCoord borderWidth(aBorderWidth * aDpiRatio);
RefPtr<PathBuilder> builder = aDrawTarget->CreatePathBuilder();
// Deflate for the same reason as PaintRoundedRectWithRadius. Note that the
// size is the diameter, so we just shrink by the border width once.
auto size = aRect.Size() - LayoutDeviceSize(borderWidth, borderWidth);
AppendEllipseToPath(builder, aRect.Center().ToUnknownPoint(),
size.ToUnknownSize());
RefPtr<Path> ellipse = builder->Finish();
aDrawTarget->Fill(ellipse, ColorPattern(ToDeviceColor(aBackgroundColor)));
aDrawTarget->Stroke(ellipse, ColorPattern(ToDeviceColor(aBorderColor)),
StrokeOptions(borderWidth));
}
void nsNativeBasicTheme::PaintEllipseShadow(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
float aShadowAlpha,
const CSSPoint& aShadowOffset,
CSSCoord aShadowBlurStdDev,
DPIRatio aDpiRatio) {
Float stdDev = aShadowBlurStdDev * aDpiRatio;
Point offset = (aShadowOffset * aDpiRatio).ToUnknownPoint();
RefPtr<FilterNode> blurFilter =
aDrawTarget->CreateFilter(FilterType::GAUSSIAN_BLUR);
if (!blurFilter) {
return;
}
blurFilter->SetAttribute(ATT_GAUSSIAN_BLUR_STD_DEVIATION, stdDev);
IntSize inflation =
gfxAlphaBoxBlur::CalculateBlurRadius(gfxPoint(stdDev, stdDev));
Rect inflatedRect = aRect.ToUnknownRect();
inflatedRect.Inflate(inflation.width, inflation.height);
Rect sourceRectInFilterSpace =
inflatedRect - aRect.TopLeft().ToUnknownPoint();
Point destinationPointOfSourceRect = inflatedRect.TopLeft() + offset;
IntSize dtSize = RoundedToInt(aRect.Size().ToUnknownSize());
RefPtr<DrawTarget> ellipseDT = aDrawTarget->CreateSimilarDrawTargetForFilter(
dtSize, SurfaceFormat::A8, blurFilter, blurFilter,
sourceRectInFilterSpace, destinationPointOfSourceRect);
if (!ellipseDT) {
return;
}
RefPtr<Path> ellipse = MakePathForEllipse(
*ellipseDT, (aRect - aRect.TopLeft()).Center().ToUnknownPoint(),
aRect.Size().ToUnknownSize());
ellipseDT->Fill(ellipse,
ColorPattern(DeviceColor(0.0f, 0.0f, 0.0f, aShadowAlpha)));
RefPtr<SourceSurface> ellipseSurface = ellipseDT->Snapshot();
blurFilter->SetInput(IN_GAUSSIAN_BLUR_IN, ellipseSurface);
aDrawTarget->DrawFilter(blurFilter, sourceRectInFilterSpace,
destinationPointOfSourceRect);
}
void nsNativeBasicTheme::PaintRadioControl(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
const CSSCoord borderWidth = 2.0f;
auto [backgroundColor, borderColor] = ComputeCheckboxColors(aState);
PaintStrokedEllipse(aDrawTarget, aRect, backgroundColor, borderColor,
borderWidth, aDpiRatio);
if (aState.HasState(NS_EVENT_STATE_FOCUSRING)) {
PaintRoundedFocusRect(aDrawTarget, aRect, aDpiRatio, 2.0f, 3.0f);
}
}
void nsNativeBasicTheme::PaintRadioCheckmark(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
const CSSCoord borderWidth = 2.0f;
const float scale = ScaleToWidgetRect(aRect, aDpiRatio);
auto [backgroundColor, checkColor] = ComputeRadioCheckmarkColors(aState);
LayoutDeviceRect rect(aRect);
rect.y += borderWidth * scale;
rect.x += borderWidth * scale;
rect.height -= borderWidth * scale * 2;
rect.width -= borderWidth * scale * 2;
PaintStrokedEllipse(aDrawTarget, rect, checkColor, backgroundColor,
borderWidth, aDpiRatio);
}
void nsNativeBasicTheme::PaintTextField(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
auto [backgroundColor, borderColor] = ComputeTextfieldColors(aState);
const CSSCoord radius = 2.0f;
PaintRoundedRectWithRadius(aDrawTarget, aRect, backgroundColor, borderColor,
kTextFieldBorderWidth, radius, aDpiRatio);
if (aState.HasState(NS_EVENT_STATE_FOCUSRING)) {
PaintRoundedFocusRect(aDrawTarget, aRect, aDpiRatio, radius, 0.0f);
}
}
void nsNativeBasicTheme::PaintListbox(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
const CSSCoord radius = 2.0f;
auto [backgroundColor, borderColor] = ComputeTextfieldColors(aState);
PaintRoundedRectWithRadius(aDrawTarget, aRect, backgroundColor, borderColor,
kMenulistBorderWidth, radius, aDpiRatio);
if (aState.HasState(NS_EVENT_STATE_FOCUSRING)) {
PaintRoundedFocusRect(aDrawTarget, aRect, aDpiRatio, radius, 0.0f);
}
}
void nsNativeBasicTheme::PaintMenulist(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
const CSSCoord radius = 4.0f;
auto [backgroundColor, borderColor] = ComputeButtonColors(aState);
PaintRoundedRectWithRadius(aDrawTarget, aRect, backgroundColor, borderColor,
kMenulistBorderWidth, radius, aDpiRatio);
if (aState.HasState(NS_EVENT_STATE_FOCUSRING)) {
PaintRoundedFocusRect(aDrawTarget, aRect, aDpiRatio, radius, 0.0f);
}
}
void nsNativeBasicTheme::PaintArrow(
DrawTarget* aDrawTarget, const LayoutDeviceRect& aRect,
const int32_t aArrowPolygonX[], const int32_t aArrowPolygonY[],
const int32_t aArrowNumPoints, const int32_t aArrowSize,
const sRGBColor aFillColor, DPIRatio aDpiRatio) {
nscoord paintScale = std::min(aRect.width, aRect.height) / aArrowSize;
RefPtr<PathBuilder> builder = aDrawTarget->CreatePathBuilder();
auto center = aRect.Center().ToUnknownPoint();
Point p = center + Point(aArrowPolygonX[0] * paintScale,
aArrowPolygonY[0] * paintScale);
builder->MoveTo(p);
for (int32_t polyIndex = 1; polyIndex < aArrowNumPoints; polyIndex++) {
p = center + Point(aArrowPolygonX[polyIndex] * paintScale,
aArrowPolygonY[polyIndex] * paintScale);
builder->LineTo(p);
}
RefPtr<Path> path = builder->Finish();
aDrawTarget->Stroke(path, ColorPattern(ToDeviceColor(aFillColor)),
StrokeOptions(CSSCoord(2.0f) * aDpiRatio));
}
void nsNativeBasicTheme::PaintMenulistArrowButton(nsIFrame* aFrame,
DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
const float arrowPolygonX[] = {-3.5f, -0.5f, 0.5f, 3.5f, 3.5f,
3.0f, 0.5f, -0.5f, -3.0f, -3.5};
const float arrowPolygonY[] = {-0.5f, 2.5f, 2.5f, -0.5f, -2.0f,
-2.0f, 1.0f, 1.0f, -2.0f, -2.0f};
const int32_t arrowNumPoints = sizeof(arrowPolygonX) / sizeof(float);
const float scale = ScaleToWidgetRect(aRect, aDpiRatio);
auto center = aRect.Center().ToUnknownPoint();
RefPtr<PathBuilder> builder = aDrawTarget->CreatePathBuilder();
Point p = center + Point(arrowPolygonX[0] * scale, arrowPolygonY[0] * scale);
builder->MoveTo(p);
for (int32_t i = 1; i < arrowNumPoints; i++) {
p = center + Point(arrowPolygonX[i] * scale, arrowPolygonY[i] * scale);
builder->LineTo(p);
}
RefPtr<Path> path = builder->Finish();
sRGBColor arrowColor = ComputeMenulistArrowButtonColor(aState);
aDrawTarget->Fill(path, ColorPattern(ToDeviceColor(arrowColor)));
}
void nsNativeBasicTheme::PaintSpinnerButton(nsIFrame* aFrame,
DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
StyleAppearance aAppearance,
DPIRatio aDpiRatio) {
auto [backgroundColor, borderColor] = ComputeButtonColors(aState);
RefPtr<Path> pathRect = MakePathForRect(*aDrawTarget, aRect.ToUnknownRect());
aDrawTarget->Fill(pathRect, ColorPattern(ToDeviceColor(backgroundColor)));
RefPtr<PathBuilder> builder = aDrawTarget->CreatePathBuilder();
Point p;
if (IsFrameRTL(aFrame)) {
p = Point(aRect.x + aRect.width - 0.5f, aRect.y);
} else {
p = Point(aRect.x - 0.5f, aRect.y);
}
builder->MoveTo(p);
p = Point(p.x, p.y + aRect.height);
builder->LineTo(p);
RefPtr<Path> path = builder->Finish();
aDrawTarget->Stroke(path, ColorPattern(ToDeviceColor(borderColor)),
StrokeOptions(kSpinnerBorderWidth * aDpiRatio));
const float arrowPolygonX[] = {-3.5f, -0.5f, 0.5f, 3.5f, 3.5f,
3.0f, 0.5f, -0.5f, -3.0f, -3.5};
float arrowPolygonY[] = {-3.5f, -0.5f, -0.5f, -3.5f, -5.0f,
-5.0f, -2.0f, -2.0f, -5.0f, -5.0f};
const int32_t arrowNumPoints = sizeof(arrowPolygonX) / sizeof(float);
const float scale = ScaleToWidgetRect(aRect, aDpiRatio);
if (aAppearance == StyleAppearance::SpinnerUpbutton) {
for (int32_t i = 0; i < arrowNumPoints; i++) {
arrowPolygonY[i] *= -1;
}
}
auto center = aRect.Center().ToUnknownPoint();
builder = aDrawTarget->CreatePathBuilder();
p = center + Point(arrowPolygonX[0] * scale, arrowPolygonY[0] * scale);
builder->MoveTo(p);
for (int32_t i = 1; i < arrowNumPoints; i++) {
p = center + Point(arrowPolygonX[i] * scale, arrowPolygonY[i] * scale);
builder->LineTo(p);
}
path = builder->Finish();
aDrawTarget->Fill(path, ColorPattern(ToDeviceColor(borderColor)));
}
void nsNativeBasicTheme::PaintRange(nsIFrame* aFrame, DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio, bool aHorizontal) {
nsRangeFrame* rangeFrame = do_QueryFrame(aFrame);
if (!rangeFrame) {
return;
}
double progress = rangeFrame->GetValueAsFractionOfRange();
auto rect = aRect;
LayoutDeviceRect thumbRect(0, 0, kMinimumRangeThumbSize * aDpiRatio,
kMinimumRangeThumbSize * aDpiRatio);
Rect overflowRect = aRect.ToUnknownRect();
overflowRect.Inflate(CSSCoord(6.0f) * aDpiRatio); // See GetWidgetOverflow
Rect progressClipRect(overflowRect);
Rect trackClipRect(overflowRect);
const LayoutDeviceCoord verticalSize = kRangeHeight * aDpiRatio;
if (aHorizontal) {
rect.height = verticalSize;
rect.y = aRect.y + (aRect.height - rect.height) / 2;
thumbRect.y = aRect.y + (aRect.height - thumbRect.height) / 2;
if (IsFrameRTL(aFrame)) {
thumbRect.x =
aRect.x + (aRect.width - thumbRect.width) * (1.0 - progress);
float midPoint = thumbRect.Center().X();
trackClipRect.SetBoxX(overflowRect.X(), midPoint);
progressClipRect.SetBoxX(midPoint, overflowRect.XMost());
} else {
thumbRect.x = aRect.x + (aRect.width - thumbRect.width) * progress;
float midPoint = thumbRect.Center().X();
progressClipRect.SetBoxX(overflowRect.X(), midPoint);
trackClipRect.SetBoxX(midPoint, overflowRect.XMost());
}
} else {
rect.width = verticalSize;
rect.x = aRect.x + (aRect.width - rect.width) / 2;
thumbRect.x = aRect.x + (aRect.width - thumbRect.width) / 2;
thumbRect.y = aRect.y + (aRect.height - thumbRect.height) * progress;
float midPoint = thumbRect.Center().Y();
trackClipRect.SetBoxY(overflowRect.Y(), midPoint);
progressClipRect.SetBoxY(midPoint, overflowRect.YMost());
}
const CSSCoord borderWidth = 1.0f;
const CSSCoord radius = 2.0f;
auto [progressColor, progressBorderColor] =
ComputeRangeProgressColors(aState);
auto [trackColor, trackBorderColor] = ComputeRangeTrackColors(aState);
// Make a path that clips out the range thumb.
RefPtr<PathBuilder> builder =
aDrawTarget->CreatePathBuilder(FillRule::FILL_EVEN_ODD);
AppendRectToPath(builder, overflowRect);
AppendEllipseToPath(builder, thumbRect.Center().ToUnknownPoint(),
thumbRect.Size().ToUnknownSize());
RefPtr<Path> path = builder->Finish();
// Draw the progress and track pieces with the thumb clipped out, so that
// they're not visible behind the thumb even if the thumb is partially
// transparent (which is the case in the disabled state).
aDrawTarget->PushClip(path);
{
aDrawTarget->PushClipRect(progressClipRect);
PaintRoundedRectWithRadius(aDrawTarget, rect, progressColor,
progressBorderColor, borderWidth, radius,
aDpiRatio);
aDrawTarget->PopClip();
aDrawTarget->PushClipRect(trackClipRect);
PaintRoundedRectWithRadius(aDrawTarget, rect, trackColor, trackBorderColor,
borderWidth, radius, aDpiRatio);
aDrawTarget->PopClip();
if (!aState.HasState(NS_EVENT_STATE_DISABLED)) {
// Thumb shadow
PaintEllipseShadow(aDrawTarget, thumbRect, 0.3f, CSSPoint(0.0f, 2.0f),
2.0f, aDpiRatio);
}
}
aDrawTarget->PopClip();
// Draw the thumb on top.
const CSSCoord thumbBorderWidth = 2.0f;
auto [thumbColor, thumbBorderColor] = ComputeRangeThumbColors(aState);
PaintStrokedEllipse(aDrawTarget, thumbRect, thumbColor, thumbBorderColor,
thumbBorderWidth, aDpiRatio);
if (aState.HasState(NS_EVENT_STATE_FOCUSRING)) {
PaintRoundedFocusRect(aDrawTarget, aRect, aDpiRatio, radius, 3.0f);
}
}
void nsNativeBasicTheme::PaintProgressBar(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
const CSSCoord borderWidth = 1.0f;
const CSSCoord radius = 2.0f;
LayoutDeviceRect rect(aRect);
const LayoutDeviceCoord height = kProgressbarHeight * aDpiRatio;
rect.y += (rect.height - height) / 2;
rect.height = height;
auto [trackColor, trackBorderColor] = ComputeProgressTrackColors();
PaintRoundedRectWithRadius(aDrawTarget, rect, trackColor, trackBorderColor,
borderWidth, radius, aDpiRatio);
}
void nsNativeBasicTheme::PaintProgresschunk(nsIFrame* aFrame,
DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
// TODO: vertical?
// TODO: Address artifacts when position is between 0 and radius + border.
// TODO: Handle indeterminate case.
nsProgressFrame* progressFrame = do_QueryFrame(aFrame->GetParent());
if (!progressFrame) {
return;
}
const CSSCoord borderWidth = 1.0f;
const LayoutDeviceCoord radius = CSSCoord(2.0f) * aDpiRatio;
LayoutDeviceCoord progressEndRadius = 0.0f;
LayoutDeviceRect rect(aRect);
const LayoutDeviceCoord height = kProgressbarHeight * aDpiRatio;
rect.y += (rect.height - height) / 2;
rect.height = height;
double position = GetProgressValue(aFrame) / GetProgressMaxValue(aFrame);
if (rect.width - (rect.width * position) <
(borderWidth * aDpiRatio + radius)) {
// Round corners when the progress chunk approaches the maximum value to
// avoid artifacts.
progressEndRadius = radius;
}
RectCornerRadii radii;
if (IsFrameRTL(aFrame)) {
radii =
RectCornerRadii(progressEndRadius, radius, radius, progressEndRadius);
} else {
radii =
RectCornerRadii(radius, progressEndRadius, progressEndRadius, radius);
}
auto [progressColor, progressBorderColor] = ComputeProgressColors();
PaintRoundedRect(aDrawTarget, rect, progressColor, progressBorderColor,
borderWidth, radii, aDpiRatio);
}
void nsNativeBasicTheme::PaintMeter(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
const CSSCoord borderWidth = 1.0f;
const CSSCoord radius = 5.0f;
LayoutDeviceRect rect(aRect);
const LayoutDeviceCoord height = kMeterHeight * aDpiRatio;
rect.y += (rect.height - height) / 2;
rect.height = height;
auto [backgroundColor, borderColor] = ComputeMeterTrackColors();
PaintRoundedRectWithRadius(aDrawTarget, rect, backgroundColor, borderColor,
borderWidth, radius, aDpiRatio);
}
void nsNativeBasicTheme::PaintMeterchunk(nsIFrame* aFrame,
DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
// TODO: Address artifacts when position is between 0 and (radius + border).
nsMeterFrame* meterFrame = do_QueryFrame(aFrame->GetParent());
if (!meterFrame) {
return;
}
const CSSCoord borderWidth = 1.0f;
const LayoutDeviceCoord radius = CSSCoord(5.0f) * aDpiRatio;
LayoutDeviceCoord progressEndRadius = 0.0f;
LayoutDeviceRect rect(aRect);
const LayoutDeviceCoord height = kMeterHeight * aDpiRatio;
rect.y += (rect.height - height) / 2;
rect.height = height;
auto* meter =
static_cast<mozilla::dom::HTMLMeterElement*>(meterFrame->GetContent());
double value = meter->Value();
double max = meter->Max();
double position = value / max;
if (rect.width - (rect.width * position) <
(borderWidth * aDpiRatio + radius)) {
// Round corners when the progress chunk approaches the maximum value to
// avoid artifacts.
progressEndRadius = radius;
}
RectCornerRadii radii;
if (IsFrameRTL(aFrame)) {
radii =
RectCornerRadii(progressEndRadius, radius, radius, progressEndRadius);
} else {
radii =
RectCornerRadii(radius, progressEndRadius, progressEndRadius, radius);
}
auto [chunkColor, borderColor] =
ComputeMeterchunkColors(value, meter->Optimum(), meter->Low());
PaintRoundedRect(aDrawTarget, rect, chunkColor, borderColor, borderWidth,
radii, aDpiRatio);
}
void nsNativeBasicTheme::PaintButton(nsIFrame* aFrame, DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
const EventStates& aState,
DPIRatio aDpiRatio) {
const CSSCoord radius = 4.0f;
auto [backgroundColor, borderColor] = ComputeButtonColors(aState, aFrame);
PaintRoundedRectWithRadius(aDrawTarget, aRect, backgroundColor, borderColor,
kButtonBorderWidth, radius, aDpiRatio);
if (aState.HasState(NS_EVENT_STATE_FOCUSRING)) {
PaintRoundedFocusRect(aDrawTarget, aRect, aDpiRatio, radius, 0.0f);
}
}
void nsNativeBasicTheme::PaintScrollbarThumb(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
bool aHorizontal, nsIFrame* aFrame,
const ComputedStyle& aStyle,
const EventStates& aElementState,
const EventStates& aDocumentState,
DPIRatio aDpiRatio) {
sRGBColor thumbColor =
ComputeScrollbarthumbColor(aStyle, aElementState, aDocumentState);
aDrawTarget->FillRect(aRect.ToUnknownRect(),
ColorPattern(ToDeviceColor(thumbColor)));
}
void nsNativeBasicTheme::PaintScrollbarTrack(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
bool aHorizontal, nsIFrame* aFrame,
const ComputedStyle& aStyle,
const EventStates& aDocumentState,
DPIRatio aDpiRatio, bool aIsRoot) {
// Draw nothing by default. Subclasses can override this.
}
void nsNativeBasicTheme::PaintScrollbar(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
bool aHorizontal, nsIFrame* aFrame,
const ComputedStyle& aStyle,
const EventStates& aDocumentState,
DPIRatio aDpiRatio, bool aIsRoot) {
sRGBColor scrollbarColor =
ComputeScrollbarColor(aStyle, aDocumentState, aIsRoot);
aDrawTarget->FillRect(aRect.ToUnknownRect(),
ColorPattern(ToDeviceColor(scrollbarColor)));
// FIXME(heycam): We should probably derive the border color when custom
// scrollbar colors are in use too. But for now, just skip painting it,
// to avoid ugliness.
if (aStyle.StyleUI()->mScrollbarColor.IsAuto()) {
RefPtr<PathBuilder> builder = aDrawTarget->CreatePathBuilder();
LayoutDeviceRect strokeRect(aRect);
strokeRect.Deflate(CSSCoord(0.5f) * aDpiRatio);
builder->MoveTo(strokeRect.TopLeft().ToUnknownPoint());
builder->LineTo(
(aHorizontal ? strokeRect.TopRight() : strokeRect.BottomLeft())
.ToUnknownPoint());
RefPtr<Path> path = builder->Finish();
aDrawTarget->Stroke(path,
ColorPattern(ToDeviceColor(sScrollbarBorderColor)),
StrokeOptions(CSSCoord(1.0f) * aDpiRatio));
}
}
void nsNativeBasicTheme::PaintScrollCorner(DrawTarget* aDrawTarget,
const LayoutDeviceRect& aRect,
nsIFrame* aFrame,
const ComputedStyle& aStyle,
const EventStates& aDocumentState,
DPIRatio aDpiRatio, bool aIsRoot) {
sRGBColor scrollbarColor =
ComputeScrollbarColor(aStyle, aDocumentState, aIsRoot);
aDrawTarget->FillRect(aRect.ToUnknownRect(),
ColorPattern(ToDeviceColor(scrollbarColor)));
}
void nsNativeBasicTheme::PaintScrollbarbutton(DrawTarget* aDrawTarget,
StyleAppearance aAppearance,
const LayoutDeviceRect& aRect,
const ComputedStyle& aStyle,
const EventStates& aElementState,
const EventStates& aDocumentState,
DPIRatio aDpiRatio) {
bool isActive = aElementState.HasState(NS_EVENT_STATE_ACTIVE);
bool isHovered = aElementState.HasState(NS_EVENT_STATE_HOVER);
bool hasCustomColor = aStyle.StyleUI()->mScrollbarColor.IsColors();
sRGBColor buttonColor;
if (hasCustomColor) {
// When scrollbar-color is in use, use the thumb color for the button.
buttonColor =
ComputeScrollbarthumbColor(aStyle, aElementState, aDocumentState);
} else if (isActive) {
buttonColor = sScrollbarButtonActiveColor;
} else if (!hasCustomColor && isHovered) {
buttonColor = sScrollbarButtonHoverColor;
} else {
buttonColor = sScrollbarColor;
}
aDrawTarget->FillRect(aRect.ToUnknownRect(),
ColorPattern(ToDeviceColor(buttonColor)));
// Start with Up arrow.
int32_t arrowPolygonX[] = {3, 0, -3};
int32_t arrowPolygonY[] = {2, -1, 2};
const int32_t arrowNumPoints = sizeof(arrowPolygonX) / sizeof(int32_t);
const int32_t arrowSize = 14;
switch (aAppearance) {
case StyleAppearance::ScrollbarbuttonUp:
break;
case StyleAppearance::ScrollbarbuttonDown:
for (int32_t i = 0; i < arrowNumPoints; i++) {
arrowPolygonY[i] *= -1;
}
break;
case StyleAppearance::ScrollbarbuttonLeft:
for (int32_t i = 0; i < arrowNumPoints; i++) {
int32_t temp = arrowPolygonX[i];
arrowPolygonX[i] = arrowPolygonY[i];
arrowPolygonY[i] = temp;
}
break;
case StyleAppearance::ScrollbarbuttonRight:
for (int32_t i = 0; i < arrowNumPoints; i++) {
int32_t temp = arrowPolygonX[i];
arrowPolygonX[i] = arrowPolygonY[i] * -1;
arrowPolygonY[i] = temp;
}
break;
default:
return;
}
sRGBColor arrowColor;
if (hasCustomColor) {
// When scrollbar-color is in use, derive the arrow color from the button
// color.
nscolor bg = buttonColor.ToABGR();
bool darken = NS_GetLuminosity(bg) >= NS_MAX_LUMINOSITY / 2;
if (isActive) {
float c = darken ? 0.0f : 1.0f;
arrowColor = sRGBColor(c, c, c);
} else {
uint8_t c = darken ? 0 : 255;
arrowColor =
sRGBColor::FromABGR(NS_ComposeColors(bg, NS_RGBA(c, c, c, 160)));
}
} else if (isActive) {
arrowColor = sScrollbarArrowColorActive;
} else if (isHovered) {
arrowColor = sScrollbarArrowColorHover;
} else {
arrowColor = sScrollbarArrowColor;
}
PaintArrow(aDrawTarget, aRect, arrowPolygonX, arrowPolygonY, arrowNumPoints,
arrowSize, arrowColor, aDpiRatio);
// FIXME(heycam): We should probably derive the border color when custom
// scrollbar colors are in use too. But for now, just skip painting it,
// to avoid ugliness.
if (!hasCustomColor) {
RefPtr<PathBuilder> builder = aDrawTarget->CreatePathBuilder();
builder->MoveTo(Point(aRect.x, aRect.y));
if (aAppearance == StyleAppearance::ScrollbarbuttonUp ||
aAppearance == StyleAppearance::ScrollbarbuttonDown) {
builder->LineTo(Point(aRect.x, aRect.y + aRect.height));
} else {
builder->LineTo(Point(aRect.x + aRect.width, aRect.y));
}
RefPtr<Path> path = builder->Finish();
aDrawTarget->Stroke(path,
ColorPattern(ToDeviceColor(sScrollbarBorderColor)),
StrokeOptions(CSSCoord(1.0f) * aDpiRatio));
}
}
// Checks whether the frame is for a root <scrollbar> or <scrollcorner>, which
// influences some platforms' scrollbar rendering.
bool nsNativeBasicTheme::IsRootScrollbar(nsIFrame* aFrame) {
return CheckBooleanAttr(aFrame, nsGkAtoms::root_) &&
aFrame->PresContext()->IsRootContentDocument() &&
aFrame->GetContent() &&
aFrame->GetContent()->IsInNamespace(kNameSpaceID_XUL);
}
NS_IMETHODIMP
nsNativeBasicTheme::DrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame,
StyleAppearance aAppearance,
const nsRect& aRect,
const nsRect& /* aDirtyRect */) {
DrawTarget* dt = aContext->GetDrawTarget();
// FIXME(emilio): Why does this use AppUnitsPerDevPixel() but GetDPIRatio()
// uses AppUnitsPerDevPixelAtUnitFullZoom()?
const nscoord twipsPerPixel = aFrame->PresContext()->AppUnitsPerDevPixel();
EventStates eventState = GetContentState(aFrame, aAppearance);
EventStates docState = aFrame->GetContent()->OwnerDoc()->GetDocumentState();
auto devPxRect = LayoutDeviceRect::FromUnknownRect(
NSRectToSnappedRect(aRect, twipsPerPixel, *dt));
if (aAppearance == StyleAppearance::MozMenulistArrowButton) {
bool isHTML = IsHTMLContent(aFrame);
nsIFrame* parentFrame = aFrame->GetParent();
bool isMenulist = !isHTML && parentFrame->IsMenuFrame();
// HTML select and XUL menulist dropdown buttons get state from the
// parent.
if (isHTML || isMenulist) {
aFrame = parentFrame;
eventState = GetContentState(parentFrame, aAppearance);
}
}
DPIRatio dpiRatio = GetDPIRatio(aFrame);
switch (aAppearance) {
case StyleAppearance::Radio: {
auto rect = FixAspectRatio(devPxRect);
PaintRadioControl(dt, rect, eventState, dpiRatio);
if (IsSelected(aFrame)) {
PaintRadioCheckmark(dt, rect, eventState, dpiRatio);
}
break;
}
case StyleAppearance::Checkbox: {
auto rect = FixAspectRatio(devPxRect);
PaintCheckboxControl(dt, rect, eventState, dpiRatio);
if (GetIndeterminate(aFrame)) {
PaintIndeterminateMark(dt, rect, eventState, dpiRatio);
} else if (IsChecked(aFrame)) {
PaintCheckMark(dt, rect, eventState, dpiRatio);
}
break;
}
case StyleAppearance::Textarea:
case StyleAppearance::Textfield:
case StyleAppearance::NumberInput:
PaintTextField(dt, devPxRect, eventState, dpiRatio);
break;
case StyleAppearance::Listbox:
PaintListbox(dt, devPxRect, eventState, dpiRatio);
break;
case StyleAppearance::MenulistButton:
case StyleAppearance::Menulist:
PaintMenulist(dt, devPxRect, eventState, dpiRatio);
break;
case StyleAppearance::MozMenulistArrowButton:
PaintMenulistArrowButton(aFrame, dt, devPxRect, eventState, dpiRatio);
break;
case StyleAppearance::SpinnerUpbutton:
case StyleAppearance::SpinnerDownbutton:
PaintSpinnerButton(aFrame, dt, devPxRect, eventState, aAppearance,
dpiRatio);
break;
case StyleAppearance::Range:
PaintRange(aFrame, dt, devPxRect, eventState, dpiRatio,
IsRangeHorizontal(aFrame));
break;
case StyleAppearance::RangeThumb:
// Painted as part of StyleAppearance::Range.
break;
case StyleAppearance::ProgressBar:
PaintProgressBar(dt, devPxRect, eventState, dpiRatio);
break;
case StyleAppearance::Progresschunk:
PaintProgresschunk(aFrame, dt, devPxRect, eventState, dpiRatio);
break;
case StyleAppearance::Meter:
PaintMeter(dt, devPxRect, eventState, dpiRatio);
break;
case StyleAppearance::Meterchunk:
PaintMeterchunk(aFrame, dt, devPxRect, eventState, dpiRatio);
break;
case StyleAppearance::ScrollbarthumbHorizontal:
case StyleAppearance::ScrollbarthumbVertical: {
bool isHorizontal =
aAppearance == StyleAppearance::ScrollbarthumbHorizontal;
PaintScrollbarThumb(dt, devPxRect, isHorizontal, aFrame,
*nsLayoutUtils::StyleForScrollbar(aFrame), eventState,
docState, dpiRatio);
break;
}
case StyleAppearance::ScrollbartrackHorizontal:
case StyleAppearance::ScrollbartrackVertical: {
bool isHorizontal =
aAppearance == StyleAppearance::ScrollbartrackHorizontal;
PaintScrollbarTrack(dt, devPxRect, isHorizontal, aFrame,
*nsLayoutUtils::StyleForScrollbar(aFrame), docState,
dpiRatio, IsRootScrollbar(aFrame));
break;
}
case StyleAppearance::ScrollbarHorizontal:
case StyleAppearance::ScrollbarVertical: {
bool isHorizontal = aAppearance == StyleAppearance::ScrollbarHorizontal;
PaintScrollbar(dt, devPxRect, isHorizontal, aFrame,
*nsLayoutUtils::StyleForScrollbar(aFrame), docState,
dpiRatio, IsRootScrollbar(aFrame));
break;
}
case StyleAppearance::Scrollcorner:
PaintScrollCorner(dt, devPxRect, aFrame,
*nsLayoutUtils::StyleForScrollbar(aFrame), docState,
dpiRatio, IsRootScrollbar(aFrame));
break;
case StyleAppearance::ScrollbarbuttonUp:
case StyleAppearance::ScrollbarbuttonDown:
case StyleAppearance::ScrollbarbuttonLeft:
case StyleAppearance::ScrollbarbuttonRight:
PaintScrollbarbutton(dt, aAppearance, devPxRect,
*nsLayoutUtils::StyleForScrollbar(aFrame),
eventState, docState, dpiRatio);
break;
case StyleAppearance::Button:
PaintButton(aFrame, dt, devPxRect, eventState, dpiRatio);
break;
case StyleAppearance::FocusOutline:
PaintRoundedFocusRect(dt, devPxRect, dpiRatio, 0.0f, 0.0f);
break;
default:
MOZ_ASSERT_UNREACHABLE(
"Should not get here with a widget type we don't support.");
return NS_ERROR_NOT_IMPLEMENTED;
}
return NS_OK;
}
/*bool
nsNativeBasicTheme::CreateWebRenderCommandsForWidget(mozilla::wr::DisplayListBuilder&
aBuilder, mozilla::wr::IpcResourceUpdateQueue& aResources, const
mozilla::layers::StackingContextHelper& aSc,
mozilla::layers::RenderRootStateManager*
aManager, nsIFrame* aFrame, StyleAppearance aAppearance, const nsRect& aRect) {
}*/
LayoutDeviceIntMargin nsNativeBasicTheme::GetWidgetBorder(
nsDeviceContext* aContext, nsIFrame* aFrame, StyleAppearance aAppearance) {
DPIRatio dpiRatio = GetDPIRatio(aFrame);
switch (aAppearance) {
case StyleAppearance::Textfield:
case StyleAppearance::Textarea:
case StyleAppearance::NumberInput: {
// FIXME: Do we want this margin not to be int-based? The native windows
// theme rounds (see ScaleForDPI)...
LayoutDeviceIntCoord w = (kTextFieldBorderWidth * dpiRatio).Rounded();
return LayoutDeviceIntMargin(w, w, w, w);
}
case StyleAppearance::Listbox:
case StyleAppearance::Menulist:
case StyleAppearance::MenulistButton: {
LayoutDeviceIntCoord w = (kMenulistBorderWidth * dpiRatio).Rounded();
return LayoutDeviceIntMargin(w, w, w, w);
}
case StyleAppearance::Button: {
LayoutDeviceIntCoord w = (kButtonBorderWidth * dpiRatio).Rounded();
return LayoutDeviceIntMargin(w, w, w, w);
}
default:
return LayoutDeviceIntMargin();
}
}
bool nsNativeBasicTheme::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::Radio:
case StyleAppearance::Checkbox:
aResult->SizeTo(0, 0, 0, 0);
return true;
default:
break;
}
// Respect author padding.
//
// TODO(emilio): Consider just unconditionally returning false, so that the
// default size of all elements matches other platforms and the UA stylesheet.
if (aFrame->PresContext()->HasAuthorSpecifiedRules(
aFrame, NS_AUTHOR_SPECIFIED_PADDING)) {
return false;
}
DPIRatio dpiRatio = GetDPIRatio(aFrame);
switch (aAppearance) {
case StyleAppearance::Listbox:
case StyleAppearance::Menulist:
aResult->SizeTo(0, 0, 0, 0);
return true;
case StyleAppearance::NumberInput:
*aResult = (CSSMargin(1.0f, 0, 1.0f, 4.0f) * dpiRatio).Rounded();
if (IsFrameRTL(aFrame)) {
std::swap(aResult->left, aResult->right);
}
return true;
case StyleAppearance::Textarea:
case StyleAppearance::MozMenulistArrowButton:
case StyleAppearance::Menuitemtext:
case StyleAppearance::Menuitem:
case StyleAppearance::MenulistText:
case StyleAppearance::MenulistButton:
*aResult = (CSSMargin(1.0f, 4.0f, 1.0f, 4.0f) * dpiRatio).Rounded();
return true;
case StyleAppearance::Button:
if (IsColorPickerButton(aFrame)) {
*aResult = (CSSMargin(4.0f, 4.0f, 4.0f, 4.0f) * dpiRatio).Rounded();
return true;
}
*aResult = (CSSMargin(1.0f, 4.0f, 1.0f, 4.0f) * dpiRatio).Rounded();
return true;
case StyleAppearance::Textfield:
if (IsDateTimeTextField(aFrame)) {
*aResult = (CSSMargin(2.0f, 3.0f, 0.0f, 3.0f) * dpiRatio).Rounded();
return true;
}
*aResult = (CSSMargin(1.0f, 4.0f, 1.0f, 4.0f) * dpiRatio).Rounded();
return true;
default:
return false;
}
}
bool nsNativeBasicTheme::GetWidgetOverflow(nsDeviceContext* aContext,
nsIFrame* aFrame,
StyleAppearance aAppearance,
nsRect* aOverflowRect) {
nsIntMargin overflow;
switch (aAppearance) {
case StyleAppearance::FocusOutline:
// 2px * each of the segments + 1 px for the separation between them.
overflow.SizeTo(5, 5, 5, 5);
break;
case StyleAppearance::Radio:
case StyleAppearance::Checkbox:
case StyleAppearance::Range:
overflow.SizeTo(6, 6, 6, 6);
break;
case StyleAppearance::Textarea:
case StyleAppearance::Textfield:
case StyleAppearance::NumberInput:
case StyleAppearance::Listbox:
case StyleAppearance::MenulistButton:
case StyleAppearance::Menulist:
case StyleAppearance::Button:
overflow.SizeTo(4, 4, 4, 4);
break;
default:
return false;
}
// TODO: This should convert from device pixels to app units, not from CSS
// pixels. And it should take the dpi ratio into account.
// Using CSS pixels can cause the overflow to be too small if the page is
// zoomed out.
aOverflowRect->Inflate(nsMargin(CSSPixel::ToAppUnits(overflow.top),
CSSPixel::ToAppUnits(overflow.right),
CSSPixel::ToAppUnits(overflow.bottom),
CSSPixel::ToAppUnits(overflow.left)));
return true;
}
NS_IMETHODIMP
nsNativeBasicTheme::GetMinimumWidgetSize(nsPresContext* aPresContext,
nsIFrame* aFrame,
StyleAppearance aAppearance,
LayoutDeviceIntSize* aResult,
bool* aIsOverridable) {
DPIRatio dpiRatio = GetDPIRatio(aFrame);
aResult->width = aResult->height = (kMinimumWidgetSize * dpiRatio).Rounded();
switch (aAppearance) {
case StyleAppearance::Button:
if (IsColorPickerButton(aFrame)) {
aResult->height = (kMinimumColorPickerHeight * dpiRatio).Rounded();
}
break;
case StyleAppearance::RangeThumb:
aResult->SizeTo((kMinimumRangeThumbSize * dpiRatio).Rounded(),
(kMinimumRangeThumbSize * dpiRatio).Rounded());
break;
case StyleAppearance::MozMenulistArrowButton:
aResult->width = (kMinimumDropdownArrowButtonWidth * dpiRatio).Rounded();
break;
case StyleAppearance::SpinnerUpbutton:
case StyleAppearance::SpinnerDownbutton:
aResult->width = (kMinimumSpinnerButtonWidth * dpiRatio).Rounded();
break;
case StyleAppearance::ScrollbarVertical:
case StyleAppearance::ScrollbarHorizontal:
case StyleAppearance::ScrollbarbuttonUp:
case StyleAppearance::ScrollbarbuttonDown:
case StyleAppearance::ScrollbarbuttonLeft:
case StyleAppearance::ScrollbarbuttonRight:
case StyleAppearance::ScrollbarthumbVertical:
case StyleAppearance::ScrollbarthumbHorizontal:
case StyleAppearance::ScrollbartrackHorizontal:
case StyleAppearance::ScrollbartrackVertical:
case StyleAppearance::Scrollcorner: {
ComputedStyle* style = nsLayoutUtils::StyleForScrollbar(aFrame);
if (style->StyleUIReset()->mScrollbarWidth == StyleScrollbarWidth::Thin) {
aResult->SizeTo((kMinimumThinScrollbarSize * dpiRatio).Rounded(),
(kMinimumThinScrollbarSize * dpiRatio).Rounded());
} else {
aResult->SizeTo((kMinimumScrollbarSize * dpiRatio).Rounded(),
(kMinimumScrollbarSize * dpiRatio).Rounded());
}
break;
}
default:
break;
}
*aIsOverridable = true;
return NS_OK;
}
nsITheme::Transparency nsNativeBasicTheme::GetWidgetTransparency(
nsIFrame* aFrame, StyleAppearance aAppearance) {
return eUnknownTransparency;
}
NS_IMETHODIMP
nsNativeBasicTheme::WidgetStateChanged(nsIFrame* aFrame,
StyleAppearance aAppearance,
nsAtom* aAttribute, bool* aShouldRepaint,
const nsAttrValue* aOldValue) {
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::menuactive) ||
(aAttribute == nsGkAtoms::sortDirection) ||
(aAttribute == nsGkAtoms::focused) ||
(aAttribute == nsGkAtoms::_default) ||
(aAttribute == nsGkAtoms::open) || (aAttribute == nsGkAtoms::hover)) {
*aShouldRepaint = true;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsNativeBasicTheme::ThemeChanged() { return NS_OK; }
bool nsNativeBasicTheme::WidgetAppearanceDependsOnWindowFocus(
StyleAppearance aAppearance) {
return IsWidgetScrollbarPart(aAppearance);
}
nsITheme::ThemeGeometryType nsNativeBasicTheme::ThemeGeometryTypeForWidget(
nsIFrame* aFrame, StyleAppearance aAppearance) {
return eThemeGeometryTypeUnknown;
}
bool nsNativeBasicTheme::ThemeSupportsWidget(nsPresContext* aPresContext,
nsIFrame* aFrame,
StyleAppearance aAppearance) {
switch (aAppearance) {
case StyleAppearance::Radio:
case StyleAppearance::Checkbox:
case StyleAppearance::FocusOutline:
case StyleAppearance::Textarea:
case StyleAppearance::Textfield:
case StyleAppearance::Range:
case StyleAppearance::RangeThumb:
case StyleAppearance::ProgressBar:
case StyleAppearance::Progresschunk:
case StyleAppearance::Meter:
case StyleAppearance::Meterchunk:
case StyleAppearance::ScrollbarbuttonUp:
case StyleAppearance::ScrollbarbuttonDown:
case StyleAppearance::ScrollbarbuttonLeft:
case StyleAppearance::ScrollbarbuttonRight:
case StyleAppearance::ScrollbarthumbHorizontal:
case StyleAppearance::ScrollbarthumbVertical:
case StyleAppearance::ScrollbartrackHorizontal:
case StyleAppearance::ScrollbartrackVertical:
case StyleAppearance::ScrollbarHorizontal:
case StyleAppearance::ScrollbarVertical:
case StyleAppearance::Scrollcorner:
case StyleAppearance::Button:
case StyleAppearance::Listbox:
case StyleAppearance::Menulist:
case StyleAppearance::Menuitem:
case StyleAppearance::Menuitemtext:
case StyleAppearance::MenulistText:
case StyleAppearance::MenulistButton:
case StyleAppearance::NumberInput:
case StyleAppearance::MozMenulistArrowButton:
case StyleAppearance::SpinnerUpbutton:
case StyleAppearance::SpinnerDownbutton:
return !IsWidgetStyled(aPresContext, aFrame, aAppearance);
default:
return false;
}
}
bool nsNativeBasicTheme::WidgetIsContainer(StyleAppearance aAppearance) {
switch (aAppearance) {
case StyleAppearance::MozMenulistArrowButton:
case StyleAppearance::Radio:
case StyleAppearance::Checkbox:
return false;
default:
return true;
}
}
bool nsNativeBasicTheme::ThemeDrawsFocusForWidget(StyleAppearance aAppearance) {
return true;
}
bool nsNativeBasicTheme::ThemeNeedsComboboxDropmarker() { return true; }