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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/native_theme/native_theme_aurawin.h"
#include "grit/ui_resources.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "ui/base/nine_image_painter_factory.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/nine_image_painter.h"
#include "ui/gfx/skia_util.h"
#include "ui/gfx/win/dpi.h"
#include "ui/native_theme/common_theme.h"
#include "ui/native_theme/native_theme_win.h"
using gfx::NineImagePainter;
#define EMPTY_IMAGE_GRID { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
namespace ui {
namespace {
const int kScrollbarThumbImages[NativeTheme::kMaxState][9] = {
EMPTY_IMAGE_GRID,
IMAGE_GRID(IDR_SCROLLBAR_THUMB_BASE_HOVER),
IMAGE_GRID(IDR_SCROLLBAR_THUMB_BASE_NORMAL),
IMAGE_GRID(IDR_SCROLLBAR_THUMB_BASE_PRESSED)
};
const int kScrollbarArrowButtonImages[NativeTheme::kMaxState][9] = {
EMPTY_IMAGE_GRID,
IMAGE_GRID(IDR_SCROLLBAR_ARROW_BUTTON_BASE_HOVER),
IMAGE_GRID(IDR_SCROLLBAR_ARROW_BUTTON_BASE_NORMAL),
IMAGE_GRID(IDR_SCROLLBAR_ARROW_BUTTON_BASE_PRESSED)
};
const int kScrollbarTrackImages[9] = IMAGE_GRID(IDR_SCROLLBAR_BASE);
bool IsScrollbarPart(NativeTheme::Part part) {
switch (part) {
case NativeTheme::kScrollbarDownArrow:
case NativeTheme::kScrollbarLeftArrow:
case NativeTheme::kScrollbarRightArrow:
case NativeTheme::kScrollbarUpArrow:
case NativeTheme::kScrollbarHorizontalThumb:
case NativeTheme::kScrollbarVerticalThumb:
case NativeTheme::kScrollbarHorizontalTrack:
case NativeTheme::kScrollbarVerticalTrack:
case NativeTheme::kScrollbarHorizontalGripper:
case NativeTheme::kScrollbarVerticalGripper:
case NativeTheme::kScrollbarCorner:
return true;
}
return false;
}
} // namespace
// static
NativeTheme* NativeTheme::instance() {
return NativeThemeAuraWin::instance();
}
// static
NativeThemeAura* NativeThemeAura::instance() {
return NativeThemeAuraWin::instance();
}
// static
NativeThemeAuraWin* NativeThemeAuraWin::instance() {
CR_DEFINE_STATIC_LOCAL(NativeThemeAuraWin, s_native_theme, ());
return &s_native_theme;
}
NativeThemeAuraWin::NativeThemeAuraWin() {
// Image declarations assume the following order.
COMPILE_ASSERT(kDisabled == 0, states_unexepctedly_changed);
COMPILE_ASSERT(kHovered == 1, states_unexepctedly_changed);
COMPILE_ASSERT(kNormal == 2, states_unexepctedly_changed);
COMPILE_ASSERT(kPressed == 3, states_unexepctedly_changed);
COMPILE_ASSERT(kMaxState == 4, states_unexepctedly_changed);
}
NativeThemeAuraWin::~NativeThemeAuraWin() {
}
void NativeThemeAuraWin::Paint(SkCanvas* canvas,
Part part,
State state,
const gfx::Rect& rect,
const ExtraParams& extra) const {
if (IsScrollbarPart(part) &&
NativeThemeWin::instance()->IsUsingHighContrastTheme()) {
NativeThemeWin::instance()->Paint(canvas, part, state, rect, extra);
return;
}
NativeThemeAura::Paint(canvas, part, state, rect, extra);
}
gfx::Size NativeThemeAuraWin::GetPartSize(Part part,
State state,
const ExtraParams& extra) const {
gfx::Size part_size = CommonThemeGetPartSize(part, state, extra);
if (!part_size.IsEmpty())
return part_size;
// We want aura on windows to use the same size for scrollbars as we would in
// the native theme.
if (IsScrollbarPart(part))
return NativeThemeWin::instance()->GetPartSize(part, state, extra);
return NativeThemeAura::GetPartSize(part, state, extra);
}
void NativeThemeAuraWin::PaintArrowButton(
SkCanvas* gc,
const gfx::Rect& rect,
Part direction,
State state) const {
if (direction == kInnerSpinButton) {
NativeThemeAura::PaintArrowButton(gc, rect, direction, state);
return;
}
PaintPainter(GetOrCreatePainter(
kScrollbarArrowButtonImages, state,
scrollbar_arrow_button_painters_),
gc, rect);
// Aura-win uses slightly different arrow colors.
SkColor arrow_color = GetArrowColor(state);
switch (state) {
case kHovered:
case kNormal:
arrow_color = SkColorSetRGB(0x50, 0x50, 0x50);
break;
case kPressed:
arrow_color = SK_ColorWHITE;
default:
break;
}
PaintArrow(gc, rect, direction, arrow_color);
}
void NativeThemeAuraWin::PaintScrollbarTrack(
SkCanvas* sk_canvas,
Part part,
State state,
const ScrollbarTrackExtraParams& extra_params,
const gfx::Rect& rect) const {
if (!scrollbar_track_painter_)
scrollbar_track_painter_ = CreateNineImagePainter(kScrollbarTrackImages);
PaintPainter(scrollbar_track_painter_.get(), sk_canvas, rect);
}
void NativeThemeAuraWin::PaintScrollbarThumb(SkCanvas* sk_canvas,
Part part,
State state,
const gfx::Rect& rect) const {
gfx::Rect thumb_rect(rect);
if (part == NativeTheme::kScrollbarVerticalThumb)
thumb_rect.Inset(2, 0, 2, 0);
else
thumb_rect.Inset(0, 2, 0, 2);
PaintPainter(GetOrCreatePainter(
kScrollbarThumbImages, state, scrollbar_thumb_painters_),
sk_canvas, thumb_rect);
}
void NativeThemeAuraWin::PaintScrollbarCorner(SkCanvas* canvas,
State state,
const gfx::Rect& rect) const {
canvas->drawColor(SkColorSetRGB(0xF1, 0xF1, 0xF1), SkXfermode::kSrc_Mode);
}
NineImagePainter* NativeThemeAuraWin::GetOrCreatePainter(
const int images[kMaxState][9],
State state,
scoped_ptr<NineImagePainter> painters[kMaxState]) const {
if (painters[state])
return painters[state].get();
if (images[state][0] == 0) {
// Must always provide normal state images.
DCHECK_NE(kNormal, state);
return GetOrCreatePainter(images, kNormal, painters);
}
painters[state] = CreateNineImagePainter(images[state]);
return painters[state].get();
}
void NativeThemeAuraWin::PaintPainter(NineImagePainter* painter,
SkCanvas* sk_canvas,
const gfx::Rect& rect) const {
DCHECK(painter);
scoped_ptr<gfx::Canvas> canvas(CreateCanvas(sk_canvas));
painter->Paint(canvas.get(), rect);
}
} // namespace ui
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