// Copyright 2013 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 "content/shell/renderer/test_runner/WebTestThemeEngineMac.h" #import #import #import #import #include #include "skia/ext/skia_utils_mac.h" #include "third_party/WebKit/public/platform/WebCanvas.h" #include "third_party/WebKit/public/platform/WebRect.h" using blink::WebCanvas; using blink::WebRect; using blink::WebThemeEngine; // We can't directly tell the NSScroller to draw itself as active or inactive, // instead we have to make it a child of an (in)active window. This class lets // us fake that parent window. @interface FakeActiveWindow : NSWindow { @private BOOL hasActiveControls; } + (NSWindow*)alwaysActiveWindow; + (NSWindow*)alwaysInactiveWindow; - (id)initWithActiveControls:(BOOL)_hasActiveControls; - (BOOL)_hasActiveControls; @end @implementation FakeActiveWindow static NSWindow* alwaysActiveWindow = nil; static NSWindow* alwaysInactiveWindow = nil; + (NSWindow*)alwaysActiveWindow { if (alwaysActiveWindow == nil) alwaysActiveWindow = [[self alloc] initWithActiveControls:YES]; return alwaysActiveWindow; } + (NSWindow*)alwaysInactiveWindow { if (alwaysInactiveWindow == nil) alwaysInactiveWindow = [[self alloc] initWithActiveControls:NO]; return alwaysInactiveWindow; } - (id)initWithActiveControls:(BOOL)_hasActiveControls { if ((self = [super initWithContentRect:NSMakeRect(0, 0, 100, 100) styleMask:0 backing:NSBackingStoreBuffered defer:YES])) { hasActiveControls = _hasActiveControls; } return self; } - (BOOL)_hasActiveControls { return hasActiveControls; } @end namespace content { namespace { ThemeTrackEnableState stateToHIEnableState(WebThemeEngine::State state) { switch (state) { case WebThemeEngine::StateDisabled: return kThemeTrackDisabled; case WebThemeEngine::StateInactive: return kThemeTrackInactive; default: return kThemeTrackActive; } } } // namespace void WebTestThemeEngineMac::paintScrollbarThumb( WebCanvas* canvas, WebThemeEngine::State state, WebThemeEngine::Size size, const WebRect& rect, const WebThemeEngine::ScrollbarInfo& scrollbarInfo) { // To match the Mac port, we still use HITheme for inner scrollbars. if (scrollbarInfo.parent == WebThemeEngine::ScrollbarParentRenderLayer) paintHIThemeScrollbarThumb(canvas, state, size, rect, scrollbarInfo); else paintNSScrollerScrollbarThumb(canvas, state, size, rect, scrollbarInfo); } // Duplicated from webkit/glue/webthemeengine_impl_mac.cc in the downstream // Chromium WebThemeEngine implementation. void WebTestThemeEngineMac::paintHIThemeScrollbarThumb( WebCanvas* canvas, WebThemeEngine::State state, WebThemeEngine::Size size, const WebRect& rect, const WebThemeEngine::ScrollbarInfo& scrollbarInfo) { HIThemeTrackDrawInfo trackInfo; trackInfo.version = 0; trackInfo.kind = size == WebThemeEngine::SizeRegular ? kThemeMediumScrollBar : kThemeSmallScrollBar; trackInfo.bounds = CGRectMake(rect.x, rect.y, rect.width, rect.height); trackInfo.min = 0; trackInfo.max = scrollbarInfo.maxValue; trackInfo.value = scrollbarInfo.currentValue; trackInfo.trackInfo.scrollbar.viewsize = scrollbarInfo.visibleSize; trackInfo.attributes = 0; if (scrollbarInfo.orientation == WebThemeEngine::ScrollbarOrientationHorizontal) trackInfo.attributes |= kThemeTrackHorizontal; trackInfo.enableState = stateToHIEnableState(state); trackInfo.trackInfo.scrollbar.pressState = state == WebThemeEngine::StatePressed ? kThemeThumbPressed : 0; trackInfo.attributes |= (kThemeTrackShowThumb | kThemeTrackHideTrack); gfx::SkiaBitLocker bitLocker(canvas); CGContextRef cgContext = bitLocker.cgContext(); HIThemeDrawTrack(&trackInfo, 0, cgContext, kHIThemeOrientationNormal); } void WebTestThemeEngineMac::paintNSScrollerScrollbarThumb( WebCanvas* canvas, WebThemeEngine::State state, WebThemeEngine::Size size, const WebRect& rect, const WebThemeEngine::ScrollbarInfo& scrollbarInfo) { [NSGraphicsContext saveGraphicsState]; NSScroller* scroller = [[NSScroller alloc] initWithFrame:NSMakeRect(rect.x, rect.y, rect.width, rect.height)]; [scroller setEnabled:state != WebThemeEngine::StateDisabled]; if (state == WebThemeEngine::StateInactive) [[[FakeActiveWindow alwaysInactiveWindow] contentView] addSubview:scroller]; else [[[FakeActiveWindow alwaysActiveWindow] contentView] addSubview:scroller]; [scroller setControlSize:size == WebThemeEngine::SizeRegular ? NSRegularControlSize : NSSmallControlSize]; double value = double(scrollbarInfo.currentValue) / double(scrollbarInfo.maxValue); [scroller setDoubleValue: value]; float knobProportion = float(scrollbarInfo.visibleSize) / float(scrollbarInfo.totalSize); [scroller setKnobProportion: knobProportion]; gfx::SkiaBitLocker bitLocker(canvas); CGContextRef cgContext = bitLocker.cgContext(); NSGraphicsContext* nsGraphicsContext = [NSGraphicsContext graphicsContextWithGraphicsPort:cgContext flipped:YES]; [NSGraphicsContext setCurrentContext:nsGraphicsContext]; // Despite passing in frameRect() to the scroller, it always draws at (0, 0). // Force it to draw in the right location by translating the whole graphics // context. CGContextSaveGState(cgContext); NSAffineTransform *transform = [NSAffineTransform transform]; [transform translateXBy:rect.x yBy:rect.y]; [transform concat]; [scroller drawKnob]; CGContextRestoreGState(cgContext); [scroller release]; [NSGraphicsContext restoreGraphicsState]; } } // namespace content