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// Copyright (c) 2010 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 "webkit/glue/webthemeengine_impl_mac.h"
#include <Carbon/Carbon.h>
#include "third_party/WebKit/Source/WebKit/chromium/public/WebCanvas.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebRect.h"
using WebKit::WebCanvas;
using WebKit::WebRect;
using WebKit::WebThemeEngine;
namespace webkit_glue {
static ThemeTrackEnableState stateToHIEnableState(WebThemeEngine::State state) {
switch (state) {
case WebThemeEngine::StateDisabled:
return kThemeTrackDisabled;
case WebThemeEngine::StateInactive:
return kThemeTrackInactive;
default:
return kThemeTrackActive;
}
}
void WebThemeEngineImpl::paintScrollbarThumb(
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);
HIThemeDrawTrack(&trackInfo, 0, canvas, kHIThemeOrientationNormal);
}
} // namespace webkit_glue
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