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/* vim: se cin sw=2 ts=2 et : */
/* -*- Mode: C++; tab-width: 2; 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 "mozilla/ArrayUtils.h"
#include "mozilla/WindowsVersion.h"
#include "nsUXThemeData.h"
#include "nsDebug.h"
#include "nsToolkit.h"
#include "nsUXThemeConstants.h"
#include "gfxWindowsPlatform.h"
using namespace mozilla;
using namespace mozilla::widget;
nsUXThemeData::ThemeHandle nsUXThemeData::sThemes[eUXNumClasses];
nsUXThemeData::ThemeHandle::~ThemeHandle() { Close(); }
void nsUXThemeData::ThemeHandle::OpenOnce(HWND aWindow, LPCWSTR aClassList) {
if (mHandle.isSome()) {
return;
}
mHandle = Some(OpenThemeData(aWindow, aClassList));
}
void nsUXThemeData::ThemeHandle::Close() {
if (mHandle.isNothing()) {
return;
}
if (HANDLE rawHandle = mHandle.extract()) {
CloseThemeData(rawHandle);
}
}
nsUXThemeData::ThemeHandle::operator HANDLE() {
return mHandle.valueOr(nullptr);
}
void nsUXThemeData::Invalidate() {
for (auto& theme : sThemes) {
theme.Close();
}
}
HANDLE
nsUXThemeData::GetTheme(nsUXThemeClass cls) {
NS_ASSERTION(cls < eUXNumClasses, "Invalid theme class!");
sThemes[cls].OpenOnce(nullptr, GetClassName(cls));
return sThemes[cls];
}
const wchar_t* nsUXThemeData::GetClassName(nsUXThemeClass cls) {
switch (cls) {
case eUXButton:
return L"Button";
case eUXEdit:
return L"Edit";
case eUXToolbar:
return L"Toolbar";
case eUXProgress:
return L"Progress";
case eUXTab:
return L"Tab";
case eUXTrackbar:
return L"Trackbar";
case eUXCombobox:
return L"Combobox";
case eUXListview:
return L"Listview";
case eUXMenu:
return L"Menu";
default:
MOZ_ASSERT_UNREACHABLE("unknown uxtheme class");
return L"";
}
}
bool nsUXThemeData::sIsHighContrastOn = false;
// static
void nsUXThemeData::UpdateNativeThemeInfo() {
HIGHCONTRAST highContrastInfo;
highContrastInfo.cbSize = sizeof(HIGHCONTRAST);
sIsHighContrastOn =
SystemParametersInfo(SPI_GETHIGHCONTRAST, 0, &highContrastInfo, 0) &&
highContrastInfo.dwFlags & HCF_HIGHCONTRASTON;
}
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