michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsViewportInfo.h"
michael@0: #include "mozilla/Assertions.h"
michael@0: #include <algorithm>
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: void
michael@0: nsViewportInfo::SetDefaultZoom(const CSSToScreenScale& aDefaultZoom)
michael@0: {
michael@0:   MOZ_ASSERT(aDefaultZoom.scale >= 0.0f);
michael@0:   mDefaultZoom = aDefaultZoom;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsViewportInfo::ConstrainViewportValues()
michael@0: {
michael@0:   // Constrain the min/max zoom as specified at:
michael@0:   // dev.w3.org/csswg/css-device-adapt section 6.2
michael@0:   mMaxZoom = std::max(mMinZoom, mMaxZoom);
michael@0: 
michael@0:   mDefaultZoom = mDefaultZoom < mMaxZoom ? mDefaultZoom : mMaxZoom;
michael@0:   mDefaultZoom = mDefaultZoom > mMinZoom ? mDefaultZoom : mMinZoom;
michael@0: }