| /* |
| * Copyright (C) 2011, 2012 Nokia Corporation and/or its subsidiary(-ies) |
| * Copyright (C) 2011 Benjamin Poulain <benjamin@webkit.org> |
| * Copyright (C) 2014 Igalia S.L. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this program; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #pragma once |
| |
| #if USE(COORDINATED_GRAPHICS) |
| |
| #include <WebCore/FloatPoint.h> |
| #include <WebCore/FloatRect.h> |
| #include <WebCore/FloatSize.h> |
| #include <WebCore/IntRect.h> |
| #include <WebCore/IntSize.h> |
| #include <WebCore/ViewportArguments.h> |
| #include <wtf/Noncopyable.h> |
| |
| namespace WebKit { |
| |
| class SimpleViewportController { |
| WTF_MAKE_NONCOPYABLE(SimpleViewportController); |
| public: |
| SimpleViewportController(const WebCore::IntSize&); |
| |
| void didChangeViewportSize(const WebCore::IntSize&); |
| void didChangeContentsSize(const WebCore::IntSize&); |
| void didChangeViewportAttributes(WebCore::ViewportAttributes&&); |
| void didScroll(const WebCore::IntPoint&); |
| |
| WebCore::FloatRect visibleContentsRect() const; |
| float pageScaleFactor() const { return m_pageScaleFactor; } |
| |
| private: |
| WebCore::FloatSize visibleContentsSize() const; |
| |
| void applyScaleAfterRenderingContents(float scale); |
| void applyPositionAfterRenderingContents(const WebCore::FloatPoint& pos); |
| |
| WebCore::FloatPoint boundContentsPosition(const WebCore::FloatPoint&) const; |
| WebCore::FloatPoint boundContentsPositionAtScale(const WebCore::FloatPoint&, float scale) const; |
| |
| bool updateMinimumScaleToFit(); |
| float innerBoundedViewportScale(float) const; |
| |
| void resetViewportToDefaultState(); |
| |
| WebCore::IntPoint m_contentsPosition; |
| WebCore::FloatSize m_contentsSize; |
| WebCore::FloatSize m_viewportSize; |
| float m_pageScaleFactor { 1 }; |
| |
| bool m_allowsUserScaling { false }; |
| float m_minimumScaleToFit { 1 }; |
| bool m_initiallyFitToViewport { false }; |
| |
| bool m_hasViewportAttribute { false }; |
| WebCore::ViewportAttributes m_rawAttributes; |
| }; |
| |
| } // namespace WebKit |
| |
| #endif // USE(COORDINATED_GRAPHICS) |