1/* 2 * Copyright (C) 2007 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 30#include "config.h" 31#include "core/frame/Screen.h" 32 33#include "core/frame/FrameHost.h" 34#include "core/frame/FrameView.h" 35#include "core/frame/LocalFrame.h" 36#include "core/frame/Settings.h" 37#include "core/inspector/InspectorInstrumentation.h" 38#include "platform/PlatformScreen.h" 39#include "platform/geometry/FloatRect.h" 40 41namespace blink { 42 43Screen::Screen(LocalFrame* frame) 44 : DOMWindowProperty(frame) 45{ 46} 47 48unsigned Screen::height() const 49{ 50 if (!m_frame) 51 return 0; 52 FrameHost* host = m_frame->host(); 53 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 54 return lroundf(screenRect(m_frame->view()).height() * host->deviceScaleFactor()); 55 return static_cast<unsigned>(screenRect(m_frame->view()).height()); 56} 57 58unsigned Screen::width() const 59{ 60 if (!m_frame) 61 return 0; 62 FrameHost* host = m_frame->host(); 63 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 64 return lroundf(screenRect(m_frame->view()).width() * host->deviceScaleFactor()); 65 return static_cast<unsigned>(screenRect(m_frame->view()).width()); 66} 67 68unsigned Screen::colorDepth() const 69{ 70 if (!m_frame) 71 return 0; 72 return static_cast<unsigned>(screenDepth(m_frame->view())); 73} 74 75unsigned Screen::pixelDepth() const 76{ 77 if (!m_frame) 78 return 0; 79 return static_cast<unsigned>(screenDepth(m_frame->view())); 80} 81 82int Screen::availLeft() const 83{ 84 if (!m_frame) 85 return 0; 86 FrameHost* host = m_frame->host(); 87 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 88 return lroundf(screenAvailableRect(m_frame->view()).x() * host->deviceScaleFactor()); 89 return static_cast<int>(screenAvailableRect(m_frame->view()).x()); 90} 91 92int Screen::availTop() const 93{ 94 if (!m_frame) 95 return 0; 96 FrameHost* host = m_frame->host(); 97 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 98 return lroundf(screenAvailableRect(m_frame->view()).y() * host->deviceScaleFactor()); 99 return static_cast<int>(screenAvailableRect(m_frame->view()).y()); 100} 101 102unsigned Screen::availHeight() const 103{ 104 if (!m_frame) 105 return 0; 106 FrameHost* host = m_frame->host(); 107 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 108 return lroundf(screenAvailableRect(m_frame->view()).height() * host->deviceScaleFactor()); 109 return static_cast<unsigned>(screenAvailableRect(m_frame->view()).height()); 110} 111 112unsigned Screen::availWidth() const 113{ 114 if (!m_frame) 115 return 0; 116 FrameHost* host = m_frame->host(); 117 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 118 return lroundf(screenAvailableRect(m_frame->view()).width() * host->deviceScaleFactor()); 119 return static_cast<unsigned>(screenAvailableRect(m_frame->view()).width()); 120} 121 122void Screen::trace(Visitor* visitor) 123{ 124#if ENABLE(OILPAN) 125 HeapSupplementable<Screen>::trace(visitor); 126#endif 127 DOMWindowProperty::trace(visitor); 128} 129 130} // namespace blink 131