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 41 namespace WebCore { 42 43 Screen::Screen(LocalFrame* frame) 44 : DOMWindowProperty(frame) 45 { 46 ScriptWrappable::init(this); 47 } 48 49 unsigned Screen::height() const 50 { 51 if (!m_frame) 52 return 0; 53 FrameHost* host = m_frame->host(); 54 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 55 return lroundf(screenRect(m_frame->view()).height() * host->deviceScaleFactor()); 56 return static_cast<unsigned>(screenRect(m_frame->view()).height()); 57 } 58 59 unsigned Screen::width() const 60 { 61 if (!m_frame) 62 return 0; 63 FrameHost* host = m_frame->host(); 64 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 65 return lroundf(screenRect(m_frame->view()).width() * host->deviceScaleFactor()); 66 return static_cast<unsigned>(screenRect(m_frame->view()).width()); 67 } 68 69 unsigned Screen::colorDepth() const 70 { 71 if (!m_frame) 72 return 0; 73 return static_cast<unsigned>(screenDepth(m_frame->view())); 74 } 75 76 unsigned Screen::pixelDepth() const 77 { 78 if (!m_frame) 79 return 0; 80 return static_cast<unsigned>(screenDepth(m_frame->view())); 81 } 82 83 int Screen::availLeft() const 84 { 85 if (!m_frame) 86 return 0; 87 FrameHost* host = m_frame->host(); 88 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 89 return lroundf(screenAvailableRect(m_frame->view()).x() * host->deviceScaleFactor()); 90 return static_cast<int>(screenAvailableRect(m_frame->view()).x()); 91 } 92 93 int Screen::availTop() const 94 { 95 if (!m_frame) 96 return 0; 97 FrameHost* host = m_frame->host(); 98 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 99 return lroundf(screenAvailableRect(m_frame->view()).y() * host->deviceScaleFactor()); 100 return static_cast<int>(screenAvailableRect(m_frame->view()).y()); 101 } 102 103 unsigned Screen::availHeight() const 104 { 105 if (!m_frame) 106 return 0; 107 FrameHost* host = m_frame->host(); 108 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 109 return lroundf(screenAvailableRect(m_frame->view()).height() * host->deviceScaleFactor()); 110 return static_cast<unsigned>(screenAvailableRect(m_frame->view()).height()); 111 } 112 113 unsigned Screen::availWidth() const 114 { 115 if (!m_frame) 116 return 0; 117 FrameHost* host = m_frame->host(); 118 if (host && host->settings().reportScreenSizeInPhysicalPixelsQuirk()) 119 return lroundf(screenAvailableRect(m_frame->view()).width() * host->deviceScaleFactor()); 120 return static_cast<unsigned>(screenAvailableRect(m_frame->view()).width()); 121 } 122 123 void Screen::trace(Visitor* visitor) 124 { 125 WillBeHeapSupplementable<Screen>::trace(visitor); 126 } 127 128 } // namespace WebCore 129
