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| 1 /* | |
| 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | |
| 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | |
| 4 * (C) 2001 Dirk Mueller (mueller@kde.org) | |
| 5 * (C) 2006 Alexey Proskuryakov (ap@webkit.org) | |
| 6 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. | |
| 7 * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmo
bile.com/) | |
| 8 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) | |
| 9 * Copyright (C) 2012-2013 Intel Corporation. All rights reserved. | |
| 10 * | |
| 11 * This library is free software; you can redistribute it and/or | |
| 12 * modify it under the terms of the GNU Library General Public | |
| 13 * License as published by the Free Software Foundation; either | |
| 14 * version 2 of the License, or (at your option) any later version. | |
| 15 * | |
| 16 * This library is distributed in the hope that it will be useful, | |
| 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 19 * Library General Public License for more details. | |
| 20 * | |
| 21 * You should have received a copy of the GNU Library General Public License | |
| 22 * along with this library; see the file COPYING.LIB. If not, write to | |
| 23 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 24 * Boston, MA 02110-1301, USA. | |
| 25 * | |
| 26 */ | |
| 27 | |
| 28 #ifndef ViewportDescription_h | |
| 29 #define ViewportDescription_h | |
| 30 | |
| 31 #include "platform/Length.h" | |
| 32 #include "platform/geometry/FloatSize.h" | |
| 33 | |
| 34 namespace blink { | |
| 35 | |
| 36 class LocalFrame; | |
| 37 | |
| 38 struct ViewportDescription { | |
| 39 | |
| 40 enum Type { | |
| 41 // These are ordered in increasing importance. | |
| 42 UserAgentStyleSheet, | |
| 43 HandheldFriendlyMeta, | |
| 44 MobileOptimizedMeta, | |
| 45 ViewportMeta, | |
| 46 AuthorStyleSheet | |
| 47 } type; | |
| 48 | |
| 49 enum { | |
| 50 ValueAuto = -1, | |
| 51 ValueDeviceWidth = -2, | |
| 52 ValueDeviceHeight = -3, | |
| 53 ValuePortrait = -4, | |
| 54 ValueLandscape = -5, | |
| 55 ValueDeviceDPI = -6, | |
| 56 ValueLowDPI = -7, | |
| 57 ValueMediumDPI = -8, | |
| 58 ValueHighDPI = -9, | |
| 59 ValueExtendToZoom = -10 | |
| 60 }; | |
| 61 | |
| 62 ViewportDescription(Type type = UserAgentStyleSheet) | |
| 63 : type(type) | |
| 64 , zoom(ValueAuto) | |
| 65 , minZoom(ValueAuto) | |
| 66 , maxZoom(ValueAuto) | |
| 67 , userZoom(true) | |
| 68 , orientation(ValueAuto) | |
| 69 , deprecatedTargetDensityDPI(ValueAuto) | |
| 70 , zoomIsExplicit(false) | |
| 71 , minZoomIsExplicit(false) | |
| 72 , maxZoomIsExplicit(false) | |
| 73 , userZoomIsExplicit(false) | |
| 74 { | |
| 75 } | |
| 76 | |
| 77 Length minWidth; | |
| 78 Length maxWidth; | |
| 79 Length minHeight; | |
| 80 Length maxHeight; | |
| 81 float zoom; | |
| 82 float minZoom; | |
| 83 float maxZoom; | |
| 84 bool userZoom; | |
| 85 float orientation; | |
| 86 float deprecatedTargetDensityDPI; // Only used for Android WebView | |
| 87 | |
| 88 // Whether the computed value was explicitly specified rather than being | |
| 89 // inferred. | |
| 90 bool zoomIsExplicit; | |
| 91 bool minZoomIsExplicit; | |
| 92 bool maxZoomIsExplicit; | |
| 93 bool userZoomIsExplicit; | |
| 94 | |
| 95 bool operator==(const ViewportDescription& other) const | |
| 96 { | |
| 97 // Used for figuring out whether to reset the viewport or not, | |
| 98 // thus we are not taking type into account. | |
| 99 return minWidth == other.minWidth | |
| 100 && maxWidth == other.maxWidth | |
| 101 && minHeight == other.minHeight | |
| 102 && maxHeight == other.maxHeight | |
| 103 && zoom == other.zoom | |
| 104 && minZoom == other.minZoom | |
| 105 && maxZoom == other.maxZoom | |
| 106 && userZoom == other.userZoom | |
| 107 && orientation == other.orientation | |
| 108 && deprecatedTargetDensityDPI == other.deprecatedTargetDensityDPI | |
| 109 && zoomIsExplicit == other.zoomIsExplicit | |
| 110 && minZoomIsExplicit == other.minZoomIsExplicit | |
| 111 && maxZoomIsExplicit == other.maxZoomIsExplicit | |
| 112 && userZoomIsExplicit == other.userZoomIsExplicit; | |
| 113 } | |
| 114 | |
| 115 bool operator!=(const ViewportDescription& other) const | |
| 116 { | |
| 117 return !(*this == other); | |
| 118 } | |
| 119 | |
| 120 bool isLegacyViewportType() const { return type >= HandheldFriendlyMeta && t
ype <= ViewportMeta; } | |
| 121 bool isMetaViewportType() const { return type == ViewportMeta; } | |
| 122 bool isSpecifiedByAuthor() const { return type != UserAgentStyleSheet; } | |
| 123 | |
| 124 // Reports UMA stat on whether the page is considered mobile or desktop and
what kind of | |
| 125 // mobile it is. Applies only to Android, must only be called once per page
load. | |
| 126 void reportMobilePageStats(const LocalFrame*) const; | |
| 127 | |
| 128 private: | |
| 129 enum Direction { Horizontal, Vertical }; | |
| 130 static float resolveViewportLength(const Length&, const FloatSize& initialVi
ewportSize, Direction); | |
| 131 }; | |
| 132 | |
| 133 } // namespace blink | |
| 134 | |
| 135 #endif // ViewportDescription_h | |
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Chromium Code Reviews
Issue 654693004:
Remove meta viewport and @viewport CSS rules. (Closed)
Base URL: git@github.com:domokit/mojo.git@master