third_party/WebKit/public/web/WebDeviceEmulationParams.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef WebDeviceEmulationParams_h
   6 #define WebDeviceEmulationParams_h
   7
   8 #include "../platform/WebFloatPoint.h"
   9 #include "../platform/WebPoint.h"
  10 #include "../platform/WebRect.h"
  11 #include "../platform/WebSize.h"
  12
  13 namespace blink {
  14
  15 // All sizes are measured in device independent pixels.
  16 struct WebDeviceEmulationParams {
  17     // For mobile, |screenSize| and |viewPosition| are used.
  18     // For desktop, screen size and view position are preserved.
  19     enum ScreenPosition {
  20         Desktop,
  21         Mobile,
  22         ScreenPositionLast = Mobile
  23     };
  24
  25     ScreenPosition screenPosition;
  26
  27     // Emulated screen size. Used with |screenPosition == Mobile|.
  28     WebSize screenSize;
  29
  30     // Position of view on the screen. Used with |screenPosition == Mobile|.
  31     WebPoint viewPosition;
  32
  33     // If zero, the original device scale factor is preserved.
  34     float deviceScaleFactor;
  35
  36     // Emulated view size. Empty size means no override.
  37     WebSize viewSize;
  38
  39     // Whether emulated view should be scaled down if necessary to fit into available space.
  40     bool fitToView;
  41
  42     // Offset of emulated view inside available space, not in fit to view mode.
  43     WebFloatPoint offset;
  44
  45     // Scale of emulated view inside available space, not in fit to view mode.
  46     float scale;
  47
  48     WebDeviceEmulationParams()
  49         : screenPosition(Desktop)
  50         , deviceScaleFactor(0)
  51         , fitToView(false)
  52         , scale(1) { }
  53 };
  54
  55 inline bool operator==(const WebDeviceEmulationParams& a, const WebDeviceEmulationParams& b)
  56 {
  57     return a.screenPosition == b.screenPosition && a.screenSize == b.screenSize && a.viewPosition == b.viewPosition && a.deviceScaleFactor == b.deviceScaleFactor && a.viewSize == b.viewSize && a.fitToView == b.fitToView && a.offset == b.offset && a.scale == b.scale;
  58 }
  59
  60 inline bool operator!=(const WebDeviceEmulationParams& a, const WebDeviceEmulationParams& b)
  61 {
  62     return !(a == b);
  63 }
  64
  65 } // namespace blink
  66
  67 #endif