ppapi/shared_impl/ppb_view_shared.cc

   1 // Copyright (c) 2012 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 #include "ppapi/shared_impl/ppb_view_shared.h"
   6
   7 namespace {
   8
   9 bool IsRectNonempty(const PP_Rect& rect) {
  10   return rect.size.width > 0 && rect.size.height > 0;
  11 }
  12
  13 }  // namespace
  14
  15 namespace ppapi {
  16
  17 ViewData::ViewData() {
  18   // Assume POD.
  19   memset(this, 0, sizeof(ViewData));
  20
  21   device_scale = 1.0f;
  22   css_scale = 1.0f;
  23 }
  24
  25 ViewData::~ViewData() {}
  26
  27 bool ViewData::Equals(const ViewData& other) const {
  28   return rect.point.x == other.rect.point.x &&
  29          rect.point.y == other.rect.point.y &&
  30          rect.size.width == other.rect.size.width &&
  31          rect.size.height == other.rect.size.height &&
  32          is_fullscreen == other.is_fullscreen &&
  33          is_page_visible == other.is_page_visible &&
  34          clip_rect.point.x == other.clip_rect.point.x &&
  35          clip_rect.point.y == other.clip_rect.point.y &&
  36          clip_rect.size.width == other.clip_rect.size.width &&
  37          clip_rect.size.height == other.clip_rect.size.height &&
  38          device_scale == other.device_scale && css_scale == other.css_scale &&
  39          scroll_offset.x == other.scroll_offset.x &&
  40          scroll_offset.y == other.scroll_offset.y;
  41 }
  42
  43 PPB_View_Shared::PPB_View_Shared(ResourceObjectType type,
  44                                  PP_Instance instance,
  45                                  const ViewData& data)
  46     : Resource(type, instance), data_(data) {}
  47
  48 PPB_View_Shared::~PPB_View_Shared() {}
  49
  50 thunk::PPB_View_API* PPB_View_Shared::AsPPB_View_API() { return this; }
  51
  52 const ViewData& PPB_View_Shared::GetData() const { return data_; }
  53
  54 PP_Bool PPB_View_Shared::GetRect(PP_Rect* viewport) const {
  55   if (!viewport)
  56     return PP_FALSE;
  57   *viewport = data_.rect;
  58   return PP_TRUE;
  59 }
  60
  61 PP_Bool PPB_View_Shared::IsFullscreen() const {
  62   return PP_FromBool(data_.is_fullscreen);
  63 }
  64
  65 PP_Bool PPB_View_Shared::IsVisible() const {
  66   return PP_FromBool(data_.is_page_visible && IsRectNonempty(data_.clip_rect));
  67 }
  68
  69 PP_Bool PPB_View_Shared::IsPageVisible() const {
  70   return PP_FromBool(data_.is_page_visible);
  71 }
  72
  73 PP_Bool PPB_View_Shared::GetClipRect(PP_Rect* clip) const {
  74   if (!clip)
  75     return PP_FALSE;
  76   *clip = data_.clip_rect;
  77   return PP_TRUE;
  78 }
  79
  80 float PPB_View_Shared::GetDeviceScale() const { return data_.device_scale; }
  81
  82 float PPB_View_Shared::GetCSSScale() const { return data_.css_scale; }
  83
  84 PP_Bool PPB_View_Shared::GetScrollOffset(PP_Point* scroll_offset) const {
  85   if (!scroll_offset)
  86     return PP_FALSE;
  87   *scroll_offset = data_.scroll_offset;
  88   return PP_TRUE;
  89 }
  90
  91 }  // namespace ppapi