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
7namespace {
8
9bool IsRectNonempty(const PP_Rect& rect) {
10  return rect.size.width > 0 && rect.size.height > 0;
11}
12
13}  // namespace
14
15namespace ppapi {
16
17ViewData::ViewData() {
18  // Assume POD.
19  memset(this, 0, sizeof(ViewData));
20
21  device_scale = 1.0f;
22  css_scale = 1.0f;
23}
24
25ViewData::~ViewData() {}
26
27bool 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
43PPB_View_Shared::PPB_View_Shared(ResourceObjectType type,
44                                 PP_Instance instance,
45                                 const ViewData& data)
46    : Resource(type, instance), data_(data) {}
47
48PPB_View_Shared::~PPB_View_Shared() {}
49
50thunk::PPB_View_API* PPB_View_Shared::AsPPB_View_API() { return this; }
51
52const ViewData& PPB_View_Shared::GetData() const { return data_; }
53
54PP_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
61PP_Bool PPB_View_Shared::IsFullscreen() const {
62  return PP_FromBool(data_.is_fullscreen);
63}
64
65PP_Bool PPB_View_Shared::IsVisible() const {
66  return PP_FromBool(data_.is_page_visible && IsRectNonempty(data_.clip_rect));
67}
68
69PP_Bool PPB_View_Shared::IsPageVisible() const {
70  return PP_FromBool(data_.is_page_visible);
71}
72
73PP_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
80float PPB_View_Shared::GetDeviceScale() const { return data_.device_scale; }
81
82float PPB_View_Shared::GetCSSScale() const { return data_.css_scale; }
83
84PP_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
92