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      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/cpp/view.h"
      6 
      7 #include "ppapi/c/ppb_view.h"
      8 #include "ppapi/cpp/module_impl.h"
      9 
     10 namespace pp {
     11 
     12 namespace {
     13 
     14 template <> const char* interface_name<PPB_View_1_0>() {
     15   return PPB_VIEW_INTERFACE_1_0;
     16 }
     17 
     18 template <> const char* interface_name<PPB_View_1_1>() {
     19   return PPB_VIEW_INTERFACE_1_1;
     20 }
     21 
     22 template <> const char* interface_name<PPB_View_1_2>() {
     23   return PPB_VIEW_INTERFACE_1_2;
     24 }
     25 
     26 }  // namespace
     27 
     28 View::View() : Resource() {
     29 }
     30 
     31 View::View(PP_Resource view_resource) : Resource(view_resource) {
     32 }
     33 
     34 Rect View::GetRect() const {
     35   PP_Rect out;
     36   if (has_interface<PPB_View_1_2>()) {
     37     if (PP_ToBool(get_interface<PPB_View_1_2>()->GetRect(pp_resource(), &out)))
     38       return Rect(out);
     39   } else if (has_interface<PPB_View_1_1>()) {
     40     if (PP_ToBool(get_interface<PPB_View_1_1>()->GetRect(pp_resource(), &out)))
     41       return Rect(out);
     42   } else if (has_interface<PPB_View_1_0>()) {
     43     if (PP_ToBool(get_interface<PPB_View_1_0>()->GetRect(pp_resource(), &out)))
     44       return Rect(out);
     45   }
     46   return Rect();
     47 }
     48 
     49 bool View::IsFullscreen() const {
     50   if (has_interface<PPB_View_1_2>()) {
     51     return PP_ToBool(get_interface<PPB_View_1_2>()->IsFullscreen(
     52         pp_resource()));
     53   } else if (has_interface<PPB_View_1_1>()) {
     54     return PP_ToBool(get_interface<PPB_View_1_1>()->IsFullscreen(
     55         pp_resource()));
     56   } else if (has_interface<PPB_View_1_0>()) {
     57     return PP_ToBool(get_interface<PPB_View_1_0>()->IsFullscreen(
     58         pp_resource()));
     59   }
     60   return false;
     61 }
     62 
     63 bool View::IsVisible() const {
     64   if (has_interface<PPB_View_1_2>())
     65     return PP_ToBool(get_interface<PPB_View_1_2>()->IsVisible(pp_resource()));
     66   else if (has_interface<PPB_View_1_1>())
     67     return PP_ToBool(get_interface<PPB_View_1_1>()->IsVisible(pp_resource()));
     68   else if (has_interface<PPB_View_1_0>())
     69     return PP_ToBool(get_interface<PPB_View_1_0>()->IsVisible(pp_resource()));
     70   return false;
     71 }
     72 
     73 bool View::IsPageVisible() const {
     74   if (has_interface<PPB_View_1_2>()) {
     75     return PP_ToBool(get_interface<PPB_View_1_2>()->IsPageVisible(
     76         pp_resource()));
     77   } else if (has_interface<PPB_View_1_1>()) {
     78     return PP_ToBool(get_interface<PPB_View_1_1>()->IsPageVisible(
     79         pp_resource()));
     80   } else if (has_interface<PPB_View_1_0>()) {
     81     return PP_ToBool(get_interface<PPB_View_1_0>()->IsPageVisible(
     82         pp_resource()));
     83   }
     84   return true;
     85 }
     86 
     87 Rect View::GetClipRect() const {
     88   PP_Rect out;
     89   if (has_interface<PPB_View_1_2>()) {
     90     if (PP_ToBool(get_interface<PPB_View_1_2>()->GetClipRect(pp_resource(),
     91                                                              &out)))
     92       return Rect(out);
     93   } else if (has_interface<PPB_View_1_1>()) {
     94     if (PP_ToBool(get_interface<PPB_View_1_1>()->GetClipRect(pp_resource(),
     95                                                              &out)))
     96       return Rect(out);
     97   } else if (has_interface<PPB_View_1_0>()) {
     98     if (PP_ToBool(get_interface<PPB_View_1_0>()->GetClipRect(pp_resource(),
     99                                                              &out)))
    100       return Rect(out);
    101   }
    102   return Rect();
    103 }
    104 
    105 float View::GetDeviceScale() const {
    106   if (has_interface<PPB_View_1_2>())
    107     return get_interface<PPB_View_1_2>()->GetDeviceScale(pp_resource());
    108   else if (has_interface<PPB_View_1_1>())
    109     return get_interface<PPB_View_1_1>()->GetDeviceScale(pp_resource());
    110   return 1.0f;
    111 }
    112 
    113 float View::GetCSSScale() const {
    114   if (has_interface<PPB_View_1_2>())
    115     return get_interface<PPB_View_1_2>()->GetCSSScale(pp_resource());
    116   else if (has_interface<PPB_View_1_1>())
    117     return get_interface<PPB_View_1_1>()->GetCSSScale(pp_resource());
    118   return 1.0f;
    119 }
    120 
    121 Point View::GetScrollOffset() const {
    122   PP_Point out;
    123   if (has_interface<PPB_View_1_2>()) {
    124     if (PP_ToBool(get_interface<PPB_View_1_2>()->GetScrollOffset(pp_resource(),
    125                                                                  &out))) {
    126       return Point(out);
    127     }
    128   }
    129   return Point();
    130 }
    131 
    132 }  // namespace pp
    133