components/html_viewer/document_resource_waiter.cc

   1 // Copyright 2015 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 "components/html_viewer/document_resource_waiter.h"
   6
   7 #include "components/html_viewer/global_state.h"
   8 #include "components/html_viewer/html_document_oopif.h"
   9 #include "components/html_viewer/html_frame_tree_manager.h"
  10 #include "components/view_manager/public/cpp/view.h"
  11
  12 using web_view::ViewConnectType;
  13
  14 namespace html_viewer {
  15
  16 DocumentResourceWaiter::DocumentResourceWaiter(GlobalState* global_state,
  17                                                mojo::URLResponsePtr response,
  18                                                HTMLDocumentOOPIF* document)
  19     : global_state_(global_state),
  20       document_(document),
  21       response_(response.Pass()),
  22       root_(nullptr),
  23       change_id_(0u),
  24       view_id_(0u),
  25       view_connect_type_(web_view::VIEW_CONNECT_TYPE_USE_NEW),
  26       frame_tree_client_binding_(this) {}
  27
  28 DocumentResourceWaiter::~DocumentResourceWaiter() {
  29 }
  30
  31 void DocumentResourceWaiter::Release(
  32     mojo::InterfaceRequest<web_view::FrameTreeClient>*
  33         frame_tree_client_request,
  34     web_view::FrameTreeServerPtr* frame_tree_server,
  35     mojo::Array<web_view::FrameDataPtr>* frame_data,
  36     uint32_t* change_id,
  37     uint32_t* view_id,
  38     ViewConnectType* view_connect_type,
  39     OnConnectCallback* on_connect_callback) {
  40   DCHECK(IsReady());
  41   *frame_tree_client_request = frame_tree_client_request_.Pass();
  42   *frame_tree_server = server_.Pass();
  43   *frame_data = frame_data_.Pass();
  44   *change_id = change_id_;
  45   *view_id = view_id_;
  46   *view_connect_type = view_connect_type_;
  47   *on_connect_callback = on_connect_callback_;
  48 }
  49
  50 mojo::URLResponsePtr DocumentResourceWaiter::ReleaseURLResponse() {
  51   return response_.Pass();
  52 }
  53
  54 bool DocumentResourceWaiter::IsReady() const {
  55   return (!frame_data_.is_null() &&
  56           ((view_connect_type_ == web_view::VIEW_CONNECT_TYPE_USE_EXISTING) ||
  57            (root_ && root_->viewport_metrics().device_pixel_ratio != 0.0f)));
  58 }
  59
  60 void DocumentResourceWaiter::Bind(
  61     mojo::InterfaceRequest<web_view::FrameTreeClient> request) {
  62   if (frame_tree_client_binding_.is_bound() || !frame_data_.is_null()) {
  63     DVLOG(1) << "Request for FrameTreeClient after already supplied one";
  64     return;
  65   }
  66   frame_tree_client_binding_.Bind(request.Pass());
  67 }
  68
  69 void DocumentResourceWaiter::OnConnect(
  70     web_view::FrameTreeServerPtr server,
  71     uint32_t change_id,
  72     uint32_t view_id,
  73     ViewConnectType view_connect_type,
  74     mojo::Array<web_view::FrameDataPtr> frame_data,
  75     const OnConnectCallback& callback) {
  76   DCHECK(frame_data_.is_null());
  77   change_id_ = change_id;
  78   view_id_ = view_id;
  79   view_connect_type_ = view_connect_type;
  80   server_ = server.Pass();
  81   frame_data_ = frame_data.Pass();
  82   on_connect_callback_ = callback;
  83   CHECK(frame_data_.size() > 0u);
  84   frame_tree_client_request_ = frame_tree_client_binding_.Unbind();
  85   if (IsReady())
  86     document_->LoadIfNecessary();
  87 }
  88
  89 void DocumentResourceWaiter::OnFrameAdded(uint32_t change_id,
  90                                           web_view::FrameDataPtr frame_data) {
  91   // It is assumed we receive OnConnect() (which unbinds) before anything else.
  92   NOTREACHED();
  93 }
  94
  95 void DocumentResourceWaiter::OnFrameRemoved(uint32_t change_id,
  96                                             uint32_t frame_id) {
  97   // It is assumed we receive OnConnect() (which unbinds) before anything else.
  98   NOTREACHED();
  99 }
 100
 101 void DocumentResourceWaiter::OnFrameClientPropertyChanged(
 102     uint32_t frame_id,
 103     const mojo::String& name,
 104     mojo::Array<uint8_t> new_value) {
 105   // It is assumed we receive OnConnect() (which unbinds) before anything else.
 106   NOTREACHED();
 107 }
 108
 109 void DocumentResourceWaiter::OnPostMessageEvent(
 110     uint32_t source_frame_id,
 111     uint32_t target_frame_id,
 112     web_view::HTMLMessageEventPtr event) {
 113   // It is assumed we receive OnConnect() (which unbinds) before anything else.
 114   NOTREACHED();
 115 }
 116
 117 void DocumentResourceWaiter::OnWillNavigate(uint32_t target_frame_id) {
 118   // It is assumed we receive OnConnect() (which unbinds) before anything else.
 119   NOTIMPLEMENTED();
 120 }
 121
 122 }  // namespace html_viewer