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