Create a RegisterViewAssociate method in ViewManager

services/ui/view_manager/view_associate_table.cc

Index: services/ui/view_manager/view_associate_table.cc
diff --git a/services/ui/view_manager/view_associate_table.cc b/services/ui/view_manager/view_associate_table.cc
index 2088696f1a0193f8360a95b8d90c75dacd150a61..4acb4715b824652b43ca8abe458ebc056e7d897a 100644
--- a/services/ui/view_manager/view_associate_table.cc
+++ b/services/ui/view_manager/view_associate_table.cc
@@ -23,39 +23,56 @@ ViewAssociateTable::ViewAssociateTable() {}
 
 ViewAssociateTable::~ViewAssociateTable() {}
 
-void ViewAssociateTable::ConnectAssociates(
-    mojo::ApplicationImpl* app_impl,
+void ViewAssociateTable::RegisterViewAssociate(
     mojo::ui::ViewInspector* inspector,
-    const std::vector<std::string>& urls,
-    const AssociateConnectionErrorCallback& connection_error_callback) {
-  DCHECK(app_impl);
+    mojo::ui::ViewAssociatePtr associate,
+    mojo::InterfaceRequest<mojo::ui::ViewAssociateOwner>
+        view_associate_owner_request,
+    const mojo::String& label) {
   DCHECK(inspector);
+  DCHECK(associate.is_bound());
+
+  std::string sanitized_label =
+      label.get().substr(0, mojo::ui::kLabelMaxLength);
+  associates_.emplace_back(
+      new AssociateData(sanitized_label, associate.Pass(), this, inspector));
+  AssociateData* data = associates_.back().get();
+
+  data->BindOwner(view_associate_owner_request.Pass());
+
+  // Set it to use our error handler.
+  data->associate.set_connection_error_handler(
+      base::Bind(&ViewAssociateTable::OnAssociateConnectionError,
+                 base::Unretained(this), data));
+
+  data->associate_owner.set_connection_error_handler(
+      base::Bind(&ViewAssociateTable::OnAssociateOwnerConnectionError,
+                 base::Unretained(this), data));
+
+  // Connect the associate to our view inspector.
+  mojo::ui::ViewInspectorPtr inspector_ptr;
+  data->inspector_binding.Bind(GetProxy(&inspector_ptr));
+  data->associate->Connect(
+      inspector_ptr.Pass(),
+      base::Bind(&ViewAssociateTable::OnConnected, base::Unretained(this),
+                 pending_connection_count_));
+
+  // Wait for the associate to connect to our view inspector.
+  pending_connection_count_++;
+}
 
-  for (auto& url : urls) {
-    DVLOG(1) << "Connecting to view associate: url=" << url;
-    associates_.emplace_back(new AssociateData(url, inspector));
-    AssociateData* data = associates_.back().get();
-
-    mojo::ConnectToService(app_impl->shell(), url, GetProxy(&data->associate));
-    data->associate.set_connection_error_handler(
-        base::Bind(connection_error_callback, url));
-
-    mojo::ui::ViewInspectorPtr inspector;
-    data->inspector_binding.Bind(GetProxy(&inspector));
-    data->associate->Connect(
-        inspector.Pass(),
-        base::Bind(&ViewAssociateTable::OnConnected, base::Unretained(this),
-                   pending_connection_count_));
+void ViewAssociateTable::FinishedRegisteringViewAssociates() {
+  waiting_to_register_associates_ = false;
 
-    pending_connection_count_++;
-  }
+  // If no more pending connections, kick off deferred work
+  CompleteDeferredWorkIfReady();
 }
 
 void ViewAssociateTable::ConnectToViewService(
     mojo::ui::ViewTokenPtr view_token,
     const mojo::String& service_name,
     mojo::ScopedMessagePipeHandle client_handle) {
-  if (pending_connection_count_) {
+  if (waiting_to_register_associates_ || pending_connection_count_) {
     deferred_work_.push_back(
         base::Bind(&ViewAssociateTable::ConnectToViewService,
                    base::Unretained(this), base::Passed(view_token.Pass()),
@@ -68,7 +85,7 @@ void ViewAssociateTable::ConnectToViewService(
     if (Contains(data->info->view_service_names, service_name)) {
       DVLOG(2) << "Connecting to view service: view_token=" << view_token
                << ", service_name=" << service_name
-               << ", associate_url=" << data->url;
+               << ", associate_label=" << data->label;
       DCHECK(data->associate);
       data->associate->ConnectToViewService(view_token.Pass(), service_name,
                                             client_handle.Pass());
@@ -81,11 +98,42 @@ void ViewAssociateTable::ConnectToViewService(
   // Allow pipe to be closed as an indication of failure.
 }
 
+bool ViewAssociateTable::RemoveAssociateData(AssociateData* associate_data,
+                                             std::string& label) {
+  for (auto it = associates_.begin(); it != associates_.end(); it++) {
+    AssociateData* data = it->get();
+    if (associate_data == data) {
+      label = data->label;
+      associates_.erase(it);
+      return true;
+    }
+  }
+  return false;
+}
+
+void ViewAssociateTable::OnAssociateConnectionError(
+    AssociateData* associate_data) {
+  std::string label;
+  bool removed = RemoveAssociateData(associate_data, label);
+  DCHECK(removed);
+  DVLOG(2) << "ViewAssociate disconnected, removing from table"
+           << ", associate_label=" << label;
+}
+
+void ViewAssociateTable::OnAssociateOwnerConnectionError(
+    AssociateData* associate_data) {
+  std::string label;
+  bool removed = RemoveAssociateData(associate_data, label);
+  DCHECK(removed);
+  DVLOG(2) << "ViewAssociateOwner disconnected, removing from table"
+           << ", associate_label=" << label;
+}
+
 void ViewAssociateTable::ConnectToViewTreeService(
     mojo::ui::ViewTreeTokenPtr view_tree_token,
     const mojo::String& service_name,
     mojo::ScopedMessagePipeHandle client_handle) {
-  if (pending_connection_count_) {
+  if (waiting_to_register_associates_ || pending_connection_count_) {
     deferred_work_.push_back(
         base::Bind(&ViewAssociateTable::ConnectToViewTreeService,
                    base::Unretained(this), base::Passed(view_tree_token.Pass()),
@@ -98,7 +146,7 @@ void ViewAssociateTable::ConnectToViewTreeService(
     if (Contains(data->info->view_tree_service_names, service_name)) {
       DVLOG(2) << "Connecting to view tree service: view_tree_token="
                << view_tree_token << ", service_name=" << service_name
-               << ", associate_url=" << data->url;
+               << ", associate_label=" << data->label;
       DCHECK(data->associate);
       data->associate->ConnectToViewTreeService(
           view_tree_token.Pass(), service_name, client_handle.Pass());
@@ -117,28 +165,44 @@ void ViewAssociateTable::OnConnected(uint32_t index,
   DCHECK(pending_connection_count_);
   DCHECK(!associates_[index]->info);
 
-  DVLOG(1) << "Connected to view associate: url=" << associates_[index]->url
+  DVLOG(1) << "Connected to view associate: label=" << associates_[index]->label
            << ", info=" << info;
   associates_[index]->info = info.Pass();
 
   pending_connection_count_--;
-  if (!pending_connection_count_)
-    CompleteDeferredWork();
+  CompleteDeferredWorkIfReady();
 }
 
-void ViewAssociateTable::CompleteDeferredWork() {
-  DCHECK(!pending_connection_count_);
+void ViewAssociateTable::CompleteDeferredWorkIfReady() {
+  // We check to see if all the ViewAssociates have been registered, and if
+  // they connected to us. Otherwise, we keep the work deferred.
+  if (!waiting_to_register_associates_ && !pending_connection_count_) {
+    for (auto& work : deferred_work_)
+      work.Run();
+    deferred_work_.clear();
+  }
+}
 
-  for (auto& work : deferred_work_)
-    work.Run();
-  deferred_work_.clear();
+size_t ViewAssociateTable::associate_count() {
+  return associates_.size();
 }
 
 ViewAssociateTable::AssociateData::AssociateData(
-    const std::string& url,
+    const std::string& label,
+    mojo::ui::ViewAssociatePtr associate,
+    mojo::ui::ViewAssociateOwner* associate_owner_impl,
     mojo::ui::ViewInspector* inspector)
-    : url(url), inspector_binding(inspector) {}
+    : label(label),
+      associate(associate.Pass()),
+      associate_owner(associate_owner_impl),
+      inspector_binding(inspector) {}
 
 ViewAssociateTable::AssociateData::~AssociateData() {}
 
+void ViewAssociateTable::AssociateData::BindOwner(
+    mojo::InterfaceRequest<mojo::ui::ViewAssociateOwner>
+        view_associate_owner_request) {
+  associate_owner.Bind(view_associate_owner_request.Pass());
+}
+
 }  // namespace view_manager