Make mash register initial batch of accelerators in single shot.

ash/mus/accelerators/accelerator_controller_registrar.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/mus/accelerators/accelerator_controller_registrar.h"
 
 #include <limits>
 
 #include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/accelerators/accelerator_router.h"
@@ skipping 10 matching lines @@
 namespace {
 
 // Callback from registering the accelerator.
 void OnAcceleratorAdded(const ui::Accelerator& accelerator, bool added) {
   // All our accelerators should be registered, so we expect |added| to be true.
   DCHECK(added) << "duplicate accelerator key_code=" << accelerator.key_code()
                 << " type=" << accelerator.type()
                 << " modifiers=" << accelerator.modifiers();
 }
 
+// Callback from registering the accelerators.
+void OnAcceleratorsAdded(const std::vector<ui::Accelerator>& ui_accelerators,
+                         bool added) {
+  for (auto iter = ui_accelerators.begin(); iter != ui_accelerators.end();

[mfomitchev, 2017/01/03 19:54:35]

We still need the DCHECK here, even though we don't know which accelerator
caused the failure. The logging you added on Mus side is simply logging and not
a DCHECK (as it should be), so if we remove the DCHECK here, we lose error
detection.

+       ++iter)
+    OnAcceleratorAdded(*iter, added);
 }  // namespace
+}
 
 AcceleratorControllerRegistrar::AcceleratorControllerRegistrar(
     WindowManager* window_manager,
     uint16_t id_namespace)
     : window_manager_(window_manager),
       id_namespace_(id_namespace),
       next_id_(0),
       router_(new AcceleratorRouter) {
   window_manager_->AddAcceleratorHandler(id_namespace, this);
 }
@@ skipping 50 matching lines @@
                ? ui::mojom::EventResult::HANDLED
                : ui::mojom::EventResult::UNHANDLED;
   }
   DCHECK_EQ(GetAcceleratorLocalId(id), ids.post_id);
   // NOTE: for post return value doesn't really matter.
   return WmShell::Get()->accelerator_controller()->Process(accelerator)
              ? ui::mojom::EventResult::HANDLED
              : ui::mojom::EventResult::UNHANDLED;
 }
 
-void AcceleratorControllerRegistrar::OnAcceleratorRegistered(
-    const ui::Accelerator& accelerator) {
+void AcceleratorControllerRegistrar::AddAcceleratorToVector(
+    const ui::Accelerator& accelerator,
+    std::vector<ui::mojom::AcceleratorPtr>& accelerator_vector) {
   Ids ids;
   if (!GenerateIds(&ids)) {
     DVLOG(1) << "max number of accelerators registered, dropping request";
     return;
   }
   DCHECK_EQ(0u, accelerator_to_ids_.count(accelerator));
   accelerator_to_ids_[accelerator] = ids;
   DCHECK_EQ(accelerator_to_ids_.size() * 2, ids_.size());
 
   ui::mojom::EventMatcherPtr event_matcher = ui::CreateKeyMatcher(

[mfomitchev, 2017/01/03 19:54:35]

Nit: rename to pre_event_matcher to be consistent?

       static_cast<ui::mojom::KeyboardCode>(accelerator.key_code()),
       accelerator.modifiers());
   event_matcher->accelerator_phase = ui::mojom::AcceleratorPhase::PRE_TARGET;
   DCHECK(accelerator.type() == ui::ET_KEY_PRESSED ||
          accelerator.type() == ui::ET_KEY_RELEASED);
   event_matcher->type_matcher->type = accelerator.type() == ui::ET_KEY_PRESSED
                                           ? ui::mojom::EventType::KEY_PRESSED
                                           : ui::mojom::EventType::KEY_RELEASED;
 
   ui::mojom::EventMatcherPtr post_event_matcher = event_matcher.Clone();
   post_event_matcher->accelerator_phase =
       ui::mojom::AcceleratorPhase::POST_TARGET;
 
-  window_manager_->window_manager_client()->AddAccelerators(
-      ui::CreateAcceleratorVector(
-          ComputeAcceleratorId(id_namespace_, ids.pre_id),
-          std::move(event_matcher)),
-      base::Bind(OnAcceleratorAdded, accelerator));
+  accelerator_vector.push_back(
+      ui::CreateAccelerator(ComputeAcceleratorId(id_namespace_, ids.pre_id),
+                            std::move(event_matcher)));
+
+  accelerator_vector.push_back(
+      ui::CreateAccelerator(ComputeAcceleratorId(id_namespace_, ids.post_id),
+                            std::move(post_event_matcher)));
+}
+
+void AcceleratorControllerRegistrar::OnAcceleratorsRegistered(
+    const std::vector<ui::Accelerator>& accelerators) {
+  std::vector<ui::mojom::AcceleratorPtr> accelerator_vector;
+
+  for (auto iter = accelerators.begin(); iter != accelerators.end(); ++iter)
+    AddAcceleratorToVector(*iter, accelerator_vector);
 
   window_manager_->window_manager_client()->AddAccelerators(
-      ui::CreateAcceleratorVector(
-          ComputeAcceleratorId(id_namespace_, ids.post_id),
-          std::move(post_event_matcher)),
+      std::move(accelerator_vector),
+      base::Bind(OnAcceleratorsAdded, accelerators));
+}
+
+// add_accelerator_immediately default set to true.
+void AcceleratorControllerRegistrar::OnAcceleratorRegistered(
+    const ui::Accelerator& accelerator) {
+  std::vector<ui::mojom::AcceleratorPtr> accelerator_vector;
+
+  AddAcceleratorToVector(accelerator, accelerator_vector);
+
+  window_manager_->window_manager_client()->AddAccelerators(
+      std::move(accelerator_vector),
       base::Bind(OnAcceleratorAdded, accelerator));
 }
 
 void AcceleratorControllerRegistrar::OnAcceleratorUnregistered(
     const ui::Accelerator& accelerator) {
   auto iter = accelerator_to_ids_.find(accelerator);
   DCHECK(iter != accelerator_to_ids_.end());
   Ids ids = iter->second;
   accelerator_to_ids_.erase(iter);
   ids_.erase(ids.pre_id);
@@ skipping 18 matching lines @@
   // Common case is we never wrap once, so this is typically cheap. Additionally
   // we expect there not to be too many accelerators.
   while (ids_.count(next_id_) > 0)
     ++next_id_;
   ids_.insert(next_id_);
   return next_id_++;
 }
 
 }  // namespace mus
 }  // namespace ash