mash: Port ash_sysui app list presenter to mojo:ash.

ash/sysui/app_list_presenter_mus.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/sysui/app_list_presenter_mus.h"
-
-#include "services/shell/public/cpp/connector.h"
-
-namespace ash {
-namespace {
-
-// TODO(mfomitchev): Remove when http://crbug.com/607300 is fixed.
-// This method should not exist. Sys_ui has different display ids because it
-// uses ScreenAsh instead of ScreenMus.
-int64_t GetMusDisplayId(int64_t sysui_display_id) {
-  return 1;
-}
-
-bool HasConnection(app_list::mojom::AppListPresenterPtr* interface_ptr) {
-  return interface_ptr->is_bound() && !interface_ptr->encountered_error();
-}
-
-}  // namespace
-
-AppListPresenterMus::AppListPresenterMus(::shell::Connector* connector)
-    : connector_(connector) {
-  ConnectIfNeeded();
-}
-
-AppListPresenterMus::~AppListPresenterMus() {}
-
-void AppListPresenterMus::Show(int64_t display_id) {
-  display_id = GetMusDisplayId(display_id);
-  presenter_->Show(display_id);
-}
-
-void AppListPresenterMus::Dismiss() {
-  ConnectIfNeeded();
-  presenter_->Dismiss();
-}
-
-void AppListPresenterMus::ToggleAppList(int64_t display_id) {
-  display_id = GetMusDisplayId(display_id);
-  ConnectIfNeeded();
-  presenter_->ToggleAppList(display_id);
-}
-
-bool AppListPresenterMus::IsVisible() const {
-  return false;
-}
-
-bool AppListPresenterMus::GetTargetVisibility() const {
-  // TODO(mfomitchev): we have GetTargetVisibility() in mojom, but this
-  // shouldn't be a synchronous method. We should go through the call sites and
-  // either teach them to use a callback, or perhaps use a visibility observer.
-  //  NOTIMPLEMENTED();
-  return false;
-}
-
-bool AppListPresenterMus::ConnectIfNeeded() {
-  if (HasConnection(&presenter_))
-    return true;
-  connector_->ConnectToInterface("exe:chrome", &presenter_);
-  CHECK(HasConnection(&presenter_))
-      << "Could not connect to app_list::mojom::AppListPresenter.";
-  return true;
-}
-
-}  // namespace ash