Extending the Views-on-Mac experiment: whole app list grid.

ui/views_core/menu_runner_mac.mm

+// Copyright 2013 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 "ui/views/controls/menu/menu_runner.h"
+
+#include <Cocoa/Cocoa.h>
+
+#include "base/mac/scoped_nsobject.h"
+#include "base/time/time.h"
+#include "ui/base/cocoa/menu_controller.h"
+#include "ui/base/models/menu_model.h"
+#include "ui/events/event_utils.h"
+#include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/mac/point_utils.h"
+
+namespace views {
+
+class MenuModelAdapter {};
+class MenuRunnerHandler {};
+
+namespace internal {
+
+// Manages the menu. To destroy a MenuRunnerImpl invoke Release(). Release()
+// deletes immediately if the menu isn't showing. If the menu is showing
+// Release() cancels the menu and when the nested RunMenuAt() call returns
+// deletes itself and the menu.
+class MenuRunnerImpl {
+ public:
+  explicit MenuRunnerImpl(ui::MenuModel* menu_model);
+
+  NSMenu* menu() { return [menu_controller_ menu]; }
+
+  bool running() const { return [menu_controller_ isMenuOpen]; }
+
+  void Release() { menu_controller_.reset(); }
+
+  // Runs the menu.
+  MenuRunner::RunResult RunMenuAt(Widget* parent,
+                                  MenuButton* button,
+                                  const gfx::Rect& bounds,
+                                  ui::MenuAnchorPosition anchor,
+                                  int32 types) WARN_UNUSED_RESULT;
+
+  void Cancel() { [menu_controller_ cancel]; }
+
+  // Returns the time from the event which closed the menu - or 0.
+  base::TimeDelta closing_event_time() const {
+    return closing_event_time_;
+  }
+
+ private:
+  // The Cocoa menu controller that this instance is bridging.
+  base::scoped_nsobject<MenuController> menu_controller_;
+
+  // The timestamp of the event which closed the menu - or 0.
+  base::TimeDelta closing_event_time_;
+
+  DISALLOW_COPY_AND_ASSIGN(MenuRunnerImpl);
+};
+
+MenuRunnerImpl::MenuRunnerImpl(ui::MenuModel* menu)
+    : closing_event_time_(base::TimeDelta()) {
+  menu_controller_.reset([[MenuController alloc] initWithModel:menu
+                                        useWithPopUpButtonCell:NO]);
+}
+
+MenuRunner::RunResult MenuRunnerImpl::RunMenuAt(
+    Widget* parent,
+    MenuButton* button,
+    const gfx::Rect& bounds,
+    ui::MenuAnchorPosition anchor,
+    int32 types) {
+  closing_event_time_ = base::TimeDelta();
+  // TODO(tapted): Ensure this is OK with being invoked while already running().
+
+  if ((types & MenuRunner::FOR_DROP) != 0) {
+    NOTIMPLEMENTED();
+    return MenuRunner::NORMAL_EXIT;
+  }
+
+  [menu() popUpMenuPositioningItem:nil
+                        atLocation:ScreenPointToNSPoint(bounds.origin())
+                            inView:nil];
+
+  // Get the time of the event which closed this menu.
+  closing_event_time_ = ui::EventTimeForNow();
+  return MenuRunner::NORMAL_EXIT;
+}
+
+}  // namespace internal
+
+MenuRunner::MenuRunner(ui::MenuModel* menu_model)
+    : holder_(new internal::MenuRunnerImpl(menu_model)) {
+}
+
+MenuRunner::MenuRunner(MenuItemView* menu) {
+  NOTIMPLEMENTED();
+}
+
+MenuRunner::~MenuRunner() {
+  holder_->Release();
+}
+
+MenuItemView* MenuRunner::GetMenu() {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+template<>
+MenuRunner::RunResult MenuRunner::RunMenuAt(Widget* parent,
+                                            MenuButton* button,
+                                            const gfx::Rect& bounds,
+                                            ui::MenuAnchorPosition anchor,
+                                            ui::MenuSourceType source_type,
+                                            int32 types) {
+  // TODO(tapted): See if we need a DisplayChangeListener.
+
+  // TODO(tapted): Adjust the anchor for context menu / touch, if Cocoa can't be
+  // trusted to do it.
+
+  return holder_->RunMenuAt(parent, button, bounds, anchor, types);
+}
+
+bool MenuRunner::IsRunning() const {
+  return holder_->running();
+}
+
+void MenuRunner::Cancel() {
+  holder_->Cancel();
+}
+
+base::TimeDelta MenuRunner::closing_event_time() const {
+  return holder_->closing_event_time();
+}
+
+void MenuRunner::SetRunnerHandler(
+    scoped_ptr<MenuRunnerHandler> runner_handler) {
+  NOTIMPLEMENTED();
+}
+
+}  // namespace views