alloy: Use Views context menus on Windows/Linux (fixes issue #3330)

libcef/browser/native/menu_runner_views_aura.cc

@@ -0,0 +1,52 @@
+// Copyright 2014 The Chromium Embedded Framework 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 "libcef/browser/native/menu_runner_views_aura.h"
+
+#include "libcef/browser/alloy/alloy_browser_host_impl.h"
+
+#include "base/strings/string_util.h"
+#include "ui/gfx/geometry/point.h"
+
+CefMenuRunnerViewsAura::CefMenuRunnerViewsAura() {}
+
+bool CefMenuRunnerViewsAura::RunContextMenu(
+    AlloyBrowserHostImpl* browser,
+    CefMenuModelImpl* model,
+    const content::ContextMenuParams& params) {
+  views::Widget* widget = nullptr;
+  gfx::AcceleratedWidget parent_widget = gfx::kNullAcceleratedWidget;
+  if (browser->IsWindowless()) {
+    parent_widget = browser->GetWindowHandle();
+    if (!parent_widget) {
+      LOG(ERROR) << "Window handle is required for default OSR context menu.";
+      return false;
+    }
+  } else {
+    widget = browser->GetWindowWidget();
+  }
+
+  menu_.reset(
+      new views::MenuRunner(model->model(), views::MenuRunner::CONTEXT_MENU));
+
+  gfx::Point screen_point = browser->GetScreenPoint(
+      gfx::Point(params.x, params.y), /*want_dip_coords=*/true);
+
+  menu_->RunMenuAt(widget, nullptr, gfx::Rect(screen_point, gfx::Size()),
+                   views::MenuAnchorPosition::kTopRight, ui::MENU_SOURCE_NONE,
+                   /*native_view_for_gestures=*/nullptr, parent_widget);
+
+  return true;
+}
+
+void CefMenuRunnerViewsAura::CancelContextMenu() {
+  if (menu_)
+    menu_->Cancel();
+}
+
+bool CefMenuRunnerViewsAura::FormatLabel(std::u16string& label) {
+  // Remove the accelerator indicator (&) from label strings.
+  const std::u16string::value_type replace[] = {u'&', 0};
+  return base::ReplaceChars(label, replace, std::u16string(), &label);
+}