fix: enable navigator.setAppBadge/clearAppBadge (#27067)

shell/browser/badging/badge_manager.cc

@@ -0,0 +1,81 @@
+// Copyright 2018 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 "shell/browser/badging/badge_manager.h"
+
+#include <tuple>
+#include <utility>
+
+#include "base/i18n/number_formatting.h"
+#include "base/strings/utf_string_conversions.h"
+#include "build/build_config.h"
+#include "content/public/browser/browser_task_traits.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/render_frame_host.h"
+#include "content/public/browser/render_process_host.h"
+#include "content/public/browser/web_contents.h"
+#include "shell/browser/badging/badge_manager_factory.h"
+#include "shell/browser/browser.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/strings/grit/ui_strings.h"
+
+namespace badging {
+
+BadgeManager::BadgeManager() = default;
+BadgeManager::~BadgeManager() = default;
+
+// static
+void BadgeManager::BindFrameReceiver(
+    content::RenderFrameHost* frame,
+    mojo::PendingReceiver<blink::mojom::BadgeService> receiver) {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+
+  auto* browser_context =
+      content::WebContents::FromRenderFrameHost(frame)->GetBrowserContext();
+
+  auto* badge_manager =
+      badging::BadgeManagerFactory::GetInstance()->GetForBrowserContext(
+          browser_context);
+  if (!badge_manager)
+    return;
+
+  auto context = std::make_unique<FrameBindingContext>(
+      frame->GetProcess()->GetID(), frame->GetRoutingID());
+
+  badge_manager->receivers_.Add(badge_manager, std::move(receiver),
+                                std::move(context));
+}
+
+std::string BadgeManager::GetBadgeString(base::Optional<int> badge_content) {
+  if (!badge_content)
+    return "•";
+
+  if (badge_content > kMaxBadgeContent) {
+    return base::UTF16ToUTF8(l10n_util::GetStringFUTF16(
+        IDS_SATURATED_BADGE_CONTENT, base::FormatNumber(kMaxBadgeContent)));
+  }
+
+  return base::UTF16ToUTF8(base::FormatNumber(badge_content.value()));
+}
+
+void BadgeManager::SetBadge(blink::mojom::BadgeValuePtr mojo_value) {
+  if (mojo_value->is_number() && mojo_value->get_number() == 0) {
+    mojo::ReportBadMessage(
+        "|value| should not be zero when it is |number| (ClearBadge should be "
+        "called instead)!");
+    return;
+  }
+
+  base::Optional<int> value =
+      mojo_value->is_flag() ? base::nullopt
+                            : base::make_optional(mojo_value->get_number());
+
+  electron::Browser::Get()->SetBadgeCount(value);
+}
+
+void BadgeManager::ClearBadge() {
+  electron::Browser::Get()->SetBadgeCount(0);
+}
+
+}  // namespace badging

shell/browser/badging/badge_manager.h

@@ -0,0 +1,90 @@
+// Copyright 2018 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.
+
+#ifndef SHELL_BROWSER_BADGING_BADGE_MANAGER_H_
+#define SHELL_BROWSER_BADGING_BADGE_MANAGER_H_
+
+#include <map>
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "base/macros.h"
+#include "base/optional.h"
+#include "components/keyed_service/core/keyed_service.h"
+#include "mojo/public/cpp/bindings/receiver_set.h"
+#include "third_party/blink/public/mojom/badging/badging.mojom.h"
+#include "url/gurl.h"
+
+namespace content {
+class RenderFrameHost;
+class RenderProcessHost;
+}  // namespace content
+
+namespace badging {
+
+// The maximum value of badge contents before saturation occurs.
+constexpr int kMaxBadgeContent = 99;
+
+// Maintains a record of badge contents and dispatches badge changes to a
+// delegate.
+class BadgeManager : public KeyedService, public blink::mojom::BadgeService {
+ public:
+  BadgeManager();
+  ~BadgeManager() override;
+
+  static void BindFrameReceiver(
+      content::RenderFrameHost* frame,
+      mojo::PendingReceiver<blink::mojom::BadgeService> receiver);
+
+  // Determines the text to put on the badge based on some badge_content.
+  static std::string GetBadgeString(base::Optional<int> badge_content);
+
+ private:
+  // The BindingContext of a mojo request. Allows mojo calls to be tied back
+  // to the execution context they belong to without trusting the renderer for
+  // that information.  This is an abstract base class that different types of
+  // execution contexts derive.
+  class BindingContext {
+   public:
+    virtual ~BindingContext() = default;
+  };
+
+  // The BindingContext for Window execution contexts.
+  class FrameBindingContext final : public BindingContext {
+   public:
+    FrameBindingContext(int process_id, int frame_id)
+        : process_id_(process_id), frame_id_(frame_id) {}
+    ~FrameBindingContext() override = default;
+
+    int GetProcessId() { return process_id_; }
+    int GetFrameId() { return frame_id_; }
+
+   private:
+    int process_id_;
+    int frame_id_;
+  };
+
+  // blink::mojom::BadgeService:
+  // Note: These are private to stop them being called outside of mojo as they
+  // require a mojo binding context.
+  void SetBadge(blink::mojom::BadgeValuePtr value) override;
+  void ClearBadge() override;
+
+  // All the mojo receivers for the BadgeManager. Keeps track of the
+  // render_frame the binding is associated with, so as to not have to rely
+  // on the renderer passing it in.
+  mojo::ReceiverSet<blink::mojom::BadgeService, std::unique_ptr<BindingContext>>
+      receivers_;
+
+  // Delegate which handles actual setting and clearing of the badge.
+  // Note: This is currently only set on Windows and MacOS.
+  // std::unique_ptr<BadgeManagerDelegate> delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(BadgeManager);
+};
+
+}  // namespace badging
+
+#endif  // SHELL_BROWSER_BADGING_BADGE_MANAGER_H_

shell/browser/badging/badge_manager_factory.cc

@@ -0,0 +1,41 @@
+// Copyright 2018 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 "shell/browser/badging/badge_manager_factory.h"
+
+#include <memory>
+
+#include "base/bind.h"
+#include "base/memory/ptr_util.h"
+#include "base/memory/singleton.h"
+#include "components/keyed_service/content/browser_context_dependency_manager.h"
+#include "shell/browser/badging/badge_manager.h"
+
+namespace badging {
+
+// static
+BadgeManager* BadgeManagerFactory::GetForBrowserContext(
+    content::BrowserContext* context) {
+  return static_cast<badging::BadgeManager*>(
+      GetInstance()->GetServiceForBrowserContext(context, true));
+}
+
+// static
+BadgeManagerFactory* BadgeManagerFactory::GetInstance() {
+  return base::Singleton<BadgeManagerFactory>::get();
+}
+
+BadgeManagerFactory::BadgeManagerFactory()
+    : BrowserContextKeyedServiceFactory(
+          "BadgeManager",
+          BrowserContextDependencyManager::GetInstance()) {}
+
+BadgeManagerFactory::~BadgeManagerFactory() {}
+
+KeyedService* BadgeManagerFactory::BuildServiceInstanceFor(
+    content::BrowserContext* context) const {
+  return new BadgeManager();
+}
+
+}  // namespace badging

shell/browser/badging/badge_manager_factory.h

@@ -0,0 +1,44 @@
+// Copyright 2018 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.
+
+#ifndef SHELL_BROWSER_BADGING_BADGE_MANAGER_FACTORY_H_
+#define SHELL_BROWSER_BADGING_BADGE_MANAGER_FACTORY_H_
+
+#include "base/macros.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+
+namespace base {
+template <typename T>
+struct DefaultSingletonTraits;
+}
+
+namespace badging {
+
+class BadgeManager;
+
+// Singleton that provides access to context specific BadgeManagers.
+class BadgeManagerFactory : public BrowserContextKeyedServiceFactory {
+ public:
+  // Gets the BadgeManager for the specified context
+  static BadgeManager* GetForBrowserContext(content::BrowserContext* context);
+
+  // Returns the BadgeManagerFactory singleton.
+  static BadgeManagerFactory* GetInstance();
+
+ private:
+  friend struct base::DefaultSingletonTraits<BadgeManagerFactory>;
+
+  BadgeManagerFactory();
+  ~BadgeManagerFactory() override;
+
+  // BrowserContextKeyedServiceFactory
+  KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* context) const override;
+
+  DISALLOW_COPY_AND_ASSIGN(BadgeManagerFactory);
+};
+
+}  // namespace badging
+
+#endif  // SHELL_BROWSER_BADGING_BADGE_MANAGER_FACTORY_H_