Framelet Prototype 2016

components/framelet/browser/framelet_guest.h

+// Copyright 2015 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 COMPONENTS_FRAMELET_BROWSER_FRAMELET_GUEST_H_
+#define COMPONENTS_FRAMELET_BROWSER_FRAMELET_GUEST_H_
+
+#include "components/framelet/browser/framelet_memory_tracker_client.h"
+#include "components/framelet/browser/resource_usage_reporter.h"
+#include "components/framelet/browser/resource_usage_reporter_client.h"
+#include "components/guest_view/browser/guest_view.h"
+
+namespace blink {
+class WebInputEvent;
+}
+
+namespace framelet {
+
+class FrameletGuest : public guest_view::GuestView<FrameletGuest>,
+                      public FrameletMemoryTrackerClient,
+                      public ResourceUsageReporterClient<int> {
+ public:
+  static const char Type[];
+
+  static guest_view::GuestViewBase* Create(
+      content::WebContents* owner_web_contents);
+
+  void AttachToEmbedderFrame(int element_instance_id,
+                             int embedder_local_render_frame_id,
+                             const base::DictionaryValue& params);
+
+ private:
+  explicit FrameletGuest(content::WebContents* owner_web_contents);
+  ~FrameletGuest() override;
+
+  // FrameletMemoryTrackerClient implementation.
+  void ReportHeapSize(int heap_size) override;
+
+  // ResourceUsageReporterClient implementation.
+  void OnResourceUsageLevelChanged(
+      const ResourceUsageLevel& usage_level) override;
+  scoped_ptr<ResourceUsageRange<int>> GetRangeForUsageLevel(
+      const ResourceUsageLevel& usage_level) const override;
+
+  // BrowserPluginGuestDelegate implementation.
+  bool SetChildFrameSurface(const cc::SurfaceId& surface_id,
+                            const gfx::Size& frame_size,
+                            float scale_factor,
+                            const cc::SurfaceSequence& sequence) override;
+
+  // content::WebContentsDelegate implementation.
+  bool HandleContextMenu(const content::ContextMenuParams& params) override;
+
+  // GuestViewBase implementation.
+  bool CanRunInDetachedState() const final;
+  const char* GetAPINamespace() const final;
+  int GetTaskPrefix() const final;
+  void CreateWebContents(
+      const base::DictionaryValue& create_params,
+      const guest_view::GuestViewBase::WebContentsCreatedCallback& callback)
+      final;
+  void DidAttachToEmbedder() final;
+  void DidInitialize(const base::DictionaryValue& create_params) final;
+  bool OnMessageReceivedFromEmbedder(const IPC::Message& message) final;
+  void WillDestroy() final;
+
+  // Message handlers.
+  void OnDestroyFramelet(int element_instance_id);
+  void OnForwardInputEvent(int element_instance_id,
+                           const blink::WebInputEvent* event);
+  void OnResizeFramelet(int element_instance_id, const gfx::Size& new_size);
+  void OnSetContainerVisible(int element_instance_id, bool visible);
+  void OnSetFocus(int element_instance_id,
+                  bool focused,
+                  blink::WebFocusType focus_type);
+
+  bool monitor_resources_;
+  scoped_ptr<ResourceUsageReporter<int>> resource_usage_reporter_;
+  DISALLOW_COPY_AND_ASSIGN(FrameletGuest);
+};
+
+}  // namespace framelet
+
+#endif  // COMPONENTS_FRAMELET_BROWSER_FRAMELET_GUEST_H_