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3d1bbaf54f
The mojo channel used for frame communication may disconnect for a variety of reasons including frame navigation, frame destruction, or insertion into the BackForwardCache (when the browser-side frame representation is destroyed and closes the connection). When disconnect occurs we now evaluate the situation and reconnect if appropriate. Connections are now initiated solely from the renderer process and the RenderFrame is passed as an argument to FrameAttached() instead of being retrieved independently. Messages are queued while the frame is disconnected and sent only after FrameAttachedAck() is received from the browser process. The renderer process will be crashed intentionally with a "connection retry failure" message if the reconnect fails 3 times in a row.
55 lines
2.1 KiB
C++
55 lines
2.1 KiB
C++
// Copyright 2021 The Chromium Embedded Framework Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CEF_LIBCEF_BROWSER_BROWSER_FRAME_H_
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#define CEF_LIBCEF_BROWSER_BROWSER_FRAME_H_
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#pragma once
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#include "libcef/browser/frame_host_impl.h"
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#include "libcef/browser/frame_service_base.h"
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#include "cef/libcef/common/mojom/cef.mojom.h"
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#include "mojo/public/cpp/bindings/binder_map.h"
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// Implementation of the BrowserFrame mojo interface.
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// This is implemented separately from CefFrameHostImpl to better manage the
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// association with the RenderFrameHost (which may be speculative, etc.), and so
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// that messages are always routed to the most appropriate CefFrameHostImpl
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// instance. Lifespan is tied to the RFH via FrameServiceBase.
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class CefBrowserFrame
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: public content::FrameServiceBase<cef::mojom::BrowserFrame> {
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public:
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CefBrowserFrame(content::RenderFrameHost* render_frame_host,
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mojo::PendingReceiver<cef::mojom::BrowserFrame> receiver);
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CefBrowserFrame(const CefBrowserFrame&) = delete;
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CefBrowserFrame& operator=(const CefBrowserFrame&) = delete;
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~CefBrowserFrame() override;
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// Called from the ContentBrowserClient method of the same name.
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static void RegisterBrowserInterfaceBindersForFrame(
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content::RenderFrameHost* render_frame_host,
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mojo::BinderMapWithContext<content::RenderFrameHost*>* map);
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private:
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// cef::mojom::BrowserFrame methods:
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void SendMessage(const std::string& name, base::Value arguments) override;
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void FrameAttached(mojo::PendingRemote<cef::mojom::RenderFrame> render_frame,
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bool reattached) override;
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void DidFinishFrameLoad(const GURL& validated_url,
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int32_t http_status_code) override;
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void UpdateDraggableRegions(
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absl::optional<std::vector<cef::mojom::DraggableRegionEntryPtr>> regions)
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override;
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// FrameServiceBase methods:
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bool ShouldCloseOnFinishNavigation() const override { return false; }
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CefRefPtr<CefFrameHostImpl> GetFrameHost(
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bool prefer_speculative = false) const;
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};
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#endif // CEF_LIBCEF_BROWSER_BROWSER_FRAME_H_
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