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https://bitbucket.org/chromiumembedded/cef
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8d7001adc3
Write access to the shared memory region is required because JavaScript lacks the capability to create read-only ArrayBuffers. When a user attempts to modify an ArrayBuffer that utilizes a ReadOnlySharedMemoryRegion as its BackingStore it triggers an access violation. Note that this pull request may be reverted in the future if JavaScript adds read-only ArrayBuffer support.
56 lines
2.2 KiB
C++
56 lines
2.2 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,
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base::Value::List arguments) override;
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void SendSharedMemoryRegion(const std::string& name,
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base::WritableSharedMemoryRegion region) 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 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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