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https://bitbucket.org/chromiumembedded/cef
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bda9e30ec9
With the introduction of prerendering in Chromium it is now possible for RenderFrameHosts (RFH) to move between FrameTrees. As a consequence we can no longer rely on FrameTreeNode IDs to uniquely identify a RFH over its lifespan. We must now switch to using GlobalRenderFrameHostId (child_id, frame_routing_id) instead for that purpose. Additionally, we simplify existing code by using the GlobalRenderFrameHostId struct in all places that previously used a (render_process_id, render_frame_id) pair, since these concepts are equivalent. See https://crbug.com/1179502#c8 for additional background.
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
// Copyright (c) 2019 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that
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// can be found in the LICENSE file.
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#include "libcef/browser/request_context_handler_map.h"
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#include "libcef/common/frame_util.h"
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CefRequestContextHandlerMap::CefRequestContextHandlerMap() = default;
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CefRequestContextHandlerMap::~CefRequestContextHandlerMap() = default;
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void CefRequestContextHandlerMap::AddHandler(
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const content::GlobalRenderFrameHostId& global_id,
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CefRefPtr<CefRequestContextHandler> handler) {
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DCHECK(frame_util::IsValidGlobalId(global_id));
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DCHECK(handler);
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render_id_handler_map_.insert(std::make_pair(global_id, handler));
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}
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void CefRequestContextHandlerMap::RemoveHandler(
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const content::GlobalRenderFrameHostId& global_id) {
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DCHECK(frame_util::IsValidGlobalId(global_id));
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auto it1 = render_id_handler_map_.find(global_id);
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if (it1 != render_id_handler_map_.end())
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render_id_handler_map_.erase(it1);
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}
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CefRefPtr<CefRequestContextHandler> CefRequestContextHandlerMap::GetHandler(
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const content::GlobalRenderFrameHostId& global_id,
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bool require_frame_match) const {
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if (frame_util::IsValidGlobalId(global_id)) {
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const auto it1 = render_id_handler_map_.find(global_id);
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if (it1 != render_id_handler_map_.end())
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return it1->second;
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}
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if (frame_util::IsValidChildId(global_id.child_id) && !require_frame_match) {
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// Choose an arbitrary handler for the same process.
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for (auto& kv : render_id_handler_map_) {
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if (kv.first.child_id == global_id.child_id)
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return kv.second;
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}
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}
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return nullptr;
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}
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