| // Copyright (c) 2012 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 "content/browser/renderer_host/render_view_host_factory.h" |
| |
| #include <memory> |
| |
| #include "base/logging.h" |
| #include "base/memory/ptr_util.h" |
| #include "content/browser/renderer_host/render_view_host_impl.h" |
| #include "content/browser/renderer_host/render_widget_host_factory.h" |
| |
| namespace content { |
| |
| // static |
| RenderViewHostFactory* RenderViewHostFactory::factory_ = nullptr; |
| |
| // static |
| bool RenderViewHostFactory::is_real_render_view_host_ = false; |
| |
| // static |
| RenderViewHost* RenderViewHostFactory::Create( |
| SiteInstance* instance, |
| RenderViewHostDelegate* delegate, |
| RenderWidgetHostDelegate* widget_delegate, |
| int32_t routing_id, |
| int32_t main_frame_routing_id, |
| int32_t widget_routing_id, |
| bool swapped_out, |
| bool hidden) { |
| // RenderViewHost creation can be either browser-driven (by the user opening a |
| // new tab) or renderer-driven (by script calling window.open, etc). |
| // |
| // In the browser-driven case, the routing ID of the view is lazily assigned: |
| // this is signified by passing MSG_ROUTING_NONE for |routing_id|. |
| if (routing_id == MSG_ROUTING_NONE) { |
| DCHECK_EQ(widget_routing_id, MSG_ROUTING_NONE); |
| routing_id = instance->GetProcess()->GetNextRoutingID(); |
| widget_routing_id = instance->GetProcess()->GetNextRoutingID(); |
| } else { |
| // Otherwise, in the renderer-driven case, the routing ID of the view is |
| // already set. This is due to the fact that a sync render->browser IPC is |
| // involved. In order to quickly reply to the sync IPC, the routing IDs are |
| // assigned as early as possible. The IO thread immediately sends a reply to |
| // the sync IPC, while deferring the creation of the actual Host objects to |
| // the UI thread. |
| } |
| if (factory_) { |
| return factory_->CreateRenderViewHost(instance, delegate, widget_delegate, |
| routing_id, main_frame_routing_id, |
| widget_routing_id, swapped_out); |
| } |
| return new RenderViewHostImpl( |
| instance, |
| base::WrapUnique(RenderWidgetHostFactory::Create( |
| widget_delegate, instance->GetProcess(), widget_routing_id, nullptr, |
| hidden)), |
| delegate, routing_id, main_frame_routing_id, swapped_out, |
| true /* has_initialized_audio_host */); |
| } |
| |
| // static |
| void RenderViewHostFactory::RegisterFactory(RenderViewHostFactory* factory) { |
| DCHECK(!factory_) << "Can't register two factories at once."; |
| factory_ = factory; |
| } |
| |
| // static |
| void RenderViewHostFactory::UnregisterFactory() { |
| DCHECK(factory_) << "No factory to unregister."; |
| factory_ = nullptr; |
| } |
| |
| } // namespace content |