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// 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.
#ifndef CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
#define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
#include <stddef.h>
#include <stdint.h>
#include "base/containers/id_map.h"
#include "base/gtest_prod_util.h"
#include "base/macros.h"
#include "base/observer_list.h"
#include "base/process/process.h"
#include "base/single_thread_task_runner.h"
#include "base/strings/string_piece.h"
#include "base/timer/timer.h"
#include "build/build_config.h"
#include "content/common/content_export.h"
#include "content/common/frame.mojom-forward.h"
#include "content/public/common/drop_data.h"
#include "content/public/common/page_visibility_state.h"
#include "content/public/common/page_zoom.h"
#include "content/public/common/referrer.h"
#include "content/public/renderer/render_view.h"
#include "ipc/ipc_platform_file.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote_set.h"
#include "third_party/blink/public/common/dom_storage/session_storage_namespace_id.h"
#include "third_party/blink/public/common/input/web_input_event.h"
#include "third_party/blink/public/common/permissions_policy/permissions_policy_features.h"
#include "third_party/blink/public/common/renderer_preferences/renderer_preferences.h"
#include "third_party/blink/public/common/web_preferences/web_preferences.h"
#include "third_party/blink/public/mojom/renderer_preference_watcher.mojom.h"
#include "third_party/blink/public/platform/web_security_origin.h"
#include "third_party/blink/public/web/web_ax_object.h"
#include "third_party/blink/public/web/web_console_message.h"
#include "third_party/blink/public/web/web_element.h"
#include "third_party/blink/public/web/web_history_item.h"
#include "third_party/blink/public/web/web_navigation_type.h"
#include "third_party/blink/public/web/web_node.h"
#include "third_party/blink/public/web/web_view_client.h"
#include "ui/base/window_open_disposition.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_f.h"
#include "ui/surface/transport_dib.h"
namespace blink {
class WebURLRequest;
struct WebWindowFeatures;
} // namespace blink
namespace content {
class AgentSchedulingGroup;
class RenderFrameImpl;
class RenderViewImplTest;
class RenderViewTest;
namespace mojom {
class CreateViewParams;
}
// RenderViewImpl (the implementation of RenderView) is the renderer process
// object that owns the blink frame tree.
//
// Each top-level web container has a frame tree, and thus a RenderViewImpl.
// Typically such a container is a browser tab, or a tab-less window. It can
// also be other cases such as a background page or extension.
//
// Under site isolation, frames in the main frame's tree may be moved out
// to a separate frame tree (possibly in another process), leaving remote
// placeholders behind. Each such frame tree also includes a RenderViewImpl as
// the owner of it. Thus a tab may have multiple RenderViewImpls, one for the
// main frame, and one for each other frame tree generated.
class CONTENT_EXPORT RenderViewImpl : public blink::WebViewClient,
public RenderView {
public:
// Creates a new RenderView. Note that if the original opener has been closed,
// |params.window_was_created_with_opener| will be true and
// |params.opener_frame_route_id| will be MSG_ROUTING_NONE.
// When |params.proxy_routing_id| instead of |params.main_frame_routing_id| is
// specified, a RenderFrameProxy will be created for this RenderView's main
// RenderFrame.
// The opener should provide a non-null value for |show_callback| if it needs
// to send an additional IPC to finish making this view visible.
static RenderViewImpl* Create(
AgentSchedulingGroup& agent_scheduling_group,
mojom::CreateViewParamsPtr params,
bool was_created_by_renderer,
scoped_refptr<base::SingleThreadTaskRunner> task_runner);
// Instances of this object are created by and destroyed by the browser
// process. This method must be called exactly once by the IPC subsystem when
// the browser wishes the object to be destroyed.
void Destroy();
// Returns the RenderViewImpl for the given routing ID.
static RenderViewImpl* FromRoutingID(int routing_id);
// blink::WebViewClient implementation --------------------------------------
blink::WebView* CreateView(
blink::WebLocalFrame* creator,
const blink::WebURLRequest& request,
const blink::WebWindowFeatures& features,
const blink::WebString& frame_name,
blink::WebNavigationPolicy policy,
network::mojom::WebSandboxFlags sandbox_flags,
const blink::SessionStorageNamespaceId& session_storage_namespace_id,
bool& consumed_user_gesture,
const absl::optional<blink::WebImpression>& impression) override;
// RenderView implementation -------------------------------------------------
int GetRoutingID() override;
blink::WebView* GetWebView() override;
// Please do not add your stuff randomly to the end here. If there is an
// appropriate section, add it there. If not, there are some random functions
// nearer to the top you can add it to.
bool renderer_wide_named_frame_lookup() {
return renderer_wide_named_frame_lookup_;
}
protected:
RenderViewImpl(AgentSchedulingGroup& agent_scheduling_group,
const mojom::CreateViewParams& params);
~RenderViewImpl() override;
private:
// For unit tests.
friend class RenderViewImplTest;
friend class RenderViewTest;
// TODO(nasko): Temporarily friend RenderFrameImpl, so we don't duplicate
// utility functions needed in both classes, while we move frame specific
// code away from this class.
friend class RenderFrameImpl;
// Initialize() is separated out from the constructor because it is possible
// to accidentally call virtual functions. All RenderViewImpl creation is
// fronted by the Create() method which ensures Initialize() is always called
// before any other code can interact with instances of this call.
void Initialize(mojom::CreateViewParamsPtr params,
bool was_created_by_renderer,
scoped_refptr<base::SingleThreadTaskRunner> task_runner);
static WindowOpenDisposition NavigationPolicyToDisposition(
blink::WebNavigationPolicy policy);
// ---------------------------------------------------------------------------
// ADDING NEW FUNCTIONS? Please keep private functions alphabetized and put
// it in the same order in the .cc file as it was in the header.
// ---------------------------------------------------------------------------
// Becomes true when Destroy() is called.
bool destroying_ = false;
// Routing ID that allows us to communicate with the corresponding
// RenderViewHost in the parent browser process.
const int32_t routing_id_;
// Whether lookup of frames in the created RenderView (e.g. lookup via
// window.open or via <a target=...>) should be renderer-wide (i.e. going
// beyond the usual opener-relationship-based BrowsingInstance boundaries).
const bool renderer_wide_named_frame_lookup_;
// Settings ------------------------------------------------------------------
// View ----------------------------------------------------------------------
// This class owns this member, and is responsible for calling
// WebView::Close().
blink::WebView* webview_ = nullptr;
// Helper objects ------------------------------------------------------------
// The `AgentSchedulingGroup` this view is associated with.
AgentSchedulingGroup& agent_scheduling_group_;
#if defined(OS_ANDROID)
// Android Specific ----------------------------------------------------------
// Whether this was a renderer-created or browser-created RenderView.
bool was_created_by_renderer_ = false;
#endif
// ---------------------------------------------------------------------------
// ADDING NEW DATA? Please see if it fits appropriately in one of the above
// sections rather than throwing it randomly at the end. If you're adding a
// bunch of stuff, you should probably create a helper class and put your
// data and methods on that to avoid bloating RenderView more. You can
// use the Observer interface to filter IPC messages and receive frame change
// notifications.
// ---------------------------------------------------------------------------
DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
};
} // namespace content
#endif // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
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