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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_CONTENT_CAPTURE_BROWSER_ONSCREEN_CONTENT_PROVIDER_H_
#define COMPONENTS_CONTENT_CAPTURE_BROWSER_ONSCREEN_CONTENT_PROVIDER_H_
#include <map>
#include <memory>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "components/content_capture/browser/content_capture_frame.h"
#include "components/content_capture/common/content_capture.mojom.h"
#include "content/public/browser/global_routing_id.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
namespace content {
class WebContents;
class NavigationEntry;
} // namespace content
namespace content_capture {
class ContentCaptureReceiver;
class ContentCaptureConsumer;
// This class has an instance per WebContents, it is the base class of
// ContentCaptureReceiverManager implementation which shall overrides the pure
// virtual methods to get the messages from each receivers, this class creates
// the ContentCaptureReceiver and associates it with RenderFrameHost, it also
// binds ContentCaptureReceiver with its peer ContentCaptureSender in renderer.
// The ContentSession here is used to specify which frame the message came from.
class OnscreenContentProvider
: public content::WebContentsObserver,
public content::WebContentsUserData<OnscreenContentProvider> {
public:
~OnscreenContentProvider() override;
static OnscreenContentProvider* Create(content::WebContents* web_contents);
// Binds the |request| with the |render_frame_host| associated
// ContentCaptureReceiver.
static void BindContentCaptureReceiver(
mojo::PendingAssociatedReceiver<mojom::ContentCaptureReceiver>
pending_receiver,
content::RenderFrameHost* render_frame_host);
void AddConsumer(ContentCaptureConsumer& consumer);
void RemoveConsumer(ContentCaptureConsumer& consumer);
// The methods called by ContentCaptureReceiver.
void FlushCaptureContent(ContentCaptureReceiver* content_capture_receiver,
const ContentCaptureFrame& data);
void DidCaptureContent(ContentCaptureReceiver* content_capture_receiver,
const ContentCaptureFrame& data);
void DidUpdateContent(ContentCaptureReceiver* content_capture_receiver,
const ContentCaptureFrame& data);
void DidRemoveContent(ContentCaptureReceiver* content_capture_receiver,
const std::vector<int64_t>& data);
void DidRemoveSession(ContentCaptureReceiver* content_capture_receiver);
void DidUpdateTitle(ContentCaptureReceiver* content_capture_receiver);
void DidUpdateFavicon(ContentCaptureReceiver* content_capture_receiver);
// content::WebContentsObserver:
void RenderFrameCreated(content::RenderFrameHost* render_frame_host) override;
void RenderFrameDeleted(content::RenderFrameHost* render_frame_host) override;
void ReadyToCommitNavigation(
content::NavigationHandle* navigation_handle) override;
void TitleWasSet(content::NavigationEntry* entry) override;
void DidUpdateFaviconURL(
content::RenderFrameHost* render_frame_host,
const std::vector<blink::mojom::FaviconURLPtr>& candidates) override;
size_t GetFrameMapSizeForTesting() const { return frame_map_.size(); }
base::WeakPtr<OnscreenContentProvider> GetWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
void NotifyFaviconURLUpdatedForTesting(
content::RenderFrameHost* render_frame_host,
const std::vector<blink::mojom::FaviconURLPtr>& candidates) {
NotifyFaviconURLUpdated(render_frame_host, candidates);
}
#ifdef UNIT_TEST
ContentCaptureReceiver* ContentCaptureReceiverForFrameForTesting(
content::RenderFrameHost* render_frame_host) const {
return ContentCaptureReceiverForFrame(render_frame_host);
}
const std::vector<raw_ptr<ContentCaptureConsumer, VectorExperimental>>&
GetConsumersForTesting() const {
return consumers_;
}
#endif
private:
friend class content::WebContentsUserData<OnscreenContentProvider>;
WEB_CONTENTS_USER_DATA_KEY_DECL();
using content::WebContentsUserData<
OnscreenContentProvider>::CreateForWebContents;
explicit OnscreenContentProvider(content::WebContents* web_contents);
ContentCaptureReceiver* ContentCaptureReceiverForFrame(
content::RenderFrameHost* render_frame_host) const;
// Builds ContentCaptureSession and returns in |session|, |ancestor_only|
// specifies if only ancestor should be returned in |session|.
void BuildContentCaptureSession(
ContentCaptureReceiver* content_capture_receiver,
bool ancestor_only,
ContentCaptureSession* session);
// Builds ContentCaptureSession for |content_capture_receiver| into |session|,
// return true if succeed, this method returns the session that has been
// reported and shall be used for removing session.
bool BuildContentCaptureSessionLastSeen(
ContentCaptureReceiver* content_capture_receiver,
ContentCaptureSession* session);
bool BuildContentCaptureSessionForMainFrame(ContentCaptureSession* session);
bool ShouldCapture(const GURL& url);
void NotifyFaviconURLUpdated(
content::RenderFrameHost* render_frame_host,
const std::vector<blink::mojom::FaviconURLPtr>& candidates);
std::map<content::GlobalRenderFrameHostId,
std::unique_ptr<ContentCaptureReceiver>>
frame_map_;
std::vector<raw_ptr<ContentCaptureConsumer, VectorExperimental>> consumers_;
base::WeakPtrFactory<OnscreenContentProvider> weak_ptr_factory_{this};
};
} // namespace content_capture
#endif // COMPONENTS_CONTENT_CAPTURE_BROWSER_ONSCREEN_CONTENT_PROVIDER_H_
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