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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_WEBUI_WEB_UI_MAIN_FRAME_OBSERVER_H_
#define CONTENT_BROWSER_WEBUI_WEB_UI_MAIN_FRAME_OBSERVER_H_
#include <stdint.h>
#include <string>
#include "base/memory/raw_ptr.h"
#include "build/build_config.h"
#include "content/common/content_export.h"
#include "content/public/browser/web_contents_observer.h"
namespace blink::mojom {
enum class ConsoleMessageLevel;
} // namespace blink::mojom
namespace content {
class NavigationHandle;
class RenderFrameHost;
class WebContents;
class WebUIImpl;
// The WebContentObserver for WebUIImpl. Each WebUIImpl has exactly one
// WebUIMainFrameObserver to watch for notifications from the associated
// WebContents object.
class CONTENT_EXPORT WebUIMainFrameObserver : public WebContentsObserver {
public:
WebUIMainFrameObserver(WebUIImpl* web_ui, WebContents* contents);
~WebUIMainFrameObserver() override;
WebUIMainFrameObserver(const WebUIMainFrameObserver& rhs) = delete;
WebUIMainFrameObserver& operator=(const WebUIMainFrameObserver& rhs) = delete;
protected:
friend class WebUIMainFrameObserverTest;
// Override from WebContentsObserver
void PrimaryPageChanged(Page& page) override;
#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_FUCHSIA)
// On official Google builds, capture and report JavaScript error messages on
// WebUI surfaces back to Google. This allows us to fix JavaScript errors and
// exceptions.
void OnDidAddMessageToConsole(
RenderFrameHost* source_frame,
blink::mojom::ConsoleMessageLevel log_level,
const std::u16string& message,
int32_t line_no,
const std::u16string& source_id,
const std::optional<std::u16string>& untrusted_stack_trace) override;
#endif // !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_FUCHSIA)
void ReadyToCommitNavigation(NavigationHandle* navigation_handle) override;
private:
void MaybeEnableWebUIJavaScriptErrorReporting(
NavigationHandle* navigation_handle);
// Do we report JavaScript errors ?
bool error_reporting_enabled_ = false;
raw_ptr<WebUIImpl> web_ui_;
};
} // namespace content
#endif // CONTENT_BROWSER_WEBUI_WEB_UI_MAIN_FRAME_OBSERVER_H_
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