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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ACTOR_TOOLS_NAVIGATE_TOOL_H_
#define CHROME_BROWSER_ACTOR_TOOLS_NAVIGATE_TOOL_H_
#include <optional>
#include "base/memory/weak_ptr.h"
#include "chrome/browser/actor/tools/tool.h"
#include "content/public/browser/web_contents_observer.h"
#include "url/gurl.h"
namespace content {
class NavigationHandle;
} // namespace content
namespace tabs {
class TabInterface;
} // namespace tabs
namespace actor {
// Navigates a tab to the given URL.
class NavigateTool : public Tool, content::WebContentsObserver {
public:
NavigateTool(tabs::TabInterface& tab, const GURL& url);
~NavigateTool() override;
// actor::Tool
void Validate(ValidateCallback callback) override;
void Invoke(InvokeCallback callback) override;
std::string DebugString() const override;
// content::WebContentsObserver
void DidFinishNavigation(
content::NavigationHandle* navigation_handle) override;
void OnFirstContentfulPaintInPrimaryMainFrame() override;
void DidStopLoading() override;
private:
void NavigationHandleCallback(content::NavigationHandle& handle);
void Timeout();
GURL url_;
// Holds the callback to the Invoke method. Null before invoke is called.
InvokeCallback invoke_callback_;
// The ID of the navigation to `url_`, unset until the navigation is started,
// after which this is set (asynchronously). Once set, this class observes the
// WebContents until this handle completes and the above callback is invoked.
std::optional<int64_t> pending_navigation_handle_id_;
// Set after the navigation is finished and we're waiting for the page to be
// ready sufficiently before marking the tool call finished.
struct PostNavigationState {
bool waiting_for_fcp = true;
bool waiting_for_load = true;
bool Done() const { return !waiting_for_fcp && !waiting_for_load; }
};
std::optional<PostNavigationState> post_navigation_state_;
base::WeakPtrFactory<NavigateTool> weak_ptr_factory_{this};
};
} // namespace actor
#endif // CHROME_BROWSER_ACTOR_TOOLS_NAVIGATE_TOOL_H_
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