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// Copyright 2013 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 COMPONENTS_AUTOFILL_CONTENT_RENDERER_PAGE_CLICK_TRACKER_H_
#define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PAGE_CLICK_TRACKER_H_
#include <vector>
#include "base/basictypes.h"
#include "base/memory/weak_ptr.h"
#include "content/public/renderer/render_view_observer.h"
#include "third_party/WebKit/public/web/WebNode.h"
namespace autofill {
class PageClickListener;
// This class is responsible notifiying the associated listener when a node is
// clicked or tapped. It also tracks whether a node was focused before the event
// was handled.
//
// This is useful for password/form autofill where we want to trigger a
// suggestion popup when a text input is clicked.
//
// There is one PageClickTracker per RenderView.
class PageClickTracker : public content::RenderViewObserver {
public:
// The |listener| will be notified when an element is clicked. It must
// outlive this class.
PageClickTracker(content::RenderView* render_view,
PageClickListener* listener);
virtual ~PageClickTracker();
private:
// RenderView::Observer implementation.
virtual void DidHandleMouseEvent(const blink::WebMouseEvent& event) OVERRIDE;
virtual void DidHandleGestureEvent(
const blink::WebGestureEvent& event) OVERRIDE;
virtual void FocusedNodeChanged(const blink::WebNode& node) OVERRIDE;
// Called there is a tap or click at |x|, |y|.
void PotentialActivationAt(int x, int y);
// Sets |was_focused_before_now_| to true.
void SetWasFocused();
// This is set to false when the focus changes, then set back to true soon
// afterwards. This helps track whether an event happened after a node was
// already focused, or if it caused the focus to change.
bool was_focused_before_now_;
// The listener getting the actual notifications.
PageClickListener* listener_;
base::WeakPtrFactory<PageClickTracker> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(PageClickTracker);
};
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PAGE_CLICK_TRACKER_H_
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