1// Copyright 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef COMPONENTS_AUTOFILL_CONTENT_RENDERER_PAGE_CLICK_TRACKER_H_ 6#define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PAGE_CLICK_TRACKER_H_ 7 8#include <vector> 9 10#include "base/basictypes.h" 11#include "base/memory/weak_ptr.h" 12#include "content/public/renderer/render_view_observer.h" 13#include "third_party/WebKit/public/web/WebNode.h" 14 15namespace autofill { 16 17class PageClickListener; 18 19// This class is responsible notifiying the associated listener when a node is 20// clicked or tapped. It also tracks whether a node was focused before the event 21// was handled. 22// 23// This is useful for password/form autofill where we want to trigger a 24// suggestion popup when a text input is clicked. 25// 26// There is one PageClickTracker per RenderView. 27class PageClickTracker : public content::RenderViewObserver { 28 public: 29 // The |listener| will be notified when an element is clicked. It must 30 // outlive this class. 31 PageClickTracker(content::RenderView* render_view, 32 PageClickListener* listener); 33 virtual ~PageClickTracker(); 34 35 private: 36 // RenderView::Observer implementation. 37 virtual void DidHandleMouseEvent(const blink::WebMouseEvent& event) OVERRIDE; 38 virtual void DidHandleGestureEvent( 39 const blink::WebGestureEvent& event) OVERRIDE; 40 virtual void FocusedNodeChanged(const blink::WebNode& node) OVERRIDE; 41 42 // Called there is a tap or click at |x|, |y|. 43 void PotentialActivationAt(int x, int y); 44 45 // Sets |was_focused_before_now_| to true. 46 void SetWasFocused(); 47 48 // This is set to false when the focus changes, then set back to true soon 49 // afterwards. This helps track whether an event happened after a node was 50 // already focused, or if it caused the focus to change. 51 bool was_focused_before_now_; 52 53 // The listener getting the actual notifications. 54 PageClickListener* listener_; 55 56 base::WeakPtrFactory<PageClickTracker> weak_ptr_factory_; 57 58 DISALLOW_COPY_AND_ASSIGN(PageClickTracker); 59}; 60 61} // namespace autofill 62 63#endif // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PAGE_CLICK_TRACKER_H_ 64