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 15 namespace autofill { 16 17 class 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. 27 class 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