1// Copyright (c) 2012 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#include "ui/views/mouse_watcher_view_host.h" 6 7#include "ui/gfx/screen.h" 8#include "ui/views/view.h" 9#include "ui/views/widget/widget.h" 10 11namespace views { 12 13MouseWatcherViewHost::MouseWatcherViewHost(View* view, 14 const gfx::Insets& hot_zone_insets) 15 : view_(view), 16 hot_zone_insets_(hot_zone_insets) { 17} 18 19MouseWatcherViewHost::~MouseWatcherViewHost() { 20} 21 22bool MouseWatcherViewHost::Contains( 23 const gfx::Point& screen_point, 24 MouseEventType type) { 25 bool in_view = IsCursorInViewZone(screen_point); 26 if (!in_view || (type == MOUSE_EXIT && !IsMouseOverWindow())) 27 return false; 28 return true; 29} 30 31// Returns whether or not the cursor is currently in the view's "zone" which 32// is defined as a slightly larger region than the view. 33bool MouseWatcherViewHost::IsCursorInViewZone(const gfx::Point& screen_point) { 34 gfx::Rect bounds = view_->GetLocalBounds(); 35 gfx::Point view_topleft(bounds.origin()); 36 View::ConvertPointToScreen(view_, &view_topleft); 37 bounds.set_origin(view_topleft); 38 bounds.SetRect(view_topleft.x() - hot_zone_insets_.left(), 39 view_topleft.y() - hot_zone_insets_.top(), 40 bounds.width() + hot_zone_insets_.width(), 41 bounds.height() + hot_zone_insets_.height()); 42 43 return bounds.Contains(screen_point.x(), screen_point.y()); 44} 45 46// Returns true if the mouse is over the view's window. 47bool MouseWatcherViewHost::IsMouseOverWindow() { 48 Widget* widget = view_->GetWidget(); 49 if (!widget) 50 return false; 51 52 return gfx::Screen::GetScreenFor(widget->GetNativeView())-> 53 GetWindowUnderCursor() == widget->GetNativeWindow(); 54} 55 56} // namespace views 57