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// Copyright (c) 2012 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.
#include "ui/views/mouse_watcher_view_host.h"
#include "ui/gfx/screen.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
namespace views {
MouseWatcherViewHost::MouseWatcherViewHost(View* view,
const gfx::Insets& hot_zone_insets)
: view_(view),
hot_zone_insets_(hot_zone_insets) {
}
MouseWatcherViewHost::~MouseWatcherViewHost() {
}
bool MouseWatcherViewHost::Contains(
const gfx::Point& screen_point,
MouseEventType type) {
bool in_view = IsCursorInViewZone(screen_point);
if (!in_view || (type == MOUSE_EXIT && !IsMouseOverWindow()))
return false;
return true;
}
// Returns whether or not the cursor is currently in the view's "zone" which
// is defined as a slightly larger region than the view.
bool MouseWatcherViewHost::IsCursorInViewZone(const gfx::Point& screen_point) {
gfx::Rect bounds = view_->GetLocalBounds();
gfx::Point view_topleft(bounds.origin());
View::ConvertPointToScreen(view_, &view_topleft);
bounds.set_origin(view_topleft);
bounds.SetRect(view_topleft.x() - hot_zone_insets_.left(),
view_topleft.y() - hot_zone_insets_.top(),
bounds.width() + hot_zone_insets_.width(),
bounds.height() + hot_zone_insets_.height());
return bounds.Contains(screen_point.x(), screen_point.y());
}
// Returns true if the mouse is over the view's window.
bool MouseWatcherViewHost::IsMouseOverWindow() {
Widget* widget = view_->GetWidget();
if (!widget)
return false;
return gfx::Screen::GetScreenFor(widget->GetNativeView())->
GetWindowAtCursorScreenPoint() == widget->GetNativeWindow();
}
} // namespace views
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