ui/views/masked_view_targeter.cc

   1 // Copyright 2014 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/masked_view_targeter.h"
   6
   7 #include "ui/gfx/path.h"
   8 #include "ui/gfx/skia_util.h"
   9 #include "ui/views/view.h"
  10
  11 namespace views {
  12
  13 MaskedViewTargeter::MaskedViewTargeter(View* masked_view)
  14     : masked_view_(masked_view) {
  15 }
  16
  17 MaskedViewTargeter::~MaskedViewTargeter() {
  18 }
  19
  20 bool MaskedViewTargeter::EventLocationInsideBounds(
  21     ui::EventTarget* target,
  22     const ui::LocatedEvent& event) const {
  23   View* view = static_cast<View*>(target);
  24   if (view == masked_view_) {
  25     gfx::Path mask;
  26     if (!GetHitTestMask(view, &mask))
  27       return ViewTargeter::EventLocationInsideBounds(view, event);
  28
  29     gfx::Size size = view->bounds().size();
  30     SkRegion clip_region;
  31     clip_region.setRect(0, 0, size.width(), size.height());
  32
  33     gfx::RectF bounds_f = ViewTargeter::BoundsForEvent(event);
  34     if (view->parent())
  35       View::ConvertRectToTarget(view->parent(), view, &bounds_f);
  36     gfx::Rect bounds = gfx::ToEnclosingRect(bounds_f);
  37
  38     SkRegion mask_region;
  39     return mask_region.setPath(mask, clip_region) &&
  40            mask_region.intersects(RectToSkIRect(bounds));
  41   }
  42
  43   return ViewTargeter::EventLocationInsideBounds(view, event);
  44 }
  45
  46 }  // namespace views