blob: 071c093f4588115e9ea73c0de00670f11f7cb17a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
// Copyright 2020 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.
#ifndef UI_VIEWS_VIEW_UTILS_H_
#define UI_VIEWS_VIEW_UTILS_H_
#include <type_traits>
#include "ui/views/metadata/metadata_types.h"
#include "ui/views/view.h"
namespace views {
template <typename V>
bool IsViewClass(View* view) {
static_assert(std::is_base_of<View, V>::value, "Only View classes supported");
metadata::ClassMetaData* parent = V::MetaData();
metadata::ClassMetaData* child = view->GetClassMetaData();
while (child && child != parent)
child = child->parent_class_meta_data();
return !!child;
}
} // namespace views
#endif // UI_VIEWS_VIEW_UTILS_H_
|
