// Copyright 2019 The Chromium Authors // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef UI_BASE_METADATA_METADATA_IMPL_MACROS_H_ #define UI_BASE_METADATA_METADATA_IMPL_MACROS_H_ #include <memory> #include <utility> #include "ui/base/metadata/metadata_cache.h" #include "ui/base/metadata/metadata_macros_internal.h" #include "ui/base/metadata/property_metadata.h" // Generate the implementation of the metadata accessors and internal class with // additional macros for defining the class' properties. #define BEGIN_METADATA_BASE(class_name) … #define _BEGIN_NESTED_METADATA(outer_class, class_name) … #define _BEGIN_METADATA_SIMPLE(class_name) … #define _GET_MD_MACRO_NAME(_1, _2, NAME, ...) … // The following macro overloads the above macros. For most cases, only two // parameters are used. In some instances when a class is nested within another // class, the first parameter should be the outer scope with the remaining // parameters same as the non-nested macro. #define BEGIN_METADATA(class_name, ...) … // This macro is used for defining template specializations for a templated view // class. `class_name_alias` is as the name indicates; it's an alias of the // instantiated template type. This is typically in the form of: `using foo = // bar<baz>;`. `template_name` is the base name of the templated class such as // `bar` from the previous alias. END_METADATA works the same as the non- // templated versions. #define BEGIN_TEMPLATE_METADATA(class_name_alias, template_name) … #define END_METADATA … // This will fail to compile if the property accessors aren't in the form of // SetXXXX and GetXXXX. If an explicit type converter is specified, it must have // already been specialized. See the comments in type_converter.h for further // information. #define ADD_PROPERTY_METADATA(property_type, property_name, ...) … // This will fail to compile if the property accessor isn't in the form of // GetXXXX. If an explicit type converter is specified, it must have already // been specialized. See the comments in type_converter.h for further // information. #define ADD_READONLY_PROPERTY_METADATA(property_type, property_name, ...) … // Adds a ui::ClassProperty of key |property_key| to metadata. // If the property value is an pointer of type |TValue*|, specify // |property_type| as |TValue| to allow inspecting the actually value. // Otherwise the metadata will treat the pointer as it is. #define ADD_CLASS_PROPERTY_METADATA(property_type, property_key, ...) … #endif // UI_BASE_METADATA_METADATA_IMPL_MACROS_H_
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