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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_V8_INTERFACE_BRIDGE_BASE_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_V8_INTERFACE_BRIDGE_BASE_H_
#include "third_party/blink/public/mojom/origin_trials/origin_trial_feature.mojom-blink-forward.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "v8/include/v8-forward.h"
namespace blink {
class DOMWrapperWorld;
namespace bindings {
// The common base class of code-generated V8-Blink bridge class of IDL
// interfaces and namespaces.
class PLATFORM_EXPORT V8InterfaceBridgeBase {
STATIC_ONLY(V8InterfaceBridgeBase);
public:
// Selects properties to be installed according to origin trial features.
//
// There are two usages.
// 1) At the first call of V8T::InstallContextDependentProperties, install
// (a) properties that are not associated to origin trial features (e.g.
// secure contexts) plus (b) properties that are associated to origin trial
// features and are already enabled by the moment of the call.
// 2) On 2nd+ call of V8T::InstallContextDependentProperties (when an origin
// trial feature gets enabled later on), install only (c) properties that
// are associated to the origin trial feature that has got enabled.
//
// FeatureSelector() is used for usage 1) and
// FeatureSelector(feature) is used for usage 2).
class PLATFORM_EXPORT FeatureSelector final {
public:
// Selects all properties not associated to any origin trial feature and
// properties associated with the origin trial features that are already
// enabled.
FeatureSelector();
// Selects only the properties that are associated to the given origin
// trial feature.
explicit FeatureSelector(blink::mojom::blink::OriginTrialFeature feature);
FeatureSelector(const FeatureSelector&) = default;
FeatureSelector(FeatureSelector&&) = default;
~FeatureSelector() = default;
FeatureSelector& operator=(const FeatureSelector&) = default;
FeatureSelector& operator=(FeatureSelector&&) = default;
// Returns true if all properties that are associated with the features
// enabled at this moment should be installed.
bool IsAll() const { return does_select_all_; }
// Returns true if properties should be installed. Arguments |featureN|
// represent the origin trial features to which the properties are
// associated.
bool IsAnyOf(blink::mojom::blink::OriginTrialFeature feature1) const {
return selector_ == feature1;
}
bool IsAnyOf(blink::mojom::blink::OriginTrialFeature feature1,
blink::mojom::blink::OriginTrialFeature feature2) const {
return selector_ == feature1 || selector_ == feature2;
}
private:
bool does_select_all_ = false;
// We intentionally avoid default member initializer for |selector_| in
// order not to include runtime_enabled_features.h.
blink::mojom::blink::OriginTrialFeature selector_;
};
using InstallInterfaceTemplateFuncType =
void (*)(v8::Isolate* isolate,
const DOMWrapperWorld& world,
v8::Local<v8::Template> interface_template);
using InstallUnconditionalPropertiesFuncType =
void (*)(v8::Isolate* isolate,
const DOMWrapperWorld& world,
v8::Local<v8::ObjectTemplate> instance_template,
v8::Local<v8::ObjectTemplate> prototype_template,
v8::Local<v8::Template> interface_template);
using InstallContextIndependentPropertiesFuncType =
void (*)(v8::Isolate* isolate,
const DOMWrapperWorld& world,
v8::Local<v8::ObjectTemplate> instance_template,
v8::Local<v8::ObjectTemplate> prototype_template,
v8::Local<v8::Template> interface_template);
using InstallContextDependentPropertiesFuncType =
void (*)(v8::Local<v8::Context> context,
const DOMWrapperWorld& world,
v8::Local<v8::Object> instance_object,
v8::Local<v8::Object> prototype_object,
v8::Local<v8::Object> interface_object,
v8::Local<v8::Template> interface_template,
FeatureSelector feature_selector);
};
} // namespace bindings
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_BINDINGS_V8_INTERFACE_BRIDGE_BASE_H_
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