third_party/WebKit/Source/bindings/templates/ConditionalFeaturesForCore.cpp.tmpl

{% filter format_blink_cpp_source_code %}

{% include 'copyright_block.txt' %}

#include "bindings/core/v8/ConditionalFeaturesForCore.h"

{% for include in includes %}
#include "{{include}}"
{% endfor %}

namespace blink {

namespace {
InstallConditionalFeaturesFunction g_old_install_conditional_features_function =
    nullptr;
InstallConditionalFeaturesOnGlobalFunction
    g_old_install_conditional_features_on_global_function = nullptr;
InstallPendingConditionalFeatureFunction
    g_old_install_pending_conditional_feature_function = nullptr;

void InstallConditionalFeaturesForCore(
    const WrapperTypeInfo* wrapper_type_info,
    const ScriptState* script_state,
    v8::Local<v8::Object> prototype_object,
    v8::Local<v8::Function> interface_object) {
  (*g_old_install_conditional_features_function)(
      wrapper_type_info, script_state, prototype_object, interface_object);

  ExecutionContext* execution_context = ExecutionContext::From(script_state);
  if (!execution_context)
    return;
  v8::Isolate* isolate = script_state->GetIsolate();
  const DOMWrapperWorld& world = script_state->World();
  // TODO(iclelland): Unify ContextFeatureSettings with the rest of the
  // conditional features.
  if (wrapper_type_info == &V8Window::wrapperTypeInfo) {
    auto* settings = ContextFeatureSettings::From(
        execution_context,
        ContextFeatureSettings::CreationMode::kDontCreateIfNotExists);
    if (settings && settings->isMojoJSEnabled()) {
      v8::Local<v8::Object> instance_object =
          script_state->GetContext()->Global();
      V8Window::installMojoJS(isolate, world, instance_object, prototype_object,
                              interface_object);
    }
    if (settings && settings->isMojoJSTestEnabled()) {
      v8::Local<v8::Object> instance_object =
          script_state->GetContext()->Global();
      V8Window::installMojoJSTest(isolate, world, instance_object,
                                  prototype_object, interface_object);
    }
  }
  // TODO(iclelland): Extract this common code out of ConditionalFeaturesForCore
  // and ConditionalFeaturesForModules into a block.
  {% for interface in installers_by_interface %}
  if (wrapper_type_info == &{{interface.v8_class}}::wrapperTypeInfo) {
    {% if interface.is_global %}
    v8::Local<v8::Object> instance_object =
        script_state->GetContext()->Global();
    {% endif %}
    {% for installer in interface.installers %}
    if ({{installer.condition}}(execution_context)) {
      {{installer.v8_class_or_partial}}::{{installer.install_method}}(
          isolate, world, {% if interface.is_global %}instance_object{% else %}v8::Local<v8::Object>(){% endif %}, prototype_object, interface_object);
    }
    {% endfor %}
  }
  {% endfor %}
}

void InstallConditionalFeaturesOnGlobalForCore(
    const WrapperTypeInfo* wrapper_type_info,
    const ScriptState* script_state) {
  (*g_old_install_conditional_features_on_global_function)(wrapper_type_info,
                                                           script_state);

  // TODO(chasej): Generate this logic at compile-time, based on interfaces with
  // [SecureContext] attribute.
  if (wrapper_type_info == &V8Window::wrapperTypeInfo) {
    V8Window::InstallConditionalFeaturesOnGlobal(script_state->GetContext(),
                                                 script_state->World());
  }
}

void InstallPendingConditionalFeatureForCore(const String& feature,
                                             const ScriptState* script_state) {
  (*g_old_install_pending_conditional_feature_function)(feature, script_state);

  // TODO(iclelland): Extract this common code out of ConditionalFeaturesForCore
  // and ConditionalFeaturesForModules into a block.
  {% if installers_by_feature %}
  v8::Local<v8::Object> prototype_object;
  v8::Local<v8::Function> interface_object;
  v8::Isolate* isolate = script_state->GetIsolate();
  const DOMWrapperWorld& world = script_state->World();
  V8PerContextData* context_data = script_state->PerContextData();
  {% for feature in installers_by_feature %}
  if (feature == {{feature.name_constant}}) {
    {% for installer in feature.installers %}
    {% if installer.interface_is_global %}
    {{installer.v8_class_or_partial}}::{{installer.install_method}}(
        isolate, world, script_state->GetContext()->Global(),
        v8::Local<v8::Object>(), v8::Local<v8::Function>());
    {% else %}
    if (context_data->GetExistingConstructorAndPrototypeForType(
            &{{installer.v8_class}}::wrapperTypeInfo, &prototype_object, &interface_object)) {
      {{installer.v8_class_or_partial}}::{{installer.install_method}}(
          isolate, world, v8::Local<v8::Object>(), prototype_object, interface_object);
    }
    {% endif %}
    {% endfor %}
  }
  {% endfor %}
  {% endif %}
}

}  // namespace

void RegisterInstallConditionalFeaturesForCore() {
  g_old_install_conditional_features_function =
      SetInstallConditionalFeaturesFunction(&InstallConditionalFeaturesForCore);
  g_old_install_conditional_features_on_global_function =
      SetInstallConditionalFeaturesOnGlobalFunction(
          &InstallConditionalFeaturesOnGlobalForCore);
  g_old_install_pending_conditional_feature_function =
      SetInstallPendingConditionalFeatureFunction(
          &InstallPendingConditionalFeatureForCore);
}

}  // namespace blink

{% endfilter %}{# format_blink_cpp_source_code #}