extensions/renderer/css_native_handler.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 "extensions/renderer/css_native_handler.h"
   6
   7 #include "extensions/renderer/script_context.h"
   8 #include "third_party/WebKit/public/platform/WebString.h"
   9 #include "third_party/WebKit/public/web/WebScriptBindings.h"
  10 #include "third_party/WebKit/public/web/WebSelector.h"
  11
  12 namespace extensions {
  13
  14 using blink::WebString;
  15
  16 CssNativeHandler::CssNativeHandler(ScriptContext* context)
  17     : ObjectBackedNativeHandler(context) {
  18   RouteFunction("CanonicalizeCompoundSelector",
  19                 base::Bind(&CssNativeHandler::CanonicalizeCompoundSelector,
  20                            base::Unretained(this)));
  21 }
  22
  23 void CssNativeHandler::CanonicalizeCompoundSelector(
  24     const v8::FunctionCallbackInfo<v8::Value>& args) {
  25   CHECK_EQ(args.Length(), 1);
  26   CHECK(args[0]->IsString());
  27   WebString input_selector =
  28       blink::WebScriptBindings::toWebString(args[0].As<v8::String>());
  29   WebString output_selector = blink::canonicalizeSelector(
  30       input_selector, blink::WebSelectorTypeCompound);
  31   args.GetReturnValue().Set(blink::WebScriptBindings::toV8String(
  32       output_selector, context()->v8_context()->GetIsolate()));
  33 }
  34
  35 }  // namespace extensions