chrome/renderer/extensions/page_capture_custom_bindings.cc

   1 // Copyright (c) 2012 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 "chrome/renderer/extensions/page_capture_custom_bindings.h"
   6
   7 #include "base/bind.h"
   8 #include "base/strings/utf_string_conversions.h"
   9 #include "content/public/renderer/render_frame.h"
  10 #include "extensions/common/extension_messages.h"
  11 #include "extensions/renderer/script_context.h"
  12 #include "third_party/WebKit/public/web/WebBlob.h"
  13 #include "v8/include/v8.h"
  14
  15 namespace extensions {
  16
  17 PageCaptureCustomBindings::PageCaptureCustomBindings(ScriptContext* context)
  18     : ObjectBackedNativeHandler(context) {
  19   RouteFunction("CreateBlob",
  20       base::Bind(&PageCaptureCustomBindings::CreateBlob,
  21                  base::Unretained(this)));
  22   RouteFunction("SendResponseAck",
  23       base::Bind(&PageCaptureCustomBindings::SendResponseAck,
  24                  base::Unretained(this)));
  25 }
  26
  27 void PageCaptureCustomBindings::CreateBlob(
  28     const v8::FunctionCallbackInfo<v8::Value>& args) {
  29   CHECK(args.Length() == 2);
  30   CHECK(args[0]->IsString());
  31   CHECK(args[1]->IsInt32());
  32   blink::WebString path(base::UTF8ToUTF16(*v8::String::Utf8Value(args[0])));
  33   blink::WebBlob blob =
  34       blink::WebBlob::createFromFile(path, args[1]->Int32Value());
  35   args.GetReturnValue().Set(
  36       blob.toV8Value(context()->v8_context()->Global(), args.GetIsolate()));
  37 }
  38
  39 void PageCaptureCustomBindings::SendResponseAck(
  40     const v8::FunctionCallbackInfo<v8::Value>& args) {
  41   CHECK(args.Length() == 1);
  42   CHECK(args[0]->IsInt32());
  43
  44   content::RenderFrame* render_frame = context()->GetRenderFrame();
  45   if (render_frame) {
  46     render_frame->Send(new ExtensionHostMsg_ResponseAck(
  47         render_frame->GetRoutingID(), args[0]->Int32Value()));
  48   }
  49 }
  50
  51 }  // namespace extensions