content/renderer/fetchers/web_url_loader_client_impl.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 "content/renderer/fetchers/web_url_loader_client_impl.h"
   6
   7 #include "base/logging.h"
   8 #include "third_party/WebKit/public/platform/WebURLError.h"
   9 #include "third_party/WebKit/public/platform/WebURLLoader.h"
  10 #include "third_party/WebKit/public/platform/WebURLResponse.h"
  11
  12 namespace content {
  13
  14 WebURLLoaderClientImpl::WebURLLoaderClientImpl()
  15     : completed_(false)
  16     , status_(LOADING) {
  17 }
  18
  19 WebURLLoaderClientImpl::~WebURLLoaderClientImpl() {
  20 }
  21
  22 void WebURLLoaderClientImpl::didReceiveResponse(
  23     blink::WebURLLoader* loader, const blink::WebURLResponse& response) {
  24   DCHECK(!completed_);
  25   response_ = response;
  26 }
  27
  28 void WebURLLoaderClientImpl::didReceiveData(
  29     blink::WebURLLoader* loader,
  30     const char* data,
  31     int data_length,
  32     int encoded_data_length) {
  33   // The AssociatedURLLoader will continue after a load failure.
  34   // For example, for an Access Control error.
  35   if (completed_)
  36     return;
  37   DCHECK(data_length > 0);
  38
  39   data_.append(data, data_length);
  40 }
  41
  42 void WebURLLoaderClientImpl::didReceiveCachedMetadata(
  43     blink::WebURLLoader* loader,
  44     const char* data,
  45     int data_length) {
  46   DCHECK(!completed_);
  47   DCHECK(data_length > 0);
  48
  49   metadata_.assign(data, data_length);
  50 }
  51
  52 void WebURLLoaderClientImpl::didFinishLoading(
  53     blink::WebURLLoader* loader,
  54     double finishTime,
  55     int64_t total_encoded_data_length) {
  56   // The AssociatedURLLoader will continue after a load failure.
  57   // For example, for an Access Control error.
  58   if (completed_)
  59     return;
  60   OnLoadCompleteInternal(LOAD_SUCCEEDED);
  61 }
  62
  63 void WebURLLoaderClientImpl::didFail(blink::WebURLLoader* loader,
  64                                      const blink::WebURLError& error) {
  65   OnLoadCompleteInternal(LOAD_FAILED);
  66 }
  67
  68 void WebURLLoaderClientImpl::Cancel() {
  69   OnLoadCompleteInternal(LOAD_FAILED);
  70 }
  71
  72 void WebURLLoaderClientImpl::OnLoadCompleteInternal(LoadStatus status) {
  73   DCHECK(!completed_);
  74   DCHECK(status_ == LOADING);
  75
  76   completed_ = true;
  77   status_ = status;
  78
  79   OnLoadComplete();
  80 }
  81
  82 }  // namespace content