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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "webkit/glue/image_resource_fetcher.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "ui/gfx/size.h"
#include "webkit/glue/image_decoder.h"
#include "third_party/skia/include/core/SkBitmap.h"
using WebKit::WebFrame;
using WebKit::WebURLRequest;
using WebKit::WebURLResponse;
namespace webkit_glue {
ImageResourceFetcher::ImageResourceFetcher(
const GURL& image_url,
WebFrame* frame,
int id,
int image_size,
WebURLRequest::TargetType target_type,
const Callback& callback)
: callback_(callback),
id_(id),
image_url_(image_url),
image_size_(image_size) {
fetcher_.reset(new ResourceFetcher(
image_url, frame, target_type,
base::Bind(&ImageResourceFetcher::OnURLFetchComplete,
base::Unretained(this))));
}
ImageResourceFetcher::~ImageResourceFetcher() {
if (!fetcher_->completed())
fetcher_->Cancel();
}
void ImageResourceFetcher::OnURLFetchComplete(
const WebURLResponse& response,
const std::string& data) {
SkBitmap bitmap;
if (!response.isNull() && response.httpStatusCode() == 200) {
// Request succeeded, try to convert it to an image.
ImageDecoder decoder(gfx::Size(image_size_, image_size_));
bitmap = decoder.Decode(
reinterpret_cast<const unsigned char*>(data.data()), data.size());
} // else case:
// If we get here, it means no image from server or couldn't decode the
// response as an image. The delegate will see a null image, indicating
// that an error occurred.
// Take a reference to the callback as running the callback may lead to our
// destruction.
Callback callback = callback_;
callback.Run(this, bitmap);
}
} // namespace webkit_glue
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