cef/libcef_dll/wrapper/cef_stream_resource_handler.cc

88 lines
2.4 KiB
C++

// Copyright (c) 2012 The Chromium Embedded Framework 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 "include/wrapper/cef_stream_resource_handler.h"
#include <algorithm>
#include "include/base/cef_logging.h"
#include "include/cef_task.h"
#include "include/wrapper/cef_helpers.h"
CefStreamResourceHandler::CefStreamResourceHandler(
const CefString& mime_type,
CefRefPtr<CefStreamReader> stream)
: status_code_(200),
status_text_("OK"),
mime_type_(mime_type),
stream_(stream) {
DCHECK(!mime_type_.empty());
DCHECK(stream_.get());
}
CefStreamResourceHandler::CefStreamResourceHandler(
int status_code,
const CefString& status_text,
const CefString& mime_type,
CefResponse::HeaderMap header_map,
CefRefPtr<CefStreamReader> stream)
: status_code_(status_code),
status_text_(status_text),
mime_type_(mime_type),
header_map_(header_map),
stream_(stream) {
DCHECK(!mime_type_.empty());
DCHECK(stream_.get());
}
bool CefStreamResourceHandler::Open(CefRefPtr<CefRequest> request,
bool& handle_request,
CefRefPtr<CefCallback> callback) {
DCHECK(!CefCurrentlyOn(TID_UI) && !CefCurrentlyOn(TID_IO));
// Continue the request immediately.
handle_request = true;
return true;
}
void CefStreamResourceHandler::GetResponseHeaders(
CefRefPtr<CefResponse> response,
int64& response_length,
CefString& redirectUrl) {
CEF_REQUIRE_IO_THREAD();
response->SetStatus(status_code_);
response->SetStatusText(status_text_);
response->SetMimeType(mime_type_);
if (!header_map_.empty())
response->SetHeaderMap(header_map_);
response_length = -1;
}
bool CefStreamResourceHandler::Read(
void* data_out,
int bytes_to_read,
int& bytes_read,
CefRefPtr<CefResourceReadCallback> callback) {
DCHECK(!CefCurrentlyOn(TID_UI) && !CefCurrentlyOn(TID_IO));
DCHECK_GT(bytes_to_read, 0);
// Read until the buffer is full or until Read() returns 0 to indicate no
// more data.
bytes_read = 0;
int read = 0;
do {
read = static_cast<int>(
stream_->Read(static_cast<char*>(data_out) + bytes_read, 1,
bytes_to_read - bytes_read));
bytes_read += read;
} while (read != 0 && bytes_read < bytes_to_read);
return (bytes_read > 0);
}
void CefStreamResourceHandler::Cancel() {}