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Implement ResourceLoaderBridge::SetDefersLoading (issue #448).

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git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@405 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
This commit is contained in:
Marshall Greenblatt 2011-12-06 10:37:43 +00:00
parent a254639d2b
commit 8433529a00
1 changed files with 33 additions and 2 deletions
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35
libcef/browser_resource_loader_bridge.cc
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@ -144,7 +144,9 @@ class RequestProxy : public net::URLRequest::Delegate,
: download_to_file_(false),
buf_(new net::IOBuffer(kDataSize)),
browser_(browser),
last_upload_position_(0)
last_upload_position_(0),
defers_loading_(false),
defers_loading_want_read_(false)
{
}
@ -174,6 +176,11 @@ class RequestProxy : public net::URLRequest::Delegate,
&RequestProxy::AsyncCancel, this));
}
void SetDefersLoading(bool defer) {
CefThread::PostTask(CefThread::IO, FROM_HERE, base::Bind(
&RequestProxy::AsyncSetDefersLoading, this, defer));
}
protected:
friend class base::RefCountedThreadSafe<RequestProxy>;
@ -572,7 +579,24 @@ class RequestProxy : public net::URLRequest::Delegate,
request_->FollowDeferredRedirect();
}
void AsyncSetDefersLoading(bool defer) {
if (defers_loading_ != defer) {
defers_loading_ = defer;
if (!defers_loading_ && defers_loading_want_read_) {
// Perform the pending AsyncReadData now.
defers_loading_want_read_ = false;
AsyncReadData();
}
}
}
void AsyncReadData() {
// Pause downloading if we're in deferred mode.
if (defers_loading_) {
defers_loading_want_read_ = true;
return;
}
if(resource_stream_.get()) {
// Read from the handler-provided resource stream
int bytes_read = resource_stream_->Read(buf_->data(), 1, kDataSize);
@ -854,6 +878,12 @@ class RequestProxy : public net::URLRequest::Delegate,
CefRefPtr<CefDownloadHandler> download_handler_;
CefRefPtr<CefContentFilter> content_filter_;
// True if loading of data is currently deferred.
bool defers_loading_;
// True if an AsyncReadData was scheduled while we were deferred.
bool defers_loading_want_read_;
};
//-----------------------------------------------------------------------------
@ -1004,7 +1034,8 @@ class ResourceLoaderBridgeImpl : public ResourceLoaderBridge {
}
virtual void SetDefersLoading(bool value) OVERRIDE {
// TODO(darin): implement me
DCHECK(proxy_);
proxy_->SetDefersLoading(value);
}
virtual void SyncLoad(SyncLoadResponse* response) OVERRIDE {