ladybird/Libraries/LibHTML/ResourceLoader.cpp
Andreas Kling 06113b4ffe LibHTML+Browser: Show the number of pending resource loads
For now this is simply a counter+hook exposed by ResourceLoader and
shown in the Browser status bar.

This is not very nuanced, and it would be nice to expose more info so
we could eventually do something like a progress bar.
2019-10-10 22:07:08 +02:00

58 lines
1.7 KiB
C++

#include <LibCore/CFile.h>
#include <LibCore/CHttpJob.h>
#include <LibCore/CHttpRequest.h>
#include <LibCore/CNetworkResponse.h>
#include <LibHTML/ResourceLoader.h>
ResourceLoader& ResourceLoader::the()
{
static ResourceLoader* s_the;
if (!s_the)
s_the = &ResourceLoader::construct().leak_ref();
return *s_the;
}
void ResourceLoader::load(const URL& url, Function<void(const ByteBuffer&)> callback)
{
if (url.protocol() == "file") {
auto f = CFile::construct();
f->set_filename(url.path());
if (!f->open(CIODevice::OpenMode::ReadOnly)) {
dbg() << "ResourceLoader::load: Error: " << f->error_string();
callback({});
return;
}
auto data = f->read_all();
deferred_invoke([data = move(data), callback = move(callback)](auto&) {
callback(data);
});
return;
}
if (url.protocol() == "http") {
CHttpRequest request;
request.set_url(url);
request.set_method(CHttpRequest::Method::GET);
auto job = request.schedule();
++m_pending_loads;
if (on_load_counter_change)
on_load_counter_change();
job->on_finish = [this, job, callback = move(callback)](bool success) {
--m_pending_loads;
if (on_load_counter_change)
on_load_counter_change();
if (!success) {
dbg() << "HTTP job failed!";
ASSERT_NOT_REACHED();
}
auto* response = job->response();
ASSERT(response);
callback(response->payload());
};
return;
}
dbg() << "Unimplemented protocol: " << url.protocol();
ASSERT_NOT_REACHED();
}