ladybird/Applications/ChanViewer/BoardListModel.cpp
Andreas Kling bdf23a3d23 LibCore: Make it possible to cancel pending CNetworkJobs
Subclasses of CNetworkJob handle this by overriding shutdown().
This patch implements it for CHttpJob by simply tearing down the
underlying socket.

We also automatically call shutdown() after the job finishes,
regardless of success or failure. :^)
2019-09-21 17:32:26 +02:00

91 lines
2.2 KiB
C++

#include "BoardListModel.h"
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/JsonValue.h>
#include <LibCore/CHttpRequest.h>
#include <LibCore/CNetworkJob.h>
#include <LibCore/CNetworkResponse.h>
#include <stdio.h>
BoardListModel::BoardListModel()
{
update();
}
BoardListModel::~BoardListModel()
{
}
void BoardListModel::update()
{
CHttpRequest request;
request.set_url("http://a.4cdn.org/boards.json");
if (m_pending_job)
m_pending_job->cancel();
m_pending_job = request.schedule();
m_pending_job->on_finish = [this](bool success) {
auto* response = m_pending_job->response();
dbg() << "Board list download finished, success=" << success << ", response=" << response;
if (!success)
return;
dbg() << "Board list payload size: " << response->payload().size();
auto json = JsonValue::from_string(response->payload());
if (json.is_object()) {
auto new_boards = json.as_object().get("boards");
if (new_boards.is_array())
m_boards = move(new_boards.as_array());
}
did_update();
};
}
int BoardListModel::row_count(const GModelIndex&) const
{
return m_boards.size();
}
String BoardListModel::column_name(int column) const
{
switch (column) {
case Column::Board:
return "Board";
default:
ASSERT_NOT_REACHED();
}
}
GModel::ColumnMetadata BoardListModel::column_metadata([[maybe_unused]] int column) const
{
return {};
}
GVariant BoardListModel::data(const GModelIndex& index, Role role) const
{
auto& board = m_boards.at(index.row()).as_object();
if (role == Role::Display) {
switch (index.column()) {
case Column::Board:
return String::format("/%s/ - %s",
board.get("board").to_string().characters(),
board.get("title").to_string().characters());
default:
ASSERT_NOT_REACHED();
}
}
if (role == Role::Custom) {
switch (index.column()) {
case Column::Board:
return board.get("board").to_string();
default:
ASSERT_NOT_REACHED();
}
}
return {};
}