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GH-1072 split resource system to UI and logic parts

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This commit is contained in:
Petr Mrázek
2015-09-26 13:45:29 +02:00
parent cca6700134
commit 271ad9e4fd
9 changed files with 45 additions and 230 deletions
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62
logic/resources/IconResourceHandler.cpp
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@ -1,62 +0,0 @@
#include "IconResourceHandler.h"
#include <QDir>
#include <QDebug>
QString IconResourceHandler::m_theme = "multimc";
QList<std::weak_ptr<IconResourceHandler>> IconResourceHandler::m_iconHandlers;
IconResourceHandler::IconResourceHandler(const QString &key)
: m_key(key)
{
}
void IconResourceHandler::setTheme(const QString &theme)
{
m_theme = theme;
// notify everyone
for (auto handler : m_iconHandlers)
{
std::shared_ptr<IconResourceHandler> ptr = handler.lock();
if (ptr)
{
ptr->setResult(ptr->get());
}
}
}
void IconResourceHandler::init(std::shared_ptr<ResourceHandler> &ptr)
{
m_iconHandlers.append(std::dynamic_pointer_cast<IconResourceHandler>(ptr));
// we always have a result, so lets report it now!
setResult(get());
}
QVariant IconResourceHandler::get() const
{
const QDir iconsDir = QDir(":/icons/" + m_theme);
QVariantMap out;
for (const QFileInfo &sizeInfo : iconsDir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot))
{
const QDir dir = QDir(sizeInfo.absoluteFilePath());
const QString dirName = sizeInfo.fileName();
const int size = dirName.left(dirName.indexOf('x')).toInt();
if (dir.exists(m_key + ".png") && dirName != "scalable")
{
out.insert(dir.absoluteFilePath(m_key + ".png"), size);
}
else if (dir.exists(m_key + ".svg") && dirName == "scalable")
{
out.insert(dir.absoluteFilePath(m_key + ".svg"), size);
}
}
if (out.isEmpty())
{
qWarning() << "Couldn't find any icons for" << m_key;
}
return out;
}

27
logic/resources/IconResourceHandler.h
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@ -1,27 +0,0 @@
#pragma once
#include <memory>
#include "ResourceHandler.h"
#include "multimc_logic_export.h"
class MULTIMC_LOGIC_EXPORT IconResourceHandler : public ResourceHandler
{
public:
explicit IconResourceHandler(const QString &key);
/// Sets the current theme and notifies all IconResourceHandlers of the change
static void setTheme(const QString &theme);
private:
// we need to keep track of all IconResourceHandlers so that we can update them if the theme changes
void init(std::shared_ptr<ResourceHandler> &ptr) override;
static QList<std::weak_ptr<IconResourceHandler>> m_iconHandlers;
QString m_key;
static QString m_theme;
// the workhorse, returns QVariantMap (filename => size) for m_key/m_theme
QVariant get() const;
};

41
logic/resources/Resource.cpp
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@ -2,38 +2,45 @@
#include <QDebug>
#include "WebResourceHandler.h"
#include "IconResourceHandler.h"
#include "ResourceObserver.h"
#include "ResourceHandler.h"
// definition of static members of Resource
QMap<QString, std::function<std::shared_ptr<ResourceHandler>(const QString &)>> Resource::m_handlers;
QMap<QPair<int, int>, std::function<QVariant(QVariant)>> Resource::m_transfomers;
QMap<QString, std::weak_ptr<Resource>> Resource::m_resources;
struct NullResourceResult {};
Q_DECLARE_METATYPE(NullResourceResult)
class NullResourceHandler : public ResourceHandler
{
public:
explicit NullResourceHandler()
{
setResult(QVariant::fromValue<NullResourceResult>(NullResourceResult()));
}
};
Resource::Resource(const QString &resource)
: m_resource(resource)
{
// register default handlers
// QUESTION: move elsewhere?
if (!m_handlers.contains("web"))
if (!resource.isEmpty())
{
registerHandler<WebResourceHandler>("web");
// a valid resource identifier has the format <id>:<data>
Q_ASSERT(resource.contains(':'));
// "parse" the resource identifier into id and data
const QString resourceId = resource.left(resource.indexOf(':'));
const QString resourceData = resource.mid(resource.indexOf(':') + 1);
// create and set up the handler
Q_ASSERT(m_handlers.contains(resourceId));
m_handler = m_handlers.value(resourceId)(resourceData);
}
if (!m_handlers.contains("icon"))
else
{
registerHandler<IconResourceHandler>("icon");
m_handler = std::make_shared<NullResourceHandler>();
}
// a valid resource identifier has the format <id>:<data>
Q_ASSERT(resource.contains(':'));
// "parse" the resource identifier into id and data
const QString resourceId = resource.left(resource.indexOf(':'));
const QString resourceData = resource.mid(resource.indexOf(':') + 1);
// create and set up the handler
Q_ASSERT(m_handlers.contains(resourceId));
m_handler = m_handlers.value(resourceId)(resourceData);
Q_ASSERT(m_handler);
m_handler->init(m_handler);
m_handler->setResource(this);

4
logic/resources/ResourceProxyModel.h
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@ -3,8 +3,10 @@
#include <QIdentityProxyModel>
#include <memory>
#include "multimc_logic_export.h"
/// Convenience proxy model that transforms resource identifiers (strings) for Qt::DecorationRole into other types.
class ResourceProxyModel : public QIdentityProxyModel
class MULTIMC_LOGIC_EXPORT ResourceProxyModel : public QIdentityProxyModel
{
Q_OBJECT
public:

67
logic/resources/WebResourceHandler.cpp
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@ -1,67 +0,0 @@
#include "WebResourceHandler.h"
#include "net/CacheDownload.h"
#include "net/HttpMetaCache.h"
#include "net/NetJob.h"
#include "FileSystem.h"
#include "Env.h"
QMap<QString, NetJob *> WebResourceHandler::m_activeDownloads;
WebResourceHandler::WebResourceHandler(const QString &url)
: QObject(), m_url(url)
{
MetaEntryPtr entry = ENV.metacache()->resolveEntry("icons", url);
if (!entry->stale)
{
setResultFromFile(entry->getFullPath());
}
else if (m_activeDownloads.contains(url))
{
NetJob *job = m_activeDownloads.value(url);
connect(job, &NetJob::succeeded, this, &WebResourceHandler::succeeded);
connect(job, &NetJob::failed, this, [job, this]() {setFailure(job->failReason());});
connect(job, &NetJob::progress, this, &WebResourceHandler::progress);
}
else
{
NetJob *job = new NetJob("Icon download");
job->addNetAction(CacheDownload::make(QUrl(url), entry));
connect(job, &NetJob::succeeded, this, &WebResourceHandler::succeeded);
connect(job, &NetJob::failed, this, [job, this]() {setFailure(job->failReason());});
connect(job, &NetJob::progress, this, &WebResourceHandler::progress);
connect(job, &NetJob::finished, job, [job](){m_activeDownloads.remove(m_activeDownloads.key(job));job->deleteLater();});
m_activeDownloads.insert(url, job);
job->start();
}
}
void WebResourceHandler::succeeded()
{
MetaEntryPtr entry = ENV.metacache()->resolveEntry("icons", m_url);
setResultFromFile(entry->getFullPath());
m_activeDownloads.remove(m_activeDownloads.key(qobject_cast<NetJob *>(sender())));
}
void WebResourceHandler::progress(qint64 current, qint64 total)
{
if (total == 0)
{
setProgress(101);
}
else
{
setProgress(current / total);
}
}
void WebResourceHandler::setResultFromFile(const QString &file)
{
try
{
setResult(FS::read(file));
}
catch (Exception &e)
{
setFailure(e.cause());
}
}

23
logic/resources/WebResourceHandler.h
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@ -1,23 +0,0 @@
#pragma once
#include <QObject>
#include "ResourceHandler.h"
class NetJob;
class WebResourceHandler : public QObject, public ResourceHandler
{
public:
explicit WebResourceHandler(const QString &url);
private slots:
void succeeded();
void progress(qint64 current, qint64 total);
private:
static QMap<QString, NetJob *> m_activeDownloads;
QString m_url;
void setResultFromFile(const QString &file);
};