From 3fa14d3c4b73845db7d0f96be2e0fec13749333e Mon Sep 17 00:00:00 2001
From: Black Hat <bhat@encom.eu.org>
Date: Mon, 27 Aug 2018 19:29:50 +0800
Subject: [PATCH] Add image caching && update libqmatrixclient.

---
 include/libqmatrixclient |  2 +-
 src/imageprovider.cpp    | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/libqmatrixclient b/include/libqmatrixclient
index 4e4521892..d9ff200ff 160000
--- a/include/libqmatrixclient
+++ b/include/libqmatrixclient
@@ -1 +1 @@
-Subproject commit 4e45218924babe6708fe2128574a3cf6341fe3c6
+Subproject commit d9ff200ff62fb7f5b6b51082dc3979d5454a1bec
diff --git a/src/imageprovider.cpp b/src/imageprovider.cpp
index 33c181652..0b3b7a5d0 100644
--- a/src/imageprovider.cpp
+++ b/src/imageprovider.cpp
@@ -1,6 +1,8 @@
 #include "imageprovider.h"
 
+#include <QFile>
 #include <QMetaObject>
+#include <QStandardPaths>
 #include <QtCore/QDebug>
 #include <QtCore/QWaitCondition>
 
@@ -30,6 +32,14 @@ QImage ImageProvider::requestImage(const QString& id, QSize* pSize,
 
   QUrl mxcUri{id};
 
+  QUrl tempfilePath = QUrl::fromLocalFile(
+      QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + "/" +
+      mxcUri.fileName() + "-" + QString::number(requestedSize.width()) +
+      "x" + QString::number(requestedSize.height()) + ".png");
+
+  QImage cachedImage;
+  if (cachedImage.load(tempfilePath.toLocalFile())) return cachedImage;
+
   MediaThumbnailJob* job = nullptr;
   QReadLocker locker(&m_lock);
 
@@ -63,5 +73,7 @@ QImage ImageProvider::requestImage(const QString& id, QSize* pSize,
 
   if (pSize != nullptr) *pSize = result.size();
 
+  result.save(tempfilePath.toLocalFile());
+
   return result;
 }