From 46d7136718292aa7ff4e6ac9e32018c13e493d22 Mon Sep 17 00:00:00 2001
From: "a.yankovich" <EndrIIMail@gmail.com>
Date: Tue, 29 Sep 2020 18:44:22 +0300
Subject: [PATCH] change AsyncImageResponse

---
 .../Front/src/correnthostimageprovider.cpp    | 90 +++++++++++++++----
 .../Front/src/correnthostimageprovider.h      | 25 ++++--
 2 files changed, 93 insertions(+), 22 deletions(-)

diff --git a/Site/BaseFront/Front/src/correnthostimageprovider.cpp b/Site/BaseFront/Front/src/correnthostimageprovider.cpp
index ff5bab6..c605b0f 100644
--- a/Site/BaseFront/Front/src/correnthostimageprovider.cpp
+++ b/Site/BaseFront/Front/src/correnthostimageprovider.cpp
@@ -1,9 +1,22 @@
-#include "correnthostimageprovider.h"
-#include <string>
-#include <functional>
+//#
+//# Copyright (C) 2020-2020 QuasarApp.
+//# Distributed under the lgplv3 software license, see the accompanying
+//# Everyone is permitted to copy and distribute verbatim copies
+//# of this license document, but changing it is not allowed.
+//#
 
-#ifdef WASM32_BUILD
+
+#include "correnthostimageprovider.h"
+
+#include <quasarapp.h>
+
+#ifdef Q_OS_WASM
 #include <emscripten/fetch.h>
+#include <string>
+#else
+#include <QNetworkAccessManager>
+#include <QNetworkRequest>
+#include <QNetworkReply>
 #endif
 
 namespace BaseFront {
@@ -25,24 +38,38 @@ QQuickImageResponse *CorrentHostImageProvider::requestImageResponse(
 }
 
 AsyncImageResponse::AsyncImageResponse(const QString &id, const QSize &requestedSize)
-    : m_id(id), m_requestedSize(requestedSize) {
+    :
+      #ifndef Q_OS_WASM
+      m_manager(new QNetworkAccessManager),
+      #endif
+      m_id(id),
+      m_requestedSize(requestedSize)  {
     setAutoDelete(false);
 }
 
+AsyncImageResponse::~AsyncImageResponse() {
+#ifndef Q_OS_WASM
+    delete m_manager;
+#endif
+}
+
 QQuickTextureFactory *AsyncImageResponse::textureFactory() const {
     return QQuickTextureFactory::textureFactoryForImage(m_image);
 }
 
-#ifdef WASM32_BUILD
-static void * tmpPTR = nullptr;
+#ifdef Q_OS_WASM
+static void *response = nullptr;
 #endif
 
 void AsyncImageResponse::run() {
-#ifdef WASM32_BUILD
-    tmpPTR = this;
-    auto downloadSucceeded = [](emscripten_fetch_t *fetch){
-        auto resp = reinterpret_cast<AsyncImageResponse*>(tmpPTR);
-        resp->m_image = QImage::fromData(reinterpret_cast<const unsigned char *>(fetch->data), fetch->numBytes);
+
+
+#ifdef Q_OS_WASM
+    response = this;
+    auto downloadSucceeded = [](emscripten_fetch_t *fetch) {
+        auto resp = static_cast<AsyncImageResponse*>(response);
+        resp->m_image = QImage::fromData(reinterpret_cast<const unsigned char*>(fetch->data),
+                                         fetch->numBytes);
 
         if (resp->m_requestedSize.isValid())
             resp->m_image = resp->m_image.scaled(resp->m_requestedSize);
@@ -52,8 +79,16 @@ void AsyncImageResponse::run() {
         emscripten_fetch_close(fetch); // Free data associated with the fetch.
     };
 
-    auto downloadFailed = [](emscripten_fetch_t *fetch){
+    auto downloadFailed = [](emscripten_fetch_t *fetch) {
+
+        QuasarAppUtils::Params::log(QString("Downloading %0 failed, HTTP failure status code: %1.\n").
+                                    arg(fetch->url).arg(fetch->status),
+                                    QuasarAppUtils::Error);
+
         emscripten_fetch_close(fetch); // Also free data on failure.
+
+        auto resp = static_cast<AsyncImageResponse*>(response);
+        resp->cancel();
     };
 
     emscripten_fetch_attr_t attr;
@@ -62,14 +97,37 @@ void AsyncImageResponse::run() {
     attr.attributes = EMSCRIPTEN_FETCH_LOAD_TO_MEMORY;
     attr.onsuccess = downloadSucceeded;
     attr.onerror = downloadFailed;
+
     auto stdString = m_id.toStdString();
+
     emscripten_fetch(&attr, stdString.c_str());
 #else
-    cancel();
+    QNetworkRequest request;
+
+    m_manager->get(request);
+
+    auto handleRequest= [this](QNetworkReply *reply) {
+
+        if (reply->error() != QNetworkReply::NoError) {
+            QuasarAppUtils::Params::log(reply->errorString(),
+                                        QuasarAppUtils::Error);
+
+            cancel();
+        }
+
+        auto data = reply->readAll();
+        m_image = QImage::fromData(data);
+
+        if (m_requestedSize.isValid())
+            m_image = m_image.scaled(m_requestedSize);
+
+        emit finished();
+
+    };
+
+    connect(m_manager, &QNetworkAccessManager::finished, handleRequest);
 #endif
 
-
-
 }
 
 }
diff --git a/Site/BaseFront/Front/src/correnthostimageprovider.h b/Site/BaseFront/Front/src/correnthostimageprovider.h
index 1b7cab3..f943b80 100644
--- a/Site/BaseFront/Front/src/correnthostimageprovider.h
+++ b/Site/BaseFront/Front/src/correnthostimageprovider.h
@@ -1,3 +1,11 @@
+//#
+//# Copyright (C) 2020-2020 QuasarApp.
+//# Distributed under the lgplv3 software license, see the accompanying
+//# Everyone is permitted to copy and distribute verbatim copies
+//# of this license document, but changing it is not allowed.
+//#
+
+
 #ifndef CORRENTHOSTIMAGEPROVIDER_H
 #define CORRENTHOSTIMAGEPROVIDER_H
 
@@ -5,6 +13,7 @@
 #include <QRunnable>
 #include "BaseFront_global.h"
 
+class QNetworkAccessManager;
 
 namespace BaseFront {
 
@@ -12,21 +21,25 @@ class BASEFRONT_LIBRARYSHARED_EXPORT AsyncImageResponse : public QQuickImageResp
 {
 public:
     AsyncImageResponse(const QString &id, const QSize &requestedSize);
+    ~AsyncImageResponse() override;
+    QQuickTextureFactory *textureFactory() const override;
 
-    QQuickTextureFactory *textureFactory() const;
-
-    void run();
-
+    void run() override;
+#ifndef Q_OS_WASM
+private:
+    QNetworkAccessManager *m_manager = nullptr;
+#endif
     QString m_id;
-    QSize m_requestedSize;
     QImage m_image;
+    QSize m_requestedSize;
+
 };
 
 class BASEFRONT_LIBRARYSHARED_EXPORT CorrentHostImageProvider: public QQuickAsyncImageProvider
 {
 public:
     CorrentHostImageProvider();
-    ~CorrentHostImageProvider();
+    ~CorrentHostImageProvider() override;
 
     QQuickImageResponse *requestImageResponse(const QString &id, const QSize &requestedSize) override;