72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
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#include "WebImageView.h"
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#include <bb/cascades/Image>
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QNetworkAccessManager * WebImageView::mNetManager = new QNetworkAccessManager;
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QNetworkDiskCache * WebImageView::mNetworkDiskCache = new QNetworkDiskCache();
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WebImageView::WebImageView() {
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mNetworkDiskCache->setCacheDirectory(QDesktopServices::storageLocation(QDesktopServices::CacheLocation));
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mNetManager->setCache(mNetworkDiskCache);
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}
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const QUrl& WebImageView::url() const {
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return mUrl;
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}
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void WebImageView::setUrl(const QUrl& url) {
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mUrl = url;
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mLoading = 0;
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resetImage();
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QNetworkRequest request;
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request.setAttribute(QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::PreferCache);
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request.setUrl(url);
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QNetworkReply * reply = mNetManager->get(QNetworkRequest(request));
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connect(reply,SIGNAL(finished()), this, SLOT(imageLoaded()));
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connect(reply,SIGNAL(downloadProgress ( qint64 , qint64 )), this, SLOT(dowloadProgressed(qint64,qint64)));
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emit urlChanged();
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}
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double WebImageView::loading() const {
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return mLoading;
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}
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void WebImageView::imageLoaded() {
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QNetworkReply * reply = qobject_cast<QNetworkReply*>(sender());
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QVariant possibleRedirectUrl = reply->attribute(QNetworkRequest::RedirectionTargetAttribute);
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mRedirectUrl = this->redirectUrl(possibleRedirectUrl.toUrl(),mRedirectUrl);
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if (!mRedirectUrl.isEmpty()) {
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this->setUrl(mRedirectUrl);
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} else {
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setImage(Image(reply->readAll()));
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}
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reply->deleteLater();
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}
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void WebImageView::dowloadProgressed(qint64 bytes,qint64 total) {
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mLoading = double(bytes)/double(total);
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emit loadingChanged();
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}
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QUrl WebImageView::redirectUrl(const QUrl& possibleRedirectUrl, const QUrl& oldRedirectUrl) const {
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QUrl redirectUrl;
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if (!possibleRedirectUrl.isEmpty() && possibleRedirectUrl != oldRedirectUrl) {
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redirectUrl = possibleRedirectUrl;
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}
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return redirectUrl;
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}
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