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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| #include "webtextbrowser.h" | ||
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| #include <QRegularExpression> | ||
| #include <QNetworkAccessManager> | ||
| #include <QNetworkReply> | ||
| #include <QBuffer> | ||
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| #include "util/smoothscrollbar.h" | ||
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| WebTextBrowser::WebTextBrowser(QWidget *parent) : | ||
| QTextBrowser(parent) | ||
| { | ||
| setVerticalScrollBar(new SmoothScrollBar(this)); | ||
| } | ||
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| void WebTextBrowser::setHtml(const QString &html) | ||
| { | ||
| for(auto &&reply : qAsConst(replies_)){ | ||
| if(!reply->isFinished()){ | ||
| reply->abort(); | ||
| reply->deleteLater(); | ||
| } | ||
| } | ||
| replies_.clear(); | ||
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| QTextBrowser::setHtml(html); | ||
| static QRegularExpression reg(R"_(<img .*?src="(.*?)".*?>)_"); | ||
| for(auto i = reg.globalMatch(html); i.hasNext();){ | ||
| auto match = i.next(); | ||
| QString imageStr = match.captured(1); | ||
| QUrl imageUrl(imageStr); | ||
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| QNetworkRequest request(imageUrl); | ||
| request.setAttribute(QNetworkRequest::RedirectPolicyAttribute, true); | ||
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| static QNetworkAccessManager accessManager; | ||
| auto reply = accessManager.get(request); | ||
| replies_ << reply; | ||
| connect(reply, &QNetworkReply::finished, this, [=]{ | ||
| if(reply->error() != QNetworkReply::NoError) return; | ||
| QPixmap pixmap; | ||
| pixmap.loadFromData(reply->readAll()); | ||
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| QByteArray byteArray; | ||
| QBuffer buffer(&byteArray); | ||
| pixmap.toImage().save(&buffer, "JPEG"); | ||
| QString base64Img = "data:image/png;base64," + QString::fromLatin1(byteArray.toBase64().data()); | ||
| QTextBrowser::setHtml(QTextBrowser::toHtml().replace(imageUrl.toString(), base64Img)); | ||
| replies_.removeOne(reply); | ||
| reply->deleteLater(); | ||
| }); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| #ifndef WEBTEXTBROWSER_H | ||
| #define WEBTEXTBROWSER_H | ||
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| #include <QTextBrowser> | ||
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| class QNetworkReply; | ||
| class WebTextBrowser : public QTextBrowser | ||
| { | ||
| Q_OBJECT | ||
| public: | ||
| explicit WebTextBrowser(QWidget *parent = nullptr); | ||
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| void setHtml(const QString &html); | ||
| private: | ||
| QList<QNetworkReply*> replies_; | ||
| }; | ||
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| #endif // WEBTEXTBROWSER_H |