link clicking and hovering in message body now works!

ui/widgets/messageline/feedview.cpp

@@ -51,7 +51,8 @@ FeedView::FeedView(QWidget* parent):
     progress(),
     dividerFont(),
     dividerMetrics(dividerFont),
-    mousePressed(false)
+    mousePressed(false),
+    anchorHovered(false)
 {
     horizontalScrollBar()->setRange(0, 0);
     verticalScrollBar()->setSingleStep(approximateSingleMessageHeight);
@@ -408,6 +409,18 @@ void FeedView::verticalScrollbarValueChanged(int value)
     QAbstractItemView::verticalScrollbarValueChanged(vo);
 }
 
+void FeedView::setAnchorHovered(bool hovered)
+{
+    if (anchorHovered != hovered) {
+        anchorHovered = hovered;
+        if (anchorHovered) {
+            setCursor(Qt::PointingHandCursor);
+        } else {
+            setCursor(Qt::ArrowCursor);
+        }
+    }
+}
+
 void FeedView::mouseMoveEvent(QMouseEvent* event)
 {
     if (!isVisible()) {
@@ -418,6 +431,22 @@ void FeedView::mouseMoveEvent(QMouseEvent* event)
     //qDebug() << event;
     
     QAbstractItemView::mouseMoveEvent(event);
+
+    if (specialDelegate) {
+        QPoint point = event->localPos().toPoint();
+        QModelIndex index = indexAt(point);
+        if (index.isValid()) {
+            QRect rect = visualRect(index);
+            MessageDelegate* del = static_cast<MessageDelegate*>(itemDelegate());
+            if (rect.contains(point)) {
+                setAnchorHovered(del->isAnchorHovered(point, index, rect));
+            } else {
+                setAnchorHovered(false);
+            }
+        } else {
+            setAnchorHovered(false);
+        }
+    }
 }
 
 void FeedView::mousePressEvent(QMouseEvent* event)
@@ -487,6 +516,7 @@ void FeedView::setItemDelegate(QAbstractItemDelegate* delegate)
         elementMargin = MessageDelegate::margin;
         connect(del, &MessageDelegate::buttonPushed, this, &FeedView::onMessageButtonPushed);
         connect(del, &MessageDelegate::invalidPath, this, &FeedView::onMessageInvalidPath);
+        connect(del, &MessageDelegate::openLink, &QDesktopServices::openUrl);
     } else {
         specialDelegate = false;
         elementMargin = 0;

ui/widgets/messageline/feedview.h

@@ -20,6 +20,8 @@
 #define FEEDVIEW_H
 
 #include <QAbstractItemView>
+#include <QDesktopServices>
+#include <QUrl>
 
 #include <deque>
 #include <set>
@@ -76,6 +78,7 @@ private:
     bool tryToCalculateGeometriesWithNoScrollbars(const QStyleOptionViewItem& option, const QAbstractItemModel* model, uint32_t totalHeight);
     void positionProgress();
     void drawDateDevider(int top, const QDateTime& date, QPainter& painter);
+    void setAnchorHovered(bool hovered);
     
 private:
     struct Hint {
@@ -96,6 +99,7 @@ private:
     QFont dividerFont;
     QFontMetrics dividerMetrics;
     bool mousePressed;
+    bool anchorHovered;
     
     static const std::set<int> geometryChangingRoles;
     

ui/widgets/messageline/messagedelegate.cpp

@@ -44,7 +44,6 @@ MessageDelegate::MessageDelegate(QObject* parent):
     bodyFont(),
     nickFont(),
     dateFont(),
-    bodyMetrics(bodyFont),
     bodyRenderer(new QTextDocument()),
     nickMetrics(nickFont),
     dateMetrics(dateFont),
@@ -55,7 +54,6 @@ MessageDelegate::MessageDelegate(QObject* parent):
     bars(new std::map<QString, QProgressBar*>()),
     statusIcons(new std::map<QString, QLabel*>()),
     pencilIcons(new std::map<QString, QLabel*>()),
-    bodies(new std::map<QString, QTextBrowser*>()),
     previews(new std::map<QString, Preview*>()),
     idsToKeep(new std::set<QString>()),
     clearingWidgets(false)
@@ -88,10 +86,6 @@ MessageDelegate::~MessageDelegate()
         delete pair.second;
     }
     
-    for (const std::pair<const QString, QTextBrowser*>& pair: *bodies){
-        delete pair.second;
-    }
-    
     for (const std::pair<const QString, Preview*>& pair: *previews){
         delete pair.second;
     }
@@ -101,7 +95,6 @@ MessageDelegate::~MessageDelegate()
     delete idsToKeep;
     delete buttons;
     delete bars;
-    delete bodies;
     delete previews;
     delete bodyRenderer;
 }
@@ -366,11 +359,8 @@ QSize MessageDelegate::sizeHint(const QStyleOptionViewItem& option, const QModel
     return messageSize;
 }
 
-void MessageDelegate::leftClick(const QPoint& point, const QModelIndex& index, const QRect& sizeHint) const
+QRect MessageDelegate::getHoveredMessageBodyRect(const QModelIndex& index, const Models::FeedItem& data, const QRect& sizeHint) const
 {
-    QVariant vi = index.data(Models::MessageFeed::Bulk);
-    Models::FeedItem data = qvariant_cast<Models::FeedItem>(vi);
-    if (data.text.size() > 0) {
     QRect localHint = sizeHint.adjusted(bubbleMargin, bubbleMargin + margin, -bubbleMargin, -bubbleMargin / 2);
     if (needToDrawSender(index, data)) {
         localHint.adjust(0, nickMetrics.lineSpacing() + textMargin, 0, 0);
@@ -411,23 +401,43 @@ void MessageDelegate::leftClick(const QPoint& point, const QModelIndex& index, c
     int bottomSize = std::max(dateMetrics.lineSpacing(), statusIconSize);
     localHint.adjust(0, attachHeight, 0, -(bottomSize + textMargin));
 
+    return localHint;
+}
+
+QString MessageDelegate::getAnchor(const QPoint& point, const QModelIndex& index, const QRect& sizeHint) const
+{
+    QVariant vi = index.data(Models::MessageFeed::Bulk);
+    Models::FeedItem data = qvariant_cast<Models::FeedItem>(vi);
+    if (data.text.size() > 0) {
+        QRect localHint = getHoveredMessageBodyRect(index, data, sizeHint);
+
         if (localHint.contains(point)) {
-            qDebug() << "MESSAGE CLICKED";
             QPoint translated = point - localHint.topLeft();
 
-            bodyRenderer->setPlainText(data.text);
+            bodyRenderer->setHtml(Shared::processMessageBody(data.text));
             bodyRenderer->setTextWidth(localHint.size().width());
 
-            int pos = bodyRenderer->documentLayout()->hitTest(translated, Qt::FuzzyHit);
+            return bodyRenderer->documentLayout()->anchorAt(translated);
-            QTextBlock block = bodyRenderer->findBlock(pos);
-            QString text = block.text();
-            if (text.size() > 0) {
-                qDebug() << text;
         }
     }
+
+    return QString();
+}
+
+void MessageDelegate::leftClick(const QPoint& point, const QModelIndex& index, const QRect& sizeHint) const
+{
+    QString anchor = getAnchor(point, index, sizeHint);
+    if (anchor.size() > 0) {
+        emit openLink(anchor);
     }
 }
 
+bool MessageDelegate::isAnchorHovered(const QPoint& point, const QModelIndex& index, const QRect& sizeHint) const
+{
+    QString anchor = getAnchor(point, index, sizeHint);
+    return anchor.size() > 0;
+}
+
 void MessageDelegate::initializeFonts(const QFont& font)
 {
     bodyFont = font;
@@ -452,7 +462,6 @@ void MessageDelegate::initializeFonts(const QFont& font)
     }
     
     bodyFont.setKerning(false);
-    bodyMetrics = QFontMetrics(bodyFont);
     nickMetrics = QFontMetrics(nickFont);
     dateMetrics = QFontMetrics(dateFont);
 
@@ -636,36 +645,6 @@ QLabel * MessageDelegate::getPencilIcon(const Models::FeedItem& data) const
     return result;
 }
 
-QTextBrowser * MessageDelegate::getBody(const Models::FeedItem& data) const
-{
-    std::map<QString, QTextBrowser*>::const_iterator itr = bodies->find(data.id);
-    QTextBrowser* result = 0;
-    
-    if (itr != bodies->end()) {
-        result = itr->second;
-    } else {
-        result = new QTextBrowser();
-        result->setFont(bodyFont);
-        result->setContextMenuPolicy(Qt::NoContextMenu);
-        result->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-        result->setContentsMargins(0, 0, 0, 0);
-        //result->viewport()->setAutoFillBackground(false);
-        result->document()->setDocumentMargin(0);
-        result->setFrameStyle(0);
-        result->setLineWidth(0);
-        //result->setAutoFillBackground(false);
-        //->setWordWrap(true);
-        result->setOpenExternalLinks(true);
-        //result->setTextInteractionFlags(result->textInteractionFlags() | Qt::TextSelectableByMouse | Qt::LinksAccessibleByMouse);
-        result->setOpenExternalLinks(true);
-        bodies->insert(std::make_pair(data.id, result));
-    }
-    
-    result->setHtml(Shared::processMessageBody(data.text));
-    
-    return result;
-}
-
 template <typename T>
 void removeElements(std::map<QString, T*>* elements, std::set<QString>* idsToKeep) {
     std::set<QString> toRemove;
@@ -691,26 +670,6 @@ int MessageDelegate::paintBody(const Models::FeedItem& data, QPainter* painter,
         painter->restore();
         QSize bodySize(std::ceil(bodyRenderer->idealWidth()), std::ceil(bodyRenderer->size().height()));
 
-/*
-        QTextBrowser* editor = nullptr;
-        if (option.state.testFlag(QStyle::State_MouseOver)) {
-            std::set<QString> ids({data.id});
-            removeElements(bodies, &ids);
-            editor = getBody(data);
-            editor->setParent(static_cast<QWidget*>(painter->device()));
-        } else {
-            std::map<QString, QTextBrowser*>::const_iterator itr = bodies->find(data.id);
-            if (itr != bodies->end()) {
-                editor = itr->second;
-            }
-        }
-        if (editor != nullptr) {
-            editor->setMinimumSize(bodySize);
-            editor->setMaximumSize(bodySize);
-            editor->move(option.rect.left(), option.rect.y());
-            editor->show();
-        }*/
-
         option.rect.adjust(0, bodySize.height() + textMargin, 0, 0);
         return bodySize.width();
     }
@@ -723,8 +682,6 @@ void MessageDelegate::beginClearWidgets()
     clearingWidgets = true;
 }
 
-
-
 void MessageDelegate::endClearWidgets()
 {
     if (clearingWidgets) {
@@ -732,7 +689,6 @@ void MessageDelegate::endClearWidgets()
         removeElements(bars, idsToKeep);
         removeElements(statusIcons, idsToKeep);
         removeElements(pencilIcons, idsToKeep);
-        removeElements(bodies, idsToKeep);
         removeElements(previews, idsToKeep);
         
         idsToKeep->clear();
@@ -760,8 +716,3 @@ void MessageDelegate::clearHelperWidget(const Models::FeedItem& data) const
         }
     }
 }
-
-// void MessageDelegate::setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const
-// {
-//     
-// }

ui/widgets/messageline/messagedelegate.h

@@ -29,8 +29,6 @@
 #include <QPushButton>
 #include <QProgressBar>
 #include <QLabel>
-#include <QTextEdit>
-#include <QTextBrowser>
 
 #include "shared/icons.h"
 #include "shared/global.h"
@@ -59,6 +57,7 @@ public:
     void endClearWidgets();
     void beginClearWidgets();
     void leftClick(const QPoint& point, const QModelIndex& index, const QRect& sizeHint) const;
+    bool isAnchorHovered(const QPoint& point, const QModelIndex& index, const QRect& sizeHint) const;
 
     static int avatarHeight;
     static int margin;
@@ -66,6 +65,7 @@ public:
 signals:
     void buttonPushed(const QString& messageId) const;
     void invalidPath(const QString& messageId) const;
+    void openLink(const QString& href) const;
     
 protected:
     int paintButton(QPushButton* btn, QPainter* painter, bool sentByMe, QStyleOptionViewItem& option) const;
@@ -80,12 +80,14 @@ protected:
     QProgressBar* getBar(const Models::FeedItem& data) const;
     QLabel* getStatusIcon(const Models::FeedItem& data) const;
     QLabel* getPencilIcon(const Models::FeedItem& data) const;
-    QTextBrowser* getBody(const Models::FeedItem& data) const;
     void clearHelperWidget(const Models::FeedItem& data) const;
 
     bool needToDrawAvatar(const QModelIndex& index, const Models::FeedItem& data, const QStyleOptionViewItem& option) const;
     bool needToDrawSender(const QModelIndex& index, const Models::FeedItem& data) const;
 
+    QRect getHoveredMessageBodyRect(const QModelIndex& index, const Models::FeedItem& data, const QRect& sizeHint) const;
+    QString getAnchor(const QPoint& point, const QModelIndex& index, const QRect& sizeHint) const;
+    
 protected slots:
     void onButtonPushed() const;
     
@@ -98,7 +100,6 @@ private:
     QFont bodyFont;
     QFont nickFont;
     QFont dateFont;
-    QFontMetrics bodyMetrics;
     QTextDocument* bodyRenderer;
     QFontMetrics nickMetrics;
     QFontMetrics dateMetrics;
@@ -111,7 +112,6 @@ private:
     std::map<QString, QProgressBar*>* bars;
     std::map<QString, QLabel*>* statusIcons;
     std::map<QString, QLabel*>* pencilIcons;
-    std::map<QString, QTextBrowser*>* bodies;
     std::map<QString, Preview*>* previews;
     std::set<QString>* idsToKeep;
     bool clearingWidgets;