From 5333b79222a2edda8121a94e5314fe0ec8b3aeb0 Mon Sep 17 00:00:00 2001
From: yifang <yifang.xiao@outlook.com>
Date: Sat, 11 Dec 2021 10:21:31 +0800
Subject: [PATCH] double click and single click selection

---
 articlewebview.cc | 55 ++++++++++++++++++++++++++---------------------
 articlewebview.hh |  1 +
 2 files changed, 31 insertions(+), 25 deletions(-)

diff --git a/articlewebview.cc b/articlewebview.cc
index 63a54267..3848494e 100644
--- a/articlewebview.cc
+++ b/articlewebview.cc
@@ -53,16 +53,17 @@ bool ArticleWebView::eventFilter(QObject *obj, QEvent *ev)
     }
     if (ev->type() == QEvent::MouseButtonPress) {
         firstClicked=true;
+        QMouseEvent *pe = static_cast<QMouseEvent *>(ev);
+        mousePressEvent(pe);
     }
     if (ev->type() == QEvent::MouseButtonRelease) {
         QMouseEvent *pe = static_cast<QMouseEvent *>(ev);
         mouseReleaseEvent(pe);
-        if(firstClicked){
+        if (firstClicked) {
             QTimer::singleShot(QApplication::doubleClickInterval(),this,[=](){
                 singleClickAction(pe);
             });
-        }
-        else{
+        } else {
             doubleClickAction(pe);
         }
     }
@@ -80,33 +81,37 @@ bool ArticleWebView::eventFilter(QObject *obj, QEvent *ev)
     return QWebEngineView::eventFilter(obj, ev);
 }
 
+void ArticleWebView::mousePressEvent(QMouseEvent *event)
+{
+    if (event->buttons() & Qt::MidButton)
+        midButtonPressed = true;
+
+    //QWebEngineView::mousePressEvent(event);
+}
+
 void ArticleWebView::singleClickAction( QMouseEvent * event )
 {
   if(!firstClicked)
     return;
-  if ( event->buttons() & Qt::MidButton )
-    midButtonPressed = true;
 
-  //QWebEngineView::mousePressEvent(event);
-
-  if (selectionBySingleClick && (event->button() & Qt::LeftButton)) {
-         findText(""); // clear the selection first, if any
-         page()->runJavaScript(QString(""
-"  var s = window.getSelection();  "
-"  var range = s.getRangeAt(0);  "
-"  var node = s.anchorNode;  "
-"  while (range.toString().indexOf(' ') != 0) {  "
-"    range.setStart(node, (range.startOffset - 1));  "
-"  }  "
-"  range.setStart(node, range.startOffset + 1);  "
-"  do {  "
-"    range.setEnd(node, range.endOffset + 1);  "
-"  }  "
-"  while (range.toString().indexOf(' ') == -1 && range.toString().trim() != '');  "
-"  var str = range.toString().trim();  "
-"  console.log(str);"));
-//         QMouseEvent ev( QEvent::MouseButtonDblClick, event->pos(), Qt::LeftButton, Qt::LeftButton, event->modifiers() );
-//         QApplication::sendEvent(page(), &ev );
+  if (selectionBySingleClick && (event->buttons() & Qt::LeftButton)) {
+      // findText(""); // clear the selection first, if any
+      page()->runJavaScript(QString(
+          "  var s = window.getSelection();  "
+          " if(s.rangeCount>0){ "
+          "  var range = s.getRangeAt(0);  "
+          "  var node = s.anchorNode;  "
+          "  while (range.toString().indexOf(' ') != 0) {  "
+          "    range.setStart(node, (range.startOffset - 1));  "
+          "  }  "
+          "  range.setStart(node, range.startOffset + 1);  "
+          "  do {  "
+          "    range.setEnd(node, range.endOffset+1);  "
+          "  }  "
+          "  while (range.toString().indexOf(' ') == -1 && range.toString().trim() != '');  "
+          "  var str = range.toString().trim();  "
+          "  console.log(str);"
+          " }"));
   }
 }
 
diff --git a/articlewebview.hh b/articlewebview.hh
index 9fffae31..84ae8a99 100644
--- a/articlewebview.hh
+++ b/articlewebview.hh
@@ -49,6 +49,7 @@ protected:
 
   bool event( QEvent * event );
   void singleClickAction( QMouseEvent * event );
+  void mousePressEvent(QMouseEvent *event);
   void mouseReleaseEvent( QMouseEvent * event );
   void doubleClickAction( QMouseEvent * event );
   void focusInEvent( QFocusEvent * event );