QTextDocument: improve import of DIV tags

<div>1<br/></div>2 was inserting two newlines between 1 and 2, while all
tested web browsers only insert one newline - as long as there is nothing
between the <br/> and the </div>.

This was the cause for extra newlines being inserted in KMail when
replying to HTML emails, such as those generated by gmail.

Change-Id: I5145d977701e68913264357bba22780e7cdd3f7d
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 7 insertions, 3 deletions

diff --git a/src/gui/text/qtextdocumentfragment.cpp b/src/gui/text/qtextdocumentfragment.cpp
index 3a78296c57..ea37695f4e 100644
--- a/src/gui/text/qtextdocumentfragment.cpp
+++ b/src/gui/text/qtextdocumentfragment.cpp
@@ -825,9 +825,13 @@ bool QTextHtmlImporter::closeTag()
                 break;
 
             case Html_div:
-                if (closedNode->children.isEmpty())
-                    break;
-                Q_FALLTHROUGH();
+                if (cursor.position() > 0) {
+                    const QChar curChar = cursor.document()->characterAt(cursor.position() - 1);
+                    if (!closedNode->children.isEmpty() && curChar != QChar::LineSeparator) {
+                        blockTagClosed = true;
+                    }
+                }
+                break;
             default:
                 if (closedNode->isBlock())
                     blockTagClosed = true;