From 01dd43c3567cfb7e8086fa74f9237aed9774f4d3 Mon Sep 17 00:00:00 2001
From: Altair Wei <altair_wei@outlook.com>
Date: Mon, 23 Aug 2021 09:29:50 +0800
Subject: [PATCH] fix unwanted cursor change when leave edge region (#80)

---
 examples/mainwindow/MainWindow.ui |  9 ++++++++-
 framelesshelper.cpp               | 10 +++++++++-
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/examples/mainwindow/MainWindow.ui b/examples/mainwindow/MainWindow.ui
index f20bcc4..638a9fe 100644
--- a/examples/mainwindow/MainWindow.ui
+++ b/examples/mainwindow/MainWindow.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>518</width>
-    <height>362</height>
+    <height>368</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -152,6 +152,13 @@
    </attribute>
    <widget class="QWidget" name="dockWidgetContents">
     <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>&lt;a href=&quot;https://www.google.com&quot;&gt;https://www.google.com&lt;/a&gt;</string>
+       </property>
+      </widget>
+     </item>
      <item>
       <widget class="QPushButton" name="pushButton">
        <property name="text">
diff --git a/framelesshelper.cpp b/framelesshelper.cpp
index af92047..4eb3a36 100644
--- a/framelesshelper.cpp
+++ b/framelesshelper.cpp
@@ -158,19 +158,27 @@ bool FramelessHelper::eventFilter(QObject *object, QEvent *event)
         }
     } else if (type == QEvent::MouseMove) {
         // Display resize indicators
+        static bool cursorChanged = false;
         if ((window->windowState() == Qt::WindowState::WindowNoState) && resizable) {
             if (((edges & Qt::TopEdge) && (edges & Qt::LeftEdge))
                     || ((edges & Qt::BottomEdge) && (edges & Qt::RightEdge))) {
                 window->setCursor(Qt::SizeFDiagCursor);
+                cursorChanged = true;
             } else if (((edges & Qt::TopEdge) && (edges & Qt::RightEdge))
                        || ((edges & Qt::BottomEdge) && (edges & Qt::LeftEdge))) {
                 window->setCursor(Qt::SizeBDiagCursor);
+                cursorChanged = true;
             } else if ((edges & Qt::TopEdge) || (edges & Qt::BottomEdge)) {
                 window->setCursor(Qt::SizeVerCursor);
+                cursorChanged = true;
             } else if ((edges & Qt::LeftEdge) || (edges & Qt::RightEdge)) {
                 window->setCursor(Qt::SizeHorCursor);
+                cursorChanged = true;
             } else {
-                window->setCursor(Qt::ArrowCursor);
+                if (cursorChanged) {
+                    window->setCursor(Qt::ArrowCursor);
+                    cursorChanged = false;
+                }
             }
         }