From 33f4631f91ec6f399d05f51d0f61b7c1784cf0f2 Mon Sep 17 00:00:00 2001
From: Le Tan <tamlokveer@gmail.com>
Date: Tue, 14 Aug 2018 21:09:18 +0800
Subject: [PATCH] EditWindow: support middle click to close a tab

---
 src/resources/vnote.ini |  3 +++
 src/vconfigmanager.cpp  |  3 +++
 src/vconfigmanager.h    | 10 ++++++++++
 src/veditwindow.cpp     | 20 ++++++++++++++++++++
 src/veditwindow.h       |  2 ++
 5 files changed, 38 insertions(+)

diff --git a/src/resources/vnote.ini b/src/resources/vnote.ini
index 3cfd3045..27d96791 100644
--- a/src/resources/vnote.ini
+++ b/src/resources/vnote.ini
@@ -143,6 +143,9 @@ confirm_reload_folder=true
 ; Whether double click on a tab to close it
 double_click_close_tab=true
 
+; Whether middle click on a tab to close it
+middle_click_close_tab=true
+
 ; Whether enable tools dock widget
 tools_dock_checked=true
 
diff --git a/src/vconfigmanager.cpp b/src/vconfigmanager.cpp
index e3354f0c..ddcf9425 100644
--- a/src/vconfigmanager.cpp
+++ b/src/vconfigmanager.cpp
@@ -232,6 +232,9 @@ void VConfigManager::initialize()
     m_doubleClickCloseTab = getConfigFromSettings("global",
                                                   "double_click_close_tab").toBool();
 
+    m_middleClickCloseTab = getConfigFromSettings("global",
+                                                  "middle_click_close_tab").toBool();
+
     int tmpStartupPageMode = getConfigFromSettings("global",
                                                    "startup_page_type").toInt();
     if (tmpStartupPageMode < (int)StartupPageType::Invalid
diff --git a/src/vconfigmanager.h b/src/vconfigmanager.h
index 3f40fbe0..a30dcd4e 100644
--- a/src/vconfigmanager.h
+++ b/src/vconfigmanager.h
@@ -378,6 +378,8 @@ public:
 
     bool getDoubleClickCloseTab() const;
 
+    bool getMiddleClickClostTab() const;
+
     StartupPageType getStartupPageType() const;
     void setStartupPageType(StartupPageType p_type);
 
@@ -873,6 +875,9 @@ private:
     // Whether double click on a tab to close it.
     bool m_doubleClickCloseTab;
 
+    // Whether middle click on a tab to close it.
+    bool m_middleClickCloseTab;
+
     // Type of the pages to open on startup.
     StartupPageType m_startupPageType;
 
@@ -2085,6 +2090,11 @@ inline bool VConfigManager::getDoubleClickCloseTab() const
     return m_doubleClickCloseTab;
 }
 
+inline bool VConfigManager::getMiddleClickClostTab() const
+{
+    return m_middleClickCloseTab;
+}
+
 inline StartupPageType VConfigManager::getStartupPageType() const
 {
     return m_startupPageType;
diff --git a/src/veditwindow.cpp b/src/veditwindow.cpp
index d24efca9..766897c2 100644
--- a/src/veditwindow.cpp
+++ b/src/veditwindow.cpp
@@ -47,6 +47,10 @@ VEditWindow::VEditWindow(VEditArea *editArea, QWidget *parent)
 
     QTabBar *bar = tabBar();
     bar->setContextMenuPolicy(Qt::CustomContextMenu);
+    if (g_config->getMiddleClickClostTab()) {
+        bar->installEventFilter(this);
+    }
+
     connect(bar, &QTabBar::customContextMenuRequested,
             this, &VEditWindow::tabbarContextMenuRequested);
 
@@ -1305,3 +1309,19 @@ QVector<TabNavigationInfo> VEditWindow::getTabsNavigationInfo() const
 
     return infos;
 }
+
+bool VEditWindow::eventFilter(QObject *p_obj, QEvent *p_event)
+{
+    if (p_obj == tabBar() && p_event->type() == QEvent::MouseButtonRelease) {
+        QMouseEvent *me = static_cast<QMouseEvent *>(p_event);
+        if (me->button() == Qt::MiddleButton) {
+            // Close current tab.
+            int idx = tabBar()->tabAt(me->pos());
+            if (idx != -1) {
+                closeTab(idx);
+            }
+        }
+    }
+
+    return QTabWidget::eventFilter(p_obj, p_event);
+}
diff --git a/src/veditwindow.h b/src/veditwindow.h
index 7f582781..7ed482e7 100644
--- a/src/veditwindow.h
+++ b/src/veditwindow.h
@@ -110,6 +110,8 @@ protected:
     // Drop the data.
     void dropEvent(QDropEvent *p_event) Q_DECL_OVERRIDE;
 
+    bool eventFilter(QObject *p_obj, QEvent *p_event) Q_DECL_OVERRIDE;
+
 signals:
     // Status of current VEditTab has update.
     void tabStatusUpdated(const VEditTabInfo &p_info);