From 9c12d813966e0fdc4542a7001ffa135722840de0 Mon Sep 17 00:00:00 2001
From: Aqua-sama <aqua@iserlohn-fortress.net>
Date: Sat, 22 Sep 2018 13:07:33 +0200
Subject: SubWindow: add 'open last closed tab/tabs' actions

---
 src/subwindow/subwindow.cpp |  1 +
 src/subwindow/tabwidget.cpp | 57 +++++++++++++++++++++++++++++++++++++++++++++
 src/subwindow/tabwidget.h   |  5 ++++
 3 files changed, 63 insertions(+)

(limited to 'src/subwindow')

diff --git a/src/subwindow/subwindow.cpp b/src/subwindow/subwindow.cpp
index 6cbb172..0e59c6b 100644
--- a/src/subwindow/subwindow.cpp
+++ b/src/subwindow/subwindow.cpp
@@ -69,6 +69,7 @@ SubWindow::SubWindow(const std::unique_ptr<Configuration> &config, QWidget *pare
         auto index = addTab(WebProfile::defaultProfile()->newtab());
         tabWidget->setCurrentIndex(index);
     });
+    newTab_button->setMenu(tabWidget->createTabMenu(newTab_button));
     tabWidget->setCornerWidget(newTab_button, Qt::TopRightCorner);
 
     // general actions
diff --git a/src/subwindow/tabwidget.cpp b/src/subwindow/tabwidget.cpp
index 5583bcd..27ff1f3 100644
--- a/src/subwindow/tabwidget.cpp
+++ b/src/subwindow/tabwidget.cpp
@@ -65,6 +65,54 @@ TabWidget::~TabWidget()
     }
 }
 
+QMenu *TabWidget::createTabMenu(QWidget *parent)
+{
+    auto *menu = new QMenu(parent);
+
+    auto *reopenTabAction = menu->addAction(tr("Reopen last tab"));
+    connect(reopenTabAction, &QAction::triggered, this, [this]() {
+        if(!m_closedTabs.isEmpty()) {
+            QWebEnginePage *page = m_closedTabs.takeLast();
+            auto *view = new WebView(qobject_cast<WebProfile *>(page->profile()), this);
+            view->setPage(page);
+            addTab(view);
+        }
+    });
+
+    auto *tabHistoryMenu = menu->addMenu(tr("Tab History"));
+    connect(tabHistoryMenu, &QMenu::aboutToShow, this, [this, tabHistoryMenu]() {
+        tabHistoryMenu->clear();
+        for(QWebEnginePage *page : m_closedTabs) {
+            auto *openAction = tabHistoryMenu->addAction(page->title());
+            connect(openAction, &QAction::triggered, this, [page, this]() {
+                auto *view = new WebView(qobject_cast<WebProfile *>(page->profile()), this);
+                view->setPage(page);
+                this->addTab(view);
+                m_closedTabs.removeOne(page);
+            });
+        }
+        tabHistoryMenu->addSeparator();
+        auto *clearTabHistory = tabHistoryMenu->addAction(tr("Clear"));
+        connect(clearTabHistory, &QAction::triggered, this, [this]() {
+            while(!m_closedTabs.isEmpty()) {
+                delete m_closedTabs.dequeue();
+            }
+        });
+    });
+
+    connect(menu, &QMenu::aboutToShow, this, [this, reopenTabAction, tabHistoryMenu]() {
+        if(m_closedTabs.isEmpty()) {
+            reopenTabAction->setEnabled(false);
+            tabHistoryMenu->setEnabled(false);
+        } else {
+            reopenTabAction->setEnabled(true);
+            tabHistoryMenu->setEnabled(true);
+        }
+    });
+
+    return menu;
+}
+
 int TabWidget::addTab(WebView *view)
 {
     Q_ASSERT_X(view != nullptr, "TabWidget::addTab", "Tried to add null view");
@@ -90,6 +138,15 @@ void TabWidget::deleteTab(int index)
 {
     // deleting the widget automatically removes the tab?
     auto *w = widget(index);
+
+    QWebEnginePage *p = qobject_cast<WebView *>(w)->page();
+    p->setParent(nullptr);
+    m_closedTabs.enqueue(p);
+
+    while(m_closedTabs.length() > 5) {
+        delete m_closedTabs.dequeue();
+    }
+
     disconnect(w);
     delete w;
 
diff --git a/src/subwindow/tabwidget.h b/src/subwindow/tabwidget.h
index 793e041..a62d120 100644
--- a/src/subwindow/tabwidget.h
+++ b/src/subwindow/tabwidget.h
@@ -10,10 +10,12 @@
 #define SMOLBOTE_TABWIDGET_H
 
 #include <QTabWidget>
+#include <QQueue>
 
 class QAction;
 class QMenu;
 class WebView;
+class QWebEnginePage;
 class TabWidget : public QTabWidget
 {
     Q_OBJECT
@@ -22,6 +24,8 @@ public:
     explicit TabWidget(QWidget *parent = nullptr);
     ~TabWidget() override;
 
+    QMenu *createTabMenu(QWidget *parent = nullptr);
+
 public slots:
     int addTab(WebView *view);
     void deleteTab(int index);
@@ -32,6 +36,7 @@ protected:
 
 private:
     QMenu *tabContextMenu;
+    QQueue<QWebEnginePage *> m_closedTabs;
 };
 
 #endif // SMOLBOTE_TABWIDGET_H
-- 
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