Fixed deleting history entries in history manager.

- also significally improved performance when deleting more
  entries at once

src/lib/history/historymanager.cpp

@@ -124,30 +124,45 @@ void HistoryManager::copyUrl()
 
 void HistoryManager::deleteItem()
 {
+    QList<int> list;
+
     foreach(QTreeWidgetItem * item, ui->historyTree->selectedItems()) {
         if (!item) {
-            return;
+            continue;
         }
 
         if (!item->parent()) {
+            QList<QTreeWidgetItem*> items;
+
             for (int i = 0; i < item->childCount(); i++) {
                 QTreeWidgetItem* children = item->child(i);
-                int id = children->whatsThis(1).toInt();
-                m_historyModel->deleteHistoryEntry(id);
+                if (children->isHidden()) {
+                    continue;
+                }
 
-                ui->historyTree->deleteItem(children);
+                int id = children->whatsThis(1).toInt();
+
+                list.append(id);
                 m_ignoredIds.append(id);
+                items.append(children);
             }
-            ui->historyTree->deleteItem(item);
+
+            if (item->childCount() == 0) {
+                items.append(item);
+            }
+            ui->historyTree->deleteItems(items);
         }
         else {
             int id = item->whatsThis(1).toInt();
-            m_historyModel->deleteHistoryEntry(id);
+
+            list.append(id);
+            m_ignoredIds.append(id);
 
             ui->historyTree->deleteItem(item);
-            m_ignoredIds.append(id);
         }
     }
+
+    m_historyModel->deleteHistoryEntry(list);
 }
 
 void HistoryManager::historyEntryAdded(const HistoryEntry &entry)

src/lib/history/historymodel.cpp

@@ -19,10 +19,10 @@
 #include "tabbedwebview.h"
 #include "qupzilla.h"
 #include "iconprovider.h"
-#include "databasewriter.h"
 #include "settings.h"
 
-#include <QThread>
+#include <QSqlDatabase>
+#include <QSqlQuery>
 
 HistoryModel::HistoryModel(QupZilla* mainClass)
     : QObject()
@@ -31,14 +31,8 @@ HistoryModel::HistoryModel(QupZilla* mainClass)
 {
     loadSettings();
 
-    qRegisterMetaType<HistoryEntry>("HistoryEntry");
-
-    QThread* t = new QThread(this);
-    t->start();
-    moveToThread(t);
-
     connect(this, SIGNAL(signalAddHistoryEntry(QUrl, QString)), this, SLOT(slotAddHistoryEntry(QUrl, QString)));
-    connect(this, SIGNAL(signalDeleteHistoryEntry(int)), this, SLOT(slotDeleteHistoryEntry(int)));
+    connect(this, SIGNAL(signalDeleteHistoryEntry(QList<int>)), this, SLOT(slotDeleteHistoryEntry(QList<int>)));
 }
 
 void HistoryModel::loadSettings()
@@ -123,7 +117,15 @@ void HistoryModel::slotAddHistoryEntry(const QUrl &url, QString title)
 // DeleteHistoryEntry
 void HistoryModel::deleteHistoryEntry(int index)
 {
-    emit signalDeleteHistoryEntry(index);
+    QList<int> list;
+    list.append(index);
+
+    deleteHistoryEntry(list);
+}
+
+void HistoryModel::deleteHistoryEntry(const QList<int> &list)
+{
+    emit signalDeleteHistoryEntry(list);
 }
 
 void HistoryModel::deleteHistoryEntry(const QString &url, const QString &title)
@@ -138,32 +140,41 @@ void HistoryModel::deleteHistoryEntry(const QString &url, const QString &title)
         deleteHistoryEntry(id);
     }
 }
-
-void HistoryModel::slotDeleteHistoryEntry(int index)
+#include <QDebug>
+void HistoryModel::slotDeleteHistoryEntry(const QList<int> &list)
 {
-    QSqlQuery query;
-    query.prepare("SELECT id, count, date, url, title FROM history WHERE id=?");
-    query.bindValue(0, index);
-    query.exec();
-    if (!query.next()) {
-        return;
+    QSqlDatabase db = QSqlDatabase::database();
+    db.transaction();
+
+    foreach (int index, list) {
+        QSqlQuery query;
+        query.prepare("SELECT id, count, date, url, title FROM history WHERE id=?");
+        query.bindValue(0, index);
+        query.exec();
+        if (!query.next()) {
+            qDebug() << "invalid id" << index;
+            continue;
+        }
+
+        HistoryEntry entry;
+        entry.id = query.value(0).toInt();
+        entry.count = query.value(1).toInt();
+        entry.date = QDateTime::fromMSecsSinceEpoch(query.value(2).toLongLong());
+        entry.url = query.value(3).toUrl();
+        entry.title = query.value(4).toString();
+
+        query.prepare("DELETE FROM history WHERE id=?");
+        query.bindValue(0, index);
+        query.exec();
+
+        query.prepare("DELETE FROM icons WHERE url=?");
+        query.bindValue(0, entry.url.toEncoded(QUrl::RemoveFragment));
+        query.exec();
+
+        emit historyEntryDeleted(entry);
     }
 
-    HistoryEntry entry;
-    entry.id = query.value(0).toInt();
-    entry.count = query.value(1).toInt();
-    entry.date = QDateTime::fromMSecsSinceEpoch(query.value(2).toLongLong());
-    entry.url = query.value(3).toUrl();
-    entry.title = query.value(4).toString();
-
-    query.prepare("DELETE FROM history WHERE id=?");
-    query.bindValue(0, index);
-    query.exec();
-    query.prepare("DELETE FROM icons WHERE url=?");
-    query.bindValue(0, entry.url.toEncoded(QUrl::RemoveFragment));
-    query.exec();
-
-    emit historyEntryDeleted(entry);
+    db.commit();
 }
 
 bool HistoryModel::urlIsStored(const QString &url)

src/lib/history/historymodel.h

@@ -50,6 +50,7 @@ public:
     void addHistoryEntry(const QUrl &url, QString title);
 
     void deleteHistoryEntry(int index);
+    void deleteHistoryEntry(const QList<int> &list);
     void deleteHistoryEntry(const QString &url, const QString &title);
 
     bool urlIsStored(const QString &url);
@@ -65,7 +66,7 @@ public:
 
 private slots:
     void slotAddHistoryEntry(const QUrl &url, QString title);
-    void slotDeleteHistoryEntry(int index);
+    void slotDeleteHistoryEntry(const QList<int> &list);
 
 signals:
     void historyEntryAdded(HistoryEntry entry);
@@ -75,7 +76,7 @@ signals:
     void historyClear();
 
     void signalAddHistoryEntry(QUrl url, QString title);
-    void signalDeleteHistoryEntry(int index);
+    void signalDeleteHistoryEntry(QList<int> list);
 
 private:
     bool m_isSaving;

src/lib/other/databasewriter.cpp

@@ -17,15 +17,11 @@
 * ============================================================ */
 #include "databasewriter.h"
 
-#include <QThread>
 #include <QTimer>
 
 DatabaseWriter::DatabaseWriter()
     : QObject()
 {
-    QThread* t = new QThread(this);
-    t->start();
-    moveToThread(t);
 }
 
 void DatabaseWriter::executeQuery(const QSqlQuery &query)

src/lib/other/pagescreen.h

@@ -28,8 +28,6 @@ namespace Ui
 class PageScreen;
 }
 
-class QAbstractButton;
-
 class WebView;
 
 class QT_QUPZILLA_EXPORT PageScreen : public QDialog

src/lib/tools/treewidget.cpp

@@ -213,3 +213,10 @@ void TreeWidget::deleteItem(QTreeWidgetItem* item)
 
     delete item;
 }
+
+void TreeWidget::deleteItems(const QList<QTreeWidgetItem *> &items)
+{
+    m_refreshAllItemsNeeded = true;
+
+    qDeleteAll(items);
+}

src/lib/tools/treewidget.h

@@ -41,6 +41,7 @@ public:
     void insertTopLevelItems(int index, const QList<QTreeWidgetItem*> &items);
 
     void deleteItem(QTreeWidgetItem* item);
+    void deleteItems(const QList<QTreeWidgetItem*> &items);
 
 signals:
     void itemControlClicked(QTreeWidgetItem* item);