- FEATURE: Added right click menu in search engine to clear completion history

Changelog

@@ -4,6 +4,7 @@
     - FEATURE: Display total amount of uploaded data in finished list
     - FEATURE: Resizing a column in a search results tab affects all tabs
     - FEATURE: Search results tab columns are now remembered upon startup
+    - FEATURE: Added right click menu in search engine to clear completion history
     - BUGFIX: Provide more helpful explanation when an I/O error occured
     - COSMETIC: Redesigned program preferences
     - COSMETIC: Updated icons set

src/search.ui

@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>search_engine</class>
  <widget class="QWidget" name="search_engine">
@@ -53,6 +54,9 @@
          <height>22</height>
         </size>
        </property>
+       <property name="contextMenuPolicy">
+        <enum>Qt::CustomContextMenu</enum>
+       </property>
       </widget>
      </item>
      <item>

src/searchEngine.cpp

@@ -39,6 +39,7 @@
 #include <iostream>
 #include <QTimer>
 #include <QDir>
+#include <QMenu>
 
 #include "searchEngine.h"
 #include "bittorrent.h"
@@ -53,9 +54,8 @@ SearchEngine::SearchEngine(bittorrent *BTSession, QSystemTrayIcon *myTrayIcon, b
   setupUi(this);
   // new qCompleter to the search pattern
   startSearchHistory();
-  searchCompleter = new QCompleter(searchHistory, this);
+  searchCompleter = 0;
-  searchCompleter->setCaseSensitivity(Qt::CaseInsensitive);
+  createCompleter();
-  search_pattern->setCompleter(searchCompleter);
   // Add close tab button
   closeTab_button = new QPushButton();
   closeTab_button->setIcon(QIcon(QString::fromUtf8(":/Icons/gnome-shutdown.png")));
@@ -79,6 +79,7 @@ SearchEngine::SearchEngine(bittorrent *BTSession, QSystemTrayIcon *myTrayIcon, b
   loadEngineSettings();
   // Update nova.py search plugin if necessary
   updateNova();
+  connect(search_pattern, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(displayPatternContextMenu(QPoint)));
 }
 
 SearchEngine::~SearchEngine(){
@@ -94,9 +95,23 @@ SearchEngine::~SearchEngine(){
 	}
   delete searchTimeout;
   delete searchProcess;
+  if(searchCompleter)
     delete searchCompleter;
 }
 
+void SearchEngine::displayPatternContextMenu(QPoint) {
+  QMenu myMenu(this);
+  QAction clearHistoryAct(tr("Clear history"), &myMenu);
+  myMenu.addAction(&clearHistoryAct);
+  QAction *act = myMenu.exec(QCursor::pos());
+  if(act != 0) {
+    if(act == &clearHistoryAct) {
+      searchHistory.clear();
+      createCompleter();
+    }
+  }
+}
+
 void SearchEngine::tab_changed(int t)
 {//when we switch from a tab that is not empty to another that is empty the download button 
 	//doesn't have to be available
@@ -178,12 +193,9 @@ void SearchEngine::on_search_button_clicked(){
     // verify the max size of the history
     if(searchHistory.size() > SEARCHHISTORY_MAXSIZE)
       searchHistory = searchHistory.mid(searchHistory.size()/2,searchHistory.size()/2);
-    searchCompleter = new QCompleter(searchHistory, this);
+    createCompleter();
-    searchCompleter->setCaseSensitivity(Qt::CaseInsensitive);
-    search_pattern->setCompleter(searchCompleter);
   }
 
-
   // Getting checked search engines
   Q_ASSERT(!enabled_engines.empty());
   QStringList params;
@@ -203,6 +215,14 @@ void SearchEngine::on_search_button_clicked(){
   searchTimeout->start(180000); // 3min
 }
 
+void SearchEngine::createCompleter() {
+  if(searchCompleter)
+    delete searchCompleter;
+  searchCompleter = new QCompleter(searchHistory, this);
+  searchCompleter->setCaseSensitivity(Qt::CaseInsensitive);
+  search_pattern->setCompleter(searchCompleter);
+}
+
 void SearchEngine::propagateSectionResized(int index, int , int newsize) {
   foreach(SearchTab * tab, all_tab) {
     tab->getCurrentTreeView()->setColumnWidth(index, newsize);

src/searchEngine.h

@@ -36,6 +36,7 @@
 #include <QProcess>
 #include <QList>
 #include <QPair>
+#include <QPointer>
 #include "ui_search.h"
 #include "engineSelectDlg.h"
 #include "SearchTab.h"
@@ -57,7 +58,7 @@ class SearchEngine : public QWidget, public Ui::search_engine{
     bool no_search_results;
     QByteArray search_result_line_truncated;
     unsigned long nb_search_results;
-    QCompleter *searchCompleter;
+    QPointer<QCompleter> searchCompleter;
     QStringList searchHistory;
     bittorrent *BTSession;
     QSystemTrayIcon *myTrayIcon;
@@ -94,6 +95,8 @@ class SearchEngine : public QWidget, public Ui::search_engine{
     void saveResultsColumnsWidth();
 		void downloadFinished(int exitcode, QProcess::ExitStatus);
 		void downloadTorrent(QString engine_url, QString torrent_url);
+    void displayPatternContextMenu(QPoint);
+    void createCompleter();
 };
 
 #endif