fixed #889

src/librssguard/gui/dialogs/formmessagefiltersmanager.cpp

@@ -99,6 +99,17 @@ FormMessageFiltersManager::FormMessageFiltersManager(FeedReader* reader,
           this,
           &FormMessageFiltersManager::showMessageContextMenu);
 
+  connect(m_ui.m_searchWidget, &SearchTextWidget::searchCancelled, this, [this]() {
+    m_ui.m_txtScript->find(QString());
+  });
+  connect(m_ui.m_searchWidget, &SearchTextWidget::searchForText, this, [this](const QString& text, bool backwards) {
+    m_ui.m_txtScript->find(text, backwards ? QTextDocument::FindFlag::FindBackward : QTextDocument::FindFlags());
+    m_ui.m_searchWidget->setFocus();
+  });
+
+  m_ui.m_txtScript->installEventFilter(this);
+  m_ui.m_searchWidget->hide();
+
   initializeTestingMessage();
   initializePremadeFilters();
   loadFilters();
@@ -119,6 +130,30 @@ MessageFilter* FormMessageFiltersManager::selectedFilter() const {
   }
 }
 
+bool FormMessageFiltersManager::eventFilter(QObject* watched, QEvent* event) {
+  Q_UNUSED(watched)
+
+  if (event->type() == QEvent::KeyPress) {
+    QKeyEvent* key_event = static_cast<QKeyEvent*>(event);
+
+    // Find text.
+    if (key_event->matches(QKeySequence::StandardKey::Find)) {
+      m_ui.m_searchWidget->clear();
+      m_ui.m_searchWidget->show();
+      m_ui.m_searchWidget->setFocus();
+      return true;
+    }
+
+    // Hide visible search box.
+    if (key_event->key() == Qt::Key::Key_Escape && m_ui.m_searchWidget->isVisible()) {
+      m_ui.m_searchWidget->hide();
+      return true;
+    }
+  }
+
+  return false;
+}
+
 ServiceRoot* FormMessageFiltersManager::selectedAccount() const {
   auto dat = m_ui.m_cmbAccounts->currentData(Qt::ItemDataRole::UserRole);
 

src/librssguard/gui/dialogs/formmessagefiltersmanager.h

@@ -26,6 +26,9 @@ class FormMessageFiltersManager : public QDialog {
     MessageFilter* selectedFilter() const;
     ServiceRoot* selectedAccount() const;
 
+  protected:
+    virtual bool eventFilter(QObject* watched, QEvent* event);
+
   private slots:
     void filterMessagesLikeThis(const Message& msg);
     void showMessageContextMenu(QPoint pos);

src/librssguard/gui/dialogs/formmessagefiltersmanager.ui

@@ -179,17 +179,24 @@
            </widget>
           </item>
           <item row="1" column="1">
-           <widget class="QPlainTextEdit" name="m_txtScript">
+           <layout class="QVBoxLayout" name="verticalLayout_2">
-            <property name="sizePolicy">
+            <item>
-             <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+             <widget class="QPlainTextEdit" name="m_txtScript">
-              <horstretch>0</horstretch>
+              <property name="sizePolicy">
-              <verstretch>1</verstretch>
+               <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
-             </sizepolicy>
+                <horstretch>0</horstretch>
-            </property>
+                <verstretch>1</verstretch>
-            <property name="placeholderText">
+               </sizepolicy>
-             <string>Your JavaScript-based article filtering logic</string>
+              </property>
-            </property>
+              <property name="placeholderText">
-           </widget>
+               <string>Your JavaScript-based article filtering logic</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="SearchTextWidget" name="m_searchWidget" native="true"/>
+            </item>
+           </layout>
           </item>
           <item row="2" column="1">
            <layout class="QHBoxLayout" name="horizontalLayout_2">
@@ -445,6 +452,14 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>SearchTextWidget</class>
+   <extends>QWidget</extends>
+   <header>searchtextwidget.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>m_listFilters</tabstop>
   <tabstop>m_btnAddNew</tabstop>