Add text debounce to QuickFilterView & ComboQuickFilterView (#3072)

src/widgets/ComboQuickFilterView.cpp

@@ -6,8 +6,14 @@ ComboQuickFilterView::ComboQuickFilterView(QWidget *parent)
 {
     ui->setupUi(this);
 
+    debounceTimer = new QTimer(this);
+    debounceTimer->setSingleShot(true);
+
+    connect(debounceTimer, &QTimer::timeout, this,
+            [this]() { emit filterTextChanged(ui->lineEdit->text()); });
+
     connect(ui->lineEdit, &QLineEdit::textChanged, this,
-            [this](const QString &text) { emit filterTextChanged(text); });
+            [this](const QString &text) { debounceTimer->start(150); });
 }
 
 ComboQuickFilterView::~ComboQuickFilterView()

src/widgets/ComboQuickFilterView.h

@@ -5,6 +5,7 @@
 
 #include <QWidget>
 #include <QComboBox>
+#include <QTimer>
 
 namespace Ui {
 class ComboQuickFilterView;
@@ -32,6 +33,7 @@ signals:
 
 private:
     Ui::ComboQuickFilterView *ui;
+    QTimer *debounceTimer;
 };
 
 #endif // COMBOQUICKFILTERVIEW_H

src/widgets/QuickFilterView.cpp

@@ -7,10 +7,16 @@ QuickFilterView::QuickFilterView(QWidget *parent, bool defaultOn)
 {
     ui->setupUi(this);
 
+    debounceTimer = new QTimer(this);
+    debounceTimer->setSingleShot(true);
+
     connect(ui->closeFilterButton, &QAbstractButton::clicked, this, &QuickFilterView::closeFilter);
 
+    connect(debounceTimer, &QTimer::timeout, this,
+            [this]() { emit filterTextChanged(ui->filterLineEdit->text()); });
+
     connect(ui->filterLineEdit, &QLineEdit::textChanged, this,
-            [this](const QString &text) { emit filterTextChanged(text); });
+            [this](const QString &text) { debounceTimer->start(150); });
 
     if (!defaultOn) {
         closeFilter();

src/widgets/QuickFilterView.h

@@ -7,6 +7,7 @@
 #include <memory>
 
 #include <QWidget>
+#include <QTimer>
 
 namespace Ui {
 class QuickFilterView;
@@ -31,6 +32,7 @@ signals:
 
 private:
     std::unique_ptr<Ui::QuickFilterView> ui;
+    QTimer *debounceTimer;
 };
 
 #endif // QUICKFILTERVIEW_H