1 files changed, 37 insertions, 0 deletions
diff --git a/SQLiteStudio3/coreSQLiteStudio/common/lazytrigger.cpp b/SQLiteStudio3/coreSQLiteStudio/common/lazytrigger.cpp
new file mode 100644
index 0000000..2c39f34
--- /dev/null
+++ b/SQLiteStudio3/coreSQLiteStudio/common/lazytrigger.cpp
@@ -0,0 +1,37 @@
+#include "lazytrigger.h"
+#include <QTimer>
+
+LazyTrigger::LazyTrigger(int delay, QObject* parent, const char* slot) :
+    QObject(parent)
+{
+    timer = new QTimer(this);
+    timer->setSingleShot(true);
+    timer->setInterval(delay);
+    connect(timer, &QTimer::timeout, this, &LazyTrigger::triggered);
+    if (slot)
+        connect(timer, SIGNAL(timeout()), parent, slot);
+}
+
+LazyTrigger::LazyTrigger(int delay, LazyTrigger::Condition condition, QObject* parent, const char* slot) :
+    LazyTrigger(delay, parent, slot)
+{
+    this->condition = condition;
+}
+
+void LazyTrigger::setDelay(int delay)
+{
+    timer->setInterval(delay);
+}
+
+void LazyTrigger::schedule()
+{
+    timer->stop();
+
+    if (!condition || condition())
+        timer->start();
+}
+
+void LazyTrigger::cancel()
+{
+    timer->stop();
+}