Fix some minor issues and leaks

src/common/RefreshDeferrer.cpp

@@ -15,6 +15,9 @@ RefreshDeferrer::~RefreshDeferrer()
 bool RefreshDeferrer::attemptRefresh(RefreshDeferrerParams params)
 {
     if (dockWidget->isVisibleToUser()) {
+        if (acc) {
+            acc->ignoreParams(params);
+        }
         return true;
     } else {
         dirty = true;

src/widgets/CutterDockWidget.cpp

@@ -50,7 +50,6 @@ void CutterDockWidget::updateIsVisibleToUser()
         return;
     }
     isVisibleToUserCurrent = visibleToUser;
-    qDebug() << this << "isVisibleToUser changed to" << isVisibleToUserCurrent;
     if (isVisibleToUserCurrent) {
         emit becameVisibleToUser();
     }

src/widgets/CutterDockWidget.h

@@ -26,7 +26,7 @@ signals:
 private:
     QAction *action;
 
-    bool isVisibleToUserCurrent;
+    bool isVisibleToUserCurrent = false;
     void updateIsVisibleToUser();
 
 protected:

src/widgets/GraphView.cpp

@@ -740,18 +740,19 @@ void GraphView::showBlock(GraphBlock *block, bool animated)
     target_x = std::min(horizontalScrollBar()->maximum(), target_x);
     target_y = std::min(verticalScrollBar()->maximum(), target_y);
     if (animated) {
-        QPropertyAnimation *animation_x = new QPropertyAnimation(horizontalScrollBar(), "value");
+        QPropertyAnimation *animation_x = new QPropertyAnimation(horizontalScrollBar(), "value", this);
+        animation_x->deleteLater();
         animation_x->setDuration(500);
         animation_x->setStartValue(horizontalScrollBar()->value());
         animation_x->setEndValue(target_x);
         animation_x->setEasingCurve(QEasingCurve::InOutQuad);
-        animation_x->start();
-        QPropertyAnimation *animation_y = new QPropertyAnimation(verticalScrollBar(), "value");
+        animation_x->start(QAbstractAnimation::DeleteWhenStopped);
+        QPropertyAnimation *animation_y = new QPropertyAnimation(verticalScrollBar(), "value", this);
         animation_y->setDuration(500);
         animation_y->setStartValue(verticalScrollBar()->value());
         animation_y->setEndValue(target_y);
         animation_y->setEasingCurve(QEasingCurve::InOutQuad);
-        animation_y->start();
+        animation_y->start(QAbstractAnimation::DeleteWhenStopped);
     } else {
         horizontalScrollBar()->setValue(target_x);
         verticalScrollBar()->setValue(target_y);

src/widgets/HexdumpWidget.cpp

@@ -80,6 +80,11 @@ HexdumpWidget::HexdumpWidget(MainWindow *main, QAction *action) :
     updateHeaders();
 
     this->setWindowTitle(tr("Hexdump"));
+
+    refreshDeferrer = createReplacingRefreshDeferrer<RVA>(false, [this](const RVA *offset) {
+        refresh(offset ? *offset : RVA_INVALID);
+    });
+
     connect(&syncAction, SIGNAL(triggered(bool)), this, SLOT(toggleSync()));
 
     // Set hexdump context menu
@@ -119,12 +124,6 @@ HexdumpWidget::HexdumpWidget(MainWindow *main, QAction *action) :
     connect(seekable, &CutterSeekable::seekableSeekChanged, this, &HexdumpWidget::onSeekChanged);
     connect(&rangeDialog, &QDialog::accepted, this, &HexdumpWidget::on_rangeDialogAccepted);
 
-    connect(this, &CutterDockWidget::becameVisibleToUser, this, [this]() {
-        if (hexdumpDirty) {
-            refresh();
-        }
-    });
-
     format = Format::Hex;
     initParsing();
     selectHexPreview();
@@ -320,11 +319,8 @@ void HexdumpWidget::highlightHexWords(const QString &str)
 
 void HexdumpWidget::refresh(RVA addr)
 {
-    if (!isVisibleToUser()) {
-        hexdumpDirty = true;
+    if (!refreshDeferrer->attemptRefresh(addr == RVA_INVALID ? nullptr : new RVA(addr))) {
         return;
-    } else {
-        hexdumpDirty = false;
     }
 
     ut64 loadLines = 0;

src/widgets/HexdumpWidget.h

@@ -21,6 +21,8 @@
 
 #include "ui_HexdumpWidget.h"
 
+class RefreshDeferrer;
+
 class HexdumpWidget : public CutterDockWidget
 {
     Q_OBJECT
@@ -71,7 +73,7 @@ private:
     RVA first_loaded_address = RVA_INVALID;
     RVA last_loaded_address = RVA_INVALID;
 
-    bool hexdumpDirty = false;
+    RefreshDeferrer *refreshDeferrer;
 
     void refresh(RVA addr = RVA_INVALID);
     void selectHexPreview();

src/widgets/Omnibar.cpp

@@ -50,6 +50,9 @@ void Omnibar::refresh(const QStringList &flagList)
 void Omnibar::restoreCompleter()
 {
     QCompleter *completer = this->completer();
+    if (!completer) {
+        return;
+    }
     completer->setFilterMode(Qt::MatchContains);
 }