Fetch Strings asynchronously

src/Cutter.pro

@@ -166,7 +166,8 @@ SOURCES += \
     widgets/StackWidget.cpp \
     widgets/RegistersWidget.cpp \
     widgets/BacktraceWidget.cpp \
-    dialogs/OpenFileDialog.cpp
+    dialogs/OpenFileDialog.cpp \
+    utils/StringsTask.cpp
 
 HEADERS  += \
     Cutter.h \
@@ -247,7 +248,8 @@ HEADERS  += \
     widgets/StackWidget.h \
     widgets/RegistersWidget.h \
     widgets/BacktraceWidget.h \
-    dialogs/OpenFileDialog.h
+    dialogs/OpenFileDialog.h \
+    utils/StringsTask.h
 
 FORMS    += \
     dialogs/AboutDialog.ui \

src/Main.cpp

@@ -4,6 +4,8 @@
 
 int main(int argc, char *argv[])
 {
+    qRegisterMetaType<QList<StringDescription>>();
+
     CutterApplication a(argc, argv);
 
     int ret = a.exec();

src/utils/StringsTask.cpp

@@ -0,0 +1,8 @@
+
+#include "StringsTask.h"
+
+void StringsTask::runTask()
+{
+    auto strings = Core()->getAllStrings();
+    emit stringSearchFinished(strings);
+}

src/utils/StringsTask.h

@@ -0,0 +1,22 @@
+
+#ifndef STRINGSASYNCTASK_H
+#define STRINGSASYNCTASK_H
+
+#include "utils/AsyncTask.h"
+#include "Cutter.h"
+
+class StringsTask : public AsyncTask
+{
+    Q_OBJECT
+
+public:
+    QString getTitle() override                     { return tr("Searching for Strings"); }
+
+signals:
+    void stringSearchFinished(const QList<StringDescription> &strings);
+
+protected:
+    void runTask() override;
+};
+
+#endif //STRINGSASYNCTASK_H

src/widgets/StringsWidget.cpp

@@ -172,12 +172,25 @@ void StringsWidget::on_stringsTreeView_doubleClicked(const QModelIndex &index)
 }
 
 void StringsWidget::refreshStrings()
+{
+    if (task) {
+        task->wait();
+    }
+
+    task = QSharedPointer<StringsTask>(new StringsTask());
+    connect(task.data(), &StringsTask::stringSearchFinished, this, &StringsWidget::stringSearchFinished);
+    Core()->getAsyncTaskManager()->start(task);
+}
+
+void StringsWidget::stringSearchFinished(const QList<StringDescription> &strings)
 {
     model->beginReload();
-    strings = Core()->getAllStrings();
+    this->strings = strings;
     model->endReload();
 
     qhelpers::adjustColumns(ui->stringsTreeView, 5, 0);
     if (ui->stringsTreeView->columnWidth(1) > 300)
         ui->stringsTreeView->setColumnWidth(1, 300);
+
+    task = nullptr;
 }

src/widgets/StringsWidget.h

@@ -5,6 +5,7 @@
 
 #include "Cutter.h"
 #include "CutterDockWidget.h"
+#include "utils/StringsTask.h"
 
 #include <QAbstractListModel>
 #include <QSortFilterProxyModel>
@@ -66,10 +67,13 @@ private slots:
     void on_stringsTreeView_doubleClicked(const QModelIndex &index);
 
     void refreshStrings();
+    void stringSearchFinished(const QList<StringDescription> &strings);
 
 private:
     std::unique_ptr<Ui::StringsWidget> ui;
 
+    QSharedPointer<StringsTask> task;
+
     StringsModel *model;
     StringsSortFilterProxyModel *proxy_model;
     QList<StringDescription> strings;