When files are dropped on a database window open them as sql files.

pglab/DatabaseWindow.cpp

@@ -14,6 +14,7 @@
 #include <QMenuBar>
 #include <QMessageBox>
 #include <QMetaMethod>
+#include <QMimeData>
 #include <QStandardPaths>
 #include <QStatusBar>
 #include <QTableView>
@@ -44,6 +45,8 @@ DatabaseWindow::DatabaseWindow(MasterController *master, QWidget *parent)
 	initMenus();
 
 	QMetaObject::connectSlotsByName(this);
+
+    setAcceptDrops(true);
 }
 
 DatabaseWindow::~DatabaseWindow() = default;
@@ -397,15 +400,30 @@ void DatabaseWindow::closeTab(int index)
 	}	
 }
 
+void DatabaseWindow::openSqlFile(QString file_name)
+{
+    if ( ! file_name.isEmpty()) {
+        auto *ct = new QueryTool(this, this);
+        if (ct->load(file_name)) {
+            ct->addAction(actionExecuteQuery);
+            addPage(ct, ct->title());
+        }
+        else {
+            delete ct;
+        }
+    }
+
+}
+
 void DatabaseWindow::catalogLoaded()
 {
     try	{
         m_database = loadWatcher.future().result();
 
-//		for (auto f : { "user", "pg_catalog", "information_schema" }) {
+        //		for (auto f : { "user", "pg_catalog", "information_schema" }) {
-//			// TODO open inspector windows
+        //			// TODO open inspector windows
-//		}
+        //		}
-//		newCreateTablePage();
+        //		newCreateTablePage();
         on_actionNewSql_triggered();
     } catch (const OpenDatabaseException &ex) {
         QMessageBox::critical(this, "Error reading database", ex.text());
@@ -557,16 +575,7 @@ void DatabaseWindow::on_actionOpenSql_triggered()
 	QString home_dir = QStandardPaths::locate(QStandardPaths::HomeLocation, "", QStandardPaths::LocateDirectory);
 	QString file_name = QFileDialog::getOpenFileName(this,
 		tr("Open sql query"), home_dir, tr("SQL files (*.sql *.txt)"));
-	if ( ! file_name.isEmpty()) {
+    openSqlFile(file_name);
-		auto *ct = new QueryTool(this, this);
-		if (ct->load(file_name)) {
-			ct->addAction(actionExecuteQuery);
-			addPage(ct, ct->title());
-		}
-		else {
-			delete ct;
-		}
-	}
 }
 
 void DatabaseWindow::on_actionPasteLangString_triggered()
@@ -664,3 +673,19 @@ void DatabaseWindow::showStatusBarMessage(QString message)
 {
     statusBar()->showMessage(message);
 }
+
+void DatabaseWindow::dragEnterEvent(QDragEnterEvent *event)
+{
+    if (event->mimeData()->hasUrls()) {
+        event->acceptProposedAction();
+    }
+}
+
+void DatabaseWindow::dropEvent(QDropEvent *event)
+{
+    foreach (const QUrl &url, event->mimeData()->urls()) {
+        QString file_name = url.toLocalFile();
+        qDebug() << "Dropped file:" << file_name;
+        openSqlFile(file_name);
+    }
+}

pglab/DatabaseWindow.h

@@ -128,6 +128,8 @@ private:
 	void newCatalogInspectorPage(QString caption, NamespaceFilter filter);
     void newServerInspectorPage();
 	void closeTab(int index);
+    void openSqlFile(QString file_name);
+
 private slots:
 	void catalogLoaded();
 	void tableSelected(Oid tableoid);
@@ -167,6 +169,11 @@ public:
 	virtual void setIconForWidget(QWidget *widget, QIcon icon) override;
 	virtual std::shared_ptr<OpenDatabase> openDatabase() override;
 	virtual void showStatusBarMessage(QString message) override;
+
+    // QWidget interface
+protected:
+    virtual void dragEnterEvent(QDragEnterEvent *event) override;
+    virtual void dropEvent(QDropEvent *event) override;
 };
 
 #endif // MAINWINDOW_H

pglab/QueryTool.cpp

@@ -46,6 +46,7 @@ QueryTool::QueryTool(IDatabaseWindow *context, QWidget *parent)
 	}
 
 	connect(ui->queryEdit, &QPlainTextEdit::textChanged, this, &QueryTool::queryTextChanged);
+    ui->queryEdit->setAcceptDrops(false);
 
 	m_queryParamListController = new QueryParamListController(ui->paramTableView, m_context->openDatabase(), this);
 	connect(ui->addButton, &QPushButton::clicked, m_queryParamListController,