Open only designer related project files in Design Studio

DocumentManager::setFileDialogFilter allows overriding
the open Project/File filter. In QDS we only allow the relevant suffixes.

Task-number: QDS-5825
Change-Id: I6cdc0f15628a215edc41cdaeb485bd17e08ef4ec
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/coreplugin/documentmanager.cpp

@@ -199,6 +199,7 @@ public:
     IDocument *m_blockedIDocument = nullptr;
 
     QAction *m_saveAllAction;
+    QString fileDialogFilterOverride;
 };
 
 static DocumentManager *m_instance;
@@ -770,6 +771,16 @@ bool DocumentManager::saveDocument(IDocument *document,
     return ret;
 }
 
+QString DocumentManager::fileDialogFilter(QString *selectedFilter)
+{
+    if (!d->fileDialogFilterOverride.isEmpty()) {
+        if (selectedFilter)
+            *selectedFilter = d->fileDialogFilterOverride.split(";;").first();
+        return d->fileDialogFilterOverride;
+    }
+    return allDocumentFactoryFiltersString(selectedFilter);
+}
+
 QString DocumentManager::allDocumentFactoryFiltersString(QString *allFilesFilter = nullptr)
 {
     QSet<QString> uniqueFilters;
@@ -1531,6 +1542,11 @@ void DocumentManager::notifyFilesChangedInternally(const FilePaths &filePaths)
     emit m_instance->filesChangedInternally(filePaths);
 }
 
+void DocumentManager::setFileDialogFilter(const QString &filter)
+{
+    d->fileDialogFilterOverride = filter;
+}
+
 void DocumentManager::registerSaveAllAction()
 {
     d->registerSaveAllAction();

src/plugins/coreplugin/documentmanager.h

@@ -142,6 +142,10 @@ public:
        lead to any editors to reload or any other editor manager actions. */
     static void notifyFilesChangedInternally(const Utils::FilePaths &filePaths);
 
+    static void setFileDialogFilter(const QString &filter);
+
+    static QString fileDialogFilter(QString *selectedFilter = nullptr);
+
 signals:
     /* Used to notify e.g. the code model to update the given files. Does *not*
        lead to any editors to reload or any other editor manager actions. */

src/plugins/coreplugin/editormanager/editormanager.cpp

@@ -3231,7 +3231,7 @@ void EditorManager::addCloseEditorListener(const std::function<bool (IEditor *)>
 FilePaths EditorManager::getOpenFilePaths()
 {
     QString selectedFilter;
-    const QString &fileFilters = DocumentManager::allDocumentFactoryFiltersString(&selectedFilter);
+    const QString &fileFilters = DocumentManager::fileDialogFilter(&selectedFilter);
     return DocumentManager::getOpenFileNames(fileFilters, {}, &selectedFilter);
 }
 

src/plugins/studiowelcome/studiowelcomeplugin.cpp

@@ -33,6 +33,7 @@
 #include <coreplugin/coreconstants.h>
 #include <coreplugin/dialogs/restartdialog.h>
 #include <coreplugin/editormanager/editormanager.h>
+#include <coreplugin/documentmanager.h>
 #include <coreplugin/helpmanager.h>
 #include <coreplugin/icore.h>
 #include <coreplugin/imode.h>
@@ -52,11 +53,12 @@
 #include <qmldesigner/components/componentcore/theme.h>
 
 #include <utils/checkablemessagebox.h>
+#include <utils/hostosinfo.h>
 #include <utils/icon.h>
 #include <utils/infobar.h>
+#include <utils/mimetypes/mimedatabase.h>
 #include <utils/stringutils.h>
 #include <utils/theme/theme.h>
-#include <utils/hostosinfo.h>
 
 #include <QAbstractListModel>
 #include <QApplication>
@@ -605,6 +607,12 @@ void StudioWelcomePlugin::extensionsInitialized()
             Core::ICore::resourcePath("qmldesigner/studio_templates"));
 
         Core::ICore::setNewDialogFactory([](QWidget *parent) { return new QdsNewDialog(parent); });
+
+        const QString filters = QString("Project (*.qmlproject);;UI file (*.ui.qml);;QML file "
+                                        "(*.qml);;JavaScript file (*.js);;%1")
+                                    .arg(Utils::allFilesFilterString());
+
+        Core::DocumentManager::setFileDialogFilter(filters);
     }
 
     if (showSplashScreen()) {