Explorer: support drag&drop a directory to VNote to open it in Explorer

src/veditwindow.cpp

@@ -15,10 +15,15 @@
 #include "utils/viconutils.h"
 #include "vcart.h"
 #include "vhistorylist.h"
+#include "vnote.h"
+#include "vexplorer.h"
 
 extern VConfigManager *g_config;
+
 extern VMainWindow *g_mainWin;
 
+extern VNote *g_vnote;
+
 #define GET_TAB_FROM_SENDER() static_cast<QAction *>(sender())->data().toInt()
 
 VEditWindow::VEditWindow(VEditArea *editArea, QWidget *parent)
@@ -1189,24 +1194,41 @@ void VEditWindow::dropEvent(QDropEvent *p_event)
 {
     const QMimeData *mime = p_event->mimeData();
     if (mime->hasFormat("text/uri-list") && mime->hasUrls()) {
-        // Open external files in this edit window.
+        // Open external files in this edit window or open a direcotry in Explorer.
+        bool isDir = false;
         QStringList files;
         QList<QUrl> urls = mime->urls();
         for (int i = 0; i < urls.size(); ++i) {
-            QString file;
             if (urls[i].isLocalFile()) {
-                file = urls[i].toLocalFile();
-                QFileInfo fi(file);
-                if (fi.exists() && fi.isFile()) {
-                    file = QDir::cleanPath(fi.absoluteFilePath());
+                QFileInfo fi(urls[i].toLocalFile());
+                if (!fi.exists()) {
+                    continue;
+                }
+
+                QString file = QDir::cleanPath(fi.absoluteFilePath());
+                if (fi.isFile()) {
+                    files.append(file);
+                } else if (urls.size() == 1) {
+                    isDir = true;
                     files.append(file);
                 }
             }
         }
 
         if (!files.isEmpty()) {
-            focusWindow();
-            g_mainWin->openFiles(files);
+            if (isDir) {
+                VDirectory *dir = g_vnote->getInternalDirectory(files[0]);
+                if (dir) {
+                    g_mainWin->locateDirectory(dir);
+                } else {
+                    // External directory.
+                    g_mainWin->showExplorerPanel(true);
+                    g_mainWin->getExplorer()->setRootDirectory(files[0]);
+                }
+            } else {
+                focusWindow();
+                g_mainWin->openFiles(files);
+            }
         }
 
         p_event->acceptProposedAction();

src/vexplorer.cpp

@@ -197,7 +197,7 @@ void VExplorer::setupUI()
 
                     // If there is no directory entry currently, new one using the parent dir.
                     if (m_index == -1 || m_entries.isEmpty()) {
-                        setAsRootDirectory(VUtils::basePathFromPath(files[0]));
+                        setRootDirectory(VUtils::basePathFromPath(files[0]));
                     }
 
                     openFiles(files, g_config->getNoteOpenMode());
@@ -460,7 +460,7 @@ void VExplorer::handleContextMenuRequested(QPoint p_pos)
         setRootAct->setToolTip(tr("Set current folder as the root directory to explore"));
         connect(setRootAct, &QAction::triggered,
                 this, [this, filePath]() {
-                    setAsRootDirectory(filePath);
+                    setRootDirectory(filePath);
                 });
         menu.addAction(setRootAct);
 
@@ -757,12 +757,14 @@ void VExplorer::renameFile(const QString &p_filePath)
     }
 }
 
-void VExplorer::setAsRootDirectory(const QString &p_path)
+void VExplorer::setRootDirectory(const QString &p_path)
 {
     if (p_path.isEmpty()) {
         return;
     }
 
+    init();
+
     qDebug() << "set new root directory" << p_path;
 
     int idx = addEntry(p_path);

src/vexplorer.h

@@ -21,6 +21,8 @@ class VExplorer : public QWidget
 public:
     explicit VExplorer(QWidget *p_parent = nullptr);
 
+    void setRootDirectory(const QString &p_path);
+
 protected:
     void showEvent(QShowEvent *p_event) Q_DECL_OVERRIDE;
 
@@ -67,8 +69,6 @@ private:
 
     void renameFile(const QString &p_filePath);
 
-    void setAsRootDirectory(const QString &p_path);
-
     bool m_initialized;
 
     bool m_uiInitialized;

src/vmainwindow.cpp

@@ -68,7 +68,13 @@ extern QFile g_logFile;
 
 #define COLOR_PIXMAP_ICON_SIZE 64
 
-#define NAVI_BOX_NOTEBOOKS_IDX 0
+enum NaviBoxIndex
+{
+    NotebookPanel = 0,
+    HistoryList,
+    Explorer,
+    TagExplorer
+};
 
 
 VMainWindow::VMainWindow(VSingleInstanceGuard *p_guard, QWidget *p_parent)
@@ -3291,7 +3297,13 @@ void VMainWindow::kickOffStartUpTimer(const QStringList &p_files)
 void VMainWindow::showNotebookPanel()
 {
     changePanelView(PanelViewState::VerticalMode);
-    m_naviBox->setCurrentIndex(NAVI_BOX_NOTEBOOKS_IDX, false);
+    m_naviBox->setCurrentIndex(NaviBoxIndex::NotebookPanel, false);
+}
+
+void VMainWindow::showExplorerPanel(bool p_focus)
+{
+    changePanelView(PanelViewState::VerticalMode);
+    m_naviBox->setCurrentIndex(NaviBoxIndex::Explorer, p_focus);
 }
 
 void VMainWindow::stayOnTop(bool p_enabled)

src/vmainwindow.h

@@ -124,6 +124,10 @@ public:
 
     void focusEditArea() const;
 
+    void showExplorerPanel(bool p_focus = false);
+
+    VExplorer *getExplorer() const;
+
 signals:
     // Emit when editor related configurations were changed by user.
     void editorConfigUpdated();
@@ -522,4 +526,9 @@ inline VNotebookSelector *VMainWindow::getNotebookSelector() const
 {
     return m_notebookSelector;
 }
+
+inline VExplorer *VMainWindow::getExplorer() const
+{
+    return m_explorer;
+}
 #endif // VMAINWINDOW_H