Changed FTP to tree view

Also added selection from tree view for downloading

src/uas/QGCUASFileManager.cc

@@ -99,11 +99,6 @@ quint32 QGCUASFileManager::crc32(Request* request, unsigned state)
     return state;
 }
 
-void QGCUASFileManager::nothingMessage()
-{
-    // FIXME: Connect ui correctly
-}
-
 /// @brief Respond to the Ack associated with the Open command with the next Read command.
 void QGCUASFileManager::_openAckResponse(Request* openAck)
 {
@@ -220,17 +215,11 @@ void QGCUASFileManager::_listAckResponse(Request* listAck)
             _emitErrorMessage(tr("Missing NULL termination in list entry"));
             return;
         }
-        
-        // Returned names are prepended with D for directory, F for file, U for unknown
 
-        QString s(ptr + 1);
-        if (*ptr == 'D') {
-            s.append('/');
-        }
-        
+        // Returned names are prepended with D for directory, F for file, U for unknown
         if (*ptr == 'F' || *ptr == 'D') {
             // put it in the view
-            _emitStatusMessage(s);
+            _emitStatusMessage(ptr);
         }
     
         // account for the name + NUL
@@ -243,6 +232,7 @@ void QGCUASFileManager::_listAckResponse(Request* listAck)
         // Directory is empty, we're done
         Q_ASSERT(listAck->hdr.opcode == kRspAck);
         _currentOperation = kCOIdle;
+        emit listComplete();
     } else {
         // Possibly more entries to come, need to keep trying till we get EOF
         _currentOperation = kCOList;
@@ -307,6 +297,7 @@ void QGCUASFileManager::receiveMessage(LinkInterface* link, mavlink_message_t me
         
         if (previousOperation == kCOList && errorCode == kErrEOF) {
             // This is not an error, just the end of the read loop
+            emit listComplete();
             return;
         } else if (previousOperation == kCORead && errorCode == kErrEOF) {
             // This is not an error, just the end of the read loop

src/uas/QGCUASFileManager.h

@@ -43,11 +43,11 @@ public:
 signals:
     void statusMessage(const QString& msg);
     void resetStatusMessages();
-    void errorMessage(const QString& ms);
+    void errorMessage(const QString& msg);
+    void listComplete(void);
 
 public slots:
     void receiveMessage(LinkInterface* link, mavlink_message_t message);
-    void nothingMessage();
     void listDirectory(const QString& dirPath);
     void downloadPath(const QString& from, const QDir& downloadDir);
 

src/ui/QGCUASFileView.cc

+/*=====================================================================
+ 
+ QGroundControl Open Source Ground Control Station
+ 
+ (c) 2009 - 2014 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
+ 
+ This file is part of the QGROUNDCONTROL project
+ 
+ QGROUNDCONTROL is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+ 
+ QGROUNDCONTROL is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ 
+ You should have received a copy of the GNU General Public License
+ along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
+ 
+ ======================================================================*/
+
 #include "QGCUASFileView.h"
 #include "uas/QGCUASFileManager.h"
-#include "ui_QGCUASFileView.h"
 
 #include <QFileDialog>
 #include <QDir>
+#include <QMessageBox>
 
 QGCUASFileView::QGCUASFileView(QWidget *parent, QGCUASFileManager *manager) :
     QWidget(parent),
-    _manager(manager),
-    ui(new Ui::QGCUASFileView)
+    _manager(manager)
 {
-    ui->setupUi(this);
+    _ui.setupUi(this);
 
-    connect(ui->testButton, SIGNAL(clicked()), _manager, SLOT(nothingMessage()));
-    connect(ui->listFilesButton, SIGNAL(clicked()), this, SLOT(listFiles()));
-    connect(ui->downloadButton, SIGNAL(clicked()), this, SLOT(downloadFiles()));
+    bool success = connect(_ui.listFilesButton, SIGNAL(clicked()), this, SLOT(_refreshTree()));
+    Q_ASSERT(success);
+    success = connect(_ui.downloadButton, SIGNAL(clicked()), this, SLOT(_downloadFiles()));
+    Q_ASSERT(success);
+    success = connect(_ui.treeWidget, SIGNAL(currentItemChanged(QTreeWidgetItem*, QTreeWidgetItem*)), this, SLOT(_currentItemChanged(QTreeWidgetItem*, QTreeWidgetItem*)));
+    Q_ASSERT(success);
+    Q_UNUSED(success);
+}
 
-    connect(_manager, SIGNAL(statusMessage(QString)), ui->messageArea, SLOT(appendPlainText(QString)));
-    connect(_manager, SIGNAL(errorMessage(QString)), ui->messageArea, SLOT(appendPlainText(QString)));
-    connect(_manager, SIGNAL(resetStatusMessages()), ui->messageArea, SLOT(clear()));
+void QGCUASFileView::_downloadFiles(void)
+{
+    QString dir = QFileDialog::getExistingDirectory(this, tr("Download Directory"),
+                                                     QDir::homePath(),
+                                                     QFileDialog::ShowDirsOnly
+                                                     | QFileDialog::DontResolveSymlinks);
+    // And now download to this location
+    QString path;
+    QTreeWidgetItem* item = _ui.treeWidget->currentItem();
+    if (item && item->type() == _typeFile) {
+        do {
+            path.prepend("/" + item->text(0));
+            item = item->parent();
+        } while (item);
+        qDebug() << "Download: " << path;
+        
+        bool success = connect(_manager, SIGNAL(statusMessage(QString)), this, SLOT(_downloadStatusMessage(QString)));
+        Q_ASSERT(success);
+        success = connect(_manager, SIGNAL(errorMessage(QString)), this, SLOT(_downloadStatusMessage(QString)));
+        Q_ASSERT(success);
+        Q_UNUSED(success);
+        _manager->downloadPath(path, QDir(dir));
+    }
 }
 
-QGCUASFileView::~QGCUASFileView()
+void QGCUASFileView::_refreshTree(void)
 {
-    delete ui;
+    QTreeWidgetItem* item;
+    
+    for (int i=_ui.treeWidget->invisibleRootItem()->childCount(); i>=0; i--) {
+        item = _ui.treeWidget->takeTopLevelItem(i);
+        delete item;
+    }
+
+    _walkIndexStack.clear();
+    _walkItemStack.clear();
+    _walkIndexStack.append(0);
+    _walkItemStack.append(_ui.treeWidget->invisibleRootItem());
+    
+    bool success = connect(_manager, SIGNAL(statusMessage(QString)), this, SLOT(_treeStatusMessage(QString)));
+    Q_ASSERT(success);
+    success = connect(_manager, SIGNAL(errorMessage(QString)), this, SLOT(_treeErrorMessage(QString)));
+    Q_ASSERT(success);
+    success = connect(_manager, SIGNAL(listComplete(void)), this, SLOT(_listComplete(void)));
+    Q_ASSERT(success);
+    Q_UNUSED(success);
+
+    qDebug() << "List: /";
+    _manager->listDirectory("/");
 }
 
-void QGCUASFileView::listFiles()
+void QGCUASFileView::_treeStatusMessage(const QString& msg)
 {
-    _manager->listDirectory(ui->pathLineEdit->text());
+    int type;
+    if (msg.startsWith("F")) {
+        type = _typeFile;
+    } else if (msg.startsWith("D")) {
+        type = _typeDir;
+        if (msg == "D." || msg == "D..") {
+            return;
+        }
+    } else {
+        Q_ASSERT(false);
+    }
+
+    QTreeWidgetItem* item;
+    if (_walkItemStack.count() == 0) {
+        item = new QTreeWidgetItem(_ui.treeWidget, type);
+    } else {
+        item = new QTreeWidgetItem(_walkItemStack.last(), type);
+    }
+    Q_CHECK_PTR(item);
+    
+    item->setText(0, msg.right(msg.size() - 1));
 }
 
-void QGCUASFileView::downloadFiles()
+void QGCUASFileView::_treeErrorMessage(const QString& msg)
 {
-    QString dir = QFileDialog::getExistingDirectory(this, tr("Download Directory"),
-                                                     QDir::homePath(),
-                                                     QFileDialog::ShowDirsOnly
-                                                     | QFileDialog::DontResolveSymlinks);
-    // And now download to this location
-    _manager->downloadPath(ui->pathLineEdit->text(), QDir(dir));
+    QTreeWidgetItem* item;
+    if (_walkItemStack.count() == 0) {
+        item = new QTreeWidgetItem(_ui.treeWidget, _typeError);
+    } else {
+        item = new QTreeWidgetItem(_walkItemStack.last(), _typeError);
+    }
+    Q_CHECK_PTR(item);
+    
+    item->setText(0, tr("Error: ") + msg);
+}
+
+void QGCUASFileView::_listComplete(void)
+{
+    // Walk the current items, traversing down into directories
+    
+Again:
+    int walkIndex = _walkIndexStack.last();
+    QTreeWidgetItem* parentItem = _walkItemStack.last();
+    QTreeWidgetItem* childItem = parentItem->child(walkIndex);
+
+    // Loop until we hit a directory
+    while (childItem && childItem->type() != _typeDir) {
+        // Move to next index at current level
+        _walkIndexStack.last() = ++walkIndex;
+        childItem = parentItem->child(walkIndex);
+    }
+    
+    if (childItem) {
+        // Process this item
+        QString text = childItem->text(0);
+        
+        // Move to the next item for processing at this level
+        _walkIndexStack.last() = ++walkIndex;
+        
+        // Push this new directory on the stack
+        _walkItemStack.append(childItem);
+        _walkIndexStack.append(0);
+        
+        // Ask for the directory list
+        QString dir;
+        for (int i=1; i<_walkItemStack.count(); i++) {
+            QTreeWidgetItem* item = _walkItemStack[i];
+            dir.append("/" + item->text(0));
+        }
+        qDebug() << "List:" << dir;
+        _manager->listDirectory(dir);
+    } else {
+        // We have run out of items at the this level, pop the stack and keep going at that level
+        _walkIndexStack.removeLast();
+        _walkItemStack.removeLast();
+        if (_walkIndexStack.count() != 0) {
+            goto Again;
+        } else {
+            disconnect(_manager, SIGNAL(statusMessage(QString)), this, SLOT(_treeStatusMessage(QString)));
+            disconnect(_manager, SIGNAL(errorMessage(QString)), this, SLOT(_treeErrorMessage(QString)));
+            disconnect(_manager, SIGNAL(listComplete(void)), this, SLOT(_listComplete(void)));
+        }
+    }
+}
+
+void QGCUASFileView::_downloadStatusMessage(const QString& msg)
+{
+    disconnect(_manager, SIGNAL(statusMessage(QString)), this, SLOT(_downloadStatusMessage(QString)));
+    disconnect(_manager, SIGNAL(errorMessage(QString)), this, SLOT(_downloadStatusMessage(QString)));
+    
+    QMessageBox msgBox;
+    msgBox.setWindowModality(Qt::ApplicationModal);
+    msgBox.setText(msg);
+    msgBox.exec();
+}
+
+void QGCUASFileView::_currentItemChanged(QTreeWidgetItem* current, QTreeWidgetItem* previous)
+{
+    Q_UNUSED(previous);
+    _ui.downloadButton->setEnabled(current->type() == _typeFile);
 }

src/ui/QGCUASFileView.h

+/*=====================================================================
+ 
+ QGroundControl Open Source Ground Control Station
+ 
+ (c) 2009 - 2014 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
+ 
+ This file is part of the QGROUNDCONTROL project
+ 
+ QGROUNDCONTROL is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+ 
+ QGROUNDCONTROL is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ 
+ You should have received a copy of the GNU General Public License
+ along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
+ 
+ ======================================================================*/
+
 #ifndef QGCUASFILEVIEW_H
 #define QGCUASFILEVIEW_H
 
 #include <QWidget>
-#include "uas/QGCUASFileManager.h"
+#include <QTreeWidgetItem>
 
-namespace Ui {
-class QGCUASFileView;
-}
+#include "uas/QGCUASFileManager.h"
+#include "ui_QGCUASFileView.h"
 
 class QGCUASFileView : public QWidget
 {
@@ -14,17 +36,27 @@ class QGCUASFileView : public QWidget
 
 public:
     explicit QGCUASFileView(QWidget *parent, QGCUASFileManager *manager);
-    ~QGCUASFileView();
-
-public slots:
-    void listFiles();
-    void downloadFiles();
 
 protected:
     QGCUASFileManager* _manager;
+    
+private slots:
+    void _refreshTree(void);
+    void _downloadFiles(void);
+    void _treeStatusMessage(const QString& msg);
+    void _treeErrorMessage(const QString& msg);
+    void _listComplete(void);
+    void _downloadStatusMessage(const QString& msg);
+    void _currentItemChanged(QTreeWidgetItem* current, QTreeWidgetItem* previous);
 
 private:
-    Ui::QGCUASFileView *ui;
+    static const int        _typeFile = QTreeWidgetItem::UserType + 1;
+    static const int        _typeDir = QTreeWidgetItem::UserType + 2;
+    static const int        _typeError = QTreeWidgetItem::UserType + 3;
+    
+    QList<int>              _walkIndexStack;
+    QList<QTreeWidgetItem*> _walkItemStack;
+    Ui::QGCUASFileView      _ui;
 };
 
 #endif // QGCUASFILEVIEW_H

src/ui/QGCUASFileView.ui

@@ -14,7 +14,7 @@
    <string>Form</string>
   </property>
   <layout class="QGridLayout" name="gridLayout">
-   <item row="3" column="1">
+   <item row="1" column="1">
     <widget class="QPushButton" name="listFilesButton">
      <property name="text">
       <string>List Files</string>
@@ -22,10 +22,10 @@
     </widget>
    </item>
    <item row="0" column="0" colspan="3">
-    <widget class="QPlainTextEdit" name="messageArea"/>
-   </item>
-   <item row="1" column="0" colspan="3">
     <widget class="QTreeWidget" name="treeWidget">
+     <property name="headerHidden">
+      <bool>true</bool>
+     </property>
      <column>
       <property name="text">
        <string notr="true">1</string>
@@ -33,30 +33,16 @@
      </column>
     </widget>
    </item>
-   <item row="3" column="0">
-    <widget class="QPushButton" name="testButton">
-     <property name="text">
-      <string>Null Message</string>
-     </property>
-    </widget>
-   </item>
-   <item row="3" column="2">
+   <item row="1" column="2">
     <widget class="QPushButton" name="downloadButton">
-     <property name="text">
-      <string>Download File</string>
+     <property name="enabled">
+      <bool>false</bool>
      </property>
-    </widget>
-   </item>
-   <item row="2" column="0">
-    <widget class="QLabel" name="label">
      <property name="text">
-      <string>Path:</string>
+      <string>Download File</string>
      </property>
     </widget>
    </item>
-   <item row="2" column="1" colspan="2">
-    <widget class="QLineEdit" name="pathLineEdit"/>
-   </item>
   </layout>
  </widget>
  <resources/>