From ae6d413cd4a50464d24dceecfa66f0f5b4955fd4 Mon Sep 17 00:00:00 2001
From: Don Gagne <dongagne@outlook.com>
Date: Sun, 5 Apr 2020 10:08:55 -0700
Subject: [PATCH] Mobile QGCFileDialog: Show dir location

---
 src/QmlControls/QGCFileDialog.qml          | 17 ++++++++++++++---
 src/QmlControls/QGCFileDialogController.cc | 19 +++++++++++++++++++
 src/QmlControls/QGCFileDialogController.h  |  5 +++++
 3 files changed, 38 insertions(+), 3 deletions(-)

diff --git a/src/QmlControls/QGCFileDialog.qml b/src/QmlControls/QGCFileDialog.qml
index 06fe48e..21932d7 100644
--- a/src/QmlControls/QGCFileDialog.qml
+++ b/src/QmlControls/QGCFileDialog.qml
@@ -26,11 +26,20 @@ Item {
     property real   _margins:       ScreenTools.defaultFontPixelHeight / 2
     property bool   _mobileDlg:     QGroundControl.corePlugin.options.useMobileFileDialog
     property var    _rgExtensions
+    property string _mobileShortPath
 
-    Component.onCompleted: setupFileExtensions()
+    Component.onCompleted: {
+        setupFileExtensions()
+        _updateMobileShortPath()
+    }
+
+    onFileExtensionChanged:     setupFileExtensions()
+    onFileExtension2Changed:    setupFileExtensions()
+    onFolderChanged:            _updateMobileShortPath()
 
-    onFileExtensionChanged: setupFileExtensions()
-    onFileExtension2Changed: setupFileExtensions()
+    function _updateMobileShortPath() {
+        _mobileShortPath = controller.fullFolderPathToShortMobilePath(folder);
+    }
 
     function setupFileExtensions() {
         if (fileExtension2 == "") {
@@ -105,6 +114,8 @@ Item {
                     anchors.right:  parent.right
                     spacing:        ScreenTools.defaultFontPixelHeight / 2
 
+                    QGCLabel { text: qsTr("Path: %1").arg(_mobileShortPath) }
+
                     Repeater {
                         id:     fileRepeater
                         model:  controller.getFiles(folder, _rgExtensions)
diff --git a/src/QmlControls/QGCFileDialogController.cc b/src/QmlControls/QGCFileDialogController.cc
index 0b02720..a353e31 100644
--- a/src/QmlControls/QGCFileDialogController.cc
+++ b/src/QmlControls/QGCFileDialogController.cc
@@ -9,6 +9,9 @@
 
 
 #include "QGCFileDialogController.h"
+#include "QGCApplication.h"
+#include "SettingsManager.h"
+#include "AppSettings.h"
 
 #include <QStandardPaths>
 #include <QDebug>
@@ -72,3 +75,19 @@ void QGCFileDialogController::deleteFile(const QString& filename)
 {
     QFile::remove(filename);
 }
+
+QString QGCFileDialogController::fullFolderPathToShortMobilePath(const QString& fullFolderPath)
+{
+#ifdef __mobile__
+    QString defaultSavePath = qgcApp()->toolbox()->settingsManager()->appSettings()->savePath()->rawValueString();
+    if (fullFolderPath.startsWith(defaultSavePath)) {
+        int lastDirSepIndex = fullFolderPath.lastIndexOf(QStringLiteral("/"));
+        return qgcApp()->applicationName() + QStringLiteral("/") + fullFolderPath.right(fullFolderPath.length() - lastDirSepIndex);
+    } else {
+        return fullFolderPath;
+    }
+#else
+    qWarning() << "QGCFileDialogController::fullFolderPathToShortMobilePath should only be used in mobile builds";
+    return fullFolderPath;
+#endif
+}
diff --git a/src/QmlControls/QGCFileDialogController.h b/src/QmlControls/QGCFileDialogController.h
index 4e80503..01f6517 100644
--- a/src/QmlControls/QGCFileDialogController.h
+++ b/src/QmlControls/QGCFileDialogController.h
@@ -39,6 +39,11 @@ public:
     Q_INVOKABLE void deleteFile(const QString& filename);
 
     Q_INVOKABLE QString urlToLocalFile(QUrl url) { return url.toLocalFile(); }
+
+    /// Important: Should only be used in mobile builds where default save location cannot be changed.
+    /// Returns the standard QGC location portion of a fully qualified folder path.
+    /// Example: "/Users/Don/Document/QGroundControl/Missions" returns "QGroundControl/Missions"
+    Q_INVOKABLE QString fullFolderPathToShortMobilePath(const QString& fullFolderPath);
 };
 
 #endif