cloudbrowser: added show file info action.

bin/cloudbrowser/qml/ItemPage.qml

@@ -13,6 +13,11 @@ Kirigami.ScrollablePage {
   anchors.fill: parent
   supportsRefreshing: true
 
+  onIsCurrentPageChanged: {
+    if (isCurrentPage)
+      root.selected_item = list_view.currentItem ? list_view.currentItem.item : null;
+  }
+
   onRefreshingChanged: {
     if (refreshing) {
       list.update(cloud, item);
@@ -114,14 +119,102 @@ Kirigami.ScrollablePage {
       visible: list_view.currentItem && list_view.currentItem.item.type !== "directory" &&
                item.supports("download")
       iconName: "document-save"
-      text: "Download " + (list_view.currentItem ? list_view.currentItem.item.filename : "")
+      text: "Download"
       onTriggered: {
         download_dialog.filename = list_view.currentItem.item.filename;
         download_dialog.open();
       }
+    },
+    Kirigami.Action {
+      visible: list_view.currentItem
+      iconName: "help-about"
+      text: "File information"
+      onTriggered: {
+        file_info_sheet.open();
+      }
     }
   ]
 
+  Kirigami.OverlaySheet {
+    id: file_info_sheet
+    Item {
+      implicitWidth: Math.min(page.width * 0.8, 400)
+      implicitHeight: childrenRect.height - 50
+      Text {
+        id: file_name
+        width: parent.width
+        font.pointSize: 18
+        padding: 10
+        text: root.selected_item ? root.selected_item.filename : ""
+        elide: Text.ElideRight
+        wrapMode: Text.Wrap
+      }
+      Column {
+        anchors.top: file_name.bottom
+        width: parent.implicitWidth * 0.8
+        anchors.horizontalCenter: parent.horizontalCenter
+        Rectangle {
+          width: parent.width
+          height: childrenRect.height
+          border.width: 1
+          anchors.leftMargin: 10
+          Column {
+            width: parent.width
+            Item {
+              visible: root.selected_item ? root.selected_item.size !== -1 : ""
+              anchors.left: parent.left
+              anchors.right: parent.right
+              anchors.margins: 10
+              height: 50
+              Text {
+                anchors.verticalCenter: parent.verticalCenter
+                anchors.left: parent.left
+                font.pointSize: 12
+                text: "size"
+              }
+              Text {
+                function show_size(size) {
+                  if (size < 1024)
+                    return size + " B";
+                  else if (size < 1024 * 1024)
+                    return (size / 1024).toFixed(2) + " KB";
+                  else if (size < 1024 * 1024 * 1024)
+                    return (size / (1024 * 1024)).toFixed(2) + " MB";
+                  else
+                    return (size / (1024 * 1024 * 1024)).toFixed(2) + " GB";
+                }
+
+                font.pointSize: 16
+                text: root.selected_item ? show_size(root.selected_item.size) : ""
+                anchors.verticalCenter: parent.verticalCenter
+                anchors.right: parent.right
+              }
+            }
+            Item {
+              visible: root.selected_item ? root.selected_item.timestamp !== "" : false
+              anchors.left: parent.left
+              anchors.right: parent.right
+              anchors.margins: 10
+              height: 50
+              Text {
+                anchors.verticalCenter: parent.verticalCenter
+                anchors.left: parent.left
+                font.pointSize: 12
+                text: "last modified"
+              }
+              Text {
+                font.pointSize: 16
+                text: root.selected_item ? root.selected_item.timestamp : ""
+                anchors.verticalCenter: parent.verticalCenter
+                anchors.right: parent.right
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+
   Kirigami.OverlaySheet {
     id: create_directory_sheet
     ColumnLayout {
@@ -221,6 +314,7 @@ Kirigami.ScrollablePage {
     id: list_view
     model: list.list
     currentIndex: -1
+    onCurrentItemChanged: root.selected_item = currentItem.item
     onCurrentIndexChanged: currentEdit = -1
     footerPositioning: ListView.OverlayFooter
     footer: Kirigami.ItemViewHeader {

bin/cloudbrowser/qml/main.qml

@@ -16,6 +16,7 @@ Kirigami.ApplicationWindow {
   property real last_volume: 1
   property int player_count: 0
   property int footer_height: ad_loaded && ad_visible ? 50 : 0
+  property CloudItem selected_item
 
   id: root
   width: Math.min(800, screen.desktopAvailableWidth)
@@ -188,6 +189,9 @@ Kirigami.ApplicationWindow {
     id: contextDrawer
     height: parent.height - footer_height
     handle.anchors.bottomMargin: footer_height
+    title: selected_item ?
+             selected_item.filename :
+             "Actions"
   }
   pageStack.initialPage: mainPageComponent
   pageStack.interactive: !visible_player

bin/cloudbrowser/src/CloudItem.cpp

@@ -2,6 +2,8 @@
 
 #include "Request/ListDirectory.h"
 
+#include <QDateTime>
+
 #undef CreateDirectory
 
 using namespace cloudstorage;
@@ -11,6 +13,24 @@ CloudItem::CloudItem(const Provider& p, IItem::Pointer item, QObject* parent)
 
 QString CloudItem::filename() const { return item_->filename().c_str(); }
 
+qint64 CloudItem::size() const {
+  if (item_->size() == IItem::UnknownSize)
+    return -1;
+  else
+    return static_cast<qint64>(item_->size());
+}
+
+QString CloudItem::timestamp() const {
+  if (item_->timestamp() == IItem::UnknownTimeStamp)
+    return "";
+  else {
+    auto timestamp = std::chrono::system_clock::to_time_t(item_->timestamp());
+    QDateTime date;
+    date.setTime_t(timestamp);
+    return date.toString(Qt::SystemLocaleShortDate);
+  }
+}
+
 QString CloudItem::type() const {
   switch (item_->type()) {
     case IItem::FileType::Unknown:

bin/cloudbrowser/src/CloudItem.h

@@ -23,7 +23,8 @@ struct Provider {
 class CloudItem : public QObject {
  public:
   Q_PROPERTY(QString filename READ filename CONSTANT)
-  Q_PROPERTY(uint64_t size READ size CONSTANT)
+  Q_PROPERTY(qint64 size READ size CONSTANT)
+  Q_PROPERTY(QString timestamp READ timestamp CONSTANT)
   Q_PROPERTY(QString type READ type CONSTANT)
 
   CloudItem(const Provider&, cloudstorage::IItem::Pointer,
@@ -32,7 +33,8 @@ class CloudItem : public QObject {
   cloudstorage::IItem::Pointer item() const { return item_; }
   const Provider& provider() const { return provider_; }
   QString filename() const;
-  uint64_t size() const { return item_->size(); }
+  qint64 size() const;
+  QString timestamp() const;
   QString type() const;
   Q_INVOKABLE bool supports(QString operation) const;
   ListDirectoryCacheKey key() const;

src/Utility/Item.cpp

@@ -44,7 +44,7 @@ namespace cloudstorage {
 
 constexpr size_t IItem::UnknownSize;
 const IItem::TimeStamp IItem::UnknownTimeStamp =
-    std::chrono::system_clock::time_point::min();
+    std::chrono::system_clock::from_time_t(0);
 
 namespace {
 bool find(const std::string* array, int length, std::string str) {
@@ -90,8 +90,8 @@ std::string Item::toString() const {
   json["filename"] = filename();
   json["type"] = static_cast<int>(type());
   json["id"] = id();
-  json["timestamp"] =
-      static_cast<Json::UInt64>(timestamp().time_since_epoch().count());
+  json["timestamp"] = static_cast<Json::UInt64>(
+      std::chrono::system_clock::to_time_t(timestamp()));
   json["size"] = static_cast<Json::Int64>(size());
   if (!mime_type().empty()) json["mime_type"] = mime_type();
   if (!parents().empty()) {
@@ -110,8 +110,7 @@ IItem::Pointer IItem::fromString(const std::string& str) {
   auto item = util::make_unique<Item>(
       json["filename"].asString(), json["id"].asString(),
       json["size"].asInt64(),
-      std::chrono::system_clock::time_point(
-          std::chrono::seconds(json["timestamp"].asUInt64())),
+      std::chrono::system_clock::from_time_t(json["timestamp"].asUInt64()),
       static_cast<IItem::FileType>(json["type"].asInt()));
   item->set_thumbnail_url(json["thumbnail_url"].asString());
   item->set_hidden(json["hidden"].asBool());