From 4200f0ca59815dd046b1bc5e44b50f460b4c3de0 Mon Sep 17 00:00:00 2001
From: Benau <Benau@users.noreply.github.com>
Date: Thu, 8 Aug 2019 16:38:53 +0800
Subject: [PATCH] Allow install full game assets from stk server

---
 data/gui/screens/options_general.stkgui       |   5 +
 data/stk_config.xml                           |   2 +-
 sources.cmake                                 |   2 +-
 src/io/file_manager.cpp                       |   4 +-
 .../dialogs/download_assets.cpp               | 264 ++++++++++++++++++
 .../dialogs/download_assets.hpp               |  58 ++++
 src/states_screens/download_assets.cpp        | 228 ---------------
 src/states_screens/download_assets.hpp        |  85 ------
 .../options/options_screen_general.cpp        |  44 +++
 src/utils/download_assets_size.hpp            |  15 +-
 src/utils/extract_mobile_assets.cpp           |  23 +-
 src/utils/extract_mobile_assets.hpp           |   2 +
 12 files changed, 401 insertions(+), 331 deletions(-)
 create mode 100644 src/states_screens/dialogs/download_assets.cpp
 create mode 100644 src/states_screens/dialogs/download_assets.hpp
 delete mode 100644 src/states_screens/download_assets.cpp
 delete mode 100644 src/states_screens/download_assets.hpp

diff --git a/data/gui/screens/options_general.stkgui b/data/gui/screens/options_general.stkgui
index d5d859c43..6d5a8a68e 100644
--- a/data/gui/screens/options_general.stkgui
+++ b/data/gui/screens/options_general.stkgui
@@ -86,6 +86,11 @@
                    </div>
 
                    <spacer width="5" height="4%"/>
+                   <div width="100%" height="fit" layout="horizontal-row" >
+                       <spacer width="1%" height="100%"/>
+                       <button id="assets_settings" raw_text="Android specific options"/>
+                   </div>
+                   <spacer width="5" height="4%"/>
                </box>
             </div>
         </div>
diff --git a/data/stk_config.xml b/data/stk_config.xml
index e39fd34fa..ce4dcaae6 100644
--- a/data/stk_config.xml
+++ b/data/stk_config.xml
@@ -178,7 +178,7 @@
 
   <urls donate="https://supertuxkart.net/Donate"
         password-reset="https://online.supertuxkart.net/password-reset.php"
-        assets-download="https://downloads.sourceforge.net/project/supertuxkart/stk-assets-mobile/"/>
+        assets-download="https://github.com/supertuxkart/stk-assets-mobile/releases/download/"/>
 
   <!-- Skidmark data: maximum number of skid marks, and
        time for skidmarks to fade out. Maximum number will over
diff --git a/sources.cmake b/sources.cmake
index d4f28ae4d..ba4868d71 100644
--- a/sources.cmake
+++ b/sources.cmake
@@ -1,5 +1,5 @@
 # Modify this file to change the last-modified date when you add/remove a file.
-# This will then trigger a new cmake run automatically.
+# This will then trigger a new cmake run automatically. 
 file(GLOB_RECURSE STK_HEADERS RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "src/*.hpp")
 file(GLOB_RECURSE STK_SOURCES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "src/*.cpp")
 file(GLOB_RECURSE STK_SHADERS RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "data/shaders/*")
diff --git a/src/io/file_manager.cpp b/src/io/file_manager.cpp
index 5a448470a..5097835dd 100644
--- a/src/io/file_manager.cpp
+++ b/src/io/file_manager.cpp
@@ -215,9 +215,9 @@ FileManager::FileManager()
 #ifdef MOBILE_STK
     m_stk_assets_download_dir = getenv("HOME");
 #ifdef IOS_STK
-    m_stk_assets_download_dir += "/Library/Application Support/SuperTuxKart/stk-assets-full/";
+    m_stk_assets_download_dir += "/Library/Application Support/SuperTuxKart/stk-assets/";
 #elif defined (ANDROID)
-    m_stk_assets_download_dir += "/stk-assets-full/";
+    m_stk_assets_download_dir += "/stk-assets/";
 #endif
 
 #else
diff --git a/src/states_screens/dialogs/download_assets.cpp b/src/states_screens/dialogs/download_assets.cpp
new file mode 100644
index 000000000..199fb9e76
--- /dev/null
+++ b/src/states_screens/dialogs/download_assets.cpp
@@ -0,0 +1,264 @@
+//  SuperTuxKart - a fun racing game with go-kart
+//  Copyright (C) 2019 SuperTuxKart-Team
+//
+//  This program 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.
+//
+//  This program 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 this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+#ifdef MOBILE_STK
+
+#include "states_screens/dialogs/download_assets.hpp"
+
+#include "config/user_config.hpp"
+#include "states_screens/dialogs/message_dialog.hpp"
+#include "io/file_manager.hpp"
+#include "online/http_request.hpp"
+#include "states_screens/state_manager.hpp"
+#include "utils/extract_mobile_assets.hpp"
+#include "utils/download_assets_size.hpp"
+#include "utils/string_utils.hpp"
+#include "utils/translation.hpp"
+
+using namespace GUIEngine;
+using namespace Online;
+using namespace irr::gui;
+
+// ----------------------------------------------------------------------------
+class DownloadAssetsRequest : public HTTPRequest
+{
+private:
+    bool m_extraction_error;
+    virtual void afterOperation()
+    {
+        Online::HTTPRequest::afterOperation();
+        if (isCancelled())
+            return;
+        m_extraction_error =
+            !ExtractMobileAssets::extract(getFileName(),
+            file_manager->getSTKAssetsDownloadDir());
+    }
+public:
+    DownloadAssetsRequest()
+    : HTTPRequest("stk-assets.zip", /*manage mem*/false, /*priority*/5)
+    {
+        m_extraction_error = true;
+        std::string download_url = stk_config->m_assets_download_url;
+        download_url += STK_VERSION;
+        download_url += "/stk-assets.zip";
+        setURL(download_url);
+        setDownloadAssetsRequest(true);
+    }
+    ~DownloadAssetsRequest()
+    {
+        if (isCancelled())
+        {
+            const std::string& zip = getFileName();
+            const std::string zip_part = zip + ".part";
+            if (file_manager->fileExists(zip))
+                file_manager->removeFile(zip);
+            if (file_manager->fileExists(zip_part))
+                file_manager->removeFile(zip_part);
+            file_manager->removeDirectory(
+                file_manager->getSTKAssetsDownloadDir());
+        }
+    }
+    bool hadError() const { return hadDownloadError() || m_extraction_error; }
+};   // DownloadAssetsRequest
+
+// ----------------------------------------------------------------------------
+/** Creates a modal dialog with given percentage of screen width and height
+*/
+DownloadAssets::DownloadAssets()
+              : ModalDialog(0.8f, 0.8f)
+{
+    m_download_request = NULL;
+
+    loadFromFile("addons_loading.stkgui");
+    m_install_button   = getWidget<IconButtonWidget> ("install" );
+    m_progress         = getWidget<ProgressBarWidget>("progress");
+
+    RibbonWidget* actions = getWidget<RibbonWidget>("actions");
+    actions->setFocusForPlayer(PLAYER_ID_GAME_MASTER);
+    actions->select("back", PLAYER_ID_GAME_MASTER);
+
+    if(m_progress)
+        m_progress->setVisible(false);
+
+    IconButtonWidget* icon = getWidget<IconButtonWidget>("icon");
+    icon->setImage(file_manager->getAsset(FileManager::GUI_ICON, "logo.png"),
+        IconButtonWidget::ICON_PATH_TYPE_ABSOLUTE);
+
+    core::stringw unit = "";
+    unsigned n = getDownloadAssetsSize();
+    float f = ((int)(n/1024.0f/1024.0f*10.0f+0.5f))/10.0f;
+    char s[32];
+    sprintf(s, "%.1f", f);
+    unit = _("%s MB", s);
+    // I18N: File size of game assets or addons downloading
+    core::stringw size = _("Size: %s", unit.c_str());
+    getWidget<LabelWidget>("size")->setText(size, false);
+
+    // I18N: In download assets dialog
+    core::stringw msg = _("SuperTuxKart will download full assets "
+        "(including all tracks, high quality textures and music) for better "
+        "gaming experience, this will use your mobile data if you don't have "
+        "a wifi connection.");
+    getWidget<BubbleWidget>("description")->setText(msg);
+}   // DownloadAssets
+
+// ----------------------------------------------------------------------------
+void DownloadAssets::beforeAddingWidgets()
+{
+    getWidget("uninstall")->setVisible(false);
+}   // beforeAddingWidgets
+
+// ----------------------------------------------------------------------------
+void DownloadAssets::init()
+{
+    getWidget("rating")->setVisible(false);
+}   // init
+
+// ----------------------------------------------------------------------------
+bool DownloadAssets::onEscapePressed()
+{
+    stopDownload();
+    ModalDialog::dismiss();
+    return true;
+}   // onEscapePressed
+
+// ----------------------------------------------------------------------------
+GUIEngine::EventPropagation DownloadAssets::processEvent(const std::string& event_source)
+{
+    GUIEngine::RibbonWidget* actions_ribbon =
+            getWidget<GUIEngine::RibbonWidget>("actions");
+
+    if (event_source == "actions")
+    {
+        const std::string& selection =
+            actions_ribbon->getSelectionIDString(PLAYER_ID_GAME_MASTER);
+        if (selection == "back")
+        {
+            stopDownload();
+            dismiss();
+            return GUIEngine::EVENT_BLOCK;
+        }
+        else if (selection == "install")
+        {
+            m_progress->setValue(0);
+            m_progress->setVisible(true);
+
+            actions_ribbon->setVisible(false);
+
+            startDownload();
+            return GUIEngine::EVENT_BLOCK;
+        }
+    }
+    return GUIEngine::EVENT_LET;
+}   // processEvent
+
+// ----------------------------------------------------------------------------
+void DownloadAssets::onUpdate(float delta)
+{
+    if (m_download_request)
+    {
+        float progress = m_download_request->getProgress();
+        // Last 1% for unzipping
+        m_progress->setValue(progress * 99.0f);
+        if (progress < 0)
+        {
+            // Avoid displaying '-100%' in case of an error.
+            m_progress->setVisible(false);
+            dismiss();
+            new MessageDialog(_("Sorry, downloading the add-on failed"));
+            return;
+        }
+        else if (m_download_request->isDone())
+        {
+            // No sense to update state text, since it all
+            // happens before the GUI is refrehsed.
+            doInstall();
+            return;
+        }
+    }   // if (m_progress->isVisible())
+}   // onUpdate
+
+// ----------------------------------------------------------------------------
+/** This function is called when the user click on 'Install', 'Uninstall', or
+ *  'Update'.
+ **/
+void DownloadAssets::startDownload()
+{
+    m_download_request = new DownloadAssetsRequest();
+    m_download_request->queue();
+}   // startDownload
+
+// ----------------------------------------------------------------------------
+/** This function is called when the user click on 'Back', 'Cancel' or press
+ *  escape.
+ **/
+void DownloadAssets::stopDownload()
+{
+    // Cancel a download only if we are installing/upgrading one
+    // (and not uninstalling an installed one):
+    if (m_download_request)
+    {
+        // In case of a cancel we can't free the memory, since the
+        // request manager thread is potentially working on this request. So
+        // in order to avoid a memory leak, we let the request manager
+        // free the data. This is thread safe since freeing the data is done
+        // when the request manager handles the result queue - and this is
+        // done by the main thread (i.e. this thread).
+        m_download_request->setManageMemory(true);
+        m_download_request->cancel();
+        m_download_request = NULL;
+    }
+}   // startDownload
+
+
+// ----------------------------------------------------------------------------
+/** Called when the asynchronous download of the addon finished.
+ */
+void DownloadAssets::doInstall()
+{
+    core::stringw msg;
+    if (m_download_request->hadError())
+    {
+        // Reset the download buttons so user can redownload if needed
+        // I18N: Shown when there is download error for assets download
+        // in the first run
+        msg = _("Failed to download assets, check your storage space or internet connection and try again later.");
+    }
+    delete m_download_request;
+    m_download_request = NULL;
+    if (!msg.empty())
+    {
+        getWidget<BubbleWidget>("description")->setText(msg);
+    }
+
+    if (!msg.empty())
+    {
+        m_progress->setVisible(false);
+
+        RibbonWidget* r = getWidget<RibbonWidget>("actions");
+        r->setVisible(true);
+
+        m_install_button->setLabel(_("Try again"));
+    }
+    else
+    {
+        dismiss();
+        ExtractMobileAssets::reinit();
+    }
+}   // doInstall
+
+#endif
diff --git a/src/states_screens/dialogs/download_assets.hpp b/src/states_screens/dialogs/download_assets.hpp
new file mode 100644
index 000000000..83e2c6912
--- /dev/null
+++ b/src/states_screens/dialogs/download_assets.hpp
@@ -0,0 +1,58 @@
+//  SuperTuxKart - a fun racing game with go-kart
+//  Copyright (C) 2019 SuperTuxKart-Team
+//
+//  This program 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.
+//
+//  This program 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 this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+#ifndef HEADER_DOWNLOAD_ASSETS_HPP
+#define HEADER_DOWNLOAD_ASSETS_HPP
+
+#ifdef MOBILE_STK
+
+#include "guiengine/widgets.hpp"
+#include "guiengine/modaldialog.hpp"
+#include "utils/cpp2011.hpp"
+
+class DownloadAssetsRequest;
+
+/**
+  * \ingroup states_screens
+  */
+class DownloadAssets : public GUIEngine::ModalDialog
+{
+private:
+    GUIEngine::ProgressBarWidget *m_progress;
+    GUIEngine::IconButtonWidget  *m_install_button;
+
+    void startDownload();
+    void stopDownload();
+    void doInstall();
+
+    /** A pointer to the download request, which gives access
+     *  to the progress of a download. */
+    DownloadAssetsRequest* m_download_request;
+
+public:
+    DownloadAssets();
+
+    virtual GUIEngine::EventPropagation processEvent(const std::string& event_source) OVERRIDE;
+    virtual void beforeAddingWidgets() OVERRIDE;
+    virtual void init() OVERRIDE;
+    void onUpdate(float delta) OVERRIDE;
+    virtual bool onEscapePressed() OVERRIDE;
+};   // DownloadAssets
+
+#endif
+
+#endif
diff --git a/src/states_screens/download_assets.cpp b/src/states_screens/download_assets.cpp
deleted file mode 100644
index 04455b953..000000000
--- a/src/states_screens/download_assets.cpp
+++ /dev/null
@@ -1,228 +0,0 @@
-//  SuperTuxKart - a fun racing game with go-kart
-//  Copyright (C) 2019 SuperTuxKart-Team
-//
-//  This program 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.
-//
-//  This program 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 this program; if not, write to the Free Software
-//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-
-#include "states_screens/download_assets.hpp"
-#include "addons/zip.hpp"
-#include "config/stk_config.hpp"
-#include "guiengine/message_queue.hpp"
-#include "guiengine/widgets/check_box_widget.hpp"
-#include "guiengine/widgets/icon_button_widget.hpp"
-#include "guiengine/widgets/progress_bar_widget.hpp"
-#include "guiengine/widgets/ribbon_widget.hpp"
-#include "io/file_manager.hpp"
-#include "online/http_request.hpp"
-#include "states_screens/state_manager.hpp"
-#include "utils/download_assets_size.hpp"
-#include "utils/string_utils.hpp"
-#include "utils/translation.hpp"
-#include "main_loop.hpp"
-
-#include <stdio.h>
-
-using namespace GUIEngine;
-
-// -----------------------------------------------------------------------------
-DownloadAssets::DownloadAssets() : GUIEngine::Screen("download_assets.stkgui")
-{
-}   // OnlineLanScreen
-
-// -----------------------------------------------------------------------------
-void DownloadAssets::beforeAddingWidget()
-{
-
-}   // beforeAddingWidget
-
-// -----------------------------------------------------------------------------
-void DownloadAssets::updateDownloadSize()
-{
-    m_progress->setValue(0);
-    core::stringw unit="";
-    unsigned n = getDownloadAssetsSize(m_all_tracks->getState(),
-        m_hd_textures->getState());
-    float f = ((int)(n/1024.0f/1024.0f*10.0f+0.5f))/10.0f;
-    char s[32];
-    sprintf(s, "%.1f", f);
-    unit = _("%s MB", s);
-    // I18N: File size of game assets or addons downloading
-    core::stringw size = _("Size: %s", unit.c_str());
-    m_progress->setText(size);
-}   // updateDownloadSize
-
-// -----------------------------------------------------------------------------
-void DownloadAssets::init()
-{
-    m_progress = getWidget<ProgressBarWidget>("progress");
-    m_all_tracks = getWidget<CheckBoxWidget>("all-tracks");
-    m_all_tracks->setActive(true);
-    m_all_tracks->setVisible(true);
-    m_all_tracks->setState(false);
-    m_hd_textures = getWidget<CheckBoxWidget>("hd-textures");
-    m_hd_textures->setActive(true);
-    m_hd_textures->setVisible(true);
-    m_hd_textures->setState(false);
-    updateDownloadSize();
-    m_ok = getWidget<IconButtonWidget>("ok");
-    m_ok->setActive(true);
-    m_ok->setVisible(true);
-    m_downloading_now = false;
-    m_download_request = NULL;
-    // Remove any previous left over .zip (and part)
-    const std::string& dir = file_manager->getAddonsDir();
-    if (file_manager->fileExists(dir + "nonfull-nonhd.zip"))
-        file_manager->removeFile(dir + "nonfull-nonhd.zip");
-    if (file_manager->fileExists(dir + "full-nonhd.zip"))
-        file_manager->removeFile(dir + "full-nonhd.zip");
-    if (file_manager->fileExists(dir + "nonfull-hd.zip"))
-        file_manager->removeFile(dir + "nonfull-hd.zip");
-    if (file_manager->fileExists(dir + "full-hd.zip"))
-        file_manager->removeFile(dir + "full-hd.zip");
-    if (file_manager->fileExists(dir + "nonfull-nonhd.zip.part"))
-        file_manager->removeFile(dir + "nonfull-nonhd.zip.part");
-    if (file_manager->fileExists(dir + "full-nonhd.zip.part"))
-        file_manager->removeFile(dir + "full-nonhd.zip.part");
-    if (file_manager->fileExists(dir + "nonfull-hd.zip.part"))
-        file_manager->removeFile(dir + "nonfull-hd.zip.part");
-    if (file_manager->fileExists(dir + "full-hd.zip.part"))
-        file_manager->removeFile(dir + "full-hd.zip.part");
-}   // init
-
-// -----------------------------------------------------------------------------
-void DownloadAssets::eventCallback(Widget* widget, const std::string& name,
-                                   const int player_id)
-{
-    if (m_downloading_now)
-        return;
-    if (name == "all-tracks" || name == "hd-textures")
-        updateDownloadSize();
-    else if (name == "buttons")
-    {
-        const std::string& button = getWidget<GUIEngine::RibbonWidget>("buttons")
-            ->getSelectionIDString(PLAYER_ID_GAME_MASTER);
-        if (button == "ok")
-        {
-            m_downloading_now = true;
-            m_ok->setActive(false);
-            m_progress->setText("");
-            m_progress->setValue(0);
-            m_all_tracks->setActive(false);
-            m_hd_textures->setActive(false);
-            std::string download_url = stk_config->m_assets_download_url;
-            std::string filename;
-
-            if (m_all_tracks->getState())
-                filename = "full";
-            else
-                filename = "nonfull";
-            filename += "-";
-            if (m_hd_textures->getState())
-                filename += "hd";
-            else
-                filename += "nonhd";
-            filename += ".zip";
-
-            download_url += STK_VERSION;
-            download_url += "/";
-            download_url += filename;
-
-            m_download_request = new Online::HTTPRequest(filename,
-                true/*manage_memory*/);
-            m_download_request->setDownloadAssetsRequest(true);
-            m_download_request->setURL(download_url);
-            m_download_thread = std::thread([this]()
-                {
-                    m_download_request->executeNow();
-                    const std::string& zip = m_download_request->getFileName();
-                    const std::string& dir =
-                        file_manager->getSTKAssetsDownloadDir();
-                    if (file_manager->fileExists(zip))
-                    {
-                        // Remove previous stk-assets version and create a new
-                        // one
-                        file_manager->removeDirectory(dir);
-                        file_manager->checkAndCreateDirectory(dir);
-                        if (extract_zip(zip, dir, true/*recursive*/))
-                        {
-                            std::string extract_ok =
-                                dir + "/stk-assets." + STK_VERSION;
-                            FILE* fp = fopen(extract_ok.c_str(), "wb");
-                            if (!fp)
-                            {
-                                Log::error("FileUtils",
-                                    "Failed to create extract ok file.");
-                            }
-                            else
-                            {
-                                fclose(fp);
-                                file_manager->reinitAfterDownloadAssets();
-                            }
-                        }
-                        file_manager->removeFile(zip);
-                    }
-                    m_downloading_now = false;
-                });
-        }
-    }
-}   // eventCallback
-
-// ----------------------------------------------------------------------------
-bool DownloadAssets::onEscapePressed()
-{
-    if (m_downloading_now)
-        return false;
-    return true;
-}   // onEscapePressed
-
-// ----------------------------------------------------------------------------
-bool DownloadAssets::needDownloadAssets()
-{
-    const std::string& dir = file_manager->getSTKAssetsDownloadDir();
-    if (dir.empty())
-        return false;
-    return !file_manager->fileExists(dir + "/stk-assets." + STK_VERSION);
-}   // needDownloadAssets
-
-// ----------------------------------------------------------------------------
-void DownloadAssets::onUpdate(float dt)
-{
-    if (m_download_request)
-        m_progress->setValue(m_download_request->getProgress() * 99.0f);
-    if (m_download_thread.joinable())
-    {
-        if (m_downloading_now)
-            return;
-        if (!m_downloading_now)
-        {
-            m_download_thread.join();
-            if (m_download_request)
-            {
-                delete m_download_request;
-                m_download_request = NULL;
-            }
-        }
-        if (!needDownloadAssets())
-            main_loop->abort();
-        else
-        {
-            // Reset the download buttons so user can redownload if needed
-            // I18N: Shown when there is download error for assets download
-            // in the first run
-            core::stringw msg = _("Failed to download assets, check your storage space or internet connection and try again later.");
-            MessageQueue::add(MessageQueue::MT_ERROR, msg);
-            DownloadAssets::init();
-        }
-    }
-}   // onUpdate
diff --git a/src/states_screens/download_assets.hpp b/src/states_screens/download_assets.hpp
deleted file mode 100644
index b01a1aaac..000000000
--- a/src/states_screens/download_assets.hpp
+++ /dev/null
@@ -1,85 +0,0 @@
-//  SuperTuxKart - a fun racing game with go-kart
-//  Copyright (C) 2019 SuperTuxKart-Team
-//
-//  This program 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.
-//
-//  This program 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 this program; if not, write to the Free Software
-//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-
-
-#ifndef HEADER_DOWNLOAD_ASSETS_HPP
-#define HEADER_DOWNLOAD_ASSETS_HPP
-
-#include <atomic>
-#include <string>
-#include <thread>
-#include <irrString.h>
-
-#include "guiengine/screen.hpp"
-
-namespace GUIEngine
-{
-    class CheckBoxWidget;
-    class IconButtonWidget;
-    class ProgressBarWidget;
-}
-
-namespace Online
-{
-    class HTTPRequest;
-}
-
-/**
-  * \ingroup states_screens
-  */
-class DownloadAssets : public GUIEngine::Screen, public GUIEngine::ScreenSingleton<DownloadAssets>
-{
-protected:
-    DownloadAssets();
-
-private:
-    GUIEngine::ProgressBarWidget* m_progress;
-
-    GUIEngine::CheckBoxWidget* m_all_tracks;
-
-    GUIEngine::CheckBoxWidget* m_hd_textures;
-
-    GUIEngine::IconButtonWidget* m_ok;
-
-    std::atomic<bool> m_downloading_now;
-
-    Online::HTTPRequest* m_download_request;
-
-    std::thread m_download_thread;
-
-    void updateDownloadSize();
-public:
-    friend class GUIEngine::ScreenSingleton<DownloadAssets>;
-
-    /** \brief implement callback from parent class GUIEngine::Screen */
-    virtual void loadedFromFile() OVERRIDE {}
-
-    /** \brief implement callback from parent class GUIEngine::Screen */
-    virtual void beforeAddingWidget() OVERRIDE;
-
-    /** \brief implement callback from parent class GUIEngine::Screen */
-    virtual void eventCallback(GUIEngine::Widget* widget, const std::string& name,
-                               const int playerID) OVERRIDE;
-
-    /** \brief implement callback from parent class GUIEngine::Screen */
-    virtual void init() OVERRIDE;
-    virtual bool onEscapePressed() OVERRIDE;
-    virtual void onUpdate(float dt) OVERRIDE;
-    bool needDownloadAssets();
-};   // class DownloadAssets
-
-#endif
diff --git a/src/states_screens/options/options_screen_general.cpp b/src/states_screens/options/options_screen_general.cpp
index 1a0ad3b2d..ee7a602e2 100644
--- a/src/states_screens/options/options_screen_general.cpp
+++ b/src/states_screens/options/options_screen_general.cpp
@@ -38,6 +38,8 @@
 #include "guiengine/widget.hpp"
 #include "io/file_manager.hpp"
 #include "online/request_manager.hpp"
+#include "states_screens/dialogs/download_assets.hpp"
+#include "states_screens/dialogs/message_dialog.hpp"
 #include "states_screens/main_menu_screen.hpp"
 #include "states_screens/options/options_screen_audio.hpp"
 #include "states_screens/options/options_screen_input.hpp"
@@ -46,6 +48,7 @@
 #include "states_screens/options/options_screen_video.hpp"
 #include "states_screens/state_manager.hpp"
 #include "states_screens/options/user_screen.hpp"
+#include "utils/extract_mobile_assets.hpp"
 #include "utils/log.hpp"
 #include "utils/string_utils.hpp"
 #include "utils/translation.hpp"
@@ -113,6 +116,24 @@ void OptionsScreenGeneral::init()
     assert( show_login!= NULL );
     show_login->setState( UserConfigParams::m_always_show_login_screen);
 
+#ifdef MOBILE_STK
+    if (ExtractMobileAssets::hasFullAssets())
+    {
+        // I18N: For mobile version for STK, uninstall the downloaded assets
+        getWidget("assets_settings")->setText(_("Uninstall full game assets"));
+    }
+    else
+    {
+        // I18N: For mobile version for STK, install the full game assets which
+        // will download from stk server
+        getWidget("assets_settings")->setText(_("Install full game assets"));
+    }
+    if (UserConfigParams::m_internet_status != RequestManager::IPERM_ALLOWED ||
+        StateManager::get()->getGameState() == GUIEngine::INGAME_MENU)
+        getWidget("assets_settings")->setActive(false);
+#else
+    getWidget("assets_settings")->setVisible(false);
+#endif
 }   // init
 
 // -----------------------------------------------------------------------------
@@ -217,6 +238,29 @@ void OptionsScreenGeneral::eventCallback(Widget* widget, const std::string& name
         assert( difficulty != NULL );
         UserConfigParams::m_per_player_difficulty = difficulty->getState();
     }
+#ifdef MOBILE_STK
+    else if (name=="assets_settings")
+    {
+        if (ExtractMobileAssets::hasFullAssets())
+        {
+            class AssetsDialogListener : public MessageDialog::IConfirmDialogListener
+            {
+            public:
+                virtual void onConfirm() OVERRIDE
+                {
+                    ModalDialog::dismiss();
+                    ExtractMobileAssets::uninstall();
+                }
+            };   // class AssetsDialogListener
+            new MessageDialog(
+                _("Are you sure to uninstall full game assets?"),
+                MessageDialog::MESSAGE_DIALOG_OK_CANCEL,
+                new AssetsDialogListener(), true);
+        }
+        else
+            new DownloadAssets();
+    }
+#endif
 #endif
 }   // eventCallback
 
diff --git a/src/utils/download_assets_size.hpp b/src/utils/download_assets_size.hpp
index feb2ba934..432c425e2 100644
--- a/src/utils/download_assets_size.hpp
+++ b/src/utils/download_assets_size.hpp
@@ -20,19 +20,10 @@
 #define HEADER_DOWNLOAD_ASSETS_SIZE_HPP
 /* Return .zip file size in bytes (as in ls -l)
  */
-inline unsigned getDownloadAssetsSize(bool is_full, bool is_hd)
+inline unsigned getDownloadAssetsSize()
 {
     // Todo: generated from some sed script
-    unsigned full_hd = 188442091;
-    unsigned full_nonhd = 83487825;
-    unsigned nonfull_hd = 166310030;
-    unsigned nonfull_nonhd = 69282428;
-    if (is_full && is_hd)
-        return full_hd;
-    if (is_full && !is_hd)
-        return full_nonhd;
-    if (!is_full && is_hd)
-        return nonfull_hd;
-    return nonfull_nonhd;
+    unsigned stk_assets_size = 188442091;
+    return stk_assets_size;
 }
 #endif
diff --git a/src/utils/extract_mobile_assets.cpp b/src/utils/extract_mobile_assets.cpp
index 3e5a5af4e..3bca42e9f 100644
--- a/src/utils/extract_mobile_assets.cpp
+++ b/src/utils/extract_mobile_assets.cpp
@@ -20,6 +20,8 @@
 #include "utils/extract_mobile_assets.hpp"
 #include "addons/zip.hpp"
 #include "io/file_manager.hpp"
+#include "graphics/irr_driver.hpp"
+#include "tracks/track_manager.hpp"
 #include "utils/constants.hpp"
 #include "utils/log.hpp"
 
@@ -64,10 +66,27 @@ bool ExtractMobileAssets::extract(const std::string& zip_file,
             succeed = true;
         }
     }
-    if (succeed)
-        file_manager->reinitAfterDownloadAssets();
     file_manager->removeFile(zip_file);
     return succeed;
 }   // extract
 
+// ----------------------------------------------------------------------------
+void ExtractMobileAssets::reinit()
+{
+    file_manager->reinitAfterDownloadAssets();
+    irr_driver->sameRestart();
+    track_manager->loadTrackList();
+}   // reinit
+
+// ----------------------------------------------------------------------------
+void ExtractMobileAssets::uninstall()
+{
+    // Remove the version file in stk-assets folder first, so if it crashes /
+    // restarted by mobile it will auto discard downloaded assets
+    file_manager->removeFile(file_manager->getSTKAssetsDownloadDir() +
+        "stk-assets." + STK_VERSION);
+    file_manager->removeDirectory(file_manager->getSTKAssetsDownloadDir());
+    reinit();
+}   // uninstall
+
 #endif
diff --git a/src/utils/extract_mobile_assets.hpp b/src/utils/extract_mobile_assets.hpp
index 2cb4c65c7..275234b32 100644
--- a/src/utils/extract_mobile_assets.hpp
+++ b/src/utils/extract_mobile_assets.hpp
@@ -26,6 +26,8 @@ namespace ExtractMobileAssets
 {
 bool hasFullAssets();
 bool extract(const std::string& zip_file, const std::string& dst);
+void reinit();
+void uninstall();
 } // namespace FileUtils
 
 #endif