Merge pull request #602 from eshifri/eshifri/SD_Navigation

Highlight file/folder when selected by touch before release allowing change of mind

radio/src/gui/colorlcd/radio_sdmanager.cpp

@@ -211,6 +211,28 @@ class FlashDialog: public FullScreenDialog
     Progress progress;
 };
 
+class SDmanagerButton : public TextButton
+{
+  public:
+    SDmanagerButton(FormGroup* parent, const rect_t& rect, std::string text,
+              std::function<uint8_t(void)> pressHandler = nullptr,
+              WindowFlags windowFlags = BUTTON_BACKGROUND | OPAQUE,
+              LcdFlags textFlags = 0 ) : TextButton(parent, rect, text, pressHandler, windowFlags, textFlags)
+              {
+              }; 
+#if defined(HARDWARE_TOUCH)
+  bool onTouchStart(coord_t x, coord_t y) override
+  {
+    if (enabled) {
+      if (!(windowFlags & NO_FOCUS)) {
+        setFocus(SET_FOCUS_DEFAULT);
+      }
+    }
+    return true;
+  }
+#endif              
+};
+
 void RadioSdManagerPage::build(FormWindow * window)
 {
   FormGridLayout grid;
@@ -250,7 +272,7 @@ void RadioSdManagerPage::build(FormWindow * window)
     files.sort(compare_nocase);
     
     for (auto name: directories) {
-      auto b = new TextButton(window, grid.getLabelSlot(), name, [=]() -> uint8_t {
+      auto b = new SDmanagerButton(window, grid.getLabelSlot(), name, [=]() -> uint8_t {
           std::string fullpath = currentPath + "/" + name;
           f_chdir((TCHAR*)fullpath.c_str());
           window->clear();
@@ -262,7 +284,7 @@ void RadioSdManagerPage::build(FormWindow * window)
     }
 
     for (auto name: files) {
-      auto button = new TextButton(window, grid.getLabelSlot(), name, [=]() -> uint8_t {
+      auto button = new SDmanagerButton(window, grid.getLabelSlot(), name, [=]() -> uint8_t {
           auto menu = new Menu(window);
           f_chdir(currentPath.c_str());
           const char *ext = getFileExtension(name.data());