Files App - Copy, Cut, Paste Actions

Documentation/ideas.md

@@ -85,7 +85,6 @@
 - T-Deck: Use trackball as input device (with optional mouse functionality for LVGL)
 - Show a warning screen if firmware encryption or secure boot are off when saving WiFi credentials.
 - Remove flex_flow from app_container in Gui.cpp
-- Files app: copy/cut/paste actions
 - ElfAppManifest: change name (remove "manifest" as it's confusing), remove icon and title, publish snapshot SDK on CDN
 - Bug: CYD 2432S032C screen rotation fails due to touch driver issue
 - Calculator app should show regular text input field on non-touch devices that have a keyboard (Cardputer, T-Lora Pager)

Modules/lvgl-module/source/symbols.c

@@ -155,6 +155,8 @@ const struct ModuleSymbol lvgl_module_symbols[] = {
     DEFINE_MODULE_SYMBOL(lv_obj_class_init_obj),
     DEFINE_MODULE_SYMBOL(lv_obj_move_foreground),
     DEFINE_MODULE_SYMBOL(lv_obj_move_to_index),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_min_height),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_max_height),
     // lv_font
     DEFINE_MODULE_SYMBOL(lv_font_get_default),
     // lv_theme
@@ -385,6 +387,7 @@ const struct ModuleSymbol lvgl_module_symbols[] = {
     DEFINE_MODULE_SYMBOL(lv_group_set_editing),
     DEFINE_MODULE_SYMBOL(lv_group_create),
     DEFINE_MODULE_SYMBOL(lv_group_delete),
+    DEFINE_MODULE_SYMBOL(lv_group_get_editing),
     // lv_mem
     DEFINE_MODULE_SYMBOL(lv_free),
     DEFINE_MODULE_SYMBOL(lv_malloc),
@@ -407,5 +410,9 @@ const struct ModuleSymbol lvgl_module_symbols[] = {
     DEFINE_MODULE_SYMBOL(lv_anim_start),
     DEFINE_MODULE_SYMBOL(lv_anim_path_ease_in_out),
     DEFINE_MODULE_SYMBOL(lv_anim_path_linear),
+    DEFINE_MODULE_SYMBOL(lv_anim_path_ease_in),
+    DEFINE_MODULE_SYMBOL(lv_anim_path_ease_out),
+    // lv_async
+    DEFINE_MODULE_SYMBOL(lv_async_call),
     MODULE_SYMBOL_TERMINATOR
 };

Tactility/Private/Tactility/app/files/State.h

@@ -2,7 +2,9 @@
 
 #include <Tactility/RecursiveMutex.h>
 
+#include <optional>
 #include <string>
+#include <utility>
 #include <vector>
 #include <dirent.h>
 
@@ -17,7 +19,8 @@ class State final {
         ActionDelete,
         ActionRename,
         ActionCreateFile,
-        ActionCreateFolder
+        ActionCreateFolder,
+        ActionPaste
     };
 
 private:
@@ -27,6 +30,10 @@ class State final {
     std::string current_path;
     std::string selected_child_entry;
     PendingAction action = ActionNone;
+    std::string pending_paste_dst;
+    std::string clipboard_path;
+    bool clipboard_is_cut = false;
+    bool clipboard_active = false;
 
 public:
 
@@ -66,6 +73,46 @@ class State final {
     PendingAction getPendingAction() const { return action; }
 
     void setPendingAction(PendingAction newAction) { action = newAction; }
+
+    // These accessors intentionally omit mutex locking: both are only called
+    // from the UI thread (onPastePressed → onResult), so no concurrent access
+    // is possible.  If that threading assumption changes, add mutex guards here
+    // to match the clipboard accessors above.
+    std::string getPendingPasteDst() const { return pending_paste_dst; }
+    void setPendingPasteDst(const std::string& dst) { pending_paste_dst = dst; }
+
+    void setClipboard(const std::string& path, bool is_cut) {
+        mutex.withLock([&] {
+            clipboard_path = path;
+            clipboard_is_cut = is_cut;
+            clipboard_active = true;
+        });
+    }
+
+    bool hasClipboard() const {
+        bool result = false;
+        mutex.withLock([&] { result = clipboard_active; });
+        return result;
+    }
+
+    /** Returns {path, is_cut} atomically, or nullopt if clipboard is empty. */
+    std::optional<std::pair<std::string, bool>> getClipboard() const {
+        std::optional<std::pair<std::string, bool>> result;
+        mutex.withLock([&] {
+            if (clipboard_active) {
+                result = { clipboard_path, clipboard_is_cut };
+            }
+        });
+        return result;
+    }
+
+    void clearClipboard() {
+        mutex.withLock([&] {
+            clipboard_active = false;
+            clipboard_path.clear();
+            clipboard_is_cut = false;
+        });
+    }
 };
 
 }

Tactility/Private/Tactility/app/files/View.h

@@ -21,10 +21,12 @@ class View final {
     lv_obj_t* navigate_up_button = nullptr;
     lv_obj_t* new_file_button = nullptr;
     lv_obj_t* new_folder_button = nullptr;
+    lv_obj_t* paste_button = nullptr;
 
     std::string installAppPath = { 0 };
     LaunchId installAppLaunchId = 0;
 
+    void showActions();
     void showActionsForDirectory();
     void showActionsForFile();
 
@@ -46,13 +48,17 @@ class View final {
     void onDeletePressed();
     void onNewFilePressed();
     void onNewFolderPressed();
+    void onCopyPressed();
+    void onCutPressed();
+    void onPastePressed();
     void onDirEntryListScrollBegin();
     void onResult(LaunchId launchId, Result result, std::unique_ptr<Bundle> bundle);
     void deinit(const AppContext& appContext);
 
 private:
 
     bool resolveDirentFromListIndex(int32_t list_index, dirent& out_entry);
+    void doPaste(const std::string& src, bool is_cut, const std::string& dst);
 };
 
 }