From c1ccfaed5ba8c07c8b9e9d28cfca1e6806497ae0 Mon Sep 17 00:00:00 2001
From: Maxim Nikolenko <maximnproductengine@lindenlab.com>
Date: Wed, 19 Aug 2026 17:07:51 +0300
Subject: #5749 Add LEAP API for Cut, Copy, Paste, and Select All

---
 indra/newview/llwindowlistener.cpp | 90 ++++++++++++++++++++++++++++++++++++++
 indra/newview/llwindowlistener.h   |  4 ++
 2 files changed, 94 insertions(+)

diff --git a/indra/newview/llwindowlistener.cpp b/indra/newview/llwindowlistener.cpp
index 54eb61a6bf..69160bcd6e 100644
--- a/indra/newview/llwindowlistener.cpp
+++ b/indra/newview/llwindowlistener.cpp
@@ -120,6 +120,22 @@ LLWindowListener::LLWindowListener(LLViewerWindow *window, const KeyboardGetter&
         "Paste specified [\"text\"] into the current edit field\n"
         "Optional [\"path\"] specifies target UI element (must be focusable).",
         &LLWindowListener::pasteText);
+    add("cut",
+        "Cut selected content from the focused edit field.\n"
+        "Optional [\"path\"] specifies target UI element (must be focusable).",
+        &LLWindowListener::cut);
+    add("copy",
+        "Copy selected content from the focused edit field.\n"
+        "Optional [\"path\"] specifies target UI element (must be focusable).",
+        &LLWindowListener::copy);
+    add("paste",
+        "Paste clipboard contents into the focused edit field.\n"
+        "Optional [\"path\"] specifies target UI element (must be focusable).",
+        &LLWindowListener::paste);
+    add("selectAll",
+        "Select all content in the focused edit field.\n"
+        "Optional [\"path\"] specifies target UI element (must be focusable).",
+        &LLWindowListener::selectAll);
 }
 
 template <typename MAPPED>
@@ -657,3 +673,77 @@ void LLWindowListener::pasteText(LLSD const & evt)
         LLClipboard::instance().reset();
     }
 }
+
+// Helper: optionally focus a view by path; returns false and sets response error on failure.
+static bool focusViewByPath(const LLSD& evt, LLEventAPI::Response& response)
+{
+    if (!evt.has("path"))
+        return true;
+
+    std::string path(evt["path"]);
+    LLView* target_view = LLUI::getInstance()->resolvePath(LLUI::getInstance()->getRootView(), path);
+    if (!target_view)
+    {
+        response.error(STRINGIZE(evt["op"].asString() << " request specified invalid \"path\": " << path));
+        return false;
+    }
+    if (!target_view->isAvailable())
+    {
+        response.error(STRINGIZE("Target view specified by \"path\": " << path << " is not visible"));
+        return false;
+    }
+    gFocusMgr.setKeyboardFocus(target_view);
+    return true;
+}
+
+void LLWindowListener::cut(LLSD const & evt)
+{
+    Response response(LLSD(), evt);
+    if (!focusViewByPath(evt, response))
+        return;
+    if (!LLEditMenuHandler::gEditMenuHandler)
+    {
+        response.error(STRINGIZE(evt["op"].asString() << " request failed: no edit menu handler available"));
+        return;
+    }
+    LLEditMenuHandler::gEditMenuHandler->cut();
+}
+
+void LLWindowListener::copy(LLSD const & evt)
+{
+    Response response(LLSD(), evt);
+    if (!focusViewByPath(evt, response))
+        return;
+    if (!LLEditMenuHandler::gEditMenuHandler)
+    {
+        response.error(STRINGIZE(evt["op"].asString() << " request failed: no edit menu handler available"));
+        return;
+    }
+    LLEditMenuHandler::gEditMenuHandler->copy();
+}
+
+void LLWindowListener::paste(LLSD const & evt)
+{
+    Response response(LLSD(), evt);
+    if (!focusViewByPath(evt, response))
+        return;
+    if (!LLEditMenuHandler::gEditMenuHandler)
+    {
+        response.error(STRINGIZE(evt["op"].asString() << " request failed: no edit menu handler available"));
+        return;
+    }
+    LLEditMenuHandler::gEditMenuHandler->paste();
+}
+
+void LLWindowListener::selectAll(LLSD const & evt)
+{
+    Response response(LLSD(), evt);
+    if (!focusViewByPath(evt, response))
+        return;
+    if (!LLEditMenuHandler::gEditMenuHandler)
+    {
+        response.error(STRINGIZE(evt["op"].asString() << " request failed: no edit menu handler available"));
+        return;
+    }
+    LLEditMenuHandler::gEditMenuHandler->selectAll();
+}
diff --git a/indra/newview/llwindowlistener.h b/indra/newview/llwindowlistener.h
index 537322b19b..06e4090f6d 100644
--- a/indra/newview/llwindowlistener.h
+++ b/indra/newview/llwindowlistener.h
@@ -49,6 +49,10 @@ public:
     void mouseMove(LLSD const & evt);
     void mouseScroll(LLSD const & evt);
     void pasteText(LLSD const & evt);
+    void cut(LLSD const & evt);
+    void copy(LLSD const & evt);
+    void paste(LLSD const & evt);
+    void selectAll(LLSD const & evt);
 
 private:
     LLViewerWindow * mWindow;
-- 
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