From 0e6334db962ffd7389fdb6e06f81dc2c8779882b Mon Sep 17 00:00:00 2001
From: Leroy Hopson <git@leroy.geek.nz>
Date: Thu, 8 Jul 2021 20:33:46 +0700
Subject: [PATCH] Add copy selection support

---
 addons/godot_xterm/native/src/terminal.cpp    | 9 +++++++++
 addons/godot_xterm/native/src/terminal.h      | 1 +
 addons/godot_xterm/nodes/terminal/terminal.gd | 6 ++++++
 examples/terminal/terminal.gd                 | 2 +-
 examples/terminal/terminal.tscn               | 1 +
 5 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/addons/godot_xterm/native/src/terminal.cpp b/addons/godot_xterm/native/src/terminal.cpp
index ba90e85..7bc0f5a 100644
--- a/addons/godot_xterm/native/src/terminal.cpp
+++ b/addons/godot_xterm/native/src/terminal.cpp
@@ -289,6 +289,7 @@ void Terminal::_register_methods() {
   register_method("start_selection", &Terminal::start_selection);
   register_method("select_to_pointer", &Terminal::select_to_pointer);
   register_method("reset_selection", &Terminal::reset_selection);
+  register_method("copy_selection", &Terminal::copy_selection);
 
   register_method("_update_theme", &Terminal::update_theme);
   register_method("_update_size", &Terminal::update_theme);
@@ -597,4 +598,12 @@ void Terminal::select_to_pointer(Vector2 position) {
 void Terminal::reset_selection() {
   tsm_screen_selection_reset(screen);
   update();
+}
+
+String Terminal::copy_selection() {
+  char *out = nullptr;
+  int len = tsm_screen_selection_copy(screen, &out);
+  String result = String(out);
+  std::free(out);
+  return result;
 }
\ No newline at end of file
diff --git a/addons/godot_xterm/native/src/terminal.h b/addons/godot_xterm/native/src/terminal.h
index c5ea690..edaaa8d 100644
--- a/addons/godot_xterm/native/src/terminal.h
+++ b/addons/godot_xterm/native/src/terminal.h
@@ -61,6 +61,7 @@ public:
   void start_selection(Vector2 position);
   void select_to_pointer(Vector2 position);
   void reset_selection();
+  String copy_selection();
 
   enum UpdateMode {
     DISABLED,
diff --git a/addons/godot_xterm/nodes/terminal/terminal.gd b/addons/godot_xterm/nodes/terminal/terminal.gd
index 8c3affb..2506436 100644
--- a/addons/godot_xterm/nodes/terminal/terminal.gd
+++ b/addons/godot_xterm/nodes/terminal/terminal.gd
@@ -31,6 +31,9 @@ export (UpdateMode) var update_mode = UpdateMode.AUTO setget set_update_mode
 var cols = 2
 var rows = 2
 
+# If true, text in the terminal will be copied to the clipboard when selected.
+export (bool) var copy_on_selection
+
 var _viewport: Viewport = preload("./viewport.tscn").instance()
 var _native_terminal: Control = _viewport.get_node("Terminal")
 var _screen := TextureRect.new()
@@ -167,6 +170,9 @@ func _handle_selection(event: InputEventMouse):
 
 func _on_selection_held() -> void:
 	if not Input.is_mouse_button_pressed(BUTTON_LEFT) or _selecting_mode == SelectionMode.NONE:
+		if copy_on_selection:
+			var selection = _native_terminal.copy_selection()
+			OS.set_clipboard(selection)
 		_selection_timer.stop()
 		return
 
diff --git a/examples/terminal/terminal.gd b/examples/terminal/terminal.gd
index 5e6209b..0910760 100644
--- a/examples/terminal/terminal.gd
+++ b/examples/terminal/terminal.gd
@@ -1,4 +1,4 @@
-extends GDXterm.Terminal
+extends "res://addons/godot_xterm/nodes/terminal/terminal.gd"
 
 onready var pty = $PTY
 
diff --git a/examples/terminal/terminal.tscn b/examples/terminal/terminal.tscn
index 1bcaa11..c9da576 100644
--- a/examples/terminal/terminal.tscn
+++ b/examples/terminal/terminal.tscn
@@ -11,6 +11,7 @@ script = ExtResource( 3 )
 __meta__ = {
 "_edit_use_anchors_": false
 }
+copy_on_selection = true
 
 [node name="PTY" type="Node" parent="."]
 script = ExtResource( 2 )