Fix DECOM cursor motion

This fixes a missing `GOTO 0,0` when entering the terminal origin mode.

Closes #8636.

CHANGELOG.md

@@ -35,6 +35,7 @@ Notable changes to the `alacritty_terminal` crate are documented in its
 - Hint bindings not respecting IPC overrides
 - Search matching a wrapping fullwidth character in the last column
 - Crash when `AppleFontSmoothing` option is not present on macOS
+- Origin mode (DECOM) not moving cursor to the origin point
 
 ## 0.15.1
 

alacritty_terminal/src/term/mod.rs

@@ -1979,7 +1979,10 @@ impl<T: EventListener> Handler for Term<T> {
             },
             NamedPrivateMode::AlternateScroll => self.mode.insert(TermMode::ALTERNATE_SCROLL),
             NamedPrivateMode::LineWrap => self.mode.insert(TermMode::LINE_WRAP),
-            NamedPrivateMode::Origin => self.mode.insert(TermMode::ORIGIN),
+            NamedPrivateMode::Origin => {
+                self.mode.insert(TermMode::ORIGIN);
+                self.goto(0, 0);
+            },
             NamedPrivateMode::ColumnMode => self.deccolm(),
             NamedPrivateMode::BlinkingCursor => {
                 let style = self.cursor_style.get_or_insert(self.config.default_cursor_style);

alacritty_terminal/tests/ref.rs

@@ -72,6 +72,7 @@ ref_tests! {
     zsh_tab_completion
     erase_in_line
     scroll_in_region_up_preserves_history
+    origin_goto
 }
 
 fn read_u8<P>(path: P) -> Vec<u8>

alacritty_terminal/tests/ref/origin_goto/alacritty.recording

@@ -0,0 +1,2 @@
+%                                                                                                                 
 

 UL  ~/programming/alacritty/alacritty  origin_mode ↑  

 UL  ~/programming/alacritty/alacritty  origin_mode ↑  [?2004hprintf "\e[2J\e[?6hHere"[?2004l
+[?6hHere%                                                                                                                 
 

 UL  ~/programming/alacritty/alacritty  origin_mode ↑  

 UL  ~/programming/alacritty/alacritty  origin_mode ↑  [?2004h

alacritty_terminal/tests/ref/origin_goto/config.json

@@ -0,0 +1 @@
+{"history_size":0}

alacritty_terminal/tests/ref/origin_goto/size.json

@@ -0,0 +1 @@
+{"columns":114,"screen_lines":37}