editor: Fix setting multi_cursor_modifier opens implementation in new pane instead of new tab (#41963)

Closes #41014

Release Notes:

- Fixed an issue where `multi_cursor_modifier` set to `cmd_or_ctrl`
opens implementation in new pane instead of new tab.

crates/editor/src/editor.rs

@@ -7599,18 +7599,17 @@ impl Editor {
         )
     }
 
-    fn multi_cursor_modifier(invert: bool, modifiers: &Modifiers, cx: &mut Context<Self>) -> bool {
-        let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
-        if invert {
-            match multi_cursor_setting {
-                MultiCursorModifier::Alt => modifiers.alt,
-                MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
-            }
-        } else {
-            match multi_cursor_setting {
-                MultiCursorModifier::Alt => modifiers.secondary(),
-                MultiCursorModifier::CmdOrCtrl => modifiers.alt,
-            }
+    fn is_cmd_or_ctrl_pressed(modifiers: &Modifiers, cx: &mut Context<Self>) -> bool {
+        match EditorSettings::get_global(cx).multi_cursor_modifier {
+            MultiCursorModifier::Alt => modifiers.secondary(),
+            MultiCursorModifier::CmdOrCtrl => modifiers.alt,
+        }
+    }
+
+    fn is_alt_pressed(modifiers: &Modifiers, cx: &mut Context<Self>) -> bool {
+        match EditorSettings::get_global(cx).multi_cursor_modifier {
+            MultiCursorModifier::Alt => modifiers.alt,
+            MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
         }
     }
 
@@ -7619,9 +7618,9 @@ impl Editor {
         cx: &mut Context<Self>,
     ) -> Option<ColumnarMode> {
         if modifiers.shift && modifiers.number_of_modifiers() == 2 {
-            if Self::multi_cursor_modifier(false, modifiers, cx) {
+            if Self::is_cmd_or_ctrl_pressed(modifiers, cx) {
                 Some(ColumnarMode::FromMouse)
-            } else if Self::multi_cursor_modifier(true, modifiers, cx) {
+            } else if Self::is_alt_pressed(modifiers, cx) {
                 Some(ColumnarMode::FromSelection)
             } else {
                 None

crates/editor/src/element.rs

@@ -820,7 +820,7 @@ impl EditorElement {
             editor.select(
                 SelectPhase::Begin {
                     position,
-                    add: Editor::multi_cursor_modifier(true, &modifiers, cx),
+                    add: Editor::is_alt_pressed(&modifiers, cx),
                     click_count,
                 },
                 window,
@@ -1004,7 +1004,7 @@ impl EditorElement {
         let text_hitbox = &position_map.text_hitbox;
         let pending_nonempty_selections = editor.has_pending_nonempty_selection();
 
-        let hovered_link_modifier = Editor::multi_cursor_modifier(false, &event.modifiers(), cx);
+        let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&event.modifiers(), cx);
 
         if let Some(mouse_position) = event.mouse_position()
             && !pending_nonempty_selections

crates/editor/src/hover_links.rs

@@ -116,7 +116,7 @@ impl Editor {
         window: &mut Window,
         cx: &mut Context<Self>,
     ) {
-        let hovered_link_modifier = Editor::multi_cursor_modifier(false, &modifiers, cx);
+        let hovered_link_modifier = Editor::is_cmd_or_ctrl_pressed(&modifiers, cx);
         if !hovered_link_modifier || self.has_pending_selection() {
             self.hide_hovered_link(cx);
             return;
@@ -241,8 +241,8 @@ impl Editor {
                         }
                     })
                     .collect();
-                let navigate_task =
-                    self.navigate_to_hover_links(None, links, modifiers.alt, window, cx);
+                let split = Self::is_alt_pressed(&modifiers, cx);
+                let navigate_task = self.navigate_to_hover_links(None, links, split, window, cx);
                 self.select(SelectPhase::End, window, cx);
                 return navigate_task;
             }
@@ -261,7 +261,8 @@ impl Editor {
         );
 
         let navigate_task = if point.as_valid().is_some() {
-            match (modifiers.shift, modifiers.alt) {
+            let split = Self::is_alt_pressed(&modifiers, cx);
+            match (modifiers.shift, split) {
                 (true, true) => {
                     self.go_to_type_definition_split(&GoToTypeDefinitionSplit, window, cx)
                 }