Add mouse window controls and finer display scaling (#63)

Add configurable mouse and wheel bindings, window move and resize, tab drops, cross-output dragging, and device settings. Adjust display scaling in 0.05 increments.

Preserve opposite-edge positioning during scrolling resizes and show rows for edge drops into tabbed columns.

shell/ferese-settings/src/displays_ui.rs

@@ -152,7 +152,7 @@ impl App {
                         default: 1.,
                         min: 0.75,
                         max: 3.,
-                        step: 0.25,
+                        step: 0.05,
                         suffix: "×",
                         integer: false,
                     },

shell/ferese-settings/src/pages.rs

@@ -375,7 +375,7 @@ impl App {
                     );
                 }
                 Page::Shortcuts => {
-                    body = body.push(self.note("Keyboard and swipe bindings share the same actions. Use Swipe3Up, Swipe3Down, Swipe3Left, or Swipe3Right as a shortcut (also supports 4 or 5 fingers). Actions include toggle-overview, spawn, focus, move, workspace-next, workspace-previous, workspace-back-and-forth, and none. Leave Argument empty for actions such as toggle-overview or none."));
+                    body = body.push(self.note("Keyboard, mouse and swipe bindings share the same actions. Mouse shortcuts can use MouseLeft, MouseRight, MouseMiddle, MouseBack, MouseForward or WheelUp/Down/Left/Right with modifiers. Use pointer-move or pointer-resize for dragging. Swipes use Swipe3Up, Swipe3Down, Swipe3Left or Swipe3Right (also supports 4 or 5 fingers). Actions such as toggle-overview and none need no argument."));
                     let mut gestures = row([]).spacing(6);
                     for (keys, label) in [
                         ("Swipe3Up", "Customize swipe up"),

shell/ferese-settings/src/schema.rs

@@ -827,6 +827,69 @@ pub fn fields(page: Page) -> Vec<Field> {
                 "Avoid accidental pointer movement.",
                 true,
             ),
+            toggle(
+                "input.touchpad.disable_while_mouse_connected",
+                "Disable touchpad with a mouse",
+                "Pause the built-in touchpad while an external mouse is connected.",
+                false,
+            ),
+            range(
+                "input.touchpad.accel_speed",
+                "Touchpad speed",
+                "Adjust pointer acceleration for the touchpad.",
+                RangeSpec {
+                    default: 0.0,
+                    min: -1.0,
+                    max: 1.0,
+                    step: 0.05,
+                    suffix: "",
+                    integer: false,
+                },
+            ),
+            toggle(
+                "input.mouse.natural_scroll",
+                "Mouse natural scrolling",
+                "Reverse the direction of the mouse wheel.",
+                false,
+            ),
+            toggle(
+                "input.mouse.left_handed",
+                "Left-handed mouse",
+                "Swap the primary and secondary mouse buttons.",
+                false,
+            ),
+            toggle(
+                "input.mouse.middle_emulation",
+                "Emulate middle click",
+                "Press both mouse buttons together to middle-click.",
+                false,
+            ),
+            range(
+                "input.mouse.accel_speed",
+                "Mouse speed",
+                "Adjust pointer acceleration for connected mice.",
+                RangeSpec {
+                    default: 0.0,
+                    min: -1.0,
+                    max: 1.0,
+                    step: 0.05,
+                    suffix: "",
+                    integer: false,
+                },
+            ),
+            range(
+                "input.mouse.scroll_factor",
+                "Mouse scroll speed",
+                "Scale wheel scrolling in applications.",
+                RangeSpec {
+                    default: 1.0,
+                    min: 0.1,
+                    max: 5.0,
+                    step: 0.1,
+                    suffix: "×",
+                    integer: false,
+                },
+            ),
             range(
                 "input.touchpad.swipe_threshold",
                 "Swipe distance",