fix #1037 Stepper support for styling similar to v1

Author: vegegoku

domino-ui/src/main/java/org/dominokit/domino/ui/stepper/Stepper.java

@@ -309,6 +309,22 @@ public Stepper reset(StepState startState, Consumer<List<Step>> stepsConsumer) {
     return this;
   }
 
+  /**
+   * Hide/Show the last step tail
+   *
+   * @param hide boolean to hide/show the last step tail
+   * @return same StepperTrack instance
+   */
+  public Stepper setHideStepperTail(boolean hide) {
+    stepperTrack.setHideStepperTail(hide);
+    return this;
+  }
+
+  /** @return true if the stepper last step tail is hidden. */
+  public boolean isStepperTailHidden() {
+    return stepperTrack.isStepperTailHidden();
+  }
+
   /** {@inheritDoc} */
   @Override
   public HTMLDivElement element() {

domino-ui/src/main/java/org/dominokit/domino/ui/stepper/StepperStyles.java

@@ -36,25 +36,5 @@ public interface StepperStyles {
   CssClass dui_stepper_active_content = () -> "dui-stepper-active-content";
   CssClass dui_step_prefix = () -> "dui-step-prefix";
   CssClass dui_step_last = () -> "dui-step-last";
-  String D_STEPPER = "d-stepper";
-  String STEP_CONTENT = "step-content";
-  String LAST_STEP = "last-step";
-  String HORIZONTAL_STEPPER = "horizontal-stepper";
-  String VERTICAL_STEPPER = "vertical-stepper";
-  String STEP_ACTIVE = "step-active";
-  String STEP_INACTIVE = "step-inactive";
-  String STEP_ERROR = "step-error";
-  String STEP_COMPLETED = "step-completed";
-  String STEP_DISABLED = "step-disabled";
-  String STEP_HEADER = "step-header";
-  String STEP_NUMBER_CNTR = "step-number-cntr";
-  String STEP_NUMBER = "step-number";
-  String STEP_VERTICAL_BAR = "step-vertical-bar";
-  String STEP_TITLE_CNTR = "step-title-cntr";
-  String STEP_MAIN_TITLE_CNTR = "step-main-title-cntr";
-  String STEP_TITLE = "step-title";
-  String STEP_HORIZONTAL_BAR = "step-horizontal-bar";
-  String STEP_DESCRIPTION = "step-description";
-  String STEP_ERRORS = "step-errors";
-  String STEP_INVALID = "step-invalid";
+  CssClass dui_hide_stepper_tail = () -> "dui-stepper-hide-tail";
 }

domino-ui/src/main/java/org/dominokit/domino/ui/stepper/StepperTrack.java

@@ -44,6 +44,7 @@
  */
 public class StepperTrack extends BaseDominoElement<HTMLDivElement, StepperTrack>
     implements StepperStyles, HasComponentConfig<StepperConfig> {
+
   private final DivElement root;
   private final List<StepTracker> trackers = new ArrayList<>();
   public BooleanCssClass textPosition = BooleanCssClass.of(dui_reversed);
@@ -424,6 +425,22 @@ public StepperTrack setTextPositionReversed(boolean reversed) {
     return this;
   }
 
+  /**
+   * Hide/Show the last step tail
+   *
+   * @param hide boolean to hide/show the last step tail
+   * @return same StepperTrack instance
+   */
+  public StepperTrack setHideStepperTail(boolean hide) {
+    BooleanCssClass.of(dui_hide_stepper_tail, hide).apply(this);
+    return this;
+  }
+
+  /** @return true if the stepper last step tail is hidden. */
+  public boolean isStepperTailHidden() {
+    return dui_hide_stepper_tail.isAppliedTo(this);
+  }
+
   /** {@inheritDoc} */
   @Override
   public HTMLDivElement element() {

domino-ui/src/main/resources/org/dominokit/domino/ui/public/css/domino-ui/dui-components/domino-ui-stepper.css

@@ -318,4 +318,11 @@
     border-radius: var(--dui-stepper-step-prefix-border-radius);
     background-color: var(--dui-accent-l-4);
     color: var(--dui-text-color);
-}
+}
+
+.dui-stepper-hide-tail .dui-step-track:last-child {
+    flex-grow: 0;
+}
+.dui-stepper-hide-tail .dui-step-track:last-child .dui-tracker-line {
+    display: none;
+}