Revert Grid row height per section feature (#9823)8.1.2

Revert changes for #9425 (PRs #9810 and #9813) in the 8.1 branch.

This reverts commit bda7e54cb6eadddf07fb19d88479c642c4831a66.
This reverts commit 1f878089dec6c03090efbcc79b08edbfbffb7620.

7 files changed, 23 insertions, 193 deletions

diff --git a/all/src/main/templates/release-notes.html b/all/src/main/templates/release-notes.html
index 4aba9969f0..afc82cc67d 100644
--- a/all/src/main/templates/release-notes.html
+++ b/all/src/main/templates/release-notes.html
@@ -116,7 +116,6 @@
         <li><tt>TreeGrid.createColumn()</tt> has an additional parameter.</li>
         <li><tt>LocalDateTimeToDateConverter</tt> now uses <tt>ZoneId</tt> instead of <tt>ZoneOffset</tt>.</li>
         <li><tt>FontAwesome</tt> icon alignment in <tt>ComboBox</tt> has changed in the theme.</li>
-        <li><tt>GridState</tt> variable <tt>rowHeight</tt> has replaced by three variables.</li>
 
         <h2>For incompatible or behaviour-altering changes in 8.0, please see <a href="https://vaadin.com/download/release/8.0/8.0.0/release-notes.html#incompatible">8.0 release notes</a></h2>
         
diff --git a/client/src/main/java/com/vaadin/client/connectors/grid/GridConnector.java b/client/src/main/java/com/vaadin/client/connectors/grid/GridConnector.java
index 41602fbcef..61c0957d03 100644
--- a/client/src/main/java/com/vaadin/client/connectors/grid/GridConnector.java
+++ b/client/src/main/java/com/vaadin/client/connectors/grid/GridConnector.java
@@ -44,7 +44,6 @@ import com.vaadin.client.connectors.AbstractListingConnector;
 import com.vaadin.client.connectors.grid.ColumnConnector.CustomColumn;
 import com.vaadin.client.data.DataSource;
 import com.vaadin.client.ui.SimpleManagedLayout;
-import com.vaadin.client.widget.escalator.RowContainer;
 import com.vaadin.client.widget.grid.CellReference;
 import com.vaadin.client.widget.grid.EventCellReference;
 import com.vaadin.client.widget.grid.events.BodyClickHandler;
@@ -118,7 +117,6 @@ public class GridConnector extends AbstractListingConnector
     /* Child component list for HasComponentsConnector */
     private List<ComponentConnector> childComponents;
     private ItemClickHandler itemClickHandler = new ItemClickHandler();
-    private boolean rowHeightScheduled = false;
 
     /**
      * Gets the string identifier of the given column in this grid.
@@ -349,53 +347,19 @@ public class GridConnector extends AbstractListingConnector
         grid.setHeaderVisible(state.visible);
     }
 
-    @OnStateChange({ "bodyRowHeight", "headerRowHeight", "footerRowHeight" })
+    @OnStateChange("rowHeight")
     void updateRowHeight() {
-        if (rowHeightScheduled) {
-            return;
-        }
-
-        Scheduler.get().scheduleFinally(() -> {
-            GridState state = getState();
-            if (getWidget().isAttached() && rowHeightNeedsReset()) {
-                getWidget().resetSizesFromDom();
-            }
-            updateContainerRowHeigth(getWidget().getEscalator().getBody(),
-                    state.bodyRowHeight);
-            updateContainerRowHeigth(getWidget().getEscalator().getHeader(),
-                    state.headerRowHeight);
-            updateContainerRowHeigth(getWidget().getEscalator().getFooter(),
-                    state.footerRowHeight);
-            rowHeightScheduled = false;
-        });
-
-        rowHeightScheduled = true;
-    }
-
-    private boolean rowHeightNeedsReset() {
-        GridState state = getState();
-        // Body
-        boolean bodyAutoCalc = state.bodyRowHeight < 0;
-
-        // Header
-        boolean headerAutoCalc = state.headerRowHeight < 0;
-        boolean headerReset = headerAutoCalc && hasVisibleContent(state.header);
-
-        // Footer
-        boolean footerAutoCalc = state.footerRowHeight < 0;
-        boolean footerReset = footerAutoCalc && hasVisibleContent(state.footer);
-
-        return bodyAutoCalc || headerReset || footerReset;
-    }
-
-    private boolean hasVisibleContent(SectionState state) {
-        return state.visible && !state.rows.isEmpty();
-    }
-
-    private void updateContainerRowHeigth(RowContainer container,
-            double height) {
-        if (height >= 0) {
-            container.setDefaultRowHeight(height);
+        double rowHeight = getState().rowHeight;
+        if (rowHeight >= 0) {
+            getWidget().getEscalator().getHeader()
+                    .setDefaultRowHeight(rowHeight);
+            getWidget().getEscalator().getBody().setDefaultRowHeight(rowHeight);
+            getWidget().getEscalator().getFooter()
+                    .setDefaultRowHeight(rowHeight);
+        } else if (getWidget().isAttached()) {
+            // finally to make sure column sizes have been set before this
+            Scheduler.get()
+                    .scheduleFinally(() -> getWidget().resetSizesFromDom());
         }
     }
 
diff --git a/documentation/components/components-grid.asciidoc b/documentation/components/components-grid.asciidoc
index b19a89cb26..c1d93165a9 100644
--- a/documentation/components/components-grid.asciidoc
+++ b/documentation/components/components-grid.asciidoc
@@ -579,7 +579,7 @@ Column<Person, LocalDateTime> bornColumn =
 [classname]#ComponentRenderer#:: Renders a Vaadin [classname]#Component# in a column. Since components
 are quite complex, the [classname]#ComponentRenderer# comes with possible performance issues.
 To use it efficiently you should use as few nested components as possible. If the components used are
-of a different size than the default row height, [methodname]#Grid.setBodyRowHeight()# can be used to adjust
+of a different size than the default row height, [methodname]#Grid.setRowHeight()# can be used to adjust
 the height of all rows in the Grid.
 
 +
@@ -593,7 +593,7 @@ grid.addComponentColumn(person -> {
       return button;
 });
 // make sure the buttons fit in the cells of the Grid
-grid.setBodyRowHeight(40);
+grid.setRowHeight(40);
 ----
 +
 Components will occasionally be generated again during runtime. If you have a state in your
diff --git a/server/src/main/java/com/vaadin/ui/Grid.java b/server/src/main/java/com/vaadin/ui/Grid.java
index 1aca35d3ec..70e947ccd8 100644
--- a/server/src/main/java/com/vaadin/ui/Grid.java
+++ b/server/src/main/java/com/vaadin/ui/Grid.java
@@ -3012,113 +3012,27 @@ public class Grid<T> extends AbstractListing<T> implements HasComponents,
     }
 
     /**
-     * Sets the height of body, header and footer rows. If -1 (default), the row
-     * height is calculated based on the theme for an empty row before the Grid
-     * is displayed.
+     * Sets the height of a row. If -1 (default), the row height is calculated
+     * based on the theme for an empty row before the Grid is displayed.
      * <p>
      * Note that all header, body and footer rows get the same height if
      * explicitly set. In automatic mode, each section is calculated separately
      * based on an empty row of that type.
-     * 
-     * @see #setBodyRowHeight(double)
-     * @see #setHeaderRowHeight(double)
-     * @see #setFooterRowHeight(double)
      *
      * @param rowHeight
      *            The height of a row in pixels or -1 for automatic calculation
      */
     public void setRowHeight(double rowHeight) {
-        setBodyRowHeight(rowHeight);
-        setHeaderRowHeight(rowHeight);
-        setFooterRowHeight(rowHeight);
-    }
-
-    /**
-     * Sets the height of a body row. If -1 (default), the row height is
-     * calculated based on the theme for an empty row before the Grid is
-     * displayed.
-     * 
-     * @param rowHeight
-     *            The height of a row in pixels or -1 for automatic calculation
-     * @since 8.1.2
-     */
-    public void setBodyRowHeight(double rowHeight) {
-        getState().bodyRowHeight = rowHeight;
-    }
-
-    /**
-     * Sets the height of a header row. If -1 (default), the row height is
-     * calculated based on the theme for an empty row before the Grid is
-     * displayed.
-     *
-     * @param rowHeight
-     *            The height of a row in pixels or -1 for automatic calculation
-     * @since 8.1.2
-     */
-    public void setHeaderRowHeight(double rowHeight) {
-        getState().headerRowHeight = rowHeight;
+        getState().rowHeight = rowHeight;
     }
 
     /**
-     * Sets the height of a footer row. If -1 (default), the row height is
-     * calculated based on the theme for an empty row before the Grid is
-     * displayed.
+     * Returns the currently explicitly set row height or -1 if automatic.
      *
-     * @param rowHeight
-     *            The height of a row in pixels or -1 for automatic calculation
-     * @since 8.1.2
+     * @return explicitly set row height in pixels or -1 if in automatic mode
      */
-    public void setFooterRowHeight(double rowHeight) {
-        getState().footerRowHeight = rowHeight;
-    }
-
-    /**
-     * Returns the current body row height.-1 if row height is in automatic
-     * calculation mode.
-     *
-     * @see #getBodyRowHeight()
-     * @see #getHeaderRowHeight()
-     * @see #getFooterRowHeight()
-     *
-     * @return body row height
-     * @deprecated replaced by three separate row height controls
-     */
-    @Deprecated
     public double getRowHeight() {
-        return getBodyRowHeight();
-    }
-
-    /**
-     * Returns the current body row height. -1 if row height is in automatic
-     * calculation mode.
-     *
-     * @return body row height
-     * @since 8.1.2
-     */
-    public double getBodyRowHeight() {
-        return getState(false).bodyRowHeight;
-    }
-
-    /**
-     * Returns the current header row height. -1 if row height is in automatic
-     * calculation mode.
-     *
-     * @return header row height
-     * @since 8.1.2
-     */
-    public double getHeaderRowHeight() {
-        return getState(false).headerRowHeight;
-    }
-
-    /**
-     * Returns the current footer row height. -1 if row height is in automatic
-     * calculation mode.
-     *
-     * @return footer row height
-     * @since 8.1.2
-     */
-    public double getFooterRowHeight() {
-        return getState(false).footerRowHeight;
+        return getState(false).rowHeight;
     }
 
     /**
diff --git a/shared/src/main/java/com/vaadin/shared/ui/grid/GridState.java b/shared/src/main/java/com/vaadin/shared/ui/grid/GridState.java
index f2ebd903b2..77744a9bb0 100644
--- a/shared/src/main/java/com/vaadin/shared/ui/grid/GridState.java
+++ b/shared/src/main/java/com/vaadin/shared/ui/grid/GridState.java
@@ -147,26 +147,11 @@ public class GridState extends AbstractSingleSelectState {
     public boolean columnReorderingAllowed;
 
     /**
-     * Explicit body row height in pixels for grid rows, or -1 to calculate
+     * Explicit row height in pixels for grid rows, or -1 to calculate
      * automatically based on the theme.
      *
-     * @since 8.1.2
+     * @since 8.1
      */
-    public double bodyRowHeight = -1;
+    public double rowHeight = -1;
 
-    /**
-     * Explicit body row height in pixels for grid rows, or -1 to calculate
-     * automatically based on the theme.
-     *
-     * @since 8.1.2
-     */
-    public double headerRowHeight = -1;
-
-    /**
-     * Explicit body row height in pixels for grid rows, or -1 to calculate
-     * automatically based on the theme.
-     *
-     * @since 8.1.2
-     */
-    public double footerRowHeight = -1;
 }
diff --git a/uitest/src/main/java/com/vaadin/tests/components/grid/basics/GridBasics.java b/uitest/src/main/java/com/vaadin/tests/components/grid/basics/GridBasics.java
index 21eb8b502a..c5b6dbd490 100644
--- a/uitest/src/main/java/com/vaadin/tests/components/grid/basics/GridBasics.java
+++ b/uitest/src/main/java/com/vaadin/tests/components/grid/basics/GridBasics.java
@@ -539,10 +539,6 @@ public class GridBasics extends AbstractTestUIWithLog {
         rowMenu.addItem("Deselect all", menuItem -> {
             grid.getSelectionModel().deselectAll();
         });
-
-        MenuItem rowHeight = rowMenu.addItem("Body Row Height", null);
-        Stream.of(-1, 20, 50, 100).forEach(i -> rowHeight.addItem("" + i,
-                menuItem -> grid.setBodyRowHeight(i)));
     }
 
     private void createSelectionMenu(MenuItem stateItem) {
@@ -644,10 +640,6 @@ public class GridBasics extends AbstractTestUIWithLog {
         headerMenu.addItem("Merge Header Cells [0,6..7]", menuItem -> {
             mergeHeaderСells(0, "6+7", 6, 7);
         });
-
-        MenuItem rowHeight = headerMenu.addItem("Header Row Height", null);
-        Stream.of(-1, 20, 50, 100).forEach(i -> rowHeight.addItem("" + i,
-                menuItem -> grid.setHeaderRowHeight(i)));
     }
 
     private void mergeHeaderСells(int rowIndex, String jointCellText,
@@ -711,10 +703,6 @@ public class GridBasics extends AbstractTestUIWithLog {
         footerMenu.addItem("Merge Footer Cells [0,6..7]", menuItem -> {
             mergeFooterСells(0, "6+7", 6, 7);
         });
-
-        MenuItem rowHeight = footerMenu.addItem("Footer Row Height", null);
-        Stream.of(-1, 20, 50, 100).forEach(i -> rowHeight.addItem("" + i,
-                menuItem -> grid.setFooterRowHeight(i)));
     }
 
     /* DetailsGenerator related things */
diff --git a/uitest/src/test/java/com/vaadin/tests/components/grid/basics/GridRowHeightTest.java b/uitest/src/test/java/com/vaadin/tests/components/grid/basics/GridRowHeightTest.java
index c99c31d4f7..73811bddc7 100644
--- a/uitest/src/test/java/com/vaadin/tests/components/grid/basics/GridRowHeightTest.java
+++ b/uitest/src/test/java/com/vaadin/tests/components/grid/basics/GridRowHeightTest.java
@@ -6,26 +6,6 @@ import org.junit.Test;
 public class GridRowHeightTest extends GridBasicsTest {
 
     @Test
-    public void testSeparateRowHeights() {
-        selectMenuPath("Component", "Footer", "Add default footer row");
-
-        int initialHeaderHeight = getHeaderHeight();
-
-        Assert.assertNotEquals("Header height should not be 50px initially", 50,
-                initialHeaderHeight);
-
-        selectMenuPath("Component", "Body rows", "Body Row Height", "" + 100);
-        selectMenuPath("Component", "Header", "Header Row Height", "" + 20);
-        selectMenuPath("Component", "Footer", "Footer Row Height", "" + 50);
-
-        checkRowHeights(20, 100, 50);
-
-        selectMenuPath("Component", "Header", "Header Row Height", "" + -1);
-
-        checkRowHeights(initialHeaderHeight, 100, 50);
-    }
-
-    @Test
     public void testRowHeights() {
         selectMenuPath("Component", "Footer", "Add default footer row");