implemented auto scaling of leaderboard for autoplay mode

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/autoplay/client/app/PlaceNavigator.java

@@ -2,5 +2,5 @@ package com.sap.sailing.gwt.autoplay.client.app;
 
 public interface PlaceNavigator {
     void goToStart();
-    void goToPlayer(String eventUuidAsString, String leaderboardIdAsNameString);
+    void goToPlayer(String eventUuidAsString, String leaderboardIdAsNameString, String leaderboardZoom);
 }

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/autoplay/client/app/PlaceNavigatorImpl.java

@@ -18,8 +18,8 @@ public class PlaceNavigatorImpl implements PlaceNavigator {
     }
     
     @Override
-    public void goToPlayer(String eventUuidAsString, String leaderboardIdAsNameString) {
-        PlayerPlace playerPlace = new PlayerPlace(eventUuidAsString, leaderboardIdAsNameString);
+    public void goToPlayer(String eventUuidAsString, String leaderboardIdAsNameString, String leaderboardZoom) {
+        PlayerPlace playerPlace = new PlayerPlace(eventUuidAsString, leaderboardIdAsNameString, String.valueOf(leaderboardZoom));
         placeController.goTo(playerPlace); 
     }
 

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/autoplay/client/place/player/AutoPlayController.java

@@ -6,15 +6,23 @@ import java.util.Date;
 import java.util.List;
 import java.util.Map;
 
+import com.google.gwt.core.client.Scheduler;
+import com.google.gwt.core.client.Scheduler.RepeatingCommand;
 import com.google.gwt.dom.client.Style.FontWeight;
+import com.google.gwt.dom.client.Style.Position;
 import com.google.gwt.dom.client.Style.TextAlign;
+import com.google.gwt.event.logical.shared.ResizeEvent;
+import com.google.gwt.event.logical.shared.ResizeHandler;
+import com.google.gwt.user.client.Window;
 import com.google.gwt.user.client.ui.FlowPanel;
 import com.google.gwt.user.client.ui.ScrollPanel;
+import com.google.gwt.user.client.ui.Widget;
 import com.sap.sailing.domain.common.RegattaAndRaceIdentifier;
 import com.sap.sailing.domain.common.dto.FleetDTO;
 import com.sap.sailing.domain.common.dto.LeaderboardDTO;
 import com.sap.sailing.domain.common.dto.RaceColumnDTO;
 import com.sap.sailing.gwt.autoplay.client.shared.header.SAPHeader;
+import com.sap.sailing.gwt.common.client.CSS3Util;
 import com.sap.sailing.gwt.common.client.i18n.TextMessages;
 import com.sap.sailing.gwt.ui.client.CompetitorSelectionModel;
 import com.sap.sailing.gwt.ui.client.ErrorReporter;
@@ -57,6 +65,7 @@ public class AutoPlayController implements RaceTimesInfoProviderListener {
     private LeaderboardDTO leaderboard;
     private final String leaderboardName;
     private final String leaderboardGroupName;
+    private final String leaderboardZoom;
     private LeaderboardSettings leaderboardSettings; 
    
     // raceboard related attributes
@@ -65,15 +74,18 @@ public class AutoPlayController implements RaceTimesInfoProviderListener {
     private boolean showWindChart;
     private final RaceBoardViewConfiguration raceboardViewConfig;
     private final PlayerView playerView;
+    private final int SAP_HEADER_HEIGHT = 80;
+    private Widget currentContentWidget;
     
     public AutoPlayController(SailingServiceAsync sailingService, MediaServiceAsync mediaService, 
-            ErrorReporter errorReporter, String leaderboardGroupName, String leaderboardName, UserAgentDetails userAgent,
+            ErrorReporter errorReporter, String leaderboardGroupName, String leaderboardName, final String leaderboardZoom, UserAgentDetails userAgent,
             long delayToLiveInMillis, boolean showRaceDetails, RaceBoardViewConfiguration raceboardViewConfig, PlayerView playerView) {
         this.raceboardViewConfig = raceboardViewConfig;
         this.sailingService = sailingService;
         this.mediaService = mediaService;
         this.errorReporter = errorReporter;
         this.leaderboardName = leaderboardName;
+        this.leaderboardZoom = leaderboardZoom;
         this.leaderboardGroupName = leaderboardGroupName;
         this.userAgent = userAgent;
         this.showRaceDetails = showRaceDetails;
@@ -95,6 +107,15 @@ public class AutoPlayController implements RaceTimesInfoProviderListener {
 
         raceTimesInfoProvider = new RaceTimesInfoProvider(sailingService, asyncActionsExecutor, errorReporter, new ArrayList<RegattaAndRaceIdentifier>(), 3000l);
         raceTimesInfoProvider.addRaceTimesInfoProviderListener(this);
+        
+        Window.addResizeHandler(new ResizeHandler() {
+            @Override
+            public void onResize(ResizeEvent event) {
+                if(leaderboardZoom != null && leaderboardZoom.equalsIgnoreCase("auto")) {
+                    autoZoomContentWidget();
+                }
+            }
+        });
     }
     
     private LeaderboardPanel createLeaderboardPanel(String leaderboardGroupName, String leaderboardName, boolean showRaceDetails) {
@@ -112,7 +133,8 @@ public class AutoPlayController implements RaceTimesInfoProviderListener {
                 updateRaceTimesInfoProvider();
             }
         };
-        leaderboardPanel.getContentWidget().getElement().getStyle().setProperty("margin", "0 auto");
+//        leaderboardPanel.getContentWidget().getElement().getStyle().setProperty("margin", "0 auto");
+        leaderboardPanel.getContentWidget().getElement().getStyle().setPosition(Position.ABSOLUTE);
         leaderboardPanel.getContentWidget().getElement().getStyle().setFontWeight(FontWeight.BOLD);
         return leaderboardPanel;
     }
@@ -148,10 +170,26 @@ public class AutoPlayController implements RaceTimesInfoProviderListener {
             playerView.clearDockPanel();
             
             SAPHeader sapHeader = new SAPHeader(TextMessages.INSTANCE.leaderboard() +  ": " + leaderboardName);
-            playerView.getDockPanel().addNorth(sapHeader, 80);
+            playerView.getDockPanel().addNorth(sapHeader, SAP_HEADER_HEIGHT);
             
             LeaderboardPanel leaderboardPanel = createLeaderboardPanel(leaderboardGroupName, leaderboardName, showRaceDetails);          
             ScrollPanel leaderboardContentPanel = new ScrollPanel();
+
+            currentContentWidget = leaderboardPanel.getContentWidget();
+            
+            if(leaderboardZoom != null) {
+                if(leaderboardZoom.equalsIgnoreCase("auto")) {
+                    autoZoomContentWidget();
+                } else {
+                    try {
+                        Double zoom = Double.valueOf(leaderboardZoom);
+                        scaleContentWidget(SAP_HEADER_HEIGHT, currentContentWidget, zoom);
+                    } catch (NumberFormatException e) {
+                        // do nothing
+                    }
+                }
+            }
+            
             leaderboardContentPanel.getElement().getStyle().setTextAlign(TextAlign.CENTER);
             leaderboardContentPanel.add(leaderboardPanel);
             playerView.getDockPanel().add(leaderboardContentPanel);
@@ -161,7 +199,55 @@ public class AutoPlayController implements RaceTimesInfoProviderListener {
             leaderboardTimer.setPlayMode(PlayModes.Live);
         }
     }
+
+    private void autoZoomContentWidget() {
+        if(currentContentWidget != null) {
+            Scheduler.get().scheduleFixedPeriod(new RepeatingCommand() {
+                public boolean execute () {
+                    boolean invokeAgain = true;
+                    if(currentContentWidget.getOffsetHeight() > 10) {
+                        scaleContentWidget(SAP_HEADER_HEIGHT, currentContentWidget);
+                        invokeAgain = false;
+                    }
+                    return invokeAgain;
+                }
+              }, 1000);
+        }
+    }
+
+    private void scaleContentWidget(int headerHeight, Widget contentWidget, double scaleFactor, double diffX) {
+        if(scaleFactor > 0.0) {
+            CSS3Util.setProperty(contentWidget.getElement().getStyle(),
+                    "transform", "translateX(" + diffX / 2.0 + "px) scale(" + scaleFactor + ")");
+            CSS3Util.setProperty(contentWidget.getElement().getStyle(), "transformOrigin", "0 0");
+        }
+    }
+
+    private void scaleContentWidget(int headerHeight, Widget contentWidget, double scaleFactor) {
+        int clientWidth = Window.getClientWidth();
+        int contentWidth = contentWidget.getOffsetWidth();
+
+        double diffX = clientWidth - contentWidth * scaleFactor;
+        
+        scaleContentWidget(headerHeight, contentWidget, scaleFactor, diffX);
+    }
     
+    private void scaleContentWidget(int headerHeight, Widget contentWidget) {
+        int clientWidth = Window.getClientWidth();
+        int clientHeight = Window.getClientHeight() - headerHeight;
+
+        int contentWidth = contentWidget.getOffsetWidth();
+        int contentHeight = contentWidget.getOffsetHeight();
+        
+        double scaleFactorX = clientWidth / (double) contentWidth;
+        double scaleFactorY = clientHeight / (double) contentHeight;
+        
+        Double scaleFactor = scaleFactorX > scaleFactorY ? scaleFactorY : scaleFactorX;
+        double diffX = clientWidth - contentWidth * scaleFactor;
+
+        scaleContentWidget(headerHeight, contentWidget, scaleFactor, diffX);
+    }
+     
     private void showRaceBoard() {
         if (activeTvView != AutoPlayModes.Raceboard) {
             playerView.clearDockPanel();

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/autoplay/client/place/player/PlayerActivity.java

@@ -45,8 +45,8 @@ public class PlayerActivity extends AbstractActivity implements ErrorReporter {
                 panel.setWidget(view.asWidget());
 
                 autoPlayController = new AutoPlayController(clientFactory.getSailingService(), clientFactory.getMediaService(),
-                        PlayerActivity.this, /*leaderboardGroupName*/ "" , playerPlace.getLeaderboardIdAsNameString(), userAgent, delayToLiveMillis,
-                        showRaceDetails, readRaceboardConfiguration, view);
+                        PlayerActivity.this, /*leaderboardGroupName*/ "" , playerPlace.getLeaderboardIdAsNameString(), playerPlace.getLeaderboardZoomAsString(),
+                        userAgent, delayToLiveMillis, showRaceDetails, readRaceboardConfiguration, view);
                 autoPlayController.updatePlayMode(AutoPlayModes.Leaderboard);
             }
 

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/autoplay/client/place/player/PlayerPlace.java

@@ -6,20 +6,24 @@ import com.sap.sailing.gwt.common.client.AbstractBasePlace;
 public class PlayerPlace extends AbstractBasePlace {
     private final String eventUuidAsString;
     private final String leaderboardIdAsNameString;
+    private final String leaderboardZoomAsString;
     
     private final static String PARAM_EVENTID = "eventId"; 
     private final static String PARAM_LEADEROARD_NAME = "leaderboardName"; 
+    private final static String PARAM_LEADEROARD_ZOOM = "leaderboardZoom"; 
     
     public PlayerPlace(String url) {
         super(url);
         eventUuidAsString = getParameter(PARAM_EVENTID);
         leaderboardIdAsNameString = getParameter(PARAM_LEADEROARD_NAME);
+        leaderboardZoomAsString = getParameter(PARAM_LEADEROARD_ZOOM);
     }
 
-    public PlayerPlace(String eventUuidAsString, String leaderboardIdAsNameString) {
-        super(PARAM_EVENTID, eventUuidAsString, PARAM_LEADEROARD_NAME, leaderboardIdAsNameString);
+    public PlayerPlace(String eventUuidAsString, String leaderboardIdAsNameString, String leaderboardZoomAsString) {
+        super(PARAM_EVENTID, eventUuidAsString, PARAM_LEADEROARD_NAME, leaderboardIdAsNameString, PARAM_LEADEROARD_ZOOM, leaderboardZoomAsString);
         this.eventUuidAsString = eventUuidAsString;
         this.leaderboardIdAsNameString = leaderboardIdAsNameString;
+        this.leaderboardZoomAsString = leaderboardZoomAsString;
     }
 
     public String getEventUuidAsString() {
@@ -30,6 +34,10 @@ public class PlayerPlace extends AbstractBasePlace {
         return leaderboardIdAsNameString;
     }
 
+    public String getLeaderboardZoomAsString() {
+        return leaderboardZoomAsString;
+    }
+
     public static class Tokenizer implements PlaceTokenizer<PlayerPlace> {
         @Override
         public String getToken(PlayerPlace place) {

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/autoplay/client/place/start/DesktopStartView.java

@@ -8,12 +8,15 @@ import com.google.gwt.dom.client.DivElement;
 import com.google.gwt.dom.client.Style.Visibility;
 import com.google.gwt.event.dom.client.ChangeEvent;
 import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.event.logical.shared.ValueChangeEvent;
 import com.google.gwt.uibinder.client.UiBinder;
 import com.google.gwt.uibinder.client.UiField;
 import com.google.gwt.uibinder.client.UiHandler;
 import com.google.gwt.user.client.ui.Button;
+import com.google.gwt.user.client.ui.CheckBox;
 import com.google.gwt.user.client.ui.Composite;
 import com.google.gwt.user.client.ui.ListBox;
+import com.google.gwt.user.client.ui.TextBox;
 import com.google.gwt.user.client.ui.Widget;
 import com.sap.sailing.gwt.autoplay.client.app.PlaceNavigator;
 import com.sap.sailing.gwt.common.client.SharedResources;
@@ -29,8 +32,12 @@ public class DesktopStartView extends Composite implements StartView {
 
     @UiField(provided=true) ListBox eventSelectionBox;
     @UiField(provided=true) ListBox leaderboardSelectionBox;
+    @UiField CheckBox leaderboardAutoZoomBox;
+    @UiField TextBox leaderboardZoomBox;
     @UiField Button startAutoPlayButton;
     @UiField DivElement leaderboardSelectionDiv;
+    @UiField DivElement leaderboardZoomDiv;
+    @UiField DivElement leaderboardAutoZoomDiv;
     
     private final PlaceNavigator navigator;
     private final List<EventDTO> events;
@@ -44,7 +51,10 @@ public class DesktopStartView extends Composite implements StartView {
         leaderboardSelectionBox = new ListBox(false);
         
         initWidget(uiBinder.createAndBindUi(this));
-        
+
+        leaderboardAutoZoomBox.setValue(true);
+        leaderboardZoomBox.setEnabled(false);
+
         leaderboardSelectionDiv.getStyle().setVisibility(Visibility.HIDDEN);
         startAutoPlayButton.setEnabled(false);
         startAutoPlayButton.addStyleName(SharedResources.INSTANCE.mainCss().buttoninactive());
@@ -92,11 +102,21 @@ public class DesktopStartView extends Composite implements StartView {
     void startAutoPlayClicked(ClickEvent event) {
         EventDTO selectedEvent = getSelectedEvent();
         String selectedLeaderboardName = getSelectedLeaderboardName();
+        String leaderboardZoom = getLeaderboardZoom();
         if(selectedEvent != null && selectedLeaderboardName != null) {
-            navigator.goToPlayer(selectedEvent.id.toString(), selectedLeaderboardName);
+            navigator.goToPlayer(selectedEvent.id.toString(), selectedLeaderboardName, leaderboardZoom);
         }
     }
 
+    @UiHandler("leaderboardAutoZoomBox")
+    public void onLeaderboardAutoZoomClicked(ValueChangeEvent<Boolean> ev) {
+        leaderboardZoomBox.setEnabled(!leaderboardAutoZoomBox.getValue());
+    }
+    
+    private String getLeaderboardZoom() {
+        return leaderboardAutoZoomBox.getValue() == true ? "auto" : String.valueOf(leaderboardZoomBox.getValue());
+    }
+
     private String getSelectedLeaderboardName() {
         String result = null;
         int selectedIndex = leaderboardSelectionBox.getSelectedIndex();

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/autoplay/client/place/start/DesktopStartView.ui.xml

@@ -27,6 +27,22 @@
 				<g:ListBox ui:field="leaderboardSelectionBox" />
 	        </div>
 		</div>
+		<div ui:field="leaderboardAutoZoomDiv" class="{res.mainCss.grid}" style="padding-bottom:1em;">
+			<div class="{res.mediaCss.small2} {res.mediaCss.columns}">
+			    <span>Leaderboard Auto-Zoom:</span>
+	        </div>
+		    <div class="{res.mediaCss.small2} {res.mediaCss.columns}">
+				<g:CheckBox ui:field="leaderboardAutoZoomBox" />
+	        </div>
+		</div>
+		<div ui:field="leaderboardZoomDiv" class="{res.mainCss.grid}" style="padding-bottom:1em;">
+			<div class="{res.mediaCss.small2} {res.mediaCss.columns}">
+			    <span>Leaderboard Zoom-Factor:</span>
+	        </div>
+		    <div class="{res.mediaCss.small2} {res.mediaCss.columns}">
+				<g:TextBox ui:field="leaderboardZoomBox" />
+	        </div>
+		</div>
 		<div class="{res.mainCss.grid}">
 			<div class="{res.mediaCss.small2} {res.mediaCss.columns}">
 			    &nbsp;

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/common/client/CSS3Util.java

@@ -0,0 +1,61 @@
+package com.sap.sailing.gwt.common.client;
+
+import com.google.gwt.dom.client.Style;
+
+public class CSS3Util {
+     public static void setProperty(Style style, String baseCamelCasePropertyName, String value) {
+        for (String browserTypePrefix : getBrowserTypePrefixes()) {
+            style.setProperty(getBrowserSpecificPropertyName(browserTypePrefix, baseCamelCasePropertyName), value);
+        }
+    }
+
+     public static void setDashedProperty(Style style, String baseCamelCasePropertyName, String value) {
+         for (String browserTypePrefix : getBrowserTypePrefixes()) {
+             style.setProperty(getBrowserSpecificDashedPropertyName(browserTypePrefix, baseCamelCasePropertyName), value);
+         }
+     }
+
+    /**
+     * @return the prefixes required for new CSS3-style elements such as "transition" or "@keyframe", including the
+     *         empty string, "moz" and "webkit" as well as others
+     */
+    private static String[] getBrowserTypePrefixes() {
+        return new String[] { "", /* Firefox */ "moz", /* IE */ "ms", /* Opera */ "o", /* Chrome and Mobile */ "webkit" };
+    }
+    
+    /**
+     * Converts something like "transformOrigin" to "-<code>browserType</code>-transform-origin"
+     * 
+     * @param browserType
+     *            a browser type string as received from {@link #getBrowserTypePrefixes()}. If empty or null, the
+     *            original property name is returned unchanged
+     * @param camelCaseString
+     *            the original camel-cased property name, such as "transformOrigin"
+     */
+    public static String getBrowserSpecificDashedPropertyName(String browserType, String camelCaseString) {
+        StringBuilder result = new StringBuilder();
+        if (browserType != null && !browserType.isEmpty()) {
+            result.append('-');
+            result.append(browserType);
+            result.append('-');
+        }
+        for (int i=0; i<camelCaseString.length(); i++) {
+            final char c = camelCaseString.charAt(i);
+            if (Character.isUpperCase(c)) {
+                result.append('-');
+            }
+            result.append(Character.toLowerCase(c));
+        }
+        return result.toString();
+    }
+
+    public static String getBrowserSpecificPropertyName(String browserType, String basePropertyName) {
+        final String result;
+        if (browserType == null || browserType.isEmpty()) {
+                result = basePropertyName;
+        } else {
+                result = browserType+basePropertyName.substring(0, 1).toUpperCase()+basePropertyName.substring(1);
+        }
+        return result;
+    }
+}