OO-1741 remove ? from dummy avatar images, adding anonymous avatar and...

OO-1741 remove ? from dummy avatar images, adding anonymous avatar and removing old avatar images outside the theme

src/main/java/org/olat/user/DisplayPortraitController.java

@@ -67,6 +67,7 @@ public class DisplayPortraitController extends BasicController implements Generi
 	
 	private final boolean useLarge;
 	private final boolean displayPortraitImage;
+	private final boolean isAnonymous;
 	
 	/**
 	 * most common used constructor<br />
@@ -114,6 +115,7 @@ public class DisplayPortraitController extends BasicController implements Generi
 		this.useLarge = useLarge;
 		this.portraitIdent = portraitIdent;
 		this.displayPortraitImage = displayPortraitImage;
+		this.isAnonymous = ureq.getUserSession().getRoles().isGuestOnly();
 
 		mapper = new UserAvatarMapper(useLarge);
 		mapperPath = registerMapper(ureq, mapper);
@@ -150,6 +152,8 @@ public class DisplayPortraitController extends BasicController implements Generi
 				portrait = DisplayPortraitManager.getInstance().getBigPortrait(portraitIdent.getName());
 				if (portrait != null) {
 					myContent.contextPut("portraitCssClass", DisplayPortraitManager.AVATAR_BIG_CSS_CLASS);					
+				} else if (isAnonymous) {
+					myContent.contextPut("portraitCssClass", DisplayPortraitManager.ANONYMOUS_BIG_CSS_CLASS);
 				} else if (gender.equals("-")) {
 					myContent.contextPut("portraitCssClass", DisplayPortraitManager.DUMMY_BIG_CSS_CLASS);
 				} else if (gender.equals("male")) {
@@ -161,6 +165,8 @@ public class DisplayPortraitController extends BasicController implements Generi
 				portrait = DisplayPortraitManager.getInstance().getSmallPortrait(portraitIdent.getName());
 				if (portrait != null) {
 					myContent.contextPut("portraitCssClass", DisplayPortraitManager.AVATAR_SMALL_CSS_CLASS);					
+				} else if (isAnonymous) {
+					myContent.contextPut("portraitCssClass", DisplayPortraitManager.ANONYMOUS_SMALL_CSS_CLASS);
 				} else if (gender.equals("-")) {
 					myContent.contextPut("portraitCssClass", DisplayPortraitManager.DUMMY_SMALL_CSS_CLASS);
 				} else if (gender.equals("male")) {

src/main/java/org/olat/user/DisplayPortraitManager.java

@@ -56,6 +56,8 @@ public class DisplayPortraitManager extends BasicManager implements UserDataDele
 	// The following class names refer to CSS class names in olat.css 
 	public static final String AVATAR_BIG_CSS_CLASS = "o_portrait_avatar";
 	public static final String AVATAR_SMALL_CSS_CLASS = "o_portrait_avatar_small";
+	public static final String ANONYMOUS_BIG_CSS_CLASS = "o_portrait_anonymous";
+	public static final String ANONYMOUS_SMALL_CSS_CLASS = "o_portrait_anonymous_small";
 	public static final String DUMMY_BIG_CSS_CLASS = "o_portrait_dummy";
 	public static final String DUMMY_SMALL_CSS_CLASS = "o_portrait_dummy_small";
 	public static final String DUMMY_FEMALE_BIG_CSS_CLASS = "o_portrait_dummy_female_big";

src/main/webapp/static/themes/light/modules/_various_modules.scss

@@ -234,7 +234,15 @@ ul.o_dropdown {
 	}
 }
 
-/* Dummy user portrait (avatar) display - portrait sizes must match with DisplayPortraitManager.WIDTH_PORTRAIT_SMALL  DisplayPortraitManager.WIDTH_PORTRAIT_BIG */
+/* Dummy user portrait (avatar) display - portrait sizes must match with DisplayPortraitManager.WIDTH_PORTRAIT_SMALL  DisplayPortraitManager.WIDTH_PORTRAIT_BIG
+
+   Dummy is used for registered users which have no personal avatar image. 
+   - dummy is used if gender is not known
+   - dummy_female is used for femal users
+   - dummy_male is used for male users
+   
+   Anonymous is used for guest users and in anonymous chat / forum postings
+*/
 .o_portrait_avatar,
 .o_portrait_dummy,
 .o_portrait_dummy_female_big,
@@ -243,7 +251,7 @@ ul.o_dropdown {
 .o_portrait_dummy                {background-image: url('#{$o-images-path}portrait/dummy.png');}
 .o_portrait_dummy_female_big     {background-image: url('#{$o-images-path}portrait/dummy_female_big.png');}
 .o_portrait_dummy_male_big       {background-image: url('#{$o-images-path}portrait/dummy_male_big.png');}
-.o_portrait_anonymous 			 {background-image: url('#{$o-images-path}portrait/dummy.png'); }
+.o_portrait_anonymous 			 {background-image: url('#{$o-images-path}portrait/anonymous.png'); }
 
 .o_portrait_avatar_small,
 .o_portrait_dummy_small,
@@ -253,7 +261,7 @@ ul.o_dropdown {
 .o_portrait_dummy_small          {background-image: url('#{$o-images-path}portrait/dummy_small.png');}
 .o_portrait_dummy_female_small   {background-image: url('#{$o-images-path}portrait/dummy_female_small.png');}
 .o_portrait_dummy_male_small     {background-image: url('#{$o-images-path}portrait/dummy_male_small.png');}
-.o_portrait_anonymous_small 	 {background-image: url('#{$o-images-path}portrait/dummy_small.png'); } 
+.o_portrait_anonymous_small 	 {background-image: url('#{$o-images-path}portrait/anonymous_small.png'); } 
 
 
 /* Date component, used in info course element, blog etc */