docs: elm: fill gaps in prefs, radio, route, slider and spinner eo file docs

src/lib/elementary/elm_prefs.eo

@@ -5,6 +5,7 @@ type Elm_Prefs_Reset_Mode: __undefined_type; [[Elementary preferences reset mode
 
 class Elm.Prefs (Elm.Widget, Efl.File)
 {
+   [[Elementary preferences class]]
    legacy_prefix: elm_prefs;
    eo_prefix: elm_obj_prefs;
    event_prefix: elm_prefs;
@@ -150,7 +151,7 @@ class Elm.Prefs (Elm.Widget, Efl.File)
 
          return: bool; [[$true, on success, $false otherwise]]
          params {
-            @in name: string; [[the name of the SWALLOW item (as declared in the prefs collection)]]
+            @in name: string; [[The name of the SWALLOW item (as declared in the prefs collection)]]
             @in child: Efl.Canvas.Object; [[The object to occupy the item]]
          }
       }
@@ -184,7 +185,7 @@ class Elm.Prefs (Elm.Widget, Efl.File)
 
          return: Efl.Canvas.Object; [[The unswallowed object, or NULL on errors]]
          params {
-            @in name: string; [[the name of the SWALLOW item (as declared in the prefs collection)]]
+            @in name: string; [[The name of the SWALLOW item (as declared in the prefs collection)]]
          }
       }
       item_visible_set {
@@ -221,12 +222,11 @@ class Elm.Prefs (Elm.Widget, Efl.File)
       Elm.Widget.focus_next;
    }
    events {
-      page,changed; [[s]]
-      page,saved; [[s]]
-      page,reset; [[s]]
-      page,loaded; [[s]]
-      item,changed; [[s]]
-      action; [[ss]]
+      page,changed; [[Called when page changed]]
+      page,saved; [[Called when page was saved]]
+      page,reset; [[Called when page was reset]]
+      page,loaded; [[Called when page got loaded]]
+      item,changed; [[Called when item changed]]
+      action; [[Called when action was done]]
    }
-
 }

src/lib/elementary/elm_radio.eo

@@ -1,5 +1,6 @@
 class Elm.Radio (Elm.Check, Elm.Interface.Atspi_Widget_Action)
 {
+   [[Elementary radio class]]
    legacy_prefix: elm_radio;
    eo_prefix: elm_obj_radio;
    event_prefix: elm_radio;
@@ -88,7 +89,6 @@ class Elm.Radio (Elm.Check, Elm.Interface.Atspi_Widget_Action)
       Elm.Interface.Atspi_Widget_Action.elm_actions.get;
    }
    events {
-      changed;
+      changed; [[Called when radio changed]]
    }
-
 }

src/lib/elementary/elm_route.eo

@@ -1,14 +1,15 @@
 class Elm.Route (Elm.Widget)
 {
+   [[Elementary route class]]
    legacy_prefix: elm_route;
    eo_prefix: elm_obj_route;
    methods {
       @property emap {
          set {
-            [[No description supplied by the EAPI.]]
+            [[Set map widget for this route]]
          }
          values {
-            emap: void_ptr;
+            emap: void_ptr; [[Elementary map widget]]
          }
       }
       @property longitude_min_max {
@@ -45,5 +46,4 @@ class Elm.Route (Elm.Widget)
       Efl.Canvas.Group.group_del;
       Elm.Widget.theme_apply;
    }
-
 }

src/lib/elementary/elm_slider.eo

@@ -6,6 +6,7 @@ class Elm.Slider (Elm.Layout, Efl.Ui.Progress,
                   Elm.Interface.Atspi.Value,
                   Elm.Interface.Atspi_Widget_Action)
 {
+   [[Elementary slider class]]
    legacy_prefix: elm_slider;
    eo_prefix: elm_obj_slider;
    event_prefix: elm_slider;
@@ -96,7 +97,7 @@ class Elm.Slider (Elm.Layout, Efl.Ui.Progress,
             [[Get whether the indicator of the slider is set or not.]]
          }
          values {
-            flag: bool;
+            flag: bool; [[$true if indicator is shown on focus, $false otherwise]]
          }
       }
       @property step {
@@ -152,7 +153,7 @@ class Elm.Slider (Elm.Layout, Efl.Ui.Progress,
          set { }
          get { }
          values {
-            enable: bool;
+            enable: bool; [[$true if two indicators are enabled, $false otherwise]]
          }
       }
       @property range {
@@ -163,8 +164,8 @@ class Elm.Slider (Elm.Layout, Efl.Ui.Progress,
          set { }
          get { }
          values {
-            from: double; [[range minimum value]]
-            to: double; [[range maximum value]]
+            from: double; [[Range minimum value]]
+            to: double; [[Range maximum value]]
          }
       }
    }
@@ -194,10 +195,9 @@ class Elm.Slider (Elm.Layout, Efl.Ui.Progress,
       Elm.Interface.Atspi_Widget_Action.elm_actions.get;
    }
    events {
-      changed;
-      delay,changed;
-      slider,drag,start;
-      slider,drag,stop;
+      changed; [[Called when slider changed]]
+      delay,changed; [[Called when delay changed]]
+      slider,drag,start; [[Called when slider drag started]]
+      slider,drag,stop; [[Called when slider drag stopped]]
    }
-
 }

src/lib/elementary/elm_spinner.eo

@@ -1,6 +1,7 @@
 class Elm.Spinner (Elm.Layout, Efl.Ui.Spin,
                    Elm.Interface.Atspi.Value, Elm.Interface.Atspi_Widget_Action)
 {
+   [[Elementary spinner class]]
    legacy_prefix: elm_spinner;
    eo_prefix: elm_obj_spinner;
    event_prefix: elm_spinner;
@@ -168,9 +169,9 @@ class Elm.Spinner (Elm.Layout, Efl.Ui.Spin,
       Elm.Interface.Atspi_Widget_Action.elm_actions.get;
    }
    events {
-      changed;
-      delay,changed;
-      spinner,drag,start;
-      spinner,drag,stop;
+      changed; [[Called when spinner changed]]
+      delay,changed; [[Called when spinner delay changed]]
+      spinner,drag,start; [[Called when spinner drag started]]
+      spinner,drag,stop; [[Called when spinner drag stopped]]
    }
 }