Bug 1136563 - ARIA 1.1: Support role 'switch', r=surkov

accessible/base/ARIAMap.cpp

@@ -540,6 +540,17 @@ static nsRoleMapEntry sWAIRoleMaps[] =
     kGenericAccType,
     kNoReqStates
   },
+  { // switch
+    &nsGkAtoms::_switch,
+    roles::SWITCH,
+    kUseMapRole,
+    eNoValue,
+    eCheckUncheckAction,
+    eNoLiveAttr,
+    kGenericAccType,
+    kNoReqStates,
+    eARIACheckableBool
+  },
   { // tab
     &nsGkAtoms::tab,
     roles::PAGETAB,

accessible/base/Role.h

@@ -785,7 +785,12 @@ enum Role {
    */
   KEY = 129,
 
-  LAST_ROLE = KEY
+  /**
+   * Represent a switch control widget (ARIA role "switch").
+   */
+  SWITCH = 130,
+
+  LAST_ROLE = SWITCH
 };
 
 } // namespace role

accessible/base/RoleMap.h

@@ -1055,3 +1055,11 @@ ROLE(KEY,
      ROLE_SYSTEM_PUSHBUTTON,
      ROLE_SYSTEM_PUSHBUTTON,
      eNameFromSubtreeRule)
+
+ROLE(SWITCH,
+     "switch",
+     ATK_ROLE_TOGGLE_BUTTON,
+     NSAccessibilityCheckBoxRole,
+     ROLE_SYSTEM_CHECKBUTTON,
+     IA2_ROLE_TOGGLE_BUTTON,
+     eNameFromSubtreeRule)

accessible/interfaces/nsIAccessibleRole.idl

@@ -8,7 +8,7 @@
 /**
  * Defines cross platform (Gecko) roles.
  */
-[scriptable, uuid(50db5e86-9a45-4637-a5c3-4ff148c33270)]
+[scriptable, uuid(76ce835f-ef86-47c0-ac7b-e871417f1b6e)]
 interface nsIAccessibleRole : nsISupports
 {
   /**
@@ -778,4 +778,9 @@ interface nsIAccessibleRole : nsISupports
    * A keyboard or keypad key.
    */
   const unsigned long ROLE_KEY = 129;
+
+  /**
+   * A switch control widget.
+   */
+  const unsigned long ROLE_SWITCH = 130;
 };

accessible/mac/mozAccessible.mm

@@ -475,6 +475,9 @@ GetClosestInterestingAccessible(id anObject)
     case roles::DEFINITION:
       return @"AXDefinition";
 
+    case roles::SWITCH:
+      return @"AXSwitch";
+
     default:
       break;
   }

accessible/tests/mochitest/actions/test_aria.html

@@ -85,6 +85,16 @@
           actionName: "select",
           events: CLICK_EVENTS
         },
+        {
+          ID: "switch_unchecked",
+          actionName: "check",
+          events: CLICK_EVENTS
+        },
+        {
+          ID: "switch_checked",
+          actionName: "uncheck",
+          events: CLICK_EVENTS
+        },
         {
           ID: "tab",
           actionName: "switch",
@@ -166,6 +176,10 @@
     <div id="radio" role="radio">Radio</div>
   </div>
 
+  <div id="switch_unchecked" role="switch">Switch</div>
+
+  <div id="switch_checked" role="switch" aria-checked="true">Switch</div>
+
   <div role="tablist">
     <div id="tab" role="tab">Tab</div>
   </div>

accessible/tests/mochitest/events/test_aria_statechange.html

@@ -107,17 +107,28 @@
         new setAttrOfMixedType(aID, "aria-checked", STATE_CHECKED, aValue);
     }
 
+    function buildQueueForAttr(aList, aQueue, aID, aInvokerFunc)
+    {
+      for (var i = 0; i < aList.length; i++) {
+        for (var j = i + 1; j < aList.length; j++) {
+          // XXX: changes from/to "undefined"/"" shouldn't fire state change
+          // events, bug 472142.
+          aQueue.push(new aInvokerFunc(aID, aList[i]));
+          aQueue.push(new aInvokerFunc(aID, aList[j]));
+        }
+      }
+    }
+
     function buildQueueForAttrOfMixedType(aQueue, aID, aInvokerFunc)
     {
       var list = [ "", "undefined", "false", "true", "mixed" ];
-      for (var i = 0; i < list.length; i++) {
-        for (var j = i + 1; j < list.length; j++) {
-          // XXX: changes from/to "undefined"/"" shouldn't fire state change
-          // events, bug 472142.
-          aQueue.push(new aInvokerFunc(aID, list[i]));
-          aQueue.push(new aInvokerFunc(aID, list[j]));
-        }
-      }
+      buildQueueForAttr(list, aQueue, aID, aInvokerFunc);
+    }
+
+    function buildQueueForAttrOfBoolType(aQueue, aID, aInvokerFunc)
+    {
+      var list = [ "", "undefined", "false", "true" ];
+      buildQueueForAttr(list, aQueue, aID, aInvokerFunc);
     }
 
     function doTests()
@@ -135,6 +146,7 @@
       buildQueueForAttrOfMixedType(gQueue, "pressable", setPressed);
       buildQueueForAttrOfMixedType(gQueue, "pressable_native", setPressed);
       buildQueueForAttrOfMixedType(gQueue, "checkable", setChecked);
+      buildQueueForAttrOfBoolType(gQueue, "checkableBool", setChecked);
 
       gQueue.invoke(); // Will call SimpleTest.finish();
     }
@@ -166,6 +178,11 @@
      title="Pressed state is not exposed on a button element with aria-pressed attribute"
     Mozilla Bug 989958
   </a>
+  <a target="_blank"
+     href="https://bugzilla.mozilla.org/show_bug.cgi?id=1136563"
+     title="Support ARIA 1.1 switch role"
+    Mozilla Bug 1136563
+  </a>
 
   <p id="display"></p>
   <div id="content" style="display: none"></div>
@@ -186,5 +203,6 @@
 
   <!-- aria-checked -->
   <div id="checkable" role="checkbox"></div>
+  <div id="checkableBool" role="switch"></div>
 </body>
 </html>

accessible/tests/mochitest/role.js

@@ -70,6 +70,7 @@ const ROLE_SLIDER = nsIAccessibleRole.ROLE_SLIDER;
 const ROLE_SPINBUTTON = nsIAccessibleRole.ROLE_SPINBUTTON;
 const ROLE_STATICTEXT = nsIAccessibleRole.ROLE_STATICTEXT;
 const ROLE_STATUSBAR = nsIAccessibleRole.ROLE_STATUSBAR;
+const ROLE_SWITCH = nsIAccessibleRole.ROLE_SWITCH;
 const ROLE_TABLE = nsIAccessibleRole.ROLE_TABLE;
 const ROLE_TERM = nsIAccessibleRole.ROLE_TERM;
 const ROLE_TEXT_CONTAINER = nsIAccessibleRole.ROLE_TEXT_CONTAINER;

accessible/tests/mochitest/role/test_aria.html

@@ -60,6 +60,7 @@
       testRole("aria_slider", ROLE_SLIDER);
       testRole("aria_spinbutton", ROLE_SPINBUTTON);
       testRole("aria_status", ROLE_STATUSBAR);
+      testRole("aria_switch", ROLE_SWITCH);
       testRole("aria_tab", ROLE_PAGETAB);
       testRole("aria_tablist", ROLE_PAGETABLIST);
       testRole("aria_tabpanel", ROLE_PROPERTYPAGE);
@@ -178,6 +179,11 @@
      href="https://bugzilla.mozilla.org/show_bug.cgi?id=735645">
     Bug 735645
   </a>
+  <a target="_blank"
+     href="https://bugzilla.mozilla.org/show_bug.cgi?id=1136563"
+     title="Support ARIA 1.1 switch role"
+    Bug 1136563
+  </a>
   <p id="display"></p>
   <div id="content" style="display: none"></div>
   <pre id="test">
@@ -225,6 +231,7 @@
   <span id="aria_slider" role="slider"/>
   <span id="aria_spinbutton" role="spinbutton"/>
   <span id="aria_status" role="status"/>
+  <span id="aria_switch" role="switch"/>
   <span id="aria_tab" role="tab"/>
   <span id="aria_tablist" role="tablist"/>
   <span id="aria_tabpanel" role="tabpanel"/>

accessible/tests/mochitest/states/test_aria.html

@@ -92,6 +92,8 @@
       // aria-checked
       testStates("aria_checked_checkbox", STATE_CHECKED);
       testStates("aria_mixed_checkbox", STATE_MIXED);
+      testStates("aria_checked_switch", STATE_CHECKED);
+      testStates("aria_mixed_switch", 0, 0, STATE_MIXED); // unsupported
 
       // test disabled group and all its descendants to see if they are
       // disabled, too. See bug 429285.
@@ -350,6 +352,11 @@
      title="Pressed state is not exposed on a button element with aria-pressed attribute"
     Mozilla Bug 989958
   </a>
+  <a target="_blank"
+     href="https://bugzilla.mozilla.org/show_bug.cgi?id=1136563"
+     title="Support ARIA 1.1 switch role"
+    Mozilla Bug 1136563
+  </a>
 
   <p id="display"></p>
   <div id="content" style="display: none"></div>
@@ -383,6 +390,15 @@
   <div id="aria_mixed_checkbox" role="checkbox" aria-checked="mixed">
     I might agree
   </div>
+
+  <div id="aria_checked_switch" role="switch" aria-checked="true">
+    I am switched on
+  </div>
+
+  <div id="aria_mixed_switch" role="switch" aria-checked="mixed">
+    I am unsupported
+  </div>
+
   <div id="aria_modal" aria-modal="true">modal stuff</div>
   <div id="aria_modal_false" aria-modal="false">non modal stuff</div>div>
   <div id="aria_multiline_textbox" role="textbox" aria-multiline="true"></div>

dom/base/nsGkAtomList.h

@@ -2296,6 +2296,7 @@ GK_ATOM(setsize, "setsize")
 GK_ATOM(spelling, "spelling")
 GK_ATOM(spinbutton, "spinbutton")
 GK_ATOM(status, "status")
+GK_ATOM(_switch, "switch")
 GK_ATOM(tableCellIndex, "table-cell-index")
 GK_ATOM(tablist, "tablist")
 GK_ATOM(textIndent, "text-indent")