The Tor Browser: accessible/tests/mochitest/attributes.js@7e26c7da4463 (annotated)

accessible/tests/mochitest/attributes.js@7e26c7da4463 (annotated)

accessible/tests/mochitest/attributes.js

Wed, 31 Dec 2014 06:55:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:55:50 +0100
changeset 2: 7e26c7da4463
permissions: -rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

 ////////////////////////////////////////////////////////////////////////////////
 // Object attributes.
 /**
  * Test object attributes.
  *
  * @param aAccOrElmOrID         [in] the accessible identifier
  * @param aAttrs                [in] the map of expected object attributes
  *                              (name/value pairs)
  * @param aSkipUnexpectedAttrs  [in] points this function doesn't fail if
  *                              unexpected attribute is encountered
  */
 function testAttrs(aAccOrElmOrID, aAttrs, aSkipUnexpectedAttrs)
 {
   testAttrsInternal(aAccOrElmOrID, aAttrs, aSkipUnexpectedAttrs);
 }
 /**
  * Test object attributes that must not be present.
  *
  * @param aAccOrElmOrID         [in] the accessible identifier
  * @param aAbsentAttrs          [in] map of attributes that should not be
  *                              present (name/value pairs)
  */
 function testAbsentAttrs(aAccOrElmOrID, aAbsentAttrs)
 {
   testAttrsInternal(aAccOrElmOrID, {}, true, aAbsentAttrs);
 }
 /**
  * Test CSS based object attributes.
  */
 function testCSSAttrs(aID)
 {
   var node = document.getElementById(aID);
   var computedStyle = document.defaultView.getComputedStyle(node, "");
   var attrs = {
     "display": computedStyle.display,
     "text-align": computedStyle.textAlign,
     "text-indent": computedStyle.textIndent,
     "margin-left": computedStyle.marginLeft,
     "margin-right": computedStyle.marginRight,
     "margin-top": computedStyle.marginTop,
     "margin-bottom": computedStyle.marginBottom
   };
   testAttrs(aID, attrs, true);
 }
 /**
  * Test the accessible that it doesn't have CSS-based object attributes.
  */
 function testAbsentCSSAttrs(aID)
 {
   var attrs = {
     "display": "",
     "text-align": "",
     "text-indent": "",
     "margin-left": "",
     "margin-right": "",
     "margin-top": "",
     "margin-bottom": ""
   };
   testAbsentAttrs(aID, attrs);
 }
 /**
  * Test group object attributes (posinset, setsize and level) and
  * nsIAccessible::groupPosition() method.
  *
  * @param aAccOrElmOrID  [in] the ID, DOM node or accessible
  * @param aPosInSet      [in] the value of 'posinset' attribute
  * @param aSetSize       [in] the value of 'setsize' attribute
  * @param aLevel         [in, optional] the value of 'level' attribute
  */
 function testGroupAttrs(aAccOrElmOrID, aPosInSet, aSetSize, aLevel)
 {
   var acc = getAccessible(aAccOrElmOrID);
   var levelObj = {}, posInSetObj = {}, setSizeObj = {};
   acc.groupPosition(levelObj, setSizeObj, posInSetObj);
   if (aPosInSet && aSetSize) {
     is(posInSetObj.value, aPosInSet,
        "Wrong group position (posinset) for " + prettyName(aAccOrElmOrID));
     is(setSizeObj.value, aSetSize,
        "Wrong size of the group (setsize) for " + prettyName(aAccOrElmOrID));
     var attrs = {
       "posinset": String(aPosInSet),
       "setsize": String(aSetSize)
     };
     testAttrs(aAccOrElmOrID, attrs, true);
   }
   if (aLevel) {
     is(levelObj.value, aLevel,
        "Wrong group level for " + prettyName(aAccOrElmOrID));
     var attrs = { "level" : String(aLevel) };
     testAttrs(aAccOrElmOrID, attrs, true);
   }
 }
 ////////////////////////////////////////////////////////////////////////////////
 // Text attributes.
 /**
  * Test text attributes.
  *
  * @param aID                   [in] the ID of DOM element having text
  *                              accessible
  * @param aOffset               [in] the offset inside text accessible to fetch
  *                              text attributes
  * @param aAttrs                [in] the map of expected text attributes
  *                              (name/value pairs) exposed at the offset
  * @param aDefAttrs             [in] the map of expected text attributes
  *                              (name/value pairs) exposed on hyper text
  *                              accessible
  * @param aStartOffset          [in] expected start offset where text attributes
  *                              are applied
  * @param aEndOffset            [in] expected end offset where text attribute
  *                              are applied
  * @param aSkipUnexpectedAttrs  [in] points the function doesn't fail if
  *                              unexpected attribute is encountered
  */
 function testTextAttrs(aID, aOffset, aAttrs, aDefAttrs,
                        aStartOffset, aEndOffset, aSkipUnexpectedAttrs)
 {
   var accessible = getAccessible(aID, [nsIAccessibleText]);
   if (!accessible)
     return;
   var startOffset = { value: -1 };
   var endOffset = { value: -1 };
   // do not include attributes exposed on hyper text accessbile
   var attrs = getTextAttributes(aID, accessible, false, aOffset,
                                 startOffset, endOffset);
   if (!attrs)
     return;
   var errorMsg = " for " + aID + " at offset " + aOffset;
   is(startOffset.value, aStartOffset, "Wrong start offset" + errorMsg);
   is(endOffset.value, aEndOffset, "Wrong end offset" + errorMsg);
   compareAttrs(errorMsg, attrs, aAttrs, aSkipUnexpectedAttrs);
   // include attributes exposed on hyper text accessbile
   var expectedAttrs = {};
   for (var name in aAttrs)
     expectedAttrs[name] = aAttrs[name];
   for (var name in aDefAttrs) {
     if (!(name in expectedAttrs))
       expectedAttrs[name] = aDefAttrs[name];
   }
   attrs = getTextAttributes(aID, accessible, true, aOffset,
                             startOffset, endOffset);
   if (!attrs)
     return;
   compareAttrs(errorMsg, attrs, expectedAttrs, aSkipUnexpectedAttrs);
 }
 /**
  * Test default text attributes.
  *
  * @param aID                   [in] the ID of DOM element having text
  *                              accessible
  * @param aDefAttrs             [in] the map of expected text attributes
  *                              (name/value pairs)
  * @param aSkipUnexpectedAttrs  [in] points the function doesn't fail if
  *                              unexpected attribute is encountered
  */
 function testDefaultTextAttrs(aID, aDefAttrs, aSkipUnexpectedAttrs)
 {
   var accessible = getAccessible(aID, [nsIAccessibleText]);
   if (!accessible)
     return;
   var defAttrs = null;
   try{
     defAttrs = accessible.defaultTextAttributes;
   } catch (e) {
   }
   if (!defAttrs) {
     ok(false, "Can't get default text attributes for " + aID);
     return;
   }
   var errorMsg = ". Getting default text attributes for " + aID;
   compareAttrs(errorMsg, defAttrs, aDefAttrs, aSkipUnexpectedAttrs);
 }
 /**
  * Test text attributes for wrong offset.
  */
 function testTextAttrsWrongOffset(aID, aOffset)
 {
   var res = false;
   try {
   var s = {}, e = {};
   var acc = getAccessible(ID, [nsIAccessibleText]);
     acc.getTextAttributes(false, 157, s, e);
   } catch (e) {
     res = true;
   }
   ok(res,
      "text attributes are calculated successfully at wrong offset " + aOffset + " for " + prettyName(aID));
 }
 const kNormalFontWeight =
   function equalsToNormal(aWeight) { return aWeight <= 400 ; }
 const kBoldFontWeight =
   function equalsToBold(aWeight) { return aWeight > 400; }
 // The pt font size of the input element can vary by Linux distro.
 const kInputFontSize = WIN ?
   "10pt" : (MAC ? "8pt" : function() { return true; });
 const kAbsentFontFamily =
   function(aFontFamily) { return aFontFamily != "sans-serif"; }
 const kInputFontFamily =
   function(aFontFamily) { return aFontFamily != "sans-serif"; }
 const kMonospaceFontFamily =
   function(aFontFamily) { return aFontFamily != "monospace"; }
 const kSansSerifFontFamily =
   function(aFontFamily) { return aFontFamily != "sans-serif"; }
 const kSerifFontFamily =
   function(aFontFamily) { return aFontFamily != "serif"; }
 const kCursiveFontFamily = LINUX ? "DejaVu Serif" : "Comic Sans MS";
 /**
  * Return used font from the given computed style.
  */
 function fontFamily(aComputedStyle)
 {
   var name = aComputedStyle.fontFamily;
   switch (name) {
     case "monospace":
       return kMonospaceFontFamily;
     case "sans-serif":
       return kSansSerifFontFamily;
     case "serif":
       return kSerifFontFamily;
     default:
       return name;
   }
 }
 /**
  * Build an object of default text attributes expected for the given accessible.
  *
  * @param aID          [in] identifier of accessible
  * @param aFontSize    [in] font size
  * @param aFontWeight  [in, optional] kBoldFontWeight or kNormalFontWeight,
  *                      default value is kNormalFontWeight
  */
 function buildDefaultTextAttrs(aID, aFontSize, aFontWeight, aFontFamily)
 {
   var elm = getNode(aID);
   var computedStyle = document.defaultView.getComputedStyle(elm, "");
   var bgColor = computedStyle.backgroundColor == "transparent" ?
     "rgb(255, 255, 255)" : computedStyle.backgroundColor;
   var defAttrs = {
     "font-style": computedStyle.fontStyle,
     "font-size": aFontSize,
     "background-color": bgColor,
     "font-weight": aFontWeight ? aFontWeight : kNormalFontWeight,
     "color": computedStyle.color,
     "font-family": aFontFamily ? aFontFamily : fontFamily(computedStyle),
     "text-position": computedStyle.verticalAlign
   };
   return defAttrs;
 }
 ////////////////////////////////////////////////////////////////////////////////
 // Private.
 function getTextAttributes(aID, aAccessible, aIncludeDefAttrs, aOffset,
                            aStartOffset, aEndOffset)
 {
   // This function expects the passed in accessible to already be queried for
   // nsIAccessibleText.
   var attrs = null;
   try {
     attrs = aAccessible.getTextAttributes(aIncludeDefAttrs, aOffset,
                                           aStartOffset, aEndOffset);
   } catch (e) {
   }
   if (attrs)
     return attrs;
   ok(false, "Can't get text attributes for " + aID);
   return null;
 }
 function testAttrsInternal(aAccOrElmOrID, aAttrs, aSkipUnexpectedAttrs,
                    aAbsentAttrs)
 {
   var accessible = getAccessible(aAccOrElmOrID);
   if (!accessible)
     return;
   var attrs = null;
   try {
     attrs = accessible.attributes;
   } catch (e) { }
   if (!attrs) {
     ok(false, "Can't get object attributes for " + prettyName(aAccOrElmOrID));
     return;
   }
   var errorMsg = " for " + prettyName(aAccOrElmOrID);
   compareAttrs(errorMsg, attrs, aAttrs, aSkipUnexpectedAttrs, aAbsentAttrs);
 }
 function compareAttrs(aErrorMsg, aAttrs, aExpectedAttrs, aSkipUnexpectedAttrs,
                       aAbsentAttrs)
 {
   // Check if all obtained attributes are expected and have expected value.
   var enumerate = aAttrs.enumerate();
   while (enumerate.hasMoreElements()) {
     var prop = enumerate.getNext().QueryInterface(nsIPropertyElement);
     if (!(prop.key in aExpectedAttrs)) {
       if (!aSkipUnexpectedAttrs)
         ok(false, "Unexpected attribute '" + prop.key + "' having '" +
            prop.value + "'" + aErrorMsg);
     } else {
       var msg = "Attribute '" + prop.key + "' has wrong value" + aErrorMsg;
       var expectedValue = aExpectedAttrs[prop.key];
       if (typeof expectedValue == "function")
         ok(expectedValue(prop.value), msg);
       else
         is(prop.value, expectedValue, msg);
     }
   }
   // Check if all expected attributes are presented.
   for (var name in aExpectedAttrs) {
     var value = "";
     try {
       value = aAttrs.getStringProperty(name);
     } catch(e) { }
     if (!value)
       ok(false,
          "There is no expected attribute '" + name + "' " + aErrorMsg);
   }
   // Check if all unexpected attributes are absent.
   if (aAbsentAttrs) {
     for (var name in aAbsentAttrs) {
       var wasFound = false;
       var enumerate = aAttrs.enumerate();
       while (enumerate.hasMoreElements()) {
         var prop = enumerate.getNext().QueryInterface(nsIPropertyElement);
         if (prop.key == name)
           wasFound = true;
       }
     }
     ok(!wasFound,
        "There is an unexpected attribute '" + name + "' " + aErrorMsg);
   }
 }