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Fix computation of input[type="image"] text properties (fix #279) #307

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Fix computation of input[type="image"] text properties (fix #279) #307

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19 changes: 4 additions & 15 deletions src/js/Properties.js
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Original file line number Diff line number Diff line change
Expand Up @@ -508,7 +508,7 @@ axs.properties.getTextFromHostLanguageAttributes = function(element,
existingComputedname,
recursive) {
var computedName = existingComputedname;
if (axs.browserUtils.matchSelector(element, 'img') && element.hasAttribute('alt')) {
if (axs.browserUtils.matchSelector(element, 'img,input[type="image"]') && element.hasAttribute('alt')) {
var altValue = {};
altValue.type = 'string';
altValue.valid = true;
Expand All @@ -520,7 +520,7 @@ axs.properties.getTextFromHostLanguageAttributes = function(element,
textAlternatives['alt'] = altValue;
}

var controlsSelector = ['input:not([type="hidden"]):not([disabled])',
var controlsSelector = ['input:not([type="hidden"]):not([type="image"]):not([disabled])',
'select:not([disabled])',
'textarea:not([disabled])',
'button:not([disabled])',
Expand Down Expand Up @@ -579,18 +579,7 @@ axs.properties.getTextFromHostLanguageAttributes = function(element,
computedName = labelWrappedValue.text;
textAlternatives['labelWrapped'] = labelWrappedValue;
}
// If all else fails input of type image can fall back to its alt text
if (axs.browserUtils.matchSelector(element, 'input[type="image"]') && element.hasAttribute('alt')) {
var altValue = {};
altValue.type = 'string';
altValue.valid = true;
altValue.text = element.getAttribute('alt');
if (computedName)
altValue.unused = true;
else
computedName = altValue.text;
textAlternatives['alt'] = altValue;
}

if (!Object.keys(textAlternatives).length)
textAlternatives['noLabel'] = true;
}
Expand Down Expand Up @@ -623,7 +612,7 @@ axs.properties.getTextProperties = function(node) {

if (Object.keys(textProperties).length == 0) {
/** @type {Element} */ var element = axs.dom.asElement(node);
if (element && axs.browserUtils.matchSelector(element, 'img')) {
if (element && axs.browserUtils.matchSelector(element, 'img,input[type="image"]')) {
var altValue = {};
altValue.valid = false;
altValue.errorMessage = 'No alt value provided';
Expand Down
14 changes: 14 additions & 0 deletions test/js/properties-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -285,3 +285,17 @@ test('Image with no text alternative', function() {
equal('computedText' in textProperties, true, 'computedText in textProperties');
equal(textProperties.computedText, 'smile.jpg');
});

test('Input type image with no text alternative', function() {
var fixture = document.getElementById('qunit-fixture');
var input = fixture.appendChild(document.createElement('input'));
input.type = 'image';
input.src = 'smile.jpg';
var textProperties = axs.properties.getTextProperties(input);
equal('alt' in textProperties, true, 'alt in textProperties');
equal(textProperties.alt.valid, false, 'alt is not valid');
equal('filename' in textProperties, true, 'filename in textProperties');
equal(textProperties.filename.text, 'smile.jpg');
equal('computedText' in textProperties, true, 'computedText in textProperties');
equal(textProperties.computedText, 'smile.jpg');
});