gecko-dev/accessible/tests/mochitest/selectable.js

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JavaScript

/**
* Test selection getter methods of nsIAccessibleSelectable.
*
* @param aIdentifier [in] selectable container accessible
* @param aSelectedChildren [in] array of selected children
*/
function testSelectableSelection(aIdentifier, aSelectedChildren, aMsg)
{
var acc = getAccessible(aIdentifier, [nsIAccessibleSelectable]);
if (!acc)
return;
var msg = aMsg ? aMsg : "";
var len = aSelectedChildren.length;
// getSelectedChildren
var selectedChildren = acc.selectedItems;
is(selectedChildren ? selectedChildren.length : 0, len,
msg + "getSelectedChildren: wrong selected children count for " +
prettyName(aIdentifier));
for (var idx = 0; idx < len; idx++) {
var expectedAcc = getAccessible(aSelectedChildren[idx]);
var actualAcc = selectedChildren.queryElementAt(idx, nsIAccessible);
is(actualAcc, expectedAcc,
msg + "getSelectedChildren: wrong selected child at index " + idx +
" for " + prettyName(aIdentifier) + " { actual : " +
prettyName(actualAcc) + ", expected: " + prettyName(expectedAcc) + "}");
}
// selectedItemCount
is(acc.selectedItemCount, aSelectedChildren.length,
"selectedItemCount: wrong selected children count for " + prettyName(aIdentifier));
// getSelectedItemAt
for (var idx = 0; idx < len; idx++) {
var expectedAcc = getAccessible(aSelectedChildren[idx]);
is(acc.getSelectedItemAt(idx), expectedAcc,
msg + "getSelectedItemAt: wrong selected child at index " + idx + " for " +
prettyName(aIdentifier));
}
// isItemSelected
testIsItemSelected(acc, acc, { value: 0 }, aSelectedChildren, msg);
}
/**
* Test isItemSelected method, helper for testSelectableSelection
*/
function testIsItemSelected(aSelectAcc, aTraversedAcc, aIndexObj, aSelectedChildren, aMsg)
{
var childCount = aTraversedAcc.childCount;
for (var idx = 0; idx < childCount; idx++) {
var child = aTraversedAcc.getChildAt(idx);
var [state, extraState] = getStates(child);
if (state & STATE_SELECTABLE) {
var isSelected = false;
var len = aSelectedChildren.length;
for (var jdx = 0; jdx < len; jdx++) {
if (child == getAccessible(aSelectedChildren[jdx])) {
isSelected = true;
break;
}
}
// isItemSelected
is(aSelectAcc.isItemSelected(aIndexObj.value++), isSelected,
aMsg + "isItemSelected: wrong selected child " + prettyName(child) +
" for " + prettyName(aSelectAcc));
// selected state
testStates(child, isSelected ? STATE_SELECTED : 0, 0,
!isSelected ? STATE_SELECTED : 0 , 0);
continue;
}
testIsItemSelected(aSelectAcc, child, aIndexObj, aSelectedChildren);
}
}