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112 lines
4.0 KiB
JavaScript
112 lines
4.0 KiB
JavaScript
/**
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* Tests an accessible and its children.
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* The accessible is one of the following:
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* - HTML:select (ROLE_COMBOBOX)
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* - HTML:select @size (ROLE_LIST)
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* - HTML:label containing either of the above (ROLE_LABEL)
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*
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* @param aID The ID of the base element to test.
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* @param aNames The array of expected names for the accessible and
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* its children.
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* @param aRoles The array of expected roles for the accessible and
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* its children.
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* @param aStates The array of states to test for on each accessible.
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* @param aUndesiredStates Array of states we don't want to have for each
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* accessible.
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*
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* @note Each of the three arrays must have an equal number of elements. The
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* order of elements corresponds to the order in which the tree is walked from
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* the base accessible downwards.
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*/
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function testSelect(aID, aNames, aRoles, aStates, aUndesiredStates)
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{
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// used to walk the tree starting at the aID's accessible.
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var acc = getAccessible(aID);
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if (!acc) {
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return;
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}
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testThis(aID, acc, aNames, aRoles, aStates, aUndesiredStates, 0);
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}
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/**
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* Tests a single accessible.
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* Recursively calls itself until it reaches the last option item.
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* Called first time from the testSelect function.
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*
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* @param aID @see testSelect
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* @param aAcc The accessible to test.
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* @param aNames @see testSelect
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* @param aRoles @see testSelect
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* @param aStates @see testSelect
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* @param aUndesiredStates @see testSelect
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* @param aIndex The index in the three arrays to use. Used for both
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* the error message and for walking the tree downwards
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* from the base accessible.
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*/
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function testThis(aID, aAcc, aNames, aRoles, aStates, aUndesiredStates, aIndex)
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{
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if (aIndex >= aNames.length)
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return; // End of test
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else if (!aAcc) {
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ok(false, "No accessible for " + aID + " at index " + aIndex + "!");
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return;
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}
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is(aAcc.name, aNames[aIndex],
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"wrong name for " + aID + " at index " + aIndex + "!");
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var role = getRole(aAcc);
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is(role, aRoles[aIndex],
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"Wrong role for " + aID + " at index " + aIndex + "!");
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testStates(aID, aAcc, aStates, aUndesiredStates, aIndex);
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switch(role) {
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case ROLE_COMBOBOX:
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case ROLE_COMBOBOX_LIST:
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case ROLE_LABEL:
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case ROLE_LIST:
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// All of these expect the next item to be the first child of the current
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// accessible.
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var acc = null;
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try {
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acc = aAcc.firstChild;
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} catch(e) {}
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testThis(aID, acc, aNames, aRoles, aStates, aUndesiredStates, ++aIndex);
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break;
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case ROLE_COMBOBOX_OPTION:
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case ROLE_OPTION:
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case ROLE_TEXT_LEAF:
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// All of these expect the next item's accessible to be the next sibling.
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var acc = null;
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try {
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acc = aAcc.nextSibling;
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} catch(e) {}
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testThis(aID, acc, aNames, aRoles, aStates, aUndesiredStates, ++aIndex);
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break;
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default:
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break;
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}
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}
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/**
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* Tests the states for the given accessible.
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* Does not test for extraStates since we don't need these.
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*
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* @param aID the ID of the base element.
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* @param aAcc the current accessible from the recursive algorithm.
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* @param aStates the states array passed down from the testThis function.
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* @param aUndesiredStates the array of states we don't want to see, if any.
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* @param aIndex the index of the item to test, determined and passed in from
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* the testThis function.
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*/
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function testStates(aID, aAcc, aStates, aUndesiredStates, aIndex)
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{
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var state = {}, extraState = {};
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aAcc.getState(state, extraState);
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if (aStates[aIndex] != 0)
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is(state.value & aStates[aIndex], aStates[aIndex],
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"Wrong state bits for " + aID + " at index " + aIndex + "!");
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if (aUndesiredStates[aIndex] != 0)
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is(state.value & aUndesiredStates[aIndex], 0,
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"Wrong undesired state bits for " + aID + " at index " + aIndex + "!");
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}
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