michael@0: /** 
michael@0:  * Test for Bug 493881: Changes to legacy HTML color properties before the BODY is loaded
michael@0:  * should be ignored. Additionally, after BODY loads, setting any of these properties to undefined 
michael@0:  * should cause them to be returned as the string "undefined".
michael@0:  */
michael@0: 
michael@0: SimpleTest.waitForExplicitFinish();
michael@0: 
michael@0: var legacyProps = ["fgColor", "bgColor", "linkColor", "vlinkColor", "alinkColor"];
michael@0: var testColors = ["blue", "silver", "green", "orange", "red"];
michael@0: var rgbTestColors = ["rgb(255, 0, 0)", "rgb(192, 192, 192)", "rgb(0, 128, 0)", "rgb(255, 165, 0)", "rgb(255, 0, 0)"];
michael@0: var idPropList = [ {id: "plaintext", prop: "color"},
michael@0:                    {id: "body", prop: "background-color"},
michael@0:                    {id: "nonvisitedlink", prop: "color"},
michael@0:                    {id: "visitedlink", prop: "color"} ];
michael@0: var initialValues = [];
michael@0: 
michael@0: function setAndTestProperty(prop, color) {
michael@0:   var initial = document[prop];
michael@0:   document[prop] = color;
michael@0:   is(document[prop], initial, "document[" + prop + "] not ignored before body");
michael@0:   return initial;
michael@0: }
michael@0: 
michael@0: /**
michael@0:  * Attempt to set legacy color properties before BODY exists, and verify that such
michael@0:  * attempts are ignored.
michael@0:  */
michael@0: for (var i = 0; i < legacyProps.length; i++) {
michael@0:   initialValues[i] = setAndTestProperty(legacyProps[i], testColors[i]);
michael@0: }
michael@0: 
michael@0: /**
michael@0:  * After BODY loads, run some more tests.
michael@0:  */
michael@0: addLoadEvent( function() {
michael@0:   // Verify that the legacy color properties still have their original values.
michael@0:   for (var i = 0; i < legacyProps.length; i++) {
michael@0:     is(document[legacyProps[i]], initialValues[i], "document[" + legacyProps[i] + "] altered after body load");
michael@0:   }
michael@0:   
michael@0:   // Verify that legacy color properties applied before BODY are really ignored when rendering.
michael@0:   // Save current computed style colors for later use.
michael@0:   for (i = 0; i < idPropList.length; i++) {
michael@0:     var style = window.getComputedStyle(document.getElementById(idPropList[i].id), null);
michael@0:     var color = style.getPropertyValue(idPropList[i].prop);
michael@0:     idPropList[i].initialComputedColor = color;
michael@0:     isnot(color, rgbTestColors[i], "element rendered using before-body style");
michael@0:   }
michael@0:   // XXX: Can't get links to visually activate via script events, so can't verify
michael@0:   // that the alinkColor property was not applied.
michael@0:   
michael@0:   // Verify that setting legacy color props to undefined after BODY loads will cause them
michael@0:   // to be read as the string "undefined".
michael@0:   for (var i = 0; i < legacyProps.length; i++) {
michael@0:     document[legacyProps[i]] = undefined;
michael@0:     is(document[legacyProps[i]], "undefined", 
michael@0:       "Unexpected value of " + legacyProps[i] + " after setting to undefined");
michael@0:   }
michael@0:   
michael@0:   // Verify that setting legacy color props to undefined led to result
michael@0:   // of parsing undefined as a color.
michael@0:   for (i = 0; i < idPropList.length; i++) {
michael@0:     var style = window.getComputedStyle(document.getElementById(idPropList[i].id), null);
michael@0:     var color = style.getPropertyValue(idPropList[i].prop);
michael@0:     is(color, "rgb(0, 239, 14)", 
michael@0:       "element's style should get result of parsing undefined as a color");
michael@0:   }
michael@0: 
michael@0:   // Mark the test as finished.
michael@0:   setTimeout(SimpleTest.finish, 0);
michael@0: });