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<html>
<head>
<script type="text/javascript" src="../../http/tests/inspector-protocol/inspector-protocol-test.js"></script>
<script type="text/javascript" src="layer-protocol-test.js"></script>
<script type="text/javascript">
function addCompositedLayer()
{
var element = document.createElement("div");
element.className = "composited";
element.id = "last-element";
document.body.appendChild(element);
};
function test()
{
var documentNode;
var initialLayers;
var modifiedLayers;
InspectorTest.enableLayerTreeAgent(gotInitialLayerTree);
function gotInitialLayerTree(layers)
{
initialLayers = layers;
InspectorTest.setLayerTreeChangeCallback(gotModifiedLayerTree);
InspectorTest.sendCommand("Runtime.evaluate", {"expression": "addCompositedLayer()"});
};
function gotModifiedLayerTree(layers)
{
modifiedLayers = layers;
var mutations = layerMutations(initialLayers, modifiedLayers);
var newLayer = mutations.additions[0];
InspectorTest.sendCommand("DOM.pushNodesByBackendIdsToFrontend", {"backendNodeIds": [newLayer.backendNodeId]}, InspectorTest.wrapCallback(gotNodeId));
};
function gotNodeId(result)
{
InspectorTest.sendCommand("DOM.getAttributes", {"nodeId": result.nodeIds[0]}, InspectorTest.wrapCallback(gotNodeAttributes));
}
function gotNodeAttributes(result)
{
var attributes = attributesDictionaryFromArray(result.attributes);
if (attributes.id !== "last-element")
InspectorTest.log("FAIL: Did not obtain the expected element for the last inserted layer.");
dumpLayers(initialLayers);
dumpLayers(modifiedLayers);
InspectorTest.log("DONE!");
InspectorTest.completeTest();
};
function layerMutations(oldLayers, newLayers)
{
function layerIdMap(layer) {
return layer.layerId;
}
var oldLayerIds = oldLayers.map(layerIdMap);
var newLayerIds = newLayers.map(layerIdMap);
return {
additions: newLayers.filter(function (layer) {
return (oldLayerIds.indexOf(layer.layerId) === -1);
}),
removals: oldLayers.filter(function (layer) {
return (newLayerIds.indexOf(layer.layerId) === -1);
})
};
};
function attributesDictionaryFromArray(attributes)
{
var dictionary = {}
for (var i = 0, count = attributes.length; i < count; i += 2) {
dictionary[attributes[i]] = attributes[i + 1];
}
return dictionary;
};
function dumpLayers(layers)
{
// Keep "internal" layers out for better stability.
layers = layers.filter(function(layer) { return !!layer.backendNodeId; });
function replacer(key, value)
{
if (["layerId", "parentLayerId", "backendNodeId", "paintCount"].indexOf(key) >= 0)
return typeof(value);
// some values differ based on port, but the ones we most
// care about will always be less or equal 100.
if ((key === "width" || key === "height") && value > 100)
return typeof(value);
return value;
};
InspectorTest.log("\n" + JSON.stringify(layers, replacer, " "));
};
};
window.addEventListener("DOMContentLoaded", function () {
runTest();
}, false);
</script>
<style type="text/css">
div {
position: absolute;
top: 0;
left: 0;
}
.regular {
width: 100px;
height: 100px;
background-color: black;
}
.composited {
top: 25px;
left: 25px;
width: 50px;
height: 50px;
background-color: blue;
transform: translateZ(0);
}
.offset {
left: 200px;
transform: translateZ(0);
}
</style>
</head>
<body>
<div class="regular"></div>
<div class="composited">
<div class="composited"></div>
</div>
<div class="regular offset">
<div class="composited"></div>
</div>
</body>
</html>
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