f84f696e31
git-svn-id: http://svn.openlayers.org/trunk/openlayers@11162 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
246 lines
9.0 KiB
HTML
246 lines
9.0 KiB
HTML
<html>
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<head>
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<script src="../OLLoader.js"></script>
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<script type="text/javascript">
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function test_initialize(t) {
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t.plan(4);
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control = new OpenLayers.Control.NavigationHistory();
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t.ok(control instanceof OpenLayers.Control.NavigationHistory,
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"constructor returns correct instance");
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t.eq(control.displayClass, "olControlNavigationHistory",
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"displayClass is correct");
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t.ok(control.next instanceof OpenLayers.Control.Button,
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"constructor creates next control");
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t.ok(control.previous instanceof OpenLayers.Control.Button,
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"constructor creates previous control");
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}
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function test_destroy(t) {
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t.plan(2);
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control = new OpenLayers.Control.NavigationHistory();
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control.next.destroy = function() {
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t.ok(true, "destroy calls next.destroy");
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}
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control.previous.destroy = function() {
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t.ok(true, "destroy calls previous.destroy");
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}
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control.destroy();
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}
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function test_previous(t) {
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var numStates = 10;
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t.plan(
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numStates * 3 // for lon, lat, zoom
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+ 3 // for confirming that previous with empty stack works
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);
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var history = new Array(numStates);
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for(var i=0; i<numStates; ++i) {
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history[i] = {
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center: new OpenLayers.LonLat(
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(i * 360 / numStates) - 180, (i * 180 / numStates) - 90
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),
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zoom: i
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};
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}
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var map = new OpenLayers.Map("map");
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var layer = new OpenLayers.Layer(
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"test", {isBaseLayer: true}
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);
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map.addLayer(layer);
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var control = new OpenLayers.Control.NavigationHistory();
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map.addControl(control);
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// set previous states
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for(i=0; i<numStates; ++i) {
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map.setCenter(history[i].center, history[i].zoom);
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}
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// test previous states
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for(i=numStates-1; i>=0; --i) {
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t.eq(map.getCenter().lon, history[i].center.lon, "(step " + i + ") lon correct");
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t.eq(map.getCenter().lat, history[i].center.lat, "(step " + i + ") lat correct");
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t.eq(map.getZoom(), history[i].zoom, "(step " + i + ") zoom correct");
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control.previous.trigger();
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}
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// test previous with empty stack
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t.eq(map.getCenter().lon, history[0].center.lon, "(step 0 again) lon correct");
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t.eq(map.getCenter().lat, history[0].center.lat, "(step 0 again) lat correct");
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t.eq(map.getZoom(), history[0].zoom, "(step 0 again) zoom correct");
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}
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function test_next(t) {
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var numStates = 10;
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t.plan(
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numStates * 3 // for lon, lat, zoom
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+ 3 // for confirming that next with empty stack works
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);
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var history = new Array(numStates);
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for(var i=0; i<numStates; ++i) {
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history[i] = {
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center: new OpenLayers.LonLat(
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(i * 360 / numStates) - 180, (i * 180 / numStates) - 90
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),
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zoom: i
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};
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}
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var map = new OpenLayers.Map("map");
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var layer = new OpenLayers.Layer(
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"test", {isBaseLayer: true}
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);
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map.addLayer(layer);
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var control = new OpenLayers.Control.NavigationHistory();
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map.addControl(control);
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// set previous states
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for(i=0; i<numStates; ++i) {
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map.setCenter(history[i].center, history[i].zoom);
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}
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// set next states
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for(i=numStates-1; i>=0; --i) {
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control.previous.trigger();
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}
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// test next states
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for(i=0; i<numStates; ++i) {
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t.eq(map.getCenter().lon, history[i].center.lon, "(step " + i + ") lon correct");
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t.eq(map.getCenter().lat, history[i].center.lat, "(step " + i + ") lat correct");
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t.eq(map.getZoom(), history[i].zoom, "(step " + i + ") zoom correct");
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control.next.trigger();
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}
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// test next with empty stack
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t.eq(map.getCenter().lon, history[numStates-1].center.lon, "(step " + (numStates-1) + " again) lon correct");
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t.eq(map.getCenter().lat, history[numStates-1].center.lat, "(step " + (numStates-1) + " again) lat correct");
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t.eq(map.getZoom(), history[numStates-1].zoom, "(step " + (numStates-1) + " again) zoom correct");
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}
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function test_limit(t) {
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var numStates = 10;
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var limit = 3;
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t.plan(
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numStates * 6 // for previous & next lon, lat, zoom
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);
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var history = new Array(numStates);
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for(var i=0; i<numStates; ++i) {
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history[i] = {
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center: new OpenLayers.LonLat(
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(i * 360 / numStates) - 180, (i * 180 / numStates) - 90
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),
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zoom: i
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};
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}
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var map = new OpenLayers.Map("map");
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var layer = new OpenLayers.Layer(
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"test", {isBaseLayer: true}
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);
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map.addLayer(layer);
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var control = new OpenLayers.Control.NavigationHistory({limit: limit});
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map.addControl(control);
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// set previous states
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for(i=0; i<numStates; ++i) {
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map.setCenter(history[i].center, history[i].zoom);
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}
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// test previous states (only up to limit should work)
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var state;
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for(i=numStates-1; i>=0; --i) {
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state = Math.max(i, numStates - limit - 1);
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t.eq(map.getCenter().lon, history[state].center.lon, "(previous step " + i + ") lon correct: state " + state);
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t.eq(map.getCenter().lat, history[state].center.lat, "(previous step " + i + ") lat correct: state " + state);
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t.eq(map.getZoom(), history[state].zoom, "(previous step " + i + ") zoom correct: state " + state);
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control.previous.trigger();
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}
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// test next states
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for(i=0; i<numStates; ++i) {
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state = Math.min(numStates - 1, numStates - limit - 1 + i);
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t.eq(map.getCenter().lon, history[state].center.lon, "(next step " + i + ") lon correct: state " + state);
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t.eq(map.getCenter().lat, history[state].center.lat, "(next step " + i + ") lat correct: state " + state);
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t.eq(map.getZoom(), history[state].zoom, "(next step " + i + ") zoom correct: state " + state);
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control.next.trigger();
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}
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}
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function test_clear(t) {
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t.plan(7);
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var map = new OpenLayers.Map("map");
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var layer = new OpenLayers.Layer(
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"test", {isBaseLayer: true}
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);
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map.addLayer(layer);
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map.zoomToMaxExtent();
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var control = new OpenLayers.Control.NavigationHistory();
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map.addControl(control);
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t.ok(!control.previous.active, "previous control not active");
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t.ok(!control.next.active, "next control not active");
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map.zoomTo(4);
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t.ok(control.previous.active, "previous control is active after a move");
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t.ok(!control.next.active, "next control is not active after a move");
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control.clear();
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t.eq(control.previousStack.length + control.nextStack.length, 0, "stacks are empty after a clear");
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t.ok(!control.previous.active, "previous control not active after a clear");
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t.ok(!control.next.active, "next control not active after a clear");
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control.destroy();
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}
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function test_reprojection(t) {
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t.plan(2);
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var map = new OpenLayers.Map("map");
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var layer = new OpenLayers.Layer(
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"test", {isBaseLayer: true}
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);
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map.addLayer(layer);
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map.zoomToMaxExtent();
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var control = new OpenLayers.Control.NavigationHistory();
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map.addControl(control);
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map.zoomTo(4);
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var bounds = map.getExtent().clone();
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var expected = bounds.transform(new OpenLayers.Projection('EPSG:4326'),
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new OpenLayers.Projection('EPSG:900913'));
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// change the projection to EPSG:900913
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var projSettings = {
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units: "m",
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maxExtent: new OpenLayers.Bounds(-20037508, -20037508, 20037508, 20037508),
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maxResolution: 156543.0339
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};
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map.setOptions(projSettings);
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map.projection = 'EPSG:900913';
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delete projSettings.maxResolution;
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projSettings.projection = new OpenLayers.Projection('EPSG:900913');
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layer.addOptions(projSettings);
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layer.initResolutions();
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map.zoomTo(7);
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// go back one in the history
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control.previous.trigger();
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t.eq(map.getExtent().left.toFixed(3), expected.left.toFixed(3), "The extent [left] is reprojected correctly");
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t.eq(map.getExtent().right.toFixed(3), expected.right.toFixed(3), "The extent [right] is reprojected correctly");
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// top and bottom cannot be checked here since in EPSG:900913 the extent is not a rectangle so they are adjusted.
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control.destroy();
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}
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</script>
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</head>
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<body>
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<div id="map" style="width: 100px; height: 100px;"/>
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</body>
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</html>
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