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48a47b993a6332a12a2b6801912692733b51a852
openlayers/tests/Layer/WMS.html
ahocevar dde45696f7 Simplified tile queue; using the tile's beforedraw listener. 
Since draw is the only tile operation that we defer, the tile queue can be an array of tiles and queue handling can be simplified. We now use the beforedraw event to defer drawing, and remove all occurrences of a tile from the tile queue when we draw it.

Instead of layers that want to defer tile drawing having to override the tile's draw method, layers can now abort drawing by returning false from a beforedraw listener, and later call draw(true) to draw the tile directly, without clearing it first.
2012-01-28 16:12:29 +01:00

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<html>
<head>
<script type="text/javascript">var oldAlert = window.alert, gMess; window.alert = function(message) {gMess = message; return true;};</script>
<script src='http://maps.google.com/maps?file=api&amp;v=2&amp;key=ABQIAAAAjpkAC9ePGem0lIq5XcMiuhR_wWLPFku8Ix9i2SXYRVK3e45q1BQUd_beF8dtzKET_EteAjPdGDwqpQ'></script>
<script type="text/javascript">window.alert = oldAlert;</script>
<script src="../OLLoader.js"></script>
<script type="text/javascript">
// turn off animation frame handling, so we can check img urls in tests
delete OpenLayers.Layer.Grid.prototype.queueTileDraw;
var isMozilla = (navigator.userAgent.indexOf("compatible") == -1);
var layer;
var name = 'Test Layer';
var url = "http://octo.metacarta.com/cgi-bin/mapserv";
var params = { map: '/mapdata/vmap_wms.map',
layers: 'basic',
format: 'image/jpeg'};
function test_Layer_WMS_constructor (t) {
t.plan( 15 );
var trans_format = "image/png";
if (OpenLayers.Util.alphaHack()) { trans_format = "image/gif"; }
var url = "http://octo.metacarta.com/cgi-bin/mapserv";
layer = new OpenLayers.Layer.WMS(name, url, params);
t.ok( layer instanceof OpenLayers.Layer.WMS, "new OpenLayers.Layer.WMS returns object" );
t.eq( layer.url, "http://octo.metacarta.com/cgi-bin/mapserv", "layer.url is correct (HTTPRequest inited)" );
t.eq( layer.params.MAP, "/mapdata/vmap_wms.map", "params passed in correctly uppercased" );
t.eq( layer.params.SERVICE, "WMS", "default params correclty uppercased and copied");
t.eq(layer.isBaseLayer, true, "no transparency setting, wms is baselayer");
params.TRANSPARENT = "true";
var layer2 = new OpenLayers.Layer.WMS(name, url, params);
t.eq(layer2.isBaseLayer, false, "transparency == 'true', wms is not baselayer");
params.TRANSPARENT = "TRUE";
var layer3 = new OpenLayers.Layer.WMS(name, url, params);
t.eq(layer3.isBaseLayer, false, "transparency == 'TRUE', wms is not baselayer");
t.eq(layer3.params.FORMAT, trans_format, "transparent = TRUE causes non-image/jpeg format");
params.TRANSPARENT = "TRuE";
var layer4 = new OpenLayers.Layer.WMS(name, url, params);
t.eq(layer4.isBaseLayer, false, "transparency == 'TRuE', wms is not baselayer");
t.eq(layer4.params.FORMAT, trans_format, "transparent = TRuE causes non-image/jpeg format");
params.TRANSPARENT = true;
var layer5 = new OpenLayers.Layer.WMS(name, url, params);
t.eq(layer5.isBaseLayer, false, "transparency == true, wms is not baselayer");
t.eq(layer5.params.FORMAT, trans_format, "transparent = true causes non-image/jpeg format");
params.TRANSPARENT = false;
var layer6 = new OpenLayers.Layer.WMS(name, url, params);
t.eq(layer6.isBaseLayer, true, "transparency == false, wms is baselayer");
params.TRANSPARENT = true;
var layer7 = new OpenLayers.Layer.WMS(name, url, params, {noMagic: true});
t.eq(layer7.params.FORMAT, "image/jpeg", "When using noMagic true image/jpeg will not be automagically switched to image/png or image/gif if transparent");
params.TRANSPARENT = true;
var layer8 = new OpenLayers.Layer.WMS(name, url, params, {noMagic: true});
t.eq(layer8.isBaseLayer, true, "When using noMagic then transparent means the wms layer is not automagically changed to not being a baselayer");
params.TRANSPARENT = false;
}
function test_Layer_WMS_addtile (t) {
t.plan( 6 );
var url = "http://octo.metacarta.com/cgi-bin/mapserv";
layer = new OpenLayers.Layer.WMS(name, url, params);
var map = new OpenLayers.Map('map');
map.addLayer(layer);
var pixel = new OpenLayers.Pixel(5,6);
var tile = layer.addTile(new OpenLayers.Bounds(1,2,3,4), pixel);
tile.draw();
var img = tile.imgDiv;
var tParams = OpenLayers.Util.extend({},
OpenLayers.Util.upperCaseObject(params));
tParams = OpenLayers.Util.extend(tParams, {
BBOX: [1,2,3,4],
WIDTH: "256", HEIGHT: "256"
});
t.eq( tile.url,
layer.getFullRequestString(tParams),
"image src is created correctly via addtile" );
t.eq( tile.getTile().style.top, "6%", "image top is set correctly via addtile" );
t.eq( tile.getTile().style.left, "5%", "image top is set correctly via addtile" );
var firstChild = layer.div.firstChild;
t.eq( firstChild.nodeName.toLowerCase(), "img", "div first child is an image object" );
t.ok( firstChild == img, "div first child is correct image object" );
t.eq( tile.position.toString(), "x=5,y=6", "Position of tile is set correctly." );
map.destroy();
}
function test_Layer_WMS_bboxEncoding (t) {
t.plan( 6 );
var url = "http://octo.metacarta.com/cgi-bin/mapserv";
layer = new OpenLayers.Layer.WMS(name, url, params, {encodeBBOX:true});
var map = new OpenLayers.Map('map');
map.addLayer(layer);
var pixel = new OpenLayers.Pixel(5,6);
var tile = layer.addTile(new OpenLayers.Bounds(1,2,3,4), pixel);
tile.draw();
var img = tile.imgDiv;
var tParams = OpenLayers.Util.extend({},
OpenLayers.Util.upperCaseObject(params));
tParams = OpenLayers.Util.extend(tParams, {
BBOX: "1,2,3,4",
WIDTH: "256", HEIGHT: "256"
});
t.eq( tile.url,
layer.getFullRequestString(tParams),
"image src is created correctly via addtile" );
t.eq( tile.getTile().style.top, "6%", "image top is set correctly via addtile" );
t.eq( tile.getTile().style.left, "5%", "image top is set correctly via addtile" );
var firstChild = layer.div.firstChild;
t.eq( firstChild.nodeName.toLowerCase(), "img", "div first child is an image object" );
t.ok( firstChild, img, "div first child is correct image object" );
t.eq( tile.position.toString(), "x=5,y=6", "Position of tile is set correctly." );
map.destroy();
}
function test_Layer_WMS_inittiles (t) {
t.plan( 2 );
var map = new OpenLayers.Map('map');
layer = new OpenLayers.Layer.WMS(name, url, params, {buffer:2});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0,0),5);
t.eq( layer.grid.length, 7, "Grid rows is correct." );
t.eq( layer.grid[0].length, 6, "Grid cols is correct." );
map.destroy();
}
function test_Layer_WMS_clone (t) {
t.plan(4);
var url = "http://octo.metacarta.com/cgi-bin/mapserv";
var options = {tileSize: new OpenLayers.Size(500,50)};
var map = new OpenLayers.Map('map', options);
layer = new OpenLayers.Layer.WMS(name, url, params);
map.addLayer(layer);
layer.grid = [ [6, 7],
[8, 9]];
var clone = layer.clone();
t.ok( clone.grid != layer.grid, "clone does not copy grid");
t.ok( clone.tileSize.equals(layer.tileSize), "tileSize correctly cloned");
layer.tileSize.w += 40;
t.eq( clone.tileSize.w, 500, "changing layer.tileSize does not change clone.tileSize -- a fresh copy was made, not just copied reference");
t.eq( clone.alpha, layer.alpha, "alpha copied correctly");
layer.grid = null;
map.destroy();
}
function test_Layer_WMS_isBaseLayer(t) {
t.plan(3);
var url = "http://octo.metacarta.com/cgi-bin/mapserv";
layer = new OpenLayers.Layer.WMS(name, url, params);
t.ok( layer.isBaseLayer, "baselayer is true by default");
var newParams = OpenLayers.Util.extend({}, params);
newParams.transparent = "true";
layer = new OpenLayers.Layer.WMS(name, url, newParams);
t.ok( !layer.isBaseLayer, "baselayer is false when transparent is set to true");
layer = new OpenLayers.Layer.WMS(name, url, params, {isBaseLayer: false});
t.ok( !layer.isBaseLayer, "baselayer is false when option is set to false" );
}
function test_Layer_WMS_mergeNewParams (t) {
t.plan( 4 );
var map = new OpenLayers.Map("map");
var url = "http://octo.metacarta.com/cgi-bin/mapserv";
layer = new OpenLayers.Layer.WMS(name, url, params);
var newParams = { layers: 'sooper',
chickpeas: 'image/png'};
map.addLayer(layer);
map.zoomToMaxExtent();
layer.redraw = function() {
t.ok(true, "layer is redrawn after new params merged");
}
layer.mergeNewParams(newParams);
t.eq( layer.params.LAYERS, "sooper", "mergeNewParams() overwrites well");
t.eq( layer.params.CHICKPEAS, "image/png", "mergeNewParams() adds well");
newParams.CHICKPEAS = 151;
t.eq( layer.params.CHICKPEAS, "image/png", "mergeNewParams() makes clean copy of hashtable");
map.destroy();
}
function test_Layer_WMS_getFullRequestString (t) {
t.plan( 4 );
var map = new OpenLayers.Map('map');
map.projection = "xx";
var tUrl = "http://octo.metacarta.com/cgi-bin/mapserv";
var tParams = { layers: 'basic',
format: 'image/png'};
var tLayer = new OpenLayers.Layer.WMS(name, tUrl, tParams);
map.addLayer(tLayer);
var str = tLayer.getFullRequestString();
var tParams = {
LAYERS: "basic", FORMAT: "image/png", SERVICE: "WMS",
VERSION: "1.1.1", REQUEST: "GetMap", STYLES: "",
SRS: "xx"
};
t.eq(str,
tUrl + "?" + OpenLayers.Util.getParameterString(tParams),
"getFullRequestString() adds SRS value");
map.removeLayer(tLayer);
tLayer.projection = "none";
map.addLayer(tLayer);
str = tLayer.getFullRequestString();
delete tParams['SRS'];
t.eq(str,
tUrl + "?" + OpenLayers.Util.getParameterString(tParams),
"getFullRequestString() by default does *not* add SRS value if projection is 'none'");
map.destroy();
map = new OpenLayers.Map("map", {projection: "EPSG:4326"});
var layerProj = new OpenLayers.Projection("FOO", {
equals: function() {return true},
getCode: function() {return "FOO"}
});
tLayer = new OpenLayers.Layer.WMS(name, tUrl, tParams, {projection: layerProj});
map.addLayer(tLayer);
str = tLayer.getFullRequestString();
tParams.SRS = "FOO";
t.eq(str,
tUrl + "?" + OpenLayers.Util.getParameterString(tParams),
"getFullRequestString() uses the layer projection if it equals the map projection");
map.destroy();
map = new OpenLayers.Map("map", {projection: "EPSG:4326"});
map.addLayer(new OpenLayers.Layer(null, {isBaseLayer: true}));
tLayer = new OpenLayers.Layer.WMS(name, tUrl);
tLayer.map = map;
var error;
try {
tLayer.getFullRequestString();
error = false;
} catch(err) {
error = true;
}
t.ok(!error, "no error on getFullRequestString if layer has no projection");
map.destroy();
}
function test_setOpacity(t) {
t.plan(1);
var layer = new OpenLayers.Layer.WMS(
null, "/bogus/wms", {layers: "mylayer"}
);
var map = new OpenLayers.Map("map");
map.addLayer(layer);
map.zoomToMaxExtent();
layer.setOpacity(0.5);
t.delay_call(1, function() {
t.eq(parseFloat(layer.div.firstChild.style.opacity), 0.5, "opacity set");
map.destroy();
});
}
function test_Layer_WMS_noGutters (t) {
t.plan(2);
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS("no gutter layer", url, params, {gutter: 0});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0,0), 5);
var tile = layer.grid[0][0];
var request = layer.getURL(tile.bounds);
var args = OpenLayers.Util.getParameters(request);
t.eq(parseInt(args['WIDTH']),
tile.size.w,
"layer without gutter requests images that are as wide as the tile");
t.eq(parseInt(args['HEIGHT']),
tile.size.h,
"layer without gutter requests images that are as tall as the tile");
layer.destroy();
map.destroy();
}
function test_Layer_WMS_gutters (t) {
t.plan(2);
var gutter = 15;
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS("gutter layer", url, params, {gutter: gutter});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0,0), 5);
var tile = layer.grid[0][0];
var request = layer.getURL(tile.bounds);
var args = OpenLayers.Util.getParameters(request);
t.eq(parseInt(args['WIDTH']),
tile.size.w + (2 * gutter),
"layer with gutter requests images that are wider by twice the gutter");
t.eq(parseInt(args['HEIGHT']),
tile.size.h + (2 * gutter),
"layer with gutter requests images that are taller by twice the gutter");
layer.destroy();
map.destroy();
}
function test_maxExtent(t) {
t.plan(5);
var layer = new OpenLayers.Layer.WMS(
null, "http://example.com/wms",
{layers: "foo"},
{maxExtent: [-180, 0, 0, 90]}
);
t.ok(layer.maxExtent instanceof OpenLayers.Bounds, "(array) bounds instance");
t.eq(layer.maxExtent.left, -180, "(array) bounds left");
t.eq(layer.maxExtent.bottom, 0, "(array) bounds left");
t.eq(layer.maxExtent.right, 0, "(array) bounds right");
t.eq(layer.maxExtent.top, 90, "(array) bounds top");
layer.destroy();
}
function test_minExtent(t) {
t.plan(5);
var layer = new OpenLayers.Layer.WMS(
null, "http://example.com/wms",
{layers: "foo"},
{minExtent: [-180, 0, 0, 90]}
);
t.ok(layer.minExtent instanceof OpenLayers.Bounds, "(array) bounds instance");
t.eq(layer.minExtent.left, -180, "(array) bounds left");
t.eq(layer.minExtent.bottom, 0, "(array) bounds left");
t.eq(layer.minExtent.right, 0, "(array) bounds right");
t.eq(layer.minExtent.top, 90, "(array) bounds top");
layer.destroy();
}
function test_tileOrigin(t) {
t.plan(4);
var dummy = new OpenLayers.Layer(null, {isBaseLayer: true});
var unconstrained = new OpenLayers.Layer.WMS(
null, "http://example.com/wms",
{layers: "unconstrained"},
{isBaseLayer: false, buffer: 0}
);
var constrained = new OpenLayers.Layer.WMS(
null, "http://example.com/wms-c",
{layers: "constrained"},
{buffer: 0, isBaseLayer: false, tileOrigin: new OpenLayers.LonLat(-180, -90)}
);
var map = new OpenLayers.Map({
div: "map",
maxExtent: new OpenLayers.Bounds(-185, -95, 185, 95),
layers: [dummy, unconstrained, constrained],
center: new OpenLayers.LonLat(0, 0),
zoom: 1
});
t.eq(unconstrained.grid[1][0].bounds.bottom, -95, "unconstrained bottom correct");
t.eq(unconstrained.grid[1][0].bounds.left, -185, "unconstrained left correct");
t.eq(constrained.grid[1][0].bounds.bottom, -90, "constrained bottom correct");
t.eq(constrained.grid[1][0].bounds.left, -180, "constrained left correct");
map.destroy();
}
function test_Layer_WMS_destroy (t) {
t.plan( 1 );
var map = new OpenLayers.Map('map');
layer = new OpenLayers.Layer.WMS(name, url, params);
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(0,0), 5);
//grab a reference to one of the tiles
var tile = layer.grid[0][0];
layer.destroy();
// checks to make sure superclass (grid) destroy() was called
t.ok( layer.grid == null, "grid set to null");
}
function test_Layer_WMS_v13(t) {
t.plan(6);
var lon = 5;
var lat = 40;
var zoom = 5;
var map = new OpenLayers.Map( 'map' );
var layer = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://myserver.org/wms?",
{layers: 'mylayer', version: '1.3.0'},
{singleTile: true}
);
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
var url = layer.getURL(map.getExtent());
var params = url.split("&");
var bbox;
for (var i=0, len=params.length; i<len; i++) {
var param = params[i];
var a = param.split('=');
if (a[0] === 'BBOX') {
bbox = a[1];
break;
}
}
t.eq(layer.params.CRS, "EPSG:4326", "In WMS 1.3 SRS is now CRS");
t.eq(bbox, "27.9150390625,-5.986328125,52.0849609375,15.986328125", "Axis sequence is lat lon for EPSG:4326 in WMS 1.3.0");
var layer2 = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://myserver.org/wms?",
{layers: 'mylayer', version: '1.1.1'},
{singleTile: true}
);
map.addLayer(layer2);
var url = layer2.getURL(map.getExtent());
var params = url.split("&");
var bbox;
for (var i=0, len=params.length; i<len; i++) {
var param = params[i];
var a = param.split('=');
if (a[0] === 'BBOX') {
bbox = a[1];
break;
}
}
t.eq(layer2.params.SRS, "EPSG:4326", "In WMS 1.1.1 parameter is called SRS");
t.eq(bbox, "-5.986328125,27.9150390625,15.986328125,52.0849609375", "Axis sequence is lon lat for EPSG:4326 in WMS 1.1.1");
map.destroy();
// CRS:84 has normal axis sequence (lon lat)
var map = new OpenLayers.Map( 'map', {projection: 'CRS:84'} );
var layer = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://myserver.org/wms?",
{layers: 'mylayer', version: '1.3.0'},
{singleTile: true}
);
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
var url = layer.getURL(map.getExtent());
var params = url.split("&");
var bbox, exceptions;
for (var i=0, len=params.length; i<len; i++) {
var param = params[i];
var a = param.split('=');
if (a[0] === 'EXCEPTIONS') {
exceptions = a[1];
}
if (a[0] === 'BBOX') {
bbox = a[1];
}
}
t.eq(exceptions, "INIMAGE", "If not set, EXCEPTIONS should be INIMAGE for WMS 1.3");
t.eq(bbox, "-5.986328125,27.9150390625,15.986328125,52.0849609375", "Axis sequence for CRS:84 is lon lat");
map.destroy();
}
function test_transparent(t) {
t.plan(5);
var map = new OpenLayers.Map("map", {allOverlays: true});
var layer = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://myserver.org/wms?",
{layers: 'mylayer', transparent: true}
);
map.addLayer(layer);
t.eq(typeof layer.params.TRANSPARENT, "boolean", "transparent param is boolean");
t.ok(layer.getFullRequestString({}).indexOf("TRANSPARENT=TRUE") != -1, "Boolean transparent param value is uppercase TRUE");
layer.mergeNewParams({transparent: false});
t.ok(layer.getFullRequestString({}).indexOf("TRANSPARENT=FALSE") != -1, "Boolean transparent param value is uppercase FALSE");
layer.mergeNewParams({transparent: "true"});
t.eq(typeof layer.params.TRANSPARENT, "string", "transparent param is string");
t.ok(layer.getFullRequestString({}).indexOf("TRANSPARENT=true") != -1, "transparent param value passed as provided if String");
map.destroy();
}
</script>
</head>
<body>
<div id="map" style="width:500px;height:550px"></div>
</body>
</html>
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