Made Tile.Image.IFrame an addin which will be used only if a layer is configured with the maxGetUrlLength option. This deprecates Layer.WMS.Post. r=tschaub (closes #2824)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@10755 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
2010-09-16 21:54:22 +00:00
parent 1284b71bbc
commit ce90aebfd0
11 changed files with 300 additions and 224 deletions
@@ -161,6 +161,8 @@
    <div id="map" style="width: 512; height: 256; border: 1px solid red;"></div>

    <div id="docs">
+        <p><b>Deprecated.</b> See <a href="wms-long-url.html">wms-long-url.html</a>
+            for the recommended way to avoid long URLs.</p><p>
        This example uses a large SLD created on the client side to style a WMS
        layer.  This example uses a WMS.Post layer which transfers data via the
        HTTP-POST protocol. <br>
@@ -171,7 +173,7 @@
        instead. The default setting (["mozilla", "firefox", "opera"])
        excludes problematic browsers without removing the ability to use long
        request parameters, because all these browsers support long urls via
-        GET.
+        GET.</p>
    </div>
  </body>
 </html>
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>WMS with POST Requests to Avoid Long URLs</title>
+    <link rel="stylesheet" href="../theme/default/style.css" type="text/css" />
+    <link rel="stylesheet" href="style.css" type="text/css" />
+  </head>
+  <body>
+    <h1 id="title">WMS with POST Requests to Avoid Long URLs</h1>
+
+    <div id="tags">
+        sld, sld_body, post, iframe, advanced
+    </div>
+
+    <div id="shortdesc">Render tiles in IMG or IFRAME elements, depending on
+        the complexity of the GetMap request</div>
+
+    <div id="map" class="smallmap"></div>
+
+    <div id="docs">
+        <p>The <code>maxGetUrlLength</code> property of the layer's
+            <code>tileOptions</code> option causes tiles to be requested using
+            HTTP POST when the length of the GET url would exceed the specified
+            length (2048 characters is recommended). In real life applications,
+            this happens often when using the SLD_BODY request parameter for
+            inline styling.
+        </p><p>
+            <input type="radio" name="group" id="longurl" checked="checked">
+            Long URL - POST requests
+            <br>
+            <input type="radio" name="group" id="shorturl">
+            Short URL - GET requests
+        </p><p>
+            View the <a href="wms-long-url.js" target="_blank">wms-long-url.js</a>
+            source to see how this is done.
+        </p>
+    </div>
+    <script src="../lib/OpenLayers.js"></script>
+    <script src="wms-long-url.js"></script>
+  </body>
+</html>
@@ -0,0 +1,19 @@
+// a long text that we set as dummy param (makeTheUrlLong) to make the url long
+var longText = new Array(205).join("1234567890");
+
+var map = new OpenLayers.Map( 'map' );
+var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
+        "http://vmap0.tiles.osgeo.org/wms/vmap0",
+        {layers: 'basic', makeTheUrlLong: longText},
+        {tileOptions: {maxGetUrlLength: 2048}}
+);
+map.addLayer(layer);
+map.zoomToMaxExtent();
+
+// add behavior to dom elements
+document.getElementById("longurl").onclick = function() {
+    layer.mergeNewParams({makeTheUrlLong: longText})
+}
+document.getElementById("shorturl").onclick = function() {
+    layer.mergeNewParams({makeTheUrlLong: null})
+}