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1
29
30 package nextapp.echo2.testapp.interactive;
31
32 import java.io.IOException  ;
33 import java.io.InputStream ;
34 import java.io.OutputStream ;
35
36 import org.w3c.dom.Document ;
37 import org.w3c.dom.Element ;
38
39 import nextapp.echo2.app.util.Uid;
40 import nextapp.echo2.webcontainer.ContainerContext;
41 import nextapp.echo2.webrender.ClientProperties;
42 import nextapp.echo2.webrender.Connection;
43 import nextapp.echo2.webrender.ContentType;
44 import nextapp.echo2.webrender.ServerDelayMessage;
45 import nextapp.echo2.webrender.Service;
46 import nextapp.echo2.webrender.WebRenderServlet;
47 import nextapp.echo2.webrender.output.HtmlDocument;
48 import nextapp.echo2.webrender.output.XmlDocument;
49
50
57 public class CoolDelayMessage extends ServerDelayMessage {
58
59 private static int BUFFER_SIZE = 4096;
60 private static String IMAGE_RESOURCE_NAME = Styles.IMAGE_PATH + "ShadowOverlay.png";
61
62 private static Service IMAGE_SERVICE = new ImageService();
63 static {
64 WebRenderServlet.getServiceRegistry().add(IMAGE_SERVICE);
65 }
66
67 private static class ImageService implements Service {
68
69 private static final String SERVICE_ID = Uid.generateUidString();
70
71
74 public String getId() {
75 return SERVICE_ID;
76 }
77
78
81 public int getVersion() {
82 return 0;
83 }
84
85
88 public void service(Connection conn) throws IOException {
89 conn.setContentType(ContentType.IMAGE_PNG);
90 OutputStream out = conn.getOutputStream();
91
92 InputStream in = null;
93 byte[] buffer = new byte[BUFFER_SIZE];
94 int bytesRead = 0;
95
96 try {
97 in = CoolDelayMessage.class.getResourceAsStream(IMAGE_RESOURCE_NAME);
98 if (in == null) {
99 throw new IllegalArgumentException ("Specified resource does not exist: " + IMAGE_RESOURCE_NAME + ".");
100 }
101 do {
102 bytesRead = in.read(buffer);
103 if (bytesRead > 0) {
104 out.write(buffer, 0, bytesRead);
105 }
106 } while (bytesRead > 0);
107 } finally {
108 if (in != null) { try { in.close(); } catch (IOException ex) { } }
109 }
110 }
111 }
112
113 private Element messageElement;
114
115 public CoolDelayMessage(ContainerContext containerContext, String messageText) {
116 XmlDocument xmlDocument = new XmlDocument("div", null, null, HtmlDocument.XHTML_1_0_NAMESPACE_URI);
117 Document document = xmlDocument.getDocument();
118 Element divElement = document.getDocumentElement();
119 divElement.setAttribute("id", ELEMENT_ID_MESSAGE);
120 divElement.setAttribute("style", "position:absolute;top:0px;left:0px;width:100%;height:100%;cursor:wait;"
121 + "margin:0px;padding:0px;visibility:hidden;z-index:10000;");
122
123 Element tableElement = document.createElement("table");
124 tableElement.setAttribute("style", "width:100%;height:100%;border:0px;padding:0px;");
125 divElement.appendChild(tableElement);
126
127 Element tbodyElement = document.createElement("tbody");
128 tableElement.appendChild(tbodyElement);
129
130 Element trElement = document.createElement("tr");
131 tbodyElement.appendChild(trElement);
132
133 Element tdElement = document.createElement("td");
134 tdElement.setAttribute("style", "width:100%;height:100%;");
135 tdElement.setAttribute("valign", "middle");
136 tdElement.setAttribute("align", "center");
137 trElement.appendChild(tdElement);
138
139 Element longDivElement = document.createElement("div");
140 longDivElement.setAttribute("id", ELEMENT_ID_LONG_MESSAGE);
141 String longDivStyleText = "color:#4f4f4f;width:277px;padding-top:120px;height:156px;"
142 + "font-family:verdana,arial,helvetica,sans-serif;font-size:14pt;font-weight:bold;font-style:italic;"
143 + "text-align:center;";
144 if (containerContext.getClientProperties().getBoolean(ClientProperties.PROPRIETARY_IE_PNG_ALPHA_FILTER_REQUIRED)) {
145 longDivStyleText += "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"
147 + containerContext.getServiceUri(IMAGE_SERVICE) + "', sizingMethod='scale')";
148 } else {
149 longDivStyleText += "background-image:url(" + containerContext.getServiceUri(IMAGE_SERVICE) + ");";
150 }
151 longDivElement.setAttribute("style", longDivStyleText);
152
153 longDivElement.appendChild(document.createTextNode(messageText));
154 tdElement.appendChild(longDivElement);
155
156 messageElement = divElement;
157 }
158
159
162 public Element getMessage() {
163 return messageElement;
164 }
165 }
166 |
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