|
1
25 package org.riotfamily.forms.element.upload;
26
27 import java.io.File  ;
28 import java.io.FileInputStream ;
29 import java.io.IOException ;
30
31 import javax.servlet.http.HttpServletRequest ;
32 import javax.servlet.http.HttpServletResponse ;
33
34 import org.riotfamily.common.util.FlashInfo;
35 import org.riotfamily.forms.ContentElement;
36 import org.riotfamily.forms.EditorBinder;
37 import org.riotfamily.forms.Element;
38 import org.riotfamily.forms.ErrorUtils;
39 import org.riotfamily.forms.element.TemplateElement;
40 import org.springframework.util.FileCopyUtils;
41
42
47 public class FlashUpload extends FileUpload {
48
49 public static final String FLASH_CONTENT_TYPE = "application/x-shockwave-flash";
50
51 private String widthProperty;
52
53 private String heightProperty;
54
55 private String versionProperty;
56
57 private boolean isValidSwf = false;
58
59 private int width;
60
61 private int height;
62
63 private int version;
64
65
66 public FlashUpload() {
67 super();
68 }
69
70 protected void destroy() {
71 super.destroy();
72 }
73
74
75 public boolean isPreviewAvailable() {
76 return true;
77 }
78
79 protected Element createPreviewElement() {
80 return new PreviewElement();
81 }
82
83
84 public String getContentType() {
85 return FLASH_CONTENT_TYPE;
86 }
87
88
89 public String getWidthProperty() {
90 return this.widthProperty;
91 }
92
93 public void setWidthProperty(String widthProperty) {
94 this.widthProperty = widthProperty;
95 }
96
97 public String getHeightProperty() {
98 return this.heightProperty;
99 }
100
101 public void setHeightProperty(String heightProperty) {
102 this.heightProperty = heightProperty;
103 }
104
105 public String getVersionProperty() {
106 return versionProperty;
107 }
108
109 public void setVersionProperty(String versionProperty) {
110 this.versionProperty = versionProperty;
111 }
112
113
114 public boolean isValidSwf() {
115 return this.isValidSwf;
116 }
117
118 public int getWidth() {
119 return this.width;
120 }
121
122 public int getHeight() {
123 return this.height;
124 }
125
126 public int getVersion() {
127 return this.version;
128 }
129
130
131 protected void validateFile(File file) {
132 try {
133 parseFlashMovie(file);
134 if (!isValidSwf) {
135 ErrorUtils.reject(this, "flash.invalidFormat");
136 }
137 }
138 catch (IOException e) {
139 ErrorUtils.reject(this, "unexpected");
140 }
141 }
142
143 public void setValue(Object value) {
144 super.setValue(value);
145 if (value == null) {
146 return;
147 }
148
149 try {
150 parseFlashMovie(getFile());
151 EditorBinder editorBinder = getEditorBinding().getEditorBinder();
152 if (widthProperty != null) {
153 width = getIntegerProperty(editorBinder, widthProperty);
154 }
155 if (heightProperty != null) {
156 height = getIntegerProperty(editorBinder, heightProperty);
157 }
158 if (versionProperty != null) {
159 version = getIntegerProperty(editorBinder, versionProperty);;
160 }
161 }
162 catch (IOException e) {
163 isValidSwf = false;
164 }
165 }
166
167 private static int getIntegerProperty(EditorBinder editorBinder, String propertyName) {
168 int result = 0;
169 Object value = editorBinder.getPropertyValue(propertyName);
170 if (value != null && value instanceof Integer ) {
171 result = ((Integer ) value).intValue();
172 }
173 return result;
174 }
175
176 public Object getValue() {
177 EditorBinder editorBinder = getEditorBinding().getEditorBinder();
178 setIntegerProperty(editorBinder, widthProperty, width);
179 setIntegerProperty(editorBinder, heightProperty, height);
180 setIntegerProperty(editorBinder, versionProperty, version);
181 return super.getValue();
182 }
183
184 private static void setIntegerProperty(EditorBinder editorBinder, String propertyName, int value) {
185 if (value != 0) {
186 if (propertyName != null) {
187 editorBinder.setPropertyValue(propertyName, new Integer (value));
188 }
189 }
190 }
191
192 protected void parseFlashMovie(File file) throws IOException {
193 FlashInfo flashInfo = new FlashInfo(file);
194 isValidSwf = flashInfo.isValid();
195 width = flashInfo.getWidth();
196 height = flashInfo.getHeight();
197 version = flashInfo.getVersion();
198 }
199
200 public class PreviewElement extends TemplateElement
201 implements ContentElement {
202
203 public PreviewElement() {
204 setAttribute("flash", FlashUpload.this);
205 }
206
207 public void handleContentRequest(HttpServletRequest request,
208 HttpServletResponse response) throws IOException {
209
210 File file = getFile();
211 if (file != null && file.exists()) {
212 response.setDateHeader("Expires", 0);
213 response.setHeader("Content-Type", getContentType());
214
215 response.setContentLength(getSize().intValue());
216 FileCopyUtils.copy(new FileInputStream (file),
217 response.getOutputStream());
218 }
219 else {
220 response.sendError(HttpServletResponse.SC_NO_CONTENT);
221 }
222 }
223
224 public String getDownloadUrl() {
225 return getFormContext().getContentUrl(this);
226 }
227
228 }
229
230 }
231 |
Popular Tags |
Java API By Example, From Geeks To Geeks.