X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.eclipse.ui.rap%2Fsrc%2Forg%2Fargeo%2Feclipse%2Fui%2Fspecific%2FOpenFile.java;fp=org.argeo.eclipse.ui.rap%2Fsrc%2Forg%2Fargeo%2Feclipse%2Fui%2Fspecific%2FOpenFile.java;h=b55521b126d804b07ca2332f2600f9dda9bbae4d;hb=e71b1737815da9f0fdaff1ee1c69773a8c073ef1;hp=0000000000000000000000000000000000000000;hpb=0a92e95ea4c674cf408738d57917db13f336214b;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.eclipse.ui.rap/src/org/argeo/eclipse/ui/specific/OpenFile.java b/org.argeo.eclipse.ui.rap/src/org/argeo/eclipse/ui/specific/OpenFile.java
new file mode 100644
index 000000000..b55521b12
--- /dev/null
+++ b/org.argeo.eclipse.ui.rap/src/org/argeo/eclipse/ui/specific/OpenFile.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.eclipse.ui.specific;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.rap.rwt.client.service.UrlLauncher;
+
+/**
+ * Rap specific command handler to open a file retrieved from the server. It
+ * forwards the request to the correct service after encoding file name and path
+ * in the request URI.
+ * 
+ * The parameter "URI" is used to determine the correct file service, the path
+ * and the file name. An optional file name can be precised to present a
+ * different file name as the one used to retrieve it to the end user/
+ * 
+ * Various instances of this handler with different command ID might coexist in
+ * order to provide context specific download service.
+ * 
+ * The instance specific service is called by its ID and must have been
+ * externally created
+ */
+public class OpenFile extends AbstractHandler {
+	private final static Log log = LogFactory.getLog(OpenFile.class);
+
+	/* DEPENDENCY INJECTION */
+	private String openFileServiceId;
+
+	public final static String PARAM_FILE_NAME = OpenFileService.PARAM_FILE_NAME;
+	public final static String PARAM_FILE_URI = OpenFileService.PARAM_FILE_URI; // "param.fileURI";
+
+	public Object execute(ExecutionEvent event) throws ExecutionException {
+		String fileName = event.getParameter(PARAM_FILE_NAME);
+		String fileUri = event.getParameter(PARAM_FILE_URI);
+
+		// sanity check
+		if (fileUri == null || "".equals(fileUri.trim())
+				|| openFileServiceId == null
+				|| "".equals(openFileServiceId.trim()))
+			return null;
+
+		StringBuilder url = new StringBuilder();
+		url.append(RWT.getServiceManager().getServiceHandlerUrl(
+				openFileServiceId));
+
+		url.append("&").append(PARAM_FILE_NAME).append("=");
+		url.append(fileName);
+		url.append("&").append(PARAM_FILE_URI).append("=");
+		url.append(fileUri);
+
+		String downloadUrl = url.toString();
+		if (log.isTraceEnabled())
+			log.debug("URL : " + downloadUrl);
+
+		UrlLauncher launcher = RWT.getClient().getService(UrlLauncher.class);
+		launcher.openURL(downloadUrl);
+
+		// These lines are useless in the current use case but might be
+		// necessary with new browsers. Stored here for memo
+		// response.setContentType("application/force-download");
+		// response.setHeader("Content-Disposition", contentDisposition);
+		// response.setHeader("Content-Transfer-Encoding", "binary");
+		// response.setHeader("Pragma", "no-cache");
+		// response.setHeader("Cache-Control", "no-cache, must-revalidate");
+		return null;
+	}
+
+	/* DEPENDENCY INJECTION */
+	public void setOpenFileServiceId(String openFileServiceId) {
+		this.openFileServiceId = openFileServiceId;
+	}
+}
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