From 41ac47d732eed8392d60d0f6773e5a279d49b999 Mon Sep 17 00:00:00 2001
From: Adrian Dudau <adrian.dudau@enea.com>
Date: Thu, 12 Dec 2013 13:36:50 +0100
Subject: initial commit of Enea Linux 3.1

Migrated from the internal git server on the dora-enea branch

Signed-off-by: Adrian Dudau <adrian.dudau@enea.com>
---
 .../bc/ui/editors/bitbake/BBVariableTextHover.java | 118 +++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 plugins/org.yocto.bc.ui/src/org/yocto/bc/ui/editors/bitbake/BBVariableTextHover.java

(limited to 'plugins/org.yocto.bc.ui/src/org/yocto/bc/ui/editors/bitbake/BBVariableTextHover.java')

diff --git a/plugins/org.yocto.bc.ui/src/org/yocto/bc/ui/editors/bitbake/BBVariableTextHover.java b/plugins/org.yocto.bc.ui/src/org/yocto/bc/ui/editors/bitbake/BBVariableTextHover.java
new file mode 100644
index 0000000..9478423
--- /dev/null
+++ b/plugins/org.yocto.bc.ui/src/org/yocto/bc/ui/editors/bitbake/BBVariableTextHover.java
@@ -0,0 +1,118 @@
+/**
+ * 
+ */
+package org.yocto.bc.ui.editors.bitbake;
+
+import java.io.File;
+import java.util.Map;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.jobs.Job;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.ITextHover;
+import org.eclipse.jface.text.ITextViewer;
+import org.eclipse.jface.text.Region;
+
+import org.yocto.bc.bitbake.BBRecipe;
+import org.yocto.bc.bitbake.BBSession;
+import org.yocto.bc.ui.Activator;
+
+/**
+ * Maps BB Variables in the editor to BBSession
+ * @author kgilmer
+ *
+ */
+class BBVariableTextHover implements ITextHover {
+	private final BBSession session;
+	private volatile Map envMap;
+
+	public BBVariableTextHover(BBSession session, String file) {
+		this.session = session;
+		envMap = session;
+		LoadRecipeJob loadRecipeJob = new LoadRecipeJob(getFilename(file), file);
+		loadRecipeJob.schedule();
+	}
+
+	private String getFilename(String file) {
+		
+		String [] elems = file.split(File.separator);
+		
+		return elems[elems.length - 1];
+	}
+
+	public IRegion getHoverRegion(ITextViewer tv, int off) {
+		return new Region(off, 0);
+	}
+
+	public String getHoverInfo(ITextViewer tv, IRegion r) {
+		try {
+			IRegion lineRegion = tv.getDocument().getLineInformationOfOffset(r.getOffset());
+
+			return getBBVariable(tv.getDocument().get(lineRegion.getOffset(), lineRegion.getLength()).toCharArray(), r.getOffset() - lineRegion.getOffset());
+		} catch (Exception e) {
+			return "";
+		}
+	}
+
+	private String getBBVariable(char[] line, int offset) {
+		// Find start of word.
+		int i = offset;
+		
+		while (line[i] != ' ' && line[i] != '$' && i > 0) {
+			i--;
+		}
+		
+		if (i < 0 || line[i] != '$') {
+			return "";  //this is not a BB variable.
+		}
+		
+		// find end of word
+		int start = i;
+		i = offset;
+		
+		while (line[i] != ' ' && line[i] != '}' && i <= line.length) {
+			i++;
+		}
+		
+		if (line[i] != '}') {
+			return "";  //this bb variable didn't terminate as expected
+		}
+		
+		String key = new String(line, start + 2, i - start - 2);
+		String val = (String) envMap.get(key);
+		
+		if (val == null) {
+			val = "";
+		}
+		
+		if (val.length() > 64) {
+			val = val.substring(0, 64) + '\n' + val.substring(65);
+		}
+		
+		return val;
+	}
+	
+	private class LoadRecipeJob extends Job {
+		private final String filePath;
+
+		public LoadRecipeJob(String name, String filePath) {
+			super("Extracting BitBake environment for " + name);
+			this.filePath = filePath;
+		}
+
+		@Override
+		protected IStatus run(IProgressMonitor mon) {
+			try {
+				BBRecipe recipe = Activator.getBBRecipe(session, filePath);
+				recipe.initialize();
+				envMap = recipe;
+			} catch (Exception e) {
+				return new Status(IStatus.WARNING, Activator.PLUGIN_ID, "Unable to load session for " + filePath, e);
+			} 
+			
+			return Status.OK_STATUS;
+		}
+	}
+}
\ No newline at end of file
-- 
cgit v1.2.3-54-g00ecf