1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/**
*
*/
package org.openembedded.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.openembedded.bc.bitbake.BBRecipe;
import org.openembedded.bc.bitbake.BBSession;
import org.openembedded.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) {
e.printStackTrace();
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 = new BBRecipe(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;
}
}
}
|
