Support Outline view

[xkr47]

It would be nice to show some information about the currently active robot file in the Outline view. The view could include:

• list of test cases
• list of keywords
• list of variables

The lists should naturally be kept up-to-date as changes are made.

Optional maybe-nice-to-have features:

• clicking a list entry moves the cursor to the associated line in the editor
• allow alphabetical sorting of entries
• list included resource / variable files
• list setup/teardown and other settings
• icons

[xkr47]

Work has been started on this issue; 6823ada contains a version that updates the view only when opening a robot file.

[xkr47]

Throws NPE when opening new file in windows:

!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
java.lang.NullPointerException
    at com.nitorcreations.robotframework.eclipseide.builder.parser.ArgumentPreParser.lookForGlobalTestTemplate(ArgumentPreParser.java:660)
    at com.nitorcreations.robotframework.eclipseide.builder.parser.ArgumentPreParser.parseAll(ArgumentPreParser.java:169)
    at com.nitorcreations.robotframework.eclipseide.builder.parser.RobotFile.parse(RobotFile.java:168)
    at com.nitorcreations.robotframework.eclipseide.builder.parser.RobotFile.get(RobotFile.java:141)
    at com.nitorcreations.robotframework.eclipseide.builder.parser.RobotFile.get(RobotFile.java:65)
    at com.nitorcreations.robotframework.eclipseide.editors.outline.RobotOutlineContentProvider.getElements(RobotOutlineContentProvider.java:59)
    at org.eclipse.jface.viewers.StructuredViewer.getRawChildren(StructuredViewer.java:1010)
    at org.eclipse.jface.viewers.ColumnViewer.getRawChildren(ColumnViewer.java:703)
    at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1351)
    at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:391)
    at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:917)
    at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:620)
    at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:820)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:797)
    at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:644)
    at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:768)
    at org.eclipse.jface.viewers.AbstractTreeViewer.internalInitializeTree(AbstractTreeViewer.java:1548)
    at org.eclipse.jface.viewers.TreeViewer.internalInitializeTree(TreeViewer.java:833)
    at org.eclipse.jface.viewers.AbstractTreeViewer$5.run(AbstractTreeViewer.java:1532)
    at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1443)
    at org.eclipse.jface.viewers.TreeViewer.preservingSelection(TreeViewer.java:403)
    at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1404)
    at org.eclipse.jface.viewers.AbstractTreeViewer.inputChanged(AbstractTreeViewer.java:1525)
    at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:280)
    at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1690)
    at com.nitorcreations.robotframework.eclipseide.editors.outline.RobotOutlinePage.createControl(RobotOutlinePage.java:52)

[xkr47]

NPE fixed in d5ed5b0

[xkr47]

Incomplete work on this issue was reverted from the master branch and resumed in the new issue_49 branch in order to get the master branch into a state where it could be merged to the release branch.