[英]Programming eclipse plugin for searching file within a project (basic help needed)
I have to program an Eclipse-Plugin but I have never done this before so I have some questions. 我必须对Eclipse-Plugin进行编程,但之前从未做过此操作,因此我有一些疑问。
The plugin should appear in the context menu when you right click a Java project in the project explorer of Eclipse. 在Eclipse的项目浏览器中右键单击Java项目时,该插件应显示在上下文菜单中。 It should open a dialog where the user can enter a file name he is looking for within the selected project and then the file gets highlighted (if there is a file with this name). 它应该打开一个对话框,用户可以在其中输入所选项目中要查找的文件名,然后突出显示该文件(如果存在具有该名称的文件)。
What I managed to do so far is to setup the plugin development project, the extension point for the plugin and the dialog. 到目前为止,我设法完成的工作是设置插件开发项目,插件的扩展点和对话框。
But now I don't know how to get access to the selected project. 但是现在我不知道如何访问所选项目。 Can you tell me how this is done or a link to the corresponding API? 您能告诉我这是如何完成的,还是可以链接到相应的API?
Thanks in advance :) 提前致谢 :)
I assume you have a Handler class for the right-click action in your plugin. 我假设您在插件中有一个用于右键单击操作的Handler类。 The Handler extends the AbstractHandler and overrides the method execute(..). Handler扩展AbstractHandler并覆盖方法execute(..)。
Then you can do something like this: 然后,您可以执行以下操作:
public class YourHandler extends AbstractHandler {
private ExecutionEvent event;
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
// First get the tree of the right-clicked project.
ISelection sel = HandlerUtil.getActiveMenuSelection(event);
IResource resource = null;
IProject project = null;
try {
IStructuredSelection selection = (IStructuredSelection) sel;
// Get the first element of the tree (return type Object).
Object firstElement = selection.getFirstElement();
// Get the IResource and from this the IProject of the selection.
if (firstElement instanceof IAdaptable) {
IResource resource = (IResource) (((IAdaptable) firstElement)
.getAdapter(IResource.class));
project = res.getProject();
}
} catch (ClassCastException e) {
// Do nothing.
}
// Then you can do something with the project.
return project;
}
Look also at the Eclipse API for IProject for what you can do: http://help.eclipse.org/kepler/topic/org.eclipse.platform.doc.isv/reference/api/org/eclipse/core/resources/IProject.html 还要查看IProject的Eclipse API,以了解您可以做什么: http : //help.eclipse.org/kepler/topic/org.eclipse.platform.doc.isv/reference/api/org/eclipse/core/resources/ IProject.html
For example getting a file from name: 例如,从名称获取文件:
IFile getFile(String name) IFile getFile(字符串名称)
Returns a handle to the file with the given name in this project. 返回此项目中具有给定名称的文件的句柄。
Hope this helps. 希望这可以帮助。
By the way: if you need some nice tutorials about developing Eclipse plugins, I can recommend this website http://www.vogella.com/eclipse.html 顺便说一句:如果您需要一些有关开发Eclipse插件的不错的教程,我可以推荐这个网站http://www.vogella.com/eclipse.html
Cheers. 干杯。
I write some util class to do the job. 我编写了一些util类来完成这项工作。 Hope it help you 希望对你有帮助
public class SelectionUtil {
private IWorkbenchWindow window;
private IWorkbenchPage activePage;
private TreeSelection treeSelection;
private TreePath[] treePaths;
HashMap<Object, Object> selectData;
private IProject theProject;
private IResource theResource;
private IFile theFile;
private IPackageFragment theFragment;
private String workspaceName;
private String projectName;
private String fileName;
private String fileNameFile;
private String fragmentName;
private TreePath treePath;
public SelectionUtil(ExecutionEvent event) {
this.window = HandlerUtil.getActiveWorkbenchWindow(event);
// Get the active WorkbenchPage
this.activePage = this.window.getActivePage();
// Get the Selection from the active WorkbenchPage page
ISelection selection = this.activePage.getSelection();
if (selection instanceof ITreeSelection) {
this.treeSelection = (TreeSelection) selection;
this.treePaths = treeSelection.getPaths();
this.treePath = treePaths[0];
selectData = new ProjectSelectionUtil()
.populatePojectData(treePath);
setData();
} else {
String selectionClass = selection.getClass().getSimpleName();
MessageDialog
.openError(
this.window.getShell(),
"Unexpected Selection Class",
String.format(
"Expected a TreeSelection but got a %s instead.\nProcessing Terminated.",
selectionClass));
}
}
public void setData() {
this.theProject = (IProject) selectData.get("Project");
this.theResource = (IResource) selectData.get("Resource");
this.theFragment = (IPackageFragment) selectData.get("Fragment");
this.workspaceName = this.theResource.getWorkspace().getRoot()
.getLocation().toOSString();
this.projectName = this.theProject.getName();
if (this.theFragment != null)
this.fragmentName = this.theFragment.getElementName();
try {
if (!this.theResource.getName().isEmpty()
&& this.theResource.getName().length() > 5)
this.fileName = this.theResource.getName().substring(0,
this.theResource.getName().length() - 5);
} catch (NullPointerException e) {
System.out
.println(" GactusWindowSelectionUtil SetData NullPointerException"
+ e.getMessage() + e.getLocalizedMessage());
} catch (StringIndexOutOfBoundsException e) {
System.out
.println(" StringIndexOutOfBoundsException SetData NullPointerException"
+ e.getMessage() + e.getLocalizedMessage());
}
}
public String toString() {
ProjectInformation myProject = new ProjectInformation(theProject);
return "Segment Count " + treePath.getSegmentCount() + " Iproject"
+ myProject.toString();
}
}
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