在 application.e4xmi 文件中建立透视图后,我无法通过调用 IWorkbenchPage.resetPerspective() 来重置透视图。
Create new CopyPerspectiveSnippetProcessor. This will copy the perspectives in your snippets to your PerspectiveStack on startup. This makes it so you don't have to maintain two copies of each perspective element in your e4xmi file.
package com.example.application.processors;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.ui.model.application.MApplication;
import org.eclipse.e4.ui.model.application.ui.MUIElement;
import org.eclipse.e4.ui.model.application.ui.advanced.MPerspective;
import org.eclipse.e4.ui.model.application.ui.advanced.MPerspectiveStack;
import org.eclipse.e4.ui.workbench.modeling.EModelService;
/**
* Copies all snippet perspectives to perspective stack called "MainPerspectiveStack" In order to register/reset perspective and not have to sync two copies in
* e4xmi.
*
*/
public class CopyPerspectiveSnippetProcessor {
private static final String MAIN_PERSPECTIVE_STACK_ID = "MainPerspectiveStack";
@Execute
public void execute(EModelService modelService, MApplication application) {
MPerspectiveStack perspectiveStack = (MPerspectiveStack) modelService.find(MAIN_PERSPECTIVE_STACK_ID, application);
// Only do this when no other children, or the restored workspace state will be overwritten.
if (!perspectiveStack.getChildren().isEmpty())
return;
// clone each snippet that is a perspective and add the cloned perspective into the main PerspectiveStack
boolean isFirst = true;
for (MUIElement snippet : application.getSnippets()) {
if (snippet instanceof MPerspective) {
MPerspective perspectiveClone = (MPerspective) modelService.cloneSnippet(application, snippet.getElementId(), null);
perspectiveStack.getChildren().add(perspectiveClone);
if (isFirst) {
perspectiveStack.setSelectedElement(perspectiveClone);
isFirst = false;
}
}
}
}
}
Register your CopyPerspectiveSnippetProcess into your plugin.xml file.
<extension id="MainAppModel" point="org.eclipse.e4.workbench.model">
<processor beforefragment="false" class="com.example.application.processors.CopyPerspectiveSnippetProcessor"/>
</extension>
Reset the perspective as normal. You will also want to set the perspective stack and the current perspective to visible, as these can sometimes be set to invisible. A sample handler might look like:
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.ui.model.application.MApplication;
import org.eclipse.e4.ui.model.application.ui.advanced.MPerspectiveStack;
import org.eclipse.e4.ui.workbench.modeling.EModelService;
import org.eclipse.ui.PlatformUI;
public class ResetPerspectiveHandler {
private static final String MAIN_PERSPECTIVE_STACK_ID = "MainPerspectiveStack";
@Execute
public void execute(EModelService modelService, MApplication application) {
MPerspectiveStack perspectiveStack = (MPerspectiveStack) modelService.find(MAIN_PERSPECTIVE_STACK_ID, application);
PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().resetPerspective();
perspectiveStack.getSelectedElement().setVisible(true);
perspectiveStack.setVisible(true);
}
}
PlatformUI
不是一个纯 e4 应用程序的正确解决方案。 - alphakermitPlatformUI
强制你实现许多“旧”的 3.x 工作台捆绑依赖项,而通常会尝试避免设置纯 e4 应用程序。请参见 V Kash Singh 的答案以获取正确的“e4方式”(他代码中的第二种方法)。 - alphakermitpublic class ResetPrespectiveAddOn implements EventHandler {
private static final String MY_PERSPECTIVE_ID = "myPrespectiveId";
@Inject
private IEventBroker broker;
@PostConstruct
public void loadPrespective() {
broker.subscribe(UIEvents.ElementContainer.TOPIC_SELECTEDELEMENT, this);
}
@SuppressWarnings("restriction")
@Override
public void handleEvent(Event event) {
//UIEvents.EventTags.ELEMENT is trigger for all UI activity
Object property = event.getProperty(UIEvents.EventTags.ELEMENT);
if (!(property instanceof PerspectiveStackImpl)) {
return;
}
// Reset perspective logic .
IEclipseContext serviceContext = E4Workbench.getServiceContext();
final IEclipseContext appContext = (IEclipseContext) serviceContext.getActiveChild();
EModelService modelService = appContext.get(EModelService.class);
MApplication application = serviceContext.get(MApplication.class);
MWindow mWindow = application.getChildren().get(0);
PerspectiveStackImpl perspectiveStack = (PerspectiveStackImpl) property;
List<MPerspective> children = perspectiveStack.getChildren();
for (MPerspective myPerspective : children) {
if (myPerspective.getElementId().equals(MY_PERSPECTIVE_ID)) {
//find active perspective
MPerspective activePerspective = modelService.getActivePerspective(mWindow);
if(activePerspective.getElementId().equals(MY_PERSPECTIVE_ID))
//Reseting perspective e3 way
PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().resetPerspective();
// till now there is no direct e4 way to reset perspective
// but u can Add and remove e4 perspective with this code code
EPartService partService = serviceContext.get(EPartService.class);
MPerspectiveStack perspectiveStack = (MPerspectiveStack) (MElementContainer<?>) activePerspective.getParent();
int indexOf = perspectiveStack.getChildren().indexOf(activePerspective);
perspectiveStack.getChildren().remove(indexOf);
perspectiveStack.getChildren().add(myPerspective);
partService.switchPerspective(myPerspective);
}
}
}}