Examples with IEvaluationContext org.eclipse.core.expressions.IEvaluationContext used on opensource projects

Example 46 with IEvaluationContext

use of org.eclipse.core.expressions.IEvaluationContext in project egit by eclipse.

the class GitActionContributor method createItem.

private CommandContributionItem createItem(String itemAction) {
    IWorkbench workbench = PlatformUI.getWorkbench();
    CommandContributionItemParameter itemParam = new CommandContributionItemParameter(workbench, null, itemAction, STYLE_PUSH);
    IWorkbenchWindow activeWorkbenchWindow = workbench.getActiveWorkbenchWindow();
    IHandlerService hsr = CommonUtils.getService(activeWorkbenchWindow, IHandlerService.class);
    IEvaluationContext ctx = hsr.getCurrentState();
    ctx.addVariable(ACTIVE_MENU_SELECTION_NAME, getContext().getSelection());
    return new CommandContributionItem(itemParam);
}

Example 47 with IEvaluationContext

use of org.eclipse.core.expressions.IEvaluationContext in project egit by eclipse.

the class RebaseCurrentRefCommand method setEnabled.

@Override
public void setEnabled(Object evaluationContext) {
    if (evaluationContext instanceof IEvaluationContext) {
        IEvaluationContext ctx = (IEvaluationContext) evaluationContext;
        Repository repo = SelectionUtils.getRepository(ctx);
        if (repo != null) {
            boolean enabled = isEnabledForState(repo, repo.getRepositoryState());
            setBaseEnabled(enabled);
        } else {
            setBaseEnabled(false);
        }
        return;
    }
    setBaseEnabled(true);
}

Example 48 with IEvaluationContext

use of org.eclipse.core.expressions.IEvaluationContext in project core by jcryptool.

the class AlgorithmTreeViewer method makeAndAssignActions.

/**
 * creates the actions according to the algorithm extension point and assigns them to the
 * viewers double click listener
 */
private void makeAndAssignActions() {
    doubleClickHandler = new AbstractHandler() {

        public Object execute(ExecutionEvent event) {
            TreeObject treeObject = (TreeObject) ((IStructuredSelection) viewer.getSelection()).getFirstElement();
            IEditorReference[] editorReferences = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getEditorReferences();
            if (editorReferences.length == 0 && (!treeObject.getParent().getName().equals(org.jcryptool.core.Messages.applicationActionBarAdvisor_Menu_Algorithms_PRNG))) {
                AlgorithmView.showMessage(Messages.AlgorithmView_warning_message_no_active_editor);
            } else {
                final ICommandService commandService = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);
                Iterator<CommandInfo> it9 = algorithmList.iterator();
                CommandInfo commandInfo = null;
                while (it9.hasNext()) {
                    commandInfo = it9.next();
                    ShadowAlgorithmHandler handler = (ShadowAlgorithmHandler) commandInfo.getHandler();
                    String commandId = commandInfo.getCommandId();
                    if (commandId != null && treeObject.getName().equals(handler.getText())) {
                        Command command = commandService.getCommand(commandId);
                        try {
                            return command.executeWithChecks(event);
                        } catch (Exception ex) {
                            LogUtil.logError(ViewsPlugin.PLUGIN_ID, ex);
                            return (null);
                        }
                    }
                }
            }
            return (null);
        }
    };
    addDoubleClickListener(new IDoubleClickListener() {

        public void doubleClick(final DoubleClickEvent event) {
            Object obj = ((IStructuredSelection) viewer.getSelection()).getFirstElement();
            if (obj instanceof TreeParent) {
                if (viewer.getTree().getSelection()[0].getExpanded()) {
                    viewer.collapseToLevel(obj, 1);
                } else {
                    viewer.expandToLevel(obj, 1);
                }
            } else if (obj instanceof TreeObject) {
                try {
                    final IHandlerService handlerService = (IHandlerService) PlatformUI.getWorkbench().getService(IHandlerService.class);
                    IEvaluationContext evaluationContext = handlerService.createContextSnapshot(true);
                    ExecutionEvent executionEvent = new ExecutionEvent(null, Collections.EMPTY_MAP, null, evaluationContext);
                    // run assigned action
                    doubleClickHandler.execute(executionEvent);
                } catch (ExecutionException ex) {
                    LogUtil.logError(ViewsPlugin.PLUGIN_ID, ex);
                }
            }
        }
    });
    addSelectionChangedListener(new ISelectionChangedListener() {

        public void selectionChanged(final SelectionChangedEvent event) {
            Object treeObject = ((IStructuredSelection) viewer.getSelection()).getFirstElement();
            if (treeObject instanceof TreeParent) {
                // $NON-NLS-1$
                PlatformUI.getWorkbench().getHelpSystem().displayHelp(ViewsPlugin.PLUGIN_ID + ".algorithmsView");
                getControl().setFocus();
            } else if (treeObject instanceof TreeObject) {
                AlgorithmView.showContextHelp(extensionPointId, ((TreeObject) treeObject).getName());
                getControl().setFocus();
            }
        }
    });
}

Example 49 with IEvaluationContext

use of org.eclipse.core.expressions.IEvaluationContext in project core by jcryptool.

the class CryptoContributionItem method run.

/* This should hopefully be obsolete
    public void run(IAction cryptoAction) {
        final IHandlerService handlerService = (IHandlerService) view.getSite().getService(IHandlerService.class);
        IEvaluationContext evaluationContext = handlerService.createContextSnapshot(true);
        ExecutionEvent event = new ExecutionEvent(null, Collections.EMPTY_MAP, null, evaluationContext);

        try {
            handler.execute(event);
            cryptoAction.run();
        } catch (ExecutionException ex) {
            LogUtil.logError(FileExplorerPlugin.PLUGIN_ID, ex);
        }
    }
    */
public void run(String commandId) {
    final IHandlerService handlerService = (IHandlerService) view.getSite().getService(IHandlerService.class);
    IEvaluationContext evaluationContext = handlerService.createContextSnapshot(true);
    ExecutionEvent event = new ExecutionEvent(null, Collections.EMPTY_MAP, null, evaluationContext);
    final ICommandService commandService = (ICommandService) view.getSite().getService(ICommandService.class);
    Command command = commandService.getCommand(commandId);
    try {
        handler.execute(event);
        command.executeWithChecks(event);
    } catch (Exception ex) {
        LogUtil.logError(FileExplorerPlugin.PLUGIN_ID, ex);
    }
}