+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2007, 2014 Association for Decentralized Information Management
- * in Industry THTH ry.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * VTT Technical Research Centre of Finland - initial API and implementation
- * Semantum Oy
- *******************************************************************************/
-package org.simantics.workbench.internal.contributions.search;
-
-import java.net.URL;
-
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.browser.Browser;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.ui.PlatformUI;
-import org.eclipse.ui.part.ViewPart;
-import org.simantics.Simantics;
-import org.simantics.db.Session;
-import org.simantics.db.layer0.genericrelation.Dependencies;
-import org.simantics.db.layer0.request.ActiveModels;
-import org.simantics.db.management.ISessionContext;
-import org.simantics.db.management.ISessionContextChangedListener;
-import org.simantics.db.management.SessionContextChangedEvent;
-import org.simantics.db.service.LifecycleSupport;
-import org.simantics.utils.ui.SWTUtils;
-import org.simantics.workbench.search.ISearchService;
-import org.simantics.workbench.search.ISearchService.ResultBrowser;
-import org.simantics.workbench.search.SearchQuery;
-
-/**
- * A very non-configurable Web browser view for search trim.
- *
- * @author Tuukka Lehtonen
- */
-public class BrowserView extends ViewPart {
-
- /**
- * ID of this view's plug-in extension.
- */
- public static final String ID = "org.simantics.workbench.search.browser";
-
- /**
- * Used as a property of this view to keep track of the last search query
- * performed with this view. This information is needed to know whether or
- * not to initialize the view with default contents after it has been
- * created. This depends on whether the creation was caused by a simple
- * activation of the view or an actual search being performed.
- */
- public static final String LAST_QUERY_PROPERTY = "org.simantics.workbench.search.browser.lastQuery";
-
- private Browser browser;
- private boolean disposed;
- private ActiveModelsListener currentListener;
-
- @Override
- public void createPartControl(Composite parent) {
- browser = new org.eclipse.swt.browser.Browser(parent, SWT.NONE);
-
- // Ensure the view receives some browser content even when no searches
- // have been performed yet.
- scheduleInitializeViewContent(false);
-
- // Make sure that the contents of the view are reset every time the set
- // of active models changes. This must be because what is searchable depends
- // completely on the active models. When there is no active model, the search
- // will find nothing.
- Simantics.getSessionContextProvider().addContextChangedListener(sessionListener);
- trackActiveModels(Simantics.peekSession());
- }
-
- private ISessionContextChangedListener sessionListener = new ISessionContextChangedListener() {
- @Override
- public void sessionContextChanged(SessionContextChangedEvent event) {
- ISessionContext ctx = event.getNewValue();
- final Session newSession = ctx != null ? ctx.peekSession() : null;
- // Synchronize session changes to the UI thread to keep threading more predictable.
- SWTUtils.asyncExec(browser, new Runnable() {
- @Override
- public void run() {
- if (!disposed)
- trackActiveModels(newSession);
- }
- });
- }
- };
-
- private void trackActiveModels(Session session) {
- if (currentListener != null) {
- currentListener.dispose();
- currentListener = null;
- }
- if (session != null) {
-
- LifecycleSupport lfs = session.peekService(LifecycleSupport.class);
- if (lfs == null)
- return;
- if (lfs.isClosed())
- return;
-
- ActiveModelsListener listener = new ActiveModelsListener(new Runnable() {
- @Override
- public void run() {
- scheduleInitializeViewContent(true);
- }
- });
-
- // Make sure that the listener is disposed if the session is disposed.
- session.registerService(ActiveModelsListener.class, listener);
- session.asyncRequest(new ActiveModels(Simantics.getProjectResource()), listener);
- this.currentListener = listener;
- }
- }
-
- protected void scheduleInitializeViewContent(final boolean force) {
- SWTUtils.asyncExec(browser, new Runnable() {
- @Override
- public void run() {
- if (disposed)
- return;
- // If SearchServiceImpl hasn't performed any queries yet,
- // then we shall initialize the view contents at this point.
- String lastQuery = getPartProperty(LAST_QUERY_PROPERTY);
- if (force || lastQuery == null)
- initializeViewContent();
- }
- });
- }
-
- protected void initializeViewContent() {
- SearchQuery query = new SearchQuery("");
- query.setSearchFlag(Dependencies.FIELD_NAME_SEARCH, "on");
- query.setSearchFlag(Dependencies.FIELD_TYPES_SEARCH, "on");
- ISearchService searchService = (ISearchService) PlatformUI.getWorkbench().getService(ISearchService.class);
- if (searchService != null)
- searchService.performQuery(query, ResultBrowser.VIEW, false);
- }
-
- @Override
- public void dispose() {
- disposed = true;
- super.dispose();
- }
-
- public boolean isDisposed() {
- return disposed;
- }
-
- @Override
- public void setFocus() {
- browser.setFocus();
- }
-
- public org.eclipse.swt.browser.Browser getBrowser() {
- return browser;
- }
-
- public void setUrl(URL url) {
- getBrowser().setUrl(url.toString());
- }
-
- @Override
- public void setContentDescription(String description) {
- super.setContentDescription(description);
- }
-
-}
Code Review / simantics / platform.git / blobdiff