--- /dev/null
+package org.argeo.app.geo.swt;
+
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CompletionStage;
+
+import org.argeo.api.cms.CmsConstants;
+import org.argeo.api.cms.CmsLog;
+import org.argeo.api.cms.ux.CmsView;
+import org.argeo.app.geo.ux.JsImplementation;
+import org.argeo.app.geo.ux.MapPart;
+import org.argeo.app.ux.SuiteUxEvent;
+import org.argeo.cms.swt.CmsSwtUtils;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.browser.Browser;
+import org.eclipse.swt.browser.BrowserFunction;
+import org.eclipse.swt.browser.ProgressEvent;
+import org.eclipse.swt.browser.ProgressListener;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Composite;
+
+/**
+ * An SWT implementation of {@link MapPart} based on JavaScript execute in a
+ * {@link Browser} control.
+ */
+public class SwtJavaScriptMapPart extends Composite implements MapPart {
+ static final long serialVersionUID = 2713128477504858552L;
+
+ private final static CmsLog log = CmsLog.getLog(SwtJavaScriptMapPart.class);
+
+ private Browser browser;
+
+ private CompletableFuture<Boolean> pageLoaded = new CompletableFuture<>();
+
+ private String jsImplementation = JsImplementation.OPENLAYERS_MAP_PART.getJsClass();
+ private String mapVar = "globalThis.argeoMap";
+
+ private final CmsView cmsView;
+
+ public SwtJavaScriptMapPart(Composite parent, int style) {
+ super(parent, style);
+ parent.setLayout(CmsSwtUtils.noSpaceGridLayout());
+ setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+ setLayout(CmsSwtUtils.noSpaceGridLayout());
+
+ cmsView = CmsSwtUtils.getCmsView(parent);
+
+ browser = new Browser(this, SWT.BORDER);
+ browser.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+
+ // functions exposed to JavaScript
+ new onFeatureSelect();
+
+ browser.setUrl("/pkg/org.argeo.app.geo.js/index.html");
+ browser.addProgressListener(new ProgressListener() {
+ static final long serialVersionUID = 1L;
+
+ @Override
+ public void completed(ProgressEvent event) {
+ try {
+ // create map
+ browser.execute(mapVar + " = new " + jsImplementation + "();");
+ pageLoaded.complete(true);
+ } catch (Exception e) {
+ log.error("Cannot create map in browser", e);
+ pageLoaded.complete(false);
+ }
+ }
+
+ @Override
+ public void changed(ProgressEvent event) {
+ }
+ });
+ }
+
+ @Override
+ public void addPoint(double lng, double lat, String style) {
+ callMethod(mapVar, "addPoint(%f, %f, %s)", lng, lat, style == null ? "'default'" : style);
+ }
+
+ @Override
+ public void addUrlLayer(String url, GeoFormat format) {
+ callMethod(mapVar, "addUrlLayer('%s', '%s')", url, format.name());
+ }
+
+ @Override
+ public void setZoom(int zoom) {
+ callMethod(mapVar, "setZoom(%d)", zoom);
+ }
+
+ @Override
+ public void setCenter(double lng, double lat) {
+ callMethod(mapVar, "setCenter(%f, %f)", lng, lat);
+ }
+
+ protected CompletionStage<Object> callMethod(String jsObject, String methodCall, Object... args) {
+ return evaluate(jsObject + '.' + methodCall, args);
+ }
+
+ /**
+ * Execute this JavaScript on the client side after making sure that the page
+ * has been loaded and the map object has been created.
+ *
+ * @param js the JavaScript code, possibly formatted according to
+ * {@link String#format}, with {@link Locale#ROOT} as locale (for
+ * stability of decimal separator, as expected by JavaScript.
+ * @param args the optional arguments of
+ * {@link String#format(String, Object...)}
+ */
+ protected CompletionStage<Object> evaluate(String js, Object... args) {
+ CompletableFuture<Object> res = pageLoaded.thenApply((ready) -> {
+ if (!ready)
+ throw new IllegalStateException("Map " + mapVar + " is not initialised.");
+ Object result = browser.evaluate(String.format(Locale.ROOT, js, args));
+ return result;
+ });
+ return res.minimalCompletionStage();
+ }
+
+ /** JavaScript function called when a feature is selected on the map. */
+ private class onFeatureSelect extends BrowserFunction {
+
+ onFeatureSelect() {
+ super(browser, onFeatureSelect.class.getSimpleName());
+ }
+
+ @Override
+ public Object function(Object[] arguments) {
+ if (arguments.length == 0)
+ return null;
+ String path = arguments[0].toString();
+ Map<String, Object> properties = new HashMap<>();
+ properties.put(SuiteUxEvent.CONTENT_PATH, '/' + CmsConstants.SYS_WORKSPACE + path);
+ cmsView.sendEvent(SuiteUxEvent.refreshPart.topic(), properties);
+ return null;
+ }
+
+ }
+}
+++ /dev/null
-package org.argeo.app.geo.swt;
-
-import java.util.concurrent.CompletableFuture;
-
-import org.argeo.app.geo.ux.JsImplementation;
-import org.argeo.app.geo.ux.MapPart;
-import org.argeo.cms.swt.CmsSwtUtils;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.browser.Browser;
-import org.eclipse.swt.browser.ProgressEvent;
-import org.eclipse.swt.browser.ProgressListener;
-import org.eclipse.swt.layout.GridData;
-import org.eclipse.swt.widgets.Composite;
-
-public class SwtMapPart extends Composite implements MapPart {
- static final long serialVersionUID = 2713128477504858552L;
- private Browser browser;
-
- // private CompletableFuture<Boolean> renderCompleted = new
- // CompletableFuture<>();
- private CompletableFuture<Boolean> pageLoaded = new CompletableFuture<>();
-
- private String jsImplementation = JsImplementation.OPENLAYERS_MAP_PART.getJsClass();
- private String mapVar = "globalThis.argeoMap";
-
- public SwtMapPart(Composite parent, int style) {
- super(parent, style);
- parent.setLayout(CmsSwtUtils.noSpaceGridLayout());
- setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
- setLayout(CmsSwtUtils.noSpaceGridLayout());
- browser = new Browser(this, SWT.BORDER);
- browser.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
- // functions exposed to JavaScript
-// new onRenderComplete();
- browser.setUrl("/pkg/org.argeo.app.geo.js/index.html");
- browser.addProgressListener(new ProgressListener() {
- static final long serialVersionUID = 1L;
-
- @Override
- public void completed(ProgressEvent event) {
-
- // create map
- browser.execute(mapVar + " = new " + jsImplementation + "();");
-
- // browser.execute("console.log(myInstance.myField)");
- pageLoaded.complete(true);
- }
-
- @Override
- public void changed(ProgressEvent event) {
- }
- });
- }
-
- @Override
- public void addPoint(Double lng, Double lat, String style) {
- pageLoaded.thenAccept((b) -> {
- browser.evaluate(
- mapVar + ".addPoint(" + lng + ", " + lat + "," + (style == null ? "'default'" : style) + ")");
- });
- }
-
- @Override
- public void addUrlLayer(String url, Format format) {
- pageLoaded.thenAccept((b) -> {
- browser.evaluate(mapVar + ".addUrlLayer('" + url + "','" + format.name() + "')");
- });
- }
-
- @Override
- public void setZoom(int zoom) {
- pageLoaded.thenAccept((b) -> {
- browser.evaluate(mapVar + ".setZoom(" + zoom + ")");
- });
- }
-
- @Override
- public void setCenter(Double lng, Double lat) {
- pageLoaded.thenAccept((b) -> {
- browser.evaluate(mapVar + ".setCenter(" + lng + ", " + lat + ")");
- });
-
- }
-
-// private void setRenderCompleted() {
-// renderCompleted.complete(true);
-// }
-//
-// private class onRenderComplete extends BrowserFunction {
-//
-// onRenderComplete() {
-// super(browser, onRenderComplete.class.getSimpleName());
-// }
-//
-// @Override
-// public Object function(Object[] arguments) {
-// setRenderCompleted();
-// System.out.println("Render complete (Java)");
-// return null;
-// }
-//
-// }
-}
projects / gpl / argeo-suite.git / commitdiff