Working JavaScript charts

[gpl/argeo-suite.git] / swt / org.argeo.app.geo.swt / src / org / argeo / app / geo / swt / SwtJsMapPart.java

diff --git a/swt/org.argeo.app.geo.swt/src/org/argeo/app/geo/swt/SwtJsMapPart.java b/swt/org.argeo.app.geo.swt/src/org/argeo/app/geo/swt/SwtJsMapPart.java
new file mode 100644 (file)
index 0000000..5e90d39
--- /dev/null
+++ b/swt/org.argeo.app.geo.swt/src/org/argeo/app/geo/swt/SwtJsMapPart.java
@@ -0,0 +1,99 @@
+package org.argeo.app.geo.swt;
+
+import java.util.concurrent.CompletionStage;
+import java.util.function.Consumer;
+import java.util.function.Function;
+import org.argeo.app.geo.GeoUtils;
+import org.argeo.app.geo.ux.JsImplementation;
+import org.argeo.app.geo.ux.MapPart;
+import org.argeo.app.swt.js.SwtBrowserJsPart;
+import org.eclipse.swt.widgets.Composite;
+
+/**
+ * An SWT implementation of {@link MapPart} based on JavaScript.
+ */
+public class SwtJsMapPart extends SwtBrowserJsPart implements MapPart {
+       static final long serialVersionUID = 2713128477504858552L;
+
+       private String jsImplementation = JsImplementation.OPENLAYERS_MAP_PART.getJsClass();
+       private final String mapName;// = "argeoMap";
+
+       public SwtJsMapPart(String mapName, Composite parent, int style) {
+               super(parent, style, "/pkg/org.argeo.app.js/geo.html");
+               this.mapName = mapName;
+       }
+
+       @Override
+       protected void init() {
+               // create map
+               doExecute(getJsMapVar() + " = new " + jsImplementation + "('" + mapName + "');");
+       }
+
+       /*
+        * MapPart.js METHODS
+        */
+
+       @Override
+       public void addPoint(double lng, double lat, String style) {
+               callMapMethod("addPoint(%f, %f, %s)", lng, lat, style == null ? "'default'" : style);
+       }
+
+       @Override
+       public void addUrlLayer(String url, GeoFormat format, String style) {
+               callMapMethod("addUrlLayer('%s', '%s', %s, false)", url, format.name(), style);
+       }
+
+       public void addCssUrlLayer(String url, GeoFormat format, String css) {
+               String style = GeoUtils.createSldFromCss("layer", "Layer", css);
+               callMapMethod("addUrlLayer('%s', '%s', '%s', true)", url, format.name(), style);
+       }
+
+       @Override
+       public void setZoom(int zoom) {
+               callMapMethod("setZoom(%d)", zoom);
+       }
+
+       @Override
+       public void setCenter(double lng, double lat) {
+               callMapMethod("setCenter(%f, %f)", lng, lat);
+       }
+
+       protected CompletionStage<Object> callMapMethod(String methodCall, Object... args) {
+               return callMethod(getJsMapVar(), methodCall, args);
+       }
+
+       private String getJsMapVar() {
+               return getJsVarName(mapName);
+       }
+
+       /*
+        * CALLBACKS
+        */
+       public void onFeatureSelected(Consumer<FeatureSelectedEvent> toDo) {
+               addCallback("FeatureSelected", (arr) -> {
+                       toDo.accept(new FeatureSelectedEvent((String) arr[0]));
+                       return null;
+               });
+       }
+
+       public void onFeatureSingleClick(Consumer<FeatureSingleClickEvent> toDo) {
+               addCallback("FeatureSingleClick", (arr) -> {
+                       toDo.accept(new FeatureSingleClickEvent((String) arr[0]));
+                       return null;
+               });
+       }
+
+       public void onFeaturePopup(Function<FeaturePopupEvent, String> toDo) {
+               addCallback("FeaturePopup", (arr) -> {
+                       return toDo.apply(new FeaturePopupEvent((String) arr[0]));
+               });
+       }
+
+       protected void addCallback(String suffix, Function<Object[], Object> toDo) {
+               getReadyStage().thenAccept((ready) -> {
+                       String functionName = createJsFunction(mapName + "__on" + suffix, toDo);
+                       doExecute(getJsMapVar() + ".callbacks['on" + suffix + "']=" + functionName + ";");
+                       callMethod(mapName, "enable" + suffix + "()");
+               });
+       }
+}