Consider this example on GWT-OpenLayers showcase. The example implements the navigate and box selection features separately. How can I implement the navigate and box selection feature together? i.e. I make a selection only when I press 'Shift Key' or 'Ctrl Key', and navigate rest of the time.
I ended up doing the following which worked for me.
Create a map with no control using:
defaultMapOptions.setControls(new JObjectArray(new JSObject[0]));
Then add custom controls to the map. (Here I'm adding just one)
map.addControl(new PanZoomBar());
The PanZoomBar can help in the panning as well as zooming. This fixes the navigation. As for the box selection,
SelectFeatureOptions selectBoxFeatureOptions = new SelectFeatureOptions();
selectBoxFeatureOptions.setBox(true);
SelectFeature boxSelectFeature = new SelectFeature(vectorLayer,selectBoxFeatureOptions);
boxSelectFeature.setClickOut(false);
boxSelectFeature.setToggle(false);
boxSelectFeature.setMultiple(false);
boxSelectFeature.setToggleKey("ctrlKey");
boxSelectFeature.setMultipleKey("shiftKey");
map.addControl(boxSelectFeature);