ModifyFeature.html 19.6 KB
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<html>
<head>
    <script src="../../lib/OpenLayers.js"></script>
    <script type="text/javascript">
    
    function test_initialize(t) {
        t.plan(3);
        var layer = {
            styleMap: {createSymbolizer: function(){}},
            events: {
                on: function() {},
                un: function() {}
            }
        };
        var options = {
            geometryTypes: "bar"
        };
        var control = new OpenLayers.Control.ModifyFeature(layer, options);
        
        t.ok(control.layer == layer,
             "constructor sets layer correctly");
        t.eq(control.selectControl.geometryTypes, "bar",
             "constructor sets options correctly on feature handler");
        t.eq(control.mode, OpenLayers.Control.ModifyFeature.RESHAPE,
             "constructor initializes modification mode correctly");
        control.destroy();
    }

    function test_destroy(t) {
        t.plan(2);
        var map = new OpenLayers.Map("map");
        var layer = new OpenLayers.Layer.Vector();
        map.addLayer(layer);
        var control = new OpenLayers.Control.ModifyFeature(layer);
        control.selectControl.destroy = function() {
            t.ok(true,
                 "control.destroy calls destroy on select control");
        }
        control.dragControl.destroy = function() {
            t.ok(true,
                 "control.destroy calls destroy on feature handler");
        }
        control.destroy();
        map.destroy();
    }
    
    function test_activate(t) {
        t.plan(2);
        var map = new OpenLayers.Map("map");
        var layer = new OpenLayers.Layer.Vector();
        map.addLayer(layer);
        var control = new OpenLayers.Control.ModifyFeature(layer);
        map.addControl(control);
        t.ok(!control.selectControl.active,
             "select control is not active prior to activating control");
        control.activate();
        t.ok(control.selectControl.active,
             "select control is active after activating control");

        map.destroy();
    }

    function test_initDeleteCodes(t) {
        t.plan(3);
        var layer = new OpenLayers.Layer.Vector();
        var control = new OpenLayers.Control.ModifyFeature(layer, {'deleteCodes': 46});
        t.eq(control.deleteCodes[0], 46, "Delete code properly turned into an array.");
        var control = new OpenLayers.Control.ModifyFeature(layer);
        t.eq(control.deleteCodes[0], 46, "Default deleteCodes include delete"); 
        t.eq(control.deleteCodes[1], 68, "Default deleteCodes include 'd'"); 
        
        control.destroy();
        layer.destroy();
    }
    
    function test_handleKeypress(t) {
        t.plan(10);

        /**
         * There are two things that we want to test here
         * 1) test that control.deleteCodes are respected
         * 3) test that a vertex is properly deleted
         *
         * In the future, feature deletion may be added to the control.
         */
        
        var layer = new OpenLayers.Layer.Vector();
        var control = new OpenLayers.Control.ModifyFeature(layer);
        var delKey = 46;
        var dKey = 100;
        control.deleteCodes = [delKey, dKey];
        
        // test that a polygon vertex is deleted for all delete codes
        var point = new OpenLayers.Feature.Vector(
            new OpenLayers.Geometry.Point()
        );
        var poly = new OpenLayers.Feature.Vector(
            new OpenLayers.Geometry.Polygon()
        );
        
        // mock up vertex deletion
        control.dragControl.feature = point;
        control.feature = poly;
        control.vertices = [point];
        point.geometry.parent = {
            removeComponent: function(geometry) {
                t.eq(geometry.id, point.geometry.id,
                     "vertex deletion: removeComponent called on parent with proper geometry");
            }
        };
        layer.events.on({"featuremodified": function(event) {
            t.eq(event.feature.id, poly.id, "vertex deletion: featuremodifed triggered");
        }});
        layer.drawFeature = function(feature) {
            t.eq(feature.id, poly.id,
                 "vertex deletion: drawFeature called with the proper feature");
        };
        control.resetVertices = function() {
            t.ok(true, "vertex deletion: resetVertices called");
        };
        control.onModification = function(feature) {
            t.eq(feature.id, poly.id,
                 "vertex deletion: onModification called with the proper feature");
        };
        // run the above four tests twice
        control.handleKeypress({keyCode:delKey});
        control.handleKeypress({keyCode:dKey});

        // now make sure nothing happens if the vertex is mid-drag
        control.dragControl.handlers.drag.dragging = true;
        control.handleKeypress({keyCode:delKey});

        //  clean up
        control.destroy();
        layer.destroy();
    }    
        

    function test_onUnSelect(t) {
        t.plan(6);
        var layer = new OpenLayers.Layer.Vector();
        var control = new OpenLayers.Control.ModifyFeature(layer);
        var fakeFeature = {'id':'myid'};
        control.vertices = 'a';
        control.virtualVertices = 'b';
        control.features = true;
        layer.events.on({"afterfeaturemodified": function(event) {
            t.eq(event.feature, fakeFeature, "afterfeaturemodified triggered");
        }});
        control.dragControl.deactivate = function() { t.ok(true, "Deactivate called on drag control"); }
        control.onModificationEnd = function (feature) { t.eq(feature.id, fakeFeature.id, "onModificationEnd got feature.") }
        layer.removeFeatures = function(verts) {
            t.ok(verts == 'a', "Normal verts removed correctly");
        }
        layer.destroyFeatures = function(verts) {
            t.ok(verts == 'b', "Virtual verts destroyed correctly");
        }
        control.unselectFeature({feature: fakeFeature});
        t.eq(control.feature, null, "feature is set to null");
        
        layer.destroyFeatures = function() {};        
        control.destroy();
        layer.destroy();
    }    

    function test_selectFeature(t) {
        t.plan(12);
        var map = new OpenLayers.Map('map');
        var layer = new OpenLayers.Layer.Vector("Vectors!", {isBaseLayer: true});
        map.addLayer(layer);
        map.setCenter(new OpenLayers.LonLat(0, 0));
        var control = new OpenLayers.Control.ModifyFeature(layer);
        control.vertices = [];
        control.virtualVertices = [];
        var callback = function(obj) {
            t.ok(obj.feature == fakeFeature, "beforefeaturemodified triggered");
        };
        layer.events.on({"beforefeaturemodified": callback});
        control.dragControl.activate = function() { t.ok(true, "drag Control activated"); }
        control.onModificationStart = function(feature)  { t.eq(feature.id, fakeFeature.id, "On Modification Start called with correct feature."); } 
        
        // Start of testing
        
        control.collectVertices = function() { t.fail("Collect vertices called when geom is a point"); }
        var fakeFeature = new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(0, 0));
        
        // Points don't call collectVertices
        control.selectFeature({feature: fakeFeature});
        
        control.collectVertices = function() { 
          t.ok(true, "collectVertices called"); 
          this.vertices = 'a';
          this.virtualVertices = 'd';
          layer.addFeatures(this.vertices);
          layer.addFeatures(this.virtualVertices);
        }
        
        layer.addFeatures = function(features) { 
            t.ok(features == 'a' || features == 'd', "features passed correctly"); 
        }
        
        fakeFeature.geometry = new OpenLayers.Geometry.Polygon([
            new OpenLayers.Geometry.LinearRing([
                new OpenLayers.Geometry.Point(0, 0),
                new OpenLayers.Geometry.Point(1, 1)
            ])
        ]);
        
        // OnSelect calls collectVertices and passes features to layer 
        control.selectFeature({feature: fakeFeature});
        
        control.vertices = ['a'];
        control.virtualVertices = ['b'];
        
        layer.addFeatures = function(features) {} 
        
        layer.removeFeatures = function(features) { 
            t.eq(features.length, 1, "Correct feature length passed in");
        }    

        // Features are removed whenever they exist
        control.selectFeature({feature: fakeFeature});
        
        control.destroy();

        // layer.destroy() will call removeFeatures with an empty array, make
        // removeFeatures reference an empty function to prevent the above
        // test to fail
        layer.removeFeatures = function(features) {};
        layer.destroy();
    }  

    function test_resetVertices(t) {
        t.plan(18);
        var layer = new OpenLayers.Layer.Vector();
        var control = new OpenLayers.Control.ModifyFeature(layer);
        var point = new OpenLayers.Geometry.Point(5,6);
        var point2 = new OpenLayers.Geometry.Point(7,8);
        var point3 = new OpenLayers.Geometry.Point(9,10);
        
        control.feature = new OpenLayers.Feature.Vector(point);
        control.resetVertices();
        t.eq(control.vertices.length, 0, "Correct vertices length");
        t.eq(control.virtualVertices.length, 0, "Correct virtual vertices length.");

        var multiPoint = new OpenLayers.Geometry.MultiPoint([point, point2]);
        control.feature = new OpenLayers.Feature.Vector(multiPoint);
        control.resetVertices();
        t.eq(control.vertices.length, 2, "Correct vertices length with multipoint");
        t.eq(control.virtualVertices.length, 0, "Correct virtual vertices length (multipoint).");

        var line = new OpenLayers.Geometry.LineString([point, point2]);
        control.feature = new OpenLayers.Feature.Vector(line);
        control.resetVertices();
        t.eq(control.vertices.length, 2, "Correct vertices length with line");
        t.eq(control.virtualVertices.length, 1, "Correct virtual vertices length (linestring).");
        
        var polygon = new OpenLayers.Geometry.Polygon([new OpenLayers.Geometry.LinearRing([point, point2, point3])]);
        control.feature = new OpenLayers.Feature.Vector(polygon);
        control.resetVertices();
        t.eq(control.vertices.length, 3, "Correct vertices length with polygon");
        t.eq(control.virtualVertices.length, 3, "Correct virtual vertices length (polygon).");

        control.mode = OpenLayers.Control.ModifyFeature.DRAG;
        control.resetVertices();
        t.ok(control.dragHandle != null, "Drag handle is set");
        t.eq(control.vertices.length, 0, "Correct vertices length with polygon (DRAG)");

        control.mode = OpenLayers.Control.ModifyFeature.ROTATE;
        control.resetVertices();
        t.ok(control.radiusHandle != null, "Radius handle is set");
        t.eq(control.vertices.length, 0, "Correct vertices length with polygon (ROTATE)");

        control.mode = OpenLayers.Control.ModifyFeature.RESIZE;
        control.resetVertices();
        t.ok(control.radiusHandle != null, "Radius handle is set");
        t.eq(control.vertices.length, 0, "Correct vertices length with polygon (RESIZE)");

        control.mode = OpenLayers.Control.ModifyFeature.RESHAPE | OpenLayers.Control.ModifyFeature.RESIZE;
        control.resetVertices();
        t.ok(control.radiusHandle != null, "Radius handle is set");
        t.eq(control.vertices.length, 3, "Correct vertices length with polygon (RESHAPE | RESIZE)");
        t.eq(control.virtualVertices.length, 3, "Correct virtual vertices length (RESHAPE | RESIZE)");
        
        control.dragControl.feature = new OpenLayers.Feature.Vector(polygon);
        control.dragControl.map = {};
        control.dragControl.map.div = {};
        control.dragControl.map.div.style = {};
        control.dragControl.map.div.cursor = "foo";
        control.dragControl.handlers.drag.deactivate = function() {
            this.active = false;
        }
        control.resetVertices();
        t.ok(!control.dragControl.handlers.drag.active, "resetVertices deactivates drag handler");
        control.dragControl.map = null;
        
        control.destroy();
        layer.destroy();
    }    
        
    function test_onDrag(t) {
        t.plan(1);
        t.ok(true, "onDrag not tested yet.");
    }
    
    function test_dragComplete(t) {
        t.plan(7);
        var layer = new OpenLayers.Layer.Vector();
        var control = new OpenLayers.Control.ModifyFeature(layer);
       
        var fakeFeature = {
         'geometry': { 'id':'myGeom'},
         'id': 'fakeFeature'
        };
        layer.addFeatures = function (verts) {
            t.ok(verts == 'virtual' || verts == 'normal', verts + " verts correct");
        }
        layer.removeFeatures = function (verts) {
            t.ok(verts == 'previous virtual' || verts == 'previous normal', verts + " verts correct");
        }
        layer.events.on({"featuremodified": function(event) {
            t.eq(event.feature, fakeFeature, "featuremodified triggered");
        }});
        control.onModification = function(feat) {
            t.eq(feat.id, fakeFeature.id, "onModification gets correct feat");
        }
        control.collectVertices = function() {
            t.ok(true, "collectVertices called");
            this.vertices = 'normal';
            this.virtualVertices = 'virtual';
            layer.addFeatures(this.vertices);
            layer.addFeatures(this.virtualVertices);
        }
        control.feature = fakeFeature;
        control.vertices = 'previous normal';
        control.virtualVertices = 'previous virtual';
        control.dragComplete();
        
        control.destroy();

        // layer.destroy() will call removeFeatures with an empty array, make
        // removeFeatures reference an empty function to prevent the above
        // test to fail
        layer.removeFeatures = function(verts) {};
        layer.destroy();
    }
    
    function test_deactivate(t) {
        t.plan(2);
        var map = new OpenLayers.Map("map");
        var layer = new OpenLayers.Layer.Vector();
        map.addLayer(layer);
        var control = new OpenLayers.Control.ModifyFeature(layer);
        map.addControl(control);
        
        control.selectControl.deactivate = function() {
            t.ok(true,
                 "control.deactivate calls deactivate on select control");
        }
        control.dragControl.deactivate = function() {
            t.ok(true,
                 "control.deactivate calls deactivate on drag control");
        }
        control.active = true;
        control.deactivate();
        
        map.destroy();
    }

    function test_onModificationStart(t) {
        t.plan(1);
        var map = new OpenLayers.Map("map");
        var layer = new OpenLayers.Layer.Vector();
        map.addLayer(layer);
        var control = new OpenLayers.Control.ModifyFeature(layer);
        map.addControl(control);
        control.activate();
        
        // make sure onModificationStart is called on feature selection
        var testFeature = new OpenLayers.Feature.Vector(
            new OpenLayers.Geometry.Point(Math.random(), Math.random())
        );
        control.onModificationStart = function(feature) {
            t.eq(feature.id, testFeature.id,
                 "onModificationStart called with the right feature");
        };
        control.selectFeature({feature: testFeature});
        
        map.destroy();
    }
    
    function test_onModification(t) {
        t.plan(3);
        var map = new OpenLayers.Map("map");
        var layer = new OpenLayers.Layer.Vector();
        map.addLayer(layer);
        var control = new OpenLayers.Control.ModifyFeature(layer);
        map.addControl(control);
        control.activate();
        
        // make sure onModification is called on drag complete
        var point = new OpenLayers.Feature.Vector(
            new OpenLayers.Geometry.Point(Math.random(), Math.random())
        );
        control.feature = point;
        control.onModification = function(feature) {
            t.eq(feature.id, point.id,
                "onModification called with the right feature on drag complete");
        };
        control.dragComplete();
        
        // make sure onModification is called on vertex deletion
        var poly = new OpenLayers.Feature.Vector(
            new OpenLayers.Geometry.Polygon()
        );
        var oldDraw = layer.drawFeature;
        layer.drawFeature = function() {
            return;
        };
        control.feature = poly;
        control.vertices = [point];
        layer.events.on({"featuremodified": function(event) {
            t.eq(event.feature.id, poly.id, "featuremodified triggered");
        }});
        control.onModification = function(feature) {
            t.eq(feature.id, poly.id,
                "onModification called with the right feature on vertex delete");
        };
        point.geometry.parent = poly.geometry;
        control.dragControl.feature = point;
        control.handleKeypress({keyCode:46});
        layer.drawFeature = oldDraw;
        
        map.destroy();
    }

    function test_onModificationEnd(t) {
        t.plan(2);
        var map = new OpenLayers.Map("map");
        var layer = new OpenLayers.Layer.Vector();
        map.addLayer(layer);
        var control = new OpenLayers.Control.ModifyFeature(layer);
        map.addControl(control);
        control.activate();
        
        // make sure onModificationEnd is called on unselect feature
        var testFeature = new OpenLayers.Feature.Vector(
            new OpenLayers.Geometry.Point(Math.random(), Math.random())
        );
        layer.events.on({"afterfeaturemodified": function(event) {
            t.eq(event.feature.id, testFeature.id, "afterfeaturemodified triggered");
        }});
        control.onModificationEnd = function(feature) {
            t.eq(feature.id, testFeature.id,
                 "onModificationEnd called with the right feature");
        };
        control.unselectFeature({feature: testFeature});
        
        map.destroy();
    }
    
    function test_events(t) {
        t.plan(2);
        var map = new OpenLayers.Map("map");
        var layer = new OpenLayers.Layer.Vector();
        map.addLayer(layer);
        var control = new OpenLayers.Control.ModifyFeature(layer);
        map.addControl(control);
        control.activate();
        
        // make sure onModificationStart is called on feature selection
        var testFeature = new OpenLayers.Feature.Vector(
            new OpenLayers.Geometry.Point(Math.random(), Math.random())
        );
        
        // test that beforefeatureselected is triggered
        function handle_beforefeatureselected(event) {
            t.ok(event.feature == testFeature, "beforefeatureselected called with the correct feature");
        }
        layer.events.on({
            "beforefeatureselected": handle_beforefeatureselected
        });
        layer.events.triggerEvent("beforefeatureselected", {
            feature: testFeature
        });
        layer.events.un({
            "beforefeatureselected": handle_beforefeatureselected
        });
        
        // test that beforefeatureselected is triggered
        function handle_featureselected(event) {
            t.ok(event.feature == testFeature, "featureselected called with the correct feature");
        }
        layer.events.on({
            "featureselected": handle_featureselected
        });
        layer.events.triggerEvent("featureselected", {
            feature: testFeature
        });
        layer.events.un({
            "featureselected": handle_featureselected
        });

        map.destroy();
    }



    </script>
</head>
<body>
    <div id="map" style="width: 400px; height: 250px;"/>
</body>
</html>