Adding jquery, flot and openlayers to be included with the GEM.v0.0.4

1 files changed, 321 insertions, 0 deletions

diff --git a/misc/openlayers/lib/OpenLayers/Events/featureclick.js b/misc/openlayers/lib/OpenLayers/Events/featureclick.js
new file mode 100644
index 0000000..9ae6ec5
--- /dev/null
+++ b/misc/openlayers/lib/OpenLayers/Events/featureclick.js
@@ -0,0 +1,321 @@
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Events.js
+ */
+
+/**
+ * Class: OpenLayers.Events.featureclick
+ *
+ * Extension event type for handling feature click events, including overlapping
+ * features. 
+ * 
+ * Event types provided by this extension:
+ * - featureclick 
+ */
+OpenLayers.Events.featureclick = OpenLayers.Class({
+    
+    /**
+     * Property: cache
+     * {Object} A cache of features under the mouse.
+     */
+    cache: null,
+    
+    /**
+     * Property: map
+     * {<OpenLayers.Map>} The map to register browser events on.
+     */
+    map: null,
+    
+    /**
+     * Property: provides
+     * {Array(String)} The event types provided by this extension.
+     */
+    provides: ["featureclick", "nofeatureclick", "featureover", "featureout"],
+    
+    /**
+     * Constructor: OpenLayers.Events.featureclick
+     * Create a new featureclick event type.
+     *
+     * Parameters:
+     * target - {<OpenLayers.Events>} The events instance to create the events
+     *     for.
+     */
+    initialize: function(target) {
+        this.target = target;
+        if (target.object instanceof OpenLayers.Map) {
+            this.setMap(target.object);
+        } else if (target.object instanceof OpenLayers.Layer.Vector) {
+            if (target.object.map) {
+                this.setMap(target.object.map);
+            } else {
+                target.object.events.register("added", this, function(evt) {
+                    this.setMap(target.object.map);
+                });
+            }
+        } else {
+            throw("Listeners for '" + this.provides.join("', '") +
+                "' events can only be registered for OpenLayers.Layer.Vector " + 
+                "or OpenLayers.Map instances");
+        }
+        for (var i=this.provides.length-1; i>=0; --i) {
+            target.extensions[this.provides[i]] = true;
+        }
+    },
+    
+    /**
+     * Method: setMap
+     *
+     * Parameters:
+     * map - {<OpenLayers.Map>} The map to register browser events on.
+     */
+    setMap: function(map) {
+        this.map = map;
+        this.cache = {};
+        map.events.register("mousedown", this, this.start, {extension: true});
+        map.events.register("mouseup", this, this.onClick, {extension: true});
+        map.events.register("touchstart", this, this.start, {extension: true});
+        map.events.register("touchmove", this, this.cancel, {extension: true});
+        map.events.register("touchend", this, this.onClick, {extension: true});
+        map.events.register("mousemove", this, this.onMousemove, {extension: true});
+    },
+    
+    /**
+     * Method: start
+     * Sets startEvt = evt.
+     *
+     * Parameters:
+     * evt - {<OpenLayers.Event>}
+     */
+    start: function(evt) {
+        this.startEvt = evt;
+    },
+    
+    /**
+     * Method: cancel
+     * Deletes the start event.
+     *
+     * Parameters:
+     * evt - {<OpenLayers.Event>}
+     */    
+    cancel: function(evt) {
+        delete this.startEvt;
+    },
+    
+    /**
+     * Method: onClick
+     * Listener for the click event.
+     *
+     * Parameters:
+     * evt - {<OpenLayers.Event>}
+     */
+    onClick: function(evt) {
+        if (!this.startEvt || evt.type !== "touchend" &&
+                !OpenLayers.Event.isLeftClick(evt)) {
+            return;
+        }
+        var features = this.getFeatures(this.startEvt);
+        delete this.startEvt;
+        // fire featureclick events
+        var feature, layer, more, clicked = {};
+        for (var i=0, len=features.length; i<len; ++i) {
+            feature = features[i];
+            layer = feature.layer;
+            clicked[layer.id] = true;
+            more = this.triggerEvent("featureclick", {feature: feature});
+            if (more === false) {
+                break;
+            }
+        }
+        // fire nofeatureclick events on all vector layers with no targets
+        for (i=0, len=this.map.layers.length; i<len; ++i) {
+            layer = this.map.layers[i];
+            if (layer instanceof OpenLayers.Layer.Vector && !clicked[layer.id]) {
+                this.triggerEvent("nofeatureclick", {layer: layer});
+            }
+        }
+    },
+    
+    /**
+     * Method: onMousemove
+     * Listener for the mousemove event.
+     *
+     * Parameters:
+     * evt - {<OpenLayers.Event>}
+     */
+    onMousemove: function(evt) {
+        delete this.startEvt;
+        var features = this.getFeatures(evt);
+        var over = {}, newly = [], feature;
+        for (var i=0, len=features.length; i<len; ++i) {
+            feature = features[i];
+            over[feature.id] = feature;
+            if (!this.cache[feature.id]) {
+                newly.push(feature);
+            }
+        }
+        // check if already over features
+        var out = [];
+        for (var id in this.cache) {
+            feature = this.cache[id];
+            if (feature.layer && feature.layer.map) {
+                if (!over[feature.id]) {
+                    out.push(feature);
+                }
+            } else {
+                // removed
+                delete this.cache[id];
+            }
+        }
+        // fire featureover events
+        var more;
+        for (i=0, len=newly.length; i<len; ++i) {
+            feature = newly[i];
+            this.cache[feature.id] = feature;
+            more = this.triggerEvent("featureover", {feature: feature});
+            if (more === false) {
+                break;
+            }
+        }
+        // fire featureout events
+        for (i=0, len=out.length; i<len; ++i) {
+            feature = out[i];
+            delete this.cache[feature.id];
+            more = this.triggerEvent("featureout", {feature: feature});
+            if (more === false) {
+                break;
+            }
+        }
+    },
+    
+    /**
+     * Method: triggerEvent
+     * Determines where to trigger the event and triggers it.
+     *
+     * Parameters:
+     * type - {String} The event type to trigger
+     * evt - {Object} The listener argument
+     *
+     * Returns:
+     * {Boolean} The last listener return.
+     */
+    triggerEvent: function(type, evt) {
+        var layer = evt.feature ? evt.feature.layer : evt.layer,
+            object = this.target.object;
+        if (object instanceof OpenLayers.Map || object === layer) {
+            return this.target.triggerEvent(type, evt);
+        }
+    },
+
+    /**
+     * Method: getFeatures
+     * Get all features at the given screen location.
+     *
+     * Parameters:
+     * evt - {Object} Event object.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Feature.Vector>)} List of features at the given point.
+     */
+    getFeatures: function(evt) {
+        var x = evt.clientX, y = evt.clientY,
+            features = [], targets = [], layers = [],
+            layer, target, feature, i, len;
+        // go through all layers looking for targets
+        for (i=this.map.layers.length-1; i>=0; --i) {
+            layer = this.map.layers[i];
+            if (layer.div.style.display !== "none") {
+                if (layer.renderer instanceof OpenLayers.Renderer.Elements) {
+                    if (layer instanceof OpenLayers.Layer.Vector) {
+                        target = document.elementFromPoint(x, y);
+                        while (target && target._featureId) {
+                            feature = layer.getFeatureById(target._featureId);
+                            if (feature) {
+                                features.push(feature);
+                                target.style.display = "none";
+                                targets.push(target);
+                                target = document.elementFromPoint(x, y);
+                            } else {
+                                // sketch, all bets off
+                                target = false;
+                            }
+                        }
+                    }
+                    layers.push(layer);
+                    layer.div.style.display = "none";
+                } else if (layer.renderer instanceof OpenLayers.Renderer.Canvas) {
+                    feature = layer.renderer.getFeatureIdFromEvent(evt);
+                    if (feature) {
+                        features.push(feature);
+                        layers.push(layer);
+                    }
+                }
+            }
+        }
+        // restore feature visibility
+        for (i=0, len=targets.length; i<len; ++i) {
+            targets[i].style.display = "";
+        }
+        // restore layer visibility
+        for (i=layers.length-1; i>=0; --i) {
+            layers[i].div.style.display = "block";
+        }
+        return features;
+    },
+    
+    /**
+     * APIMethod: destroy
+     * Clean up.
+     */
+    destroy: function() {
+        for (var i=this.provides.length-1; i>=0; --i) {
+            delete this.target.extensions[this.provides[i]];
+        }        
+        this.map.events.un({
+            mousemove: this.onMousemove,
+            mousedown: this.start,
+            mouseup: this.onClick,
+            touchstart: this.start,
+            touchmove: this.cancel,
+            touchend: this.onClick,
+            scope: this
+        });
+        delete this.cache;
+        delete this.map;
+        delete this.target;
+    }
+    
+});
+ 
+/**
+ * Class: OpenLayers.Events.nofeatureclick
+ *
+ * Extension event type for handling click events that do not hit a feature. 
+ * 
+ * Event types provided by this extension:
+ * - nofeatureclick 
+ */
+OpenLayers.Events.nofeatureclick = OpenLayers.Events.featureclick;
+
+/**
+ * Class: OpenLayers.Events.featureover
+ *
+ * Extension event type for handling hovering over a feature. 
+ * 
+ * Event types provided by this extension:
+ * - featureover 
+ */
+OpenLayers.Events.featureover = OpenLayers.Events.featureclick;
+
+/**
+ * Class: OpenLayers.Events.featureout
+ *
+ * Extension event type for handling leaving a feature. 
+ * 
+ * Event types provided by this extension:
+ * - featureout 
+ */
+OpenLayers.Events.featureout = OpenLayers.Events.featureclick;