Software: Apache. PHP/5.5.15 uname -a: Windows NT SVR-DMZ 6.1 build 7600 (Windows Server 2008 R2 Enterprise Edition) i586 SYSTEM Safe-mode: OFF (not secure) E:\nuevo\phpMyAdmin\js\openlayers\src\openlayers\lib\OpenLayers\Control\ drwxrwxrwx | |
| Viewing file: Select action/file-type: /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for
* full list of contributors). Published under the Clear BSD license.
* See http://svn.openlayers.org/trunk/openlayers/license.txt for the
* full text of the license. */
/**
* @requires OpenLayers/Control.js
* @requires OpenLayers/Handler/Click.js
* @requires OpenLayers/Handler/Hover.js
* @requires OpenLayers/Request.js
* @requires OpenLayers/Format/WMSGetFeatureInfo.js
*/
/**
* Class: OpenLayers.Control.WMTSGetFeatureInfo
* The WMTSGetFeatureInfo control uses a WMTS query to get information about a
* point on the map. The information may be in a display-friendly format
* such as HTML, or a machine-friendly format such as GML, depending on the
* server's capabilities and the client's configuration. This control
* handles click or hover events, attempts to parse the results using an
* OpenLayers.Format, and fires a 'getfeatureinfo' event for each layer
* queried.
*
* Inherits from:
* - <OpenLayers.Control>
*/
OpenLayers.Control.WMTSGetFeatureInfo = OpenLayers.Class(OpenLayers.Control, {
/**
* APIProperty: hover
* {Boolean} Send GetFeatureInfo requests when mouse stops moving.
* Default is false.
*/
hover: false,
/**
* Property: requestEncoding
* {String} One of "KVP" or "REST". Only KVP encoding is supported at this
* time.
*/
requestEncoding: "KVP",
/**
* APIProperty: drillDown
* {Boolean} Drill down over all WMTS layers in the map. When
* using drillDown mode, hover is not possible. A getfeatureinfo event
* will be fired for each layer queried.
*/
drillDown: false,
/**
* APIProperty: maxFeatures
* {Integer} Maximum number of features to return from a WMTS query. This
* sets the feature_count parameter on WMTS GetFeatureInfo
* requests.
*/
maxFeatures: 10,
/** APIProperty: clickCallback
* {String} The click callback to register in the
* {<OpenLayers.Handler.Click>} object created when the hover
* option is set to false. Default is "click".
*/
clickCallback: "click",
/**
* Property: layers
* {Array(<OpenLayers.Layer.WMTS>)} The layers to query for feature info.
* If omitted, all map WMTS layers will be considered.
*/
layers: null,
/**
* APIProperty: queryVisible
* {Boolean} Filter out hidden layers when searching the map for layers to
* query. Default is true.
*/
queryVisible: true,
/**
* Property: infoFormat
* {String} The mimetype to request from the server
*/
infoFormat: 'text/html',
/**
* Property: vendorParams
* {Object} Additional parameters that will be added to the request, for
* WMTS implementations that support them. This could e.g. look like
* (start code)
* {
* radius: 5
* }
* (end)
*/
vendorParams: {},
/**
* Property: format
* {<OpenLayers.Format>} A format for parsing GetFeatureInfo responses.
* Default is <OpenLayers.Format.WMSGetFeatureInfo>.
*/
format: null,
/**
* Property: formatOptions
* {Object} Optional properties to set on the format (if one is not provided
* in the <format> property.
*/
formatOptions: null,
/**
* APIProperty: handlerOptions
* {Object} Additional options for the handlers used by this control, e.g.
* (start code)
* {
* "click": {delay: 100},
* "hover": {delay: 300}
* }
* (end)
*/
handlerOptions: null,
/**
* Property: handler
* {Object} Reference to the <OpenLayers.Handler> for this control
*/
handler: null,
/**
* Property: hoverRequest
* {<OpenLayers.Request>} contains the currently running hover request
* (if any).
*/
hoverRequest: null,
/**
* Constant: EVENT_TYPES
*
* Supported event types (in addition to those from <OpenLayers.Control>):
* beforegetfeatureinfo - Triggered before each request is sent.
* The event object has an *xy* property with the position of the
* mouse click or hover event that triggers the request and a *layer*
* property referencing the layer about to be queried. If a listener
* returns false, the request will not be issued.
* getfeatureinfo - Triggered when a GetFeatureInfo response is received.
* The event object has a *text* property with the body of the
* response (String), a *features* property with an array of the
* parsed features, an *xy* property with the position of the mouse
* click or hover event that triggered the request, a *layer* property
* referencing the layer queried and a *request* property with the
* request itself. If drillDown is set to true, one event will be fired
* for each layer queried.
* exception - Triggered when a GetFeatureInfo request fails (with a
* status other than 200) or whenparsing fails. Listeners will receive
* an event with *request*, *xy*, and *layer* properties. In the case
* of a parsing error, the event will also contain an *error* property.
*/
EVENT_TYPES: ["beforegetfeatureinfo", "getfeatureinfo", "exception"],
/**
* Property: pending
* {Number} The number of pending requests.
*/
pending: 0,
/**
* Constructor: <OpenLayers.Control.WMTSGetFeatureInfo>
*
* Parameters:
* options - {Object}
*/
initialize: function(options) {
// concatenate events specific to vector with those from the base
this.EVENT_TYPES =
OpenLayers.Control.WMTSGetFeatureInfo.prototype.EVENT_TYPES.concat(
OpenLayers.Control.prototype.EVENT_TYPES
);
options = options || {};
options.handlerOptions = options.handlerOptions || {};
OpenLayers.Control.prototype.initialize.apply(this, [options]);
if (!this.format) {
this.format = new OpenLayers.Format.WMSGetFeatureInfo(
options.formatOptions
);
}
if (this.drillDown === true) {
this.hover = false;
}
if (this.hover) {
this.handler = new OpenLayers.Handler.Hover(
this, {
move: this.cancelHover,
pause: this.getInfoForHover
},
OpenLayers.Util.extend(
this.handlerOptions.hover || {}, {delay: 250}
)
);
} else {
var callbacks = {};
callbacks[this.clickCallback] = this.getInfoForClick;
this.handler = new OpenLayers.Handler.Click(
this, callbacks, this.handlerOptions.click || {}
);
}
},
/**
* Method: activate
* Activates the control.
*
* Returns:
* {Boolean} The control was effectively activated.
*/
activate: function () {
if (!this.active) {
this.handler.activate();
}
return OpenLayers.Control.prototype.activate.apply(
this, arguments
);
},
/**
* Method: deactivate
* Deactivates the control.
*
* Returns:
* {Boolean} The control was effectively deactivated.
*/
deactivate: function () {
return OpenLayers.Control.prototype.deactivate.apply(
this, arguments
);
},
/**
* Method: getInfoForClick
* Called on click
*
* Parameters:
* evt - {<OpenLayers.Event>}
*/
getInfoForClick: function(evt) {
this.request(evt.xy, {});
},
/**
* Method: getInfoForHover
* Pause callback for the hover handler
*
* Parameters:
* evt - {Object}
*/
getInfoForHover: function(evt) {
this.request(evt.xy, {hover: true});
},
/**
* Method: cancelHover
* Cancel callback for the hover handler
*/
cancelHover: function() {
if (this.hoverRequest) {
--this.pending;
if (this.pending <= 0) {
OpenLayers.Element.removeClass(this.map.viewPortDiv, "olCursorWait");
this.pending = 0;
}
this.hoverRequest.abort();
this.hoverRequest = null;
}
},
/**
* Method: findLayers
* Internal method to get the layers, independent of whether we are
* inspecting the map or using a client-provided array
*/
findLayers: function() {
var candidates = this.layers || this.map.layers;
var layers = [];
var layer;
for (var i=candidates.length-1; i>=0; --i) {
layer = candidates[i];
if (layer instanceof OpenLayers.Layer.WMTS &&
layer.requestEncoding === this.requestEncoding &&
(!this.queryVisible || layer.getVisibility())) {
layers.push(layer);
if (!this.drillDown || this.hover) {
break;
}
}
}
return layers;
},
/**
* Method: buildRequestOptions
* Build an object with the relevant options for the GetFeatureInfo request.
*
* Parameters:
* layer - {<OpenLayers.Layer.WMTS>} A WMTS layer.
* xy - {<OpenLayers.Pixel>} The position on the map where the
* mouse event occurred.
*/
buildRequestOptions: function(layer, xy) {
var loc = this.map.getLonLatFromPixel(xy);
var getTileUrl = layer.getURL(
new OpenLayers.Bounds(loc.lon, loc.lat, loc.lon, loc.lat)
);
var params = OpenLayers.Util.getParameters(getTileUrl);
var tileInfo = layer.getTileInfo(loc);
OpenLayers.Util.extend(params, {
service: "WMTS",
version: layer.version,
request: "GetFeatureInfo",
infoFormat: this.infoFormat,
i: tileInfo.i,
j: tileInfo.j
});
OpenLayers.Util.applyDefaults(params, this.vendorParams);
return {
url: layer.url instanceof Array ? layer.url[0] : layer.url,
params: OpenLayers.Util.upperCaseObject(params),
callback: function(request) {
this.handleResponse(xy, request, layer);
},
scope: this
};
},
/**
* Method: request
* Sends a GetFeatureInfo request to the WMTS
*
* Parameters:
* xy - {<OpenLayers.Pixel>} The position on the map where the mouse event
* occurred.
* options - {Object} additional options for this method.
*
* Valid options:
* - *hover* {Boolean} true if we do the request for the hover handler
*/
request: function(xy, options) {
options = options || {};
var layers = this.findLayers();
if (layers.length > 0) {
var issue, layer;
for (var i=0, len=layers.length; i<len; i++) {
layer = layers[i];
issue = this.events.triggerEvent("beforegetfeatureinfo", {
xy: xy,
layer: layer
});
if (issue !== false) {
++this.pending;
var requestOptions = this.buildRequestOptions(layer, xy);
var request = OpenLayers.Request.GET(requestOptions);
if (options.hover === true) {
this.hoverRequest = request;
}
}
}
if (this.pending > 0) {
OpenLayers.Element.addClass(this.map.viewPortDiv, "olCursorWait");
}
}
},
/**
* Method: handleResponse
* Handler for the GetFeatureInfo response.
*
* Parameters:
* xy - {<OpenLayers.Pixel>} The position on the map where the mouse event
* occurred.
* request - {XMLHttpRequest} The request object.
* layer - {<OpenLayers.Layer.WMTS>} The queried layer.
*/
handleResponse: function(xy, request, layer) {
--this.pending;
if (this.pending <= 0) {
OpenLayers.Element.removeClass(this.map.viewPortDiv, "olCursorWait");
this.pending = 0;
}
if (request.status && (request.status < 200 || request.status >= 300)) {
this.events.triggerEvent("exception", {
xy: xy,
request: request,
layer: layer
});
} else {
var doc = request.responseXML;
if (!doc || !doc.documentElement) {
doc = request.responseText;
}
var features, except;
try {
features = this.format.read(doc);
} catch (error) {
except = true;
this.events.triggerEvent("exception", {
xy: xy,
request: request,
error: error,
layer: layer
});
}
if (!except) {
this.events.triggerEvent("getfeatureinfo", {
text: request.responseText,
features: features,
request: request,
xy: xy,
layer: layer
});
}
}
},
/**
* Method: setMap
* Set the map property for the control.
*
* Parameters:
* map - {<OpenLayers.Map>}
*/
setMap: function(map) {
this.handler.setMap(map);
OpenLayers.Control.prototype.setMap.apply(this, arguments);
},
CLASS_NAME: "OpenLayers.Control.WMTSGetFeatureInfo"
});
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