/*global define, $, window, Modernizr, tmpl, RAMP, i18n */
/*jslint white: true */
/**
*
*
* @module Map
* @submodule Maptips
*/
/**
* Maptips class.
*
* The map tip module provides functions to create a small popup window as the mouse hovers over a feature on the map (point, polygon, line, etc.).
* NOTE: This module uses global config object. featureLayers->mapTipSettings
*
* ####Imports RAMP Modules:
* {{#crossLink "EventManager"}}{{/crossLink}}
* {{#crossLink "TmplHelper"}}{{/crossLink}}
*
* ####Uses RAMP Templates:
* {{#crossLink "templates/feature_hovertip_template.json"}}{{/crossLink}}
* {{#crossLink "templates/feature_anchortip_template.json"}}{{/crossLink}}
*
* @class Maptips
* @static
* @uses dojo/topic
* @uses templates/feature_hovertip_template.json
* @uses templates/feature_anchortip_template.json
*/
define([
/* Dojo */
'dojo/topic',
/* Ramp */
'ramp/eventManager', 'ramp/layerLoader',
/*tmplHelper */
'utils/tmplHelper',
/* json hover template file */
'dojo/text!./templates/feature_hovertip_template.json',
/* json archor template file*/
'dojo/text!./templates/feature_anchortip_template.json'
],
function (
/* Dojo */
topic,
/* Ramp */
EventManager, LayerLoader,
/*tmplHelper */
TmplHelper, hovertips_template, anchortips_template
) {
'use strict';
var hovertips_template_json = JSON.parse(TmplHelper.stringifyTemplate(hovertips_template)),
anchortips_template_json = JSON.parse(TmplHelper.stringifyTemplate(anchortips_template)),
maptipPrototype = {
node: null,
handle: null,
graphic: null
},
speed = 150,
tolerance = 0,
highTooltip = Object.create(maptipPrototype),
subPanelOffset;
/**
* Returns the position of the sub-panel relative to the leftmost edge of the screen.
*
* @method getSubPanelLeftOffset
* @private
* @return {Number} position of the sub-panel relative to the leftmost edge of the screen
*/
function getSubPanelLeftOffset() {
return $(window).width() - subPanelOffset;
}
/**
* Returns the position of the maptip relative to the leftmost edge of the screen.
*
* @method getToolTipOffset
* @private
* @return {Number} the position of the maptip relative to the leftmost edge of the screen
*/
function getToolTipOffset() {
var offset = 0;
if (highTooltip.handle !== null && highTooltip.node !== null) {
offset = parseInt(highTooltip.node.css('left'), 10) + highTooltip.node.width() / 2 - 20;
}
return offset;
}
/**
* Checks if the maptip is hidden by the sub-panel and publishes a center-at event to pan the map, moving maptip into view.
*
* @method checkMaptipPosition
* @private
* @param {jObject} target a node to which the tooltip will be attached
* @param {Object} graphic a graphic on the map
*/
function checkMaptipPosition(target, graphic) {
graphic = graphic || highTooltip.graphic || null;
target = target || highTooltip.handle || null;
if (target && graphic &&
target.offset().left > getSubPanelLeftOffset()) {
//console.log("offsets", target.offset().left, getSubPanelLeftOffset());
var point = graphic._extent.getCenter(),
width = RAMP.map.extent.xmax - RAMP.map.extent.xmin;
point.setX(point.x + width / 6);
topic.publish(EventManager.Map.CENTER_AT, {
point: point
});
topic.publish(EventManager.Maptips.EXTENT_CHANGE, {
scroll: false
});
} else {
topic.publish(EventManager.Maptips.EXTENT_CHANGE, {
scroll: true
});
}
}
/**
* Generates content for a maptip.
*
* @method getMaptipContent
* @private
* @param {Object} graphic map graphic the tip is describing
* @param {String} interactive indicates whether the maptip should have a close button
*/
function getMaptipContent(graphic, interactive) {
//the graphic might be in a highlight layer, if so we need the source layer id
var layerId = graphic.getLayer().sourceLayerId,
lData, fData;
if (!layerId) {
//graphic was not in a highlight layer
layerId = graphic.getLayer().id;
}
var layerConfig = LayerLoader.getLayerConfig(layerId),
templateKey = "",
datawrapper,
maptipContent;
tmpl.cache = {};
if (interactive === true) {
templateKey = layerConfig.templates.anchor;
tmpl.templates = anchortips_template_json;
} else {
templateKey = layerConfig.templates.hover;
tmpl.templates = hovertips_template_json;
}
//because of highlight layer tricks, don't use the standard GraphicExtension methods here to get the feature data
lData = RAMP.data[layerId];
if (lData) {
fData = lData.features[lData.index[graphic.attributes[lData.idField].toString()]];
datawrapper = TmplHelper.dataBuilder(fData, layerConfig);
maptipContent = tmpl(templateKey, datawrapper);
} else {
//feature data is still downloading
//TODO should this be it's own template?
maptipContent = '<div class="map-tip-content">' + i18n.t("maptips.attribsDownloading") + '</div>';
}
return maptipContent;
}
/**
* Creates a maptip on the map.
*
* @method showMapTip
* @private
* @param {jObject} target a node the user hovered over
* @param {Object} graphic the graphic belonging to the target
* @param {Boolean} interactive indicates whether the maptip should have a close button
*/
function showMapTip(target, graphic, interactive) {
var maptipContent = getMaptipContent(graphic, interactive);
if (maptipContent == null) {
return;
}
target.tooltipster({
offsetX: $(target)[0].getBBox().width / 2,
//content: $(maptipContent),
interactive: true,
arrow: true,
updateAnimation: Modernizr.csstransitions, // known bug in tooltipster when browsers not supporting CSS animation don't display tooltips at all
autoClose: interactive !== true,
onlyOne: true,
interactiveTolerance: tolerance,
speed: speed,
theme: (interactive === true) ? '.tooltipster-noir' : '.tooltipster-shadow'
});
//tooltipster fails to refresh content using the above settings object. a direct call to 'content' seems to fix the issue.
target.tooltipster('content', $(maptipContent));
if (!interactive) {
target
.tooltipster('offsetX', $(target)[0].getBBox().width / 2) // ?
.mouseover();
} else {
// add a close button
target
.tooltipster('show')
.tooltipster('content', $(maptipContent).append('<button class="button-none button-close"><span class="wb-invisible">Close</span></button>'));
// set a listener to that close button
$(target.tooltipster('elementTooltip'))
.find('.button-close')
.on('click', function () {
topic.publish(EventManager.GUI.SUBPANEL_CLOSE, { origin: 'all' });
});
// keep pointers to the tooltip parts
highTooltip.node = $(target.tooltipster('elementTooltip'));
highTooltip.handle = target.tooltipster();
highTooltip.graphic = graphic;
}
}
/**
* Initialize event listeners for the maptip events
*
* @method initListeners
* @private
*
*/
function initListeners() {
topic.subscribe(EventManager.Maptips.SHOW, function (event) {
//console.log(EventManager.Maptips.SHOW);
showMapTip($(event.target), event.graphic);
});
topic.subscribe(EventManager.Maptips.SHOW_INTERACTIVE, function (obj) {
//console.log(EventManager.Maptips.SHOW_INTERACTIVE);
checkMaptipPosition(obj.target, obj.graphic);
showMapTip(obj.target, obj.graphic, true);
});
topic.subscribe(EventManager.Maptips.REPOSITION_INTERACTIVE, function (obj) {
//console.log(EventManager.Maptips.REPOSITION_INTERACTIVE);
if (highTooltip.handle !== null && highTooltip.node !== null) {
var localOffset = obj.offset || 0;
highTooltip.handle
.tooltipster("offsetX", localOffset)
.tooltipster("reposition");
// check if the tooltip is "hidden" under the sub-panel; if so, hide it for real;
window.setTimeout(function () {
if (getToolTipOffset() > getSubPanelLeftOffset()) {
highTooltip.node.hide();
} else {
highTooltip.node.show();
}
}, speed + 10);
}
});
topic.subscribe(EventManager.GUI.SUBPANEL_CHANGE, function (obj) {
//console.log("subPanelChange", obj);
if (obj.isComplete) {
if (obj.visible) {
subPanelOffset = obj.offsetLeft;
checkMaptipPosition();
} else {
subPanelOffset = 0;
}
}
});
}
return {
/**
* Calls the event handling initialization function
* @method init
* @constructor
*
*/
init: function () {
initListeners();
}
};
});
undefined