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1 | /*jslint node: true */
/*jshint laxbreak: true */
"use strict" ;
var d3 = require("d3");
var _ = require("underscore");
var TooltipFactory = require("./TooltipFactory");
var FeatureFactory = require("./FeatureFactory");
var VariantFilterDialog = require("./VariantFilterDialog");
var ViewerHelper = function() {
var mousedownXY = {x: -1, y: -1}, mouseupXY = {x: -2, y: -2};
return {
createSVG: function(container, width, height, fv, clazz) {
var svg = container
.append('svg')
.attr('width', width)
.attr('height', height)
.on('mousedown', function() {
mousedownXY = {x: d3.event.pageX, y: d3.event.pageY};
mouseupXY = {x: -2, y: -2};
})
.on('mouseup', function() {
mouseupXY = {x: d3.event.pageX, y: d3.event.pageY};
if ((mousedownXY.x === mouseupXY.x) && (mousedownXY.y === mouseupXY.y)
&& !fv.overFeature && fv.selectedFeature ) {
ViewerHelper.selectFeature(fv.selectedFeature, fv.selectedFeatureElement, fv);
}
mousedownXY = {x: -1, y: -1};
})
.call(fv.zoom);
if (clazz) {
svg.attr('class', clazz);
}
svg.append('g').append('path')
.classed('up_pftv_shadow', true)
.attr('d', 'M-1,-1')
.attr('transform', 'translate(-1,-1)')
.attr('height', height);
return svg;
}
};
}();
ViewerHelper.shadowPath = function (feature, fv, height) {
var aaWidth = fv.xScale(2) - fv.xScale(1);
var gapRegion = aaWidth/2;
var width = aaWidth * (feature.end ? feature.end - feature.begin + 1 : 1);
var path;
if (!feature.type) {
path = 'M-1,-1';
} else if (FeatureFactory.isContinuous(feature.type.name)) {
path = 'M' + -(gapRegion) + ',0'
+ 'L' + (-gapRegion+width) + ',0'
+ 'L' + (-gapRegion+width) + ',' + height
+ 'L' + -(gapRegion) + ',' + height
+ 'Z';
} else {
path = 'M' + -(gapRegion) + ',0'
+ 'L' + (-gapRegion+width) + ',0'
+ 'L' + (-gapRegion+width) + ',' + height
+ 'L' + (-gapRegion+width-aaWidth) + ',' + height
+ 'L' + (-gapRegion+width-aaWidth) + ',0'
+ 'L' + (-gapRegion+aaWidth) + ',0'
+ 'L' + (-gapRegion+aaWidth) + ',' + height
+ 'L' + (-gapRegion) + ',' + height
+ 'Z';
}
return path;
};
ViewerHelper.updateShadow = function(feature, fv) {
var xTranslate = fv.xScale(feature.begin);
d3.selectAll('.up_pftv_shadow')
.attr('d', function() {
var height = d3.select(this).attr('height');
return ViewerHelper.shadowPath(feature, fv, height);
})
.attr('transform', 'translate(' + xTranslate + ',0)');
};
ViewerHelper.selectFeature = function(feature, elem, fv) {
var selectedElem = d3.select(elem);
var previousSelection = {feature: fv.selectedFeature, elem: fv.selectedFeatureElement};
if (feature === fv.selectedFeature) {
fv.selectedFeature = undefined;
fv.selectedFeatureElement = undefined;
d3.selectAll('.up_pftv_shadow')
.attr('d', 'M-1,-1')
.attr('transform', 'translate(-1,-1)');
} else {
fv.selectedFeature = feature;
fv.selectedFeatureElement = elem;
this.updateShadow(feature, fv);
}
var selectedPath = selectedElem.classed('up_pftv_activeFeature');
d3.selectAll('svg path.up_pftv_activeFeature').classed('up_pftv_activeFeature', false);
//it is not active anymore
selectedElem.classed('up_pftv_activeFeature', !selectedPath);
fv.updateFeatureSelector();
if (previousSelection.feature) {
fv.dispatcher.featureDeselected(
{feature: previousSelection.feature, color: d3.select(previousSelection.elem).style("fill")}
);
}
if (feature !== previousSelection.feature) {
if (previousSelection.elem) {
d3.select(previousSelection.elem).classed('up_pftv_activeFeature', false);
}
fv.dispatcher.featureSelected({feature: fv.selectedFeature, color: selectedElem.style("fill")});
}
};
ViewerHelper.addEventsClassAndTitle = function(catTitle, elements, fv, container) {
elements
.classed('up_pftv_activeFeature', function(d) {
return d === fv.selectedFeature;
})
.on('click', function(d){
var elem = d3.select(this);
if (!elem.classed('up_pftv_variant_hidden')) {
if (!elem.classed('up_pftv_activeFeature')) {
TooltipFactory.createTooltip(fv, catTitle, d, container);
} else {
var tooltipContainer = d3.selectAll('.up_pftv_tooltip-container')
.transition(20)
.style('opacity', 0)
.style('display', 'none');
tooltipContainer.remove();
}
ViewerHelper.selectFeature(d, this, fv);
}
})
.on('mouseover', function() {
fv.overFeature = true;
})
.on('mouseout', function() {
fv.overFeature = false;
});
};
module.exports = ViewerHelper; |