function render()

in modules/ui/entity_issues.js [60:265]

• 161 lines of code
• 15 McCabe index (conditional complexity)

    function render(selection) {
        var issues = getIssues();
        _activeIssueID = issues.length > 0 ? issues[0].id : null;


        var containers = selection.selectAll('.issue-container')
            .data(issues, function(d) { return d.id; });

        // Exit
        containers.exit()
            .remove();

        // Enter
        var containersEnter = containers.enter()
            .append('div')
            .attr('class', 'issue-container');


        var itemsEnter = containersEnter
            .append('div')
            .attr('class', function(d) { return 'issue severity-' + d.severity; })
            .on('mouseover.highlight', function(d) {
                // don't hover-highlight the selected entity
                var ids = d.entityIds
                    .filter(function(e) { return e !== _entityID; });

                utilHighlightEntities(ids, true, context);
            })
            .on('mouseout.highlight', function(d) {
                var ids = d.entityIds
                    .filter(function(e) { return e !== _entityID; });

                utilHighlightEntities(ids, false, context);
            });

        var labelsEnter = itemsEnter
            .append('div')
            .attr('class', 'issue-label')
            .on('click', function(d) {

                makeActiveIssue(d.id); // expand only the clicked item

                var extent = d.extent(context.graph());
                if (extent) {
                    var setZoom = Math.max(context.map().zoom(), 19);
                    context.map().unobscuredCenterZoomEase(extent.center(), setZoom);
                }
            });

        var textEnter = labelsEnter
            .append('span')
            .attr('class', 'issue-text');

        textEnter
            .append('span')
            .attr('class', 'issue-icon')
            .each(function(d) {
                var iconName = '#iD-icon-' + (d.severity === 'warning' ? 'alert' : 'error');
                d3_select(this)
                    .call(svgIcon(iconName));
            });

        textEnter
            .append('span')
            .attr('class', 'issue-message');


        var infoButton = labelsEnter
            .append('button')
            .attr('class', 'issue-info-button')
            .attr('title', t('icons.information'))
            .attr('tabindex', -1)
            .call(svgIcon('#iD-icon-inspect'));

        infoButton
            .on('click', function () {
                d3_event.stopPropagation();
                d3_event.preventDefault();
                this.blur();    // avoid keeping focus on the button - #4641

                var container = d3_select(this.parentNode.parentNode.parentNode);
                var info = container.selectAll('.issue-info');
                var isExpanded = info.classed('expanded');

                if (isExpanded) {
                    info
                        .transition()
                        .duration(200)
                        .style('max-height', '0px')
                        .style('opacity', '0')
                        .on('end', function () {
                            info.classed('expanded', false);
                        });
                } else {
                    info
                        .classed('expanded', true)
                        .transition()
                        .duration(200)
                        .style('max-height', '200px')
                        .style('opacity', '1')
                        .on('end', function () {
                            info.style('max-height', null);
                        });
                }
            });

        itemsEnter
            .append('ul')
            .attr('class', 'issue-fix-list');

        containersEnter
            .append('div')
            .attr('class', 'issue-info')
            .style('max-height', '0')
            .style('opacity', '0')
            .each(function(d) {
                if (typeof d.reference === 'function') {
                    d3_select(this)
                        .call(d.reference);
                } else {
                    d3_select(this)
                        .text(t('inspector.no_documentation_key'));
                }
            });


        // Update
        containers = containers
            .merge(containersEnter)
            .classed('active', function(d) { return d.id === _activeIssueID; });

        containers.selectAll('.issue-message')
            .text(function(d) {
                return d.message(context);
            });

        // fixes
        var fixLists = containers.selectAll('.issue-fix-list');

        var fixes = fixLists.selectAll('.issue-fix-item')
            .data(function(d) { return d.fixes ? d.fixes(context) : []; }, function(fix) { return fix.id; });

        fixes.exit()
            .remove();

        var fixesEnter = fixes.enter()
            .append('li')
            .attr('class', 'issue-fix-item')
            .on('click', function(d) {
                // not all fixes are actionable
                if (!d3_select(this).classed('actionable') || !d.onClick) return;

                // Don't run another fix for this issue within a second of running one
                // (Necessary for "Select a feature type" fix. Most fixes should only ever run once)
                if (d.issue.dateLastRanFix && new Date() - d.issue.dateLastRanFix < 1000) return;
                d.issue.dateLastRanFix = new Date();

                // remove hover-highlighting
                utilHighlightEntities(d.issue.entityIds.concat(d.entityIds), false, context);

                new Promise(function(resolve, reject) {
                    d.onClick(context, resolve, reject);
                    if (d.onClick.length <= 1) {
                        // if the fix doesn't take any completion parameters then consider it resolved
                        resolve();
                    }
                })
                .then(function() {
                    // revalidate whenever the fix has finished running successfully
                    context.validator().validate();
                });
            })
            .on('mouseover.highlight', function(d) {
                utilHighlightEntities(d.entityIds, true, context);
            })
            .on('mouseout.highlight', function(d) {
                utilHighlightEntities(d.entityIds, false, context);
            });

        fixesEnter
            .append('span')
            .attr('class', 'fix-icon')
            .each(function(d) {
                var iconName = d.icon || 'iD-icon-wrench';
                if (iconName.startsWith('maki')) {
                    iconName += '-15';
                }
                d3_select(this).call(svgIcon('#' + iconName));
            });

        fixesEnter
            .append('span')
            .attr('class', 'fix-message')
            .text(function(d) { return d.title; });

        fixesEnter.merge(fixes)
            .classed('actionable', function(d) {
                return d.onClick;
            })
            .attr('title', function(d) {
                if (d.disabledReason) {
                    return d.disabledReason;
                }
                return null;
            });
    }