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svg_map_helper.js
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svg_map_helper.js
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/*
* Copyright 2018 Nafundi
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* JavaScript class which contains methods used for managing svg maps
*/
var selectedAreas = new Set();
var originalColors = new Map();
var lastSelectedAreaId;
var isSingleSelect;
function selectArea(areaId) {
imageMapInterface.selectArea(areaId);
}
function unselectArea(areaId) {
imageMapInterface.unselectArea(areaId);
}
function notifyChanges() {
imageMapInterface.notifyChanges();
}
function addSelectedArea(selectedAreaId) {
selectedAreas.add(selectedAreaId);
document.getElementById(selectedAreaId).setAttribute('style', 'fill: #E65100');
if (Boolean(isSingleSelect)) {
lastSelectedAreaId = selectedAreaId;
}
}
function addArea(areaId) {
originalColors.set(areaId, document.getElementById(areaId).style.color);
}
function setSelectMode(isSingleSelect) {
this.isSingleSelect = isSingleSelect;
}
function clickOnArea(areaId) {
if (selectedAreas.has(areaId)) {
document.getElementById(areaId).setAttribute('style', 'fill: ' + originalColors.get(areaId));
selectedAreas.delete(areaId);
unselectArea(areaId);
} else {
if (Boolean(isSingleSelect) && !!lastSelectedAreaId) {
document.getElementById(lastSelectedAreaId).setAttribute('style', 'fill: ' + originalColors.get(lastSelectedAreaId));
selectedAreas.delete(lastSelectedAreaId);
unselectArea(lastSelectedAreaId);
}
document.getElementById(areaId).setAttribute('style', 'fill: #E65100');
selectedAreas.add(areaId);
selectArea(areaId);
lastSelectedAreaId = areaId;
}
notifyChanges();
}