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/**
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* Created by (c) Sebastian Kaim, 2016
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*
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* This file is licensed under the MIT License.
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*/
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"use strict";
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(function ($) {
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// dot helper class
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var dot = function (_x, _y, _text, _color) {
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this.x = _x;
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this.y = _y;
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this.text = _text;
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this.color = _color;
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this.radius = 24; // hover event radius
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this.render = function (context) {
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context.beginPath();
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context.arc(this.x, this.y, 4, 0, Math.PI * 2, true);
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context.fillStyle = this.color;
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context.fill();
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};
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};
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// register the plugin
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$.fn.dotHover = function (dots, options) {
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// settings
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var settings = $.extend({
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// defaults
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// this should be a valid image url which will be used as background
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img: "karte.png",
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// whether to allow the user to place dots on click
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setmode: false,
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// a callback for when an event is created
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setcallback: function (dot) {},
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// default text for an unitialized dot
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defaulttext: "Example Text"
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}, options );
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// initialize dots
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settings.dots = [];
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$.each(dots, function (i, el) {
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settings.dots.push(new dot(el.x, el.y, el.text, el.color));
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});
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//
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// create tooltip canvas
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//
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var tooltip = $('<div/>')
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.appendTo('body')
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.addClass('hoverDotTooltip')
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.css({
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backgroundColor: 'rgba(0,0,0,.8)',
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border: '1px solid #fff',
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padding: '5px',
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position: 'absolute',
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padding: '5px',
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marginLeft: '-50px',
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color:'#fff'
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})
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.hide();
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var contexts = [];
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var showHideTooltip = function (show) {
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if(show)
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{
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tooltip.show();
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tooltip.get(0).style.marginLeft = ((-tooltip.width() / 2) + 3) + "px";
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}
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else
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{
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tooltip.hide();
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}
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};
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//
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// handle tooltip positioning on mouse move
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//
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var mouseMoveEvent = function(event, img, offsetX, offsetY) {
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var mouseX = parseInt(event.clientX - offsetX);
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var mouseY = parseInt(event.clientY - offsetY + $(window).scrollTop());
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var hit = false;
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for (var i = 0; i < settings.dots.length; i++) {
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var dot = settings.dots[i];
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var dx = mouseX - dot.x;
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var dy = mouseY - dot.y;
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if (dx * dx + dy * dy < dot.radius) {
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tooltip.get(0).style.top = ((dot.y - 40) + offsetY) + "px";
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tooltip.get(0).style.left = (dot.x + offsetX) + "px";
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tooltip.html(dot.text);
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hit = true;
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}
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}
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showHideTooltip(hit);
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};
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// re-renders all dots
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var render = function () {
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$.each(contexts, function (i, data) {
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$.each(settings.dots, function (j, dot) {
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dot.render(data.ctx);
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});
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});
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};
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//
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// places a new dot
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//
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var placedot = function (event, element) {
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var ndot = new dot(event.clientX - element.offsetLeft, event.clientY - element.offsetTop + $(window).scrollTop(), settings.defaulttext); // -7,-7 for cursor offset
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settings.dots.push(ndot);
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render();
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settings.setcallback(ndot);
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};
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//
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// removes a dot
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//
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this.removeDot = function(x, y)
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{
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settings.dots = settings.dots.filter(function(el, index) {
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return dot.x != x && dot.y != y;
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});
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};
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// init mouse move on each element
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this.each(function(i, el) {
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el.style= 'background: url(' + settings.img + ');' +
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'background-repeat: no-repeat; ' +
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'background-size: contain;' +
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'width: ' + settings.width + '; ';
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//'height: ' + settings.height + '; '
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contexts.push( { el: el, ctx: el.getContext('2d') });
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$(el).mousemove (function (event) {
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mouseMoveEvent(event, el, el.offsetLeft, el.offsetTop);
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});
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if(settings.setmode) $(el).click(function (e) {
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placedot(e, el);
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});
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});
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// render initial dots
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render();
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return this;
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};
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})(jQuery);
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falsovsky /
idlerpg-site-ng
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This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function.