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<html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <script src="lib/simpleRequire.js"></script>
        <script src="lib/config.js"></script>
        <script src="lib/jquery.min.js"></script>
        <script src="lib/facePrint.js"></script>
        <script src="lib/testHelper.js"></script>
        <!-- <script src="ut/lib/canteen.js"></script> -->
        <link rel="stylesheet" href="lib/reset.css" />
    </head>
    <body>
        <div id="main0"></div>
        <div id="main1"></div>
        <div id="main2"></div>
        <div id="main3"></div>
        <div id="main4"></div>
        <script>
            require(['echarts'/*, 'map/js/china' */], function (echarts) {
                var option;
                var tooltipContent;

                option = {
                    xAxis: {},
                    yAxis: {},
                    series: {
                        type: 'line',
                        data: [[11, 22], [33, 44]]
                    },
                    tooltip: {
                        formatter: () => {
                            if (!tooltipContent) {
                                tooltipContent = document.createElement('span');
                                document.body.appendChild(tooltipContent);
                                var setDate = () => tooltipContent.innerHTML = new Date();
                                setDate();
                                setInterval(setDate , 1000);
                            };
                            return [tooltipContent];
                        }
                    }
                };

                var chart = testHelper.create(echarts, 'main0', {
                    title: [
                        'Tooltip formatter returns DOM node',
                        '(Tooltip show current time)'
                    ],
                    option: option
                });
            });
        </script>

        <script>
            require(['echarts'], function (echarts) {
                var option;
                var tooltipContent = document.createElement('span');
                tooltipContent.innerText = 'Tooltip formatter is a DOM node (not function callback)';

                option = {
                    xAxis: {},
                    yAxis: {},
                    series: {
                        type: 'line',
                        data: [[11, 22], [33, 44], [55, 66]]
                    },
                    tooltip: {
                        formatter: tooltipContent
                    }
                };

                var chart = testHelper.create(echarts, 'main1', {
                    title: [
                        'Tooltip formatter is DOM node (not function callback)'
                    ],
                    option: option
                });
            });
        </script>

        <script>
            require(['echarts'], function (echarts) {
                var option;
                var tooltipContent = document.createElement('a');
                tooltipContent.href = 'javascript:void(0);';
                tooltipContent.onclick = () => console.log('test');
                tooltipContent.textContent = 'Olala';

                option = {
                    xAxis: {},
                    yAxis: {},
                    series: {
                        type: 'line',
                        data: [[11, 22], [33, 44], [55, 66]]
                    },
                    tooltip: {
                        position: 'top',
                        enterable: true,
                        formatter: [tooltipContent]
                    }
                };

                var chart = testHelper.create(echarts, 'main2', {
                    title: [
                        'Tooltip should show DOM content instead of the string **[object HTMLSpanElement]**',
                        'https://github.com/apache/echarts/issues/15307'
                    ],
                    option: option
                });
            });
        </script>

        <script>
            require(['echarts'], function (echarts) {
                var option;

                option = {
                    xAxis: {},
                    yAxis: {},
                    series: {
                        type: 'line',
                        data: [[11, 22], [33, 44], [55, 66]]
                    },
                    tooltip: {
                        position: 'top',
                        enterable: true,
                        formatter: []
                    }
                };

                var chart = testHelper.create(echarts, 'main3', {
                    title: [
                        'Tooltip should show nothing',
                    ],
                    option: option
                });
            });
        </script>

        <script>
            require(['echarts'], function (echarts) {
                var option;

                option = {
                    xAxis: {},
                    yAxis: {},
                    series: {
                        type: 'line',
                        data: [[11, 22], [33, 44], [55, 66]]
                    },
                    tooltip: {
                        position: 'top',
                        borderWidth: 40,
                        formatter: '{a}<br>Data is {c}'
                    }
                };

                var chart = testHelper.create(echarts, 'main4', {
                    title: [
                        'Tooltip arrow shouldn\'t cover the content',
                    ],
                    option: option
                });
            });
        </script>

    </body>
</html>