javascript-将超链接添加到Google图表中的自定义工具提示
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内容图文
使用这个workaround,我可以模仿选择Google时间线图时显示的工具提示.这个问题是我计划在工具提示中链接一个邮件,以供用户单击.但是,在我的函数creatToolTip()中,创建了工具提示,但是我无法单击联系人链接.正确的方法是什么？
编辑：我也尝试了Google’s tooltip actions,但时间轴图表中不支持它.
google.setOnLoadCallback(drawVisualization);
function drawVisualization() {
var container = document.getElementById('timeline');
var chart = new google.visualization.Timeline(container);
var dataTable = new google.visualization.DataTable();
dataTable.addColumn({
type: 'string',
id: 'President'
});
dataTable.addColumn({ type: 'string', id: 'Name' });
dataTable.addColumn({ type: 'string', role: 'tooltip', 'p': {'html': true}});
dataTable.addColumn({
type: 'date',
id: 'Start'
});
dataTable.addColumn({
type: 'date',
id: 'End'
});
dataTable.addRows([
['Washington', 'test', createToolTip(), new Date(1789, 3, 30), new Date(1797, 2, 4)],
['Adams', 'test', createToolTip(), new Date(1797, 2, 4), new Date(1801, 2, 4)],
['Jefferson', 'test', createToolTip(), new Date(1801, 2, 4), new Date(1809, 2, 4)]
]);
//select-handler
google.visualization.events.addListener(chart, 'select', function(e) {
//the built-in tooltip
var tooltip = document.querySelector('.google-visualization-tooltip:not([clone])');
//remove previous clone when there is any
if (chart.ttclone) {
chart.ttclone.parentNode.removeChild(chart.ttclone)
}
//create a clone of the built-in tooltip
chart.ttclone = tooltip.cloneNode(true);
//create a custom attribute to be able to distinguish
//built-in tooltip and clone
chart.ttclone.setAttribute('clone', true);
//inject clone into document
tooltip.parentNode.insertBefore(chart.ttclone, chart.tooltip);
});
chart.draw(dataTable, {tooltip: {isHtml: true }});
}
function createToolTip() {
var mainDiv = '<div >';
var list =
'<ul class="google-visualization-tooltip-action-list">' +
'<li class="google-visualization-tooltip-action">' +
'<span style="font-family: Arial; font-size: 12px; color: rgb(0, 0, 0); margin: 0px; text-decoration: none; font-weight: bold;">' +
'<a href="mailto:test@test.com?Subject=test">Contact</a>' +
'</span>' +
'</li>' +
'</ul>';
var endMainDiv = '</div>';
var tooltip = mainDiv + list + endMainDiv;
return tooltip;
}.google-visualization-tooltip {
opacity: 0 !important;
max-width: 200px !important;
}
.google-visualization-tooltip[clone] {
opacity: 1 !important;
}
html,
body,
timeline {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript" src="https://www.google.com/jsapi?autoload={'modules':[{'name':'visualization','version':'1.1','packages':['timeline']}]}"></script>
<div id='timeline' style="height:90%"></div>解决方法:
看起来默认情况下pointer-events设置为“无”
在将克隆重新注入dom之前更改为“自动”
//inject clone into document
chart.ttclone.style.pointerEvents = 'auto';
tooltip.parentNode.insertBefore(chart.ttclone, chart.tooltip);
请参阅以下工作片段…
google.charts.load('current', {
callback: function () {
var container = document.getElementById('timeline');
var chart = new google.visualization.Timeline(container);
var dataTable = new google.visualization.DataTable();
dataTable.addColumn({
type: 'string',
id: 'President'
});
dataTable.addColumn({ type: 'string', id: 'Name' });
dataTable.addColumn({ type: 'string', role: 'tooltip', 'p': {'html': true}});
dataTable.addColumn({
type: 'date',
id: 'Start'
});
dataTable.addColumn({
type: 'date',
id: 'End'
});
dataTable.addRows([
['Washington', 'test', createToolTip(), new Date(1789, 3, 30), new Date(1797, 2, 4)],
['Adams', 'test', createToolTip(), new Date(1797, 2, 4), new Date(1801, 2, 4)],
['Jefferson', 'test', createToolTip(), new Date(1801, 2, 4), new Date(1809, 2, 4)]
]);
//select-handler
google.visualization.events.addListener(chart, 'select', function(e) {
//the built-in tooltip
var tooltip = document.querySelector('.google-visualization-tooltip:not([clone])');
//remove previous clone when there is any
if (chart.ttclone) {
chart.ttclone.parentNode.removeChild(chart.ttclone)
}
//create a clone of the built-in tooltip
chart.ttclone = tooltip.cloneNode(true);
//create a custom attribute to be able to distinguish
//built-in tooltip and clone
chart.ttclone.setAttribute('clone', true);
//inject clone into document
chart.ttclone.style.pointerEvents = 'auto';
tooltip.parentNode.insertBefore(chart.ttclone, chart.tooltip);
});
function createToolTip() {
var mainDiv = '<div style="z-index: 1000;">';
var list =
'<ul class="google-visualization-tooltip-action-list">' +
'<li class="google-visualization-tooltip-action">' +
'<span style="font-family: Arial; font-size: 12px; color: rgb(0, 0, 0); margin: 0px; text-decoration: none; font-weight: bold;">' +
'<a href="mailto:test@test.com?Subject=test">Contact</a>' +
'</span>' +
'</li>' +
'</ul>';
var endMainDiv = '</div>';
var tooltip = mainDiv + list + endMainDiv;
return tooltip;
}
chart.draw(dataTable, {tooltip: {isHtml: true }});
},
packages: ['timeline']
});.google-visualization-tooltip {
opacity: 0 !important;
max-width: 200px !important;
}
.google-visualization-tooltip[clone] {
opacity: 1 !important;
}
html,
body,
timeline {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="timeline" style="height:90%"></div>内容总结
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