要向 lightbox 添加自定义控件,你可以如下定义一个新对象:
gantt.form_blocks["my_editor"]={
render:function(sns){ //sns - 区块的配置对象
return "html code of the editor here";
},
set_value:function(node,value,task,section){
//node - 上述定义的 html 元素
//value - 由 map_to 属性定义的值
//task - 任务对象
//section- 区块的配置对象
... code to set value to the element ...
},
get_value:function(node,task,section){
//node - 上述定义的 html 元素
//task - 任务对象
//section - 区块的配置对象
return "current value from editor";
},
focus:function(node){
//node - 上述定义的 html 元素
...code to set focus to the element...
}
}
请注意,在 "render" 函数返回的 HTML 代码中不要使用自闭合标签,否则可能会在部分浏览器中导致解析问题:
//这是错误的写法
render:function(){
return "<div id='box'/>";
}
//正确做法,请使用成对的开始和结束标签:
render:function(){
return "<div id='box'></div>"; // 推荐
}
Related sample: Custom control in the lightbox
lightbox 控件包含以下方法:
以下是创建一个含有两个输入框的自定义编辑器的示例:
gantt.form_blocks["my_editor"] = {
render: function (sns) {
return "<div class='dhx_cal_ltext' style='height:60px;'>"+
"Text <input class='editor_description' type='text'>"+
"<br/>Holders <input class='editor_holders' type='text'>"+
"</div>";
},
set_value: function (node, value, task) {
node.querySelector(".editor_description").value = value || "";
node.querySelector(".editor_holders").value = task.users || "";
},
get_value: function (node, task) {
task.users = node.querySelector(".editor_holders").value;
return node.querySelector(".editor_description").value;
},
focus: function (node) {
var a = node.querySelector(".editor_description");
a.select();
a.focus();
}
};
gantt.config.lightbox.sections = [
{ name:"description", height:200, map_to:"text", type:"my_editor", focus:true},
{ name:"time", height:72, type:"duration", map_to:"auto"}
];
Related sample: Custom control in the lightbox
你也可以创建一个自定义多选控件,用于选择多个值。
例如,可以基于 jQuery Chosen 插件 的控件,用于为任务分配多个资源。与默认的 Gantt resource control 不同,这个控件仅用于分配资源,不涉及数量。当你只需简单功能时,这是一个直接的选择。
Related sample: 3rd party multiselect control
要在 Gantt 图中集成基于 jQuery Chosen 的控件:
<script
src="https://code.jquery.com/jquery-3.3.1.min.js?v=5.2.4"
integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/chosen/1.8.7/chosen.jquery.js?v=5.2.4"></script>
<link rel="stylesheet" type="text/css"
href="https://cdnjs.cloudflare.com/ajax/libs/chosen/1.8.7/chosen.css?v=5.2.4">
gantt.form_blocks["multiselect"] = {
render: function (sns) {
var height = (sns.height || "23") + "px";
var html = "<div class='gantt_cal_ltext gantt_cal_chosen gantt_cal_multiselect'"+
"style='height:"+ height + ";'><select data-placeholder='...'"+
"class='chosen-select' multiple>";
if (sns.options) {
for (var i = 0; i < sns.options.length; i++) {
if(sns.unassigned_value !== undefined && sns.options[i].key==sns.unassigned_value){
continue;
}
html+="<option value='" +sns.options[i].key+ "'>"+sns.options[i].label+"</option>";
}
}
html += "</select></div>";
return html;
},
set_value: function (node, value, ev, sns) {
node.style.overflow = "visible";
node.parentNode.style.overflow = "visible";
node.style.display = "inline-block";
var select = $(node.firstChild);
if (value) {
value = (value + "").split(",");
select.val(value);
}
else {
select.val([]);
}
select.chosen();
if(sns.onchange){
select.change(function(){
sns.onchange.call(this);
})
}
select.trigger('chosen:updated');
select.trigger("change");
},
get_value: function (node, ev) {
var value = $(node.firstChild).val();
//value = value ? value.join(",") : null
return value;
},
focus: function (node) {
$(node.firstChild).focus();
}
};
gantt.config.lightbox.sections = [
{name:"description",height:38,map_to:"text",type:"textarea",focus: true},
{name:"owner",height:60, type:"multiselect", options:gantt.serverList("people"),
map_to:"owner_id", unassigned_value:5 },
{name: "time", type: "duration", map_to: "auto"}
];
unassigned_value 属性可以隐藏不应被选择的资源。将其设置为你希望排除的资源 ID。在上述示例中,id=5 的资源不会出现在控件中。
你也可以向 lightbox 添加自定义日期选择器控件,通过指定开始和结束日期来设置任务时长。
例如,可以使用 jQuery UI Datepicker 构建一个日期选择控件。
Related sample: 3rd party Datepicker control
在 Gantt 图中使用 jQuery Datepicker 控件:
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>
<link rel="stylesheet" type="text/css"
href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
(function () {
function startDatepicker(node){
return $(node).find("input[name='start']");
}
function endDateInput(node){
return $(node).find("input[name='end']");
}
gantt.form_blocks["datepicker"] = {
render: function (sns) { //sns - 区块的配置对象
return "<div class='gantt-lb-datepicker'>"+
"<input type='text' name='start'>"+
"<input type='text' name='end'>"+
"</div>";;
},
set_value: function (node, value, task, section) {
//node - 上述定义的 html 元素
//value - 由 map_to 属性定义的值
//task - 任务对象
//section- 区块的配置对象
startDatepicker(node).datepicker({
dateFormat: "yy-mm-dd",
onSelect: function (dateStr) {
var endValue = endDateInput(node).datepicker('getDate');
var startValue = startDatepicker(node).datepicker('getDate');
if(startValue && endValue){
if(endValue.valueOf() <= startValue.valueOf()){
endDateInput(node).datepicker("setDate",
gantt.calculateEndDate({
start_date: startValue, duration: 1, task:task
})
);
}
}
}
});
startDatepicker(node).datepicker("setDate", task.start_date);
endDateInput(node).datepicker({
dateFormat: "yy-mm-dd",
onSelect: function (dateStr) {
// gantt.ext.inlineEditors.save()
}
});
endDateInput(node).datepicker("setDate", task.end_date);
},
get_value: function (node, task, section) {
if(task.start_date && task.end_date) {
var start = startDatepicker(node).datepicker('getDate');
var end = endDateInput(node).datepicker('getDate');
if(end.valueOf() <= start.valueOf()){
end = gantt.calculateEndDate({
start_date: start, duration: 1, task:task
});
}
task.start_date = start;
task.end_date = end;
}
task.duration = gantt.calculateDuration(task);
},
focus: function (node) {
}
}
})();
gantt.config.lightbox.sections = [
{ name: "description", height: 70, map_to: "text", type: "textarea", focus: true },
{ name: "time", height: 72, map_to: "auto", type: "datepicker" }
];
在灯箱中添加 Bootstrap Datepicker 与集成 jQuery Datepicker 的方式类似。
Related sample: Bootstrap Datepicker control
要在 Gantt 图中集成 Bootstrap Datepicker 控件:
在页面中引入 Bootstrap 库的源文件;
定义控件逻辑:
(function () {
const startDatepicker = (node) => $(node).find("input[name='start']");
const endDateInput = (node) => $(node).find("input[name='end']");
gantt.form_blocks["datepicker"] = {
render: (sns) => {
const height = sns.height || 45;
return "<div class='gantt-lb-datepicker' style='height:" + height + "px;'>"+
"<input type='text' name='start'> - "+
"<input type='text' name='end'>"+
"</div>";;
},
set_value: (node, value, task, section) => {
const datepickerConfig = {
format: 'yyyy-mm-dd',
autoclose: true,
container: gantt.$container
};
startDatepicker(node).datepicker(datepickerConfig);
startDatepicker(node).datepicker('setDate',
value ? value.start_date : task.start_date
);
endDateInput(node).datepicker(datepickerConfig);
endDateInput(node).datepicker('setDate',
value ? value.end_date : task.end_date
);
startDatepicker(node).datepicker().on('changeDate', function(e) {
const endValue = endDateInput(node).datepicker('getDate');
const startValue = startDatepicker(node).datepicker('getDate');
if (startValue && endValue) {
if (endValue.valueOf() <= startValue.valueOf()) {
endDateInput(node).datepicker('setDate',
gantt.calculateEndDate({
start_date: startValue, duration: 1, task:task
})
);
}
}
});
},
get_value: (node, task, section) => {
const start = startDatepicker(node).datepicker('getDate');
let end = endDateInput(node).datepicker('getDate');
if (end.valueOf() <= start.valueOf()) {
end = gantt.calculateEndDate({
start_date: start,
duration: 1,
task:task
});
}
if (task.start_date && task.end_date) {
task.start_date = start;
task.end_date = end;
}
task.duration = gantt.calculateDuration(task);
return {
start_date: start,
end_date: end,
duration: task.duration
};
},
focus: (node) => {
}
}
})();
gantt.config.lightbox.sections = [
{ name: "description", height: 70, map_to: "text", type: "textarea", focus: true },
{ name: "time", height: 45, map_to: "auto", type: "datepicker" }
];
你也可以在灯箱中添加自定义的 Duration 控件,用于设置任务的开始日期以及持续天数。
Related sample: 3rd party Duration control
以下是基于 jQuery 添加自定义 Duration 控件的方法:
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>
<link rel="stylesheet" type="text/css"
href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
(function () {
function startDatepicker(node){
return $(node).find("input[name='start']");
}
function durationInput(node){
return $(node).find("input[name='duration']");
}
function endDateLabel(node){
return $(node).find("span.gantt-lb-datepicker-label");
}
var formatter = gantt.ext.formatters.durationFormatter({
enter: "day",
store: "day",
format: "auto"
});
gantt.form_blocks["datepicker_duration"] = {
render: function (sns) { //sns - section 的配置对象
return "<div class='gantt-lb-datepicker'>"+
"<label>Start:<input type='text' name='start'></label>"+
"<label>Duration: <input type='text' name='duration'></label>"+
"<span class='gantt-lb-datepicker-label'></span>"
"</div>";
},
set_value: function (node, value, task, section) {
//node - 与上面定义的 html 相关的 html 对象
//value - 由 map_to 属性定义的值
//task - 任务对象
//section- section 的配置对象
startDatepicker(node).datepicker({
dateFormat: "yy-mm-dd",
onSelect: function (dateStr) {
var endValue = durationInput(node).datepicker('getDate');
var startValue = startDatepicker(node).datepicker('getDate');
if(startValue && endValue){
if(endValue.valueOf() <= startValue.valueOf()){
durationInput(node).datepicker("setDate",
gantt.calculateEndDate({
start_date: startValue, duration: 1, task:task
})
);
}
}
}
});
startDatepicker(node).datepicker("setDate", task.start_date);
durationInput(node).val(formatter.format(task.duration));
endDateLabel(node).text(
"Ends: " + gantt.templates.task_date(task.end_date)
);
},
get_value: function (node, task, section) {
if(task.start_date && task.end_date) {
var start = startDatepicker(node).datepicker('getDate');
var end = task.end_date;
var duration = formatter.parse(durationInput(node).val());
if(duration && !isNaN(Number(duration))){
end = gantt.calculateEndDate({
start_date: start, duration: duration, task:task
});
}
task.start_date = start;
task.duration = duration;
task.end_date = end;
}
task.duration = gantt.calculateDuration(task);
return {
start_date: task.start_date,
end_date: task.end_date,
duration: task.duration
}
},
focus: function (node) {
}
}
})();
gantt.config.lightbox.sections = [
{ name: "description", height: 70, map_to: "text", type: "textarea", focus: true },
{ name: "time", height: 72, map_to: "auto", type: "datepicker_duration" }
];
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