diagram-js-code-editor/lib/Editor.js

384 lines
12 KiB
JavaScript
Executable File

import {attr as domAttr, classes as domClasses, event as domEvent} from 'min-dom';
import {assign} from 'min-dash';
import * as acebuilds from 'ace-builds/src-noconflict/ace';
// var Range = ace.require('ace/range').Range;
// Enable dynamic loading of formatting modes
acebuilds.config.set('basePath', 'https://unpkg.com/ace-builds@1.4.12/src-noconflict');
// https://stackoverflow.com/questions/16024721/how-can-i-highlight-multiple-lines-with-ace/16024998#16024998
const Range = ace.require('ace/range').Range
/**
* A code editor that allows you to add syntax highlighting and testing to bpmn properties panel
*/
export default function Editor(
config, injector, eventBus,
canvas, elementRegistry) {
const self = this;
this._canvas = canvas;
this._elementRegistry = elementRegistry;
this._eventBus = eventBus;
this._injector = injector;
this._state = {
isOpen: undefined,
};
this.init();
this.toggle((config && config.open) || false);
domEvent.bind(this.toggle_btn, 'click', function(event) {
event.preventDefault();
event.stopPropagation();
self.toggle();
});
domEvent.bind(this.run_btn, 'click', function(event) {
event.preventDefault();
event.stopPropagation();
self.validate();
});
domEvent.bind(this._parent, 'wheel', function(event) {
// stop propagation and handle scroll differently
event.preventDefault();
event.stopPropagation();
console.log("wheel");
});
// Check that the currently selected bpmn task is a script task and enable or disable coding window appropriately
eventBus.on('selection.changed', function(context) {
if (self.isOpen()) {
self.close();
}
domClasses(self._parent).remove('enabled');
if (context.newSelection.length > 0) {
console.log(context.newSelection);
if (context.newSelection[0].type == 'bpmn:ScriptTask' && true) { // TODO: Check if opened task is 'inline script'
domClasses(self._parent).add('enabled');
}
}
});
// Returns
eventBus.on('editor.validation.response', function(response) {
self.set_valid_state(response.state);
if (self.marker_id){
self._ide.session.removeMarker(self.marker_id);
}
if (response.line_number) {
self.marker_id = self._ide.session.addMarker(new Range(response.line_number - 1, 0, response.line_number - 1, 1), "errorMarker", "fullLine");
}
});
// Return a list of objects containing both the script name and description in plain text
eventBus.on('editor.scripts.response', function(response) {
if (response.scripts && response.scripts.length > 0) {
self.scripts = response.scripts;
} else {
self.scripts = [{
name: 'No Scripts Available',
description: 'Contact your system administrator if this is abnormal',
}];
}
self.scripts_menu.innerHTML = '';
self.scripts.forEach((element) =>
self.scripts_menu.innerHTML += `<li><a class="dropdown-item">${element.name}</a><div class="description">${element.description}</div></li>`);// <ul><li>${element.description}</ul></li>`); // <div class="description">${element.description}</div>
});
// Return a single object containing all data available to the open task
eventBus.on('editor.objects.response', function(response) {
self.objects = response.objects;
function recurseObject(data) {
let html = '';
for (const [key, value] of Object.entries(data)) {
if (typeof value == 'object' && value != undefined) {
html += `<li><a class="dropdown-item">${key} &raquo;</a><ul class="submenu dropdown-menu">` + recurseObject(value) + '</ul></li>';
} else {
let type = typeof value;
if (value == undefined) {
type = 'undefined';
}
html += `<li><a class="dropdown-item">${key}<div class="data-type ${type}">${type}</div></a></li>`;
}
}
return html;
}
self.objects_menu.innerHTML = recurseObject(self.objects);
});
}
Editor.$inject = [
'config.editor',
'injector',
'eventBus',
'canvas',
'elementRegistry',
];
Editor.prototype.set_valid_state = function(state) {
if (state == 'passing') {
domClasses(this.run_btn).add('passing');
domClasses(this.run_btn).remove('failing');
domClasses(this.run_btn).remove('unknown');
domClasses(this.run_btn).remove('waiting');
} else if (state == 'failing') {
domClasses(this.run_btn).add('failing');
domClasses(this.run_btn).remove('passing');
domClasses(this.run_btn).remove('unknown');
domClasses(this.run_btn).remove('waiting');
} else if (state == 'waiting') {
domClasses(this.run_btn).add('waiting');
domClasses(this.run_btn).remove('passing');
domClasses(this.run_btn).remove('unknown');
domClasses(this.run_btn).remove('failing');
} else {
domClasses(this.run_btn).add('unknown');
domClasses(this.run_btn).remove('passing');
domClasses(this.run_btn).remove('failing');
domClasses(this.run_btn).remove('waiting');
}
};
Editor.prototype.init = function() {
const canvas = this._canvas;
const container = canvas.getContainer();
// https://stackblitz.com/edit/bootstrap-navbar?file=index.html
// https://stackoverflow.com/questions/18292521/best-way-to-use-bootstrap-3-navbar-without-responsive-collapse
const template = `
<div class="djs-editor">
<div class="toggle" id="toggle"></div>
<div class="navbar navbar-fixed-top toolbar">
<div class="navbar-header pull-right">
<button type="button" id="run_btn" class="btn btn-default navbar-btn">Run <i class="fas fa-build" id="run_icon"></i></button>
<div class="nav-item dropdown">
<div class="dropdown-toggle" data-bs-toggle="dropdown"> Scripts </div>
<ul class="dropdown-menu" id="scripts_list">
<li> <a class="dropdown-item"> Dropdown item 1 </a></li>
</ul>
</div>
<div class="nav-item dropdown">
<div class="dropdown-toggle" data-bs-toggle="dropdown"> Data </div>
<ul class="dropdown-menu" id="objects_list">
<li> <a class="dropdown-item"> Run in order to capture task data </a>
</li>
</ul>
</div>
</div>
</div>
<div class="ide" id="editor_wrapper">
<div class="ide" id="editor"></div>
<div id="editor_dragbar" class="app_editor_dragbar"></div>
</div>
</div>`
;
const local_dom = new DOMParser()
.parseFromString(template, 'text/html');
// create parent div
const parent = this._parent = local_dom.body.firstElementChild;
this.toggle_btn = local_dom.getElementById('toggle');
this.run_btn = local_dom.getElementById('run_btn');
this.scripts_menu = local_dom.getElementById('scripts_list');
this.scripts = [];
this.objects_menu = local_dom.getElementById('objects_list');
this.objects = {};
container.appendChild(parent);
};
Editor.prototype.validate = function() {
this._eventBus.fire('editor.validation.request', {
// TODO: This method of grabbing the values seems unsafe
code: document.getElementById('cam-script-val').value,
task_name: document.getElementById('camunda-id').value,
});
};
Editor.prototype.open = function() {
assign(this._state, {isOpen: true});
domClasses(this._parent).add('open');
const translate = this._injector.get('translate', false) || function(s) {
return s;
};
domAttr(this.toggle_btn, 'title', translate('Close Editor'));
// ? There should be some way to pass the closed editor to ace
this._ide = ace.edit('editor');
this._ide.setAutoScrollEditorIntoView(true);
// makeAceEditorResizable(this._ide);
// this._ide.setTheme("ace/theme/monokai");
this._ide.session.setMode('ace/mode/python');
// grab script properties window
const codestore = document.getElementById('cam-script-val');
// Sync code window and a properties tab
this._ide.session.setValue(codestore.value);
codestore.addEventListener('input', (event) => {
this._ide.session.setValue(codestore.value);
// TODO: Consolidate this bit
domClasses(this.run_btn).remove('passing');
domClasses(this.run_btn).remove('failing');
this.set_valid_state('unknown');
});
this._ide.addEventListener('input', (event) => {
codestore.value = this._ide.getValue();
this.set_valid_state('unknown');
triggerEvent(codestore, 'change');
});
this._eventBus.fire('editor.toggle', {open: true});
this._eventBus.fire('editor.objects.request');
this._eventBus.fire('editor.scripts.request');
};
Editor.prototype.close = function() {
assign(this._state, {isOpen: false});
domClasses(this._parent).remove('open');
const translate = this._injector.get('translate', false) || function(s) {
return s;
};
domAttr(this.toggle_btn, 'title', translate('Open Editor'));
this._eventBus.fire('editor.toggle', {open: false});
};
Editor.prototype.toggle = function(open) {
const currentOpen = this.isOpen();
if (typeof open === 'undefined') {
open = !currentOpen;
}
if (open == currentOpen) {
return;
}
if (open) {
this.open();
} else {
this.close();
}
};
Editor.prototype.isOpen = function() {
return this._state.isOpen;
};
/**
* Triggers a change event
*
* @param element on which the change should be triggered
* @param eventType type of the event (e.g. click, change, ...)
*/
var triggerEvent = function(element, eventType) {
let evt;
eventType = eventType || 'change';
try {
// Chrome, Safari, Firefox
evt = new MouseEvent((eventType), {
view: window,
bubbles: true,
cancelable: true,
});
} catch (e) {
// IE 11, PhantomJS (wat!)
evt = document.createEvent('MouseEvent');
evt.initEvent((eventType), true, true);
}
return element.dispatchEvent(evt);
};
// https://ourcodeworld.com/articles/read/994/how-to-make-an-ace-editor-instance-resizable-by-the-user-dinamically-with-a-drag-and-drop-bar
/**
* * Global variable to store the ids of the status of the current dragged ace editor.
*/
window.draggingAceEditor = {};
let makeAceEditorResizable = function (editor){
let id_editor = editor.container.id;
let id_dragbar = '#' + id_editor + '_dragbar';
let id_wrapper = '#' + id_editor + '_wrapper';
let wpoffset = 0;
window.draggingAceEditor[id_editor] = false;
$(id_dragbar).mousedown(function(e) {
e.preventDefault();
window.draggingAceEditor[id_editor] = true;
var _editor = $('#' + id_editor);
var top_offset = _editor.offset().top - wpoffset;
// Set editor opacity to 0 to make transparent so our wrapper div shows
_editor.css('opacity', 0);
// handle mouse movement
$(document).mousemove(function(e){
var actualY = e.pageY - wpoffset;
// editor height
var eheight = actualY - top_offset;
// Set wrapper height
$(id_wrapper).css('height', eheight);
// Set dragbar opacity while dragging (set to 0 to not show)
$(id_dragbar).css('opacity', 0.15);
});
});
$(document).mouseup(function(e){
if (window.draggingAceEditor[id_editor])
{
var ctx_editor = $('#' + id_editor);
var actualY = e.pageY - wpoffset;
var top_offset = ctx_editor.offset().top - wpoffset;
var eheight = actualY - top_offset;
$( document ).unbind('mousemove');
// Set dragbar opacity back to 1
$(id_dragbar).css('opacity', 1);
// Set height on actual editor element, and opacity back to 1
ctx_editor.css('height', eheight).css('opacity', 1);
// Trigger ace editor resize()
editor.resize();
window.draggingAceEditor[id_editor] = false;
}
});
}