124 lines
2.7 KiB
JavaScript
124 lines
2.7 KiB
JavaScript
import CommandInterceptor from 'diagram-js/lib/command/CommandInterceptor';
|
|
|
|
import inherits from 'inherits';
|
|
|
|
import {
|
|
assign,
|
|
forEach
|
|
} from 'min-dash';
|
|
|
|
import {
|
|
query as domQuery
|
|
} from 'min-dom';
|
|
|
|
import {
|
|
attr as svgAttr
|
|
} from 'tiny-svg';
|
|
|
|
var LOW_PRIORITY = 250;
|
|
|
|
|
|
export default function BpmnReplacePreview(
|
|
eventBus, elementRegistry, elementFactory,
|
|
canvas, previewSupport) {
|
|
|
|
CommandInterceptor.call(this, eventBus);
|
|
|
|
/**
|
|
* Replace the visuals of all elements in the context which can be replaced
|
|
*
|
|
* @param {Object} context
|
|
*/
|
|
function replaceVisual(context) {
|
|
|
|
var replacements = context.canExecute.replacements;
|
|
|
|
forEach(replacements, function(replacement) {
|
|
|
|
var id = replacement.oldElementId;
|
|
|
|
var newElement = {
|
|
type: replacement.newElementType
|
|
};
|
|
|
|
// if the visual of the element is already replaced
|
|
if (context.visualReplacements[id]) {
|
|
return;
|
|
}
|
|
|
|
var element = elementRegistry.get(id);
|
|
|
|
assign(newElement, { x: element.x, y: element.y });
|
|
|
|
// create a temporary shape
|
|
var tempShape = elementFactory.createShape(newElement);
|
|
|
|
canvas.addShape(tempShape, element.parent);
|
|
|
|
// select the original SVG element related to the element and hide it
|
|
var gfx = domQuery('[data-element-id=' + element.id + ']', context.dragGroup);
|
|
|
|
if (gfx) {
|
|
svgAttr(gfx, { display: 'none' });
|
|
}
|
|
|
|
// clone the gfx of the temporary shape and add it to the drag group
|
|
var dragger = previewSupport.addDragger(tempShape, context.dragGroup);
|
|
|
|
context.visualReplacements[id] = dragger;
|
|
|
|
canvas.removeShape(tempShape);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Restore the original visuals of the previously replaced elements
|
|
*
|
|
* @param {Object} context
|
|
*/
|
|
function restoreVisual(context) {
|
|
|
|
var visualReplacements = context.visualReplacements;
|
|
|
|
forEach(visualReplacements, function(dragger, id) {
|
|
|
|
var originalGfx = domQuery('[data-element-id=' + id + ']', context.dragGroup);
|
|
|
|
if (originalGfx) {
|
|
svgAttr(originalGfx, { display: 'inline' });
|
|
}
|
|
|
|
dragger.remove();
|
|
|
|
if (visualReplacements[id]) {
|
|
delete visualReplacements[id];
|
|
}
|
|
});
|
|
}
|
|
|
|
eventBus.on('shape.move.move', LOW_PRIORITY, function(event) {
|
|
|
|
var context = event.context,
|
|
canExecute = context.canExecute;
|
|
|
|
if (!context.visualReplacements) {
|
|
context.visualReplacements = {};
|
|
}
|
|
|
|
if (canExecute.replacements) {
|
|
replaceVisual(context);
|
|
} else {
|
|
restoreVisual(context);
|
|
}
|
|
});
|
|
}
|
|
|
|
BpmnReplacePreview.$inject = [
|
|
'eventBus',
|
|
'elementRegistry',
|
|
'elementFactory',
|
|
'canvas',
|
|
'previewSupport'
|
|
];
|
|
|
|
inherits(BpmnReplacePreview, CommandInterceptor); |