1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159 |
1×
1×
1×
1×
1×
1×
1×
71×
71×
18×
18×
18×
18×
18×
18×
18×
18×
4×
18×
18×
18×
18×
71×
19×
19×
19×
19×
19×
19×
8×
8×
11×
5×
5×
71×
24×
24×
19×
19×
71×
27×
27×
27×
27×
27×
27×
5×
5×
1×
1×
4×
1×
1×
3×
3×
5×
5×
27×
71×
18×
18×
18×
18×
18×
18×
18×
15×
15×
18×
4×
1×
| import {
classes as svgClasses,
remove as svgRemove
} from 'tiny-svg';
import {
addBendpoint
} from './BendpointUtil';
import { translate } from '../../util/SvgTransformUtil';
var MARKER_OK = 'connect-ok',
MARKER_NOT_OK = 'connect-not-ok',
MARKER_CONNECT_HOVER = 'connect-hover',
MARKER_CONNECT_UPDATING = 'djs-updating';
var COMMAND_RECONNECT_START = 'connection.reconnectStart',
COMMAND_RECONNECT_END = 'connection.reconnectEnd';
var HIGH_PRIORITY = 1100;
/**
* A component that implements moving of bendpoints
*/
export default function BendpointMovePreview(injector, eventBus, canvas) {
var connectionPreview = injector.get('connectionPreview', false);
// DRAGGING IMPLEMENTATION
eventBus.on('bendpoint.move.start', function(e) {
var context = e.context,
connection = context.connection,
originalWaypoints = connection.waypoints,
waypoints = originalWaypoints.slice(),
insert = context.insert,
idx = context.bendpointIndex;
// save waypoints to restore at the end
context.originalWaypoints = originalWaypoints;
if (insert) {
// insert placeholder for bendpoint to-be-added
waypoints.splice(idx, 0, { x: e.x, y: e.y });
}
connection.waypoints = waypoints;
// add dragger gfx
context.draggerGfx = addBendpoint(canvas.getLayer('overlays'));
svgClasses(context.draggerGfx).add('djs-dragging');
canvas.addMarker(connection, MARKER_CONNECT_UPDATING);
});
eventBus.on('bendpoint.move.hover', function(e) {
var context = e.context,
allowed = context.allowed,
hover = context.hover;
Eif (e.hover) {
canvas.addMarker(hover, MARKER_CONNECT_HOVER);
if (allowed) {
canvas.removeMarker(hover, MARKER_NOT_OK);
canvas.addMarker(hover, MARKER_OK);
} else if (allowed === false) {
canvas.removeMarker(hover, MARKER_OK);
canvas.addMarker(hover, MARKER_NOT_OK);
}
}
});
eventBus.on([
'bendpoint.move.out',
'bendpoint.move.cleanup'
], HIGH_PRIORITY, function(e) {
// remove connect marker
// if it was added
var hover = e.context.hover;
if (hover) {
canvas.removeMarker(hover, MARKER_CONNECT_HOVER);
canvas.removeMarker(hover, e.context.target ? MARKER_OK : MARKER_NOT_OK);
}
});
eventBus.on('bendpoint.move.move', function(e) {
var context = e.context,
moveType = context.type,
connection = e.connection,
waypoints = connection.waypoints.slice(),
bendpoint = { x: e.x, y: e.y },
hints;
if (connectionPreview) {
hints = {
source: connection.source,
target: connection.target
};
if (moveType === COMMAND_RECONNECT_START) {
hints.source = context.target;
hints.connectionStart = bendpoint;
} else if (moveType === COMMAND_RECONNECT_END) {
hints.target = context.target;
hints.connectionEnd = bendpoint;
} else {
hints.noLayout = true;
waypoints[context.bendpointIndex] = bendpoint;
}
hints.waypoints = waypoints;
connectionPreview.drawPreview(context, context.allowed, hints);
}
// add dragger gfx
translate(context.draggerGfx, e.x, e.y);
});
eventBus.on([
'bendpoint.move.end',
'bendpoint.move.cancel'
], HIGH_PRIORITY, function(e) {
var context = e.context,
hover = context.hover,
connection = context.connection;
// reassign original waypoints
connection.waypoints = context.originalWaypoints;
// remove dragger gfx
svgRemove(context.draggerGfx);
canvas.removeMarker(connection, MARKER_CONNECT_UPDATING);
if (hover) {
canvas.removeMarker(hover, MARKER_OK);
canvas.removeMarker(hover, context.target ? MARKER_OK : MARKER_NOT_OK);
}
if (connectionPreview) {
connectionPreview.cleanUp(context);
}
});
}
BendpointMovePreview.$inject = [
'injector',
'eventBus',
'canvas'
];
|