|
1
|
|
"""
|
|
2
|
|
@file
|
|
3
|
|
@brief Snap rendering in a notebook.
|
|
4
|
|
"""
|
|
5
|
1
|
import uuid
|
|
6
|
1
|
import os
|
|
7
|
1
|
import glob
|
|
8
|
1
|
from .snap import __file__ as location_js_snap
|
|
9
|
|
|
|
10
|
|
|
|
11
|
1
|
class RenderSnapRaw:
|
|
12
|
|
"""
|
|
13
|
|
Renders `Snap <https://snap.berkeley.edu/>`_ using javascript.
|
|
14
|
|
"""
|
|
15
|
|
|
|
16
|
1
|
def __init__(self, width="1000", height="600", divid=None, filename=None):
|
|
17
|
|
"""
|
|
18
|
|
initialize
|
|
19
|
|
|
|
20
|
|
@param width (str) width
|
|
21
|
|
@param height (str) height
|
|
22
|
|
@param divid (str|None) id of the div
|
|
23
|
|
@param filename (str|None) filename
|
|
24
|
|
"""
|
|
25
|
1
|
if divid == "scratch_div_id":
|
|
26
|
|
# we should use a static counter but it
|
|
27
|
|
# is very unlikely more than one snap will be added to
|
|
28
|
|
# a notebook
|
|
29
|
1
|
divid += "_%s" % str(uuid.uuid4()).replace("-", "")
|
|
30
|
|
|
|
31
|
1
|
self.filename = filename
|
|
32
|
1
|
self.divid = divid if divid else str(uuid.uuid4()).replace("-", "")
|
|
33
|
1
|
self.width = width
|
|
34
|
1
|
self.height = height
|
|
35
|
|
|
|
36
|
1
|
def generate_html(self):
|
|
37
|
|
"""
|
|
38
|
|
Return a couple (HTML, JS).
|
|
39
|
|
"""
|
|
40
|
1
|
w = self.width
|
|
41
|
1
|
h = self.height
|
|
42
|
1
|
divid = self.divid
|
|
43
|
|
|
|
44
|
1
|
js_path = os.path.dirname(location_js_snap)
|
|
45
|
1
|
files = [os.path.split(_)[-1] for _ in glob.glob(js_path + "/*.js")]
|
|
46
|
1
|
path = "/static/snap/"
|
|
47
|
1
|
js_libs = [path + _ for _ in files]
|
|
48
|
|
|
|
49
|
1
|
html_src = """
|
|
50
|
|
<div id="__DIV__div" style="position:relative; width:__WIDTH__px; height:__HEIGHT__px;">
|
|
51
|
|
Snap showing up soon...
|
|
52
|
|
<canvas id="__DIV__" style="width:__WIDTH__px; height:__HEIGHT__px; position:relative; " />
|
|
53
|
|
</div>
|
|
54
|
|
""".replace("__DIV__", divid).replace("__WIDTH__", w).replace("__HEIGHT__", h)
|
|
55
|
1
|
test_js = """<script>
|
|
56
|
|
var world__DIV__;
|
|
57
|
|
function loop__DIV__() {
|
|
58
|
|
world__DIV__.doOneCycle();
|
|
59
|
|
}
|
|
60
|
|
function start_snap__DIV__() {
|
|
61
|
|
var sec = document.getElementsByClassName("__DIV__div");
|
|
62
|
|
sec.innerHTML = "loading...";
|
|
63
|
|
world__DIV__ = new WorldMorph(document.getElementById('__DIV__'));
|
|
64
|
|
world__DIV__.worldCanvas.focus();
|
|
65
|
|
new IDE_Morph().openIn(world__DIV__);
|
|
66
|
|
setInterval(loop__DIV__, 1);
|
|
67
|
|
sec.innerHTML = "";
|
|
68
|
|
}
|
|
69
|
|
window.setTimeout(start_snap__DIV__,500);
|
|
70
|
|
</script>
|
|
71
|
|
""".replace("__DIV__", divid)
|
|
72
|
1
|
libs = ['<script type="text/javascript" src="{0}"></script>'.format(le)
|
|
73
|
|
for le in js_libs]
|
|
74
|
1
|
libs = "\n".join(libs)
|
|
75
|
|
|
|
76
|
1
|
return html_src, libs + "\n" + test_js
|
|
77
|
|
|
|
78
|
|
|
|
79
|
1
|
class RenderSnap(RenderSnapRaw):
|
|
80
|
|
"""
|
|
81
|
|
Render Snap using javascript, outputs only HTML.
|
|
82
|
|
"""
|
|
83
|
|
|
|
84
|
1
|
def _repr_html_(self):
|
|
85
|
1
|
ht, js = self.generate_html()
|
|
86
|
1
|
ht += "{0}".format(js)
|
|
87
|
1
|
return ht
|
sdpython