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python/webprompt-shell.html at trunk · python-emscripten/python · GitHub
python-emscripten
python
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webprompt-shell.html
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<!doctype html
>
<
html
lang
="
en-us
"
>
<!-- Adapted from https://github.com/emscripten-core/emscripten/blob/master/src/shell_minimal.html -->
<
head
>
<
meta
charset
="
utf-8
"
>
<
meta
http-equiv
="
Content-Type
"
content
="
text/html; charset=utf-8
"
>
<
title
>
Emscripten-Generated Code
</
title
>
<
style
>
.
emscripten
{
margin-left
:
auto;
margin-right
:
auto;
display
:
block; }
textarea
.
emscripten
{
font-family
:
monospace;
width
:
80
%
; }
input
.
emscripten
{
font-family
:
monospace;
width
:
80
%
; }
div
.
emscripten
{
text-align
:
center; }
div
.
emscripten_border
{
border
:
1
px
solid black; }
/* the canvas *must not* have any border or padding, or mouse coords will be wrong */
canvas
.
emscripten
{
border
:
0
px
none;
background-color
:
black; }
.
spinner
{
height
:
50
px
;
width
:
50
px
;
margin
:
0
px
auto;
-webkit-animation
:
rotation
.8
s
linear infinite;
-moz-animation
:
rotation
.8
s
linear infinite;
-o-animation
:
rotation
.8
s
linear infinite;
animation
:
rotation
0.8
s
linear infinite;
border-left
:
10
px
solid
rgb
(
0
,
150
,
240
);
border-right
:
10
px
solid
rgb
(
0
,
150
,
240
);
border-bottom
:
10
px
solid
rgb
(
0
,
150
,
240
);
border-top
:
10
px
solid
rgb
(
100
,
0
,
200
);
border-radius
:
100
%
;
background-color
:
rgb
(
200
,
100
,
250
);
}
@-webkit-keyframes
rotation {
from
{
-webkit-transform
:
rotate
(
0
deg
);}
to
{
-webkit-transform
:
rotate
(
360
deg
);}
}
@-moz-keyframes
rotation {
from
{
-moz-transform
:
rotate
(
0
deg
);}
to
{
-moz-transform
:
rotate
(
360
deg
);}
}
@-o-keyframes
rotation {
from
{
-o-transform
:
rotate
(
0
deg
);}
to
{
-o-transform
:
rotate
(
360
deg
);}
}
@keyframes
rotation {
from
{
transform
:
rotate
(
0
deg
);}
to
{
transform
:
rotate
(
360
deg
);}
}
</
style
>
</
head
>
<
body
>
<
hr
/>
<
figure
style
="
overflow:visible;
"
id
="
spinner
"
>
<
div
class
="
spinner
"
>
</
div
>
<
center
style
="
margin-top:0.5em
"
>
<
strong
>
emscripten
</
strong
>
</
center
>
</
figure
>
<
div
class
="
emscripten
"
id
="
status
"
>
Downloading...
</
div
>
<
div
class
="
emscripten
"
>
<
progress
value
="
0
"
max
="
100
"
id
="
progress
"
hidden
=
1
>
</
progress
>
</
div
>
<
div
class
="
emscripten_border
"
>
<
canvas
class
="
emscripten
"
id
="
canvas
"
oncontextmenu
="
event.preventDefault()
"
tabindex
=
-1
>
</
canvas
>
</
div
>
<
hr
/>
<
div
class
="
emscripten
"
>
<
a
href
="
https://www.beuc.net/python-emscripten/python/dir?ci=tip
"
>
python-emscripten
</
a
>
bare-bones demo
</
div
>
<
hr
/>
<
textarea
class
="
emscripten
"
id
="
output
"
rows
="
8
"
readonly
="
readonly
"
>
</
textarea
>
<
input
type
="
text
"
class
="
emscripten
"
id
="
input
"
name
="
text
"
value
="
{'REPL':['press enter',2+2]}
"
/>
<
textarea
class
="
emscripten
"
id
="
file
"
rows
="
8
"
>
# Python script
def f(x):
return x**2
print("hello, world!", f(3))
</
textarea
>
<
button
class
="
emscripten
"
onclick
="
execute()
"
>
Execute
</
button
>
<
hr
>
<
script
type
='
text/javascript
'
>
var
statusElement
=
document
.
getElementById
(
'status'
)
;
var
progressElement
=
document
.
getElementById
(
'progress'
)
;
var
spinnerElement
=
document
.
getElementById
(
'spinner'
)
;
var
Module
=
{
preRun
:
[
]
,
postRun
:
[
]
,
print
:
(
function
(
)
{
var
element
=
document
.
getElementById
(
'output'
)
;
if
(
element
)
element
.
value
=
''
;
// clear browser cache
return
function
(
text
)
{
if
(
arguments
.
length
>
1
)
text
=
Array
.
prototype
.
slice
.
call
(
arguments
)
.
join
(
' '
)
;
// These replacements are necessary if you render to raw HTML
//text = text.replace(/&/g, "&");
//text = text.replace(/</g, "<");
//text = text.replace(/>/g, ">");
//text = text.replace('\n', '<br>', 'g');
console
.
log
(
text
)
;
if
(
element
)
{
element
.
value
+=
text
+
"\n"
;
element
.
scrollTop
=
element
.
scrollHeight
;
// focus on bottom
}
}
;
}
)
(
)
,
printErr
:
function
(
text
)
{
if
(
arguments
.
length
>
1
)
text
=
Array
.
prototype
.
slice
.
call
(
arguments
)
.
join
(
' '
)
;
console
.
error
(
text
)
;
}
,
canvas
:
(
function
(
)
{
var
canvas
=
document
.
getElementById
(
'canvas'
)
;
// As a default initial behavior, pop up an alert when webgl context is lost. To make your
// application robust, you may want to override this behavior before shipping!
// See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2
canvas
.
addEventListener
(
"webglcontextlost"
,
function
(
e
)
{
alert
(
'WebGL context lost. You will need to reload the page.'
)
;
e
.
preventDefault
(
)
;
}
,
false
)
;
return
canvas
;
}
)
(
)
,
setStatus
:
function
(
text
)
{
if
(
!
Module
.
setStatus
.
last
)
Module
.
setStatus
.
last
=
{
time
:
Date
.
now
(
)
,
text
:
''
}
;
if
(
text
===
Module
.
setStatus
.
last
.
text
)
return
;
var
m
=
text
.
match
(
/
(
[
^
(
]
+
)
\(
(
\d
+
(
\.
\d
+
)
?
)
\/
(
\d
+
)
\)
/
)
;
var
now
=
Date
.
now
(
)
;
if
(
m
&&
now
-
Module
.
setStatus
.
last
.
time
<
30
)
return
;
// if this is a progress update, skip it if too soon
Module
.
setStatus
.
last
.
time
=
now
;
Module
.
setStatus
.
last
.
text
=
text
;
if
(
m
)
{
text
=
m
[
1
]
;
progressElement
.
value
=
parseInt
(
m
[
2
]
)
*
100
;
progressElement
.
max
=
parseInt
(
m
[
4
]
)
*
100
;
progressElement
.
hidden
=
false
;
spinnerElement
.
hidden
=
false
;
}
else
{
progressElement
.
value
=
null
;
progressElement
.
max
=
null
;
progressElement
.
hidden
=
true
;
if
(
!
text
)
spinnerElement
.
hidden
=
true
;
}
statusElement
.
innerHTML
=
text
;
}
,
totalDependencies
:
0
,
monitorRunDependencies
:
function
(
left
)
{
this
.
totalDependencies
=
Math
.
max
(
this
.
totalDependencies
,
left
)
;
Module
.
setStatus
(
left
?
'Preparing... ('
+
(
this
.
totalDependencies
-
left
)
+
'/'
+
this
.
totalDependencies
+
')'
:
'All downloads complete.'
)
;
}
}
;
Module
.
setStatus
(
'Downloading...'
)
;
window
.
onerror
=
function
(
)
{
Module
.
setStatus
(
'Exception thrown, see JavaScript console'
)
;
spinnerElement
.
style
.
display
=
'none'
;
Module
.
setStatus
=
function
(
text
)
{
if
(
text
)
Module
.
printErr
(
'[post-exception status] '
+
text
)
;
}
;
}
;
</
script
>
<!-- Python webprompt -->
<
script
type
='
text/javascript
'
>
Module
[
'printErr'
]
=
Module
[
'print'
]
;
var
ready
=
false
;
// Initialize Python if not already
Module
[
'onRuntimeInitialized'
]
=
function
(
)
{
// Module.cwrap('Py_Initialize', 'number', [])(); // done in webprompt-main.c
ready
=
true
;
}
function
execute
(
)
{
if
(
!
ready
)
{
Module
.
print
(
'Python is loading, please wait...'
)
;
return
;
}
Module
.
print
(
'>>> <textarea>'
)
;
source_code
=
document
.
getElementById
(
'file'
)
.
value
;
var
opts
=
{
}
if
(
typeof
Asyncify
===
'object'
)
opts
=
{
async
:
true
}
;
Module
.
cwrap
(
'PyRun_SimpleString'
,
'number'
,
[
'string'
]
,
opts
)
(
source_code
)
;
// or: Module.ccall('PyRun_SimpleString', 'number', ['string'], [source_code], opts);
}
var
hist
=
[
''
]
;
var
hist_index
=
0
;
var
input
=
document
.
getElementById
(
'input'
)
;
input
.
onkeydown
=
function
(
ev
)
{
if
(
!
ready
)
{
Module
.
print
(
'Python is loading, please wait...'
)
;
return
;
}
if
(
ev
.
key
===
'Enter'
)
{
Module
.
print
(
'>>> '
+
input
.
value
)
;
// Execute Python code with emulated stdin
FS
.
writeFile
(
'/tmp/input.py'
,
input
.
value
+
'\n'
)
;
var
opts
=
{
}
if
(
typeof
Asyncify
===
'object'
)
opts
=
{
async
:
true
}
;
Module
.
ccall
(
'pyruni'
,
'undefined'
,
[
]
,
[
]
,
opts
)
;
hist
[
hist
.
length
-
1
]
=
input
.
value
;
hist
.
push
(
''
)
;
hist_index
=
hist
.
length
-
1
;
input
.
value
=
''
;
}
else
if
(
ev
.
key
===
'ArrowUp'
)
{
hist
[
hist_index
]
=
input
.
value
;
hist_index
=
(
hist_index
>
0
)
?
hist_index
-
1
:
hist_index
;
input
.
value
=
hist
[
hist_index
]
;
}
else
if
(
ev
.
key
===
'ArrowDown'
)
{
hist
[
hist_index
]
=
input
.
value
;
hist_index
=
(
hist_index
<
hist
.
length
-
1
)
?
hist_index
+
1
:
hist_index
;
input
.
value
=
hist
[
hist_index
]
;
}
}
;
input
.
focus
(
)
;
</
script
>
<
script
type
='
text/javascript
'
src
="
pythonhome-data.js
"
>
</
script
>
{{{ SCRIPT }}}
</
body
>
</
html
>
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