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add basic HTML serializer for header and footer#29

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chriddyp wants to merge 3 commits into from
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add basic HTML serializer for header and footer #29

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3c889ee
add basic HTML serializer for header and footer
chriddyp Nov 30, 2017
722d5a8
handle dict to inline css and `className` to `class`
chriddyp Dec 1, 2017
a4901fe
tests
chriddyp Dec 1, 2017
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2 changes: 2 additions & 0 deletions dash_html_components/__init__.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -2,6 +2,7 @@
import dash as _dash
import sys as _sys
from .version import __version__
from ._to_html5 import _to_html5

_current_path = _os.path.dirname(_os.path.abspath(__file__))

Expand All@@ -24,3 +25,4 @@
for component in _components:
setattr(_this_module, component.__name__, component)
setattr(component, '_js_dist', _js_dist)
setattr(component, 'to_html5', _to_html5)
65 changes: 65 additions & 0 deletions dash_html_components/_to_html5.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,65 @@
import collections
from dash.development.base_component import Component
import re

_VOID_ELEMENTS = [
'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
'link', 'meta', 'param', 'source', 'track', 'wbr'
]

_CAMELCASE_REGEX = re.compile('([a-z0-9])([A-Z])')


def _camel_case_to_css_case(name):
return _CAMELCASE_REGEX.sub(r'\1-\2', name).lower()


def _attribute(name, value):
if name == 'className':
return ('class', value,)
elif name == 'style':
# Dash CSS is camel-cased but CSS is hyphenated
# convert e.g. fontColor to font-color
inline_style = '; '.join([
'='.join([_camel_case_to_css_case(k), v])
for (k, v) in value.iteritems()

@cpsievertcpsievertJan 22, 2018

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Seems as though the = should be an :

])
return (name, inline_style,)
else:
return (name, value,)


def _to_html5(self):
def __to_html5(component):
if not isinstance(component, Component):
return str(component)
component_type = component._type.lower()

children = ''
if component_type not in _VOID_ELEMENTS:
children = getattr(component, 'children', '')
if isinstance(children, Component):
children = __to_html5(children)
elif isinstance(children, collections.MutableSequence):
children = '\n'.join([__to_html5(child) for child in children])
else:
children = str(children)
if children != '':
children = '\n' + children

closing = ''
if component_type not in _VOID_ELEMENTS:
closing = '\n</{}>'.format(component_type)

return '<{type}{properties}>{children}{closing}'.format(
type=component_type,
properties=''.join([
' {}="{}"'.format(
_attribute(p, getattr(component, p)))
for p in component._prop_names
if (hasattr(component, p) and p is not 'children')
]),
children=children,
closing=closing)

return __to_html5(self)
74 changes: 74 additions & 0 deletions tests/test_dash_html_components.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -39,3 +39,77 @@ def test_sample_items(self):
self.assertEqual(
layout._namespace, 'dash_html_components'
)

def test_to_html5(self):
test_cases = [
{
'name': 'None Children',
'input': html.Div(),
'output': '<div></div>'
},
{
'name': 'Text Children',
'input': html.Script('alert'),
'output': '<script>alert</script>'
},
{
'name': 'Numerical Children',
'input': html.Div(3),
'output': '<div>3</div>'
},
{
'name': 'Single Attribute',
'input': html.Script('alert', type='text/javascript'),
'output': '<script type="text/javascript">alert</script>'
},
{
'name': 'Multiple Attributes',
'input': html.A(href='codepen', target='_blank'),
'output': '<a href="codepen" target="_blank"></a>'
},
{
'name': 'Void Elements',
'input': html.Link(rel='stylesheet', type='text/css'),
'output': '<link rel="stylesheet" type="text/css">'
},
{
'name': 'Style',
'input': html.Div(style={'fontSize': '15px', 'color': 'blue'}),
'output': '<div style="font-size: 15px; color: blue"></div>'
},
{
'name': 'className',
'input': html.Div(className='container'),
'output': '<div class="container"></div>'
},
{
'name': 'Nested Children',
'input': html.Div([
3,
html.H1('header'),
html.Div(),
html.Div(
html.P([
html.Img(src='imgur', className='full-bleed')
])
)
], className='parent'),
'output': '\n'.join([
'<div class="parent">',
'3',
'<h1>header</h1>',
'<div></div>',
'<div>',
'<p>',
'<img src="imgur" class="full-bleed">'
'</p>',
'</div>',
'</div>'
])
}
]
for test_case in test_cases:
self.assertEqual(
test_case['input'].to_html5(),
test_case['output']
)
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
add basic HTML serializer for header and footer by chriddyp · Pull Request #29 · plotly/dash-html-components · GitHub
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This repository was archived by the owner on Aug 29, 2025. It is now read-only.

add basic HTML serializer for header and footer#29
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chriddyp
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3
commits into

from

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add basic HTML serializer for header and footer
#29
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3c889ee

add basic HTML serializer for header and footer


chriddyp Nov 30, 2017
722d5a8

handle dict to inline css and `className` to `class`


chriddyp Dec 1, 2017
a4901fe

tests


chriddyp Dec 1, 2017

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2 changes: 2 additions & 0 deletions
dash_html_components/__init__.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2,6 +2,7 @@
import dash as _dash
import sys as _sys
from .version import __version__
from ._to_html5 import _to_html5

_current_path = _os.path.dirname(_os.path.abspath(__file__))

Expand All@@ -24,3 +25,4 @@
for component in _components:
 setattr(_this_module, component.__name__, component)
 setattr(component, '_js_dist', _js_dist)
 setattr(component, 'to_html5', _to_html5)

65 changes: 65 additions & 0 deletions
dash_html_components/_to_html5.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,65 @@
import collections
from dash.development.base_component import Component
import re

_VOID_ELEMENTS = [
 'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
 'link', 'meta', 'param', 'source', 'track', 'wbr'
]

_CAMELCASE_REGEX = re.compile('([a-z0-9])([A-Z])')


def _camel_case_to_css_case(name):
 return _CAMELCASE_REGEX.sub(r'\1-\2', name).lower()


def _attribute(name, value):
 if name == 'className':
 return ('class', value,)
 elif name == 'style':
 # Dash CSS is camel-cased but CSS is hyphenated
 # convert e.g. fontColor to font-color
 inline_style = '; '.join([
 '='.join([_camel_case_to_css_case(k), v])
 for (k, v) in value.iteritems()
@cpsievertcpsievertJan 22, 2018

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Seems as though the = should be an :
 ])
 return (name, inline_style,)
 else:
 return (name, value,)


def _to_html5(self):
 def __to_html5(component):
 if not isinstance(component, Component):
 return str(component)
 component_type = component._type.lower()

 children = ''
 if component_type not in _VOID_ELEMENTS:
 children = getattr(component, 'children', '')
 if isinstance(children, Component):
 children = __to_html5(children)
 elif isinstance(children, collections.MutableSequence):
 children = '\n'.join([__to_html5(child) for child in children])
 else:
 children = str(children)
 if children != '':
 children = '\n' + children

 closing = ''
 if component_type not in _VOID_ELEMENTS:
 closing = '\n</{}>'.format(component_type)

 return '<{type}{properties}>{children}{closing}'.format(
 type=component_type,
 properties=''.join([
 ' {}="{}"'.format(
 _attribute(p, getattr(component, p)))
 for p in component._prop_names
 if (hasattr(component, p) and p is not 'children')
 ]),
 children=children,
 closing=closing)

 return __to_html5(self)

74 changes: 74 additions & 0 deletions
tests/test_dash_html_components.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -39,3 +39,77 @@ def test_sample_items(self):
 self.assertEqual(
 layout._namespace, 'dash_html_components'
 )

 def test_to_html5(self):
 test_cases = [
 {
 'name': 'None Children',
 'input': html.Div(),
 'output': '<div></div>'
 },
 {
 'name': 'Text Children',
 'input': html.Script('alert'),
 'output': '<script>alert</script>'
 },
 {
 'name': 'Numerical Children',
 'input': html.Div(3),
 'output': '<div>3</div>'
 },
 {
 'name': 'Single Attribute',
 'input': html.Script('alert', type='text/javascript'),
 'output': '<script type="text/javascript">alert</script>'
 },
 {
 'name': 'Multiple Attributes',
 'input': html.A(href='codepen', target='_blank'),
 'output': '<a href="codepen" target="_blank"></a>'
 },
 {
 'name': 'Void Elements',
 'input': html.Link(rel='stylesheet', type='text/css'),
 'output': '<link rel="stylesheet" type="text/css">'
 },
 {
 'name': 'Style',
 'input': html.Div(style={'fontSize': '15px', 'color': 'blue'}),
 'output': '<div style="font-size: 15px; color: blue"></div>'
 },
 {
 'name': 'className',
 'input': html.Div(className='container'),
 'output': '<div class="container"></div>'
 },
 {
 'name': 'Nested Children',
 'input': html.Div([
 3,
 html.H1('header'),
 html.Div(),
 html.Div(
 html.P([
 html.Img(src='imgur', className='full-bleed')
 ])
 )
 ], className='parent'),
 'output': '\n'.join([
 '<div class="parent">',
 '3',
 '<h1>header</h1>',
 '<div></div>',
 '<div>',
 '<p>',
 '<img src="imgur" class="full-bleed">'
 '</p>',
 '</div>',
 '</div>'
 ])
 }
 ]
 for test_case in test_cases:
 self.assertEqual(
 test_case['input'].to_html5(),
 test_case['output']
 )

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
add basic HTML serializer for header and footer by chriddyp · Pull Request #29 · plotly/dash-html-components · GitHub
Skip to content

This repository was archived by the owner on Aug 29, 2025. It is now read-only.

add basic HTML serializer for header and footer#29
 Closed

chriddyp
wants to merge
3
commits into

from

 Closed


add basic HTML serializer for header and footer
#29
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3c889ee

add basic HTML serializer for header and footer


chriddyp Nov 30, 2017
722d5a8

handle dict to inline css and `className` to `class`


chriddyp Dec 1, 2017
a4901fe

tests


chriddyp Dec 1, 2017

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2 changes: 2 additions & 0 deletions
dash_html_components/__init__.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2,6 +2,7 @@
import dash as _dash
import sys as _sys
from .version import __version__
from ._to_html5 import _to_html5

_current_path = _os.path.dirname(_os.path.abspath(__file__))

Expand All@@ -24,3 +25,4 @@
for component in _components:
 setattr(_this_module, component.__name__, component)
 setattr(component, '_js_dist', _js_dist)
 setattr(component, 'to_html5', _to_html5)

65 changes: 65 additions & 0 deletions
dash_html_components/_to_html5.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,65 @@
import collections
from dash.development.base_component import Component
import re

_VOID_ELEMENTS = [
 'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
 'link', 'meta', 'param', 'source', 'track', 'wbr'
]

_CAMELCASE_REGEX = re.compile('([a-z0-9])([A-Z])')


def _camel_case_to_css_case(name):
 return _CAMELCASE_REGEX.sub(r'\1-\2', name).lower()


def _attribute(name, value):
 if name == 'className':
 return ('class', value,)
 elif name == 'style':
 # Dash CSS is camel-cased but CSS is hyphenated
 # convert e.g. fontColor to font-color
 inline_style = '; '.join([
 '='.join([_camel_case_to_css_case(k), v])
 for (k, v) in value.iteritems()
@cpsievertcpsievertJan 22, 2018

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Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Seems as though the = should be an :
 ])
 return (name, inline_style,)
 else:
 return (name, value,)


def _to_html5(self):
 def __to_html5(component):
 if not isinstance(component, Component):
 return str(component)
 component_type = component._type.lower()

 children = ''
 if component_type not in _VOID_ELEMENTS:
 children = getattr(component, 'children', '')
 if isinstance(children, Component):
 children = __to_html5(children)
 elif isinstance(children, collections.MutableSequence):
 children = '\n'.join([__to_html5(child) for child in children])
 else:
 children = str(children)
 if children != '':
 children = '\n' + children

 closing = ''
 if component_type not in _VOID_ELEMENTS:
 closing = '\n</{}>'.format(component_type)

 return '<{type}{properties}>{children}{closing}'.format(
 type=component_type,
 properties=''.join([
 ' {}="{}"'.format(
 _attribute(p, getattr(component, p)))
 for p in component._prop_names
 if (hasattr(component, p) and p is not 'children')
 ]),
 children=children,
 closing=closing)

 return __to_html5(self)

74 changes: 74 additions & 0 deletions
tests/test_dash_html_components.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -39,3 +39,77 @@ def test_sample_items(self):
 self.assertEqual(
 layout._namespace, 'dash_html_components'
 )

 def test_to_html5(self):
 test_cases = [
 {
 'name': 'None Children',
 'input': html.Div(),
 'output': '<div></div>'
 },
 {
 'name': 'Text Children',
 'input': html.Script('alert'),
 'output': '<script>alert</script>'
 },
 {
 'name': 'Numerical Children',
 'input': html.Div(3),
 'output': '<div>3</div>'
 },
 {
 'name': 'Single Attribute',
 'input': html.Script('alert', type='text/javascript'),
 'output': '<script type="text/javascript">alert</script>'
 },
 {
 'name': 'Multiple Attributes',
 'input': html.A(href='codepen', target='_blank'),
 'output': '<a href="codepen" target="_blank"></a>'
 },
 {
 'name': 'Void Elements',
 'input': html.Link(rel='stylesheet', type='text/css'),
 'output': '<link rel="stylesheet" type="text/css">'
 },
 {
 'name': 'Style',
 'input': html.Div(style={'fontSize': '15px', 'color': 'blue'}),
 'output': '<div style="font-size: 15px; color: blue"></div>'
 },
 {
 'name': 'className',
 'input': html.Div(className='container'),
 'output': '<div class="container"></div>'
 },
 {
 'name': 'Nested Children',
 'input': html.Div([
 3,
 html.H1('header'),
 html.Div(),
 html.Div(
 html.P([
 html.Img(src='imgur', className='full-bleed')
 ])
 )
 ], className='parent'),
 'output': '\n'.join([
 '<div class="parent">',
 '3',
 '<h1>header</h1>',
 '<div></div>',
 '<div>',
 '<p>',
 '<img src="imgur" class="full-bleed">'
 '</p>',
 '</div>',
 '</div>'
 ])
 }
 ]
 for test_case in test_cases:
 self.assertEqual(
 test_case['input'].to_html5(),
 test_case['output']
 )

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
add basic HTML serializer for header and footer by chriddyp · Pull Request #29 · plotly/dash-html-components · GitHub
Skip to content

This repository was archived by the owner on Aug 29, 2025. It is now read-only.

add basic HTML serializer for header and footer#29
 Closed

chriddyp
wants to merge
3
commits into

from

 Closed


add basic HTML serializer for header and footer
#29
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3c889ee

add basic HTML serializer for header and footer


chriddyp Nov 30, 2017
722d5a8

handle dict to inline css and `className` to `class`


chriddyp Dec 1, 2017
a4901fe

tests


chriddyp Dec 1, 2017

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2 changes: 2 additions & 0 deletions
dash_html_components/__init__.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2,6 +2,7 @@
import dash as _dash
import sys as _sys
from .version import __version__
from ._to_html5 import _to_html5

_current_path = _os.path.dirname(_os.path.abspath(__file__))

Expand All@@ -24,3 +25,4 @@
for component in _components:
 setattr(_this_module, component.__name__, component)
 setattr(component, '_js_dist', _js_dist)
 setattr(component, 'to_html5', _to_html5)

65 changes: 65 additions & 0 deletions
dash_html_components/_to_html5.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,65 @@
import collections
from dash.development.base_component import Component
import re

_VOID_ELEMENTS = [
 'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
 'link', 'meta', 'param', 'source', 'track', 'wbr'
]

_CAMELCASE_REGEX = re.compile('([a-z0-9])([A-Z])')


def _camel_case_to_css_case(name):
 return _CAMELCASE_REGEX.sub(r'\1-\2', name).lower()


def _attribute(name, value):
 if name == 'className':
 return ('class', value,)
 elif name == 'style':
 # Dash CSS is camel-cased but CSS is hyphenated
 # convert e.g. fontColor to font-color
 inline_style = '; '.join([
 '='.join([_camel_case_to_css_case(k), v])
 for (k, v) in value.iteritems()
@cpsievertcpsievertJan 22, 2018

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The reason will be displayed to describe this comment to others. Learn more.

Seems as though the = should be an :
 ])
 return (name, inline_style,)
 else:
 return (name, value,)


def _to_html5(self):
 def __to_html5(component):
 if not isinstance(component, Component):
 return str(component)
 component_type = component._type.lower()

 children = ''
 if component_type not in _VOID_ELEMENTS:
 children = getattr(component, 'children', '')
 if isinstance(children, Component):
 children = __to_html5(children)
 elif isinstance(children, collections.MutableSequence):
 children = '\n'.join([__to_html5(child) for child in children])
 else:
 children = str(children)
 if children != '':
 children = '\n' + children

 closing = ''
 if component_type not in _VOID_ELEMENTS:
 closing = '\n</{}>'.format(component_type)

 return '<{type}{properties}>{children}{closing}'.format(
 type=component_type,
 properties=''.join([
 ' {}="{}"'.format(
 _attribute(p, getattr(component, p)))
 for p in component._prop_names
 if (hasattr(component, p) and p is not 'children')
 ]),
 children=children,
 closing=closing)

 return __to_html5(self)

74 changes: 74 additions & 0 deletions
tests/test_dash_html_components.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -39,3 +39,77 @@ def test_sample_items(self):
 self.assertEqual(
 layout._namespace, 'dash_html_components'
 )

 def test_to_html5(self):
 test_cases = [
 {
 'name': 'None Children',
 'input': html.Div(),
 'output': '<div></div>'
 },
 {
 'name': 'Text Children',
 'input': html.Script('alert'),
 'output': '<script>alert</script>'
 },
 {
 'name': 'Numerical Children',
 'input': html.Div(3),
 'output': '<div>3</div>'
 },
 {
 'name': 'Single Attribute',
 'input': html.Script('alert', type='text/javascript'),
 'output': '<script type="text/javascript">alert</script>'
 },
 {
 'name': 'Multiple Attributes',
 'input': html.A(href='codepen', target='_blank'),
 'output': '<a href="codepen" target="_blank"></a>'
 },
 {
 'name': 'Void Elements',
 'input': html.Link(rel='stylesheet', type='text/css'),
 'output': '<link rel="stylesheet" type="text/css">'
 },
 {
 'name': 'Style',
 'input': html.Div(style={'fontSize': '15px', 'color': 'blue'}),
 'output': '<div style="font-size: 15px; color: blue"></div>'
 },
 {
 'name': 'className',
 'input': html.Div(className='container'),
 'output': '<div class="container"></div>'
 },
 {
 'name': 'Nested Children',
 'input': html.Div([
 3,
 html.H1('header'),
 html.Div(),
 html.Div(
 html.P([
 html.Img(src='imgur', className='full-bleed')
 ])
 )
 ], className='parent'),
 'output': '\n'.join([
 '<div class="parent">',
 '3',
 '<h1>header</h1>',
 '<div></div>',
 '<div>',
 '<p>',
 '<img src="imgur" class="full-bleed">'
 '</p>',
 '</div>',
 '</div>'
 ])
 }
 ]
 for test_case in test_cases:
 self.assertEqual(
 test_case['input'].to_html5(),
 test_case['output']
 )

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
add basic HTML serializer for header and footer by chriddyp · Pull Request #29 · plotly/dash-html-components · GitHub
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This repository was archived by the owner on Aug 29, 2025. It is now read-only.

add basic HTML serializer for header and footer#29
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from

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add basic HTML serializer for header and footer
#29
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3c889ee

add basic HTML serializer for header and footer


chriddyp Nov 30, 2017
722d5a8

handle dict to inline css and `className` to `class`


chriddyp Dec 1, 2017
a4901fe

tests


chriddyp Dec 1, 2017

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2 changes: 2 additions & 0 deletions
dash_html_components/__init__.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2,6 +2,7 @@
import dash as _dash
import sys as _sys
from .version import __version__
from ._to_html5 import _to_html5

_current_path = _os.path.dirname(_os.path.abspath(__file__))

Expand All@@ -24,3 +25,4 @@
for component in _components:
 setattr(_this_module, component.__name__, component)
 setattr(component, '_js_dist', _js_dist)
 setattr(component, 'to_html5', _to_html5)

65 changes: 65 additions & 0 deletions
dash_html_components/_to_html5.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,65 @@
import collections
from dash.development.base_component import Component
import re

_VOID_ELEMENTS = [
 'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
 'link', 'meta', 'param', 'source', 'track', 'wbr'
]

_CAMELCASE_REGEX = re.compile('([a-z0-9])([A-Z])')


def _camel_case_to_css_case(name):
 return _CAMELCASE_REGEX.sub(r'\1-\2', name).lower()


def _attribute(name, value):
 if name == 'className':
 return ('class', value,)
 elif name == 'style':
 # Dash CSS is camel-cased but CSS is hyphenated
 # convert e.g. fontColor to font-color
 inline_style = '; '.join([
 '='.join([_camel_case_to_css_case(k), v])
 for (k, v) in value.iteritems()
@cpsievertcpsievertJan 22, 2018

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Seems as though the = should be an :
 ])
 return (name, inline_style,)
 else:
 return (name, value,)


def _to_html5(self):
 def __to_html5(component):
 if not isinstance(component, Component):
 return str(component)
 component_type = component._type.lower()

 children = ''
 if component_type not in _VOID_ELEMENTS:
 children = getattr(component, 'children', '')
 if isinstance(children, Component):
 children = __to_html5(children)
 elif isinstance(children, collections.MutableSequence):
 children = '\n'.join([__to_html5(child) for child in children])
 else:
 children = str(children)
 if children != '':
 children = '\n' + children

 closing = ''
 if component_type not in _VOID_ELEMENTS:
 closing = '\n</{}>'.format(component_type)

 return '<{type}{properties}>{children}{closing}'.format(
 type=component_type,
 properties=''.join([
 ' {}="{}"'.format(
 _attribute(p, getattr(component, p)))
 for p in component._prop_names
 if (hasattr(component, p) and p is not 'children')
 ]),
 children=children,
 closing=closing)

 return __to_html5(self)

74 changes: 74 additions & 0 deletions
tests/test_dash_html_components.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -39,3 +39,77 @@ def test_sample_items(self):
 self.assertEqual(
 layout._namespace, 'dash_html_components'
 )

 def test_to_html5(self):
 test_cases = [
 {
 'name': 'None Children',
 'input': html.Div(),
 'output': '<div></div>'
 },
 {
 'name': 'Text Children',
 'input': html.Script('alert'),
 'output': '<script>alert</script>'
 },
 {
 'name': 'Numerical Children',
 'input': html.Div(3),
 'output': '<div>3</div>'
 },
 {
 'name': 'Single Attribute',
 'input': html.Script('alert', type='text/javascript'),
 'output': '<script type="text/javascript">alert</script>'
 },
 {
 'name': 'Multiple Attributes',
 'input': html.A(href='codepen', target='_blank'),
 'output': '<a href="codepen" target="_blank"></a>'
 },
 {
 'name': 'Void Elements',
 'input': html.Link(rel='stylesheet', type='text/css'),
 'output': '<link rel="stylesheet" type="text/css">'
 },
 {
 'name': 'Style',
 'input': html.Div(style={'fontSize': '15px', 'color': 'blue'}),
 'output': '<div style="font-size: 15px; color: blue"></div>'
 },
 {
 'name': 'className',
 'input': html.Div(className='container'),
 'output': '<div class="container"></div>'
 },
 {
 'name': 'Nested Children',
 'input': html.Div([
 3,
 html.H1('header'),
 html.Div(),
 html.Div(
 html.P([
 html.Img(src='imgur', className='full-bleed')
 ])
 )
 ], className='parent'),
 'output': '\n'.join([
 '<div class="parent">',
 '3',
 '<h1>header</h1>',
 '<div></div>',
 '<div>',
 '<p>',
 '<img src="imgur" class="full-bleed">'
 '</p>',
 '</div>',
 '</div>'
 ])
 }
 ]
 for test_case in test_cases:
 self.assertEqual(
 test_case['input'].to_html5(),
 test_case['output']
 )

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
add basic HTML serializer for header and footer by chriddyp · Pull Request #29 · plotly/dash-html-components · GitHub
Skip to content

This repository was archived by the owner on Aug 29, 2025. It is now read-only.

add basic HTML serializer for header and footer#29
 Closed

chriddyp
wants to merge
3
commits into

from

 Closed


add basic HTML serializer for header and footer
#29
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3c889ee

add basic HTML serializer for header and footer


chriddyp Nov 30, 2017
722d5a8

handle dict to inline css and `className` to `class`


chriddyp Dec 1, 2017
a4901fe

tests


chriddyp Dec 1, 2017

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2 changes: 2 additions & 0 deletions
dash_html_components/__init__.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2,6 +2,7 @@
import dash as _dash
import sys as _sys
from .version import __version__
from ._to_html5 import _to_html5

_current_path = _os.path.dirname(_os.path.abspath(__file__))

Expand All@@ -24,3 +25,4 @@
for component in _components:
 setattr(_this_module, component.__name__, component)
 setattr(component, '_js_dist', _js_dist)
 setattr(component, 'to_html5', _to_html5)

65 changes: 65 additions & 0 deletions
dash_html_components/_to_html5.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,65 @@
import collections
from dash.development.base_component import Component
import re

_VOID_ELEMENTS = [
 'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
 'link', 'meta', 'param', 'source', 'track', 'wbr'
]

_CAMELCASE_REGEX = re.compile('([a-z0-9])([A-Z])')


def _camel_case_to_css_case(name):
 return _CAMELCASE_REGEX.sub(r'\1-\2', name).lower()


def _attribute(name, value):
 if name == 'className':
 return ('class', value,)
 elif name == 'style':
 # Dash CSS is camel-cased but CSS is hyphenated
 # convert e.g. fontColor to font-color
 inline_style = '; '.join([
 '='.join([_camel_case_to_css_case(k), v])
 for (k, v) in value.iteritems()
@cpsievertcpsievertJan 22, 2018

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The reason will be displayed to describe this comment to others. Learn more.

Seems as though the = should be an :
 ])
 return (name, inline_style,)
 else:
 return (name, value,)


def _to_html5(self):
 def __to_html5(component):
 if not isinstance(component, Component):
 return str(component)
 component_type = component._type.lower()

 children = ''
 if component_type not in _VOID_ELEMENTS:
 children = getattr(component, 'children', '')
 if isinstance(children, Component):
 children = __to_html5(children)
 elif isinstance(children, collections.MutableSequence):
 children = '\n'.join([__to_html5(child) for child in children])
 else:
 children = str(children)
 if children != '':
 children = '\n' + children

 closing = ''
 if component_type not in _VOID_ELEMENTS:
 closing = '\n</{}>'.format(component_type)

 return '<{type}{properties}>{children}{closing}'.format(
 type=component_type,
 properties=''.join([
 ' {}="{}"'.format(
 _attribute(p, getattr(component, p)))
 for p in component._prop_names
 if (hasattr(component, p) and p is not 'children')
 ]),
 children=children,
 closing=closing)

 return __to_html5(self)

74 changes: 74 additions & 0 deletions
tests/test_dash_html_components.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -39,3 +39,77 @@ def test_sample_items(self):
 self.assertEqual(
 layout._namespace, 'dash_html_components'
 )

 def test_to_html5(self):
 test_cases = [
 {
 'name': 'None Children',
 'input': html.Div(),
 'output': '<div></div>'
 },
 {
 'name': 'Text Children',
 'input': html.Script('alert'),
 'output': '<script>alert</script>'
 },
 {
 'name': 'Numerical Children',
 'input': html.Div(3),
 'output': '<div>3</div>'
 },
 {
 'name': 'Single Attribute',
 'input': html.Script('alert', type='text/javascript'),
 'output': '<script type="text/javascript">alert</script>'
 },
 {
 'name': 'Multiple Attributes',
 'input': html.A(href='codepen', target='_blank'),
 'output': '<a href="codepen" target="_blank"></a>'
 },
 {
 'name': 'Void Elements',
 'input': html.Link(rel='stylesheet', type='text/css'),
 'output': '<link rel="stylesheet" type="text/css">'
 },
 {
 'name': 'Style',
 'input': html.Div(style={'fontSize': '15px', 'color': 'blue'}),
 'output': '<div style="font-size: 15px; color: blue"></div>'
 },
 {
 'name': 'className',
 'input': html.Div(className='container'),
 'output': '<div class="container"></div>'
 },
 {
 'name': 'Nested Children',
 'input': html.Div([
 3,
 html.H1('header'),
 html.Div(),
 html.Div(
 html.P([
 html.Img(src='imgur', className='full-bleed')
 ])
 )
 ], className='parent'),
 'output': '\n'.join([
 '<div class="parent">',
 '3',
 '<h1>header</h1>',
 '<div></div>',
 '<div>',
 '<p>',
 '<img src="imgur" class="full-bleed">'
 '</p>',
 '</div>',
 '</div>'
 ])
 }
 ]
 for test_case in test_cases:
 self.assertEqual(
 test_case['input'].to_html5(),
 test_case['output']
 )

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
add basic HTML serializer for header and footer by chriddyp · Pull Request #29 · plotly/dash-html-components · GitHub
Skip to content

This repository was archived by the owner on Aug 29, 2025. It is now read-only.

add basic HTML serializer for header and footer#29
 Closed

chriddyp
wants to merge
3
commits into

from

 Closed


add basic HTML serializer for header and footer
#29
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3c889ee

add basic HTML serializer for header and footer


chriddyp Nov 30, 2017
722d5a8

handle dict to inline css and `className` to `class`


chriddyp Dec 1, 2017
a4901fe

tests


chriddyp Dec 1, 2017

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2 changes: 2 additions & 0 deletions
dash_html_components/__init__.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -2,6 +2,7 @@
import dash as _dash
import sys as _sys
from .version import __version__
from ._to_html5 import _to_html5

_current_path = _os.path.dirname(_os.path.abspath(__file__))

Expand All@@ -24,3 +25,4 @@
for component in _components:
 setattr(_this_module, component.__name__, component)
 setattr(component, '_js_dist', _js_dist)
 setattr(component, 'to_html5', _to_html5)

65 changes: 65 additions & 0 deletions
dash_html_components/_to_html5.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,65 @@
import collections
from dash.development.base_component import Component
import re

_VOID_ELEMENTS = [
 'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
 'link', 'meta', 'param', 'source', 'track', 'wbr'
]

_CAMELCASE_REGEX = re.compile('([a-z0-9])([A-Z])')


def _camel_case_to_css_case(name):
 return _CAMELCASE_REGEX.sub(r'\1-\2', name).lower()


def _attribute(name, value):
 if name == 'className':
 return ('class', value,)
 elif name == 'style':
 # Dash CSS is camel-cased but CSS is hyphenated
 # convert e.g. fontColor to font-color
 inline_style = '; '.join([
 '='.join([_camel_case_to_css_case(k), v])
 for (k, v) in value.iteritems()
@cpsievertcpsievertJan 22, 2018

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The reason will be displayed to describe this comment to others. Learn more.

Seems as though the = should be an :
 ])
 return (name, inline_style,)
 else:
 return (name, value,)


def _to_html5(self):
 def __to_html5(component):
 if not isinstance(component, Component):
 return str(component)
 component_type = component._type.lower()

 children = ''
 if component_type not in _VOID_ELEMENTS:
 children = getattr(component, 'children', '')
 if isinstance(children, Component):
 children = __to_html5(children)
 elif isinstance(children, collections.MutableSequence):
 children = '\n'.join([__to_html5(child) for child in children])
 else:
 children = str(children)
 if children != '':
 children = '\n' + children

 closing = ''
 if component_type not in _VOID_ELEMENTS:
 closing = '\n</{}>'.format(component_type)

 return '<{type}{properties}>{children}{closing}'.format(
 type=component_type,
 properties=''.join([
 ' {}="{}"'.format(
 _attribute(p, getattr(component, p)))
 for p in component._prop_names
 if (hasattr(component, p) and p is not 'children')
 ]),
 children=children,
 closing=closing)

 return __to_html5(self)

74 changes: 74 additions & 0 deletions
tests/test_dash_html_components.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -39,3 +39,77 @@ def test_sample_items(self):
 self.assertEqual(
 layout._namespace, 'dash_html_components'
 )

 def test_to_html5(self):
 test_cases = [
 {
 'name': 'None Children',
 'input': html.Div(),
 'output': '<div></div>'
 },
 {
 'name': 'Text Children',
 'input': html.Script('alert'),
 'output': '<script>alert</script>'
 },
 {
 'name': 'Numerical Children',
 'input': html.Div(3),
 'output': '<div>3</div>'
 },
 {
 'name': 'Single Attribute',
 'input': html.Script('alert', type='text/javascript'),
 'output': '<script type="text/javascript">alert</script>'
 },
 {
 'name': 'Multiple Attributes',
 'input': html.A(href='codepen', target='_blank'),
 'output': '<a href="codepen" target="_blank"></a>'
 },
 {
 'name': 'Void Elements',
 'input': html.Link(rel='stylesheet', type='text/css'),
 'output': '<link rel="stylesheet" type="text/css">'
 },
 {
 'name': 'Style',
 'input': html.Div(style={'fontSize': '15px', 'color': 'blue'}),
 'output': '<div style="font-size: 15px; color: blue"></div>'
 },
 {
 'name': 'className',
 'input': html.Div(className='container'),
 'output': '<div class="container"></div>'
 },
 {
 'name': 'Nested Children',
 'input': html.Div([
 3,
 html.H1('header'),
 html.Div(),
 html.Div(
 html.P([
 html.Img(src='imgur', className='full-bleed')
 ])
 )
 ], className='parent'),
 'output': '\n'.join([
 '<div class="parent">',
 '3',
 '<h1>header</h1>',
 '<div></div>',
 '<div>',
 '<p>',
 '<img src="imgur" class="full-bleed">'
 '</p>',
 '</div>',
 '</div>'
 ])
 }
 ]
 for test_case in test_cases:
 self.assertEqual(
 test_case['input'].to_html5(),
 test_case['output']
 )

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
add basic HTML serializer for header and footer by chriddyp · Pull Request #29 · plotly/dash-html-components · GitHub
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This repository was archived by the owner on Aug 29, 2025. It is now read-only.

add basic HTML serializer for header and footer#29
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add basic HTML serializer for header and footer
#29
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3c889ee

add basic HTML serializer for header and footer


chriddyp Nov 30, 2017
722d5a8

handle dict to inline css and `className` to `class`


chriddyp Dec 1, 2017
a4901fe

tests


chriddyp Dec 1, 2017

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2 changes: 2 additions & 0 deletions
dash_html_components/__init__.py

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Original file line numberDiff line numberDiff line change
Expand Up@@ -2,6 +2,7 @@
import dash as _dash
import sys as _sys
from .version import __version__
from ._to_html5 import _to_html5

_current_path = _os.path.dirname(_os.path.abspath(__file__))

Expand All@@ -24,3 +25,4 @@
for component in _components:
 setattr(_this_module, component.__name__, component)
 setattr(component, '_js_dist', _js_dist)
 setattr(component, 'to_html5', _to_html5)

65 changes: 65 additions & 0 deletions
dash_html_components/_to_html5.py

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,65 @@
import collections
from dash.development.base_component import Component
import re

_VOID_ELEMENTS = [
 'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
 'link', 'meta', 'param', 'source', 'track', 'wbr'
]

_CAMELCASE_REGEX = re.compile('([a-z0-9])([A-Z])')


def _camel_case_to_css_case(name):
 return _CAMELCASE_REGEX.sub(r'\1-\2', name).lower()


def _attribute(name, value):
 if name == 'className':
 return ('class', value,)
 elif name == 'style':
 # Dash CSS is camel-cased but CSS is hyphenated
 # convert e.g. fontColor to font-color
 inline_style = '; '.join([
 '='.join([_camel_case_to_css_case(k), v])
 for (k, v) in value.iteritems()
@cpsievertcpsievertJan 22, 2018

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Seems as though the = should be an :
 ])
 return (name, inline_style,)
 else:
 return (name, value,)


def _to_html5(self):
 def __to_html5(component):
 if not isinstance(component, Component):
 return str(component)
 component_type = component._type.lower()

 children = ''
 if component_type not in _VOID_ELEMENTS:
 children = getattr(component, 'children', '')
 if isinstance(children, Component):
 children = __to_html5(children)
 elif isinstance(children, collections.MutableSequence):
 children = '\n'.join([__to_html5(child) for child in children])
 else:
 children = str(children)
 if children != '':
 children = '\n' + children

 closing = ''
 if component_type not in _VOID_ELEMENTS:
 closing = '\n</{}>'.format(component_type)

 return '<{type}{properties}>{children}{closing}'.format(
 type=component_type,
 properties=''.join([
 ' {}="{}"'.format(
 _attribute(p, getattr(component, p)))
 for p in component._prop_names
 if (hasattr(component, p) and p is not 'children')
 ]),
 children=children,
 closing=closing)

 return __to_html5(self)

74 changes: 74 additions & 0 deletions
tests/test_dash_html_components.py

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,3 +39,77 @@ def test_sample_items(self):
 self.assertEqual(
 layout._namespace, 'dash_html_components'
 )

 def test_to_html5(self):
 test_cases = [
 {
 'name': 'None Children',
 'input': html.Div(),
 'output': '<div></div>'
 },
 {
 'name': 'Text Children',
 'input': html.Script('alert'),
 'output': '<script>alert</script>'
 },
 {
 'name': 'Numerical Children',
 'input': html.Div(3),
 'output': '<div>3</div>'
 },
 {
 'name': 'Single Attribute',
 'input': html.Script('alert', type='text/javascript'),
 'output': '<script type="text/javascript">alert</script>'
 },
 {
 'name': 'Multiple Attributes',
 'input': html.A(href='codepen', target='_blank'),
 'output': '<a href="codepen" target="_blank"></a>'
 },
 {
 'name': 'Void Elements',
 'input': html.Link(rel='stylesheet', type='text/css'),
 'output': '<link rel="stylesheet" type="text/css">'
 },
 {
 'name': 'Style',
 'input': html.Div(style={'fontSize': '15px', 'color': 'blue'}),
 'output': '<div style="font-size: 15px; color: blue"></div>'
 },
 {
 'name': 'className',
 'input': html.Div(className='container'),
 'output': '<div class="container"></div>'
 },
 {
 'name': 'Nested Children',
 'input': html.Div([
 3,
 html.H1('header'),
 html.Div(),
 html.Div(
 html.P([
 html.Img(src='imgur', className='full-bleed')
 ])
 )
 ], className='parent'),
 'output': '\n'.join([
 '<div class="parent">',
 '3',
 '<h1>header</h1>',
 '<div></div>',
 '<div>',
 '<p>',
 '<img src="imgur" class="full-bleed">'
 '</p>',
 '</div>',
 '</div>'
 ])
 }
 ]
 for test_case in test_cases:
 self.assertEqual(
 test_case['input'].to_html5(),
 test_case['output']
 )