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146 lines
4.7 KiB
Python
146 lines
4.7 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Taken from sphinx-contrib
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# https://bitbucket.org/birkenfeld/sphinx-contrib/src/a3d904f8ab24/youtube
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# If not otherwise noted, the extensions in this package are licensed
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# under the following license.
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#
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# Copyright (c) 2009 by the contributors (see AUTHORS file).
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from __future__ import division
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import re
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from docutils import nodes
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from docutils.parsers.rst import directives
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from sphinx.util.compat import Directive
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CONTROL_HEIGHT = 30
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def get_size(d, key):
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if key not in d:
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return None
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m = re.match("(\d+)(|%|px)$", d[key])
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if not m:
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raise ValueError("invalid size %r" % d[key])
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return int(m.group(1)), m.group(2) or "px"
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def css(d):
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return "; ".join(sorted("%s: %s" % kv for kv in d.iteritems()))
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class youtube(nodes.General, nodes.Element):
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pass
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def visit_youtube_node(self, node):
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aspect = node["aspect"]
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width = node["width"]
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height = node["height"]
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if aspect is None:
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aspect = 16, 9
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if (height is None) and (width is not None) and (width[1] == "%"):
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style = {
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"padding-top": "%dpx" % CONTROL_HEIGHT,
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"padding-bottom": "%f%%" % (width[0] * aspect[1] / aspect[0]),
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"width": "%d%s" % width,
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"position": "relative",
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}
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self.body.append(self.starttag(node, "div", style=css(style)))
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style = {
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"position": "absolute",
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"top": "0",
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"left": "0",
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"width": "100%",
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"height": "100%",
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"border": "0",
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}
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attrs = {
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"src": "http://www.youtube.com/embed/%s" % node["id"],
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"style": css(style),
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}
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self.body.append(self.starttag(node, "iframe", **attrs))
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self.body.append("</iframe></div>")
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else:
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if width is None:
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if height is None:
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width = 560, "px"
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else:
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width = height[0] * aspect[0] / aspect[1], "px"
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if height is None:
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height = width[0] * aspect[1] / aspect[0], "px"
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style = {
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"width": "%d%s" % width,
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"height": "%d%s" % (height[0] + CONTROL_HEIGHT, height[1]),
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"border": "0",
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}
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attrs = {
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"src": "http://www.youtube.com/embed/%s" % node["id"],
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"style": css(style),
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}
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self.body.append(self.starttag(node, "iframe", **attrs))
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self.body.append("</iframe>")
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def depart_youtube_node(self, node):
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pass
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class YouTube(Directive):
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has_content = True
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required_arguments = 1
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optional_arguments = 0
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final_argument_whitespace = False
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option_spec = {
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"width": directives.unchanged,
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"height": directives.unchanged,
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"aspect": directives.unchanged,
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}
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def run(self):
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if "aspect" in self.options:
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aspect = self.options.get("aspect")
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m = re.match("(\d+):(\d+)", aspect)
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if m is None:
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raise ValueError("invalid aspect ratio %r" % aspect)
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aspect = tuple(int(x) for x in m.groups())
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else:
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aspect = None
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width = get_size(self.options, "width")
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height = get_size(self.options, "height")
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return [youtube(id=self.arguments[0], aspect=aspect, width=width, height=height)]
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def setup(app):
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app.add_node(youtube, html=(visit_youtube_node, depart_youtube_node))
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app.add_directive("youtube", YouTube)
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