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commit 3f2b516d8f346f91cf8d5799a2ae92ecff271cf9
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Fri Feb 16 12:43:28 2018 +0000
Add reveal_external
---
LICENSE | 23 ++++++
plugin/external/external.js | 193 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 216 insertions(+)
diff --git a/LICENSE b/LICENSE
index cb62e7c..a6cfd56 100644
--- a/LICENSE
+++ b/LICENSE
@@ -224,3 +224,26 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
+
+This product bundles reveal_external which is available under the following
License:
+
+Copyright (c) 2017 Jan Schoepke
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/plugin/external/external.js b/plugin/external/external.js
new file mode 100644
index 0000000..5e801e0
--- /dev/null
+++ b/plugin/external/external.js
@@ -0,0 +1,193 @@
+/*
+ * external.js
+ * Jan Schoepke <janschoe...@me.com>
+ * Released under the MIT license
+ * Load external files into a reveal.js presentation.
+ *
+ * This is a reveal.js plugin to load external html files. It replaces the
+ * content of any element with a data-external="file.ext#selector" with the
contents
+ * part of file.ext specified by the selector. If you use
+ * data-external-replace="file.ext#selector" the container element itself will
get
+ * replaced.
+ *
+ * Relative paths in "src" attributes in the loaded fragments will get prefixed
+ * with the path.
+ *
+ * external: {
+ * async: false,
+ * mapAttributes: ['src']
+ * }
+ *
+ * This started life as markdown.js. Thank you to whomever wrote it.
+ * This version is based on external.js by Cal Evans. Thanks Cal!
+ * Thanks to Thomas Weinert (https://github.com/ThomasWeinert) for massive
improvements in version 1.3!
+ */
+(function() {
+ "use strict";
+
+ var config = Reveal.getConfig() || {}, options;
+ config.external = config.external || {};
+ options = {
+ /*
+ Some plugins run into problems, because they expect to have
access
+ to the all of the slides. Enable on your own risk.
+ */
+ async: !!config.external.async,
+ /*
+ This will prefix the attributes (by default "src") in the
loaded
+ HTML with the path if they are relative paths (start with a
dot).
+ */
+ mapAttributes: config.external.mapAttributes instanceof Array
+ ? config.external.mapAttributes
+ : ( config.external.mapAttributes ? [ 'src' ] : [] )
+ };
+
+ var getTarget = function( node ) {
+ var url, isReplace;
+ url = node.getAttribute( 'data-external' ) || '';
+ isReplace = false;
+ if ( url === '' ) {
+ url = node.getAttribute( 'data-external-replace' ) ||
'';
+ isReplace = true;
+ }
+ if ( url.length > 0 ) {
+ var r = url.match( /^([^#]+)(?:#(.+))?/ );
+ return {
+ url: r[1] || "",
+ fragment: r[2] || "",
+ isReplace: isReplace
+ };
+ }
+ return null;
+ };
+
+ var convertUrl = function( src, path ) {
+ if ( path !== '' && src.indexOf( '.' ) === 0 ) {
+ return path + '/' + src;
+ }
+ return src;
+ };
+
+ var convertAttributes = function( attributeName, container, path ) {
+ var nodes = container.querySelectorAll( '[' + attributeName +
']' );
+ if ( container.getAttribute( attributeName ) ) {
+ container.setAttribute(
+ attributeName,
+ convertUrl( container.getAttribute(
attributeName ), path )
+ );
+ }
+ for ( var i = 0, c = nodes.length; i < c; i++ ) {
+ nodes[i].setAttribute(
+ attributeName,
+ convertUrl( nodes[i].getAttribute(
attributeName ), path )
+ );
+ }
+ };
+
+ var convertUrls = function( container, path ) {
+ for ( var i = 0, c = options.mapAttributes.length; i < c; i++ )
{
+ convertAttributes( options.mapAttributes[i], container,
path );
+ }
+ };
+
+ var updateSection = function( section, target, path ) {
+ var url = path !== "" ? ( path + "/" + target.url ) :
target.url;
+ var xhr = new XMLHttpRequest();
+
+ xhr.onreadystatechange = function( xhr, target, url, fragment,
replace ) {
+ return function() {
+ var html, nodes, node, path;
+ if ( xhr.readyState === 4 ) {
+ /*
+ file protocol yields status code 0
+ (useful for local debug, mobile applications etc.)
+ */
+ if (
+ ( xhr.status >= 200 &&
xhr.status < 300 ) ||
+ ( xhr.status === 0 &&
xhr.responseText !== '')
+ ) {
+ path = url.substr( 0,
url.lastIndexOf( "/" ) );
+ html = ( new DOMParser
).parseFromString(
+ xhr.responseText,
'text/html'
+ );
+ if ( fragment !== '' ) {
+ nodes =
html.querySelectorAll( fragment );
+ } else {
+ nodes =
html.querySelector( 'body' ).childNodes;
+ }
+ if ( !replace ) {
+ target.innerHTML = '';
+ }
+ for ( var i = 0, c =
nodes.length; i < c; i++ ) {
+ convertUrls( nodes[i],
path );
+ node =
document.importNode( nodes[i], true );
+ replace
+ ?
target.parentNode.insertBefore( node, target )
+ :
target.appendChild( node );
+
+ if ( options.async ) {
+ Reveal.sync();
+
Reveal.setState( Reveal.getState() );
+ }
+
+ if ( node instanceof
Element ) {
+ loadExternal(
node, path );
+ }
+ }
+ if ( replace ) {
+
target.parentNode.removeChild( target );
+ }
+ }
+ else {
+ console.log(
+ 'ERROR: The attempt to
fetch ' + url +
+ ' failed with HTTP
status ' + xhr.status + '.'
+ );
+ }
+ }
+ };
+ }( xhr, section, url, target.fragment, target.isReplace );
+
+ xhr.open( "GET", url, options.async );
+ try {
+ xhr.send();
+ }
+ catch ( e ) {
+ console.log(
+ 'Failed to get the file ' + url +
+ '. Make sure that the presentation and the file
are served by a ' +
+ 'HTTP server and the file can be found there. '
+ e
+ );
+ }
+ };
+
+ function loadExternal( container, path ) {
+ var target, section, sections;
+ path = typeof path === "undefined" ? "" : path;
+ if (
+ container instanceof Element &&
+ (
+ container.getAttribute( 'data-external' ) ||
+ container.getAttribute( 'data-external-replace'
)
+ )
+ ) {
+ target = getTarget( container );
+ if ( target ) {
+ updateSection( container, target, path );
+ }
+ } else {
+ sections = container.querySelectorAll(
+ '[data-external], [data-external-replace]'
+ );
+ for ( var i = 0; i < sections.length; i += 1 ) {
+ section = sections[i];
+ target = getTarget( section );
+ if ( target ) {
+ updateSection( section, target, path );
+ }
+ }
+ }
+ }
+
+ loadExternal( document );
+})();
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