Merge pull request #320 from elichad/host-fonts

Avoid importing Google fonts from URL

docs/_config.yml

@@ -92,8 +92,6 @@ theme_variables:
     github: true
     twitter: false
   theme_color: 39989F
-  fonts:
-    - https://fonts.googleapis.com/css2?family=PT+Sans:ital,wght@0,400;0,700;1,400;1,700&display=swap
 
 plugins:
   - elixir-toolkit-theme-plugins

docs/_sass/_custom_classes.scss

@@ -9,6 +9,46 @@ figcaption {
     font-size: smaller;
 }
 
+body {
+    font-family: PTSans, sans-serif;
+}
+
+@font-face {
+    font-family: PTSans;
+    src: url('/assets/fonts/PTSans-Regular.ttf') format('truetype'),
+        url('/assets/fonts/PTSans-Regular.woff') format('woff'),
+        url('/assets/fonts/PTSans-Regular.woff2') format('woff2');
+    font-display: swap;
+}
+
+@font-face {
+    font-family: PTSans;
+    src: url('/assets/fonts/PTSans-Bold.ttf') format('truetype'),
+        url('/assets/fonts/PTSans-Bold.woff') format('woff'),
+        url('/assets/fonts/PTSans-Bold.woff2') format('woff2');
+    font-weight: 700;
+    font-display: swap;
+}
+
+@font-face {
+    font-family: PTSans;
+    src: url('/assets/fonts/PTSans-Italic.ttf') format('truetype'),
+        url('/assets/fonts/PTSans-Italic.woff') format('woff'),
+        url('/assets/fonts/PTSans-Italic.woff2') format('woff2');
+    font-style: italic;
+    font-display: swap;
+}
+
+@font-face {
+    font-family: PTSans;
+    src: url('/assets/fonts/PTSans-BoldItalic.ttf') format('truetype'),
+        url('/assets/fonts/PTSans-BoldItalic.woff') format('woff'),
+        url('/assets/fonts/PTSans-BoldItalic.woff2') format('woff2');
+    font-weight: 700;
+    font-style: italic;
+    font-display: swap;
+}
+
 /*-----Sidebar-----*/
 #side-nav {
     .btn.sidebar-title {

docs/_specification/1.2-DRAFT/introduction.md

@@ -124,7 +124,7 @@ The descriptor also indicates via the `about` property which entity in the `@gra
 We can visualise how the above entity references the **RO-Crate Root** as:
 
 <figure>
-  <img src="../../assets/img/introduction-figure-1.svg" alt="JSON block with id `ro-crate-metadata.json` has some attributes, `conformsTo` RO-Crate 1.2, and `about` referencing id `./`. An arrow points from the `about` attribute to a second JSON block with id `./`, which contains additional attributes such as name and description." />
+  <img src="../../assets/img/introduction-figure-1.png" alt="JSON block with id `ro-crate-metadata.json` has some attributes, `conformsTo` RO-Crate 1.2, and `about` referencing id `./`. An arrow points from the `about` attribute to a second JSON block with id `./`, which contains additional attributes such as name and description." />
   <figcaption>Figure 2: showing RO-Crate Metadata descriptor's <code>about</code> property pointing at the RO-Crate Root entity with matching <code>@id</code></figcaption>
 </figure>
 
@@ -157,7 +157,7 @@ A main type of resources collected are _data_ -- simplifying, we can consider da
 RO-Crates can also contain data entities that are folders and Web resources, as well as non-File-like data like online databases -- see section on [data entities](data-entities).
 
 <figure id="figure2">
-<object type="image/svg+xml" data="../../assets/img/introduction-figure-2.svg">
+<object type="image/svg+xml" data="../../assets/img/introduction-figure-2.png">
 JSON block with id <code>./</code> has an array under  <code>hasPart</code> listing id <code>data.csv</code>. In second JSON block with id <code>data.csv</code> we see it is typed <code>File</code> and have other properties.
 </object>
 <figcaption>Figure 3: RO-Crate Root entity referencing the data entity with <code>@id</code> identifier <code>data.csv</code></figcaption>

docs/assets/fonts/OFL.txt

@@ -0,0 +1,94 @@
+Copyright (c) 2010, ParaType Ltd. (http://www.paratype.com/public),
+with Reserved Font Names "PT Sans" and "ParaType".
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://openfontlicense.org
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.