[Docs] Added custom style to the main doc page.

Component lists are now displayed in a grid format, each accompained by
an icon.

docs/source/_static/scripts/custom.js

@@ -0,0 +1,48 @@
+document.addEventListener("DOMContentLoaded", function() {
+  const processList = (list, level, addTitle) => {
+    const title = list.parentElement.querySelector('a')
+    list.classList.add('grid')
+    if (addTitle)
+      title.classList.add('grid-title')
+
+    list.querySelectorAll(`li.toctree-l${level}`).forEach((item) => {
+      const link = item.querySelector('a')
+      if (link) {
+        item.style.cursor = 'pointer'
+        item.addEventListener('click', () => link.click())
+      }
+
+      const name = item.querySelector('a').innerText
+      const img = document.createElement('img')
+      img.src = `https://static.platypush.tech/icons/${name.toLowerCase()}-64.png`
+      img.alt = ' '
+      item.prepend(img)
+    })
+  }
+
+  const tocWrappers = document.querySelectorAll('.toctree-wrapper.compound')
+
+  if (!tocWrappers.length) {
+    return
+  }
+
+  if (window.location.pathname.endsWith('/index.html')) {
+    if (tocWrappers.length < 2) {
+      return
+    }
+
+    const referenceLists = [
+      ...tocWrappers[1].querySelectorAll('ul li.toctree-l1 ul')
+    ].slice(0, 4)
+
+    referenceLists.forEach((list) => processList(list, 2, true))
+  } else if (window.location.pathname.endsWith('/plugins.html') || window.location.pathname.endsWith('/backends.html')) {
+    if (tocWrappers.length < 1) {
+      return
+    }
+
+    const list = tocWrappers[0].querySelector('ul')
+    if (list)
+      processList(list, 1, false)
+  }
+})

docs/source/_static/styles/custom.css

@@ -0,0 +1,71 @@
+a, a:visited {
+  /* Don't change the color for visited links */
+  color: var(--pst-color-link) !important;
+}
+
+ul.grid {
+  display: grid;
+
+  @media screen and (max-width: 500px) {
+    grid-template-columns: repeat(1, 1fr);
+  }
+
+  @media screen and (min-width: 501px) and (max-width: 699px) {
+    grid-template-columns: repeat(2, 1fr);
+  }
+
+  @media screen and (min-width: 700px) {
+    grid-template-columns: repeat(3, 1fr);
+  }
+}
+
+a.grid-title {
+  width: 100%;
+  display: block;
+  margin: 1.5em 0;
+  font-size: 1.5em !important;
+  border-bottom: 1px solid #ccc;
+}
+
+ul.grid li {
+  display: flex;
+  align-items: center;
+  margin: 0 10px 10px 0;
+  padding: 10px;
+  border: 1px solid #ccc;
+  border-radius: 15px;
+}
+
+ul.grid img {
+  width: 32px;
+  margin-right: 5px;
+}
+
+ul.grid li code {
+  width: 100%;
+}
+
+ul.grid li code .pre {
+  width: 100%;
+  display: block;
+  white-space: pre-wrap;
+}
+
+ul.grid li:hover {
+  background: linear-gradient(0deg, #e0ffe8, #e3ffff);
+}
+
+ul.grid li a {
+  width: calc(100% - 35px);
+  display: flex;
+  justify-content: center;
+}
+
+ul.grid li a code {
+  background: none;
+  border: none;
+}
+
+ul.grid .icon {
+  width: 32px;
+}

docs/source/conf.py

@@ -112,7 +112,14 @@ html_theme_options = {
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-# html_static_path = ['_static']
+html_static_path = ['_static']
+html_css_files = [
+    'styles/custom.css',
+]
+
+html_js_files = [
+    'scripts/custom.js',
+]
 
 # Custom sidebar templates, must be a dictionary that maps document names
 # to template names.