Bug 29478: Flatpickr - Restore 'Today' button

It's not implemented, looks like we need to use a plugin for that

https://github.com/flatpickr/flatpickr/issues/576

https://github.com/jcsmorais/shortcut-buttons-flatpickr

Test plan:
Confirm that flatpickr instances now have a yesterday, today and
tomorrow buttons.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

koha-tmpl/intranet-tmpl/lib/flatpickr/shortcut-buttons-flatpickr.min.js

@@ -0,0 +1,2 @@
+!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.ShortcutButtonsPlugin=e():t.ShortcutButtonsPlugin=e()}(window,function(){return function(t){var e={};function n(o){if(e[o])return e[o].exports;var r=e[o]={i:o,l:!1,exports:{}};return t[o].call(r.exports,r,r.exports,n),r.l=!0,r.exports}return n.m=t,n.c=e,n.d=function(t,e,o){n.o(t,e)||Object.defineProperty(t,e,{configurable:!1,enumerable:!0,get:o})},n.r=function(t){Object.defineProperty(t,"__esModule",{value:!0})},n.n=function(t){var e=t&&t.__esModule?function(){return t.default}:function(){return t};return n.d(e,"a",e),e},n.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},n.p="",n(n.s=0)}([function(t,e,n){"use strict";Object.defineProperty(e,"__esModule",{value:!0});const o={theme:"light"};e.ShortcutButtonsPlugin=function(t){const e=Object.assign({},o,t);return t=>{let n;function o(n){n.stopPropagation(),n.preventDefault();const o=n.target;if("button"!==o.tagName.toLowerCase()||void 0===e.onClick)return;const r=parseInt(o.dataset.index,10),c=Array.isArray(e.onClick)?e.onClick:[e.onClick];for(const e of c)"function"==typeof e&&e(r,t)}return{onReady:()=>{if((n=document.createElement("div")).classList.add("shortcut-buttons-flatpickr-wrapper",e.theme),void 0!==e.label&&e.label.length){const t=document.createElement("div");t.classList.add("shortcut-buttons-flatpickr-label"),t.textContent=e.label,n.appendChild(t)}const r=document.createElement("div");r.classList.add("shortcut-buttons-flatpickr-buttons"),(Array.isArray(e.button)?e.button:[e.button]).forEach((t,e)=>{const n=document.createElement("button");n.classList.add("shortcut-buttons-flatpickr-button"),n.textContent=t.label,n.dataset.index=String(e),r.appendChild(n)}),n.appendChild(r),t.calendarContainer.appendChild(n),n.addEventListener("click",o)},onDestroy:()=>{n.removeEventListener("click",o),n=void 0}}}}}]).ShortcutButtonsPlugin});
+//# sourceMappingURL=shortcut-buttons-flatpickr.min.js.map

koha-tmpl/intranet-tmpl/prog/en/includes/calendar.inc

@@ -34,6 +34,7 @@
 <!-- / calendar.inc -->
 [% Asset.js("js/calendar.js") | $raw %]
 [% Asset.js("lib/flatpickr/flatpickr.min.js") | $raw %]
+[% Asset.js("lib/flatpickr/shortcut-buttons-flatpickr.min.js") | $raw %]
 <script>
     flatpickr.l10ns.default.weekdays = flatpickr_weekdays;
     flatpickr.l10ns.default.months   = flatpickr_months;
@@ -84,6 +85,38 @@
                 $(on_close_focus).focus();
             }
         },
+        plugins: [
+          ShortcutButtonsPlugin({
+            button: [
+              {
+                label: __("Yesterday")
+              },
+              {
+                label: __("Today")
+              },
+              {
+                label: __("Tomorrow")
+              }
+            ],
+            label: "or",
+            onClick: (index, fp) => {
+              let date;
+              switch (index) {
+                case 0:
+                  date = new Date(Date.now() - 24 * 60 * 60 * 1000);
+                  break;
+                case 1:
+                  date = new Date();
+                  break;
+                case 2:
+                  date = new Date(Date.now() + 24 * 60 * 60 * 1000);
+                  break;
+              }
+              date.setHours(23, 59, 0, 0);
+              fp.setDate(date);
+            }
+          })
+        ]
     });
     $(document).ready(function(){
         $(".flatpickr").each(function(){