WIP: Add calendar to right panel

package-lock.json

@@ -10,7 +10,7 @@
       "dependencies": {
         "express": "^4.17.2",
         "hydrogen-view-sdk": "^0.0.4",
-        "linkedom": "^0.13.2",
+        "linkedom": "^0.14.1",
         "matrix-public-archive-shared": "file:./shared/",
         "node-fetch": "^2.6.7"
       },
@@ -1255,9 +1255,9 @@
       }
     },
     "node_modules/linkedom": {
-      "version": "0.13.2",
-      "resolved": "https://registry.npmjs.org/linkedom/-/linkedom-0.13.2.tgz",
-      "integrity": "sha512-lQPdDnml1Rl/T8QW3j10jJ37LMRcZqryy5kwHDIw9AYMabeE4P6kMp2mqJXWjjeXxJ4ebJC05Qx9Xxs4jWhNMw==",
+      "version": "0.14.1",
+      "resolved": "https://registry.npmjs.org/linkedom/-/linkedom-0.14.1.tgz",
+      "integrity": "sha512-yEHdtGdIwOhQPatnBqq9URPSibrYXe3xE6sUdZraQSJmV3wTGEdkpPYM4SX9/m7t6GvUkEDeRpX7MPdUBdhs9w==",
       "dependencies": {
         "css-select": "^4.2.1",
         "cssom": "^0.5.0",
@@ -2844,9 +2844,9 @@
       }
     },
     "linkedom": {
-      "version": "0.13.2",
-      "resolved": "https://registry.npmjs.org/linkedom/-/linkedom-0.13.2.tgz",
-      "integrity": "sha512-lQPdDnml1Rl/T8QW3j10jJ37LMRcZqryy5kwHDIw9AYMabeE4P6kMp2mqJXWjjeXxJ4ebJC05Qx9Xxs4jWhNMw==",
+      "version": "0.14.1",
+      "resolved": "https://registry.npmjs.org/linkedom/-/linkedom-0.14.1.tgz",
+      "integrity": "sha512-yEHdtGdIwOhQPatnBqq9URPSibrYXe3xE6sUdZraQSJmV3wTGEdkpPYM4SX9/m7t6GvUkEDeRpX7MPdUBdhs9w==",
       "requires": {
         "css-select": "^4.2.1",
         "cssom": "^0.5.0",

package.json

@@ -12,8 +12,8 @@
   "dependencies": {
     "express": "^4.17.2",
     "hydrogen-view-sdk": "^0.0.4",
-    "linkedom": "^0.13.2",
-    "node-fetch": "^2.6.7",
-    "matrix-public-archive-shared": "file:./shared/"
+    "linkedom": "^0.14.1",
+    "matrix-public-archive-shared": "file:./shared/",
+    "node-fetch": "^2.6.7"
   }
 }

public/styles/styles.css

@@ -14,3 +14,48 @@
   min-height: 0;
   min-width: 0;
 }
+
+.CalendarView {
+  max-width: 280px;
+  font: 100% system-ui;
+}
+
+.CalendarView_heading {
+  display: flex;
+  justify-content: space-between;
+}
+
+.CalendarView_heading_prevButton,
+.CalendarView_heading_nextButton {
+  padding-left: 2em;
+  padding-right: 2em;
+
+  background: none;
+  border: 0;
+}
+
+.CalendarView_heading_prevButton:hover,
+.CalendarView_heading_nextButton:hover {
+  cursor: pointer;
+}
+
+.CalendarView_heading_text {
+}
+
+.CalendarView_calendar {
+  display: grid;
+  grid-template-columns: repeat(7, 1fr);
+
+  list-style: none;
+  margin: 0;
+  padding: 0;
+  text-align: center;
+}
+
+.CalendarView_dayName {
+  background: #eee;
+}
+
+.CalendarView_day {
+  padding: 2px;
+}

shared/CalendarView.js

@@ -0,0 +1,95 @@
+const { TemplateView } = require('hydrogen-view-sdk');
+
+// Month in JavaScript is 0-indexed (January is 0, February is 1, etc),
+// but by using 0 as the day it will give us the last day of the prior
+// month.
+//
+// via https://stackoverflow.com/a/1184359/796832
+function numDaysInMonthForDate(date) {
+  return new Date(date.getYear(), date.getMonth() + 1, 0).getDate();
+}
+
+// Map from day of week to the localized name of the day
+const DAYS_OF_WEEK = {
+  Sun: null,
+  Mon: null,
+  Tue: null,
+  Wed: null,
+  Thu: null,
+  Fri: null,
+  Sat: null,
+};
+
+// Generate the localized days of the week names
+const today = new Date();
+for (let i = 0; i < 7; i++) {
+  const lookupDate = new Date(today);
+  lookupDate.setDate(i + 1);
+
+  const lookup = lookupDate.toLocaleString('en-US', { weekday: 'short' });
+  const localized = lookupDate.toLocaleString('default', { weekday: 'short' });
+
+  DAYS_OF_WEEK[lookup] = localized;
+}
+
+class CalendarView extends TemplateView {
+  render(t, vm) {
+    const date = vm.date;
+    return t.div({ className: { CalendarView: true } }, [
+      t.div({ className: { CalendarView_heading: true } }, [
+        t.button(
+          {
+            className: { CalendarView_heading_prevButton: true },
+            onClick: () => vm.prevMonth(),
+          },
+          ['\u276E']
+        ),
+        t.h4({ className: { CalendarView_heading_text: true } }, [
+          date.toLocaleString('default', { year: 'numeric', month: 'long' }),
+        ]),
+        t.button(
+          {
+            className: { CalendarView_heading_nextButton: true },
+            onClick: () => vm.nextMonth(),
+          },
+          ['\u276F']
+        ),
+      ]),
+      t.ol(
+        { className: { CalendarView_calendar: true } },
+        [].concat(
+          Object.keys(DAYS_OF_WEEK).map((dayKey) => {
+            return t.li({ className: { CalendarView_dayName: true } }, [DAYS_OF_WEEK[dayKey]]);
+          }),
+          (() => {
+            let dayNodes = [];
+            for (let i = 0; i < numDaysInMonthForDate(date); i++) {
+              // We only need to calculate the day offset for the first day of the month
+              let dayNumber;
+              if (i === 0) {
+                const dayNumberDate = new Date(date);
+                dayNumberDate.setDate(i + 1);
+                // day number from 0 (monday) to 6 (sunday)
+                dayNumber = dayNumberDate.getDay();
+              }
+
+              dayNodes.push(
+                t.li(
+                  {
+                    className: { CalendarView_day: true },
+                    style: i === 0 ? `grid-column-start: ${dayNumber + 1};` : null,
+                  },
+                  [String(i + 1)]
+                )
+              );
+            }
+
+            return dayNodes;
+          })()
+        )
+      ),
+    ]);
+  }
+}
+
+module.exports = CalendarView;

shared/RightPanelContentView.js

@@ -1,5 +1,7 @@
 const { TemplateView } = require('hydrogen-view-sdk');
 
+const CalendarView = require('matrix-public-archive-shared/CalendarView');
+
 class RightPanelContentView extends TemplateView {
   render(t, vm) {
     return t.div(
@@ -8,7 +10,7 @@ class RightPanelContentView extends TemplateView {
           todo: true,
         },
       },
-      [t.div('test')]
+      [t.div('test'), t.view(new CalendarView(vm.calendarViewModel))]
     );
   }
 }

shared/hydrogen-vm-render-script.js

@@ -185,6 +185,20 @@ async function mountHydrogen() {
       activeViewModel: {
         type: 'custom',
         customView: RightPanelContentView,
+
+        calendarViewModel: {
+          date: new Date(),
+          prevMonth: function () {
+            const prevMonthDate = new Date(this.date);
+            prevMonthDate.setMonth(displayedDate.getMonth() - 1);
+            this.date = prevMonthDate;
+          },
+          nextMOnth: function () {
+            const nextMonthDate = new Date(this.date);
+            nextMonthDate.setMonth(displayedDate.getMonth() + 1);
+            this.date = nextMonthDate;
+          },
+        },
       },
     },
   };