From 674bfeb0c8130c4c75078a280c11b2a66a686fbc Mon Sep 17 00:00:00 2001
From: Liam DeBeasi <liamdebeasi@users.noreply.github.com>
Date: Fri, 19 Apr 2024 09:46:44 -0400
Subject: [PATCH] add wip

---
 core/src/components/datetime/datetime.tsx     |  48 +++--
 .../components/datetime/test/basic/index.html | 166 +-----------------
 2 files changed, 41 insertions(+), 173 deletions(-)

diff --git a/core/src/components/datetime/datetime.tsx b/core/src/components/datetime/datetime.tsx
index b11e949c4f..7be01fcdb6 100644
--- a/core/src/components/datetime/datetime.tsx
+++ b/core/src/components/datetime/datetime.tsx
@@ -847,6 +847,23 @@ export class Datetime implements ComponentInterface {
     this.maxParts = parseMaxParts(max, defaultParts);
   };
 
+  private centerCalendarGrid = (workingMonth: HTMLElement) => {
+    const { el, calendarBodyRef } = this;
+
+    if (!calendarBodyRef) return;
+
+    const monthRight = workingMonth.offsetLeft + workingMonth.offsetWidth;
+    const elRight = el.offsetLeft + el.offsetWidth;
+
+    if (monthRight > elRight) {
+      calendarBodyRef.scrollLeft = workingMonth.clientWidth;
+      console.log('LTR', workingMonth)
+    } else {
+      calendarBodyRef.scrollLeft = -workingMonth.clientWidth;
+      console.log('RTL', workingMonth)
+    }
+  }
+
   private initializeCalendarListener = () => {
     const calendarBodyRef = this.calendarBodyRef;
     if (!calendarBodyRef) {
@@ -868,11 +885,11 @@ export class Datetime implements ComponentInterface {
      * the months in a row allows us to mostly sidestep
      * that issue.
      */
-    const months = calendarBodyRef.querySelectorAll('.calendar-month');
+    const months = calendarBodyRef.querySelectorAll<HTMLElement>('.calendar-month');
 
-    const startMonth = months[0] as HTMLElement;
-    const workingMonth = months[1] as HTMLElement;
-    const endMonth = months[2] as HTMLElement;
+    const startMonth = months[0];
+    const workingMonth = months[1];
+    const endMonth = months[2];
     const mode = getIonMode(this);
     const needsiOSRubberBandFix = mode === 'ios' && typeof navigator !== 'undefined' && navigator.maxTouchPoints > 1;
 
@@ -883,7 +900,7 @@ export class Datetime implements ComponentInterface {
      * if element is not in viewport. Use scrollLeft instead.
      */
     writeTask(() => {
-      calendarBodyRef.scrollLeft = startMonth.clientWidth * (isRTL(this.el) ? -1 : 1);
+      this.centerCalendarGrid(workingMonth);
 
       const getChangedMonth = (parts: DatetimeParts): DatetimeParts | undefined => {
         const box = calendarBodyRef.getBoundingClientRect();
@@ -953,6 +970,7 @@ export class Datetime implements ComponentInterface {
          * then we can return early.
          */
         const newDate = getChangedMonth(this.workingParts);
+        console.log(newDate,this.workingParts)
         if (!newDate) return;
 
         const { month, day, year } = newDate;
@@ -993,7 +1011,7 @@ export class Datetime implements ComponentInterface {
             year,
           });
 
-          calendarBodyRef.scrollLeft = workingMonth.clientWidth * (isRTL(this.el) ? -1 : 1);
+          this.centerCalendarGrid(workingMonth);
           calendarBodyRef.style.removeProperty('overflow');
 
           if (this.resolveForceDateScrolling) {
@@ -1185,7 +1203,7 @@ export class Datetime implements ComponentInterface {
      */
     const hasCalendarGrid = !preferWheel && ['date-time', 'time-date', 'date'].includes(presentation);
     if (minParts !== undefined && hasCalendarGrid && calendarBodyRef) {
-      const workingMonth = calendarBodyRef.querySelector('.calendar-month:nth-of-type(1)');
+      const workingMonth = calendarBodyRef.querySelector<HTMLElement>('.calendar-month:nth-of-type(1)');
       /**
        * We need to make sure the datetime is not in the process
        * of scrolling to a new datetime value if the value
@@ -1200,7 +1218,7 @@ export class Datetime implements ComponentInterface {
        * and the resolveForceDateScrolling promise never resolves.
        */
       if (workingMonth && forceRenderDate === undefined) {
-        calendarBodyRef.scrollLeft = workingMonth.clientWidth * (isRTL(this.el) ? -1 : 1);
+        this.centerCalendarGrid(workingMonth);
       }
     }
 
@@ -1464,16 +1482,24 @@ export class Datetime implements ComponentInterface {
       return;
     }
 
-    const nextMonth = calendarBodyRef.querySelector('.calendar-month:last-of-type');
+    const nextMonth = calendarBodyRef.querySelector<HTMLElement>('.calendar-month:last-of-type');
     if (!nextMonth) {
       return;
     }
 
-    const left = (nextMonth as HTMLElement).offsetWidth * 2;
+    const left = nextMonth.offsetWidth * 2;
+
+    if (!calendarBodyRef) return;
+
+    console.log('yay',left)
+
+    const monthRight = nextMonth.offsetLeft + nextMonth.offsetWidth;
+    const elRight = this.el.offsetLeft + this.el.offsetWidth;
+    const direction = monthRight > elRight ? 1 : -1;
 
     calendarBodyRef.scrollTo({
       top: 0,
-      left: left * (isRTL(this.el) ? -1 : 1),
+      left: left * direction,
       behavior: 'smooth',
     });
   };
diff --git a/core/src/components/datetime/test/basic/index.html b/core/src/components/datetime/test/basic/index.html
index 16056e1c3e..3a9c03644d 100644
--- a/core/src/components/datetime/test/basic/index.html
+++ b/core/src/components/datetime/test/basic/index.html
@@ -99,170 +99,12 @@
         </ion-toolbar>
       </ion-header>
       <ion-content class="ion-padding">
-        <div class="grid">
-          <div class="grid-item">
-            <h2>Inline</h2>
-            <ion-datetime value="2020-03-14T14:23:00.000Z" id="inline-datetime"></ion-datetime>
-          </div>
-
-          <div class="grid-item">
-            <h2>Inline - No Default Value</h2>
-            <ion-datetime id="inline-datetime-no-value"></ion-datetime>
-          </div>
-
-          <div class="grid-item">
-            <h2>Popover</h2>
-            <ion-button onclick="presentPopover(defaultPopover, event)">Present Popover</ion-button>
-            <ion-popover class="datetime-popover" id="default-popover">
-              <ion-datetime></ion-datetime>
-            </ion-popover>
-          </div>
-
-          <div class="grid-item">
-            <h2>Modal</h2>
-            <ion-button onclick="presentModal()">Present Modal</ion-button>
-          </div>
-
-          <div class="grid-item">
-            <h2>Inline - Custom</h2>
-            <ion-datetime show-default-buttons="true" color="danger" id="custom-datetime" show-clear-button="true">
-              <span slot="title">Select Date</span>
-            </ion-datetime>
-          </div>
-
-          <div class="grid-item">
-            <h2>Popover - Custom</h2>
-            <ion-button id="open-popover">Present Popover</ion-button>
-            <ion-popover class="datetime-popover" trigger="open-popover" id="custom-popover">
-              <ion-datetime>
-                <span slot="title">My Custom Title</span>
-                <ion-buttons slot="buttons">
-                  <ion-button color="danger">Destroy</ion-button>
-                  <ion-button color="primary">Confirm</ion-button>
-                </ion-buttons>
-              </ion-datetime>
-            </ion-popover>
-          </div>
-
-          <div class="grid-item">
-            <h2>Modal - Custom</h2>
-            <ion-button id="open-modal">Present Modal</ion-button>
-            <ion-modal trigger="open-modal" id="modal">
-              <ion-datetime>
-                <span slot="title">My Custom Title</span>
-                <ion-buttons slot="buttons">
-                  <ion-button color="danger">Destroy</ion-button>
-                  <ion-button color="primary">Confirm</ion-button>
-                </ion-buttons>
-              </ion-datetime>
-            </ion-modal>
-          </div>
-
-          <div class="grid-item">
-            <h2>formatOptions</h2>
-            <ion-datetime value="2020-03-14T14:23:00.000Z" id="format-options-datetime">
-              <span slot="title">Select Date</span>
-            </ion-datetime>
-          </div>
+        <ion-datetime></ion-datetime>
+        <ion-datetime dir="rtl"></ion-datetime>
+        <div dir="rtl">
+          <ion-datetime></ion-datetime>
         </div>
       </ion-content>
-      <script>
-        const datetimes = document.querySelectorAll('ion-datetime');
-        const color = document.querySelector('#color');
-        const locale = document.querySelector('#locale');
-        const datetime = document.querySelector('ion-datetime');
-        const buttons = document.querySelectorAll('ion-button');
-        const titleToggle = document.querySelector('#titleToggle');
-        const buttonsToggle = document.querySelector('#buttonsToggle');
-
-        locale.addEventListener('ionBlur', (ev) => {
-          const value = ev.target.value;
-          datetimes.forEach((datetime) => {
-            datetime.locale = !!value ? value : 'default';
-          });
-        });
-
-        const darkModeCheckbox = document.querySelector('ion-checkbox');
-        darkModeCheckbox.addEventListener('ionChange', (ev) => {
-          document.documentElement.classList.toggle('ion-palette-dark');
-        });
-
-        color.addEventListener('ionChange', (ev) => {
-          datetime.color = ev.target.value;
-          buttons.forEach((button) => {
-            button.color = ev.target.value;
-          });
-        });
-
-        titleToggle.addEventListener('ionChange', (ev) => {
-          datetimes.forEach((datetime) => {
-            datetime.showDefaultTitle = ev.detail.checked;
-          });
-        });
-        buttonsToggle.addEventListener('ionChange', (ev) => {
-          datetimes.forEach((datetime) => {
-            datetime.showDefaultButtons = ev.detail.checked;
-          });
-        });
-
-        datetimes.forEach((datetime) => {
-          datetime.addEventListener('ionFocus', () => {
-            console.log('Listen ionFocus: fired');
-          });
-
-          datetime.addEventListener('ionBlur', () => {
-            console.log('Listen ionBlur: fired');
-          });
-        });
-
-        const defaultPopover = document.querySelector('ion-popover#default-popover');
-        const customPopover = document.querySelector('ion-popover#custom-popover');
-        const presentPopover = (popover, ev) => {
-          popover.event = ev;
-          popover.showBackdrop = false;
-          popover.isOpen = true;
-
-          const dismiss = () => {
-            popover.isOpen = false;
-            popover.event = undefined;
-
-            popover.removeEventListener('didDismiss', dismiss);
-          };
-
-          popover.addEventListener('didDismiss', dismiss);
-        };
-
-        const presentModal = async () => {
-          const modal = await createModal();
-
-          await modal.present();
-        };
-
-        const createModal = () => {
-          // create component to open
-          const element = document.createElement('div');
-          element.innerHTML = `
-            <ion-datetime show-default-buttons="true" color="danger">
-              <span slot="title">Select Date</span>
-            </ion-datetime>
-          `;
-
-          // present the modal
-          const modalElement = Object.assign(document.createElement('ion-modal'), {
-            component: element,
-          });
-
-          const app = document.querySelector('ion-app');
-          app.appendChild(modalElement);
-          return modalElement;
-        };
-
-        const formatOptions = document.querySelector('#format-options-datetime');
-        formatOptions.formatOptions = {
-          time: { hour: '2-digit', minute: '2-digit' },
-          date: { day: '2-digit', month: 'long', era: 'short' },
-        };
-      </script>
     </ion-app>
   </body>
 </html>