From d415e66b355c75d5d1da55f607f9c52cc5a71301 Mon Sep 17 00:00:00 2001
From: Hsieh Chin Fan <pham@topo.tw>
Date: Thu, 3 Oct 2024 08:59:20 +0800
Subject: refactor: set Suggestion as custom element

---
 src/MenuItem.mjs  | 41 ++++++++++++++++-------------------------
 src/css/index.css |  5 ++---
 src/editor.mjs    | 22 +++++++++++++---------
 3 files changed, 31 insertions(+), 37 deletions(-)

(limited to 'src')

diff --git a/src/MenuItem.mjs b/src/MenuItem.mjs
index d485032..4028702 100644
--- a/src/MenuItem.mjs
+++ b/src/MenuItem.mjs
@@ -134,41 +134,32 @@ export const addGeoLink = ({ utils }, range) =>
     }
   })
 
-export class Suggestion {
-  constructor ({ text, replace }) {
-    this.text = text
+export class Suggestion extends Item {
+  constructor ({ text, replace, cm }) {
+    super({ text })
     this.replace = replace
-  }
+    this.classList.add('suggestion')
 
-  createElement (codemirror) {
-    const option = document.createElement('div')
-    if (this.text.startsWith('<')) {
-      option.innerHTML = this.text
-    } else {
-      option.innerText = this.text
-    }
-    option.classList.add('container__suggestion')
-    option.onmouseover = () => {
-      Array.from(option.parentElement?.children)?.forEach(s =>
+    this.onmouseover = () => {
+      Array.from(this.parentElement?.children)?.forEach(s =>
         s.classList.remove('focus')
       )
-      option.classList.add('focus')
+      this.classList.add('focus')
     }
-    option.onmouseout = () => {
-      option.classList.remove('focus')
+    this.onmouseout = () => {
+      this.classList.remove('focus')
     }
-    option.onclick = () => {
-      const anchor = codemirror.getCursor()
-      codemirror.setSelection(anchor, { ...anchor, ch: 0 })
-      codemirror.replaceSelection(this.replace)
-      codemirror.focus()
+    this.onclick = () => {
+      const anchor = cm.getCursor()
+      cm.setSelection(anchor, { ...anchor, ch: 0 })
+      cm.replaceSelection(this.replace)
+      cm.focus()
       const newAnchor = { ...anchor, ch: this.replace.length }
-      codemirror.setCursor(newAnchor)
+      cm.setCursor(newAnchor)
     }
-
-    return option
   }
 }
+window.customElements.define('menu-item-suggestion', Suggestion, { extends: 'div' })
 
 export const renderResults = ({ modal, modalContent }, map) =>
   new Item({
diff --git a/src/css/index.css b/src/css/index.css
index 858182d..a2ef454 100644
--- a/src/css/index.css
+++ b/src/css/index.css
@@ -117,13 +117,12 @@ body {
   }
 }
 
-.container__suggestion {
+.suggestion {
   display: flex;
   overflow: hidden;
   justify-content: space-between;
   align-items: center;
-  height: fit-content;
-  min-height: 2rem;
+  max-width: 700px;
 
   cursor: pointer;
   white-space: nowrap;
diff --git a/src/editor.mjs b/src/editor.mjs
index 2938745..82d93b0 100644
--- a/src/editor.mjs
+++ b/src/editor.mjs
@@ -3,6 +3,7 @@
 import { markdown2HTML, generateMaps } from './dumbymap'
 import { defaultAliases, parseConfigsFromYaml } from 'mapclay'
 import * as menuItem from './MenuItem'
+import { shiftByWindow } from './utils.mjs'
 
 // Set up Containers {{{
 
@@ -382,7 +383,8 @@ const getSuggestionsForOptions = (optionTyped, validOptions) => {
     o =>
       new menuItem.Suggestion({
         text: `<span>${o.valueOf()}</span><span class='info' title="${o.desc ?? ''}">ⓘ</span>`,
-        replace: `${o.valueOf()}: `
+        replace: `${o.valueOf()}: `,
+        cm
       })
   )
 }
@@ -397,7 +399,8 @@ const getSuggestionFromMapOption = option => {
 
   return new menuItem.Suggestion({
     text,
-    replace: `${option.valueOf()}: ${option.example ?? ''}`
+    replace: `${option.valueOf()}: ${option.example ?? ''}`,
+    cm
   })
 }
 // }}}
@@ -408,7 +411,8 @@ const getSuggestionsFromAliases = option =>
     const valueString = JSON.stringify(value).replaceAll('"', '')
     return new menuItem.Suggestion({
       text: `<span>${alias}</span><span class="truncate" style="color: gray">${valueString}</span>`,
-      replace: `${option.valueOf()}: ${valueString}`
+      replace: `${option.valueOf()}: ${valueString}`,
+      cm
     })
   }) ?? []
 // }}}
@@ -523,7 +527,8 @@ const getSuggestions = anchor => {
         ([renderer, info]) =>
           new menuItem.Suggestion({
             text: `<span>use: ${renderer}</span><span class='info' title="${info.desc}">ⓘ</span>`,
-            replace: `use: ${renderer}`
+            replace: `use: ${renderer}`,
+            cm
           })
       )
     return rendererSuggestions.length > 0 ? rendererSuggestions : []
@@ -542,7 +547,6 @@ const addSuggestions = (anchor, suggestions) => {
 
   menu.innerHTML = ''
   suggestions
-    .map(s => s.createElement(cm))
     .forEach(option => menu.appendChild(option))
 
   const widgetAnchor = document.createElement('div')
@@ -550,8 +554,8 @@ const addSuggestions = (anchor, suggestions) => {
   const rect = widgetAnchor.getBoundingClientRect()
   menu.style.left = `calc(${rect.left}px + 2rem)`
   menu.style.top = `calc(${rect.bottom}px + 1rem)`
-  menu.style.maxWidth = `calc(${window.innerWidth}px - ${rect.x}px - 3rem)`
   menu.style.display = 'block'
+  shiftByWindow(menu)
 }
 // }}}
 // EVENT: Suggests for current selection {{{
@@ -583,7 +587,7 @@ cm.on('keydown', (_, e) => {
   ) { return }
 
   // Directly add a newline when no suggestion is selected
-  const currentSuggestion = menu.querySelector('.container__suggestion.focus')
+  const currentSuggestion = menu.querySelector('.menu-item.focus')
   if (!currentSuggestion && e.key === 'Enter') return
 
   // Override default behavior
@@ -592,10 +596,10 @@ cm.on('keydown', (_, e) => {
   // Suggestion when pressing Tab or Shift + Tab
   const nextSuggestion =
     currentSuggestion?.nextSibling ??
-    menu.querySelector('.container__suggestion:first-child')
+    menu.querySelector('.menu-item:first-child')
   const previousSuggestion =
     currentSuggestion?.previousSibling ??
-    menu.querySelector('.container__suggestion:last-child')
+    menu.querySelector('.menu-item:last-child')
   const focusSuggestion = e.shiftKey ? previousSuggestion : nextSuggestion
 
   // Current editor selection state
-- 
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