Add context menu allowing you to copy context path

src/app/hooks/renderHtml.ts

@@ -86,7 +86,9 @@ export const renderHtml: Hook<[any, Mounter], [string, string, string]> = {
             ${help(childPath, mounter)}
             <button class="remove" data-id="${removeId}">${Octicon.trashcan}</button>
             ${cPrefix}
-            <label>${htmlEncode(pathLocale(path.contextPush('entry'), [`${index}`]))}</label>
+            <label ${contextMenu(childPath, mounter)}>
+              ${htmlEncode(pathLocale(path.contextPush('entry'), [`${index}`]))}
+            </label>
             ${cSuffix}
           </div>
           ${cBody ? `<div class="node-body">${cBody}</div>` : ''}
@@ -125,7 +127,9 @@ export const renderHtml: Hook<[any, Mounter], [string, string, string]> = {
               ${help(childPath, mounter)}
               <button class="remove" data-id="${removeId}">${Octicon.trashcan}</button>
               ${cPrefix}
-              <label>${htmlEncode(key)}</label>
+              <label ${contextMenu(childPath, mounter)}>
+                ${htmlEncode(key)}
+              </label>
               ${cSuffix}
             </div>
             ${cBody ? `<div class="node-body">${cBody}</div>` : ''}
@@ -180,7 +184,9 @@ export const renderHtml: Hook<[any, Mounter], [string, string, string]> = {
               ${error(childPath, mounter)}
               ${help(childPath, mounter)}
               ${cPrefix}
-              <label>${htmlEncode(fieldSettings?.name ?? pathLocale(childPath))}</label>
+              <label ${contextMenu(childPath, mounter)}>
+                ${htmlEncode(fieldSettings?.name ?? pathLocale(childPath))}
+              </label>
               ${cSuffix}
             </div>
             ${cBody ? `<div class="node-body">${cBody}</div>` : ''}
@@ -259,7 +265,6 @@ function hashString(str: string) {
 }
 
 function pathLocale(path: Path, params?: string[]): string {
-  // return path.getContext().slice(-5).join('.')
   return segmentedLocale(path.getContext(), params)
     ?? path.getContext()[path.getContext().length - 1] ?? ''
 }
@@ -287,3 +292,57 @@ const popupIcon = (type: string, icon: keyof typeof Octicon, popup: string, moun
     <span class="icon-popup">${popup}</span>${Octicon[icon]}
   </div>`
 }
+
+const contextMenu = (path: ModelPath, mounter: Mounter) => {
+  const id = mounter.register(el => {
+    const openMenu = () => {
+      const popup = document.createElement('div')
+      popup.classList.add('node-menu')
+
+      const helpMessage = segmentedLocale(path.contextPush('help').getContext(), [], 6)
+      if (helpMessage) popup.insertAdjacentHTML('beforeend', `<span class="menu-item help-item">${helpMessage}</span>`)
+
+      const context = path.getContext().join('.')
+      popup.insertAdjacentHTML('beforeend', `
+        <div class="menu-item">
+          <span class="btn">${Octicon.clippy}</span>
+          Context:&nbsp
+          <span class="menu-item-context">${context}</span>
+        </div>`)
+      popup.querySelector('.menu-item .btn')?.addEventListener('click', () => {
+        const inputEl = document.createElement('input')
+        inputEl.value = context
+        el.appendChild(inputEl) 
+        inputEl.select()
+        document.execCommand('copy')
+        el.removeChild(inputEl)
+      })
+
+      el.appendChild(popup)
+      document.body.addEventListener('click', () => {
+        try {el.removeChild(popup)} catch (e) {}
+      }, { capture: true, once: true })
+      document.body.addEventListener('contextmenu', () => {
+        try {el.removeChild(popup)} catch (e) {}
+      }, { capture: true, once: true })
+    }
+    el.addEventListener('contextmenu', evt => {
+      openMenu()
+      evt.preventDefault()
+    })
+    let timer: any = null
+    el.addEventListener('touchstart', () => {
+      timer = setTimeout(() => {
+        openMenu()
+        timer = null
+      }, 800)
+    })
+    el.addEventListener('touchend', () => {
+      if (timer) {
+        clearTimeout(timer)
+        timer = null
+      }
+    })
+  })
+  return `data-id="${id}"`
+}

src/styles/nodes.css

@@ -12,6 +12,7 @@
   --node-indent-border: #b9b9b9;
   --node-popup-background: #1f2020e6;
   --node-popup-text: #dadada;
+  --node-popup-text-dimmed: #b4b4b4;
   --category-predicate: #65b5b8;
   --category-predicate-border: #187e81;
   --category-predicate-background: #95c5c7;
@@ -37,6 +38,7 @@
   --node-indent-border: #454749;
   --node-popup-background: #0a0a0ae6;
   --node-popup-text: #dadada;
+  --node-popup-text-dimmed: #b4b4b4;
   --category-predicate: #306163;
   --category-predicate-border: #224849;
   --category-predicate-background: #1d3333;
@@ -52,8 +54,9 @@
 
 .node-header {
   display: inline-flex;
+  position: relative;
   align-items: center;
-  max-width: 100%;
+  width: 100%;
 }
 
 .node-header > * {
@@ -68,6 +71,7 @@
   padding: 0 9px;
   line-height: 1.94rem;
   white-space: nowrap;
+  user-select: none;
   background-color: var(--node-background-label);
 }
 
@@ -221,6 +225,54 @@ button.remove {
   fill: var(--node-remove);
 }
 
+.node-menu {
+  position: absolute;
+  left: 0;
+  top: 100%;
+  width: min-content;
+  margin-top: 4px;
+  margin-left: 4px;
+  z-index: 1;
+  color: var(--node-popup-text);
+  font-size: 16px;
+  border-radius: 3px;
+  background-color: var(--node-popup-background);
+}
+
+.node-menu::after {
+  content: "";
+  position: absolute;
+  bottom: 100%;
+  left: 0;
+  margin-left: 6px;
+  border-width: 5px;
+  border-style: solid;
+  border-color: transparent transparent var(--node-popup-background) transparent;
+}
+
+.menu-item {
+  padding: 4px;
+  display: flex;
+  align-items: center;
+  white-space: normal;
+}
+
+.menu-item > * {
+  margin-right: 4px;
+}
+
+.menu-item .btn {
+  padding: 8px;
+}
+
+span.menu-item {
+  padding: 4px 8px;
+}
+
+.menu-item-context {
+  color: var(--node-popup-text-dimmed);
+}
+
 /* Node body and list entry */
 
 .node {