{
  "id": "3d-camera-control",
  "name": "3D Camera Control",
  "description": "An interactive 3D camera orbit controller for image viewing. Features a d-pad for azimuth/elevation control and zoom buttons. Displays real-time camera coordinates (azimuth, elevation, distance). HUD controls appear on hover.",
  "author": "ysharma",
  "tags": [
    "display",
    "3d",
    "camera",
    "orbit",
    "viewer",
    "image"
  ],
  "html_template": "\n<div class=\"cv-wrap\">\n  {{#if value.img}}\n    <img class=\"cv-img\" src=\"{{value.img}}\">\n  {{else}}\n    <div class=\"cv-empty cv-dropzone\" data-action=\"upload\">\n      <svg class=\"cv-empty-icon\" xmlns=\"http://www.w3.org/2000/svg\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"1.25\">\n        <path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M3 16.5v2.25A2.25 2.25 0 005.25 21h13.5A2.25 2.25 0 0021 18.75V16.5m-13.5-9L12 3m0 0l4.5 4.5M12 3v13.5\" />\n      </svg>\n      <p class=\"cv-empty-title\">Drop an image here</p>\n      <p class=\"cv-empty-sub\">or click to browse</p>\n      <input type=\"file\" class=\"cv-file-input\" accept=\"image/*\" />\n    </div>\n  {{/if}}\n  <div class=\"cv-hud\">\n    <div class=\"cv-readout\">\n      <span class=\"cv-lbl\">Az</span><span class=\"cv-val\">${value.az}&deg;</span>\n      <span class=\"cv-sep\">/</span>\n      <span class=\"cv-lbl\">El</span><span class=\"cv-val\">${value.el}&deg;</span>\n      <span class=\"cv-sep\">/</span>\n      <span class=\"cv-lbl\">Dist</span><span class=\"cv-val\">${value.dist}&times;</span>\n    </div>\n    <div class=\"cv-controls\">\n      <div class=\"cv-dpad\">\n        <button class=\"cv-btn cv-up\"    data-action=\"el-plus\"  title=\"Elevate\">&#9650;</button>\n        <button class=\"cv-btn cv-left\"  data-action=\"az-minus\" title=\"Rotate Left\">&#9664;</button>\n        <div class=\"cv-dot\"></div>\n        <button class=\"cv-btn cv-right\" data-action=\"az-plus\"  title=\"Rotate Right\">&#9654;</button>\n        <button class=\"cv-btn cv-down\"  data-action=\"el-minus\" title=\"Lower\">&#9660;</button>\n      </div>\n      <div class=\"cv-zoom\">\n        <button class=\"cv-zbtn\" data-action=\"dist-minus\" title=\"Zoom In\">+</button>\n        <button class=\"cv-zbtn\" data-action=\"dist-plus\"  title=\"Zoom Out\">&minus;</button>\n      </div>\n    </div>\n  </div>\n</div>\n",
  "css_template": "\n*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }\n/* \u2500\u2500 Image well \u2500\u2500 dark neutral so images pop, same treatment as any\n   professional image editor / camera app preview area. Not a stylistic\n   choice but a functional one: images render best against dark. */\n.cv-wrap {\n  position: relative;\n  width: 100%; height: 500px;\n  background: #1c1c1e;\n  border-radius: 12px;\n  overflow: hidden;\n  display: flex; align-items: center; justify-content: center;\n}\n.cv-img {\n  max-width: 100%; max-height: 100%;\n  object-fit: contain; display: block;\n}\n/* empty state */\n.cv-empty {\n  text-align: center; user-select: none;\n  display: flex; flex-direction: column; align-items: center; gap: 14px;\n}\n.cv-empty-icon {\n  width: 52px; height: 52px;\n  color: rgba(255,255,255,0.2);\n}\n.cv-empty-title {\n  font-size: 15px; font-weight: 500; letter-spacing: -0.01em;\n  color: rgba(255,255,255,0.45);\n}\n.cv-empty-sub {\n  font-size: 13px; max-width: 230px; line-height: 1.65;\n  color: rgba(255,255,255,0.25);\n}\n/* dropzone */\n.cv-dropzone {\n  cursor: pointer;\n  border: 2px dashed rgba(255,255,255,0.15);\n  border-radius: 12px;\n  padding: 40px 24px;\n  transition: border-color 0.2s, background 0.2s;\n}\n.cv-dropzone:hover, .cv-dropzone.cv-drag-over {\n  border-color: #f97316;\n  background: rgba(249,115,22,0.06);\n}\n.cv-dropzone.cv-drag-over .cv-empty-icon {\n  color: #f97316;\n}\n.cv-file-input {\n  position: absolute;\n  width: 0; height: 0;\n  opacity: 0; pointer-events: none;\n}\n/* HUD \u2014 fades in on hover via CSS, no JS needed */\n.cv-hud {\n  position: absolute; bottom: 16px; right: 16px;\n  display: flex; flex-direction: column; align-items: flex-end; gap: 8px;\n  opacity: 0; transition: opacity 0.16s ease; pointer-events: auto;\n}\n.cv-wrap:hover .cv-hud { opacity: 1; }\n/* coordinate readout \u2014 white card floating over image */\n.cv-readout {\n  display: flex; align-items: center; gap: 8px;\n  background: rgba(255,255,255,0.96);\n  border-radius: 7px; padding: 5px 13px;\n  font-size: 12px; white-space: nowrap;\n  box-shadow: 0 2px 12px rgba(0,0,0,0.25);\n}\n.cv-lbl { color: #9ca3af; font-size: 10px; text-transform: uppercase; letter-spacing: 0.04em; }\n.cv-val { color: #111827; font-weight: 600; font-variant-numeric: tabular-nums; }\n.cv-sep { color: #d1d5db; margin: 0 2px; }\n/* controls panel \u2014 white card, same treatment as readout */\n.cv-controls {\n  display: flex; align-items: center; gap: 8px;\n  background: rgba(255,255,255,0.96);\n  border-radius: 10px; padding: 8px 10px;\n  box-shadow: 0 2px 12px rgba(0,0,0,0.25);\n}\n/* d-pad */\n.cv-dpad {\n  display: grid;\n  grid-template-columns: repeat(3, 32px);\n  grid-template-rows: repeat(3, 32px);\n  gap: 3px;\n}\n.cv-btn {\n  width: 32px; height: 32px;\n  border: 1px solid #e5e7eb; border-radius: 6px;\n  background: #ffffff; color: #6b7280;\n  font-size: 10px; cursor: pointer;\n  display: flex; align-items: center; justify-content: center;\n  transition: background 0.1s, border-color 0.1s, color 0.1s, transform 0.08s;\n  padding: 0; line-height: 1;\n}\n/* orange matches Gradio Default theme primary */\n.cv-btn:hover {\n  background: #fff7ed; border-color: #f97316; color: #f97316;\n  transform: scale(1.1);\n}\n.cv-btn:active { transform: scale(0.92); background: #ffedd5; }\n.cv-up    { grid-column:2; grid-row:1; }\n.cv-left  { grid-column:1; grid-row:2; }\n.cv-dot   {\n  grid-column:2; grid-row:2;\n  width:32px; height:32px; border-radius:50%;\n  background: #f9fafb; border: 1px solid #e5e7eb;\n}\n.cv-right { grid-column:3; grid-row:2; }\n.cv-down  { grid-column:2; grid-row:3; }\n/* zoom column */\n.cv-zoom { display: flex; flex-direction: column; gap: 3px; }\n.cv-zbtn {\n  width: 32px; height: 38px;\n  border: 1px solid #e5e7eb; border-radius: 6px;\n  background: #ffffff; color: #6b7280;\n  font-size: 16px; font-weight: 400; cursor: pointer;\n  display: flex; align-items: center; justify-content: center;\n  transition: background 0.1s, border-color 0.1s, color 0.1s, transform 0.08s;\n  padding: 0; line-height: 1;\n}\n.cv-zbtn:hover {\n  background: #fff7ed; border-color: #f97316; color: #f97316;\n  transform: scale(1.1);\n}\n.cv-zbtn:active { transform: scale(0.92); background: #ffedd5; }\n",
  "js_on_load": "\nconst DIST_STEPS = [0.6, 1.0, 1.8];\nfunction snapDist(d) {\n  return DIST_STEPS.reduce((p, c) => Math.abs(c - d) < Math.abs(p - d) ? c : p);\n}\nfunction shiftDist(d, dir) {\n  const idx = DIST_STEPS.indexOf(snapDist(Number(d)));\n  return DIST_STEPS[Math.max(0, Math.min(DIST_STEPS.length - 1, idx + dir))];\n}\n// --- Image upload (drag-drop + click-to-browse) ---\nfunction loadImageFile(file) {\n  if (!file || !file.type.startsWith('image/')) return;\n  const reader = new FileReader();\n  reader.onload = function(e) {\n    const v = Object.assign({}, props.value);\n    props.value = { ...v, img: e.target.result };\n  };\n  reader.readAsDataURL(file);\n}\nelement.addEventListener('dragover', function(e) {\n  e.preventDefault();\n  const dz = element.querySelector('.cv-dropzone');\n  if (dz) dz.classList.add('cv-drag-over');\n});\nelement.addEventListener('dragleave', function(e) {\n  const dz = element.querySelector('.cv-dropzone');\n  if (dz) dz.classList.remove('cv-drag-over');\n});\nelement.addEventListener('drop', function(e) {\n  e.preventDefault();\n  const dz = element.querySelector('.cv-dropzone');\n  if (dz) dz.classList.remove('cv-drag-over');\n  if (e.dataTransfer && e.dataTransfer.files.length) {\n    loadImageFile(e.dataTransfer.files[0]);\n  }\n});\nelement.addEventListener('change', function(e) {\n  if (e.target.classList.contains('cv-file-input')) {\n    loadImageFile(e.target.files[0]);\n  }\n});\n// Delegated click listener \u2014 attached once, survives template re-renders.\nelement.addEventListener('click', function(e) {\n  // Handle dropzone click -> open file picker\n  const dz = e.target.closest('[data-action=\"upload\"]');\n  if (dz) {\n    const fi = element.querySelector('.cv-file-input');\n    if (fi) fi.click();\n    return;\n  }\n  const btn = e.target.closest('[data-action]');\n  if (!btn) return;\n  const v    = Object.assign({}, props.value);\n  let az   = Number(v.az)   || 0;\n  let el   = Number(v.el)   || 0;\n  let dist = Number(v.dist) || 1.0;\n  switch (btn.dataset.action) {\n    case 'az-minus':   az   = (az - 45 + 360) % 360;  break;\n    case 'az-plus':    az   = (az + 45) % 360;         break;\n    case 'el-plus':    el   = Math.min(60,  el + 30);  break;\n    case 'el-minus':   el   = Math.max(-30, el - 30);  break;\n    case 'dist-minus': dist = shiftDist(dist, -1);     break;\n    case 'dist-plus':  dist = shiftDist(dist, +1);     break;\n  }\n  props.value = { ...v, az, el, dist };\n  trigger('submit');\n});\n",
  "default_props": {
    "value": {
      "img": "",
      "az": 0.0,
      "el": 0.0,
      "dist": 1.0
    }
  },
  "python_code": "gr.HTML(\n    value={'img': '', 'az': 0.0, 'el': 0.0, 'dist': 1.0},\n    html_template=\"\"\"\n\n<div class=\"cv-wrap\">\n  {{#if value.img}}\n    <img class=\"cv-img\" src=\"{{value.img}}\">\n  {{else}}\n    <div class=\"cv-empty cv-dropzone\" data-action=\"upload\">\n      <svg class=\"cv-empty-icon\" xmlns=\"http://www.w3.org/2000/svg\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"1.25\">\n        <path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M3 16.5v2.25A2.25 2.25 0 005.25 21h13.5A2.25 2.25 0 0021 18.75V16.5m-13.5-9L12 3m0 0l4.5 4.5M12 3v13.5\" />\n      </svg>\n      <p class=\"cv-empty-title\">Drop an image here</p>\n      <p class=\"cv-empty-sub\">or click to browse</p>\n      <input type=\"file\" class=\"cv-file-input\" accept=\"image/*\" />\n    </div>\n  {{/if}}\n  <div class=\"cv-hud\">\n    <div class=\"cv-readout\">\n      <span class=\"cv-lbl\">Az</span><span class=\"cv-val\">${value.az}&deg;</span>\n      <span class=\"cv-sep\">/</span>\n      <span class=\"cv-lbl\">El</span><span class=\"cv-val\">${value.el}&deg;</span>\n      <span class=\"cv-sep\">/</span>\n      <span class=\"cv-lbl\">Dist</span><span class=\"cv-val\">${value.dist}&times;</span>\n    </div>\n    <div class=\"cv-controls\">\n      <div class=\"cv-dpad\">\n        <button class=\"cv-btn cv-up\"    data-action=\"el-plus\"  title=\"Elevate\">&#9650;</button>\n        <button class=\"cv-btn cv-left\"  data-action=\"az-minus\" title=\"Rotate Left\">&#9664;</button>\n        <div class=\"cv-dot\"></div>\n        <button class=\"cv-btn cv-right\" data-action=\"az-plus\"  title=\"Rotate Right\">&#9654;</button>\n        <button class=\"cv-btn cv-down\"  data-action=\"el-minus\" title=\"Lower\">&#9660;</button>\n      </div>\n      <div class=\"cv-zoom\">\n        <button class=\"cv-zbtn\" data-action=\"dist-minus\" title=\"Zoom In\">+</button>\n        <button class=\"cv-zbtn\" data-action=\"dist-plus\"  title=\"Zoom Out\">&minus;</button>\n      </div>\n    </div>\n  </div>\n</div>\n\n    \"\"\",\n    css_template=\"\"\"\n\n*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }\n/* \u2500\u2500 Image well \u2500\u2500 dark neutral so images pop, same treatment as any\n   professional image editor / camera app preview area. Not a stylistic\n   choice but a functional one: images render best against dark. */\n.cv-wrap {\n  position: relative;\n  width: 100%; height: 500px;\n  background: #1c1c1e;\n  border-radius: 12px;\n  overflow: hidden;\n  display: flex; align-items: center; justify-content: center;\n}\n.cv-img {\n  max-width: 100%; max-height: 100%;\n  object-fit: contain; display: block;\n}\n/* empty state */\n.cv-empty {\n  text-align: center; user-select: none;\n  display: flex; flex-direction: column; align-items: center; gap: 14px;\n}\n.cv-empty-icon {\n  width: 52px; height: 52px;\n  color: rgba(255,255,255,0.2);\n}\n.cv-empty-title {\n  font-size: 15px; font-weight: 500; letter-spacing: -0.01em;\n  color: rgba(255,255,255,0.45);\n}\n.cv-empty-sub {\n  font-size: 13px; max-width: 230px; line-height: 1.65;\n  color: rgba(255,255,255,0.25);\n}\n/* dropzone */\n.cv-dropzone {\n  cursor: pointer;\n  border: 2px dashed rgba(255,255,255,0.15);\n  border-radius: 12px;\n  padding: 40px 24px;\n  transition: border-color 0.2s, background 0.2s;\n}\n.cv-dropzone:hover, .cv-dropzone.cv-drag-over {\n  border-color: #f97316;\n  background: rgba(249,115,22,0.06);\n}\n.cv-dropzone.cv-drag-over .cv-empty-icon {\n  color: #f97316;\n}\n.cv-file-input {\n  position: absolute;\n  width: 0; height: 0;\n  opacity: 0; pointer-events: none;\n}\n/* HUD \u2014 fades in on hover via CSS, no JS needed */\n.cv-hud {\n  position: absolute; bottom: 16px; right: 16px;\n  display: flex; flex-direction: column; align-items: flex-end; gap: 8px;\n  opacity: 0; transition: opacity 0.16s ease; pointer-events: auto;\n}\n.cv-wrap:hover .cv-hud { opacity: 1; }\n/* coordinate readout \u2014 white card floating over image */\n.cv-readout {\n  display: flex; align-items: center; gap: 8px;\n  background: rgba(255,255,255,0.96);\n  border-radius: 7px; padding: 5px 13px;\n  font-size: 12px; white-space: nowrap;\n  box-shadow: 0 2px 12px rgba(0,0,0,0.25);\n}\n.cv-lbl { color: #9ca3af; font-size: 10px; text-transform: uppercase; letter-spacing: 0.04em; }\n.cv-val { color: #111827; font-weight: 600; font-variant-numeric: tabular-nums; }\n.cv-sep { color: #d1d5db; margin: 0 2px; }\n/* controls panel \u2014 white card, same treatment as readout */\n.cv-controls {\n  display: flex; align-items: center; gap: 8px;\n  background: rgba(255,255,255,0.96);\n  border-radius: 10px; padding: 8px 10px;\n  box-shadow: 0 2px 12px rgba(0,0,0,0.25);\n}\n/* d-pad */\n.cv-dpad {\n  display: grid;\n  grid-template-columns: repeat(3, 32px);\n  grid-template-rows: repeat(3, 32px);\n  gap: 3px;\n}\n.cv-btn {\n  width: 32px; height: 32px;\n  border: 1px solid #e5e7eb; border-radius: 6px;\n  background: #ffffff; color: #6b7280;\n  font-size: 10px; cursor: pointer;\n  display: flex; align-items: center; justify-content: center;\n  transition: background 0.1s, border-color 0.1s, color 0.1s, transform 0.08s;\n  padding: 0; line-height: 1;\n}\n/* orange matches Gradio Default theme primary */\n.cv-btn:hover {\n  background: #fff7ed; border-color: #f97316; color: #f97316;\n  transform: scale(1.1);\n}\n.cv-btn:active { transform: scale(0.92); background: #ffedd5; }\n.cv-up    { grid-column:2; grid-row:1; }\n.cv-left  { grid-column:1; grid-row:2; }\n.cv-dot   {\n  grid-column:2; grid-row:2;\n  width:32px; height:32px; border-radius:50%;\n  background: #f9fafb; border: 1px solid #e5e7eb;\n}\n.cv-right { grid-column:3; grid-row:2; }\n.cv-down  { grid-column:2; grid-row:3; }\n/* zoom column */\n.cv-zoom { display: flex; flex-direction: column; gap: 3px; }\n.cv-zbtn {\n  width: 32px; height: 38px;\n  border: 1px solid #e5e7eb; border-radius: 6px;\n  background: #ffffff; color: #6b7280;\n  font-size: 16px; font-weight: 400; cursor: pointer;\n  display: flex; align-items: center; justify-content: center;\n  transition: background 0.1s, border-color 0.1s, color 0.1s, transform 0.08s;\n  padding: 0; line-height: 1;\n}\n.cv-zbtn:hover {\n  background: #fff7ed; border-color: #f97316; color: #f97316;\n  transform: scale(1.1);\n}\n.cv-zbtn:active { transform: scale(0.92); background: #ffedd5; }\n\n    \"\"\",\n    js_on_load=\"\"\"\n\nconst DIST_STEPS = [0.6, 1.0, 1.8];\nfunction snapDist(d) {\n  return DIST_STEPS.reduce((p, c) => Math.abs(c - d) < Math.abs(p - d) ? c : p);\n}\nfunction shiftDist(d, dir) {\n  const idx = DIST_STEPS.indexOf(snapDist(Number(d)));\n  return DIST_STEPS[Math.max(0, Math.min(DIST_STEPS.length - 1, idx + dir))];\n}\n// --- Image upload (drag-drop + click-to-browse) ---\nfunction loadImageFile(file) {\n  if (!file || !file.type.startsWith('image/')) return;\n  const reader = new FileReader();\n  reader.onload = function(e) {\n    const v = Object.assign({}, props.value);\n    props.value = { ...v, img: e.target.result };\n  };\n  reader.readAsDataURL(file);\n}\nelement.addEventListener('dragover', function(e) {\n  e.preventDefault();\n  const dz = element.querySelector('.cv-dropzone');\n  if (dz) dz.classList.add('cv-drag-over');\n});\nelement.addEventListener('dragleave', function(e) {\n  const dz = element.querySelector('.cv-dropzone');\n  if (dz) dz.classList.remove('cv-drag-over');\n});\nelement.addEventListener('drop', function(e) {\n  e.preventDefault();\n  const dz = element.querySelector('.cv-dropzone');\n  if (dz) dz.classList.remove('cv-drag-over');\n  if (e.dataTransfer && e.dataTransfer.files.length) {\n    loadImageFile(e.dataTransfer.files[0]);\n  }\n});\nelement.addEventListener('change', function(e) {\n  if (e.target.classList.contains('cv-file-input')) {\n    loadImageFile(e.target.files[0]);\n  }\n});\n// Delegated click listener \u2014 attached once, survives template re-renders.\nelement.addEventListener('click', function(e) {\n  // Handle dropzone click -> open file picker\n  const dz = e.target.closest('[data-action=\"upload\"]');\n  if (dz) {\n    const fi = element.querySelector('.cv-file-input');\n    if (fi) fi.click();\n    return;\n  }\n  const btn = e.target.closest('[data-action]');\n  if (!btn) return;\n  const v    = Object.assign({}, props.value);\n  let az   = Number(v.az)   || 0;\n  let el   = Number(v.el)   || 0;\n  let dist = Number(v.dist) || 1.0;\n  switch (btn.dataset.action) {\n    case 'az-minus':   az   = (az - 45 + 360) % 360;  break;\n    case 'az-plus':    az   = (az + 45) % 360;         break;\n    case 'el-plus':    el   = Math.min(60,  el + 30);  break;\n    case 'el-minus':   el   = Math.max(-30, el - 30);  break;\n    case 'dist-minus': dist = shiftDist(dist, -1);     break;\n    case 'dist-plus':  dist = shiftDist(dist, +1);     break;\n  }\n  props.value = { ...v, az, el, dist };\n  trigger('submit');\n});\n\n    \"\"\",\n)",
  "head": "",
  "repo_url": "https://github.com/yvrjsharma/html-custom-components"
}