scrollscene
Version:
ScrollScene is an extra layer on top of ScrollMagic as well as using IntersectionObserver to achieve similar effects.
232 lines (187 loc) • 28.2 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.ScrollScene = void 0;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _scrollmagicWithSsr = _interopRequireDefault(require("./scrollmagic-with-ssr"));
var _lodash = _interopRequireDefault(require("lodash.throttle"));
var _helpers = require("./helpers");
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { (0, _defineProperty2["default"])(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
var nameSpace = 'ScrollScene';
var updateTweenProgress = function updateTweenProgress(Scene, Tween, gsapForwardSpeed, gsapReverseSpeed) {
if (Tween) {
var progress = Scene.progress();
var state = Scene.state();
if (Tween.repeat && Tween.repeat() === -1) {
if (state === 'DURING' && Tween.paused()) {
Tween.timeScale(gsapForwardSpeed).play();
} else if (state !== 'DURING' && !Tween.paused()) {
Tween.pause();
}
} else if (progress != Tween.progress()) {
if (Scene.duration() === 0) {
if (progress > 0) {
Tween.timeScale(gsapForwardSpeed).play();
} else {
Tween.timeScale(gsapReverseSpeed).reverse();
}
} else {
Tween.progress(progress).pause();
}
}
}
};
var removeTween = function removeTween(Tween) {
if (Tween) {
Tween.pause(0);
Tween.kill();
}
};
var setDuration = function setDuration(Scene, duration) {
if (duration instanceof HTMLElement) {
var previousHeight;
var currentHeight;
var getHeight = function getHeight() {
return duration.offsetHeight;
};
var update = function update() {
Scene.duration(getHeight());
previousHeight = getHeight();
};
var fn = function fn() {
currentHeight = getHeight();
if (currentHeight !== previousHeight) {
update();
}
};
fn();
window.addEventListener('resize', (0, _lodash["default"])(fn, 700));
currentHeight = getHeight();
update();
} else if ((0, _helpers.isObject)(duration)) {
var keys = Object.keys(duration).reverse();
var _fn = function _fn() {
for (var index = 0; index < keys.length; index++) {
var breakpoint = parseFloat(keys[index]);
if (breakpoint <= window.innerWidth) {
Scene.duration(duration[breakpoint]);
break;
}
}
};
_fn();
window.addEventListener('resize', (0, _lodash["default"])(_fn, 700));
} else {
Scene.duration(duration);
}
};
var setClassName = function setClassName(Scene, options, duration) {
var toggle = _objectSpread({
className: null,
element: null,
reverse: false
}, options);
if (!toggle.className) {
(0, _helpers.errorLog)(nameSpace, "Be sure to set a className in the new ".concat(nameSpace, "({ toggle: { className: \"my-class\" } })"));
}
if (!toggle.element) {
(0, _helpers.errorLog)(nameSpace, "Be sure to set a const toggleElement = (reactRef.current or document.querySelector) in the new ".concat(nameSpace, "({ toggle: { element: toggleElement } })"));
}
var addClassName = function addClassName() {
return !toggle.element.classList.contains(toggle.className) && toggle.element.classList.add(toggle.className);
};
var removeClassName = function removeClassName() {
return toggle.element.classList.contains(toggle.className) && toggle.element.classList.remove(toggle.className);
};
Scene.on('enter', function () {
addClassName();
});
Scene.on('add', function () {
if (Scene.state() === 'DURING') {
addClassName();
}
});
Scene.on('leave', function (event) {
if (!toggle.reverse && duration) {
event.scrollDirection === 'REVERSE' && removeClassName();
} else {
removeClassName();
}
});
Scene.on('remove', function () {
removeClassName();
});
};
var setTween = function setTween(Scene, options) {
var gsap = _objectSpread({
forwardSpeed: 1,
reverseSpeed: 1,
timeline: null
}, options);
if (!gsap.timeline) {
(0, _helpers.errorLog)(nameSpace, "Be sure to set a const tl = gsap.timeline({ paused: true }) in the new ".concat(nameSpace, "({ gsap: { timeline: tl } })"));
}
Scene.on('progress', function () {
updateTweenProgress(Scene, gsap.timeline, gsap.forwardSpeed, gsap.reverseSpeed);
});
Scene.on('remove', function () {
removeTween(gsap.timeline);
});
};
var globalController;
var ScrollScene = function ScrollScene(_ref) {
var breakpoints = _ref.breakpoints,
_ref$controller = _ref.controller,
controller = _ref$controller === void 0 ? {} : _ref$controller,
duration = _ref.duration,
gsap = _ref.gsap,
_ref$offset = _ref.offset,
offset = _ref$offset === void 0 ? 0 : _ref$offset,
_ref$scene = _ref.scene,
scene = _ref$scene === void 0 ? {} : _ref$scene,
toggle = _ref.toggle,
triggerElement = _ref.triggerElement,
_ref$triggerHook = _ref.triggerHook,
triggerHook = _ref$triggerHook === void 0 ? 'onEnter' : _ref$triggerHook,
_ref$useGlobalControl = _ref.useGlobalController,
useGlobalController = _ref$useGlobalControl === void 0 ? true : _ref$useGlobalControl;
var localController;
if (!useGlobalController) {
localController = new _scrollmagicWithSsr["default"].Controller(controller);
}
if (!globalController && useGlobalController) {
globalController = new _scrollmagicWithSsr["default"].Controller(controller);
}
var controllerIsUse = localController ? localController : globalController;
if (!triggerElement) {
(0, _helpers.errorLog)(nameSpace, "Be sure to set a const triggerElement = (reactRef.current or document.querySelector) in the new ".concat(nameSpace, "({ triggerElement: triggerElement })."));
}
var Scene = new _scrollmagicWithSsr["default"].Scene(_objectSpread({
triggerElement: triggerElement,
triggerHook: triggerHook,
offset: offset
}, scene));
if (duration) {
setDuration(Scene, duration);
}
if (toggle && (0, _helpers.isObject)(toggle)) {
setClassName(Scene, toggle, duration);
}
if (gsap && (0, _helpers.isObject)(gsap)) {
setTween(Scene, gsap);
}
this.init = function () {
controllerIsUse && Scene.addTo(controllerIsUse);
};
this.destroy = function () {
Scene.remove();
};
this.Scene = Scene;
this.Controller = controllerIsUse;
(0, _helpers.scrollAnimationInit)(breakpoints, this.init, this.destroy);
};
exports.ScrollScene = ScrollScene;
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ScrollMagic from './scrollmagic-with-ssr'\nimport throttle from 'lodash.throttle'\nimport { errorLog, isObject, scrollAnimationInit } from './helpers'\nimport { IScrollObserverToggle, IScrollObserverGsap } from './ScrollObserver'\n\nconst nameSpace = 'ScrollScene'\n\nconst updateTweenProgress = function(Scene, Tween, gsapForwardSpeed, gsapReverseSpeed) {\n  if (Tween) {\n    const progress = Scene.progress()\n    const state = Scene.state()\n    if (Tween.repeat && Tween.repeat() === -1) {\n      // infinite loop, so not in relation to progress\n      if (state === 'DURING' && Tween.paused()) {\n        Tween.timeScale(gsapForwardSpeed).play()\n      } else if (state !== 'DURING' && !Tween.paused()) {\n        Tween.pause()\n      }\n    } else if (progress != Tween.progress()) {\n      // do we even need to update the progress?\n      // no infinite loop - so should we just play or go to a specific point in time?\n      if (Scene.duration() === 0) {\n        // play the animation\n        if (progress > 0) {\n          // play from 0 to 1\n          Tween.timeScale(gsapForwardSpeed).play()\n        } else {\n          // play from 1 to 0\n          Tween.timeScale(gsapReverseSpeed).reverse()\n        }\n      } else {\n        // go to a specific point in time\n        // just hard set it\n        Tween.progress(progress).pause()\n      }\n    }\n  }\n}\n\nconst removeTween = function(Tween) {\n  if (Tween) {\n    Tween.pause(0)\n    Tween.kill()\n  }\n}\n\nconst setDuration = (Scene, duration) => {\n  /* check if duration is set as an HTMLElement */\n  if (duration instanceof HTMLElement) {\n    let previousHeight\n    let currentHeight\n\n    const getHeight = () => duration.offsetHeight\n\n    const update = () => {\n      Scene.duration(getHeight())\n      previousHeight = getHeight()\n    }\n\n    const fn = () => {\n      /* set duration to match height of element */\n      currentHeight = getHeight()\n\n      if (currentHeight !== previousHeight) {\n        update()\n      }\n    }\n\n    fn()\n\n    window.addEventListener('resize', throttle(fn, 700))\n\n    currentHeight = getHeight()\n\n    update()\n  } else if (isObject(duration)) {\n    /* if an object, make breakpoints */\n    const keys = Object.keys(duration).reverse()\n\n    const fn = () => {\n      for (let index = 0; index < keys.length; index++) {\n        const breakpoint = parseFloat(keys[index])\n\n        if (breakpoint <= window.innerWidth) {\n          Scene.duration(duration[breakpoint])\n          break\n        }\n      }\n    }\n\n    fn()\n\n    window.addEventListener('resize', throttle(fn, 700))\n  } else {\n    /* nothing of the above? just set it */\n    Scene.duration(duration)\n  }\n}\n\nconst setClassName = (Scene, options, duration) => {\n  const toggle = {\n    className: null,\n    element: null,\n    reverse: false,\n    ...options,\n  }\n\n  if (!toggle.className) {\n    errorLog(nameSpace, `Be sure to set a className in the new ${nameSpace}({ toggle: { className: \"my-class\" } })`)\n  }\n\n  if (!toggle.element) {\n    errorLog(\n      nameSpace,\n      `Be sure to set a const toggleElement = (reactRef.current or document.querySelector) in the new ${nameSpace}({ toggle: { element: toggleElement } })`,\n    )\n  }\n\n  const addClassName = () =>\n    !toggle.element.classList.contains(toggle.className) && toggle.element.classList.add(toggle.className)\n\n  const removeClassName = () =>\n    toggle.element.classList.contains(toggle.className) && toggle.element.classList.remove(toggle.className)\n\n  Scene.on('enter', function() {\n    addClassName()\n  })\n\n  Scene.on('add', function() {\n    if (Scene.state() === 'DURING') {\n      addClassName()\n    }\n  })\n\n  Scene.on('leave', function(event) {\n    if (!toggle.reverse && duration) {\n      // needs to be based on whether or not we have a duration\n      event.scrollDirection === 'REVERSE' && removeClassName()\n    } else {\n      removeClassName()\n    }\n  })\n\n  Scene.on('remove', function() {\n    removeClassName()\n  })\n}\n\nconst setTween = (Scene, options) => {\n  const gsap = {\n    forwardSpeed: 1,\n    reverseSpeed: 1,\n    timeline: null,\n    ...options,\n  }\n\n  if (!gsap.timeline) {\n    errorLog(\n      nameSpace,\n      `Be sure to set a const tl = gsap.timeline({ paused: true }) in the new ${nameSpace}({ gsap: { timeline: tl } })`,\n    )\n  }\n\n  Scene.on('progress', function() {\n    updateTweenProgress(Scene, gsap.timeline, gsap.forwardSpeed, gsap.reverseSpeed)\n  })\n\n  Scene.on('remove', function() {\n    removeTween(gsap.timeline)\n  })\n}\n\ninterface IScrollSceneToggle extends IScrollObserverToggle {\n  /**\n   * reverse\n   * @desc Specify the className should be removed after the duration of scene is met. Only applies if scene has duration.\n   * @type boolean\n   * @default false\n   * @example\n   * toggle: { reverse: true }\n   */\n  reverse?: boolean\n}\n\ninterface IScrollScene {\n  /**\n   * breakpoints\n   * @desc Use to set responsiveness of the new ScrollMagic.Scene, mobile-first\n   * @type object\n   * @example\n   * breakpoints: { 0: false, 768: true }\n   */\n  breakpoints?: object\n\n  /**\n   * controller\n   * @desc Extra options to pass the new ScrollMagic.Controller, like vertical, etc.\n   * @type object\n   * @example\n   * controller: { vertical: false }\n   */\n  controller?: object\n\n  /**\n   * duration\n   * @desc Use to set responsiveness of the new ScrollMagic.Scene, mobile-first (if setting breakpoints)\n   * Must be string for percentage, and number for pixel.\n   * @type object\n   * @example\n   * duration: '100%' = 100vh\n   * duration: 100 = 100px\n   * duration: { 0: '50%', 768: '100% } // = ScrollScene lasts 50vh on mobile, 100% after\n   */\n  duration?: string | number | object\n\n  /**\n   * gsap\n   * @desc Use to set options for the gsap animation of the ScrollObserver.\n   * @type object\n   * @example\n   * gsap: { timeline: myTimeline, yoyo: true, reverseSpeed: 2 }\n   */\n  gsap?: IScrollObserverGsap\n\n  /**\n   * triggerHook\n   * @desc Set the offset of the ScrollMagic scene.\n   * @type  number | string\n   * @defaultvalue 0\n   * @example\n   * offset: 100\n   * offset: '10%'\n   */\n  offset?: number | string\n\n  /**\n   * scene\n   * @desc Extra options to pass the new ScrollMagic.Scene, like logLevel, etc.\n   * @type object\n   * @example\n   * scene: { logLevel: 2 }\n   */\n  scene?: object\n\n  /**\n   * toggle\n   * @desc Use to set the options for the toggling of a className\n   * @type object\n   * @example\n   * toggle: { element: containerRef.current, className: 'lets-do-this' }\n   */\n  toggle?: IScrollSceneToggle\n\n  /**\n   * triggerElement\n   * @desc Set the element you wish to trigger events based upon, the observed element.\n   * @type  HTMLElement | any\n   * @example\n   * triggerElement: triggerRef.current\n   */\n  triggerElement: HTMLElement | any\n\n  /**\n   * triggerHook\n   * @desc Set the triggerHook of the ScrollMagic scene.\n   * @type  number\n   * @defaultvalue 'onEnter'\n   * @example\n   * triggerHook: 0.5\n   */\n  triggerHook?: number | string\n\n  /**\n   * useGlobalController\n   * @desc Chose whether or not to use the globalController provided for you, or a fresh new ScrollMagic.Controller instance.\n   * @type boolean\n   * @defaultValue true\n   * @example\n   * useGlobalController: false\n   */\n  useGlobalController?: boolean\n}\n\n// add controller var\nlet globalController\n\nconst ScrollScene = function(\n  this: any,\n  {\n    breakpoints,\n    controller = {},\n    duration,\n    gsap,\n    offset = 0,\n    scene = {},\n    toggle,\n    triggerElement,\n    triggerHook = 'onEnter',\n    useGlobalController = true,\n  }: IScrollScene,\n) {\n  let localController\n\n  // check if using a local controller\n  if (!useGlobalController) {\n    localController = new ScrollMagic.Controller(controller)\n  }\n\n  // mount controller\n  if (!globalController && useGlobalController) {\n    globalController = new ScrollMagic.Controller(controller)\n  }\n\n  const controllerIsUse = localController ? localController : globalController\n\n  if (!triggerElement) {\n    errorLog(\n      nameSpace,\n      `Be sure to set a const triggerElement = (reactRef.current or document.querySelector) in the new ${nameSpace}({ triggerElement: triggerElement }).`,\n    )\n  }\n\n  const Scene = new ScrollMagic.Scene({\n    triggerElement,\n    triggerHook,\n    offset,\n    ...scene,\n  })\n\n  if (duration) {\n    setDuration(Scene, duration)\n  }\n\n  if (toggle && isObject(toggle)) {\n    setClassName(Scene, toggle, duration)\n  }\n\n  if (gsap && isObject(gsap)) {\n    setTween(Scene, gsap)\n  }\n\n  this.init = function() {\n    controllerIsUse && Scene.addTo(controllerIsUse)\n  }\n\n  this.destroy = function() {\n    Scene.remove()\n  }\n\n  this.Scene = Scene\n  this.Controller = controllerIsUse\n\n  scrollAnimationInit(breakpoints, this.init, this.destroy)\n}\n\nexport { ScrollScene }\n"]}