keksAccountGUI/node_modulesOLD/vuetify/lib/directives/ripple/index.js

// Styles
import "../../../src/directives/ripple/VRipple.sass";
import { consoleWarn } from '../../util/console';

function transform(el, value) {
  el.style['transform'] = value;
  el.style['webkitTransform'] = value;
}

function opacity(el, value) {
  el.style['opacity'] = value.toString();
}

function isTouchEvent(e) {
  return e.constructor.name === 'TouchEvent';
}

const calculate = (e, el, value = {}) => {
  const offset = el.getBoundingClientRect();
  const target = isTouchEvent(e) ? e.touches[e.touches.length - 1] : e;
  const localX = target.clientX - offset.left;
  const localY = target.clientY - offset.top;
  let radius = 0;
  let scale = 0.3;

  if (el._ripple && el._ripple.circle) {
    scale = 0.15;
    radius = el.clientWidth / 2;
    radius = value.center ? radius : radius + Math.sqrt((localX - radius) ** 2 + (localY - radius) ** 2) / 4;
  } else {
    radius = Math.sqrt(el.clientWidth ** 2 + el.clientHeight ** 2) / 2;
  }

  const centerX = `${(el.clientWidth - radius * 2) / 2}px`;
  const centerY = `${(el.clientHeight - radius * 2) / 2}px`;
  const x = value.center ? centerX : `${localX - radius}px`;
  const y = value.center ? centerY : `${localY - radius}px`;
  return {
    radius,
    scale,
    x,
    y,
    centerX,
    centerY
  };
};

const ripples = {
  /* eslint-disable max-statements */
  show(e, el, value = {}) {
    if (!el._ripple || !el._ripple.enabled) {
      return;
    }

    const container = document.createElement('span');
    const animation = document.createElement('span');
    container.appendChild(animation);
    container.className = 'v-ripple__container';

    if (value.class) {
      container.className += ` ${value.class}`;
    }

    const {
      radius,
      scale,
      x,
      y,
      centerX,
      centerY
    } = calculate(e, el, value);
    const size = `${radius * 2}px`;
    animation.className = 'v-ripple__animation';
    animation.style.width = size;
    animation.style.height = size;
    el.appendChild(container);
    const computed = window.getComputedStyle(el);

    if (computed && computed.position === 'static') {
      el.style.position = 'relative';
      el.dataset.previousPosition = 'static';
    }

    animation.classList.add('v-ripple__animation--enter');
    animation.classList.add('v-ripple__animation--visible');
    transform(animation, `translate(${x}, ${y}) scale3d(${scale},${scale},${scale})`);
    opacity(animation, 0);
    animation.dataset.activated = String(performance.now());
    setTimeout(() => {
      animation.classList.remove('v-ripple__animation--enter');
      animation.classList.add('v-ripple__animation--in');
      transform(animation, `translate(${centerX}, ${centerY}) scale3d(1,1,1)`);
      opacity(animation, 0.25);
    }, 0);
  },

  hide(el) {
    if (!el || !el._ripple || !el._ripple.enabled) return;
    const ripples = el.getElementsByClassName('v-ripple__animation');
    if (ripples.length === 0) return;
    const animation = ripples[ripples.length - 1];
    if (animation.dataset.isHiding) return;else animation.dataset.isHiding = 'true';
    const diff = performance.now() - Number(animation.dataset.activated);
    const delay = Math.max(250 - diff, 0);
    setTimeout(() => {
      animation.classList.remove('v-ripple__animation--in');
      animation.classList.add('v-ripple__animation--out');
      opacity(animation, 0);
      setTimeout(() => {
        const ripples = el.getElementsByClassName('v-ripple__animation');

        if (ripples.length === 1 && el.dataset.previousPosition) {
          el.style.position = el.dataset.previousPosition;
          delete el.dataset.previousPosition;
        }

        animation.parentNode && el.removeChild(animation.parentNode);
      }, 300);
    }, delay);
  }

};

function isRippleEnabled(value) {
  return typeof value === 'undefined' || !!value;
}

function rippleShow(e) {
  const value = {};
  const element = e.currentTarget;
  if (!element || !element._ripple || element._ripple.touched) return;

  if (isTouchEvent(e)) {
    element._ripple.touched = true;
    element._ripple.isTouch = true;
  } else {
    // It's possible for touch events to fire
    // as mouse events on Android/iOS, this
    // will skip the event call if it has
    // already been registered as touch
    if (element._ripple.isTouch) return;
  }

  value.center = element._ripple.centered;

  if (element._ripple.class) {
    value.class = element._ripple.class;
  }

  ripples.show(e, element, value);
}

function rippleHide(e) {
  const element = e.currentTarget;
  if (!element) return;
  window.setTimeout(() => {
    if (element._ripple) {
      element._ripple.touched = false;
    }
  });
  ripples.hide(element);
}

function updateRipple(el, binding, wasEnabled) {
  const enabled = isRippleEnabled(binding.value);

  if (!enabled) {
    ripples.hide(el);
  }

  el._ripple = el._ripple || {};
  el._ripple.enabled = enabled;
  const value = binding.value || {};

  if (value.center) {
    el._ripple.centered = true;
  }

  if (value.class) {
    el._ripple.class = binding.value.class;
  }

  if (value.circle) {
    el._ripple.circle = value.circle;
  }

  if (enabled && !wasEnabled) {
    el.addEventListener('touchstart', rippleShow, {
      passive: true
    });
    el.addEventListener('touchend', rippleHide, {
      passive: true
    });
    el.addEventListener('touchcancel', rippleHide);
    el.addEventListener('mousedown', rippleShow);
    el.addEventListener('mouseup', rippleHide);
    el.addEventListener('mouseleave', rippleHide); // Anchor tags can be dragged, causes other hides to fail - #1537

    el.addEventListener('dragstart', rippleHide, {
      passive: true
    });
  } else if (!enabled && wasEnabled) {
    removeListeners(el);
  }
}

function removeListeners(el) {
  el.removeEventListener('mousedown', rippleShow);
  el.removeEventListener('touchstart', rippleHide);
  el.removeEventListener('touchend', rippleHide);
  el.removeEventListener('touchcancel', rippleHide);
  el.removeEventListener('mouseup', rippleHide);
  el.removeEventListener('mouseleave', rippleHide);
  el.removeEventListener('dragstart', rippleHide);
}

function directive(el, binding, node) {
  updateRipple(el, binding, false);

  if (process.env.NODE_ENV === 'development') {
    // warn if an inline element is used, waiting for el to be in the DOM first
    node.context && node.context.$nextTick(() => {
      const computed = window.getComputedStyle(el);

      if (computed && computed.display === 'inline') {
        const context = node.fnOptions ? [node.fnOptions, node.context] : [node.componentInstance];
        consoleWarn('v-ripple can only be used on block-level elements', ...context);
      }
    });
  }
}

function unbind(el) {
  delete el._ripple;
  removeListeners(el);
}

function update(el, binding) {
  if (binding.value === binding.oldValue) {
    return;
  }

  const wasEnabled = isRippleEnabled(binding.oldValue);
  updateRipple(el, binding, wasEnabled);
}

export const Ripple = {
  bind: directive,
  unbind,
  update
};
export default Ripple;
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