@material/ripple - npm Package Compare versions

Comparing version 0.8.1 to 0.8.2

dist/mdc.ripple.js

@@ -534,3 +534,12 @@ /*!
 
-/** @private {boolean|undefined} */
+/**
+ * Stores result from supportsCssVariables to avoid redundant processing to detect CSS custom variable support.
+ * @private {boolean|undefined}
+ */
+var supportsCssVariables_ = void 0;
+
+/**
+ * Stores result from applyPassive to avoid redundant processing to detect passive event listener support.
+ * @private {boolean|undefined}
+ */
 var supportsPassive_ = void 0;
@@ -540,5 +549,38 @@
  * @param {!Window} windowObj
+ * @return {boolean}
+ */
+function detectEdgePseudoVarBug(windowObj) {
+  // Detect versions of Edge with buggy var() support
+  // See: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/11495448/
+  var document = windowObj.document;
+  var className = 'test-edge-css-var';
+  var styleNode = document.createElement('style');
+  document.head.appendChild(styleNode);
+  var sheet = styleNode.sheet;
+  // Internet Explorer 11 requires indices to always be specified to insertRule
+  sheet.insertRule(':root { --' + className + ': 1px solid #000; }', 0);
+  sheet.insertRule('.' + className + ' { visibility: hidden; }', 1);
+  sheet.insertRule('.' + className + '::before { border: var(--' + className + '); }', 2);
+  var node = document.createElement('div');
+  node.className = className;
+  document.body.appendChild(node);
+  // Bug exists if ::before style ends up propagating to the parent element
+  var hasPseudoVarBug = windowObj.getComputedStyle(node).borderTopStyle === 'solid';
+  node.remove();
+  styleNode.remove();
+  return hasPseudoVarBug;
+}
+
+/**
+ * @param {!Window} windowObj
+ * @param {boolean=} forceRefresh
  * @return {boolean|undefined}
  */
 function supportsCssVariables(windowObj) {
+  var forceRefresh = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+  if (typeof supportsCssVariables_ === 'boolean' && !forceRefresh) {
+    return supportsCssVariables_;
+  }
+
   var supportsFunctionPresent = windowObj.CSS && typeof windowObj.CSS.supports === 'function';
@@ -553,3 +595,9 @@ if (!supportsFunctionPresent) {
   var weAreFeatureDetectingSafari10plus = windowObj.CSS.supports('(--css-vars: yes)') && windowObj.CSS.supports('color', '#00000000');
-  return explicitlySupportsCssVars || weAreFeatureDetectingSafari10plus;
+
+  if (explicitlySupportsCssVars || weAreFeatureDetectingSafari10plus) {
+    supportsCssVariables_ = !detectEdgePseudoVarBug(windowObj);
+  } else {
+    supportsCssVariables_ = false;
+  }
+  return supportsCssVariables_;
 }
@@ -556,0 +604,0 @@

dist/mdc.ripple.min.js

@@ -6,2 +6,2 @@ /*!
 */
-!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.ripple=e():(t.mdc=t.mdc||{},t.mdc.ripple=e())}(this,function(){return function(t){function e(i){if(n[i])return n[i].exports;var a=n[i]={i:i,l:!1,exports:{}};return t[i].call(a.exports,a,a.exports,e),a.l=!0,a.exports}var n={};return e.m=t,e.c=n,e.d=function(t,n,i){e.o(t,n)||Object.defineProperty(t,n,{configurable:!1,enumerable:!0,get:i})},e.n=function(t){var n=t&&t.__esModule?function(){return t.default}:function(){return t};return e.d(n,"a",n),n},e.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},e.p="/assets/",e(e.s=72)}({0:function(t,e,n){"use strict";function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}var a=function(){function t(t,e){for(var n=0;n<e.length;n++){var i=e[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(t,i.key,i)}}return function(e,n,i){return n&&t(e.prototype,n),i&&t(e,i),e}}(),r=function(){function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};i(this,t),this.adapter_=e}return a(t,null,[{key:"cssClasses",get:function(){return{}}},{key:"strings",get:function(){return{}}},{key:"numbers",get:function(){return{}}},{key:"defaultAdapter",get:function(){return{}}}]),a(t,[{key:"init",value:function(){}},{key:"destroy",value:function(){}}]),t}();e.a=r},1:function(t,e,n){"use strict";function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}var a=n(0),r=function(){function t(t,e){for(var n=0;n<e.length;n++){var i=e[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(t,i.key,i)}}return function(e,n,i){return n&&t(e.prototype,n),i&&t(e,i),e}}(),o=function(){function t(e){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:void 0;i(this,t),this.root_=e;for(var a=arguments.length,r=Array(a>2?a-2:0),o=2;o<a;o++)r[o-2]=arguments[o];this.initialize.apply(this,r),this.foundation_=void 0===n?this.getDefaultFoundation():n,this.foundation_.init(),this.initialSyncWithDOM()}return r(t,null,[{key:"attachTo",value:function(e){return new t(e,new a.a)}}]),r(t,[{key:"initialize",value:function(){}},{key:"getDefaultFoundation",value:function(){throw new Error("Subclasses must override getDefaultFoundation to return a properly configured foundation class")}},{key:"initialSyncWithDOM",value:function(){}},{key:"destroy",value:function(){this.foundation_.destroy()}},{key:"listen",value:function(t,e){this.root_.addEventListener(t,e)}},{key:"unlisten",value:function(t,e){this.root_.removeEventListener(t,e)}},{key:"emit",value:function(t,e){var n=arguments.length>2&&void 0!==arguments[2]&&arguments[2],i=void 0;"function"==typeof CustomEvent?i=new CustomEvent(t,{detail:e,bubbles:n}):(i=document.createEvent("CustomEvent"),i.initCustomEvent(t,n,!1,e)),this.root_.dispatchEvent(i)}}]),t}();e.a=o},4:function(t,e,n){"use strict";function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}var a=function(){function t(t,e){for(var n=0;n<e.length;n++){var i=e[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(t,i.key,i)}}return function(e,n,i){return n&&t(e.prototype,n),i&&t(e,i),e}}();!function(){function t(){i(this,t)}a(t,[{key:"browserSupportsCssVars",value:function(){}},{key:"isUnbounded",value:function(){}},{key:"isSurfaceActive",value:function(){}},{key:"isSurfaceDisabled",value:function(){}},{key:"addClass",value:function(t){}},{key:"removeClass",value:function(t){}},{key:"registerInteractionHandler",value:function(t,e){}},{key:"deregisterInteractionHandler",value:function(t,e){}},{key:"registerResizeHandler",value:function(t){}},{key:"deregisterResizeHandler",value:function(t){}},{key:"updateCssVariable",value:function(t,e){}},{key:"computeBoundingRect",value:function(){}},{key:"getWindowPageOffset",value:function(){}}])}()},5:function(t,e,n){"use strict";function i(t){if(t.CSS&&"function"==typeof t.CSS.supports){var e=t.CSS.supports("--css-vars","yes"),n=t.CSS.supports("(--css-vars: yes)")&&t.CSS.supports("color","#00000000");return e||n}}function a(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:window,e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];if(void 0===s||e){var n=!1;try{t.document.addEventListener("test",null,{get passive(){n=!0}})}catch(t){}s=n}return!!s&&{passive:!0}}function r(t){return["webkitMatchesSelector","msMatchesSelector","matches"].filter(function(e){return e in t}).pop()}function o(t,e,n){var i=e.x,a=e.y,r=i+n.left,o=a+n.top,s=void 0,u=void 0;return"touchstart"===t.type?(s=t.changedTouches[0].pageX-r,u=t.changedTouches[0].pageY-o):(s=t.pageX-r,u=t.pageY-o),{x:s,y:u}}Object.defineProperty(e,"__esModule",{value:!0}),e.supportsCssVariables=i,e.applyPassive=a,e.getMatchesProperty=r,e.getNormalizedEventCoords=o;var s=void 0},6:function(t,e,n){"use strict";function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function a(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function r(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}Object.defineProperty(e,"__esModule",{value:!0}),n.d(e,"MDCRipple",function(){return d});var o=n(1),s=(n(4),n(7)),u=n(5);n.d(e,"MDCRippleFoundation",function(){return s.a}),n.d(e,"util",function(){return u});var c=function(){function t(t,e){for(var n=0;n<e.length;n++){var i=e[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(t,i.key,i)}}return function(e,n,i){return n&&t(e.prototype,n),i&&t(e,i),e}}(),d=function(t){function e(){var t;i(this,e);for(var n=arguments.length,r=Array(n),o=0;o<n;o++)r[o]=arguments[o];var s=a(this,(t=e.__proto__||Object.getPrototypeOf(e)).call.apply(t,[this].concat(r)));return s.disabled=!1,s.unbounded_,s}return r(e,t),c(e,[{key:"activate",value:function(){this.foundation_.activate()}},{key:"deactivate",value:function(){this.foundation_.deactivate()}},{key:"layout",value:function(){this.foundation_.layout()}},{key:"getDefaultFoundation",value:function(){return new s.a(e.createAdapter(this))}},{key:"initialSyncWithDOM",value:function(){this.unbounded="mdcRippleIsUnbounded"in this.root_.dataset}},{key:"unbounded",get:function(){return this.unbounded_},set:function(t){var e=s.a.cssClasses.UNBOUNDED;this.unbounded_=Boolean(t),this.unbounded_?this.root_.classList.add(e):this.root_.classList.remove(e)}}],[{key:"attachTo",value:function(t){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},i=n.isUnbounded,a=void 0===i?void 0:i,r=new e(t);return void 0!==a&&(r.unbounded=a),r}},{key:"createAdapter",value:function(t){var e=u.getMatchesProperty(HTMLElement.prototype);return{browserSupportsCssVars:function(){return u.supportsCssVariables(window)},isUnbounded:function(){return t.unbounded},isSurfaceActive:function(){return t.root_[e](":active")},isSurfaceDisabled:function(){return t.disabled},addClass:function(e){return t.root_.classList.add(e)},removeClass:function(e){return t.root_.classList.remove(e)},registerInteractionHandler:function(e,n){return t.root_.addEventListener(e,n,u.applyPassive())},deregisterInteractionHandler:function(e,n){return t.root_.removeEventListener(e,n,u.applyPassive())},registerResizeHandler:function(t){return window.addEventListener("resize",t)},deregisterResizeHandler:function(t){return window.removeEventListener("resize",t)},updateCssVariable:function(e,n){return t.root_.style.setProperty(e,n)},computeBoundingRect:function(){return t.root_.getBoundingClientRect()},getWindowPageOffset:function(){return{x:window.pageXOffset,y:window.pageYOffset}}}}}]),e}(o.a),l=function t(){i(this,t)};l.prototype.root_,l.prototype.unbounded,l.prototype.disabled},7:function(t,e,n){"use strict";function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function a(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function r(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var o=n(0),s=(n(4),n(8)),u=n(5),c=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n=arguments[e];for(var i in n)Object.prototype.hasOwnProperty.call(n,i)&&(t[i]=n[i])}return t},d=function(){function t(t,e){for(var n=0;n<e.length;n++){var i=e[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(t,i.key,i)}}return function(e,n,i){return n&&t(e.prototype,n),i&&t(e,i),e}}(),l={mouseup:"mousedown",pointerup:"pointerdown",touchend:"touchstart",keyup:"keydown",blur:"focus"},f=function(t){function e(t){i(this,e);var n=a(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,c(e.defaultAdapter,t)));return n.layoutFrame_=0,n.frame_={width:0,height:0},n.activationState_=n.defaultActivationState_(),n.xfDuration_=0,n.initialSize_=0,n.maxRadius_=0,n.listenerInfos_=[{activate:"touchstart",deactivate:"touchend"},{activate:"pointerdown",deactivate:"pointerup"},{activate:"mousedown",deactivate:"mouseup"},{activate:"keydown",deactivate:"keyup"},{focus:"focus",blur:"blur"}],n.listeners_={activate:function(t){return n.activate_(t)},deactivate:function(t){return n.deactivate_(t)},focus:function(){return requestAnimationFrame(function(){return n.adapter_.addClass(e.cssClasses.BG_FOCUSED)})},blur:function(){return requestAnimationFrame(function(){return n.adapter_.removeClass(e.cssClasses.BG_FOCUSED)})}},n.resizeHandler_=function(){return n.layout()},n.unboundedCoords_={left:0,top:0},n.fgScale_=0,n.activationTimer_=0,n.fgDeactivationRemovalTimer_=0,n.activationAnimationHasEnded_=!1,n.activationTimerCallback_=function(){n.activationAnimationHasEnded_=!0,n.runDeactivationUXLogicIfReady_()},n}return r(e,t),d(e,[{key:"isSupported_",get:function(){return this.adapter_.browserSupportsCssVars()}}],[{key:"cssClasses",get:function(){return s.a}},{key:"strings",get:function(){return s.c}},{key:"numbers",get:function(){return s.b}},{key:"defaultAdapter",get:function(){return{browserSupportsCssVars:function(){},isUnbounded:function(){},isSurfaceActive:function(){},isSurfaceDisabled:function(){},addClass:function(){},removeClass:function(){},registerInteractionHandler:function(){},deregisterInteractionHandler:function(){},registerResizeHandler:function(){},deregisterResizeHandler:function(){},updateCssVariable:function(){},computeBoundingRect:function(){},getWindowPageOffset:function(){}}}}]),d(e,[{key:"defaultActivationState_",value:function(){return{isActivated:!1,hasDeactivationUXRun:!1,wasActivatedByPointer:!1,wasElementMadeActive:!1,activationStartTime:0,activationEvent:null,isProgrammatic:!1}}},{key:"init",value:function(){var t=this;if(this.isSupported_){this.addEventListeners_();var n=e.cssClasses,i=n.ROOT,a=n.UNBOUNDED;requestAnimationFrame(function(){t.adapter_.addClass(i),t.adapter_.isUnbounded()&&t.adapter_.addClass(a),t.layoutInternal_()})}}},{key:"addEventListeners_",value:function(){var t=this;this.listenerInfos_.forEach(function(e){Object.keys(e).forEach(function(n){t.adapter_.registerInteractionHandler(e[n],t.listeners_[n])})}),this.adapter_.registerResizeHandler(this.resizeHandler_)}},{key:"activate_",value:function(t){var e=this;if(!this.adapter_.isSurfaceDisabled()){var n=this.activationState_;n.isActivated||(n.isActivated=!0,n.isProgrammatic=null===t,n.activationEvent=t,n.wasActivatedByPointer=!n.isProgrammatic&&("mousedown"===t.type||"touchstart"===t.type||"pointerdown"===t.type),n.activationStartTime=Date.now(),requestAnimationFrame(function(){n.wasElementMadeActive=!t||"keydown"!==t.type||e.adapter_.isSurfaceActive(),n.wasElementMadeActive?e.animateActivation_():e.activationState_=e.defaultActivationState_()}))}}},{key:"activate",value:function(){this.activate_(null)}},{key:"animateActivation_",value:function(){var t=this,n=e.strings,i=n.VAR_FG_TRANSLATE_START,a=n.VAR_FG_TRANSLATE_END,r=e.cssClasses,o=r.BG_ACTIVE_FILL,s=r.FG_DEACTIVATION,u=r.FG_ACTIVATION,c=e.numbers.DEACTIVATION_TIMEOUT_MS,d="",l="";if(!this.adapter_.isUnbounded()){var f=this.getFgTranslationCoordinates_(),p=f.startPoint,v=f.endPoint;d=p.x+"px, "+p.y+"px",l=v.x+"px, "+v.y+"px"}this.adapter_.updateCssVariable(i,d),this.adapter_.updateCssVariable(a,l),clearTimeout(this.activationTimer_),clearTimeout(this.fgDeactivationRemovalTimer_),this.rmBoundedActivationClasses_(),this.adapter_.removeClass(s),this.adapter_.computeBoundingRect(),this.adapter_.addClass(o),this.adapter_.addClass(u),this.activationTimer_=setTimeout(function(){return t.activationTimerCallback_()},c)}},{key:"getFgTranslationCoordinates_",value:function(){var t=this.activationState_,e=t.activationEvent,n=t.wasActivatedByPointer,i=void 0;return i=n?Object(u.getNormalizedEventCoords)(e,this.adapter_.getWindowPageOffset(),this.adapter_.computeBoundingRect()):{x:this.frame_.width/2,y:this.frame_.height/2},i={x:i.x-this.initialSize_/2,y:i.y-this.initialSize_/2},{startPoint:i,endPoint:{x:this.frame_.width/2-this.initialSize_/2,y:this.frame_.height/2-this.initialSize_/2}}}},{key:"runDeactivationUXLogicIfReady_",value:function(){var t=this,n=e.cssClasses.FG_DEACTIVATION,i=this.activationState_,a=i.hasDeactivationUXRun,r=i.isActivated;(a||!r)&&this.activationAnimationHasEnded_&&(this.rmBoundedActivationClasses_(),this.adapter_.addClass(n),this.fgDeactivationRemovalTimer_=setTimeout(function(){t.adapter_.removeClass(n)},s.b.FG_DEACTIVATION_MS))}},{key:"rmBoundedActivationClasses_",value:function(){var t=e.cssClasses,n=t.BG_ACTIVE_FILL,i=t.FG_ACTIVATION;this.adapter_.removeClass(n),this.adapter_.removeClass(i),this.activationAnimationHasEnded_=!1,this.adapter_.computeBoundingRect()}},{key:"deactivate_",value:function(t){var e=this,n=this.activationState_;if(n.isActivated){if(n.isProgrammatic){var i=c({},n);return requestAnimationFrame(function(){return e.animateDeactivation_(null,i)}),void(this.activationState_=this.defaultActivationState_())}var a=l[t.type],r=n.activationEvent.type,o=a===r,s=o;n.wasActivatedByPointer&&(s="mouseup"===t.type);var u=c({},n);requestAnimationFrame(function(){o&&(e.activationState_.hasDeactivationUXRun=!0,e.animateDeactivation_(t,u)),s&&(e.activationState_=e.defaultActivationState_())})}}},{key:"deactivate",value:function(){this.deactivate_(null)}},{key:"animateDeactivation_",value:function(t,n){var i=n.wasActivatedByPointer,a=n.wasElementMadeActive,r=e.cssClasses.BG_FOCUSED;(i||a)&&(this.adapter_.removeClass(r),this.runDeactivationUXLogicIfReady_())}},{key:"destroy",value:function(){var t=this;if(this.isSupported_){this.removeEventListeners_();var n=e.cssClasses,i=n.ROOT,a=n.UNBOUNDED;requestAnimationFrame(function(){t.adapter_.removeClass(i),t.adapter_.removeClass(a),t.removeCssVars_()})}}},{key:"removeEventListeners_",value:function(){var t=this;this.listenerInfos_.forEach(function(e){Object.keys(e).forEach(function(n){t.adapter_.deregisterInteractionHandler(e[n],t.listeners_[n])})}),this.adapter_.deregisterResizeHandler(this.resizeHandler_)}},{key:"removeCssVars_",value:function(){var t=this,n=e.strings;Object.keys(n).forEach(function(e){0===e.indexOf("VAR_")&&t.adapter_.updateCssVariable(n[e],null)})}},{key:"layout",value:function(){var t=this;this.layoutFrame_&&cancelAnimationFrame(this.layoutFrame_),this.layoutFrame_=requestAnimationFrame(function(){t.layoutInternal_(),t.layoutFrame_=0})}},{key:"layoutInternal_",value:function(){this.frame_=this.adapter_.computeBoundingRect();var t=Math.max(this.frame_.height,this.frame_.width),n=Math.sqrt(Math.pow(this.frame_.width,2)+Math.pow(this.frame_.height,2));this.initialSize_=t*e.numbers.INITIAL_ORIGIN_SCALE,this.maxRadius_=n+e.numbers.PADDING,this.fgScale_=this.maxRadius_/this.initialSize_,this.xfDuration_=1e3*Math.sqrt(this.maxRadius_/1024),this.updateLayoutCssVars_()}},{key:"updateLayoutCssVars_",value:function(){var t=e.strings,n=t.VAR_SURFACE_WIDTH,i=t.VAR_SURFACE_HEIGHT,a=t.VAR_FG_SIZE,r=t.VAR_LEFT,o=t.VAR_TOP,s=t.VAR_FG_SCALE;this.adapter_.updateCssVariable(n,this.frame_.width+"px"),this.adapter_.updateCssVariable(i,this.frame_.height+"px"),this.adapter_.updateCssVariable(a,this.initialSize_+"px"),this.adapter_.updateCssVariable(s,this.fgScale_),this.adapter_.isUnbounded()&&(this.unboundedCoords_={left:Math.round(this.frame_.width/2-this.initialSize_/2),top:Math.round(this.frame_.height/2-this.initialSize_/2)},this.adapter_.updateCssVariable(r,this.unboundedCoords_.left+"px"),this.adapter_.updateCssVariable(o,this.unboundedCoords_.top+"px"))}}]),e}(o.a);e.a=f},72:function(t,e,n){t.exports=n(6)},8:function(t,e,n){"use strict";n.d(e,"a",function(){return i}),n.d(e,"c",function(){return a}),n.d(e,"b",function(){return r});var i={ROOT:"mdc-ripple-upgraded",UNBOUNDED:"mdc-ripple-upgraded--unbounded",BG_FOCUSED:"mdc-ripple-upgraded--background-focused",BG_ACTIVE_FILL:"mdc-ripple-upgraded--background-active-fill",FG_ACTIVATION:"mdc-ripple-upgraded--foreground-activation",FG_DEACTIVATION:"mdc-ripple-upgraded--foreground-deactivation"},a={VAR_SURFACE_WIDTH:"--mdc-ripple-surface-width",VAR_SURFACE_HEIGHT:"--mdc-ripple-surface-height",VAR_FG_SIZE:"--mdc-ripple-fg-size",VAR_LEFT:"--mdc-ripple-left",VAR_TOP:"--mdc-ripple-top",VAR_FG_SCALE:"--mdc-ripple-fg-scale",VAR_FG_TRANSLATE_START:"--mdc-ripple-fg-translate-start",VAR_FG_TRANSLATE_END:"--mdc-ripple-fg-translate-end"},r={PADDING:10,INITIAL_ORIGIN_SCALE:.6,DEACTIVATION_TIMEOUT_MS:300,FG_DEACTIVATION_MS:83}}})});
+!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.ripple=e():(t.mdc=t.mdc||{},t.mdc.ripple=e())}(this,function(){return function(t){function e(i){if(n[i])return n[i].exports;var a=n[i]={i:i,l:!1,exports:{}};return t[i].call(a.exports,a,a.exports,e),a.l=!0,a.exports}var n={};return e.m=t,e.c=n,e.d=function(t,n,i){e.o(t,n)||Object.defineProperty(t,n,{configurable:!1,enumerable:!0,get:i})},e.n=function(t){var n=t&&t.__esModule?function(){return t.default}:function(){return t};return e.d(n,"a",n),n},e.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},e.p="/assets/",e(e.s=72)}({0:function(t,e,n){"use strict";function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}var a=function(){function t(t,e){for(var n=0;n<e.length;n++){var i=e[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in 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t(){i(this,t)}a(t,[{key:"browserSupportsCssVars",value:function(){}},{key:"isUnbounded",value:function(){}},{key:"isSurfaceActive",value:function(){}},{key:"isSurfaceDisabled",value:function(){}},{key:"addClass",value:function(t){}},{key:"removeClass",value:function(t){}},{key:"registerInteractionHandler",value:function(t,e){}},{key:"deregisterInteractionHandler",value:function(t,e){}},{key:"registerResizeHandler",value:function(t){}},{key:"deregisterResizeHandler",value:function(t){}},{key:"updateCssVariable",value:function(t,e){}},{key:"computeBoundingRect",value:function(){}},{key:"getWindowPageOffset",value:function(){}}])}()},5:function(t,e,n){"use strict";function i(t){var e=t.document,n="test-edge-css-var",i=e.createElement("style");e.head.appendChild(i);var a=i.sheet;a.insertRule(":root { --"+n+": 1px solid #000; }",0),a.insertRule("."+n+" { visibility: hidden; }",1),a.insertRule("."+n+"::before { border: var(--"+n+"); }",2);var r=e.createElement("div");r.className=n,e.body.appendChild(r);var o="solid"===t.getComputedStyle(r).borderTopStyle;return r.remove(),i.remove(),o}function a(t){var e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];if("boolean"==typeof u&&!e)return u;if(t.CSS&&"function"==typeof t.CSS.supports){var n=t.CSS.supports("--css-vars","yes"),a=t.CSS.supports("(--css-vars: yes)")&&t.CSS.supports("color","#00000000");return u=!(!n&&!a||i(t))}}function r(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:window,e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];if(void 0===c||e){var n=!1;try{t.document.addEventListener("test",null,{get passive(){n=!0}})}catch(t){}c=n}return!!c&&{passive:!0}}function o(t){return["webkitMatchesSelector","msMatchesSelector","matches"].filter(function(e){return e in t}).pop()}function s(t,e,n){var i=e.x,a=e.y,r=i+n.left,o=a+n.top,s=void 0,u=void 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o=n(1),s=(n(4),n(7)),u=n(5);n.d(e,"MDCRippleFoundation",function(){return s.a}),n.d(e,"util",function(){return u});var c=function(){function t(t,e){for(var n=0;n<e.length;n++){var i=e[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(t,i.key,i)}}return function(e,n,i){return n&&t(e.prototype,n),i&&t(e,i),e}}(),d=function(t){function e(){var t;i(this,e);for(var n=arguments.length,r=Array(n),o=0;o<n;o++)r[o]=arguments[o];var s=a(this,(t=e.__proto__||Object.getPrototypeOf(e)).call.apply(t,[this].concat(r)));return s.disabled=!1,s.unbounded_,s}return r(e,t),c(e,[{key:"activate",value:function(){this.foundation_.activate()}},{key:"deactivate",value:function(){this.foundation_.deactivate()}},{key:"layout",value:function(){this.foundation_.layout()}},{key:"getDefaultFoundation",value:function(){return new s.a(e.createAdapter(this))}},{key:"initialSyncWithDOM",value:function(){this.unbounded="mdcRippleIsUnbounded"in this.root_.dataset}},{key:"unbounded",get:function(){return this.unbounded_},set:function(t){var e=s.a.cssClasses.UNBOUNDED;this.unbounded_=Boolean(t),this.unbounded_?this.root_.classList.add(e):this.root_.classList.remove(e)}}],[{key:"attachTo",value:function(t){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},i=n.isUnbounded,a=void 0===i?void 0:i,r=new e(t);return void 0!==a&&(r.unbounded=a),r}},{key:"createAdapter",value:function(t){var e=u.getMatchesProperty(HTMLElement.prototype);return{browserSupportsCssVars:function(){return u.supportsCssVariables(window)},isUnbounded:function(){return t.unbounded},isSurfaceActive:function(){return t.root_[e](":active")},isSurfaceDisabled:function(){return t.disabled},addClass:function(e){return t.root_.classList.add(e)},removeClass:function(e){return t.root_.classList.remove(e)},registerInteractionHandler:function(e,n){return t.root_.addEventListener(e,n,u.applyPassive())},deregisterInteractionHandler:function(e,n){return t.root_.removeEventListener(e,n,u.applyPassive())},registerResizeHandler:function(t){return window.addEventListener("resize",t)},deregisterResizeHandler:function(t){return window.removeEventListener("resize",t)},updateCssVariable:function(e,n){return t.root_.style.setProperty(e,n)},computeBoundingRect:function(){return t.root_.getBoundingClientRect()},getWindowPageOffset:function(){return{x:window.pageXOffset,y:window.pageYOffset}}}}}]),e}(o.a),l=function t(){i(this,t)};l.prototype.root_,l.prototype.unbounded,l.prototype.disabled},7:function(t,e,n){"use strict";function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function a(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function r(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var o=n(0),s=(n(4),n(8)),u=n(5),c=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n=arguments[e];for(var i in n)Object.prototype.hasOwnProperty.call(n,i)&&(t[i]=n[i])}return t},d=function(){function t(t,e){for(var n=0;n<e.length;n++){var i=e[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(t,i.key,i)}}return function(e,n,i){return n&&t(e.prototype,n),i&&t(e,i),e}}(),l={mouseup:"mousedown",pointerup:"pointerdown",touchend:"touchstart",keyup:"keydown",blur:"focus"},f=function(t){function e(t){i(this,e);var n=a(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,c(e.defaultAdapter,t)));return n.layoutFrame_=0,n.frame_={width:0,height:0},n.activationState_=n.defaultActivationState_(),n.xfDuration_=0,n.initialSize_=0,n.maxRadius_=0,n.listenerInfos_=[{activate:"touchstart",deactivate:"touchend"},{activate:"pointerdown",deactivate:"pointerup"},{activate:"mousedown",deactivate:"mouseup"},{activate:"keydown",deactivate:"keyup"},{focus:"focus",blur:"blur"}],n.listeners_={activate:function(t){return n.activate_(t)},deactivate:function(t){return n.deactivate_(t)},focus:function(){return requestAnimationFrame(function(){return n.adapter_.addClass(e.cssClasses.BG_FOCUSED)})},blur:function(){return requestAnimationFrame(function(){return n.adapter_.removeClass(e.cssClasses.BG_FOCUSED)})}},n.resizeHandler_=function(){return n.layout()},n.unboundedCoords_={left:0,top:0},n.fgScale_=0,n.activationTimer_=0,n.fgDeactivationRemovalTimer_=0,n.activationAnimationHasEnded_=!1,n.activationTimerCallback_=function(){n.activationAnimationHasEnded_=!0,n.runDeactivationUXLogicIfReady_()},n}return r(e,t),d(e,[{key:"isSupported_",get:function(){return this.adapter_.browserSupportsCssVars()}}],[{key:"cssClasses",get:function(){return s.a}},{key:"strings",get:function(){return s.c}},{key:"numbers",get:function(){return s.b}},{key:"defaultAdapter",get:function(){return{browserSupportsCssVars:function(){},isUnbounded:function(){},isSurfaceActive:function(){},isSurfaceDisabled:function(){},addClass:function(){},removeClass:function(){},registerInteractionHandler:function(){},deregisterInteractionHandler:function(){},registerResizeHandler:function(){},deregisterResizeHandler:function(){},updateCssVariable:function(){},computeBoundingRect:function(){},getWindowPageOffset:function(){}}}}]),d(e,[{key:"defaultActivationState_",value:function(){return{isActivated:!1,hasDeactivationUXRun:!1,wasActivatedByPointer:!1,wasElementMadeActive:!1,activationStartTime:0,activationEvent:null,isProgrammatic:!1}}},{key:"init",value:function(){var t=this;if(this.isSupported_){this.addEventListeners_();var n=e.cssClasses,i=n.ROOT,a=n.UNBOUNDED;requestAnimationFrame(function(){t.adapter_.addClass(i),t.adapter_.isUnbounded()&&t.adapter_.addClass(a),t.layoutInternal_()})}}},{key:"addEventListeners_",value:function(){var t=this;this.listenerInfos_.forEach(function(e){Object.keys(e).forEach(function(n){t.adapter_.registerInteractionHandler(e[n],t.listeners_[n])})}),this.adapter_.registerResizeHandler(this.resizeHandler_)}},{key:"activate_",value:function(t){var e=this;if(!this.adapter_.isSurfaceDisabled()){var n=this.activationState_;n.isActivated||(n.isActivated=!0,n.isProgrammatic=null===t,n.activationEvent=t,n.wasActivatedByPointer=!n.isProgrammatic&&("mousedown"===t.type||"touchstart"===t.type||"pointerdown"===t.type),n.activationStartTime=Date.now(),requestAnimationFrame(function(){n.wasElementMadeActive=!t||"keydown"!==t.type||e.adapter_.isSurfaceActive(),n.wasElementMadeActive?e.animateActivation_():e.activationState_=e.defaultActivationState_()}))}}},{key:"activate",value:function(){this.activate_(null)}},{key:"animateActivation_",value:function(){var t=this,n=e.strings,i=n.VAR_FG_TRANSLATE_START,a=n.VAR_FG_TRANSLATE_END,r=e.cssClasses,o=r.BG_ACTIVE_FILL,s=r.FG_DEACTIVATION,u=r.FG_ACTIVATION,c=e.numbers.DEACTIVATION_TIMEOUT_MS,d="",l="";if(!this.adapter_.isUnbounded()){var f=this.getFgTranslationCoordinates_(),p=f.startPoint,v=f.endPoint;d=p.x+"px, "+p.y+"px",l=v.x+"px, "+v.y+"px"}this.adapter_.updateCssVariable(i,d),this.adapter_.updateCssVariable(a,l),clearTimeout(this.activationTimer_),clearTimeout(this.fgDeactivationRemovalTimer_),this.rmBoundedActivationClasses_(),this.adapter_.removeClass(s),this.adapter_.computeBoundingRect(),this.adapter_.addClass(o),this.adapter_.addClass(u),this.activationTimer_=setTimeout(function(){return t.activationTimerCallback_()},c)}},{key:"getFgTranslationCoordinates_",value:function(){var t=this.activationState_,e=t.activationEvent,n=t.wasActivatedByPointer,i=void 0;return i=n?Object(u.getNormalizedEventCoords)(e,this.adapter_.getWindowPageOffset(),this.adapter_.computeBoundingRect()):{x:this.frame_.width/2,y:this.frame_.height/2},i={x:i.x-this.initialSize_/2,y:i.y-this.initialSize_/2},{startPoint:i,endPoint:{x:this.frame_.width/2-this.initialSize_/2,y:this.frame_.height/2-this.initialSize_/2}}}},{key:"runDeactivationUXLogicIfReady_",value:function(){var t=this,n=e.cssClasses.FG_DEACTIVATION,i=this.activationState_,a=i.hasDeactivationUXRun,r=i.isActivated;(a||!r)&&this.activationAnimationHasEnded_&&(this.rmBoundedActivationClasses_(),this.adapter_.addClass(n),this.fgDeactivationRemovalTimer_=setTimeout(function(){t.adapter_.removeClass(n)},s.b.FG_DEACTIVATION_MS))}},{key:"rmBoundedActivationClasses_",value:function(){var t=e.cssClasses,n=t.BG_ACTIVE_FILL,i=t.FG_ACTIVATION;this.adapter_.removeClass(n),this.adapter_.removeClass(i),this.activationAnimationHasEnded_=!1,this.adapter_.computeBoundingRect()}},{key:"deactivate_",value:function(t){var e=this,n=this.activationState_;if(n.isActivated){if(n.isProgrammatic){var i=c({},n);return requestAnimationFrame(function(){return e.animateDeactivation_(null,i)}),void(this.activationState_=this.defaultActivationState_())}var a=l[t.type],r=n.activationEvent.type,o=a===r,s=o;n.wasActivatedByPointer&&(s="mouseup"===t.type);var u=c({},n);requestAnimationFrame(function(){o&&(e.activationState_.hasDeactivationUXRun=!0,e.animateDeactivation_(t,u)),s&&(e.activationState_=e.defaultActivationState_())})}}},{key:"deactivate",value:function(){this.deactivate_(null)}},{key:"animateDeactivation_",value:function(t,n){var i=n.wasActivatedByPointer,a=n.wasElementMadeActive,r=e.cssClasses.BG_FOCUSED;(i||a)&&(this.adapter_.removeClass(r),this.runDeactivationUXLogicIfReady_())}},{key:"destroy",value:function(){var t=this;if(this.isSupported_){this.removeEventListeners_();var n=e.cssClasses,i=n.ROOT,a=n.UNBOUNDED;requestAnimationFrame(function(){t.adapter_.removeClass(i),t.adapter_.removeClass(a),t.removeCssVars_()})}}},{key:"removeEventListeners_",value:function(){var t=this;this.listenerInfos_.forEach(function(e){Object.keys(e).forEach(function(n){t.adapter_.deregisterInteractionHandler(e[n],t.listeners_[n])})}),this.adapter_.deregisterResizeHandler(this.resizeHandler_)}},{key:"removeCssVars_",value:function(){var t=this,n=e.strings;Object.keys(n).forEach(function(e){0===e.indexOf("VAR_")&&t.adapter_.updateCssVariable(n[e],null)})}},{key:"layout",value:function(){var t=this;this.layoutFrame_&&cancelAnimationFrame(this.layoutFrame_),this.layoutFrame_=requestAnimationFrame(function(){t.layoutInternal_(),t.layoutFrame_=0})}},{key:"layoutInternal_",value:function(){this.frame_=this.adapter_.computeBoundingRect();var t=Math.max(this.frame_.height,this.frame_.width),n=Math.sqrt(Math.pow(this.frame_.width,2)+Math.pow(this.frame_.height,2));this.initialSize_=t*e.numbers.INITIAL_ORIGIN_SCALE,this.maxRadius_=n+e.numbers.PADDING,this.fgScale_=this.maxRadius_/this.initialSize_,this.xfDuration_=1e3*Math.sqrt(this.maxRadius_/1024),this.updateLayoutCssVars_()}},{key:"updateLayoutCssVars_",value:function(){var t=e.strings,n=t.VAR_SURFACE_WIDTH,i=t.VAR_SURFACE_HEIGHT,a=t.VAR_FG_SIZE,r=t.VAR_LEFT,o=t.VAR_TOP,s=t.VAR_FG_SCALE;this.adapter_.updateCssVariable(n,this.frame_.width+"px"),this.adapter_.updateCssVariable(i,this.frame_.height+"px"),this.adapter_.updateCssVariable(a,this.initialSize_+"px"),this.adapter_.updateCssVariable(s,this.fgScale_),this.adapter_.isUnbounded()&&(this.unboundedCoords_={left:Math.round(this.frame_.width/2-this.initialSize_/2),top:Math.round(this.frame_.height/2-this.initialSize_/2)},this.adapter_.updateCssVariable(r,this.unboundedCoords_.left+"px"),this.adapter_.updateCssVariable(o,this.unboundedCoords_.top+"px"))}}]),e}(o.a);e.a=f},72:function(t,e,n){t.exports=n(6)},8:function(t,e,n){"use strict";n.d(e,"a",function(){return i}),n.d(e,"c",function(){return a}),n.d(e,"b",function(){return r});var i={ROOT:"mdc-ripple-upgraded",UNBOUNDED:"mdc-ripple-upgraded--unbounded",BG_FOCUSED:"mdc-ripple-upgraded--background-focused",BG_ACTIVE_FILL:"mdc-ripple-upgraded--background-active-fill",FG_ACTIVATION:"mdc-ripple-upgraded--foreground-activation",FG_DEACTIVATION:"mdc-ripple-upgraded--foreground-deactivation"},a={VAR_SURFACE_WIDTH:"--mdc-ripple-surface-width",VAR_SURFACE_HEIGHT:"--mdc-ripple-surface-height",VAR_FG_SIZE:"--mdc-ripple-fg-size",VAR_LEFT:"--mdc-ripple-left",VAR_TOP:"--mdc-ripple-top",VAR_FG_SCALE:"--mdc-ripple-fg-scale",VAR_FG_TRANSLATE_START:"--mdc-ripple-fg-translate-start",VAR_FG_TRANSLATE_END:"--mdc-ripple-fg-translate-end"},r={PADDING:10,INITIAL_ORIGIN_SCALE:.6,DEACTIVATION_TIMEOUT_MS:300,FG_DEACTIVATION_MS:83}}})});

package.json

 {
   "name": "@material/ripple",
   "description": "The Material Components for the web Ink Ripple effect for web element interactions",
-  "version": "0.8.1",
+  "version": "0.8.2",
   "license": "Apache-2.0",
@@ -18,4 +18,4 @@ "keywords": [
     "@material/base": "^0.2.3",
-    "@material/theme": "^0.1.6"
+    "@material/theme": "^0.1.7"
   }
 }

README.md

@@ -34,2 +34,3 @@ <!--docs:
     - [Specifying known element dimensions](#specifying-known-element-dimensions)
+  - [Caveat: Edge](#caveat-edge)
   - [Caveat: Safari](#caveat-safari)
@@ -49,6 +50,4 @@ - [Caveat: Theme Custom Variables](#caveat-theme-custom-variables)
 
-[Most modern browsers](http://caniuse.com/#feat=css-variables) support CSS variables, so MDC ripple will work just fine. In other cases, MDC ripple will _still work_ if you include it in your codebase. It will simply check if CSS variables are supported upon initialization and if they aren't, gracefully exit. The only exception to this rule is Safari, which does support CSS variables
-but unfortunately ripples are disabled for (see [below](#caveat-safari) for an explanation).
+Edge and Safari, although they do [support CSS variables](http://caniuse.com/#feat=css-variables), do not support MDC Ripple. See the respective caveats for [Edge](#caveat-edge) and [Safari](#caveat-safari) for an explanation.
 
-
 ## Installation
@@ -268,3 +267,3 @@
 | --- | --- |
-| `browserSupportsCssVars() => boolean` | Whether or not the given browser supports CSS Variables. When implementing this, please take the [Safari considerations](#caveat-safari) into account. We provide a `supportsCssVariables` function within the `util.js` which we recommend using, as it handles this for you. |
+| `browserSupportsCssVars() => boolean` | Whether or not the given browser supports CSS Variables. When implementing this, please take the [Edge](#caveat-edge) and [Safari](#caveat-safari) considerations into account. We provide a `supportsCssVariables` function within the `util.js` which we recommend using, as it handles this for you. |
 | `isUnbounded() => boolean` | Whether or not the ripple should be considered unbounded. |
@@ -386,2 +385,13 @@ | `isSurfaceActive() => boolean` | Whether or not the surface the ripple is acting upon is [active](https://www.w3.org/TR/css3-selectors/#useraction-pseudos). We use this to detect whether or not a keyboard event has activated the surface the ripple is on. This does not need to make use of `:active` (which is what we do); feel free to supply your own heuristics for it. |
 
+## Caveat: Edge
+
+> TL;DR ripples are disabled in Edge because of issues with its support of CSS variables in pseudo elements.
+
+Edge introduced CSS variables in version 15. Unfortunately, there are
+[known issues](https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/11495448/)
+involving its implementation for pseudo-elements which cause ripples to behave incorrectly.
+We feature-detect Edge's buggy behavior as it pertains to `::before`, and do not initialize ripples if the bug is
+observed. Earlier versions of Edge (and IE) are not affected, as they do not report support for CSS variables at all,
+and as such ripples are never initialized.
+
 ## Caveat: Safari
@@ -423,9 +433,9 @@
 
-#### util.supportsCssVariables(windowObj) => Boolean
+#### util.supportsCssVariables(windowObj, forceRefresh = false) => Boolean
 
-Determine whether the current browser supports CSS variables (custom properties).
+Determine whether the current browser supports CSS variables (custom properties). This function caches its result; `forceRefresh` will force recomputation, but is used mainly for testing and should not be necessary in normal use.
 
 #### util.applyPassive(globalObj = window, forceRefresh = false) => object
 
-Determine whether the current browser supports passive event listeners, and if so, use them.
+Determine whether the current browser supports passive event listeners, and if so, use them. This function caches its result; `forceRefresh` will force recomputation, but is used mainly for testing and should not be necessary in normal use.
 
@@ -432,0 +442,0 @@ #### getMatchesProperty(HTMLElementPrototype) => Function

util.js

@@ -17,3 +17,12 @@ /**
 
-/** @private {boolean|undefined} */
+/**
+ * Stores result from supportsCssVariables to avoid redundant processing to detect CSS custom variable support.
+ * @private {boolean|undefined}
+ */
+let supportsCssVariables_;
+
+/**
+ * Stores result from applyPassive to avoid redundant processing to detect passive event listener support.
+ * @private {boolean|undefined}
+ */
 let supportsPassive_;
@@ -23,5 +32,36 @@
  * @param {!Window} windowObj
+ * @return {boolean}
+ */
+function detectEdgePseudoVarBug(windowObj) {
+  // Detect versions of Edge with buggy var() support
+  // See: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/11495448/
+  const document = windowObj.document;
+  const className = 'test-edge-css-var';
+  const styleNode = document.createElement('style');
+  document.head.appendChild(styleNode);
+  const sheet = styleNode.sheet;
+  // Internet Explorer 11 requires indices to always be specified to insertRule
+  sheet.insertRule(`:root { --${className}: 1px solid #000; }`, 0);
+  sheet.insertRule(`.${className} { visibility: hidden; }`, 1);
+  sheet.insertRule(`.${className}::before { border: var(--${className}); }`, 2);
+  const node = document.createElement('div');
+  node.className = className;
+  document.body.appendChild(node);
+  // Bug exists if ::before style ends up propagating to the parent element
+  const hasPseudoVarBug = windowObj.getComputedStyle(node).borderTopStyle === 'solid';
+  node.remove();
+  styleNode.remove();
+  return hasPseudoVarBug;
+}
+
+/**
+ * @param {!Window} windowObj
+ * @param {boolean=} forceRefresh
  * @return {boolean|undefined}
  */
-export function supportsCssVariables(windowObj) {
+export function supportsCssVariables(windowObj, forceRefresh = false) {
+  if (typeof supportsCssVariables_ === 'boolean' && !forceRefresh) {
+    return supportsCssVariables_;
+  }
+
   const supportsFunctionPresent = windowObj.CSS && typeof windowObj.CSS.supports === 'function';
@@ -39,3 +79,9 @@ if (!supportsFunctionPresent) {
   );
-  return explicitlySupportsCssVars || weAreFeatureDetectingSafari10plus;
+
+  if (explicitlySupportsCssVars || weAreFeatureDetectingSafari10plus) {
+    supportsCssVariables_ = !detectEdgePseudoVarBug(windowObj);
+  } else {
+    supportsCssVariables_ = false;
+  }
+  return supportsCssVariables_;
 }
@@ -42,0 +88,0 @@

New alerts

New author

Supply chain risk

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

163467

increased by3.02%

Lines of code

2660

increased by3.3%

Number of lines in readme file

444

increased by2.3%

Worsened metrics

Number of medium supply chain risk alerts

1

increased byInfinity%

Dependency changes

• Updated@material/theme@^0.1.7