Add support for asynchronous actions

demo/scripts/demo.js

@@ -15,7 +15,7 @@ document.addEventListener('DOMContentLoaded', function () {
         title: 'Focus Anything',
         description: 'You can use it to highlight literally anything, images, text, div, span, li etc.',
         position: 'bottom'
-      }
+      },
     }, {
       element: '#name_driver',
       popover: {

dist/driver.min.js

@@ -1,2 +1,2 @@
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e=this.getSize().width,i=this.options.padding+10;this.node.style.left=t.left-e-i+"px",this.node.style.top=t.top-this.options.padding+"px",this.node.style.right="",this.node.style.bottom="",this.tipNode.classList.add("right")}},{key:"positionOnRight",value:function(t){var e=this.options.padding+10;this.node.style.left=t.right+e+"px",this.node.style.top=t.top-this.options.padding+"px",this.node.style.right="",this.node.style.bottom="",this.tipNode.classList.add("left")}},{key:"positionOnTop",value:function(t){var e=this.getSize().height,i=this.options.padding+10;this.node.style.top=t.top-e-i+"px",this.node.style.left=t.left-this.options.padding+"px",this.node.style.right="",this.node.style.bottom="",this.tipNode.classList.add("bottom")}},{key:"positionOnBottom",value:function(t){var e=this.options.padding+10;this.node.style.top=t.bottom+e+"px",this.node.style.left=t.left-this.options.padding+"px",this.node.style.right="",this.node.style.bottom="",this.tipNode.classList.add("top")}},{key:"autoPosition",value:function(t){var e=this.getFullPageSize(),i=this.getSize(),o=e.height,n=i.height,s=this.options.padding+10;t.bottom+n+s>=o?this.positionOnTop(t):this.positionOnBottom(t)}}]),e}();e.default=h,t.exports=e.default},function(t,e,i){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var o=function(){function t(t,e){for(var i=0;i<e.length;i++){var o=e[i];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,i,o){return i&&t(e.prototype,i),o&&t(e,o),e}}();var n=function(){function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},i=e.left,o=void 0===i?0:i,n=e.top,s=void 0===n?0:n,r=e.right,l=void 0===r?0:r,h=e.bottom,a=void 0===h?0:h;!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.left=o,this.right=l,this.top=s,this.bottom=a}return o(t,[{key:"canHighlight",value:function(){return this.left<this.right&&this.top<this.bottom}},{key:"equals",value:function(t){return Math.round(this.left)===Math.round(t.left)&&Math.round(this.right)===Math.round(t.right)&&Math.round(this.top)===Math.round(t.top)&&Math.round(this.bottom)===Math.round(t.bottom)}}]),t}();e.default=n,t.exports=e.default},function(t,e,i){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var o=function(){function t(t,e){for(var i=0;i<e.length;i++){var o=e[i];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,i,o){return i&&t(e.prototype,i),o&&t(e,o),e}}(),n=i(1),s=i(0);var r=function(){function t(e,i,o){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.options=e,this.highlightedElement=null,this.lastHighlightedElement=null,this.hideTimer=null,this.window=i,this.document=o,this.removeNode=this.removeNode.bind(this)}return o(t,[{key:"attachNode",value:function(){var t=this.document.getElementById(n.ID_OVERLAY);t||(t=(0,s.createNodeFromString)(n.OVERLAY_HTML),document.body.appendChild(t)),this.node=t,this.node.style.opacity="0",this.options.animate||this.node.parentElement&&this.node.parentElement.removeChild(this.node)}},{key:"highlight",value:function(t){t&&t.node?t.isSame(this.highlightedElement)||(this.window.clearTimeout(this.hideTimer),t.onHighlightStarted(),this.highlightedElement&&!this.highlightedElement.isSame(this.lastHighlightedElement)&&this.highlightedElement.onDeselected(),t.getCalculatedPosition().canHighlight()&&(this.lastHighlightedElement=this.highlightedElement,this.highlightedElement=t,this.show(),this.highlightedElement.onHighlighted())):console.warn("Invalid element to highlight. Must be an instance of `Element`")}},{key:"show",value:function(){var t=this;this.node&&this.node.parentElement||(this.attachNode(),window.setTimeout(function(){t.node.style.opacity=""+t.options.opacity,t.node.style.position="fixed",t.node.style.left="0",t.node.style.top="0",t.node.style.bottom="0",t.node.style.right="0"}))}},{key:"getHighlightedElement",value:function(){return this.highlightedElement}},{key:"getLastHighlightedElement",value:function(){return this.lastHighlightedElement}},{key:"clear",value:function(){var t=arguments.length>0&&void 0!==arguments[0]&&arguments[0];if(this.options.onReset&&this.options.onReset(this.highlightedElement),this.highlightedElement){this.highlightedElement.onDeselected(!0)}this.highlightedElement=null,this.lastHighlightedElement=null,this.node&&(this.window.clearTimeout(this.hideTimer),this.options.animate&&!t?(this.node.style.opacity="0",this.hideTimer=this.window.setTimeout(this.removeNode,n.ANIMATION_DURATION_MS)):this.removeNode())}},{key:"removeNode",value:function(){this.node&&this.node.parentElement&&this.node.parentElement.removeChild(this.node)}},{key:"refresh",value:function(){this.highlightedElement&&(this.highlightedElement.showPopover(),this.highlightedElement.showStage())}}]),t}();e.default=r,t.exports=e.default},function(t,e,i){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var o=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var i=arguments[e];for(var o in i)Object.prototype.hasOwnProperty.call(i,o)&&(t[o]=i[o])}return t},n=function(){function t(t,e){for(var i=0;i<e.length;i++){var o=e[i];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,i,o){return i&&t(e.prototype,i),o&&t(e,o),e}}(),s=d(i(6)),r=d(i(2)),l=d(i(4)),h=i(1),a=d(i(3)),u=i(0);function d(t){return t&&t.__esModule?t:{default:t}}var c=function(){function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.options=o({animate:h.SHOULD_ANIMATE_OVERLAY,opacity:h.OVERLAY_OPACITY,padding:h.OVERLAY_PADDING,scrollIntoViewOptions:null,allowClose:h.SHOULD_OUTSIDE_CLICK_CLOSE,keyboardControl:h.ALLOW_KEYBOARD_CONTROL,overlayClickNext:h.SHOULD_OUTSIDE_CLICK_NEXT,stageBackground:"#ffffff",onHighlightStarted:function(){return null},onHighlighted:function(){return null},onDeselected:function(){return null},onReset:function(){return null},onNext:function(){return null},onPrevious:function(){return null}},e),this.document=document,this.window=window,this.isActivated=!1,this.steps=[],this.currentStep=0,this.overlay=new s.default(this.options,window,document),this.onResize=this.onResize.bind(this),this.onKeyUp=this.onKeyUp.bind(this),this.onClick=this.onClick.bind(this),this.bind()}return n(t,[{key:"bind",value:function(){this.window.addEventListener("resize",this.onResize,!1),this.window.addEventListener("keyup",this.onKeyUp,!1),this.window.addEventListener("click",this.onClick,!1),this.window.addEventListener("touchstart",this.onClick,!1)}},{key:"onClick",value:function(t){if(this.isActivated&&this.hasHighlightedElement()){var e=this.overlay.getHighlightedElement(),i=this.document.getElementById(h.ID_POPOVER),o=e.node.contains(t.target),n=i&&i.contains(t.target);if(o||n||!this.options.overlayClickNext)if(o||n||!this.options.allowClose){var s=t.target.classList.contains(h.CLASS_NEXT_STEP_BTN),r=t.target.classList.contains(h.CLASS_PREV_STEP_BTN);t.target.classList.contains(h.CLASS_CLOSE_BTN)?this.reset():s?this.moveNext():r&&this.movePrevious()}else this.reset();else this.moveNext()}}},{key:"onResize",value:function(){this.isActivated&&this.overlay.refresh()}},{key:"onKeyUp",value:function(t){this.isActivated&&this.options.keyboardControl&&(t.keyCode===h.ESC_KEY_CODE&&this.options.allowClose?this.reset():0!==this.steps.length&&(t.keyCode===h.RIGHT_KEY_CODE?this.moveNext():t.keyCode===h.LEFT_KEY_CODE&&this.movePrevious()))}},{key:"movePrevious",value:function(){var t=this.steps[this.currentStep],e=this.steps[this.currentStep-1];e?(t.options.onPrevious&&t.options.onPrevious(),this.overlay.highlight(e),this.currentStep-=1):this.reset()}},{key:"moveNext",value:function(){var t=this.steps[this.currentStep],e=this.steps[this.currentStep+1];e?(t.options.onNext&&t.options.onNext(),this.overlay.highlight(e),this.currentStep+=1):this.reset()}},{key:"hasNextStep",value:function(){return!!this.steps[this.currentStep+1]}},{key:"hasPreviousStep",value:function(){return!!this.steps[this.currentStep-1]}},{key:"reset",value:function(){var t=arguments.length>0&&void 0!==arguments[0]&&arguments[0];this.currentStep=0,this.isActivated=!1,this.overlay.clear(t)}},{key:"hasHighlightedElement",value:function(){var t=this.overlay.getHighlightedElement();return t&&t.node}},{key:"getHighlightedElement",value:function(){return this.overlay.getHighlightedElement()}},{key:"getLastHighlightedElement",value:function(){return this.overlay.getLastHighlightedElement()}},{key:"defineSteps",value:function(t){this.steps=[];for(var e=0;e<t.length;e++){var i=this.prepareElementFromStep(t[e],t,e);i&&this.steps.push(i)}}},{key:"prepareElementFromStep",value:function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:[],i=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0,n={},s=t,h="string"!=typeof t&&!(0,u.isDomElement)(t);if(!t||h&&!t.element)throw new Error("Element is required in step "+i);h&&(s=t.element,n=o({},this.options,t));var d=(0,u.isDomElement)(s)?s:this.document.querySelector(s);if(!d)return console.warn("Element to highlight "+s+" not found"),null;var c=null;if(n.popover&&n.popover.title){var p=o({},this.options,n.popover,{totalCount:e.length,currentIndex:i,isFirst:0===i,isLast:i===e.length-1});c=new l.default(p,this.window,this.document)}var f=o({},this.options,n),v=new a.default(f,this.window,this.document);return new r.default({node:d,options:n,popover:c,stage:v,overlay:this.overlay,window:this.window,document:this.document})}},{key:"start",value:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0;if(!this.steps||0===this.steps.length)throw new Error("There are no steps defined to iterate");this.isActivated=!0,this.currentStep=t,this.overlay.highlight(this.steps[t])}},{key:"highlight",value:function(t){this.isActivated=!0;var e=this.prepareElementFromStep(t);e&&this.overlay.highlight(e)}}]),t}();e.default=c,t.exports=e.default},function(t,e){},function(t,e,i){i(8),t.exports=i(7)}])});
 //# sourceMappingURL=driver.min.js.map

index.html

@@ -284,7 +284,9 @@ driver.highlight({
   onHighlightStarted: (Element) {}, // Called when element is about to be highlighted
   onHighlighted: (Element) {}, // Called when element is fully highlighted
   onDeselected: (Element) {}, // Called when element has been deselected
-  onReset: (Element) {},      // Called when overlay is about to be cleared
+  onReset: (Element) {},        // Called when overlay is about to be cleared
+  onNext: (Element) => {},      // Called when moving to next step on any step
+  onPrevious: (Element) => {},  // Called when moving to next step on any step
 });
 </code></pre>
     </div>

src/index.js

@@ -48,14 +48,18 @@ export default class Driver {
     this.document = document;
     this.window = window;
     this.isActivated = false;
-    this.steps = [];            // steps to be presented if any
-    this.currentStep = 0;       // index for the currently highlighted step
+    this.steps = [];                    // steps to be presented if any
+    this.currentStep = 0;               // index for the currently highlighted step
+    this.currentMovePrevented = false;  // If the current move was prevented
 
     this.overlay = new Overlay(this.options, window, document);
 
     this.onResize = this.onResize.bind(this);
     this.onKeyUp = this.onKeyUp.bind(this);
     this.onClick = this.onClick.bind(this);
+    this.moveNext = this.moveNext.bind(this);
+    this.movePrevious = this.movePrevious.bind(this);
+    this.preventMove = this.preventMove.bind(this);
 
     // Event bindings
     this.bind();
@@ -91,7 +95,7 @@ export default class Driver {
     const clickedPopover = popover && popover.contains(e.target);
 
     if (!clickedHighlightedElement && !clickedPopover && this.options.overlayClickNext) {
-      this.moveNext();
+      this.handleNext();
       return;
     }
 
@@ -111,9 +115,9 @@ export default class Driver {
     }
 
     if (nextClicked) {
-      this.moveNext();
+      this.handleNext();
     } else if (prevClicked) {
-      this.movePrevious();
+      this.handlePrevious();
     }
   }
 
@@ -151,9 +155,9 @@ export default class Driver {
     // Arrow keys to only perform if it is stepped introduction
     if (this.steps.length !== 0) {
       if (event.keyCode === RIGHT_KEY_CODE) {
-        this.moveNext();
+        this.handleNext();
       } else if (event.keyCode === LEFT_KEY_CODE) {
-        this.movePrevious();
+        this.handlePrevious();
       }
     }
   }
@@ -164,21 +168,63 @@ export default class Driver {
    * @public
    */
   movePrevious() {
-    const currentStep = this.steps[this.currentStep];
     const previousStep = this.steps[this.currentStep - 1];
-
     if (!previousStep) {
       this.reset();
       return;
     }
 
-    // If there is an event binding on the current step
+    this.overlay.highlight(previousStep);
+    this.currentStep -= 1;
+  }
+
+  /**
+   * Prevents the current move. Useful in `onNext` if you want to
+   * perform some asynchronous task and manually move to next step
+   * @public
+   */
+  preventMove() {
+    this.currentMovePrevented = true;
+  }
+
+  /**
+   * Handles the internal "move to next" event
+   * @private
+   */
+  handleNext() {
+    this.currentMovePrevented = false;
+
+    // Call the bound `onNext` handler if available
+    const currentStep = this.steps[this.currentStep];
+    if (currentStep.options.onNext) {
+      currentStep.options.onNext(this.overlay.highlightedElement);
+    }
+
+    if (this.currentMovePrevented) {
+      return;
+    }
+
+    this.moveNext();
+  }
+
+  /**
+   * Handles the internal "move to previous" event
+   * @private
+   */
+  handlePrevious() {
+    this.currentMovePrevented = false;
+
+    // Call the bound `onPrevious` handler if available
+    const currentStep = this.steps[this.currentStep];
     if (currentStep.options.onPrevious) {
-      currentStep.options.onPrevious();
+      currentStep.options.onPrevious(this.overlay.highlightedElement);
     }
 
-    this.overlay.highlight(previousStep);
-    this.currentStep -= 1;
+    if (this.currentMovePrevented) {
+      return;
+    }
+
+    this.movePrevious();
   }
 
   /**
@@ -187,19 +233,12 @@ export default class Driver {
    * @public
    */
   moveNext() {
-    const currentStep = this.steps[this.currentStep];
     const nextStep = this.steps[this.currentStep + 1];
-
     if (!nextStep) {
       this.reset();
       return;
     }
 
-    // If there is an event binding on the current step
-    if (currentStep.options.onNext) {
-      currentStep.options.onNext();
-    }
-
     this.overlay.highlight(nextStep);
     this.currentStep += 1;
   }

types/index.d.ts

@@ -15,6 +15,12 @@ declare module 'driver.js' {
      */
     public isActivated: boolean;
 
+    /**
+     * Flag for if the current move was prevented. It is used in
+     * onNext() or onPrevious() callbacks to stop the current transition
+     */
+    private currentMovePrevented: boolean;
+
     /**
      * Refers to the array of steps to be presented if any
      */
@@ -25,6 +31,11 @@ declare module 'driver.js' {
      */
     private currentStep: number;
 
+    /**
+     * Flag for if the current move was prevented or not
+     */
+    private currentMovePrevented: boolean;
+
     /**
      * Refers to the overlay for the screen
      */
@@ -59,6 +70,22 @@ declare module 'driver.js' {
      */
     private onKeyUp(e: Event): void;
 
+    /**
+     * Handles the internal next event
+     */
+    private handleNext(): void;
+
+    /**
+     * Handles the internal previous event
+     */
+    private handlePrevious(): void;
+
+    /**
+     * Prevents the current move. Useful in `onNext` if you want to
+     * perform some asynchronous task and manually move to next step
+     */
+    public preventMove(): void;
+
     /**
      * Moves to the previous step if possible
      * otherwise resets the overlay
@@ -71,6 +98,12 @@ declare module 'driver.js' {
      */
     public moveNext(): void;
 
+    /**
+     * Prevents the current move. Useful in `onNext` if you want to
+     * perform some asynchronous task and manually move to next step
+     */
+    preventMove(): void;
+
     /**
      * Checks if can be moved to next step
      * @return {boolean}
@@ -154,12 +187,12 @@ declare module 'driver.js' {
       /**
        * Is called when the next element is about to be highlighted
        */
-      onNext?: () => void,
+      onNext?: (element: Driver.Element) => void;
 
       /**
        * Is called when the previous element is about to be highlighted
        */
-      onPrevious?: () => void,
+      onPrevious?: (element: Driver.Element) => void;
     }
 
     class Element {
@@ -732,12 +765,12 @@ declare module 'driver.js' {
       /**
        * Is called when the next element is about to be highlighted
        */
-      onNext?: () => void,
+      onNext?: (element: Driver.Element) => void;
 
       /**
        * Is called when the previous element is about to be highlighted
        */
-      onPrevious?: () => void,
+      onPrevious?: (element: Driver.Element) => void;
     }
 
     interface ElementOptions extends Driver.DriverOptions {