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-1 : 1; this.glare = this.isSettingTrue(this.settings.glare); this.glarePrerender = this.isSettingTrue(this.settings["glare-prerender"]); if (this.glare) { this.prepareGlare(); } this.addEventListeners(); } isSettingTrue(setting) { return setting === "" || setting === true || setting === 1; } /** * Method returns element what will be listen mouse events * @return {Node} */ getElementListener() { if (!this.settings || !this.settings["mouse-event-element"]) { return this.element; } if (typeof this.settings["mouse-event-element"] === "string") { const mouseEventElement = document.querySelector(this.settings["mouse-event-element"]); if (mouseEventElement) { return mouseEventElement; } } if (this.settings["mouse-event-element"] instanceof Node) { return this.settings["mouse-event-element"]; } } /** * Method set listen methods for this.elementListener * @return {Node} */ addEventListeners() { this.onMouseEnterBind = this.onMouseEnter.bind(this); this.onMouseMoveBind = this.onMouseMove.bind(this); this.onMouseLeaveBind = this.onMouseLeave.bind(this); this.onWindowResizeBind = this.onWindowResize.bind(this); this.onDeviceOrientationBind = this.onDeviceOrientation.bind(this); this.elementListener.addEventListener("mouseenter", this.onMouseEnterBind); this.elementListener.addEventListener("mousemove", this.onMouseMoveBind); this.elementListener.addEventListener("mouseleave", this.onMouseLeaveBind); window.addEventListener("deviceorientation", this.onDeviceOrientationBind); if (this.glare) { window.addEventListener("resize", this.onWindowResizeBind); } } /** * Method remove event listeners from current this.elementListener */ removeEventListeners() { this.elementListener.removeEventListener("mouseenter", this.onMouseEnterBind); this.elementListener.removeEventListener("mousemove", this.onMouseMoveBind); this.elementListener.removeEventListener("mouseleave", this.onMouseLeaveBind); window.removeEventListener("deviceorientation", this.onDeviceOrientationBind); if (this.glare) { window.removeEventListener("resize", this.onWindowResizeBind); } } destroy() { clearTimeout(this.transitionTimeout); if (this.updateCall !== null) { cancelAnimationFrame(this.updateCall); } this.reset(); this.removeEventListeners(); this.element.vanillaTilt = null; delete this.element.vanillaTilt; this.element = null; } onDeviceOrientation(event) { if (event.gamma === null || event.beta === null) { return; } this.updateElementPosition(); const totalAngleX = this.settings.gyroscopeMaxAngleX - this.settings.gyroscopeMinAngleX; const totalAngleY = this.settings.gyroscopeMaxAngleY - this.settings.gyroscopeMinAngleY; const degreesPerPixelX = totalAngleX / this.width; const degreesPerPixelY = totalAngleY / this.height; const angleX = event.gamma - this.settings.gyroscopeMinAngleX; const angleY = event.beta - this.settings.gyroscopeMinAngleY; const posX = angleX / degreesPerPixelX; const posY = angleY / degreesPerPixelY; if (this.updateCall !== null) { cancelAnimationFrame(this.updateCall); } this.event = { clientX: posX + this.left, clientY: posY + this.top, }; this.updateCall = requestAnimationFrame(this.updateBind); } onMouseEnter() { this.updateElementPosition(); this.element.style.willChange = "transform"; this.setTransition(); } onMouseMove(event) { if (this.updateCall !== null) { cancelAnimationFrame(this.updateCall); } this.event = event; this.updateCall = requestAnimationFrame(this.updateBind); } onMouseLeave() { this.setTransition(); if (this.settings.reset) { requestAnimationFrame(this.resetBind); } } reset() { this.event = { pageX: this.left + this.width / 2, pageY: this.top + this.height / 2 }; if (this.element && this.element.style) { this.element.style.transform = `perspective(${this.settings.perspective}px) ` + `rotateX(0deg) ` + `rotateY(0deg) ` + `scale3d(1, 1, 1)`; } if (this.glare) { this.glareElement.style.transform = "rotate(180deg) translate(-50%, -50%)"; this.glareElement.style.opacity = "0"; } } getValues() { let x = (this.event.clientX - this.left) / this.width; let y = (this.event.clientY - this.top) / this.height; x = Math.min(Math.max(x, 0), 1); y = Math.min(Math.max(y, 0), 1); let tiltX = (this.reverse * (this.settings.max / 2 - x * this.settings.max)).toFixed(2); let tiltY = (this.reverse * (y * this.settings.max - this.settings.max / 2)).toFixed(2); let angle = Math.atan2(this.event.clientX - (this.left + this.width / 2), -(this.event.clientY - (this.top + this.height / 2))) * (180 / Math.PI); return { tiltX: tiltX, tiltY: tiltY, percentageX: x * 100, percentageY: y * 100, angle: angle }; } updateElementPosition() { let rect = this.element.getBoundingClientRect(); this.width = this.element.offsetWidth; this.height = this.element.offsetHeight; this.left = rect.left; this.top = rect.top; } update() { let values = this.getValues(); this.element.style.transform = "perspective(" + this.settings.perspective + "px) " + "rotateX(" + (this.settings.axis === "x" ? 0 : values.tiltY) + "deg) " + "rotateY(" + (this.settings.axis === "y" ? 0 : values.tiltX) + "deg) " + "scale3d(" + this.settings.scale + ", " + this.settings.scale + ", " + this.settings.scale + ")"; if (this.glare) { this.glareElement.style.transform = `rotate(${values.angle}deg) translate(-50%, -50%)`; this.glareElement.style.opacity = `${values.percentageY * this.settings["max-glare"] / 100}`; } this.element.dispatchEvent(new CustomEvent("tiltChange", { "detail": values })); this.updateCall = null; } /** * Appends the glare element (if glarePrerender equals false) * and sets the default style */ prepareGlare() { // If option pre-render is enabled we assume all html/css is present for an optimal glare effect. if (!this.glarePrerender) { // Create glare element const jsTiltGlare = document.createElement("div"); jsTiltGlare.classList.add("js-tilt-glare"); const jsTiltGlareInner = document.createElement("div"); jsTiltGlareInner.classList.add("js-tilt-glare-inner"); jsTiltGlare.appendChild(jsTiltGlareInner); this.element.appendChild(jsTiltGlare); } this.glareElementWrapper = this.element.querySelector(".js-tilt-glare"); this.glareElement = this.element.querySelector(".js-tilt-glare-inner"); if (this.glarePrerender) { return; } Object.assign(this.glareElementWrapper.style, { "position": "absolute", "top": "0", "left": "0", "width": "100%", "height": "100%", "overflow": "hidden", "pointer-events": "none" }); Object.assign(this.glareElement.style, { "position": "absolute", "top": "50%", "left": "50%", "pointer-events": "none", "background-image": `linear-gradient(0deg, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 100%)`, "width": `${this.element.offsetWidth * 2}px`, "height": `${this.element.offsetWidth * 2}px`, "transform": "rotate(180deg) translate(-50%, -50%)", "transform-origin": "0% 0%", "opacity": "0", }); } updateGlareSize() { Object.assign(this.glareElement.style, { "width": `${this.element.offsetWidth * 2}`, "height": `${this.element.offsetWidth * 2}`, }); } onWindowResize() { this.updateGlareSize(); } setTransition() { clearTimeout(this.transitionTimeout); this.element.style.transition = this.settings.speed + "ms " + this.settings.easing; if (this.glare) this.glareElement.style.transition = `opacity ${this.settings.speed}ms ${this.settings.easing}`; this.transitionTimeout = setTimeout(() => { this.element.style.transition = ""; if (this.glare) { this.glareElement.style.transition = ""; } }, this.settings.speed); } /** * Method return patched settings of instance * @param {boolean} settings.reverse - reverse the tilt direction * @param {number} settings.max - max tilt rotation (degrees) * @param {number} settings.perspective - Transform perspective, the lower the more extreme the tilt gets * @param {string} settings.easing - Easing on enter/exit * @param {number} settings.scale - 2 = 200%, 1.5 = 150%, etc.. * @param {number} settings.speed - Speed of the enter/exit transition * @param {boolean} settings.transition - Set a transition on enter/exit * @param settings.axis - What axis should be disabled. Can be X or Y * @param {boolean} settings.glare - What axis should be disabled. Can be X or Y * @param {number} settings.max-glare - the maximum "glare" opacity (1 = 100%, 0.5 = 50%) * @param {boolean} settings.glare-prerender - false = VanillaTilt creates the glare elements for you, otherwise * @param {string|object} settings.mouse-event-element - String selector or link to HTML-element what will be listen mouse events * @param {boolean} settings.reset - false = If the tilt effect has to be reset on exit * @param {gyroscope} settings.gyroscope - Enable tilting by deviceorientation events * @param {gyroscopeSensitivity} settings.gyroscopeSensitivity - Between 0 and 1 - The angle at which max tilt position is reached. 1 = 90deg, 0.5 = 45deg, etc.. */ extendSettings(settings) { let defaultSettings = { reverse: false, max: 35, perspective: 1000, easing: "cubic-bezier(.03,.98,.52,.99)", scale: 1, speed: 300, transition: true, axis: null, glare: false, "max-glare": 1, "glare-prerender": false, "mouse-event-element": null, reset: true, gyroscope: true, gyroscopeMinAngleX: -45, gyroscopeMaxAngleX: 45, gyroscopeMinAngleY: -45, gyroscopeMaxAngleY: 45, }; let newSettings = {}; for (var property in defaultSettings) { if (property in settings) { newSettings[property] = settings[property]; } else if (this.element.hasAttribute("data-tilt-" + property)) { let attribute = this.element.getAttribute("data-tilt-" + property); try { newSettings[property] = JSON.parse(attribute); } catch (e) { newSettings[property] = attribute; } } else { newSettings[property] = defaultSettings[property]; } } return newSettings; } static init(elements, settings) { if (elements instanceof Node) { elements = [elements]; } if (elements instanceof NodeList) { elements = [].slice.call(elements); } if (!(elements instanceof Array)) { return; } elements.forEach((element) => { if (!("vanillaTilt" in element)) { element.vanillaTilt = new VanillaTilt(element, settings); } }); } } if (typeof document !== "undefined") { /* expose the class to window */ window.VanillaTilt = VanillaTilt; /** * Auto load */ VanillaTilt.init(document.querySelectorAll("[data-tilt]")); } return VanillaTilt; }());