I have this code where the header slides up on scroll down and slides down on scroll up. The problem is if there's a page that doesn't scroll, the navigation goes away on scroll even though the page is not tall enough to scroll. Write JS for Vue2 that checks if the page is tall enough. If its not tall enough, then disable the navigation going away. If its tall enough and scrollable, then enable the slide up/down. Here's the code to edit:





 export default {
 props: ['fullLogo'],
 data() {
 return {
 navTranslateY: 0,
 previousScrollY: 0,
 windowWidth: 0
 };
 },
 mounted() {
 this.windowWidth = window.innerWidth;
 window.addEventListener("resize", this.handleResize);
 window.addEventListener("scroll", this.handleScroll);
 },
 beforeDestroy() {
 window.removeEventListener("resize", this.handleResize);
 window.removeEventListener("scroll", this.handleScroll);
 },
 methods: {
 handleResize() {
 this.windowWidth = window.innerWidth;
 },
 handleScroll() {
 if (window.scrollY > this.previousScrollY && this.windowWidth >= 1024) {
 this.navTranslateY = -200;
 } else {
 this.navTranslateY = 0;
 }
 this.previousScrollY = window.scrollY;
 }
 }
 }
user
Sure, I can help you with this. Here is a Vue.js `mounted()` method that checks if the page is tall enough. If the screen's width is 1024 or more, meaning it's large enough to display fixed-position elements, and the window's scroll height is less than the viewport's height (i.e., it can be fully scrolled), then the `navTranslateY` property is set to 0. Otherwise, it's set to -200 or any other negative value that you prefer.

```
export default {
  props: ['fullLogo'],
  data() {
    return {
      navTranslateY: 0,
      previousScrollY: 0,
      windowWidth: 0
    };
  },
  mounted() {
    this.windowWidth = window.innerWidth;
    window.addEventListener('resize', this.handleResize);

    // Check if the page is tall enough
    if (this.windowWidth >= 1024 && document.documentElement.scrollHeight < window.innerHeight) {
      this.navTranslateY = 0;
    } else {
      this.navTranslateY = -200;
    }

    window.addEventListener('scroll', this.handleScroll);
  },
  beforeDestroy() {
    window.removeEventListener('resize', this.handleResize);
    window.removeEventListener('scroll', this.handleScroll);
  },
  methods: {
    handleResize() {
      this.windowWidth = window.innerWidth;

      // Check if the page is tall enough
      if (this.windowWidth >= 1024 && document.documentElement.scrollHeight < window.innerHeight) {
        this.navTranslateY = 0;
      } else {
        this.navTranslateY = -200;
      }
    },
    handleScroll() {
      // Handle scrolling, but only if the nav is visible
      if (this.navTranslateY === 0) {
        if (window.scrollY > this.previousScrollY && this.windowWidth >= 1024) {
          this.navTranslateY = -200;
        } else {
          this.navTranslateY = 0;
        }
        this.previousScrollY = window.scrollY;
      }
    }
  }
};
```

This code assumes that you're using jQuery's `animate()` or CSS's `transition` property to slide the navigation. If you're using any other library, adjust the code accordingly. Also, please note that this method calculates the scroll height relatively, so it might not work perfectly if you're using a custom scroll event.
assistant
I have this code where the header slides up on scroll down and slides down on scroll up. The problem is if there's a page that doesn't scroll, the navigation goes away on scroll even though the page is not tall enough to scroll. Write JS for Vue2 that checks if the page is tall enough. If its not tall enough, then disable the navigation going away. If its tall enough and scrollable, then enable the slide up/down. Here's the code to edit:





 export default {
 props: ['fullLogo'],
 data() {
 return {
 navTranslateY: 0,
 previousScrollY: 0,
 windowWidth: 0
 };
 },
 mounted() {
 this.windowWidth = window.innerWidth;
 window.addEventListener("resize", this.handleResize);
 window.addEventListener("scroll", this.handleScroll);
 },
 beforeDestroy() {
 window.removeEventListener("resize", this.handleResize);
 window.removeEventListener("scroll", this.handleScroll);
 },
 methods: {
 handleResize() {
 this.windowWidth = window.innerWidth;
 },
 handleScroll() {
 if (window.scrollY > this.previousScrollY && this.windowWidth >= 1024) {
 this.navTranslateY = -200;
 } else {
 this.navTranslateY = 0;
 }
 this.previousScrollY = window.scrollY;
 }
 }
 }
user
Sure, I can help you modify your code to check if the page is tall enough before enabling the slide up/down functionality. Here's how you can do it:

```javascript
export default {
 props: ['fullLogo'],
 data() {
 return {
 navTranslateY: 0,
 previousScrollY: 0,
 windowWidth: 0,
 pageHeight: 0,
 windowHeight: 0,
 };
 },
 mounted() {
 this.windowWidth = window.innerWidth;
 this.windowHeight = window.innerHeight;
 this.pageHeight = document.documentElement.scrollHeight;
 window.addEventListener("resize", this.handleResize);
 window.addEventListener("scroll", this.handleScroll);
 },
 beforeDestroy() {
 window.removeEventListener("resize", this.handleResize);
 window.removeEventListener("scroll", this.handleScroll);
 },
 methods: {
 handleResize() {
 this.windowWidth = window.innerWidth;
 this.windowHeight = window.innerHeight;
 this.pageHeight = document.documentElement.scrollHeight;
 },
 handleScroll() {
   if (this.pageHeight > this.windowHeight) {
     if (window.scrollY > this.previousScrollY && this.windowWidth >= 1024) {
       this.navTranslateY = -200;
     } else {
       this.navTranslateY = 0;
     }
   }
   this.previousScrollY = window.scrollY;
 }
 }
}
```

In this code, `pageHeight` is the total height of the page, and `windowHeight` is the height of the viewport. We compare these two values to determine if the page is tall enough to scroll. If the page is taller than the viewport, we enable the slide up/down functionality; otherwise, we disable it.
assistant