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feat(button): add 'comment' fixed button (#169)

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This commit is contained in:
Dillon
2020-03-16 15:01:51 +08:00
committed by GitHub
parent 371150ceef
commit 6e091b6fad
9 changed files with 51 additions and 32 deletions
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36
src/js/theme.js
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@@ -248,7 +248,17 @@
header.classList.add('animated');
header.classList.add('faster');
});
const toTopButton = document.getElementById('dynamic-to-top');
const comments = document.getElementsByClassName('comment') || [];
if (comments.length) {
const container = document.getElementById('fixed-btn-container');
const button = document.createElement('a');
button.href = `#${comments[0].id}`;
button.id = 'comment-button';
button.className = 'fixed-button animated faster';
button.innerHTML = '<i class="fas fa-comment fa-fw"></i>';
container.appendChild(button);
}
const buttons = document.getElementsByClassName('fixed-button');
const MIN_SCROLL = 10;
window.addEventListener('scroll', () => {
this.newScrollTop = this.util.getScrollTop();
@@ -262,18 +272,20 @@
header.classList.add('fadeInDown');
}
});
if (this.newScrollTop > 200) {
if (scroll > MIN_SCROLL) {
toTopButton.classList.remove('fadeIn');
toTopButton.classList.add('fadeOut');
} else if (scroll < - MIN_SCROLL) {
toTopButton.style.display = 'block';
toTopButton.classList.remove('fadeOut');
toTopButton.classList.add('fadeIn');
this.util.forEach(buttons, (button) => {
if (this.newScrollTop > 20) {
if (scroll > MIN_SCROLL) {
button.classList.remove('fadeIn');
button.classList.add('fadeOut');
} else if (scroll < - MIN_SCROLL) {
button.style.display = 'block';
button.classList.remove('fadeOut');
button.classList.add('fadeIn');
}
} else {
button.style.display = 'none';
}
} else {
toTopButton.style.display = 'none';
}
});
if (!this._scrollTimeout) {
this._scrollTimeout = window.setTimeout(() => {
this._scrollTimeout = null;