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优化 [默认收起回答] 和 [一键收起回答] 功能 (#70)

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This commit is contained in:
liangjiancang
2021-08-13 19:36:23 +08:00
committed by GitHub
parent 354fc59b32
commit a0c56a107e
1 changed files with 67 additions and 23 deletions
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Zhihu-Enhanced.user.js
+67 -23
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@@ -87,24 +87,53 @@ function menu_value(menuName) {
}
// 添加收器回答观察器
function getCollapsedAnswerObserver() {
if (!window._collapsedAnswerObserver) {
const ob = new MutationObserver(mutations => {
for (const mutation of mutations) {
if (mutation.target.hasAttribute('script-collapsed')) return
if (!mutation.target.classList.contains('RichContent')) continue
for (const addedNode of mutation.addedNodes) {
if (addedNode.nodeType != Node.ELEMENT_NODE) continue
const button = addedNode.querySelector('.ContentItem-actions.Sticky [data-zop-retract-question]')
if (button) {
mutation.target.setAttribute('script-collapsed', '')
button.click()
return
}
}
}
})
ob.start = function() {
if (!this._active) {
this.observe(document, { childList: true, subtree: true })
this._active = true
}
}
ob.end = function() {
if (this._active) {
this.disconnect()
}
}
window.addEventListener('locationchange', function() {
ob[window.location.href.indexOf('answer') == -1 ? 'start' : 'end']()
})
window._collapsedAnswerObserver = ob
}
return window._collapsedAnswerObserver
}
// 默认收起回答
function defaultCollapsedAnswer() {
if (!menu_value('menu_defaultCollapsedAnswer')) return
(new MutationObserver(mutations => {
for (const mutation of mutations) {
if (!mutation.target.classList.contains('RichContent')) continue
for (const addedNode of mutation.addedNodes) {
if (mutation.target._defaultCollapsed) return
if (addedNode.nodeType != Node.ELEMENT_NODE) continue
const button = addedNode.querySelector('.ContentItem-actions.Sticky [data-zop-retract-question]')
if (button) {
mutation.target._defaultCollapsed = true
button.click()
return
}
}
}
})).observe(document, { childList: true, subtree: true })
const ob = getCollapsedAnswerObserver()
if (window.location.href.indexOf('answer') == -1) {
ob.start()
}
}
@@ -115,15 +144,30 @@ function collapsedAnswer() {
document.head.appendChild(document.createElement('style')).textContent = '.CornerButton{margin-bottom:8px !important;}.CornerButtons{bottom:45px !important;}';
document.querySelector('.CornerAnimayedFlex').insertAdjacentHTML('afterBegin', '<button id="collapsed-button" data-tooltip="收起全部回答" data-tooltip-position="left" data-tooltip-will-hide-on-click="false" aria-label="收起全部回答" type="button" class="Button CornerButton Button--plain"><svg class="ContentItem-arrowIcon is-active" aria-label="收起全部回答" fill="currentColor" viewBox="0 0 24 24" width="24" height="24"><path d="M16.036 19.59a1 1 0 0 1-.997.995H9.032a.996.996 0 0 1-.997-.996v-7.005H5.03c-1.1 0-1.36-.633-.578-1.416L11.33 4.29a1.003 1.003 0 0 1 1.412 0l6.878 6.88c.782.78.523 1.415-.58 1.415h-3.004v7.005z"></path></svg></button>');
document.getElementById('collapsed-button').onclick = function () {
document.querySelectorAll('.RichContent').forEach(function (el) {
if (el.querySelector('.RichContent-inner').offsetHeight > 400) {
const button = el.querySelector('.ContentItem-rightButton[data-zop-retract-question]')
if (button) {
el._defaultCollapsed = true
button.click()
}
document.querySelectorAll('[script-collapsed]').forEach(function(scriptCollapsed) {
scriptCollapsed.querySelectorAll('.ContentItem-actions [data-zop-retract-question], .ContentItem-actions.Sticky [data-zop-retract-question]').forEach(function(button) {
button.click()
})
})
document.querySelectorAll(':not([script-collapsed]) .ContentItem-actions.Sticky [data-zop-retract-question]').forEach(function(button) {
let el = button.parentElement
while (!el?.classList.contains('RichContent')) {
el = el.parentElement
}
});
if (el) {
el.setAttribute('script-collapsed', '')
}
button.click()
})
const ob = getCollapsedAnswerObserver()
ob.start()
if (!menu_value('menu_defaultCollapsedAnswer') && !ob._disconnectListener) {
window.addEventListener('locationchange', function() {
ob.end()
window._collapsedAnswerObserver = null
})
ob._disconnectListener = true
}
}
}
}