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|
(function () {
'use strict';
const SETTING_KEY = 'cssMap'
const RAND = (Math.random() * 100000).toFixed(0)
const debug = function (...args) {
if (GM_getValue('debug', 'false') === 'true') {
console.log(...args)
}
}
const on = function (eventName, selector, handler) {
document.addEventListener(eventName, function (e) {
for (let target = e.target; target && target !== this; target = target.parentNode) {
if (target.matches !== undefined && target.matches(selector)) {
handler.call(target, e);
break;
}
if (target.tagName === 'HTML') {
break;
}
}
}, false);
}
debug('Hello, Inject CSS.')
function start() {
const cssMap = cssValue()
const html = document.getElementsByTagName('html')[0]
const inject = `<div id="inject-watermark-${RAND}" class="inject-watermark"></div><style>
#inject-watermark-${RAND} {
position: fixed;
left: 0;
top: 0;
right: 0;
bottom: 0;
z-index: 1;
pointer-events: none;
}
#inject-css-${RAND} {
display: none;
position: fixed;
left: 0;
top: 0;
right: 0;
bottom: 0;
z-index: 999;
background-color: rgba(0,0,0,.8);
justify-content: center;
align-items: center;
font-size: 16px;
}
#inject-css-setting {
max-height: 100%;
overflow: auto;
color: #000;
}
#inject-css-setting button {
border: 1px solid #ccc;
background-color: #fff;
cursor: pointer;
padding: .5em;
border-top-left-radius: 5px;
border-top-right-radius: 5px;
}
#inject-css-setting table {
border-collapse: collapse;
background-color: #fff;
}
#inject-css-setting th, #inject-css-setting td {
border: 1px solid #ccc;
padding: .5em;
max-width: 50vw;
overflow: auto;
}
#inject-css-setting tr.active {
font-weight: bold;
}
#inject-css-setting td.active:after {
content: ' ⭐️';
}
#inject-css-setting tr:nth-child(even) {
background-color: #f2f2f2;
}
#inject-css-setting tr:hover {
background-color: #ddd;
}
#inject-css-setting .inject-css-delete,#inject-css-setting .inject-css-add {
width: 100%;
border-radius: 5px;
}
</style><div id="inject-css-${RAND}"></div>`
html.insertAdjacentHTML('beforeend', inject)
const wrapper = document.getElementById(`inject-css-${RAND}`)
GM_registerMenuCommand('Settings|设置', function (e) {
debug('Settings', e)
wrapper.style.display = 'flex'
}, 's')
render(cssMap, wrapper)
on('click', '.inject-css-delete', function (e) {
const deleteKey = e.target.dataset.key
cssMap.delete(deleteKey)
save(cssMap)
render(cssMap, wrapper)
})
on('click', '.inject-css-add', function (e) {
e.preventDefault()
const k = document.querySelector('#inject-css-url').value.trim()
const v = document.querySelector('#inject-css-value').value.trim()
if (k !== '' && v !== '') {
try {
new RegExp(k)
} catch (e) {
alert('`' + k + '`: 不是有效的正则表达式. error=' + e)
return
}
cssMap.set(k, v)
save(cssMap)
render(cssMap, wrapper)
}
})
on('click', '.inject-css-hide', function () {
wrapper.style.display = 'none'
})
on('keyup', 'html', function (e) {
if (e.code === 'Escape') {
wrapper.style.display = 'none'
}
}
)
document.querySelector('.inject-css-hide').click()
}
function cssValue() {
const settingValue = GM_getValue(SETTING_KEY, '{}');
debug('setting value:', settingValue)
let cssMap = JSON.parse(settingValue)
cssMap = new Map(Object.entries(cssMap))
return cssMap
}
function save(cssMap) {
const s = JSON.stringify(Object.fromEntries(cssMap));
GM_setValue(SETTING_KEY, s)
debug('saved', s, 'get:', cssValue())
}
function render(cssMap, wrapper) {
const url = window.location.href
debug('cssMap:', cssMap, 'url:', url)
let injectCss = ``
let tableBody = ''
for (const entry of cssMap) {
try {
let active = ''
if (new RegExp(entry[0]).test(url)) {
injectCss += entry[1] + "\n"
active = 'active'
}
tableBody += `<tr class="${active}"><td class="${active}"><code>${entry[0]}</code></td><td><pre>${entry[1]}</pre></td><td><button data-key="${entry[0]}" class="inject-css-delete">-</button></td></tr>`
} catch (e) {
debug('regexp error', e)
cssMap.delete(entry[0])
}
}
wrapper.innerHTML = `<style>${injectCss}</style><div id="inject-css-setting"><button class="inject-css-hide">关闭(Esc)</button>
<table><tbody><tr><th>URL 正则</th><th>注入 CSS</th><th>操作</th></tr>
${tableBody}
<tr><td><label><input type="text" id="inject-css-url" placeholder="点号斜线记得转义"></label></td>
<td><textarea id="inject-css-value" cols="30" rows="3" placeholder="html { background-color: #ccc; }"></textarea></td>
<td><button class="inject-css-add">+</button></td></tr>
</tbody></table></div>`
}
setTimeout(start, 2000)
})();
|
