Typesetting the contents of the clipboard
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// ==UserScript==
// @name Latex_Automatic Formatting
// @namespace http://tampermonkey.net/
// @version v0.59
// @description Typesetting the contents of the clipboard
// @author Mozikiy
// @match http://annot.xhanz.cn/project/*/*
// @icon https://www.latex-project.org/favicon.ico
// @license GNU GPLv3
// @grant none
// ==/UserScript==
(function () {
'use strict';
// createMenu
const createMenu = (text, x, y) => {
// remove existingMenu
const existingMenu = document.getElementById('custom-context-menu');
if (existingMenu) existingMenu.remove();
// create menu
const menu = document.createElement('div');
menu.id = 'custom-context-menu';
menu.style.position = 'absolute';
menu.style.top = `${y}px`;
menu.style.left = `${x}px`;
menu.style.background = '#fff';
menu.style.border = '1px solid #ccc';
menu.style.boxShadow = '0px 2px 5px rgba(0,0,0,0.3)';
menu.style.padding = '10px';
menu.style.zIndex = '9999';
menu.style.fontSize = '14px';
// Detect selected text
const selectedText = window.getSelection().toString().trim();
// options
const options = selectedText
? [
{ label: 'copy(text)', action: () => copyToClipboard1(selectedText) },
{ label: 'add$', action: () => copyToClipboard4(selectedText) },
{ label: 'sub$', action: () => copyToClipboard3(selectedText) },
{ label: '$to$$', action: () => copyToClipboard5(selectedText) },
{ label: 'formula', action: () => copyToClipboard6(selectedText) },
]
: [{ label: 'fill', action: () => copyToClipboard2() }];
// add menu
options.forEach(opt => {
const item = document.createElement('div');
item.innerText = opt.label;
item.style.padding = '5px';
item.style.cursor = 'pointer';
item.style.transition = 'background-color 0.2s ease';
// Highlight on hover
item.addEventListener('mouseover', () => {
item.style.backgroundColor = '#f0f0f0'; // Highlight color
});
item.addEventListener('mouseout', () => {
item.style.backgroundColor = ''; // Reset to default
});
item.addEventListener('click', () => {
opt.action();
menu.remove();
});
menu.appendChild(item);
});
document.addEventListener('click', () => menu.remove(), { once: true });
document.body.appendChild(menu);
};
// Event listener to trigger menu on right-click
document.addEventListener('contextmenu', e => {
e.preventDefault();
const text = window.getSelection().toString().trim();
createMenu(text, e.pageX, e.pageY);
});
// copy text to clipboard
const copyToClipboard1 = text => {
const convertPunctuation = text => {
text = text.replace(/,/g, ', ');
text = text.replace(/\./g, '. ');
text = text.replace(/，/g, ', ');
text = text.replace(/。/g, '. ');
text = text.replace(/>/g, '>');
text = text.replace(/</g, '<');
text = text.replace(/, \$/g, '$, ');
text = text.replace(/\. \$/g, '$. ');
text = text.replace(/λ/g, '$\\lambda$');
text = text.replace(/α/g, '$\\alpha$');
text = text.replace(/β/g, '$\\beta$');
text = text.replace(/γ/g, '$\\gamma$');
text = text.replace(/ρ/g, '$\\rho$');
text = text.replace(/σ/g, '$\\sigma$');
text = text.replace(/θ/g, '$\\sigma$');
text = text.replace(/δ/g, '$\\delta$');
text = text.replace(/φ/g, '$\\varphi$');
text = text.replace(/：/g, ': ');
text = text.replace(/⋯/g, '\\cdots');
// text = text.replace(/x,/g, '$x$,');
text = text.replace(/\|/g, '\\vert');
text = text.replace(/\. \$/g, '$. ');
text = text.replace(/, \$/g, '$, ');
text = text.replace(/,,/g, ', ');
text = text.replace(/\.\./g, '. ');
text = text.replace(/, ,/g, ', ');
text = text.replace(/\. \./g, '. ');
text = text.replace(/（/g, '(');
text = text.replace(/）/g, ')');
text = text.replace(/［/g, '[');
text = text.replace(/］/g, ']');
text = text.replace(/C02/g, '$CO_2$');
text = text.replace(/H2O/g, '$H_2O$');
text = text.replace(/CO2/g, '$CO_2$');
text = text.replace(/H20/g, '$H_2O$');
return text;
};
const processText = inputText => {
return inputText
.split('\n') // 按行分割
.map(line => convertPunctuation(line)) // 处理每行
.join('\n'); // 重新组合为文本
};
const processedText = processText(text);
if (navigator.clipboard && navigator.clipboard.writeText) {
// 如果支持 navigator.clipboard API
navigator.clipboard.writeText(processedText).then(() => {
console.log(`Copied using clipboard API: ${processedText}`);
}).catch(err => {
console.error('Clipboard API failed, falling back to execCommand.', err);
fallbackCopyText(processedText); // 回退到兼容方法
});
} else {
// 使用后备方法
fallbackCopyText(processedText);
}
};
const copyToClipboard2 = () => {
const placeholder = '$\\underline { \\hspace{1cm} }$';
// 获取当前活动的输入框或文本区域
const activeElement = document.activeElement;
if (activeElement && (activeElement.tagName === 'TEXTAREA' || activeElement.tagName === 'INPUT')) {
const start = activeElement.selectionStart;
const end = activeElement.selectionEnd;
const currentValue = activeElement.value;
// 在光标位置插入占位符
activeElement.value = currentValue.slice(0, start) + placeholder + currentValue.slice(end);
// 将光标移动到占位符后
activeElement.selectionStart = activeElement.selectionEnd = start + placeholder.length;
// 触发输入事件，确保应用绑定的事件监听器能够响应
activeElement.dispatchEvent(new Event('input'));
console.log(`Inserted placeholder into input/textarea: ${placeholder}`);
} else {
console.error('No active input or textarea to insert placeholder.');
}
};
const copyToClipboard3 = text => {
// 删除文本两端的 $ 符号
text = text.replace(/^\$|\$$/g, '');
if (navigator.clipboard && navigator.clipboard.writeText) {
// 如果支持 navigator.clipboard API
navigator.clipboard.writeText(text).then(() => {
console.log(`Copied using clipboard API: ${text}`);
// 尝试触发粘贴操作
triggerPaste();
}).catch(err => {
console.error('Clipboard API failed, falling back to execCommand.', err);
fallbackCopyText(text); // 回退到兼容方法
});
} else {
// 使用后备方法
fallbackCopyText(text);
// 尝试触发粘贴操作
triggerPaste();
}
};
const copyToClipboard4 = text => {
// 检测并在两端添加 $ 符号
if (!text.startsWith('$')) text = `$${text}`;
if (!text.endsWith('$')) text = `${text}$`;
if (navigator.clipboard && navigator.clipboard.writeText) {
// 如果支持 navigator.clipboard API
navigator.clipboard.writeText(text).then(() => {
console.log(`Copied using clipboard API: ${text}`);
}).catch(err => {
console.error('Clipboard API failed, falling back to execCommand.', err);
fallbackCopyText(text); // 回退到兼容方法
});
} else {
// 使用后备方法
fallbackCopyText(text);
}
};
const copyToClipboard5 = text => {
// 删除文本中的所有 $ 符号
text = text.replace(/\$/g, '');
if (navigator.clipboard && navigator.clipboard.writeText) {
// 如果支持 navigator.clipboard API
navigator.clipboard.writeText(text).then(() => {
console.log(`Copied using clipboard API: ${text}`);
}).catch(err => {
console.error('Clipboard API failed, falling back to execCommand.', err);
fallbackCopyText(text); // 回退到兼容方法
});
} else {
// 使用后备方法
fallbackCopyText(text);
}
};
const copyToClipboard6 = text => {
if (navigator.clipboard && navigator.clipboard.writeText) {
// 如果支持 navigator.clipboard API
navigator.clipboard.writeText(text).then(() => {
console.log(`Copied using clipboard API: ${text}`);
}).catch(err => {
console.error('Clipboard API failed, falling back to execCommand.', err);
fallbackCopyText(text); // 回退到兼容方法
});
} else {
// 使用后备方法
fallbackCopyText(text);
}
};
// 回退方法使用 document.execCommand('copy')
const fallbackCopyText = text => {
const textArea = document.createElement('textarea');
textArea.value = text;
textArea.style.position = 'fixed'; // 避免页面跳动
textArea.style.opacity = '0'; // 隐藏文本框
document.body.appendChild(textArea);
textArea.focus();
textArea.select();
try {
const successful = document.execCommand('copy');
if (successful) {
console.log(`Copied using fallback method: ${text}`);
} else {
console.error('Fallback method failed.');
}
} catch (err) {
console.error('Fallback method error:', err);
}
document.body.removeChild(textArea);
};
// block browser's default context menu
document.addEventListener('contextmenu', event => {
event.preventDefault(); // Disable the default right-click menu
const selectedText = window.getSelection().toString().trim();
if (selectedText) {
// Create the custom menu at mouse position
createMenu(selectedText, event.pageX, event.pageY);
// console.log(selectedText);
}
});
// 自动触发粘贴操作的函数
const triggerPaste = () => {
const input = document.createElement('textarea'); // 创建一个隐藏的输入框
document.body.appendChild(input);
input.focus(); // 将焦点设置到输入框
document.execCommand('paste'); // 尝试执行粘贴操作
setTimeout(() => {
console.log('Pasted text:', input.value); // 输出粘贴的内容（测试用）
document.body.removeChild(input); // 移除临时输入框
}, 100); // 等待粘贴内容完成
};
// log script initialization
console.log('Latex_Automatic Formatting : v0.59 Script Updated!');
})();