ChatPDF

transform your chatgpt's answer to PDF

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         ChatPDF
// @namespace    http://tampermonkey.net/
// @version      1.3.2
// @description  transform your chatgpt's answer to PDF
// @author       You
// @match        https://chatgpt.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=ensky.tech
// @grant        none
// @require      https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.10.1/html2pdf.bundle.min.js
// @license     MIT
// ==/UserScript==

(function() {
    'use strict';

 const observer = new MutationObserver((mutationsList, observer) => {

        for(let mutation of mutationsList) {// iterate the mutation
            if(mutation.type == "childList") {// focus on childList event
                if(ifBtnExist()) { // check the buttom button if exist
                }else {
                    const submitBtn = getSubmitButton()
                    const selectAllBtn = getSelectAllButton()
                    const cancelAllBtn = getCancelAllButton()
                    // mount the button
                    const parent = document.querySelector('.md\\:pt-0.dark\\:border-white\\/20.md\\:border-transparent.md\\:dark\\:border-transparent.w-full')
                    const firstChild = parent.firstChild
                    parent.insertBefore(selectAllBtn, firstChild)
                    parent.insertBefore(cancelAllBtn, firstChild)
                    parent.insertBefore(submitBtn, firstChild)
                }
    
                // iterate the Q and A
                const elements = document.querySelectorAll('article')
    
                if(elements.length!==0) {
                    elements.forEach((element, index) => {
                        if(element.children[1].children[0].children[0].tagName=="INPUT") {
                            // special case, sometimes the first question's input box will occur in left side
                            if( index==0 && element.children[1].children[0].children[0].style.left=="10px") {
                                element.children[1].children[0].children[0].style.left = "780px"
                                element.children[1].children[0].children[0].style.top = "13px" 
                            }
                            return
                        }
                        const checkbox = getCheckBox(index)
                        element.children[1].children[0].prepend(checkbox)
                    })
                }
            }
        }
    })
    
    
    const targetNode = document.querySelector('main')
    
    observer.observe(targetNode, { 
        childList: true, 
        subtree: true,
        attributes: true,
        characterData: true 
    })
    
    /**
     * create the checkbox
     */
    function getCheckBox(index) {
        const checkbox = document.createElement('input')
        checkbox.type = 'checkbox'
        checkbox.checked = true
        checkbox.style.position = "relative"
        checkbox.style.top = "8px"
        checkbox.style.left = "10px"
        if(index % 2 == 0) {
            checkbox.style.left = "780px"
            checkbox.style.top = "13px" 
        }
        return checkbox
    }
    
    
    /**
     * create the submit button
     */
    function getSubmitButton() {
        let submitBtn = document.createElement('button')
        submitBtn.textContent = "Transform to PDF"
        
        submitBtn.style.all = 'unset'
        submitBtn.style.display = 'inline-block'
        submitBtn.style.padding = '2px 6px'
        submitBtn.style.border = '1px solid black'
        submitBtn.style.backgroundColor = 'white'
        submitBtn.style.cursor = 'pointer'
        submitBtn.style.fontFamily = 'inherit'
        submitBtn.style.fontSize = 'inherit'
        submitBtn.style.lineHeight = 'inherit'
        submitBtn.style.position = 'relative'
        submitBtn.style.marginLeft = '20px'
        
        submitBtn.addEventListener('click', ()=> {
            output()
        })
    
        return submitBtn
    }
    
    function getSelectAllButton() {
        let selectAllBtn = document.createElement('button')
        selectAllBtn.textContent = "Select All"
        
        selectAllBtn.style.all = 'unset'
        selectAllBtn.style.display = 'inline-block'
        selectAllBtn.style.padding = '2px 6px'
        selectAllBtn.style.border = '1px solid black'
        selectAllBtn.style.backgroundColor = 'white'
        selectAllBtn.style.cursor = 'pointer'
        selectAllBtn.style.fontFamily = 'inherit'
        selectAllBtn.style.fontSize = 'inherit'
        selectAllBtn.style.lineHeight = 'inherit'
        selectAllBtn.style.position = 'relative'
        selectAllBtn.style.marginLeft = '200px'
        
        selectAllBtn.addEventListener('click', ()=> {
            selectAll()
        })
    
        return selectAllBtn
    
    }
    function getCancelAllButton() {
        let cancelAllBtn = document.createElement('button')
        cancelAllBtn.textContent = "Cancel All"
        
        cancelAllBtn.style.all = 'unset'
        cancelAllBtn.style.display = 'inline-block'
        cancelAllBtn.style.padding = '2px 6px'
        cancelAllBtn.style.border = '1px solid black'
        cancelAllBtn.style.backgroundColor = 'white'
        cancelAllBtn.style.cursor = 'pointer'
        cancelAllBtn.style.fontFamily = 'inherit'
        cancelAllBtn.style.fontSize = 'inherit'
        cancelAllBtn.style.lineHeight = 'inherit'
        cancelAllBtn.style.position = 'relative'
        cancelAllBtn.style.marginLeft = '20px'
        
        cancelAllBtn.addEventListener('click', ()=> {
            cancelAll()
        })
    
        return cancelAllBtn
    
    }
    
    function cancelAll() {
        const elements = document.querySelectorAll('article')
    
        if(elements.length!==0) {
            elements.forEach((element, index) => {
                element.children[1].children[0].children[0].checked = false
            })
        }
    }
    
    function selectAll() {
        const elements = document.querySelectorAll('article')
    
        if(elements.length!==0) {
            elements.forEach((element, index) => {
                element.children[1].children[0].children[0].checked = true
            })
        }
    }
    
    /**
     * transform the div element to PDF
     */
    function output() {
        const div = collect()
        div.style.pageBreakInside = "avoid" /* avoid paging inside the element */
    
        let opt = {
            margin:       [0.5, -0.3, 0, 0],
            filename:     'my-document.pdf',
            jsPDF:        { unit: 'in', format: 'letter', orientation: 'portrait' },
            pagebreak:    { mode: ['avoid-all'] }
          }
    
        html2pdf().from(div).set(opt).save()
    }
    
    /**
     * iterte the Q and A then collect to a div element
     */
    function collect() {
        const DIV = document.createElement("div")
        // 遍历回答和问题
        const elements = document.querySelectorAll('article')
        if(elements.length!==0) {
            elements.forEach((element, index) => {
                if(element.children[1].children[0].children[0].tagName=="INPUT") {
                    if (element.children[1].children[0].children[0].checked == true) {
                        // 收集整个元素后清除input
                        const newNode = element.cloneNode(true)
                        newNode.children[1].children[0].children[0].style.display='none'
                        DIV.append(newNode.children[1]) // matter
                    }
                }
            })
        }
        return DIV
    }
    
    /**
     * check if the button exist
     */
    function ifBtnExist() {
        const parent = document.querySelector('.md\\:pt-0.dark\\:border-white\\/20.md\\:border-transparent.md\\:dark\\:border-transparent.w-full')
        const firstChild = parent.firstChild
        if(firstChild.tagName == 'BUTTON') {
            return true
        }else {
            return false
        }
    }


})();