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Trigger full page load for Jira Cloud and Confluence Cloud

Trigger the page to load parts that are normally (since August 2025) lazily loaded, when that part of the page this shown. Works on Jira Cloud and Confluence Cloud as of August 2025.

// ==UserScript==
// @name        Trigger full page load for Jira Cloud and Confluence Cloud
// @namespace   https://greasyfork.org/users/1047370
// @description Trigger the page to load parts that are normally (since August 2025) lazily loaded, when that part of the page this shown.  Works on Jira Cloud and Confluence Cloud as of August 2025.
// @include     https://*.atlassian.net/*
// @include     https://*.jira.com/*
// @match       https://*.atlassian.net/*
// @match       https://*.jira.com/*
// @version     0.5
// @author      Marnix Klooster <[email protected]>
// @copyright   public domain
// @license     public domain
// @homepage    https://greasyfork.org/scripts/546394
// @grant       none
// @run-at      document-start
// ==/UserScript==
 
(function() {
    'use strict';
    
    // Debug flag - set to true for development logging
    const DEBUG = false;
    
    const processedElements = new WeakSet();
    let isProcessing = false;
    
    const waitForPageLoad = () => {
        return new Promise(resolve => {
            if (document.readyState === 'complete') {
                resolve();
            } else {
                window.addEventListener('load', resolve);
            }
        });
    };
    
    const createGlassPane = (scrollTop, scrollLeft) => {
        // Create the overlay container
        const pane = document.createElement('div');
        pane.style.cssText = `
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: white;
            z-index: 999999;
            overflow: hidden;
        `;
        
        // Create viewport snapshot
        const snapshot = document.createElement('div');
        snapshot.style.cssText = `
            position: absolute;
            top: -${scrollTop}px;
            left: -${scrollLeft}px;
            width: ${document.documentElement.scrollWidth}px;
            height: ${document.documentElement.scrollHeight}px;
            pointer-events: none;
            transform-origin: 0 0;
        `;
        
        // Clone the current page content
        try {
            const bodyClone = document.body.cloneNode(true);
            
            // Remove any existing glass panes from the clone to avoid recursion
            const existingPanes = bodyClone.querySelectorAll('[style*="z-index: 999999"]');
            existingPanes.forEach(pane => pane.remove());
            
            // Remove scripts from clone to prevent execution
            const scripts = bodyClone.querySelectorAll('script');
            scripts.forEach(script => script.remove());
            
            snapshot.appendChild(bodyClone);
        } catch (e) {
            // Fallback to white background if cloning fails
            snapshot.style.background = 'white';
        }
        
        pane.appendChild(snapshot);
        
        // Create progress overlay on top of screenshot
        const progressOverlay = document.createElement('div');
        progressOverlay.style.cssText = `
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        `;
        
        const progressContainer = document.createElement('div');
        progressContainer.style.cssText = `
            background: white;
            border-radius: 8px;
            padding: 24px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
            min-width: 300px;
            text-align: center;
        `;
        
        const progressText = document.createElement('div');
        progressText.textContent = 'Loading content...';
        progressText.style.cssText = `
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
            font-size: 14px;
            color: #172B4D;
            margin-bottom: 16px;
            font-weight: 500;
        `;
        
        const progressTrack = document.createElement('div');
        progressTrack.style.cssText = `
            width: 100%;
            height: 4px;
            background: #DFE1E6;
            border-radius: 2px;
            overflow: hidden;
        `;
        
        const progressBar = document.createElement('div');
        progressBar.style.cssText = `
            width: 0%;
            height: 100%;
            background: #0052CC;
            border-radius: 2px;
            transition: width 0.3s ease;
        `;
        
        progressTrack.appendChild(progressBar);
        progressContainer.appendChild(progressText);
        progressContainer.appendChild(progressTrack);
        progressOverlay.appendChild(progressContainer);
        pane.appendChild(progressOverlay);
        
        document.body.appendChild(pane);
        
        const showProgress = () => {
            progressOverlay.style.opacity = '1';
        };
        
        return { pane, progressBar, showProgress };
    };
    
    const findEmptyDivs = () => {
        const emptyDivs = Array.from(document.querySelectorAll('div'))
            .filter(div => 
                div.textContent.trim() === '' && 
                div.attributes.length === 0 &&
                !processedElements.has(div)
            );
        
        // Log details about found empty divs (in natural DOM order)
        if (DEBUG && emptyDivs.length > 0) {
            console.log(`Found ${emptyDivs.length} empty divs:`);
            emptyDivs.forEach((div, index) => {
                const rect = div.getBoundingClientRect();
                const top = rect.top + window.scrollY;
                const left = rect.left + window.scrollX;
                const parent = div.parentElement;
                const parentInfo = parent ? `${parent.tagName}${parent.className ? '.' + parent.className : ''}${parent.id ? '#' + parent.id : ''}` : 'no-parent';
                console.log(`  ${index + 1}. Position: (${Math.round(left)}, ${Math.round(top)}) Parent: ${parentInfo}`);
            });
        }
        
        return emptyDivs;
    };
    
    const waitForStability = (element, timeout = 50) => {
        return new Promise(resolve => {
            let timer;
            const observer = new MutationObserver(() => {
                clearTimeout(timer);
                timer = setTimeout(() => {
                    observer.disconnect();
                    resolve();
                }, timeout);
            });
            
            observer.observe(element, {
                childList: true,
                subtree: true,
                attributes: true,
                characterData: true
            });
            
            // Start initial timer in case no mutations occur
            timer = setTimeout(() => {
                observer.disconnect();
                resolve();
            }, timeout);
        });
    };
    
    const scrollToElement = async (element, index, total) => {
        // Get element's position relative to the document
        const rect = element.getBoundingClientRect();
        const elementTop = rect.top + window.scrollY;
        const elementLeft = rect.left + window.scrollX;
        
        if (DEBUG) {
            console.log(`Processing ${index + 1}/${total}: Scrolling to (${Math.round(elementLeft)}, ${Math.round(elementTop)})`);
        }
        
        // Only scroll vertically to the element's y coordinate
        window.scrollTo({
            top: elementTop,
            left: window.scrollX, // Keep current horizontal position
            behavior: 'smooth'
        });
        
        await waitForStability(element);
        processedElements.add(element);
        
        // Log if element changed after processing
        if (DEBUG) {
            const newRect = element.getBoundingClientRect();
            const hasContent = element.textContent.trim() !== '';
            const hasAttributes = element.attributes.length > 0;
            if (hasContent || hasAttributes) {
                console.log(`  ✓ Element loaded content: text=${hasContent}, attrs=${hasAttributes}`);
            } else {
                console.log(`  ⚠ Element still empty after processing`);
            }
        }
    };
    
    const processLazyElements = async () => {
        if (isProcessing) return;
        isProcessing = true;
        
        const emptyDivs = findEmptyDivs();
        
        if (emptyDivs.length === 0) {
            isProcessing = false;
            return;
        }
        
        if (DEBUG) {
            console.log(`Processing ${emptyDivs.length} lazy-loaded elements`);
        }
        
        // Store original scroll position and page dimensions BEFORE any processing
        const originalScrollTop = window.scrollY;
        const originalScrollLeft = window.scrollX;
        const originalPageHeight = document.documentElement.scrollHeight;
        
        if (DEBUG) {
            console.log(`Starting position: scrollTop=${originalScrollTop}, pageHeight=${originalPageHeight}`);
        }
        
        // Create glass pane with the current (original) scroll position
        const { pane: glassPane, progressBar, showProgress } = createGlassPane(originalScrollTop, originalScrollLeft);
        
        // Wait 200ms before showing progress to prevent flashing for quick operations
        const showTimer = setTimeout(showProgress, 200);
        
        try {
            for (let i = 0; i < emptyDivs.length; i++) {
                const progress = ((i + 1) / emptyDivs.length) * 100;
                progressBar.style.width = `${progress}%`;
                
                await scrollToElement(emptyDivs[i], i, emptyDivs.length);
            }
            
            // Calculate safe scroll position after all processing is complete
            const newPageHeight = document.documentElement.scrollHeight;
            const maxScrollTop = Math.max(0, newPageHeight - window.innerHeight);
            const safeScrollTop = Math.min(originalScrollTop, maxScrollTop);
            
            if (DEBUG) {
                console.log(`Restoring scroll: original=${originalScrollTop}, safe=${safeScrollTop}, pageHeight=${originalPageHeight}->${newPageHeight}`);
            }
            
            // Restore scroll position BEFORE removing glass pane
            window.scrollTo({
                top: safeScrollTop,
                left: originalScrollLeft,
                behavior: 'instant'
            });
            
            // Wait for scroll to settle and any layout changes
            await new Promise(resolve => setTimeout(resolve, 100));
            
            // Verify scroll position is correct before removing glass pane
            if (DEBUG) {
                const finalScrollTop = window.scrollY;
                console.log(`Final scroll position: ${finalScrollTop} (target was ${safeScrollTop})`);
            }
            
        } finally {
            clearTimeout(showTimer);
            glassPane.remove();
            isProcessing = false;
        }
    };
    
    const observePageChanges = () => {
        const observer = new MutationObserver((mutations) => {
            // Check if any new empty divs appeared
            if (DEBUG) {
                const newEmptyDivs = findEmptyDivs();
                if (newEmptyDivs.length > 0) {
                    console.log(`🔄 Page change detected, found ${newEmptyDivs.length} new empty divs after mutation`);
                    
                    // Log what type of mutations triggered this
                    const mutationTypes = mutations.map(m => m.type).filter((v, i, a) => a.indexOf(v) === i);
                    console.log(`  Mutation types: ${mutationTypes.join(', ')}`);
                }
            }
            
            // Debounce to avoid excessive processing
            clearTimeout(observer.timer);
            observer.timer = setTimeout(processLazyElements, 100);
        });
        
        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
    };
    
    const init = async () => {
        await waitForPageLoad();
        console.log('Page fully loaded, starting lazy element processing');
        
        await processLazyElements();
        observePageChanges();
    };
    
    init();
    
})();