admin.suherdy/sign_image_field
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feat: Improve image field lazy loading by checking src attribute and reducing timeout, and refine image field setup with role-based access in PDFIframe and SignablePDFIframe.

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This commit is contained in:
Suherdy Yacob 2026-03-16 15:32:05 +07:00
parent 947543d54d
commit c98aa6777e
1 changed files with 26 additions and 13 deletions
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39
static/src/js/sign_image_upload.js
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@ -33,10 +33,10 @@ const setupLazyObserver = (iframeInstance, el) => {
return;
}
const lazyImg = el.querySelector('.o_sign_image_lazy');
if (!lazyImg || !lazyImg.dataset.src) return;
if (!lazyImg || (!lazyImg.dataset.src && !lazyImg.src)) return;
// Use a safety timeout to ensure it loads even if observer fails
const safetyTimeout = setTimeout(() => triggerLazyLoad(el), 5000);
const safetyTimeout = setTimeout(() => triggerLazyLoad(el), 3000);
const observer = new IntersectionObserver((entries) => {
entries.forEach(entry => {
@ -52,30 +52,44 @@ const setupLazyObserver = (iframeInstance, el) => {
observer.observe(el);
};
// 1. Patch PDFIframe (Base class)
// We patch only what is strictly necessary and avoid super calls if possible for base classes
// 1. Patch PDFIframe (Base class) for read-only / non-signer views
patch(PDFIframe.prototype, {
enableCustom(signItem) {
// PDFIframe.enableCustom is normally empty
if (typeof super.enableCustom === 'function') {
super.enableCustom(signItem);
}
// Shared logic: Ensure lazy loading is set up for all image fields
if (signItem && signItem.data && signItem.data.type === 'image') {
setupLazyObserver(this, signItem.el);
}
// Base PDFIframe.enableCustom is empty, but we call super just in case of other patches
if (typeof super.enableCustom === 'function') {
super.enableCustom(signItem);
}
}
});
// 2. Patch SignablePDFIframe (Subclass)
// 2. Patch SignablePDFIframe (Subclass) for active signers
patch(SignablePDFIframe.prototype, {
enableCustom(signItem) {
// Ensure we call the base implementation (which now includes our lazy loading)
// IMPORTANT: Execute shared logic first!
// PDFIframe.enableCustom (our patch above) will handle lazy loading.
// However, SignablePDFIframe does NOT normally call super.enableCustom().
// We manually trigger the shared observation logic here to be sure.
if (signItem && signItem.data && signItem.data.type === 'image') {
setupLazyObserver(this, signItem.el);
}
// Now call the original SignablePDFIframe.enableCustom (which has the role check)
super.enableCustom(signItem);
if (signItem && signItem.data && signItem.data.type === 'image') {
// Additional setup only for the current signer
if (signItem && signItem.data && signItem.data.type === 'image' && signItem.el) {
const el = signItem.el;
const data = signItem.data;
if (!el) return;
// Check if we are responsible for this field (duplicate check from original but needed for our additions)
if (this.readonly || data.responsible !== this.currentRole) {
return;
}
el.setAttribute('data-type', 'image');
@ -95,7 +109,6 @@ patch(SignablePDFIframe.prototype, {
const input = el.querySelector('.o_sign_image_upload_input');
if (input) {
el.addEventListener('click', (e) => {
if (this.readonly || (data.responsible > 0 && data.responsible !== this.currentRole)) return;
if (e.target !== input) {
input.click();
}