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Truncate long property values in tooltip #253

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Merged
merged 1 commit into from
Nov 14, 2025
Merged

Truncate long property values in tooltip #253

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2 changes: 2 additions & 0 deletions changelog.md
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Original file line number Diff line number Diff line change
Expand Up @@ -13,4 +13,6 @@

## Improvements

- Truncate large property values in the rendered output.
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@adamnsch adamnsch Nov 14, 2025

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Even bug fix I would say :)


## Other changes
12 changes: 10 additions & 2 deletions js-applet/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,14 @@ class PyNVL {
if (tooltip !== null) {
this.hoverInteraction = new HoverInteraction(this.nvl)

const truncateValue = (value: any, maxLength: number = 100): string => {
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@adamnsch adamnsch Nov 14, 2025

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Not sure this maxLength will be good for all window sizes, but let's not worry about it for now

const strValue = String(value);
if (strValue.length <= maxLength) {
return strValue;
}
return `<span class="tooltip-value">${strValue}</span>`;
};

this.hoverInteraction.updateCallback('onHover', (element: PyNode | PyRel) => {
if (element === undefined) {
tooltip.textContent = "";
Expand All @@ -49,7 +57,7 @@ class PyNVL {

let hoverInfo: string = (`<b>Source ID:</b> ${rel.from} </br><b>Target ID:</b> ${rel.to}`)
for (const [key, value] of Object.entries(element.properties)) {
hoverInfo += `</br><b>${key}:</b> ${value}`
hoverInfo += `</br><b>${key}:</b> ${truncateValue(value)}`
}
tooltip.setHTMLUnsafe(hoverInfo)

Expand All @@ -59,7 +67,7 @@ class PyNVL {
} else if ("id" in element) {
let hoverInfo: string = `<b>ID:</b> ${element.id}`
for (const [key, value] of Object.entries(element.properties)) {
hoverInfo += `</br><b>${key}:</b> ${value}`
hoverInfo += `</br><b>${key}:</b> ${truncateValue(value)}`
}
tooltip.setHTMLUnsafe(hoverInfo)

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2 changes: 1 addition & 1 deletion python-wrapper/src/neo4j_viz/resources/nvl_entrypoint/base.js
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Large diffs are not rendered by default.

14 changes: 13 additions & 1 deletion python-wrapper/src/neo4j_viz/resources/nvl_entrypoint/styles.css
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Original file line number Diff line number Diff line change
Expand Up @@ -49,5 +49,17 @@ button.icon:active {
filter: drop-shadow(0 4px 8px rgba(26,27,29,0.12));
font-family: 'Public Sans', sans-serif;
color: var(--neutral-text-default);
font-size: 14px
font-size: 14px;
overflow-y: auto;
overflow-x: hidden;
word-wrap: break-word;
overflow-wrap: break-word;
}

.tooltip-value {
display: inline-block;
max-width: 100%;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}