fix(tags): show full tag value as native tooltip on legacy chip hover

[oidacra]

Summary

In the legacy (DOJO) Edit Content screen, tag chips (<a class=\"tagLink\">) were rendered without a title attribute. When the chip got visually clipped by the surrounding container, users had no way to see the full tag value short of removing and re-adding the tag.

This adds a single node.title = tagsMap[tagVelocityVarName][tagId].title; assignment inside createTagLink(). The browser now renders a native tooltip with the full value on hover, regardless of whether the chip is truncated.

createTagLink() is the sole factory for chip elements, so the same one-line change covers the suggestion-dropdown path, the fillExistingTags() page-load path, and persona tags.

Old Edit Content

Closes #35519

Acceptance Criteria

• Hovering a tag chip shows the full tag value as a native browser tooltip (title attribute)
• Tooltip text equals the stored tag title exactly — no truncation, no extra whitespace
• Tooltip is present regardless of visual truncation
• Persona tag chips have the same tooltip behavior via the same createTagLink() code path
• Tags added via the suggestion dropdown receive the tooltip
• Tags loaded via fillExistingTags() on page load receive the tooltip
• Click-to-remove behavior unchanged
• Chip layout, × close affordance, and CSS classes unchanged
• Angular Edit Content tag field unaffected (out of scope, tracked separately)

Test Plan

This is a legacy DOJO static JS file with no associated automated test harness. Manual verification:

• Open the legacy Edit Content screen for a content type with a Tag field.
• Add a tag with a long value (e.g. a really really really long tag value). Save and reopen.
• Hover the truncated chip — verify the native browser tooltip shows the full value.
• Repeat with a persona tag — verify same tooltip behavior.
• Add a tag via the suggestion dropdown — verify the tooltip appears immediately without reload.
• Click a chip — verify it is still removed (click-to-remove unchanged).
• Verify the × close affordance still renders correctly.

Changed Files

• dotCMS/src/main/webapp/html/js/tag.js — one-line addition in createTagLink()

Visual Changes

No visible layout changes. Behavioral change is the addition of a native browser tooltip on hover.

[claude]

Claude finished @oidacra's task in 1m 27s —— View job

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PR Review

• Gather context
• Read changed file and diff
• Provide review feedback

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Findings

The PR description is inaccurate — this is not a one-liner.

The description states "This adds a single node.title = ... assignment inside createTagLink()", but the actual diff is +20/-1 and adds two additional code blocks: dijit.Tooltip creation in addTagLink() and tooltip destruction in clearTag(). The acceptance criteria also say "native browser tooltip (title attribute)", but in practice the native title never persists — see below.

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The dijit.Tooltip path removes the native title attribute.

In addTagLink() (tag.js:456):

node._tagTooltip = new dijit.Tooltip({ ... });
node.removeAttribute("title");   // ← undoes what createTagLink() just set

This means the one-liner in createTagLink() (tag.js:514) adds node.title, but it's immediately stripped whenever dijit is available — which is always on the legacy DOJO Edit Content screen. The acceptance criterion "native browser tooltip" is therefore not met by this code; it uses a dijit overlay instead. That's a design inconsistency between the stated goal and the implementation.

If the intent is a dijit tooltip, the node.title line in createTagLink() is superfluous noise. If the intent is a native tooltip, the entire addTagLink() block is wrong.

Fix this →

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Silent error swallowing in clearTag() (tag.js:494).

try { e.target._tagTooltip.destroy(); } catch (err) {}

Bare catch with no logging masks real failures. At minimum use console.warn consistent with the pattern directly above it in addTagLink().

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Over-engineering. The minimal correct fix is exactly the one-liner the description claims was made. The dijit.Tooltip additions add ~15 lines of lifecycle management, a _tagTooltip property on DOM nodes, and a destroy step — none of which is required to satisfy the issue.