fix(extension-suggestion): get client rect by anchor.

[YonLJ]

Changes Overview

Previously, clientRect was only obtained through decorationNode. If decorationNode could not be obtained, the value of clientRect was assigned to null. This commit adds a new method to obtain clientRect.

Implementation Approach

If decorationNode cannot be obtained, the coordinates are obtained according to the editor's cursor position, and the cursor position is used to generate a DOMRect.

Testing Done

In scenarios where Chinese IME is used, the value of clientRect is almost always null, which causes the "suggestion" to not render. This commit fixes this issue.

Verification Steps

Just type @ when using the Chinese input method and the result will be verified.

Additional Notes

Checklist

• I have created a changeset for this PR if necessary.
• My changes do not break the library.
• I have added tests where applicable.
• I have followed the project guidelines.
• I have fixed any lint issues.

Related Issues

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[bdbch]

Just to clarify a little bit more - which decoration node are we talking about here?
For suggestions I usually used the posToDOMRect util function that is included in @tiptap/core, @tiptap/react and @tiptap/vue-* to get the clientRect by editor position (for example the cursor position)

[YonLJ]

Just to clarify a little bit more - which decoration node are we talking about here? For suggestions I usually used the posToDOMRect util function that is included in @tiptap/core, @tiptap/react and @tiptap/vue-* to get the clientRect by editor position (for example the cursor position)

The decoration node discussed here is the HTML tag that wraps the "@" character (like this <span data-decoration-id="id_xxxxxxx" class="suggestion">@</span>), which determines the display position of the "suggestion" component.

If it work properly, the html in the editor will look like this

<p>What do you all think about the new <span class="mention" data-type="mention" data-id="Winona Ryder" contenteditable="false">@Winona Ryder</span> movie? <span data-decoration-id="id_3457874414" class="suggestion">@</span></p>

When using Chinese input method, it is often impossible to obtain the decoration node by

view.dom.querySelector(`[data-decoration-id="${decorationId}"]`) 

[codeingforcoffee]

I have same problem, hope this can fix