378179 - Drag and drop of items on read-only calendar throws an error

Status: RESOLVED DUPLICATE of bug 313640

(Calendar :: Calendar Frontend, defect)

Description

[snotling]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; fr-FR; rv:1.8.1.2) Gecko/20070208 Iceweasel/2.0.0.2 (Debian-2.0.0.2+dfsg-1)
Build Identifier: Lightning 0.5pre

When you drag and drop (move around) items on a read-only calendar, it throws an error in the JS console.

In addition, the blue-ish item "ghost" is displayed when dragging the item. Should it be displayed at all ? i.e. inform early the user that the item *won't* be moved.

Reproducible: Always

Steps to Reproduce:
1. Set a calendar to read-only
2. Drag around an item of this calendar
3. Look at JS console
Actual Results:  
An error is throw in the JS console:
[Exception... "'<error>' when calling method: [calICalendar::modifyItem]"  nsresult: "0x804a0002 (<unknown>)"  location: "JS frame :: file:///home/damiano/.thunderbird/vezwsbc3.default/extensions/%7Be2fda1a4-762b-4020-b5ad-a41df1933103%7D/js/calTransactionManager.js :: cT_doTransaction :: line 172"  data: no]



Expected Results:  
No error should be seen in JS console.