@Cirdan would what we do on desktop work here?

@alexhollender, the steps to reproduce appear to be:

1. Click on https://m.mediawiki.org/w/index.php?oldid=2934863#/editor/0
2. Oops, that's broken.

That link is (currently) the most recent version, and the page is not protected. But the mobile site is refusing to open the mobile editor so you can edit it. It is incorrectly treating the page like it's fully protected.

Exactly. Most simple thing to do here is check that the revision matches the current one and show view source only for non matching revisions. Interestingly it only impacts the source editor (i can still edit in ve )

A more ambitious idea might be to allow editing of all revisions... could be useful for rollback and undo features but the editor should make clear what's being edited to avoid mistakes

@Jdlrobson thoughts on T200969#4589239? Maybe I'm misunderstanding the issue...

Bad link... https://phabricator.wikimedia.org/T200969#4717071

In T200969#4589239, @alexhollender wrote:

@Cirdan would what we do on desktop work here?

Sorry for the late response.

Personally, I think that if one arrives at the latest revision of a page, the "navigation box" should not be shown at all, but instead the page itself should be shown. In other words: Don't display the revision, but display the page.

One often wants to read/edit a page, but less often wants to navigate through old revisions. If the latter is the case, the box is quite useless on mobile, as it is very difficult to click the small links (it also doesn't fit the style). If I really need to go through revisions, I use the mobile diff view, which is both easy to navigate and provides the much better UX.

@Cirdan Is it ever the case you need to view the source associated with the article? If so under what circumstances? From what I am hearing Alex, it does sound like the default behaviour should be to link to the article, but maybe 2 links are needed here?

Crude mock up (note the rev. link):

@Jdlrobson helped me better understand the issue here. Starting with what we do on vector/desktop:

@Cirdan would this be an acceptable mobile equivalent?

In T200969#5028466, @Jdlrobson wrote:

@Cirdan Is it ever the case you need to view the source associated with the article? If so under what circumstances?

Usually not. When I'm looking at a diff and want to reach the article, I usually want to see the most recent version, either to check how the change affects the article or to add a reply to an ongoing discussion. Either way, I want to reach the current version and be able to edit it.

This is different from my workflow on the desktop version, where I have the option to revert changes from the diff and can also edit old versions to restore a past state. I guess what's important to consider here is that experienced editors can in most cases visualize the changes made to an article, while new editors might be more likely to want to see a rendered version of an intermediate state.

@Jdlrobson based on our conversation I feel good about the design I posted in T200969#5038114. @Cirdan any additional feedback on that? Otherwise I think we're all set on design.

Change 502191 had a related patch set uploaded (by Jdrewniak; owner: Jdrewniak):
[mediawiki/extensions/MobileFrontend@master] Add link to current article from Special:MobileDiff page

https://gerrit.wikimedia.org/r/502191

Change 502191 merged by jenkins-bot:
[mediawiki/extensions/MobileFrontend@master] Add link to current article from Special:MobileDiff page

https://gerrit.wikimedia.org/r/502191

@alexhollender you can verify it here: https://reading-web-staging.wmflabs.org/

QA Steps

1. Go to a random article
2. Scroll down to reach the page history
3. Click the most recent entry in the page history, arriving at the mobile diff
4. Imagine that you came here via your watchlist
5. Click on the page title to reach the view of current revision
6. Note that there are "edit pens", but one can only view the source, not edit (which makes sense on old revisions)

@Edtadros, I am seeing this same behavior on master. When I tap the edit pencils, it says "Viewing source of PAGE TITLE". What I see that's new is the parenthetical edit link on Special:MobileDiff. @Jdrewniak, is this expected?

At first, I thought the verification was step 6, but I'm not sure based on the Expected and Actual. Please confirm what the validation should be.

@Edtadros, I think step #6 caused the confusion. The "edit pens" do not appear on the most recent version of the article. The validation here is actually step 5: "Click on the page title to reach the view of current revision".

The goal here was to add a link to the current version of the article from the mobile diff page, and I think the videos you posted demonstrate that behaviour correctly. So I think this can go into sign-off.