Unified view issues with Vienna version 3.0.0 Beta 12 and higher

[cbean]

I am using:

Layout: unified Filter by: unread articles Style: xcast

With beta 11 I have no problems scrolling windows with tons of articles in any feed. All pictures, text, etc is already there and viewable, immediately.

With versions later than beta 11, i.e. beta 12, 13, 14,... 18 in particular, each rss article is loaded while I am scrolling thru a feed, images are loaded, boxes are resized, and articles are displayed after a long time of rendering. Very often I have to scroll back and forward to make an article render properly. So in my experience unified layout is broken since version 3 beta 12.

I downgraded to version 3 beta 11.

Hopefully, you'll fix this.

Same with Vienna 3 Beta 18.

[Echelon9]

I believe @barijaona is working on this under his forked branch

[barijaona]

Pull request #233 should improve on this subject.

Note for people interested in helping : we don't use NSTableView/NSTableCellView because NSTableCellView is available only on OS X Lion (10.7) or better. We use PXListView instead.

[barijaona]

Do you see some improvement with Beta 19 ?

[cbean]

@barijaona

I see some speed improvements, but the behavior is still the same while I am scrolling thru a feed, images are loaded, boxes are resized, and articles are displayed after a time of rendering.

The problem is, that not all articles are refreshed in unified list view but only the articles viewable in window. While scrolling thru the articles, they are in the process of refreshing.

Once the feed is deselected and selected again, the articles are rendered / refreshed again. There is no cache...

All in all you can't scroll fast thru articles without seeing refreshing... also there seems a queue for refreshing (viewable in status-bar) and it seems the amount of threads for refreshing articles are limited?

[cbean]

@barijaona

I have a screencast showing the issue (Vienna 3.0.0 Beta 19 Build 40267c3 Issue #229.mov, 30MB), please let me know how to send it to you.

[cbean]

Converted to Vienna 3.0.0 Beta 19 Build 40267c3 Issue #229.mp4, 11.5MB.

[barijaona]

Hi @cbean : I understand your point of view, but this is the result of a deliberate design decision. In former versions of Vienna, Unified view just showed a big and long webpage. This approach had two downsides :

• there was no way to select a single article for flagging it, sharing it, etc… (issue #77)
• when you had multiple articles, each one containing heavy graphics resources, Vienna had to load most of these resources at once before displaying the webpage, making the UI becoming unresponsive (issue #162).

This is why I tested a new approach : instead of generating a single webpage, generate a separate web view for each article. The decision to go ahead with the new approach was collective (pull request #191).

You might have noticed that I continue working on Unified display view. Cocoa requires that anything drawing a view occurs in the main thread. May be we will be able to move certain things in separate threads, but don't expect too much.

[cbean]

@barijaona : Thank your for your answer. I appreciate the new approach and solving issue #162. The web view is nice but not as responsive as it should be.

The downsides of the new web-view:

• While loading a longer list of unified articles, the scrolling is very bad, articles are reloaded all the time.
• While scrolling back or forward, the articles are reloaded even if they had been loaded before

In my opinion, there should be a caching function so once articles are downloaded, they can be rendered faster and also images are kept and need not to be downloaded. This should also fix re-downloading of contents and images while switching between feeds. Description: FEED1 contains several articles, let's say 100. FEED2 contains several articles, let's say 100. If you select FEED1 all articles are rendered fast, then you select FEED2 (leaving FEED1) all articles of FEED2 are rendered fast. The problem is if you reselect FEED1, all articles are re-rendering and also images aren't kept and re-downloaded. This prevents fast switching between feeds and also fast scrolling in feeds.

So I vote for a caching option or an offline reading option.

Is there a chance to see this in further versions?

[cbean]

Still not working. Still not fluid enough, still reloading stuff which is already viewed. Still bad caching. Still redrawing of articles and bad rendering.

[cbean]

This bug needs to be reopened. Since the issue isn't fix in beta 20. Switched back to Vienna beta 11.