[Merge] lp:~artmello/webbrowser-app/webbrowser-app-bookmarks_top_sites into lp:webbrowser-app

[Arthur Mello]

> The "see more/see less" transition is looking better, but still not perfect
> IMHO.
> 
> When I click "see more", I’m seeing the "top sites" section being abruptly
> shifted downwards, then fade away. It should probably move downwards smoothly
> and fade away at the same time.

The "bookmarks" and the "top sites" lists are inside a ListView. I tried to animate with Behavior on Y the delegate but with no success. My idea was to animate the move from the "top sites" component. Any suggestion?
 
> When I click "see less", the extra bookmarks disappear instantly. Ideally they
> should fade away progressively as the footer is moved upwards.

Right now the bookmarks list is a Repeater, not a ListView, inside a Column. I am animating the move transition of the Column. That is why we have the effect when we are "expanding" the Repeater. But to use the same effect before removing the entries of the Repeater I would need to use something like the delayRemove from the ListView. I didn't find a way to do that on a Repeater. Any suggestion? Should I change the Repeater to a ListView?
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https://code.launchpad.net/~artmello/webbrowser-app/webbrowser-app-bookmarks_top_sites/+merge/224592
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