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slack: channel screen: previous post

This commit is contained in:
Kartik K. Agaram 2021-08-13 14:29:27 -07:00
parent 32993b205b
commit 8c332c3a15
1 changed files with 18 additions and 1 deletions
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19
browse-slack/environment.mu
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@ -533,7 +533,7 @@ fn next-item _env: (addr environment), users: (addr array user), channels: (addr
decrement *dest
}
fn previous-item _env: (addr environment), users: (addr array user), channels: (addr array channel), _items: (addr item-list) {
fn previous-item _env: (addr environment), users: (addr array user), _channels: (addr array channel), _items: (addr item-list) {
var env/edi: (addr environment) <- copy _env
var tabs-ah/eax: (addr handle array tab) <- get env, tabs
var _tabs/eax: (addr array tab) <- lookup *tabs-ah
@ -556,6 +556,23 @@ fn previous-item _env: (addr environment), users: (addr array user), channels: (
increment *dest
return
}
compare *current-tab-type, 1/channel
{
break-if-!=
var current-channel-index-addr/eax: (addr int) <- get current-tab, root-index
var current-channel-index/eax: int <- copy *current-channel-index-addr
var channels/esi: (addr array channel) <- copy _channels
var current-channel-offset/eax: (offset channel) <- compute-offset channels, current-channel-index
var current-channel/eax: (addr channel) <- index channels, current-channel-offset
var current-channel-posts-first-free-addr/eax: (addr int) <- get current-channel, posts-first-free
var final-item-index/ecx: int <- copy *current-channel-posts-first-free-addr
final-item-index <- decrement
var dest/eax: (addr int) <- get current-tab, item-index
compare *dest, final-item-index
break-if->=
increment *dest
return
}
}
fn page-down _env: (addr environment), users: (addr array user), channels: (addr array channel), _items: (addr item-list) {