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Merge pull request #578 from status-im/bug/#577 

Fix tabs white screen
This commit is contained in:
Roman Volosovskyi 2016-12-24 11:17:58 +02:00 committed by GitHub
parent d691eaf326 4a22c4a983
commit 5f9aa7a244
1 changed files with 24 additions and 8 deletions
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32
src/status_im/components/main_tabs.cljs
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@ -1,6 +1,7 @@
(ns status-im.components.main-tabs
(:require-macros [reagent.ratom :refer [reaction]]
[status-im.utils.views :refer [defview]])
[status-im.utils.views :refer [defview]]
[cljs.core.async.macros :as am])
(:require [re-frame.core :refer [subscribe dispatch dispatch-sync]]
[reagent.core :as r]
[status-im.components.react :refer [view
@ -21,7 +22,7 @@
[status-im.components.tabs.styles :as st]
[status-im.components.styles :as common-st]
[status-im.i18n :refer [label]]
[taoensso.timbre :as log]))
[cljs.core.async :as a]))
(def tab-list
[{:view-id :chat-list
@ -57,7 +58,7 @@
(dispatch [:on-navigated-to-tab]))))))))))
(def tab->index {:chat-list 0
:discover 1
:discover 1
:contact-list 2})
(def index->tab (clojure.set/map-invert tab->index))
@ -70,28 +71,43 @@
n (get-tab-index view-id)]
(- n p)))
(defn on-scroll-end [swiped? dragging?]
(defn on-scroll-end [swiped? dragging? scroll-ended]
(fn [_ state]
(a/put! scroll-ended true)
(when @dragging?
(reset! dragging? false)
(let [{:strs [index]} (js->clj state)]
(reset! swiped? true)
(dispatch [:navigate-to-tab (index->tab index)])))))
(defn start-scrolling-loop
"Loop that synchronizes tabs scrolling to avoid an inconsistent state."
[scroll-start scroll-ended]
(am/go-loop [[swiper to] (a/<! scroll-start)]
;; start scrolling
(.scrollBy swiper to)
;; lock loop until scroll ends
(a/<! scroll-ended)
(recur (a/<! scroll-start))))
(defn main-tabs []
(let [view-id (subscribe [:get :view-id])
prev-view-id (subscribe [:get :prev-view-id])
main-swiper (r/atom nil)
swiped? (r/atom false)
dragging? (r/atom false)]
dragging? (r/atom false)
scroll-start (a/chan 10)
scroll-ended (a/chan 10)]
(r/create-class
{:component-will-update
{:component-did-mount
#(start-scrolling-loop scroll-start scroll-ended)
:component-will-update
(fn []
(if @swiped?
(reset! swiped? false)
(when @main-swiper
(let [to (scroll-to @prev-view-id @view-id)]
(.scrollBy @main-swiper to)))))
(a/put! scroll-start [@main-swiper to])))))
:reagent-render
(fn []
[view common-st/flex
@ -105,7 +121,7 @@
:loop false
:ref #(reset! main-swiper %)
:onScrollBeginDrag #(reset! dragging? true)
:on-momentum-scroll-end (on-scroll-end swiped? dragging?)})
:on-momentum-scroll-end (on-scroll-end swiped? dragging? scroll-ended)})
[chats-list]
[discover (= @view-id :discover)]
[contact-list (= @view-id :contact-list)]]