Merge pull request #307 from status-im/feature/#293

Tab text animations (fixes #293)

src/status_im/components/tabs/styles.cljs

@@ -65,3 +65,6 @@
    :bottom         0
    :padding-bottom 60
    :transform      [{:translateX offset-x}]})
+
+(defn animated-offset [value]
+  {:top value})

src/status_im/components/tabs/tab.cljs

@@ -2,19 +2,44 @@
   (:require-macros [status-im.utils.views :refer [defview]])
   (:require [re-frame.core :refer [subscribe dispatch dispatch-sync]]
             [status-im.components.react :refer [view
-                                                text-input
+                                                animated-view
                                                 text
                                                 image
                                                 touchable-highlight]]
             [reagent.core :as r]
-            [status-im.components.tabs.styles :as st]))
+            [status-im.components.tabs.styles :as st]
+            [status-im.components.animation :as anim]))
 
-(defview tab [{:keys [view-id title icon selected-view-id]}]
+(defn animation-logic [val]
+  (fn []
+    (anim/start (anim/spring val {:toValue 0.1
+                                  :tension 30}))))
+
+(defview tab [_]
+  (let [icon-anim-value (anim/create-value 10)
+        text-anim-value (anim/create-value 20)
+        on-update       (comp (animation-logic icon-anim-value)
+                              (animation-logic text-anim-value))]
+    (r/create-class
+      {:component-did-mount
+       on-update
+       :component-did-update
+       on-update
+       :component-will-receive-props
+       (fn []
+         (anim/set-value icon-anim-value 5)
+         (anim/set-value text-anim-value 20))
+       :reagent-render
+       (fn [{:keys [view-id title icon selected-view-id]}]
          [touchable-highlight {:style    st/tab
                                :disabled (= view-id selected-view-id)
                                :onPress  #(dispatch [:navigate-to-tab view-id])}
           [view {:style st/tab-container}
+           [animated-view {:style (st/animated-offset (if (= selected-view-id view-id)
+                                                        icon-anim-value
+                                                        0))}
             [image {:source {:uri icon}
-            :style  st/tab-icon}]
+                    :style  st/tab-icon}]]
            (when (= selected-view-id view-id)
-      [text {:style st/tab-title} title])]])
+             [animated-view {:style (st/animated-offset text-anim-value)}
+              [text {:style st/tab-title} title]])]])})))