From 17a5fcfeaa62dde2abefb9c70d05abfc8ba70ab1 Mon Sep 17 00:00:00 2001
From: Alexander Pantyuhov <alwxndr@gmail.com>
Date: Mon, 3 Oct 2016 11:59:13 +0300
Subject: [PATCH] Tab text animations (#293)

---
 src/status_im/components/tabs/styles.cljs |  3 ++
 src/status_im/components/tabs/tab.cljs    | 47 +++++++++++++++++------
 2 files changed, 39 insertions(+), 11 deletions(-)

diff --git a/src/status_im/components/tabs/styles.cljs b/src/status_im/components/tabs/styles.cljs
index 9c645c56f9..2428217666 100644
--- a/src/status_im/components/tabs/styles.cljs
+++ b/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})
diff --git a/src/status_im/components/tabs/tab.cljs b/src/status_im/components/tabs/tab.cljs
index 9ee44dcc44..ffd72cd758 100644
--- a/src/status_im/components/tabs/tab.cljs
+++ b/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]}]
-  [touchable-highlight {:style    st/tab
-                        :disabled (= view-id selected-view-id)
-                        :onPress  #(dispatch [:navigate-to-tab view-id])}
-   [view {:style st/tab-container}
-    [image {:source {:uri icon}
-            :style  st/tab-icon}]
-    (when (= selected-view-id view-id)
-      [text {:style st/tab-title} title])]])
+(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}]]
+           (when (= selected-view-id view-id)
+             [animated-view {:style (st/animated-offset text-anim-value)}
+              [text {:style st/tab-title} title]])]])})))