1 files changed, 42 insertions, 1 deletions
diff --git a/frontend/app/utils/index.js b/frontend/app/utils/index.js
index bb5e01d..d67d89a 100644
--- a/frontend/app/utils/index.js
+++ b/frontend/app/utils/index.js
@@ -8,6 +8,7 @@ export const formatDateTime = dateStr => format(new Date(dateStr), 'd MMM yyyy H
 export const formatDate = dateStr => format(new Date(dateStr), 'd MMM yyyy')
 export const formatTime = dateStr => format(new Date(dateStr), 'H:mm')
 export const formatAge = dateStr => formatDistance(new Date(), new Date(dateStr)) + ' ago.'
+export const unslugify = fn => fn.replace(/-/g, ' ').replace(/_/g, ' ').replace('.mp3', '')
 
 /* Mobile check */
 
@@ -49,7 +50,8 @@ export const pad = (n, m) => {
 }
 
 export const courtesyS = (n, s) => n + ' ' + (n === 1 ? s : s + 's')
-
+export const capitalize = s => s.split(' ').map(capitalizeWord).join(' ')
+export const capitalizeWord = s => s.substr(0, 1).toUpperCase() + s.substr(1)
 export const padSeconds = n => n < 10 ? '0' + n : n
 
 export const timestamp = (n = 0, fps = 25) => {
@@ -61,6 +63,16 @@ export const timestamp = (n = 0, fps = 25) => {
   }
   return (n % 60) + ':' + s
 }
+export const timestampToSeconds = time_str => {
+  const time_str_parts = (time_str || "").trim().split(":").map(s => parseFloat(s))
+  if (time_str_parts.length === 3) {
+    return (time_str_parts[0] * 60 + time_str_parts[1]) * 60 + time_str_parts[2]
+  }
+  if (time_str_parts.length === 2) {
+    return time_str_parts[0] * 60 + time_str_parts[1]
+  }
+  return time_str_parts[0]
+}
 
 export const percent = n => (n * 100).toFixed(1) + '%'
 
@@ -120,6 +132,35 @@ export const preloadImage = url => (
   })
 )
 
+export const preloadVideo = url => (
+  new Promise((resolve, reject) => {
+    const video = document.createElement('video')
+    let loaded = false
+    const bind = () => {
+      video.addEventListener('loadedmetadata', onload)
+      video.addEventListener('error', onerror)
+    }
+    const unbind = () => {
+      video.removeEventListener('loadedmetadata', onload)
+      video.removeEventListener('error', onerror)
+    }
+    const onload = () => {
+      if (loaded) return
+      loaded = true
+      unbind()
+      resolve(video)
+    }
+    const onerror = (error) => {
+      if (loaded) return
+      loaded = true
+      unbind()
+      reject(error)
+    }
+    bind()
+    video.src = url
+  })
+)
+
 export const cropImage = (url, crop) => {
   return new Promise((resolve, reject) => {
     let { x, y, w, h } = crop