1 files changed, 31 insertions, 0 deletions
diff --git a/app/assets/javascripts/lib/url_utility.js.coffee b/app/assets/javascripts/lib/url_utility.js.coffee
new file mode 100644
index 00000000000..abd556e0b4e
--- /dev/null
+++ b/app/assets/javascripts/lib/url_utility.js.coffee
@@ -0,0 +1,31 @@
+((w) ->
+
+  w.gl ?= {}
+  w.gl.utils ?= {}
+
+  w.gl.utils.getUrlParameter = (sParam) ->
+    sPageURL = decodeURIComponent(window.location.search.substring(1))
+    sURLVariables = sPageURL.split('&')
+    sParameterName = undefined
+    i = 0
+    while i < sURLVariables.length
+      sParameterName = sURLVariables[i].split('=')
+      if sParameterName[0] is sParam
+        return if sParameterName[1] is undefined then true else sParameterName[1]
+      i++
+
+  # #
+  #  @param {Object} params - url keys and value to merge
+  #  @param {String} url
+  # #
+  w.gl.utils.mergeUrlParams = (params, url) ->
+    newUrl = decodeURIComponent(url)
+    for paramName, paramValue of params
+      pattern = new RegExp "\\b(#{paramName}=).*?(&|$)"
+      if url.search(pattern) >= 0
+        newUrl = newUrl.replace pattern, "$1#{paramValue}$2"
+      else
+        newUrl = "#{newUrl}#{(if newUrl.indexOf('?') > 0 then '&' else '?')}#{paramName}=#{paramValue}"
+    newUrl
+
+) window