Merge branch 'fix_missing_filters_on_status_tab_change' into 'master'

Fix missing filters on status tab when user swithches to another state

closes #14769 

![fixi](/uploads/7733ec714b70b2157104af4b039953c3/fixi.gif)

See merge request !3482

2 files changed, 46 insertions, 0 deletions

diff --git a/app/assets/javascripts/issues.js.coffee b/app/assets/javascripts/issues.js.coffee
index b1479bfb449..0d9f2094c2a 100644
--- a/app/assets/javascripts/issues.js.coffee
+++ b/app/assets/javascripts/issues.js.coffee
@@ -26,6 +26,20 @@
 
     $(".selected_issue").bind "change", Issues.checkChanged
 
+  # Update state filters if present in page
+  updateStateFilters: ->
+    stateFilters =  $('.issues-state-filters')
+    newParams = {}
+    paramKeys = ['author_id', 'label_name', 'milestone_title', 'assignee_id', 'issue_search']
+
+    for paramKey in paramKeys
+      newParams[paramKey] = gl.utils.getUrlParameter(paramKey) or ''
+
+    if stateFilters.length
+      stateFilters.find('a').each ->
+        initialUrl = $(this).attr 'href'
+        $(this).attr 'href', gl.utils.mergeUrlParams(newParams, initialUrl)
+
   # Make sure we trigger ajax request only after user stop typing
   initSearch: ->
     @timer = null
@@ -54,6 +68,7 @@
         # Change url so if user reload a page - search results are saved
         history.replaceState {page: issuesUrl}, document.title, issuesUrl
         Issues.reload()
+        Issues.updateStateFilters()
       dataType: "json"
 
   checkChanged: ->
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