From be8372e7ccfb0c2cb63a238bb6c34d6e8cdbc839 Mon Sep 17 00:00:00 2001
From: Go MAEDA <maeda@farend.jp>
Date: Sun, 4 Aug 2019 09:42:58 +0000
Subject: Previous and next month links in gantt (#31373).

Patch by Mizuki ISHIKAWA.


git-svn-id: http://svn.redmine.org/redmine/trunk@18346 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 app/helpers/application_helper.rb | 36 ++++++++++++++++++++++++++++++++++++
 app/helpers/calendars_helper.rb   | 38 --------------------------------------
 app/views/gantts/show.html.erb    |  9 +++++++--
 3 files changed, 43 insertions(+), 40 deletions(-)

(limited to 'app')

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 60f80ed20..5fb994c19 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -298,6 +298,42 @@ module ApplicationHelper
     link_to(name, "#", :onclick => onclick)
   end
 
+  def link_to_previous_month(year, month, options={})
+    target_year, target_month = if month == 1
+                                  [year - 1, 12]
+                                else
+                                  [year, month - 1]
+                                end
+
+    name = if target_month == 12
+             "#{month_name(target_month)} #{target_year}"
+           else
+             month_name(target_month)
+           end
+
+    link_to_month(("« " + name), target_year, target_month, options)
+  end
+
+  def link_to_next_month(year, month, options={})
+    target_year, target_month = if month == 12
+                                  [year + 1, 1]
+                                else
+                                  [year, month + 1]
+                                end
+
+    name = if target_month == 1
+             "#{month_name(target_month)} #{target_year}"
+           else
+             month_name(target_month)
+           end
+
+    link_to_month((name + " »"), target_year, target_month, options)
+  end
+
+  def link_to_month(link_name, year, month, options={})
+    link_to(link_name, {:params => request.query_parameters.merge(:year => year, :month => month)}, options)
+  end
+
   # Used to format item titles on the activity view
   def format_activity_title(text)
     text
diff --git a/app/helpers/calendars_helper.rb b/app/helpers/calendars_helper.rb
index 0cb071c34..a248eab97 100644
--- a/app/helpers/calendars_helper.rb
+++ b/app/helpers/calendars_helper.rb
@@ -20,44 +20,6 @@
 module CalendarsHelper
   include Redmine::Utils::DateCalculation
 
-  def link_to_previous_month(year, month, options={})
-    target_year, target_month = if month == 1
-                                  [year - 1, 12]
-                                else
-                                  [year, month - 1]
-                                end
-
-    name = if target_month == 12
-             "#{month_name(target_month)} #{target_year}"
-           else
-             "#{month_name(target_month)}"
-           end
-
-    # \xc2\xab(utf-8) = &#171;
-    link_to_month(("\xc2\xab " + name), target_year, target_month, options)
-  end
-
-  def link_to_next_month(year, month, options={})
-    target_year, target_month = if month == 12
-                                  [year + 1, 1]
-                                else
-                                  [year, month + 1]
-                                end
-
-    name = if target_month == 1
-             "#{month_name(target_month)} #{target_year}"
-           else
-             "#{month_name(target_month)}"
-           end
-
-    # \xc2\xbb(utf-8) = &#187;
-    link_to_month((name + " \xc2\xbb"), target_year, target_month, options)
-  end
-
-  def link_to_month(link_name, year, month, options={})
-    link_to(link_name, {:params => request.query_parameters.merge(:year => year, :month => month)}, options)
-  end
-
   def calendar_day_css_classes(calendar, day)
     css = day.month==calendar.month ? +'even' : +'odd'
     css << " today" if User.current.today == day
diff --git a/app/views/gantts/show.html.erb b/app/views/gantts/show.html.erb
index 00dd2c230..348d04b69 100644
--- a/app/views/gantts/show.html.erb
+++ b/app/views/gantts/show.html.erb
@@ -70,8 +70,13 @@
 </div>
 
 <p class="contextual">
-  <%= gantt_zoom_link(@gantt, :in) %>
-  <%= gantt_zoom_link(@gantt, :out) %>
+  <span>
+    <%= gantt_zoom_link(@gantt, :in) %>
+    <%= gantt_zoom_link(@gantt, :out) %>
+  </span>
+  <span>
+    <%= link_to_previous_month(@gantt.year_from, @gantt.month_from, :accesskey => accesskey(:previous)) %> | <%= link_to_next_month(@gantt.year_from, @gantt.month_from, :accesskey => accesskey(:next)) %>
+  </span>
 </p>
 
 <p class="buttons">
-- 
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