Allow collapse/expand in gantt chart (#6417).

Patch by Yuichi HARADA.


git-svn-id: http://svn.redmine.org/redmine/trunk@17925 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/gantts/show.html.erb

@@ -375,6 +375,7 @@
     resizableSubjectColumn();
     $("#draw_relations").change(drawGanttHandler);
     $("#draw_progress_line").change(drawGanttHandler);
+    $('div.gantt_subjects .expander').on('click', ganttEntryClick);
   });
   $(window).resize(function() {
     drawGanttHandler();

lib/redmine/helpers/gantt.rb

@@ -195,6 +195,7 @@ module Redmine
         options = {:top => 0, :top_increment => 20,
                    :indent_increment => 20, :render => :subject,
                    :format => :html}.merge(options)
+        options[:indent_increment] += 12 if options[:format] == :html
         indent = options[:indent] || 4
         @subjects = '' unless options[:only] == :lines
         @lines = '' unless options[:only] == :subjects
@@ -221,7 +222,9 @@ module Redmine
           # then render project versions and their issues
           versions = project_versions(project)
           self.class.sort_versions!(versions)
+          indent = options[:indent]
           versions.each do |version|
+            options[:indent] = indent
             render_version(project, version, options)
           end
         end
@@ -698,21 +701,38 @@ module Redmine
       end
 
       def html_subject(params, subject, object)
-        style = "position: absolute;top:#{params[:top]}px;left:#{params[:indent]}px;"
-        style << "width:#{params[:subject_width] - params[:indent]}px;" if params[:subject_width]
         content = html_subject_content(object) || subject
-        tag_options = {:style => style}
+        tag_options = {}
         case object
         when Issue
           tag_options[:id] = "issue-#{object.id}"
           tag_options[:class] = "issue-subject hascontextmenu"
           tag_options[:title] = object.subject
+          children = object.children & project_issues(object.project)
+          has_children = children.present? && (children.collect(&:fixed_version).uniq & [object.fixed_version]).present?
         when Version
           tag_options[:id] = "version-#{object.id}"
           tag_options[:class] = "version-name"
+          has_children = object.fixed_issues.exists?
         when Project
           tag_options[:class] = "project-name"
+          has_children = object.issues.exists? || object.versions.exists?
         end
+        tag_options[:data] = {
+          :collapse_expand => {
+            :top_increment => params[:top_increment],
+            :obj_id => "#{object.class}-#{object.id}".downcase,
+          },
+        }
+        if has_children
+          content = view.content_tag(:span, nil, :class => :expander) + content
+          params = params.dup
+          params[:indent] -= 12 if params[:indent] >= 12
+          tag_options[:class] << ' open'
+        end
+        style = "position: absolute;top:#{params[:top]}px;left:#{params[:indent]}px;"
+        style << "width:#{params[:subject_width] - params[:indent]}px;" if params[:subject_width]
+        tag_options[:style] = style
         output = view.content_tag(:div, content, tag_options)
         @subjects << output
         output
@@ -751,6 +771,9 @@ module Redmine
 
       def html_task(params, coords, markers, label, object)
         output = ''
+        data_options = {
+          :collapse_expand => "#{object.class}-#{object.id}".downcase,
+        }
 
         css = "task " + case object
           when Project
@@ -774,13 +797,15 @@ module Redmine
           html_id = "task-todo-version-#{object.id}" if object.is_a?(Version)
           content_opt = {:style => style,
                          :class => "#{css} task_todo",
-                         :id => html_id}
+                         :id => html_id,
+                         :data => {}}
           if object.is_a?(Issue)
             rels = issue_relations(object)
             if rels.present?
               content_opt[:data] = {"rels" => rels.to_json}
             end
           end
+          content_opt[:data].merge!(data_options)
           output << view.content_tag(:div, '&nbsp;'.html_safe, content_opt)
           if coords[:bar_late_end]
             width = coords[:bar_late_end] - coords[:bar_start] - 2
@@ -790,7 +815,8 @@ module Redmine
             style << "width:#{width}px;"
             output << view.content_tag(:div, '&nbsp;'.html_safe,
                                        :style => style,
-                                       :class => "#{css} task_late")
+                                       :class => "#{css} task_late",
+                                       :data => data_options)
           end
           if coords[:bar_progress_end]
             width = coords[:bar_progress_end] - coords[:bar_start] - 2
@@ -803,7 +829,8 @@ module Redmine
             output << view.content_tag(:div, '&nbsp;'.html_safe,
                                        :style => style,
                                        :class => "#{css} task_done",
-                                       :id => html_id)
+                                       :id => html_id,
+                                       :data => data_options)
           end
         end
         # Renders the markers
@@ -815,7 +842,8 @@ module Redmine
             style << "width:15px;"
             output << view.content_tag(:div, '&nbsp;'.html_safe,
                                        :style => style,
-                                       :class => "#{css} marker starting")
+                                       :class => "#{css} marker starting",
+                                       :data => data_options)
           end
           if coords[:end]
             style = ""
@@ -824,7 +852,8 @@ module Redmine
             style << "width:15px;"
             output << view.content_tag(:div, '&nbsp;'.html_safe,
                                        :style => style,
-                                       :class => "#{css} marker ending")
+                                       :class => "#{css} marker ending",
+                                       :data => data_options)
           end
         end
         # Renders the label on the right
@@ -835,7 +864,8 @@ module Redmine
           style << "width:15px;"
           output << view.content_tag(:div, label,
                                      :style => style,
-                                     :class => "#{css} label")
+                                     :class => "#{css} label",
+                                     :data => data_options)
         end
         # Renders the tooltip
         if object.is_a?(Issue) && coords[:bar_start] && coords[:bar_end]
@@ -851,7 +881,8 @@ module Redmine
           style << "height:12px;"
           output << view.content_tag(:div, s.html_safe,
                                      :style => style,
-                                     :class => "tooltip hascontextmenu")
+                                     :class => "tooltip hascontextmenu",
+                                     :data => data_options)
         end
         @lines << output
         output

public/javascripts/gantt.js

@@ -17,6 +17,7 @@ function setDrawArea() {
 function getRelationsArray() {
   var arr = new Array();
   $.each($('div.task_todo[data-rels]'), function(index_div, element) {
+    if(!$(element).is(':visible')) return true;
     var element_id = $(element).attr("id");
     if (element_id != null) {
       var issue_id = element_id.replace("task-todo-issue-", "");
@@ -106,6 +107,7 @@ function getProgressLinesArray() {
   var today_left = $('#today_line').position().left;
   arr.push({left: today_left, top: 0});
   $.each($('div.issue-subject, div.version-name'), function(index, element) {
+    if(!$(element).is(':visible')) return true;
     var t = $(element).position().top - draw_top ;
     var h = ($(element).height() / 9);
     var element_top_upper  = t - h;
@@ -169,7 +171,7 @@ function drawGanttHandler() {
     draw_gantt = Raphael(folder);
   setDrawArea();
   if ($("#draw_progress_line").prop('checked'))
-    drawGanttProgressLines();
+    try{drawGanttProgressLines();}catch(e){}
   if ($("#draw_relations").prop('checked'))
     drawRelations();
 }
@@ -195,3 +197,59 @@ function resizableSubjectColumn(){
     $('td.gantt_subjects_column').resizable('enable');
   };
 }
+
+ganttEntryClick = function(e){
+  var subject = $(e.target.parentElement);
+  var subject_left = parseInt(subject.css('left'));
+  var target_shown = null;
+  var target_top = 0;
+  var total_height = 0;
+  var out_of_hierarchy = false;
+  var iconChange = null;
+  if(subject.hasClass('open'))
+    iconChange = function(element){
+      $(element).removeClass('open');
+    };
+  else
+    iconChange = function(element){
+      $(element).addClass('open');
+    };
+  iconChange(subject);
+  subject.nextAll('div').each(function(_, element){
+    var el = $(element);
+    var json = el.data('collapse-expand');
+    if(out_of_hierarchy || parseInt(el.css('left')) <= subject_left){
+      out_of_hierarchy = true;
+      if(target_shown == null) return false;
+
+      var new_top_val = parseInt(el.css('top')) + total_height * (target_shown ? -1 : 1);
+      el.css('top', new_top_val);
+      $('#gantt_area form > div[data-collapse-expand="' + json.obj_id + '"]').each(function(_, task){
+        $(task).css('top', new_top_val);
+      });
+      return true;
+    }
+
+    var is_shown = el.is(':visible');
+    if(target_shown == null){
+      target_shown = is_shown;
+      target_top = parseInt(el.css('top'));
+      total_height = 0;
+    }
+    if(is_shown == target_shown){
+      $('#gantt_area form > div[data-collapse-expand="' + json.obj_id + '"]').each(function(_, task){
+        var el_task = $(task);
+        if(!is_shown)
+          el_task.css('top', target_top + total_height);
+        if(!el_task.hasClass('tooltip'))
+          el_task.toggle(!is_shown);
+      });
+      if(!is_shown)
+        el.css('top', target_top + total_height);
+      iconChange(el);
+      el.toggle(!is_shown);
+      total_height += parseInt(json.top_increment);
+    }
+  });
+  drawGanttHandler();
+};

public/stylesheets/application.css

@@ -291,8 +291,10 @@ tr.entry td.age { text-align: right; }
 tr.entry.file td.filename a { margin-left: 16px; }
 tr.entry.file td.filename_no_report a { margin-left: 16px; }
 
-tr span.expander {background: url(../images/arrow_right.png) no-repeat 2px 50%; padding-left: 8px; margin-left: 0; cursor: pointer;}
+tr span.expander, .gantt_subjects div > span.expander {background: url(../images/arrow_right.png) no-repeat 2px 50%; padding-left: 8px; margin-left: 0; cursor: pointer;}
-tr.open span.expander {background-image: url(../images/arrow_down.png);}
+tr.open span.expander, .gantt_subjects div.open > span.expander {background-image: url(../images/arrow_down.png);}
+.gantt_subjects div > span.expander {padding-left: 12px;}
+.gantt_subjects div > span .icon-gravatar {float: none;}
 
 tr.changeset { height: 20px }
 tr.changeset ul, ol { margin-top: 0px; margin-bottom: 0px; }