From 85b88321baaf99ad7133cbd195018d7ed1cab165 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=C5=81ukasz=20Rekucki?= <lrekucki@gmail.com>
Date: Tue, 9 Mar 2010 21:10:41 +0100
Subject: [PATCH] Added history to document view

---
 apps/wiki/models.py                           |   4 +
 .../wiki/templates/wiki/document_details.html |  33 ++++-
 apps/wiki/views.py                            |  27 +++-
 platforma/static/css/master.css               |  40 +++++-
 platforma/static/js/main.js                   | 127 ++++++++++++++----
 platforma/urls.py                             |   2 +
 6 files changed, 201 insertions(+), 32 deletions(-)

diff --git a/apps/wiki/models.py b/apps/wiki/models.py
index b4adba4a..ecf7837d 100644
--- a/apps/wiki/models.py
+++ b/apps/wiki/models.py
@@ -22,6 +22,9 @@ class DocumentStorage(object):
 
     def all(self):
         return list(self.vstorage.all_pages())
+    
+    def history(self, title):
+        return list(self.vstorage.page_history(title))
 
     def _info(self, name):
         return self.vstorage.page_meta(name)
@@ -41,6 +44,7 @@ class Document(object):
         except DocumentNotFound:
             return - 1
 
+    @property
     def plain_text(self):
         return re.sub(self.META_REGEX, '', self.text, 1)
 
diff --git a/apps/wiki/templates/wiki/document_details.html b/apps/wiki/templates/wiki/document_details.html
index e7a33980..95a7c95e 100644
--- a/apps/wiki/templates/wiki/document_details.html
+++ b/apps/wiki/templates/wiki/document_details.html
@@ -34,14 +34,15 @@
                 Wersja: <span id="document-revision">{{ document.revision }}</span> <button style="margin-left: 6px" id="save-button">Zapisz</button></div>
             <h1><a href="{% url wiki.views.document_list %}">Platforma</a></h1>
             <ol id="tabs">
-                <li id="simple-view-tab"><span id="document-name">{{ document.name }}</span></li>
-                <li id="source-view-tab" class="active">Kod źródłowy</li>
+                <li id="simple-view-tab" ui:related="simple-editor"><span id="document-name">{{ document.name }}</span></li>
+                <li id="source-view-tab" ui:related="source-editor">Kod źródłowy</li>
+				<li id="history-view-tab" ui:related="history-viewer">Historia</li>
             </ol>
             <div style="clear: both"></div>
         </div>
         <div id="splitter">
             <div id="editor">
-                <div id="source-editor">
+                <div id="source-editor" class="editor">
                     {% toolbar %}
                     <textarea name="text" id="id_text">{{ document.plain_text }}</textarea>
                     <input type="hidden" name="name" value="{{ document.name }}" />
@@ -49,7 +50,7 @@
                     <input type="hidden" name="comment" value="no comment" />
                     <input type="hidden" name="revision" value="{{ document.revision }}" />
                 </div>
-                <div id="simple-editor" style="display: none">
+                <div id="simple-editor" class="editor" style="display: none">
                     <div class="toolbar">
                         <button id="insert-theme-button">Wstaw motyw</button> <button id="insert-annotation-button">Wstaw przypis</button>
                         <div class="toolbar-end"> </div>
@@ -57,6 +58,30 @@
                     <div id="html-view" class="htmlview">
                     </div>
                 </div>
+				
+				<div id="history-viewer" class="editor" style="display: none">
+					<div class="toolbar"> </div>
+					<div id="history-view">
+						<p class="message-box" style="display:none;"></p>
+						<table>
+							<thead>			
+								<th>&nbsp;</th>					
+								<th>Numer</th>
+								<th>Opis</th>
+								<th>Użytkownik</th>
+								<th>Data</th>
+							</thead>
+							<tbody id="changes-list">																
+							</tbody>
+						</table>
+						
+						<p><button type="button" id="make-diff-button">Porównaj</button></p>
+						<!-- <p><button type="button" id="more-history-button">Więcej</button></p> -->
+						<div id="diff-view">																		
+					</div>									
+				</div>							
+							
+				</div>
             </div>
             <div class="vsplitbar"> </div>
             <div id="sidebar">
diff --git a/apps/wiki/views.py b/apps/wiki/views.py
index baf30a7a..931cf78d 100644
--- a/apps/wiki/views.py
+++ b/apps/wiki/views.py
@@ -7,6 +7,17 @@ from django.utils import simplejson as json
 
 from wiki.models import storage, Document, DocumentNotFound
 from wiki.forms import DocumentForm
+from datetime import datetime
+
+# import google_diff
+import difflib
+
+
+class DateTimeEncoder(json.JSONEncoder):
+     def default(self, obj):
+         if isinstance(obj, datetime):
+             return datetime.ctime(obj) + " " + (datetime.tzname(obj) or 'GMT')
+         return json.JSONEncoder.default(self, obj)
 
 def document_list(request, template_name = 'wiki/document_list.html'):
     return direct_to_template(request, template_name, extra_context = {
@@ -26,7 +37,7 @@ def document_detail(request, name, template_name = 'wiki/document_details.html')
         form = DocumentForm(request.POST, instance = document)
         if form.is_valid():
             document = form.save()
-            return HttpResponse(json.dumps({'text': document.plain_text(), 'meta': document.meta(), 'revision': document.revision()}))
+            return HttpResponse(json.dumps({'text': document.plain_text, 'meta': document.meta(), 'revision': document.revision()}))
         else:
             return HttpResponse(json.dumps({'errors': form.errors}))
     else:
@@ -49,3 +60,17 @@ def document_gallery(request, directory):
         traceback.print_exc()
 
         raise Http404
+    
+def document_diff(request, name, revA, revB):
+    differ = difflib.HtmlDiff(wrapcolumn=60)
+     
+    docA = storage.get(name, int(revA))
+    docB = storage.get(name, int(revB))
+     
+    return HttpResponse(differ.make_table(
+                                docA.plain_text.splitlines(),
+                                docB.plain_text.splitlines() ) )                                           
+    
+    
+def document_history(reuqest, name):
+    return HttpResponse( json.dumps(storage.history(name), cls=DateTimeEncoder), mimetype='application/json')
diff --git a/platforma/static/css/master.css b/platforma/static/css/master.css
index 5884d8aa..d2768be9 100644
--- a/platforma/static/css/master.css
+++ b/platforma/static/css/master.css
@@ -23,7 +23,7 @@ body {
     cursor: e-resize;
 }
 
-#source-editor, #simple-editor {
+#source-editor, #simple-editor, #history-viewer {
     position: absolute;
     top: 25px;
     bottom: 0;
@@ -32,7 +32,7 @@ body {
     overflow: hidden;
 }
 
-#html-view {
+#html-view, #history-view {
     overflow: auto;
     position: absolute;
     top: 27px;
@@ -279,4 +279,38 @@ p { margin: 0;}
 	
 	width: 40px;		
 } 
- 
\ No newline at end of file
+ 
+/* DIFFS */
+ #history-view table {
+ 	width: 75%;
+	margin: 1em auto;
+	max-height: 400px;
+	overflow-y: auto;
+ }
+ 
+ #diff-view {
+ 	border: 2px solid black;
+	background: #fafafa;
+	margin: 1em auto;
+	width: 90%; 	
+ }
+ 
+ td.diff_header {
+ 	display: none;
+ }
+ 
+ td.diff_next {
+ 	display: none;
+ }
+
+ .diff_sub {
+ 	background-color: #ef4040;
+ }
+ 
+ .diff_chg {
+ 	background-color: #efef40;
+ }
+ 
+ .diff_add {
+ 	background-color: #40ef40;
+ }
diff --git a/platforma/static/js/main.js b/platforma/static/js/main.js
index 3c1a3c00..a92dfe4a 100644
--- a/platforma/static/js/main.js
+++ b/platforma/static/js/main.js
@@ -676,6 +676,78 @@ function html(element) {
     });
 }
 
+/*
+ * History
+ */
+
+function refreshHistory(callback){
+	$.blockUI({
+		message: 'Odświeżanie historii...'
+	});
+	
+	$.ajax({
+		url: document.location.href + '/history',
+        dataType: 'json',
+		error: function() {
+			$('#history-view .message-box').html('Nie udało się odświeżyć historii').show();
+			$.unblockUI();		
+		},
+		success: function(data) {
+			$('#history-view .message-box').hide();
+			var changes_list = $('#changes-list');
+			changes_list.html('');
+			
+			$.each(data, function() {
+				var val = this[0];
+				changes_list.append('<tr>'
+					+'<td><input type="radio" name="rev_from" value="'+val+'">'
+						+ '<input type="radio" name="rev_to" value="'+val+'">'
+					+'<td>'+ this[0]+'</td>'
+					+'<td>'+ this[3]+'</td>'
+					+'<td>'+ this[2]+'</td>'
+					+'<td>'+ this[1]+'</td></tr>')			
+			});							
+			$.unblockUI();	
+			callback();
+		}
+	});
+};
+
+function historyDiff(callback) {
+	var changelist = $('#changes-list');
+	var rev_a = $("input[name='rev_from']:checked", changelist);
+	var rev_b = $("input[name='rev_to']:checked", changelist);
+	
+	if (rev_a.length != 1 || rev_b.length != 1) {
+		window.alert("Musisz zaznaczyć dwie wersje do porównania.");
+		return false;
+	}
+	
+	if (rev_a.val() == rev_b.val()) {
+		window.alert("Musisz zaznaczyć dwie różne wersje do porównania.");
+		return false;
+	}
+			
+	$.blockUI({
+		message: 'Wczytywanie porównania...'
+	});
+	
+	$.ajax({
+		url: document.location.href + '/diff/'+rev_a.val() + '/'+ rev_b.val(),
+        dataType: 'html',
+		error: function() {
+			$.unblockUI();
+			window.alert('Nie udało się wykonać porównania :(.')					
+		},
+		success: function(data) {
+			$.unblockUI();			
+			var diffview = $('#diff-view');			
+			diffview.html(data);
+			diffview.show();							
+		}
+	});
+}
+	
 
 $(function() {
     gallery('#sidebar', $('#document-meta .gallery').html());
@@ -690,7 +762,7 @@ $(function() {
         },
         iframeClass: 'xml-iframe',
         textWrapping: true,
-		lineNumbers: true,
+		/* lineNumbers: true, */
         tabMode: 'spaces',
         indentUnit: 0,
         initCallback: function(editor) {
@@ -747,29 +819,31 @@ $(function() {
             $('#save-cancel').click(function() {
                 $.unblockUI();
             });
-            
-            function changeTab(callback) {
-                if ($('#simple-view-tab').hasClass('active')) {
-                    return;
-                }
-                $('#simple-view-tab').addClass('active');
-                $('#source-view-tab').removeClass('active');
-                $('#source-editor').hide();
-                $('#simple-editor').show();
+            			
+            var tabs = $('ol#tabs li');
+			
+			tabs.click(function(event, callback) {
+				tabs.removeClass('active');
+				$('.editor').hide();
+				$(this).addClass('active');
+				$('#' + $(this).attr('ui:related')).show();				
+				$(this).trigger('wl:tabload', callback);								
+			});	
+			
+			
+            $('#simple-view-tab').bind('wl:tabload', function(event, callback) {
                 transform(editor, callback);
-            }        
-            $('#simple-view-tab').click(function() { changeTab(); });
-            
-            $('#source-view-tab').click(function() { 
-                if ($(this).hasClass('active')) {
-                    return;
-                }
-                $(this).addClass('active');
-                $('#simple-view-tab').removeClass('active');
-                $('#simple-editor').hide();
-                $('#source-editor').show();
-                reverseTransform(editor);    
             });
+			
+			$('#source-view-tab').bind('wl:tabload', function(event, callback) {
+                reverseTransform(editor, callback);
+            });			                
+			
+			$('#history-view-tab').bind('wl:tabload', function(event, callback) {
+				refreshHistory(callback);								
+			}); 
+			
+			$('#make-diff-button').click(historyDiff);
 
             $('#source-editor .toolbar button').click(function(event) {
                 event.preventDefault();
@@ -777,7 +851,7 @@ $(function() {
                 scriptletCenter.scriptlets[$(this).attr('ui:action')](editor, params);
             });			
 
-            $('.toolbar select').change(function() {
+            $('.toolbar select').change(function(event) {
                 var slug = $(this).val();
 
                 $('.toolbar-buttons-container').hide().filter('[data-group=' + slug + ']').show();
@@ -787,7 +861,12 @@ $(function() {
             $('.toolbar-buttons-container').hide();
             $('.toolbar select').change();
 
-            changeTab(function() { $('#loading-overlay').fadeOut() }, function() { $('#loading-overlay').fadeOut() }, true)
+			
+			$('#simple-view-tab').trigger('click', 
+				function() { 
+					$('#loading-overlay').fadeOut();
+					return false; 
+				});            
         }
     });
     
diff --git a/platforma/urls.py b/platforma/urls.py
index bd296a92..9b4b1a28 100644
--- a/platforma/urls.py
+++ b/platforma/urls.py
@@ -9,6 +9,8 @@ admin.autodiscover()
 urlpatterns = patterns('',
     url(r'^$', 'wiki.views.document_list'),
     url(r'^gallery/(?P<directory>[^/]+)$', 'wiki.views.document_gallery'),
+    url(r'^(?P<name>[^/]+)/history$', 'wiki.views.document_history'),
+    url(r'^(?P<name>[^/]+)/diff/(?P<revA>\d+)/(?P<revB>\d+)$', 'wiki.views.document_diff'),
 
     # Auth
     url(r'^accounts/login/$', 'django_cas.views.login', name = 'login'),
-- 
2.20.1