Server-side refactor.
[redakcja.git] / project / static / js / editor.js
1 function Panel(panelWrap) {
2         var self = this;
3         self.wrap = panelWrap;
4         self.contentDiv = $('.panel-content', panelWrap);
5         self.instanceId = Math.ceil(Math.random() * 1000000000);
6         $.log('new panel - wrap: ', self.wrap);
7         
8         $(document).bind('panel:unload.' + self.instanceId, 
9                         function(event, data) { self.unload(event, data); });   
10
11         $(document).bind('panel:contentChanged', function(event, data) {
12                 $.log(self, ' got changed event from: ', data);
13                 if(self != data) 
14                         self.otherPanelChanged(event.target);
15                 else 
16                         self.markChanged();
17
18                 return false;           
19         });
20 }
21
22 Panel.prototype.callHook = function(hookName) {
23         if(this.hooks && this.hooks[hookName])
24         {       
25 //              arguments.shift();
26                 $.log('calling hook: ', hookName, 'with args: ', arguments);
27                 return this.hooks[hookName].apply(this, arguments);
28         }
29 }
30
31 Panel.prototype.load = function (url) {
32     $.log('preparing xhr load: ', this.wrap);
33     $(document).trigger('panel:unload', this);
34         var self = this;
35         self.current_url = url;
36
37     $.ajax({
38         url: url,
39         dataType: 'html',
40                 success: function(data, tstat) {
41                         panel_hooks = null;
42                         $(self.contentDiv).html(data);
43                         self.hooks = panel_hooks;                       
44                         panel_hooks = null;
45                         self.callHook('load');
46                 },
47         error: function(request, textStatus, errorThrown) {
48             $.log('ajax', url, this.target, 'error:', textStatus, errorThrown);
49         }
50     });
51 }
52
53 Panel.prototype.unload = function(event, data) {
54         $.log('got unload signal', this, ' target: ', data);
55
56         if( data == this ) {
57                 $.log('unloading', this);
58         $(this.contentDiv).html('');
59                 this.callHook('unload');
60                 this.hooks = null; // flush the hooks
61                 return false;
62     };
63 }
64
65 Panel.prototype.refresh = function(event, data) {
66         $('.change-notification', this.wrap).fadeOut();
67         $.log('refreshing view for panel ', this.current_url);
68         this.load(this.current_url);
69 //      if( this.callHook('refresh') )
70
71
72 Panel.prototype.otherPanelChanged = function(other) {
73         $.log('panel ', other, ' changed.');
74         $('.change-notification', this.wrap).fadeIn();
75         this.callHook('dirty');
76 }       
77
78 Panel.prototype.markChanged = function () {
79         if(!this.wrap.hasClass('changed') ) // TODO: is this needed ?
80                 this.wrap.addClass('changed');
81 }
82
83 Panel.prototype.changed = function () {
84         return this.wrap.hasClass('changed');
85 }
86
87 Panel.prototype.unmarkChanged = function () {
88         this.wrap.removeClass('changed');
89 }
90
91 Panel.prototype.saveInfo = function() {
92         var saveInfo = {};
93         this.callHook('saveInfo', saveInfo);
94         return saveInfo;
95 }
96
97
98 function Editor() {
99         // editor initialization
100         // this is probably a good place to set config
101 }
102
103 Editor.prototype.setupUI = function() {
104         // set up the UI visually and attach callbacks
105         var self = this;
106         var panelRoot = $('#panels');
107         self.rootDiv = panelRoot;
108
109         panelRoot.makeHorizPanel({}); // TODO: this probably doesn't belong into jQuery
110     panelRoot.css('top', ($('#header').outerHeight() ) + 'px');
111
112         $('#panels > *.panel-wrap').each(function() {
113                 var panelWrap = $(this);
114                 $.log('wrap: ', panelWrap);
115                 panelWrap.data('ctrl', new Panel(panelWrap)); // attach controllers to wraps
116
117             $('.panel-toolbar select', panelWrap).change(function() {
118                         panelWrap.data('ctrl').load( $(this).val() );
119             });
120         });     
121
122         $('#toolbar-button-save').click( function (event, data) { self.saveToBranch(); } );
123
124
125 }
126
127 Editor.prototype.loadConfig = function() {
128         // load options from cookie 
129 }
130
131 Editor.prototype.saveToBranch = function() {
132         var changed_panel = $('.panel-wrap.changed');
133         var self = this;
134         $.log('Saving to local branch - panel:', changed_panel);
135
136         if( changed_panel.length == 0) {
137                 $.log('Nothing to save.');
138                 return; /* no changes */
139         }
140
141         if( changed_panel.length > 1) {
142                 alert('Błąd: więcej niż jeden panel został zmodyfikowany. Nie można zapisać.');
143                 return;
144         }
145
146         saveInfo = changed_panel.data('ctrl').saveInfo();
147
148         $.ajax({
149                 url: saveInfo.url,
150                 dataType: 'json',
151                 success: function(data, textStatus) {
152                         if (data.result != 'ok')
153                                 $.log('save errors: ', data.errors)
154                         else 
155                                 self.refreshPanels(changed_panel);
156                 },
157                 error: function(rq, tstat, err) {
158                         $.log('save error', rq, tstat, err);
159                 },
160                 type: 'POST',
161                 data: saveInfo.postData
162         });
163 };
164
165 Editor.prototype.refreshPanels = function(goodPanel) {
166         var self = this;
167         var panels = $('#' + self.rootDiv.attr('id') +' > *.panel-wrap', self.rootDiv.parent());
168
169         panels.each(function() {
170                 var panel = $(this).data('ctrl');
171                 $.log(this, panel);
172                 if ( panel.changed() )
173                         panel.unmarkChanged();
174                 else 
175                         panel.refresh();
176         });
177 };              
178
179 $(function() {
180         editor = new Editor();
181
182         // do the layout
183         editor.loadConfig();
184         editor.setupUI();
185 });