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 });