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     // Set panel widths from options.panels
 110     if (self.options && self.options.panels) {
 111         var totalWidth = 0;
 112         $('.panel-wrap', panelRoot).each(function(index) {
 113             var panelWidth = self.options.panels[index].ratio * panelRoot.width();
 114             if ($(this).hasClass('last-panel')) {
 115                 $(this).css({
 116                     left: totalWidth,
 117                     right: 0,
 118                 });
 119             } else {
 120                 $(this).css({
 121                     left: totalWidth,
 122                     width: panelWidth,
 123                 });
 124                 totalWidth += panelWidth;
 125             }
 126             $('.panel-toolbar select', this).val(
 127                 $('.panel-toolbar option[name=' + self.options.panels[index].name + ']', this).attr('value')
 128             )
 129         });
 130     }
 131
 132         panelRoot.makeHorizPanel({}); // TODO: this probably doesn't belong into jQuery
 133     panelRoot.css('top', ($('#header').outerHeight() ) + 'px');
 134
 135         $('#panels > *.panel-wrap').each(function() {
 136                 var panelWrap = $(this);
 137                 $.log('wrap: ', panelWrap);
 138                 panel = new Panel(panelWrap);
 139                 panelWrap.data('ctrl', panel); // attach controllers to wraps
 140         panel.load($('.panel-toolbar select', panelWrap).val());
 141
 142             $('.panel-toolbar select', panelWrap).change(function() {
 143                 var url = $(this).val();
 144                         panelWrap.data('ctrl').load(url);
 145                         var panels = [];
 146                         $('.panel-wrap', panelRoot).not('.panel-content-overlay').each(function(index) {
 147                 panels.push({
 148                     name: $('.panel-toolbar option:selected', this).attr('name'),
 149                     ratio: $(this).width() / panelRoot.width()
 150                 })
 151                         });
 152                         self.options.panels = panels;
 153             $.log($.toJSON(self.options));
 154             $.cookie('options', $.toJSON(self.options), { expires: 7, path: '/'});
 155             });
 156         });
 157
 158         $('#toolbar-button-save').click( function (event, data) { self.saveToBranch(); } );
 159
 160     panelRoot.bind('stopResize', function() {
 161         var panels = [];
 162         $('.panel-wrap', panelRoot).not('.panel-content-overlay').each(function() {
 163             panels.push({
 164                 name: $('.panel-toolbar option:selected', this).attr('name'),
 165                 ratio: $(this).width() / panelRoot.width()
 166             })
 167         });
 168         self.options.panels = panels;
 169         $.log($.toJSON(self.options));
 170         $.cookie('options', $.toJSON(self.options), { expires: 7, path: '/'});
 171     });
 172 }
 173
 174 Editor.prototype.loadConfig = function() {
 175     // Load options from cookie
 176     try {
 177         var cookie = $.cookie('options');
 178         this.options = $.secureEvalJSON(cookie);
 179     } catch (e) {
 180         this.options = {
 181             panels: [
 182                 {name: 'htmleditor', ratio: 0.5},
 183                 {name: 'gallery', ratio: 0.5}
 184             ]
 185         }
 186     }
 187     $.log(this.options);
 188 }
 189
 190 Editor.prototype.saveToBranch = function() {
 191         var changed_panel = $('.panel-wrap.changed');
 192         var self = this;
 193         $.log('Saving to local branch - panel:', changed_panel);
 194
 195         if( changed_panel.length == 0) {
 196                 $.log('Nothing to save.');
 197                 return; /* no changes */
 198         }
 199
 200         if( changed_panel.length > 1) {
 201                 alert('Błąd: więcej niż jeden panel został zmodyfikowany. Nie można zapisać.');
 202                 return;
 203         }
 204
 205         saveInfo = changed_panel.data('ctrl').saveInfo();
 206
 207         $.ajax({
 208                 url: saveInfo.url,
 209                 dataType: 'json',
 210                 success: function(data, textStatus) {
 211                         if (data.result != 'ok')
 212                                 $.log('save errors: ', data.errors)
 213                         else
 214                                 self.refreshPanels(changed_panel);
 215                 },
 216                 error: function(rq, tstat, err) {
 217                         $.log('save error', rq, tstat, err);
 218                 },
 219                 type: 'POST',
 220                 data: saveInfo.postData
 221         });
 222 };
 223
 224 Editor.prototype.refreshPanels = function(goodPanel) {
 225         var self = this;
 226         var panels = $('#' + self.rootDiv.attr('id') +' > *.panel-wrap', self.rootDiv.parent());
 227
 228         panels.each(function() {
 229                 var panel = $(this).data('ctrl');
 230                 $.log(this, panel);
 231                 if ( panel.changed() )
 232                         panel.unmarkChanged();
 233                 else
 234                         panel.refresh();
 235         });
 236 };
 237
 238 $(function() {
 239         editor = new Editor();
 240
 241         // do the layout
 242         editor.loadConfig();
 243         editor.setupUI();
 244 });