platforma/static/js/wiki/wikiapi.js

   1 (function($) {
   2         $.wikiapi = {};
   3         var noop = function() {
   4         };
   5         var noops = {
   6                 success: noop,
   7                 failure: noop
   8         };
   9         /*
  10          * Return absolute reverse path of given named view.
  11          * (at least he have it hard-coded in one place)
  12          *
  13          * TODO: think of a way, not to hard-code it here ;)
  14          *
  15          */
  16         function reverse() {
  17                 var vname = arguments[0];
  18                 var base_path = "/documents";
  19
  20                 if (vname == "ajax_document_text") {
  21                         var path = "/" + arguments[1] + "/text";
  22
  23                 if (arguments[2] !== undefined)
  24                                 path += "/" + arguments[2];
  25
  26                         return base_path + path;
  27                 }
  28
  29                 if (vname == "ajax_document_history") {
  30
  31                         return base_path + "/" + arguments[1] + "/history";
  32                 }
  33
  34                 if (vname == "ajax_document_gallery") {
  35
  36                         return base_path + "/gallery/" + arguments[1];
  37                 }
  38
  39                 if (vname == "ajax_document_diff")
  40                         return base_path + "/" + arguments[1] + "/diff";
  41
  42                 if (vname == "ajax_document_addtag")
  43                         return base_path + "/" + arguments[1] + "/tags";
  44
  45                 if (vname == "ajax_publish")
  46                         return base_path + "/" + arguments[1] + "/publish";
  47
  48                 console.log("Couldn't reverse match:", vname);
  49                 return "/404.html";
  50         };
  51
  52         /*
  53          * Document Abstraction
  54          */
  55         function WikiDocument(element_id) {
  56                 var meta = $('#' + element_id);
  57                 this.id = meta.attr('data-document-name');
  58                 this.revision = $("*[data-key='revision']", meta).text();
  59                 this.galleryLink = $("*[data-key='gallery']", meta).text();
  60                 this.galleryImages = [];
  61                 this.text = null;
  62                 this.has_local_changes = false;
  63                 this._lock = -1;
  64                 this._context_lock = -1;
  65                 this._lock_count = 0;
  66         };
  67
  68         WikiDocument.prototype.triggerDocumentChanged = function() {
  69                 $(document).trigger('wlapi_document_changed', this);
  70         };
  71         /*
  72          * Fetch text of this document.
  73          */
  74         WikiDocument.prototype.fetch = function(params) {
  75                 params = $.extend({}, noops, params);
  76                 var self = this;
  77                 $.ajax({
  78                         method: "GET",
  79                         url: reverse("ajax_document_text", self.id),
  80                         dataType: 'json',
  81                         success: function(data) {
  82                                 var changed = false;
  83
  84 if (self.text === null || self.revision !== data.revision) {
  85                                         self.text = data.text;
  86                                         self.revision = data.revision;
  87                                         self.gallery = data.gallery;
  88                                         changed = true;
  89                                         self.triggerDocumentChanged();
  90                                 };
  91
  92                                 self.has_local_changes = false;
  93                                 params['success'](self, changed);
  94                         },
  95                         error: function() {
  96                                 params['failure'](self, "Nie udało się wczytać treści dokumentu.");
  97                         }
  98                 });
  99         };
 100         /*
 101          * Fetch history of this document.
 102          *
 103          * from - First revision to fetch (default = 0)
 104          * upto - Last revision to fetch (default = tip)
 105          *
 106          */
 107         WikiDocument.prototype.fetchHistory = function(params) {
 108                 /* this doesn't modify anything, so no locks */
 109                 params = $.extend({}, noops, params);
 110                 var self = this;
 111                 $.ajax({
 112                         method: "GET",
 113                         url: reverse("ajax_document_history", self.id),
 114                         dataType: 'json',
 115                         data: {
 116                                 "from": params['from'],
 117                                 "upto": params['upto']
 118                         },
 119                         success: function(data) {
 120                                 params['success'](self, data);
 121                         },
 122                         error: function() {
 123                                 params['failure'](self, "Nie udało się wczytać historii dokumentu.");
 124                         }
 125                 });
 126         };
 127         WikiDocument.prototype.fetchDiff = function(params) {
 128                 /* this doesn't modify anything, so no locks */
 129                 var self = this;
 130                 params = $.extend({
 131                         'from': self.revision,
 132                         'to': self.revision
 133                 }, noops, params);
 134                 $.ajax({
 135                         method: "GET",
 136                         url: reverse("ajax_document_diff", self.id),
 137                         dataType: 'html',
 138                         data: {
 139                                 "from": params['from'],
 140                                 "to": params['to']
 141                         },
 142                         success: function(data) {
 143                                 params['success'](self, data);
 144                         },
 145                         error: function() {
 146                                 params['failure'](self, "Nie udało się wczytać porównania wersji.");
 147                         }
 148                 });
 149         };
 150         /*
 151          * Fetch gallery
 152          */
 153         WikiDocument.prototype.refreshGallery = function(params) {
 154                 params = $.extend({}, noops, params);
 155                 var self = this;
 156                 $.ajax({
 157                         method: "GET",
 158                         url: reverse("ajax_document_gallery", self.galleryLink),
 159                         dataType: 'json',
 160                         // data: {},
 161                         success: function(data) {
 162                                 self.galleryImages = data;
 163                                 params['success'](self, data);
 164                         },
 165                         error: function() {
 166                                 self.galleryImages = [];
 167                                 params['failure'](self, "<p>Nie udało się wczytać gallerii pod nazwą: '" + self.galleryLink + "'.</p>");
 168                         }
 169                 });
 170         };
 171         /*
 172          * Set document's text
 173          */
 174         WikiDocument.prototype.setText = function(text) {
 175                 this.text = text;
 176                 this.has_local_changes = true;
 177         };
 178         /*
 179          * Set document's gallery link
 180          */
 181         WikiDocument.prototype.setGalleryLink = function(gallery) {
 182                 this.galleryLink = gallery;
 183                 this.has_local_changes = true;
 184         };
 185         /*
 186          * Save text back to the server
 187          */
 188         WikiDocument.prototype.save = function(params) {
 189                 params = $.extend({}, noops, params);
 190                 var self = this;
 191
 192                 if (!self.has_local_changes) {
 193                         console.log("Abort: no changes.");
 194                         return params['success'](self, false, "Nie ma zmian do zapisania.");
 195                 };
 196
 197                 // Serialize form to dictionary
 198                 var data = {};
 199                 $.each(params['form'].serializeArray(), function() {
 200                         data[this.name] = this.value;
 201                 });
 202                 var metaComment = '<!--';
 203                 metaComment += '\n\tgallery:' + self.galleryLink;
 204                 metaComment += '\n-->\n'
 205
 206                 data['textsave-text'] = metaComment + self.text;
 207
 208                 $.ajax({
 209                         url: reverse("ajax_document_text", self.id),
 210                         type: "POST",
 211                         dataType: "json",
 212                         data: data,
 213                         success: function(data) {
 214                                 var changed = false;
 215
 216                                 if (data.text) {
 217                                         self.text = data.text;
 218                                         self.revision = data.revision;
 219                                         self.gallery = data.gallery;
 220                                         changed = true;
 221                                         self.triggerDocumentChanged();
 222                                 };
 223
 224                                 params['success'](self, changed, ((changed && "Udało się zapisać :)") || "Twoja wersja i serwera jest identyczna"));
 225                         },
 226                         error: function(xhr) {
 227                                 try {
 228                                         params['failure'](self, $.parseJSON(xhr.responseText));
 229                                 }
 230                                 catch (e) {
 231                                         params['failure'](self, {
 232                                                 "__message": "<p>Nie udało się zapisać - błąd serwera.</p>"
 233                                         });
 234                                 };
 235
 236                         }
 237                 });
 238         }; /* end of save() */
 239         WikiDocument.prototype.publish = function(params) {
 240                 params = $.extend({}, noops, params);
 241                 var self = this;
 242                 $.ajax({
 243                         url: reverse("ajax_publish", self.id),
 244                         type: "POST",
 245                         dataType: "json",
 246                         success: function(data) {
 247                                 params.success(self, data);
 248                         },
 249                         error: function(xhr) {
 250                                 if (xhr.status == 403 || xhr.status == 401) {
 251                                         params.failure(self, "Nie masz uprawnień lub nie jesteś zalogowany.");
 252                                 }
 253                                 else {
 254                                         try {
 255                                                 params.failure(self, xhr.responseText);
 256                                         }
 257                                         catch (e) {
 258                                                 params.failure(self, "Nie udało się - błąd serwera.");
 259                                         };
 260                                 };
 261
 262                         }
 263                 });
 264         };
 265         WikiDocument.prototype.setTag = function(params) {
 266                 params = $.extend({}, noops, params);
 267                 var self = this;
 268                 var data = {
 269                         "id": self.id,
 270                 };
 271                 /* unpack form */
 272                 $.each(params.form.serializeArray(), function() {
 273                         data[this.name] = this.value;
 274                 });
 275                 $.ajax({
 276                         url: reverse("ajax_document_addtag", self.id),
 277                         type: "POST",
 278                         dataType: "json",
 279                         data: data,
 280                         success: function(data) {
 281                                 params.success(self, data.message);
 282                         },
 283                         error: function(xhr) {
 284                                 if (xhr.status == 403 || xhr.status == 401) {
 285                                         params.failure(self, {
 286                                                 "__all__": ["Nie masz uprawnień lub nie jesteś zalogowany."]
 287                                         });
 288                                 }
 289                                 else {
 290                                         try {
 291                                                 params.failure(self, $.parseJSON(xhr.responseText));
 292                                         }
 293                                         catch (e) {
 294                                                 params.failure(self, {
 295                                                         "__all__": ["Nie udało się - błąd serwera."]
 296                                                 });
 297                                         };
 298
 299                                 };
 300
 301                         }
 302                 });
 303         };
 304         $.wikiapi.WikiDocument = WikiDocument;
 305 })(jQuery);