platforma/static/js/views/html.js

   1 /*global View render_template panels */
   2 var HTMLView = View.extend({
   3     _className: 'HTMLView',
   4     element: null,
   5     model: null,
   6     template: 'html-view-template',
   7
   8     init: function(element, model, parent, template) {
   9         this._super(element, model, template);
  10         this.parent = parent;
  11
  12         this.model
  13         .addObserver(this, 'data', this.modelDataChanged.bind(this))
  14         .addObserver(this, 'state', this.modelStateChanged.bind(this));
  15
  16         this.$menuTemplate = $(render_template('html-view-frag-menu-template', this));
  17         this.modelStateChanged('state', this.model.get('state'));
  18         this.modelDataChanged('data', this.model.get('data'));
  19
  20         this.model.load();
  21
  22         this.currentOpen = null;
  23         this.currentFocused = null;
  24         this.themeBoxes = [];
  25     },
  26
  27     modelDataChanged: function(property, value) {
  28         $('.htmlview', this.element).html(value);
  29         this.updatePrintLink();
  30         var self = this;
  31
  32         /* upgrade editable elements */
  33         $("*[x-editable]", this.$docbase).each(function() {
  34             $(this).append( self.$menuTemplate.clone() );
  35         });
  36
  37         /* mark themes */
  38         /* $(".theme-ref", this.$docbase).each(function() {
  39             var id = $(this).attr('x-theme-class');
  40
  41             var end = $("span.theme-end[x-theme-class = " + id+"]");
  42             var begin = $("span.theme-begin[x-theme-class = " + id+"]");
  43
  44             var h = $(this).outerHeight();
  45
  46             h = Math.max(h, end.offset().top - begin.offset().top);
  47             $(this).css('height', h);
  48         }); */
  49     },
  50
  51     updatePrintLink: function() {
  52         var base = this.$printLink.attr('ui:baseref');
  53         this.$printLink.attr('href', base + "?user="+this.model.document.get('user')+"&revision=" + this.model.get('revision'));
  54     },
  55
  56     modelStateChanged: function(property, value)
  57     {
  58         var self = $(this);
  59
  60         if (value == 'synced' || value == 'dirty') {
  61             this.unfreeze();
  62         } else if (value == 'unsynced') {
  63             if(this.currentOpen) this.closeWithoutSave(this.currentOpen);
  64             this.freeze('Niezsynchronizowany...');
  65         } else if (value == 'loading') {
  66             this.freeze('Ładowanie...');
  67         } else if (value == 'saving') {
  68             this.freeze('Zapisywanie...');
  69         } else if (value == 'error') {
  70             this.freeze(this.model.get('error'));
  71             $('.xml-editor-ref', this.overlay).click(
  72             function(event) {
  73                 console.log("Sending scroll rq.", this);
  74                 try {
  75                     var href = $(this).attr('href').split('-');
  76                     var line = parseInt(href[1]);
  77                     var column = parseInt(href[2]);
  78
  79                     $(document).trigger('xml-scroll-request', {line:line, column:column});
  80                 } catch(e) {
  81                     console.log(e);
  82                 }
  83
  84                 return false;
  85             });
  86         }
  87     },
  88
  89     render: function() {
  90         if(this.$docbase)
  91             this.$docbase.unbind('click');
  92
  93         if(this.$printLink)
  94             this.$printLink.unbind();
  95
  96         if(this.$addThemeButton)
  97             this.$addThemeButton.unbind();
  98
  99         this._super();
 100
 101         this.$printLink = $('.htmlview-toolbar .html-print-link', this.element);
 102         this.$docbase = $('.htmlview', this.element);
 103         this.$addThemeButton = $('.htmlview-toolbar .html-add-motive', this.element);
 104
 105         this.updatePrintLink();
 106         this.$docbase.bind('click', this.itemClicked.bind(this));
 107         this.$addThemeButton.click( this.addTheme.bind(this) );
 108     },
 109
 110     renderPart: function($e, html) {
 111         // exceptions aren't good, but I don't have a better idea right now
 112         if($e.attr('x-annotation-box')) {
 113             // replace the whole annotation
 114             var $p = $e.parent();
 115             $p.html(html);
 116             var $box = $('*[x-annotation-box]', $p);
 117             $box.append( this.$menuTemplate.clone() );
 118
 119             if(this.currentFocused && $p[0] == this.currentFocused[0])
 120             {
 121                 this.currentFocused = $p;
 122                 $box.css({'display': 'block'});
 123             }
 124
 125             return;
 126         }
 127
 128         $e.html(html);
 129         $e.append( this.$menuTemplate.clone() );
 130     },
 131
 132     reload: function() {
 133         this.model.load(true);
 134     },
 135
 136     dispose: function() {
 137         this.model.removeObserver(this);
 138         this._super();
 139     },
 140
 141     itemClicked: function(event)
 142     {
 143         var self = this;
 144
 145         console.log('click:', event, event.ctrlKey, event.target);
 146         var $e = $(event.target);
 147
 148         if($e.hasClass('annotation'))
 149         {
 150             if(this.currentOpen) return false;
 151
 152             var $p = $e.parent();
 153             if(this.currentFocused)
 154             {
 155                 console.log(this.currentFocused, $p);
 156                 if($p[0] == this.currentFocused[0]) {
 157                     console.log('unfocus of current');
 158                     this.unfocusAnnotation();
 159                     return false;
 160                 }
 161
 162                 console.log('switch unfocus');
 163                 this.unfocusAnnotation();
 164             }
 165
 166             this.focusAnnotation($p);
 167             return false;
 168         }
 169
 170         /*
 171          * Clicking outside of focused area doesn't unfocus by default
 172          *  - this greatly simplifies the whole click check
 173          */
 174
 175         if( $e.hasClass('theme-ref') )
 176         {
 177             console.log($e);
 178             this.selectTheme($e.attr('x-theme-class'));
 179         }
 180
 181         /* other buttons */
 182         if($e.hasClass('edit-button'))
 183             this.openForEdit( this.editableFor($e) );
 184
 185         if($e.hasClass('accept-button'))
 186             this.closeWithSave( this.editableFor($e) );
 187
 188         if($e.hasClass('reject-button'))
 189             this.closeWithoutSave( this.editableFor($e) );
 190     },
 191
 192     unfocusAnnotation: function()
 193     {
 194         if(!this.currentFocused)
 195         {
 196             console.log('Redundant unfocus');
 197             return false;
 198         }
 199
 200         if(this.currentOpen
 201           && this.currentOpen.is("*[x-annotation-box]")
 202           && this.currentOpen.parent()[0] == this.currentFocused[0])
 203         {
 204             console.log("Can't unfocus open box");
 205             return false;
 206         }
 207
 208         var $box = $("*[x-annotation-box]", this.currentFocused);
 209         $box.css({'display': 'none'});
 210         // this.currentFocused.removeAttr('x-focused');
 211         // this.currentFocused.hide();
 212         this.currentFocused = null;
 213     },
 214
 215     focusAnnotation: function($e) {
 216         this.currentFocused = $e;
 217         var $box = $("*[x-annotation-box]", $e);
 218         $box.css({'display': 'block'});
 219
 220         // $e.attr('x-focused', 'focused');
 221     },
 222
 223     closeWithSave: function($e) {
 224         var $edit = $e.data('edit-overlay');
 225         var newText = $('textarea', $edit).val();
 226
 227         this.model.putXMLPart($e, newText, function($e, html) {
 228             this.renderPart($e, html);
 229             $edit.remove();
 230             $e.removeAttr('x-open');
 231         }.bind(this) );
 232         this.currentOpen = null;
 233     },
 234
 235     closeWithoutSave: function($e) {
 236         var $edit = $e.data('edit-overlay');
 237         $edit.remove();
 238         $e.removeAttr('x-open');
 239         this.currentOpen = null;
 240     },
 241
 242     editableFor: function($button)
 243     {
 244         var $e = $button;
 245         var n = 0;
 246
 247         while( ($e[0] != this.element[0]) && !($e.attr('x-editable')) && n < 50)
 248         {
 249             // console.log($e, $e.parent(), this.element);
 250             $e = $e.parent();
 251             n += 1;
 252         }
 253
 254         if(!$e.attr('x-editable'))
 255             throw Exception("Click outside of editable")
 256
 257         console.log("Trigger", $button, " yields editable: ", $e);
 258         return $e;
 259     },
 260
 261     openForEdit: function($origin)
 262     {
 263         if(this.currentOpen && this.currentOpen != $origin) {
 264             this.closeWithSave(this.currentOpen);
 265         }
 266
 267         var x = $origin[0].offsetLeft;
 268         var y = $origin[0].offsetTop;
 269         var w = $origin.outerWidth();
 270         var h = $origin.innerHeight();
 271
 272         console.log("Editable:", $origin, " offsetParent:", $origin[0].offsetParent);
 273         console.log("Dimensions: ", x, y, w , h);
 274
 275         // start edition on this node
 276         var $overlay = $('<div class="html-editarea"><textarea></textarea></div>');
 277
 278         $overlay.css({position: 'absolute', height: h, left: x, top: y, width: '95%'});
 279         $($origin[0].offsetParent).append($overlay);
 280         $origin.data('edit-overlay', $overlay);
 281
 282         this.model.getXMLPart($origin, function(path, data) {
 283             $('textarea', $overlay).val(data);
 284         });
 285
 286         if($origin.is("*[x-annotation-box]"))
 287         {
 288             var $b =  $origin.parent();
 289             if(this.currentFocused) {
 290                 // if some other is focused
 291                 if($b[0] != this.currentFocused[0]) {
 292                     this.unfocusAnnotation();
 293                     this.focusAnnotation($b);
 294                 }
 295                 // already focues
 296             }
 297             else { // nothing was focused
 298                 this.focusAnnotation($b);
 299             }
 300         }
 301         else { // this item is not focusable
 302             if(this.currentFocused) this.unfocusAnnotation();
 303         }
 304
 305         this.currentOpen = $origin;
 306         $origin.attr('x-open', 'open');
 307
 308         return false;
 309     },
 310
 311     addTheme: function()
 312     {
 313         var selection = document.getSelection();
 314         var n = selection.rangeCount;
 315
 316         if(n == 0)
 317             window.alert("Nie zaznaczono żadnego obszaru");
 318
 319         // for now allow only 1 range
 320         if(n > 1)
 321             window.alert("Zaznacz jeden obszar");
 322
 323         // from this point, we will assume that the ranges are disjoint
 324         for(var i=0; i < n; i++) {
 325             var range = selection.getRangeAt(i);
 326             console.log(i, range.startContainer, range.endContainer);
 327             var date = Date.now();
 328             var random = Math.floor(4000000000*Math.random());
 329             var id = (''+date) + '-' + (''+random);
 330
 331             var ipoint = document.createRange();
 332
 333             // Firefox alters the later node when inserting, so
 334             // insert from end
 335             ipoint.setStart(range.endContainer, range.endOffset);
 336             elem = $('<span class="theme-end" x-theme-class="'+id+'" id="e'+id+'"></span>')[0];
 337             ipoint.insertNode(elem);
 338
 339             // insert theme-ref
 340             ipoint.setStart(range.startContainer, range.startOffset);
 341             var elem = $('<span class="theme-ref" x-theme-class="'+id+'" id="m'+id+'">Nowy motyw</span>')[0];
 342             ipoint.insertNode(elem);
 343             ipoint.setStartBefore(elem);
 344
 345             // insert theme-begin
 346             elem = $('<span class="theme-begin" x-theme-class="'+id+'" id="b'+id+'"></span>')[0];
 347             ipoint.insertNode(elem);
 348         }
 349
 350         selection.removeAllRanges();
 351     },
 352
 353     selectTheme: function(themeId)
 354     {
 355         var selection = document.getSelection();
 356
 357         // remove current selection
 358         selection.removeAllRanges();
 359
 360         var range = document.createRange();
 361         var s = $('#m'+themeId)[0];
 362         var e = $('#e'+themeId)[0];
 363         console.log('Selecting range:', themeId, range, s, e);
 364
 365         if(s && e) {
 366             range.setStartAfter(s);
 367             range.setEndBefore(e);
 368             selection.addRange(range);
 369         }
 370     }
 371 });
 372
 373 // Register view
 374 panels['html'] = HTMLView;