public/js/syj.js

   1 /*  This file is part of Syj, Copyright (c) 2010 Arnaud Renevier,
   2     and is published under the AGPL license. */
   3
   4 // avoid openlayers alerts
   5 OpenLayers.Console.userError = function(error) {
   6     SYJView.messenger.setMessage(error, "error");
   7 };
   8
   9 var SyjSaveUI = {
  10     status: "unknown",
  11
  12     init: function() {
  13         $("geom_title").observe('contentchange', this.enableSubmit.bindAsEventListener(this));
  14         return this;
  15     },
  16
  17     hide: function() {
  18         $("geom_submit").blur();
  19         $("geom_title").blur();
  20         $("geomform").hide();
  21         return this;
  22     },
  23
  24     show: function() {
  25         $("geomform").show();
  26         return this;
  27     },
  28
  29     enable: function() {
  30         if (this.status === "enabled") {
  31             return this;
  32         }
  33         this.enableSubmit();
  34         $("geom_title").disabled = false;
  35         $("geom_title").activate();
  36         $("geomform").removeClassName("disabled");
  37         this.status = "enabled";
  38         return this;
  39     },
  40
  41     disable: function() {
  42         if (this.status === "disabled") {
  43             return this;
  44         }
  45         this.disableSubmit();
  46         $("geom_title").blur();
  47         $("geom_title").disabled = true;
  48         $("geomform").addClassName("disabled");
  49         this.status = "disabled";
  50         return this;
  51     },
  52
  53     enableSubmit: function() {
  54         $("geom_submit").disabled = false;
  55         this.status = "partial";
  56         return this;
  57     },
  58
  59     disableSubmit: function() {
  60         $("geom_submit").blur();
  61         $("geom_submit").disabled = true;
  62         this.status = "partial";
  63         return this;
  64     }
  65 };
  66
  67 var SyjEditUI = {
  68     hide: function() {
  69         $("data_controls_btns").blur();
  70         $("data_controls_btns").hide();
  71         return this;
  72     },
  73
  74     show: function() {
  75         $("data_controls_btns").show();
  76         return this;
  77     }
  78 };
  79
  80 OpenLayers.Handler.SyjModifiablePath = OpenLayers.Class(OpenLayers.Handler.ModifiablePath, {
  81     mouseup: function(evt) {
  82         // do not add a point when navigating
  83         var mapControls = this.control.map.controls, idx, ctrl;
  84
  85         for (idx = mapControls.length; idx-->0; ) {
  86             ctrl = mapControls[idx];
  87             if (this.isCtrlNavigationActive(ctrl, evt)) {
  88                 return true;
  89             }
  90         }
  91         return OpenLayers.Handler.ModifiablePath.prototype.mouseup.apply(this, arguments);
  92     },
  93
  94     addPoints: function(pixel) {
  95         // redraw before last point. As we have a special style for last point, we
  96         // need to redraw before last point after adding a new point (otherwise, it
  97         // keeps special style forever)
  98         var oldpoint = this.point;
  99         OpenLayers.Handler.ModifiablePath.prototype.addPoints.apply(this, arguments);
 100         this.layer.drawFeature(oldpoint);
 101     },
 102
 103     isCtrlNavigationActive: function(ctrl, evt) {
 104         var tolerance = 4, xDiff, yDiff;
 105
 106         if (!(ctrl instanceof OpenLayers.Control.Navigation)) {
 107             return false;
 108         }
 109
 110         if (ctrl.zoomBox &&
 111             ctrl.zoomBox.active &&
 112             ctrl.zoomBox.handler &&
 113             ctrl.zoomBox.handler.active &&
 114             ctrl.zoomBox.handler.dragHandler &&
 115             ctrl.zoomBox.handler.dragHandler.start) {
 116             return true;
 117         }
 118
 119         if (!ctrl.dragPan ||
 120             !ctrl.dragPan.active ||
 121             !ctrl.dragPan.handler ||
 122             !ctrl.dragPan.handler.started ||
 123             !ctrl.dragPan.handler.start) {
 124             return false;
 125         }
 126
 127         // if mouse moved 4 or less pixels, consider it has not moved.
 128         tolerance = 4;
 129
 130         xDiff = evt.xy.x - ctrl.dragPan.handler.start.x;
 131         yDiff = evt.xy.y - ctrl.dragPan.handler.start.y;
 132
 133         if (Math.sqrt(Math.pow(xDiff,2) + Math.pow(yDiff,2)) <= tolerance) {
 134             return false;
 135         }
 136         return true;
 137     },
 138
 139     finalize: function(cancel) {
 140         // do nothing. We don't want to finalize path
 141     }
 142 });
 143
 144 var styleMap = {
 145     edit: new OpenLayers.StyleMap({
 146         "default": new OpenLayers.Style({
 147             pointRadius: "${radius}", // sized according to type attribute
 148             fillColor: "#ffcc66",
 149             strokeColor: "#ff9933",
 150             strokeWidth: 2,
 151             strokeOpacity: "${opacity}",
 152             fillOpacity: "${opacity}"
 153         },
 154         {
 155             context: {
 156                 radius: function(feature) {
 157                     var features;
 158
 159                     if (!(feature.geometry instanceof OpenLayers.Geometry.Point)) {
 160                         return 0;
 161                     }
 162                     if (feature.type === "middle") {
 163                         return 4;
 164                     }
 165                     features = feature.layer.features;
 166                     if (OpenLayers.Util.indexOf(features, feature) === 0) {
 167                         return 5;
 168                     } else if (OpenLayers.Util.indexOf(features, feature) === features.length - 1) {
 169                         return 5;
 170                     }
 171                     return 3;
 172                 },
 173                 opacity: function (feature) {
 174                     if (feature.type === "middle") {
 175                         return 0.5;
 176                     } else {
 177                         return 1;
 178                     }
 179                 }
 180             }
 181         }),
 182
 183         "select": new OpenLayers.Style({
 184             externalGraphic: "icons/delete.png",
 185             graphicHeight: 16
 186         }),
 187
 188         "select_for_canvas": new OpenLayers.Style({
 189             strokeColor: "blue",
 190             fillColor: "lightblue"
 191         })
 192
 193     }),
 194
 195     view: new OpenLayers.StyleMap({
 196         "default": new OpenLayers.Style({
 197             strokeColor: "blue",
 198             strokeWidth: 5,
 199             strokeOpacity: 0.7
 200         })
 201     })
 202 };
 203
 204 var WGS84 = new OpenLayers.Projection("EPSG:4326");
 205 var Mercator = new OpenLayers.Projection("EPSG:900913");
 206
 207 var SYJView = {
 208     viewLayer: null,
 209     editControl: null,
 210     map: null,
 211     wkt: new OpenLayers.Format.WKT({ internalProjection: Mercator, externalProjection: WGS84 }),
 212     needsFormResubmit: false,
 213     unsavedRoute: null,
 214     mode: 'view',
 215
 216     init: function() {
 217         var externalGraphic, baseURL, baseLayer, layerOptions, extent, hidemessenger;
 218
 219         // is svg context, opera does not resolve links with base element is svg context
 220         externalGraphic = styleMap.edit.styles.select.defaultStyle.externalGraphic;
 221         baseURL = document.getElementsByTagName("base")[0].href;
 222         styleMap.edit.styles.select.defaultStyle.externalGraphic = baseURL + externalGraphic;
 223
 224         this.map = new OpenLayers.Map('map', {
 225             controls: [
 226                 new OpenLayers.Control.Navigation(),
 227                 new OpenLayers.Control.PanZoom(),
 228                 new OpenLayers.Control.Attribution()
 229             ],
 230             theme: null
 231         });
 232
 233         baseLayer = new OpenLayers.Layer.OSM("OSM", null, { wrapDateLine: true , attribution: SyjStrings.osmAttribution });
 234
 235         layerOptions = {format:     OpenLayers.Format.WKT,
 236                         projection: WGS84,
 237                         styleMap:   styleMap.view};
 238         if (gLoggedInfo.creatorname) {
 239             layerOptions.attribution = SyjStrings.routeBy + ' ' + '<strong>' + gLoggedInfo.creatorname + '</strong>';
 240         }
 241
 242         this.viewLayer = new OpenLayers.Layer.Vector("View Layer", layerOptions);
 243         this.map.addLayers([baseLayer, this.viewLayer]);
 244
 245         if ($("edit-btn")) {
 246             $("edit-btn").observe('click', (function() {
 247                 $("geom_submit").value = SyjStrings.editAction;
 248                 this.messenger.hide();
 249                 this.editMode();
 250                 this.mode = 'edit';
 251             }).bind(this));
 252         }
 253
 254         if ($("create-btn")) {
 255             $("create-btn").observe('click', (function() {
 256                 $("geom_submit").value = SyjStrings.createAction;
 257                 this.messenger.hide();
 258                 this.editMode();
 259                 this.mode = 'create';
 260             }).bind(this));
 261         }
 262
 263         if ($("clone-btn")) {
 264             $("clone-btn").observe('click', (function() {
 265                 $("geom_submit").value = SyjStrings.cloneAction;
 266                 $("geom_title").value = "";
 267                 this.messenger.hide();
 268                 this.editMode();
 269                 this.mode = 'create';
 270                 SyjSaveUI.enableSubmit();
 271             }).bind(this));
 272         }
 273
 274         $("geomform").ajaxize({
 275                 presubmit: this.prepareForm.bind(this),
 276                 onSuccess: this.saveSuccess.bind(this),
 277                 onFailure: this.saveFailure.bind(this)
 278                 });
 279         SyjSaveUI.init().hide();
 280
 281         this.messenger = $('message');
 282         hidemessenger = this.messenger.empty();
 283         new CloseBtn(this.messenger, {
 284             style: {
 285                 margin: "-1em"
 286             }
 287         });
 288         if (hidemessenger) {
 289             this.messenger.hide();
 290         }
 291
 292         if ($("geom_data").value) {
 293             this.viewLayer.addFeatures([this.wkt.read($("geom_data").value)]);
 294             extent = this.viewLayer.getDataExtent();
 295             // XXX: ie has not guessed height of map main div yet during map
 296             // initialisation. Now, it will read it correctly.
 297             this.map.updateSize();
 298         } else {
 299             extent = new OpenLayers.Bounds(gMaxExtent.minlon, gMaxExtent.minlat, gMaxExtent.maxlon, gMaxExtent.maxlat)
 300                                          .transform(WGS84, Mercator);
 301         }
 302         this.map.zoomToExtent(extent);
 303         document.observe('simplebox:shown', this.observer.bindAsEventListener(this));
 304     },
 305
 306     observer: function(evt) {
 307         if (evt.eventName === "simplebox:shown" && evt.memo.element !== $("termsofusearea")) {
 308             this.messenger.hide();
 309         }
 310     },
 311
 312     prepareForm: function(form) {
 313         if (!LoginMgr.logged && !$("geom_accept").checked) {
 314             this.messenger.setMessage(SyjStrings.acceptTermsofuseWarn, "warn");
 315             $("geom_accept_container").highlight('#F08080');
 316             $("geom_accept").activate();
 317             return false;
 318         }
 319
 320         var line, realPoints, idx;
 321
 322         line = new OpenLayers.Geometry.LineString();
 323         realPoints = this.editControl.handler.realPoints;
 324         for (idx = 0; idx < realPoints.length; idx++) {
 325             line.addComponent(realPoints[idx].geometry.clone());
 326         }
 327         this.viewLayer.addFeatures(new OpenLayers.Feature.Vector(line));
 328
 329         this.viewMode();
 330
 331         $("geom_data").value = this.wkt.write(new OpenLayers.Feature.Vector(line));
 332         if (this.mode === "edit" && typeof gLoggedInfo.pathid !== "undefined") {
 333             $("geomform").setAttribute("action", "path/" + gLoggedInfo.pathid.toString() + '/update');
 334         } else {
 335             $("geomform").setAttribute("action", "path");
 336         }
 337         this.needsFormResubmit = false;
 338         SyjSaveUI.disable.bind(SyjSaveUI).defer();
 339         this.messenger.hide();
 340         return true;
 341     },
 342
 343     viewMode: function() {
 344         var handler = this.editControl.handler;
 345         OpenLayers.Handler.ModifiablePath.prototype.finalize.apply(handler, arguments);
 346         // we need to recreate them on next createFeature; otherwise
 347         // they'll reference destroyed features
 348         delete(handler.handlers.drag);
 349         delete(handler.handlers.feature);
 350         this.editControl.deactivate();
 351     },
 352
 353     editMode: function() {
 354         var components, point0, point, pixels, pixel, idx;
 355
 356         this.initEditControl();
 357
 358         this.editControl.activate();
 359         if (this.viewLayer.features.length) {
 360             components = this.viewLayer.features[0].geometry.components;
 361             point0 = components[0];
 362             if (point0) {
 363                 pixel = this.map.getPixelFromLonLat(new OpenLayers.LonLat(point0.x, point0.y));
 364                 this.editControl.handler.createFeature(pixel);
 365                 this.editControl.handler.lastUp = pixel;
 366                 pixels = [];
 367                 for (idx = 1; idx < components.length; idx++) {
 368                     point = components[idx];
 369                     pixels.push(this.map.getPixelFromLonLat(new OpenLayers.LonLat(point.x, point.y)));
 370                 }
 371                 this.editControl.handler.addPoints(pixels);
 372             }
 373             this.unsavedRoute = {
 374                 features: this.viewLayer.features.invoke('clone'),
 375                 title: $("geom_title").value
 376             };
 377         }
 378
 379         this.viewLayer.destroyFeatures();
 380
 381         SyjEditUI.hide();
 382         if (this.editControl.handler.realPoints && this.editControl.handler.realPoints.length >= 2) {
 383             SyjSaveUI.show();
 384             SyjSaveUI.disableSubmit();
 385         } else {
 386             SyjSaveUI.show().disable();
 387         }
 388     },
 389
 390     initEditControl: function() {
 391         var styles;
 392
 393         if (this.editControl) {
 394             return;
 395         }
 396
 397         this.editControl = new OpenLayers.Control.DrawFeature(new OpenLayers.Layer.Vector(), OpenLayers.Handler.SyjModifiablePath, {
 398             callbacks: {
 399                 modify: function(f, line) {
 400                     if (this.handler.realPoints.length < 2) {
 401                         SyjSaveUI.show().disable();
 402                     } else {
 403                         SyjSaveUI.show().enable();
 404                     }
 405                 }
 406             },
 407
 408             handlerOptions: {
 409                 layerOptions: {
 410                     styleMap: styleMap.edit
 411                 }
 412             }
 413         });
 414         this.map.addControl(this.editControl);
 415         if (this.editControl.layer.renderer instanceof OpenLayers.Renderer.Canvas) {
 416             // using externalGraphic with canvas renderer is definitively too buggy
 417             styles = this.editControl.handler.layerOptions.styleMap.styles;
 418             styles.select = styles.select_for_canvas;
 419         }
 420         new CloseBtn($("geomform"), {
 421             style : {
 422                 marginRight: "-40px",
 423                 marginTop: "-20px"
 424             },
 425             callback: function(form) {
 426                 this.viewMode();
 427                 this.mode = 'view';
 428                 SyjSaveUI.hide();
 429                 SyjEditUI.show();
 430                 this.messenger.hide();
 431
 432                 if (typeof this.unsavedRoute.features !== "undefined") {
 433                     this.viewLayer.addFeatures(this.unsavedRoute.features);
 434                 }
 435                 if (typeof this.unsavedRoute.title !== "undefined") {
 436                     $("geom_title").value = this.unsavedRoute.title;
 437                 } else {
 438                     $("geom_title").value = "";
 439                 }
 440                 this.unsavedRoute = null;
 441             }.bind(this)
 442         });
 443     },
 444
 445     saveSuccess: function(transport) {
 446       if (transport.responseJSON && (typeof transport.responseJSON.redirect === "string")) {
 447           location = transport.responseJSON.redirect;
 448           return;
 449       }
 450
 451       this.messenger.setMessage(SyjStrings.saveSuccess, "success");
 452       SyjSaveUI.hide();
 453       SyjEditUI.show();
 454       this.unsavedRoute = null;
 455       document.title = $('geom_title').value;
 456     },
 457
 458     saveFailure: function(transport) {
 459         var httpCode = 0, message = "";
 460
 461         if (transport) {
 462             httpCode = transport.getStatus();
 463         }
 464         switch (httpCode) {
 465             case 0:
 466                 message = SyjStrings.notReachedError;
 467             break;
 468             case 400:
 469             case 404:
 470                 message = SyjStrings.requestError;
 471                 if (transport.responseJSON) {
 472                     switch (transport.responseJSON.message) {
 473                         case "uniquepath":
 474                             message = SyjStrings.uniquePathError;
 475                         break;
 476                         default:
 477                         break;
 478                     }
 479                 }
 480             break;
 481             case 403:
 482                 message = "";
 483                 SYJLogin.messenger.setMessage(SyjStrings.loginNeeded, "warn");
 484                 SYJLogin.modalbox.show();
 485                 this.needsFormResubmit = true;
 486             break;
 487             case 410:
 488                 message = SyjStrings.gonePathError;
 489             break;
 490             case 500:
 491                 message = SyjStrings.serverError;
 492                 this.needsFormResubmit = true;
 493             break;
 494             default:
 495                 message = SyjStrings.unknownError;
 496             break;
 497         }
 498
 499         this.editMode();
 500         // is some cases, we let the user resubmit, in some other cases, he
 501         // needs to modify the path before submitting again
 502         if (this.needsFormResubmit) {
 503             SyjSaveUI.enable();
 504         }
 505
 506         this.messenger.setMessage(message, "error");
 507     }
 508 };
 509
 510 var SYJModalClass = Class.create({
 511     type: "",
 512
 513     init: function() {
 514         this.area = $(this.type + '_area');
 515         this.messenger = $(this.type + "_message");
 516         this.modalbox = new SimpleBox(this.area, {
 517             closeMethods: ["onescapekey", "onouterclick", "onbutton"]
 518         });
 519
 520         $(this.type + "_control_anchor").observe("click", function(evt) {
 521             this.modalbox.show();
 522             evt.stop();
 523         }.bindAsEventListener(this));
 524
 525         document.observe('simplebox:shown', this.observer.bindAsEventListener(this));
 526         document.observe('simplebox:hidden', this.observer.bindAsEventListener(this));
 527
 528         $(this.type + "form").ajaxize({
 529             presubmit: this.presubmit.bind(this),
 530             onSuccess: this.success.bind(this),
 531             onFailure: this.failure.bind(this)
 532         });
 533     },
 534
 535     checkNotEmpty: function(input, message) {
 536         if ($(input).value.strip().empty()) {
 537             this.messenger.setMessage(message, "warn");
 538             $(input).highlight('#F08080').activate();
 539             return false;
 540         }
 541         return true;
 542     },
 543
 544     observer: function(evt) {
 545         var simplebox, input;
 546
 547         if (evt.eventName === "simplebox:shown" && evt.memo.element !== $("termsofusearea")) {
 548             simplebox = evt.memo;
 549             if (simplebox === this.modalbox) {
 550                 input = this.area.select('input[type="text"]')[0];
 551                 (function () {
 552                     input.activate();
 553                 }).defer();
 554             } else {
 555                 this.modalbox.hide();
 556             }
 557
 558         } else if (evt.eventName === "simplebox:hidden" && evt.memo.element !== $("termsofusearea")) {
 559             simplebox = evt.memo;
 560             if (simplebox === this.modalbox) {
 561                 this.reset();
 562             }
 563         }
 564     },
 565
 566     failure: function(transport) {
 567         var httpCode = 0, message = SyjStrings.unknownError, input; // default message error
 568
 569         if (transport) {
 570             httpCode = transport.getStatus();
 571         }
 572
 573         switch (httpCode) {
 574             case 0:
 575                 message = SyjStrings.notReachedError;
 576             break;
 577             case 400:
 578             case 404:
 579             case 410:
 580                 message = SyjStrings.requestError;
 581             break;
 582             case 500:
 583                 message = SyjStrings.serverError;
 584             break;
 585         }
 586
 587         this.messenger.setMessage(message, "error");
 588         input = this.area.select('input[type="text"]')[0];
 589         input.highlight('#F08080').activate();
 590     },
 591
 592     reset: function() {
 593         this.messenger.hide();
 594         this.area.select('.message').invoke('setMessageStatus', null);
 595     }
 596 });
 597
 598 var SYJUserClass = Class.create(SYJModalClass, {
 599     type: "user",
 600     toubox: null,
 601
 602     init: function($super) {
 603         $super();
 604         $("termsofusearea").hide();
 605
 606         $$("#user_termsofuse_anchor, #geom_termsofuse_anchor").invoke('observe', "click", function(evt) {
 607             if (!this.toubox) {
 608                 $("termsofusearea").show();
 609                 $("termsofuseiframe").setAttribute("src", evt.target.href);
 610                 this.toubox = new SimpleBox($("termsofusearea"), {
 611                     closeMethods: ["onescapekey", "onouterclick", "onbutton"]
 612                 });
 613             }
 614             this.toubox.show();
 615             evt.stop();
 616         }.bindAsEventListener(this));
 617
 618         $$("#login_area_create > a").invoke('observe', 'click',
 619             function(evt) {
 620                 this.modalbox.show();
 621                 evt.stop();
 622             }.bindAsEventListener(this));
 623
 624         $("user_pseudo-desc").hide();
 625         $("user_pseudo").observe('contentchange', function(evt) {
 626             var value = evt.target.value;
 627             PseudoChecker.reset();
 628             if (value && !(value.match(/^[a-zA-Z0-9_.]+$/))) {
 629                 $("user_pseudo-desc").show().setMessageStatus("warn");
 630             } else {
 631                 $("user_pseudo-desc").hide();
 632             }
 633         }).timedobserve(function() {
 634             PseudoChecker.check();
 635         });
 636
 637         $("user_password").observe('contentchange', function(evt) {
 638             if (evt.target.value.length < 6) {
 639                 $("user_password-desc").setMessageStatus("warn");
 640             } else {
 641                 $("user_password-desc").setMessageStatus("success");
 642             }
 643         }.bindAsEventListener(this));
 644
 645         $("account-info").hide();
 646         $("account-info-bullet").observe('click', function(evt) {
 647             var elt = $("account-info");
 648             if (elt.visible()) {
 649                 evt.target.src = "icons/bullet_arrow_right.png";
 650                 elt.hide();
 651             } else {
 652                 evt.target.src = "icons/bullet_arrow_down.png";
 653                 elt.show();
 654             }
 655             evt.stop();
 656         });
 657     },
 658
 659     presubmit: function() {
 660         this.messenger.hide();
 661         PseudoChecker.reset();
 662         if (!(this.checkNotEmpty("user_pseudo", SyjStrings.userEmptyWarn))) {
 663             return false;
 664         }
 665
 666         if (!($("user_pseudo").value.match(/^[a-zA-Z0-9_.]+$/))) {
 667             $("user_pseudo-desc").show().setMessageStatus("warn");
 668             $("user_pseudo").highlight('#F08080').activate();
 669             return false;
 670         }
 671
 672         if (PseudoChecker.exists[$("user_pseudo").value]) {
 673             PseudoChecker.availableMessage(false);
 674             $("user_pseudo").highlight('#F08080').activate();
 675             return false;
 676         }
 677
 678         if (!(this.checkNotEmpty("user_password", SyjStrings.passwordEmptyWarn))) {
 679             return false;
 680         }
 681
 682         if ($("user_password").value.length < 6) {
 683             $("user_password-desc").setMessageStatus("warn");
 684             $("user_password").highlight('#F08080').activate();
 685             return false;
 686         }
 687
 688         if ($("user_password").value !== $("user_password_confirm").value) {
 689             this.messenger.setMessage(SyjStrings.passwordNoMatchWarn, "warn");
 690             $("user_password").highlight('#F08080').activate();
 691             return false;
 692         }
 693
 694         if (!(this.checkNotEmpty("user_email", SyjStrings.emailEmptyWarn))) {
 695             return false;
 696         }
 697
 698         if (!$("user_accept").checked) {
 699             this.messenger.setMessage(SyjStrings.acceptTermsofuseWarn, "warn");
 700             $("user_accept_container").highlight('#F08080');
 701             $("user_accept").activate();
 702             return false;
 703         }
 704
 705         this.reset();
 706         return true;
 707     },
 708
 709     success: function(transport) {
 710         LoginMgr.login();
 711         SYJView.messenger.setMessage(SyjStrings.userSuccess, "success");
 712         this.modalbox.hide();
 713         if (SYJView.needsFormResubmit) {
 714             SYJView.messenger.addMessage(SyjStrings.canResubmit);
 715             $("geom_submit").activate();
 716         }
 717     },
 718
 719     failure: function($super, transport) {
 720         var httpCode = 0, focusInput = null, message = "";
 721
 722         if (transport) {
 723             httpCode = transport.getStatus();
 724         }
 725
 726         focusInput = null;
 727         message = "";
 728
 729         switch (httpCode) {
 730             case 400:
 731                 if (transport.responseJSON) {
 732                     switch (transport.responseJSON.message) {
 733                         case "invalidemail":
 734                             message = SyjStrings.emailInvalidWarn;
 735                             focusInput = $("user_email");
 736                         break;
 737                         case "uniquepseudo":
 738                             PseudoChecker.availableMessage(false);
 739                             focusInput = $("user_pseudo");
 740                         break;
 741                         case "uniqueemail":
 742                             message = SyjStrings.uniqueEmailError;
 743                             focusInput = $("user_email");
 744                         break;
 745                     }
 746                 }
 747             break;
 748         }
 749
 750         if (focusInput) {
 751             if (message) {
 752                 this.messenger.setMessage(message, "error");
 753             }
 754             focusInput.highlight('#F08080').activate();
 755             return;
 756         }
 757
 758         $super(transport);
 759     }
 760 });
 761 var SYJUser = new SYJUserClass();
 762
 763 var SYJLoginClass = Class.create(SYJModalClass, {
 764     type: "login",
 765
 766     init: function($super) {
 767         $super();
 768     },
 769
 770     presubmit: function() {
 771         this.messenger.hide();
 772         if (!(this.checkNotEmpty("login_user", SyjStrings.userEmptyWarn))) {
 773             return false;
 774         }
 775
 776         this.reset();
 777         return true;
 778     },
 779
 780     success: function(transport) {
 781         if (transport.responseText === "1") {
 782             LoginMgr.login(true);
 783         } else {
 784             LoginMgr.login();
 785         }
 786         SYJView.messenger.setMessage(SyjStrings.loginSuccess, "success");
 787         this.modalbox.hide();
 788         if (SYJView.needsFormResubmit) {
 789             SYJView.messenger.addMessage(SyjStrings.canResubmit);
 790             $("geom_submit").activate();
 791         }
 792     },
 793
 794     failure: function($super, transport) {
 795         var httpCode = 0, focusInput = null, message = "";
 796
 797         if (transport) {
 798             httpCode = transport.getStatus();
 799         }
 800
 801         focusInput = null;
 802         message = "";
 803
 804         switch (httpCode) {
 805             case 403:
 806                 message = SyjStrings.loginFailure;
 807                 focusInput = $("login_user");
 808             break;
 809         }
 810
 811         if (message) {
 812             this.messenger.setMessage(message, "error");
 813             if (focusInput) {
 814                 focusInput.highlight('#F08080').activate();
 815             }
 816             return;
 817         }
 818
 819         $super(transport);
 820     }
 821 });
 822 var SYJLogin = new SYJLoginClass();
 823
 824 var SYJNewpwdClass = Class.create(SYJModalClass, {
 825     type: "newpwd",
 826
 827     presubmit: function() {
 828         if (!(this.checkNotEmpty("newpwd_email", SyjStrings.emailEmptyWarn))) {
 829             return false;
 830         }
 831         this.reset();
 832         return true;
 833     },
 834     success: function(transport) {
 835         SYJView.messenger.setMessage(SyjStrings.newpwdSuccess, "success");
 836         this.modalbox.hide();
 837     }
 838
 839 });
 840 var SYJNewpwd = new SYJNewpwdClass();
 841
 842 var LoginMgr = Object.extend(gLoggedInfo, {
 843     controlsdeck: null,
 844
 845     updateUI: function() {
 846         if (!this.controlsdeck) {
 847             this.controlsdeck = new Deck("login_controls");
 848         }
 849         if (this.logged) {
 850             this.controlsdeck.setIndex(1);
 851             $$(".logged-hide").invoke('hide');
 852             $$(".logged-show").invoke('show');
 853         } else {
 854             this.controlsdeck.setIndex(0);
 855             $$(".logged-hide").invoke('show');
 856             $$(".logged-show").invoke('hide');
 857         }
 858
 859         if ($("edit-btn")) {
 860             if (this.iscreator && SYJView.mode === 'view') {
 861                 $("edit-btn").show();
 862             } else {
 863                 $("edit-btn").hide();
 864             }
 865         }
 866     },
 867
 868     login: function(aIsCreator) {
 869         if (typeof aIsCreator === "boolean") {
 870             this.iscreator = aIsCreator;
 871         }
 872         this.logged = true;
 873         this.updateUI();
 874     }
 875 });
 876
 877 var PseudoChecker = {
 878     req: null,
 879     exists: {},
 880     currentvalue: null,
 881     messageelt: null,
 882     throbber: null,
 883
 884     message: function(str, status, throbber) {
 885         var row;
 886         if (!this.messageelt) {
 887             row = new Element('tr');
 888             // we can't use row.update('<td></td><td><div></div></td>')
 889             // because gecko would mangle the <td>s
 890             row.insert(new Element('td'))
 891                .insert((new Element('td')).update(new Element('div')));
 892
 893             $("user_pseudo").up('tr').insert({after: row});
 894             this.messageelt = new Element('span');
 895             this.throbber = new Element("img", { src: "icons/pseudo-throbber.gif"});
 896             row.down('div').insert(this.throbber).insert(this.messageelt);
 897         }
 898         if (throbber) {
 899             this.throbber.show();
 900         } else {
 901             this.throbber.hide();
 902         }
 903         this.messageelt.up().setStyle({visibility: ''});
 904         this.messageelt.className = status;
 905         this.messageelt.update(str);
 906     },
 907
 908     availableMessage: function(available) {
 909         var message = available ? SyjStrings.availablePseudo: SyjStrings.unavailablePseudo,
 910             status = available ? "success": "warn";
 911         this.message(message, status, false);
 912     },
 913
 914     reset: function() {
 915         if (this.req) {
 916             this.req.abort();
 917             this.req = this.currentvalue = null;
 918         }
 919         if (this.messageelt) {
 920             this.messageelt.up().setStyle({visibility: 'hidden'});
 921         }
 922     },
 923
 924     check: function() {
 925         var pseudo = $("user_pseudo").value;
 926
 927         this.reset();
 928
 929         if (!pseudo || !(pseudo.match(/^[a-zA-Z0-9_.]+$/))) {
 930             return;
 931         }
 932
 933         if (typeof this.exists[pseudo] === "boolean") {
 934             this.reset();
 935             this.availableMessage(!this.exists[pseudo]);
 936             return;
 937         }
 938
 939         this.message(SyjStrings.pseudoChecking, "", true);
 940
 941         this.currentvalue = pseudo;
 942         this.req = new Ajax.TimedRequest('userexists/' + encodeURIComponent(pseudo), 20, {
 943             onFailure: this.failure.bind(this),
 944             onSuccess: this.success.bind(this)
 945         });
 946     },
 947
 948     failure: function(transport) {
 949         var httpCode = 0, value = this.currentvalue;
 950
 951         if (transport) {
 952             httpCode = transport.getStatus();
 953         }
 954         this.reset();
 955         if (httpCode === 404) {
 956             this.exists[value] = false;
 957             this.availableMessage(true);
 958         }
 959
 960     },
 961
 962     success: function(transport) {
 963         var httpCode = transport.getStatus(), value = this.currentvalue;
 964         this.reset();
 965         this.exists[value] = true;
 966         this.availableMessage(false);
 967     }
 968 };
 969
 970
 971 document.observe("dom:loaded", function() {
 972     SYJLogin.init();
 973     SYJUser.init();
 974     SYJView.init();
 975     SYJNewpwd.init();
 976     LoginMgr.updateUI();
 977 });