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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 /** | |
| 6 * @fileoverview Login Screen | |
| 7 * This is the main code for the login screen. | |
| 8 */ | |
| 9 | |
| 10 /** | |
| 11 * Simple common assertion API | |
| 12 * @param {*} condition The condition to test. Note that this may be used to | |
| 13 * test whether a value is defined or not, and we don't want to force a | |
| 14 * cast to Boolean. | |
| 15 * @param {string=} opt_message A message to use in any error. | |
| 16 */ | |
| 17 function assert(condition, opt_message) { | |
| 18 if (condition) | |
| 19 return; | |
| 20 | |
| 21 var msg = 'Assertion failed'; | |
| 22 if (opt_message) | |
| 23 msg = msg + ': ' + opt_message; | |
| 24 throw new Error(msg); | |
| 25 } | |
| 26 | |
| 27 var LoginScreen = (function() { | |
| 28 'use strict'; | |
| 29 | |
| 30 function LoginScreen() { | |
| 31 } | |
| 32 | |
| 33 LoginScreen.prototype = { | |
| 34 /** | |
| 35 * The guest card object | |
| 36 * @type {Slider|undefined} | |
| 37 * private | |
| 38 */ | |
| 39 guestCard_: null, | |
| 40 | |
| 41 /** | |
| 42 * The Slider object to use for scrolling through users. | |
| 43 * @type {Slider|undefined} | |
| 44 */ | |
| 45 slider_: null, | |
| 46 | |
| 47 /** | |
| 48 * Template to use for creating new 'user-card' elements | |
| 49 * @type {!Element|undefined} | |
| 50 */ | |
| 51 userCardTemplate_: null, | |
| 52 | |
| 53 /** | |
| 54 * Indicates whether the shift key is down. | |
| 55 * @type {bool} | |
| 56 */ | |
| 57 isShiftPressed_: false, | |
| 58 | |
| 59 /** | |
| 60 * Indicates whether the alt key is down. | |
| 61 * @type {bool} | |
| 62 */ | |
| 63 isAltPressed_: false, | |
| 64 | |
| 65 /** | |
| 66 * Indicates whether the ctrl key is down. | |
| 67 * @type {bool} | |
| 68 */ | |
| 69 isCtrlPressed_: false, | |
| 70 | |
| 71 /** | |
| 72 * Holds all event handlers tied to users (and so subject to removal when | |
| 73 * the user list is refreshed) | |
| 74 * @type {!EventTracker} | |
| 75 */ | |
| 76 userEvents_: null, | |
| 77 | |
| 78 /** | |
| 79 * Removes all children of an element which have a given class in | |
| 80 * their classList. | |
| 81 * @param {!Element} element The parent element to examine. | |
| 82 * @param {string} className The class to look for. | |
| 83 */ | |
| 84 removeChildrenByClassName_: function (element, className) { | |
| 85 var child = element.firstElementChild; | |
| 86 while (child) { | |
| 87 var prev = child; | |
| 88 child = child.nextElementSibling; | |
| 89 if (prev.classList.contains(className)) | |
| 90 element.removeChild(prev); | |
| 91 } | |
| 92 }, | |
| 93 | |
| 94 /** | |
| 95 * Search an elements ancestor chain for the nearest element that is a | |
| 96 * member of the specified class. | |
| 97 * @param {!Element} element The element to start searching from. | |
| 98 * @param {string} className The name of the class to locate. | |
| 99 * @return {Element} The first ancestor of the specified class or null. | |
| 100 */ | |
| 101 getParentByClassName_: function(element, className) { | |
| 102 for (var e = element; e; e = e.parentElement) { | |
| 103 if (e.classList.contains(className)) | |
| 104 return e; | |
| 105 } | |
| 106 return null; | |
| 107 }, | |
| 108 | |
| 109 /** | |
| 110 * Create a new user element and attach it to the end of the slider. | |
| 111 * @param {!Element} parent The element where the user should be inserted. | |
| 112 * @param {!Object} user The user object to user box for. | |
| 113 */ | |
| 114 addUser: function(parent, user, index) { | |
| 115 // Make a deep copy of the template and clear its ID | |
| 116 var containerElement = this.userCardTemplate_.cloneNode(true); | |
| 117 this.userCardTemplate_.id = null; | |
| 118 | |
| 119 var userElement = containerElement.getElementsByClassName('user')[0]; | |
| 120 assert(userElement, 'Expected user-template to have a user child'); | |
| 121 assert(typeof(user.name) == 'string', | |
| 122 'Expected every user to have a name.'); | |
| 123 | |
| 124 userElement.setAttribute('display-name', user.name); | |
| 125 userElement.setAttribute('user-name', user.emailAddress); | |
| 126 userElement.setAttribute('user-index', index); | |
| 127 | |
| 128 // Find the span element (if any) and fill it in with the app name | |
| 129 var span = userElement.querySelector('span'); | |
| 130 if (span) | |
| 131 span.textContent = user.name; | |
| 132 | |
| 133 // Fill in the image | |
| 134 var userImg = userElement.getElementsByClassName('user-image')[0]; | |
| 135 if (userImg) { | |
| 136 userImg.style.backgroundImage = "url('" + user.imageUrl + "')"; | |
| 137 // We put a click handler just on the user image - so clicking on the | |
| 138 // margins between users doesn't do anything | |
| 139 var self = this; | |
| 140 this.userEvents_.add(userImg, 'click', function(e) { | |
| 141 self.userClick(e); | |
| 142 }, false); | |
| 143 } | |
| 144 var userLoginBox = | |
| 145 userElement.getElementsByClassName('user-login-box')[0]; | |
| 146 var guestLoginBox = | |
| 147 userElement.getElementsByClassName('guest-login-box')[0]; | |
| 148 var isGuest = !user.email_address; | |
| 149 if (!isGuest) { | |
| 150 containerElement.addEventListener(Slider.EventType.ACTIVATE, | |
| 151 this.userActivateCard); | |
| 152 containerElement.addEventListener(Slider.EventType.DEACTIVATE, | |
| 153 this.userDeactivateCard); | |
| 154 | |
| 155 var deleteButton = | |
| 156 userElement.getElementsByClassName('delete-button')[0]; | |
| 157 deleteButton.addEventListener('click', this.userDeleteCard); | |
| 158 | |
| 159 userLoginBox.addEventListener('keypress', function(e) { | |
| 160 userLoginKeyPress(e, userElement); | |
| 161 }); | |
| 162 } else { | |
| 163 this.guestCard_ = containerElement; | |
| 164 | |
| 165 containerElement.addEventListener(Slider.EventType.ACTIVATE, | |
| 166 this.guestActivateCard); | |
| 167 containerElement.addEventListener(Slider.EventType.DEACTIVATE, | |
| 168 this.guestDeactivateCard); | |
| 169 | |
| 170 userLoginBox.hidden = true; | |
| 171 | |
| 172 var loginButton = | |
| 173 guestLoginBox.getElementsByClassName('loginbutton')[0]; | |
| 174 loginButton.addEventListener('click', function(e) { | |
| 175 chrome.send('launchIncognito', []); | |
| 176 // Don't allow the click to trigger a link or anything | |
| 177 e.preventDefault(); | |
| 178 // Prevent the user-frame from receiving the event. | |
| 179 e.stopPropagation(); | |
| 180 }, true); | |
| 181 } | |
| 182 | |
| 183 // Insert at the end of the provided page | |
| 184 parent.appendChild(containerElement); | |
| 185 // Display the container element | |
| 186 containerElement.hidden = false; | |
| 187 }, | |
| 188 | |
| 189 /** | |
| 190 * Invoked when a user is clicked | |
| 191 * @param {Event} e The click event. | |
| 192 */ | |
| 193 userClick: function(e) { | |
| 194 var target = e.currentTarget; | |
| 195 var user = this.getParentByClassName_(target, 'user'); | |
| 196 assert(user, 'userClick should have been on a descendant of a user'); | |
| 197 | |
| 198 var userIndex = user.getAttribute('user-index'); | |
| 199 assert(userIndex, 'unexpected user without userIndex'); | |
| 200 | |
| 201 if (this.slider.currentCardIndex == null) { | |
| 202 this.slider.currentCardIndex = userIndex; | |
| 203 } else { | |
| 204 // get out of user selected mode. | |
| 205 this.slider.currentCardIndex = null; | |
| 206 } | |
| 207 | |
| 208 // Don't allow the click to trigger a link or anything | |
| 209 e.preventDefault(); | |
| 210 // Prevent the user-frame from receiving the event. | |
| 211 e.stopPropagation(); | |
| 212 }, | |
| 213 | |
| 214 /** | |
| 215 * Invoked when the selected user card changes | |
| 216 * @param {Event} e The selection changed event. | |
| 217 */ | |
| 218 userFrameSelectionChanged: function(e) { | |
| 219 var userCards = $('user-list').getElementsByClassName('user-card'); | |
| 220 for (var i = 0; i < userCards.length; i++) { | |
| 221 if (e.activeCardIndex == null || i == e.activeCardIndex) { | |
| 222 userCards[i].classList.remove('user-card-grayed'); | |
| 223 } else { | |
| 224 userCards[i].classList.add('user-card-grayed'); | |
| 225 } | |
| 226 } | |
| 227 }, | |
| 228 | |
| 229 /** | |
| 230 * Invoked when the guest card is activated. | |
| 231 * @param {Event} e The Activate Card event | |
| 232 */ | |
| 233 guestActivateCard: function(e) { | |
| 234 var card = e.target; | |
| 235 var user = card.getElementsByClassName('user')[0]; | |
| 236 | |
| 237 // Focus the card. | |
| 238 user.classList.add('focus'); | |
| 239 | |
| 240 assert(user, 'user element not found'); | |
| 241 | |
| 242 // Hide the guest box. | |
| 243 var guestBox = user.querySelector('span'); | |
| 244 guestBox.hidden = true; | |
| 245 | |
| 246 // This is a guest. | |
| 247 var guestLoginBox = user.getElementsByClassName('guest-login-box')[0]; | |
| 248 assert(guestLoginBox, 'guest login box not found'); | |
| 249 // Show the guest login box. | |
| 250 guestLoginBox.hidden = false; | |
| 251 }, | |
| 252 | |
| 253 /** | |
| 254 * Invoked when the guest card is deactivated. | |
| 255 * @param {Event} e The Deactivate Card event | |
| 256 */ | |
| 257 guestDeactivateCard: function(e) { | |
| 258 var card = e.target; | |
| 259 var user = card.getElementsByClassName('user')[0]; | |
| 260 assert(user, 'user element not found'); | |
| 261 // Show the guest box. | |
| 262 var guestBox = user.querySelector('span'); | |
| 263 guestBox.hidden = false; | |
| 264 // Unfocus the card. | |
| 265 user.classList.remove('focus'); | |
| 266 // Hide the guest login box | |
| 267 var guestLoginBox = user.getElementsByClassName('guest-login-box')[0]; | |
| 268 assert(guestLoginBox, 'guest login box not found'); | |
| 269 guestLoginBox.hidden = true; | |
| 270 }, | |
| 271 | |
| 272 /** | |
| 273 * Invoked when the user card delete button is clicked | |
| 274 * @param {Event} e The Click event. | |
| 275 */ | |
| 276 userDeleteCard: function(e) { | |
| 277 var deleteButton = e.target; | |
| 278 var userImageBorderBox = deleteButton.parentNode; | |
| 279 var userElement = userImageBorderBox.parentNode; | |
| 280 var userCard = userElement.parentNode; | |
| 281 $('user-list').removeChild(userCard); | |
| 282 | |
| 283 // Update the user indicies | |
| 284 var usersOnList = $('user-list').getElementsByClassName('user-card'); | |
| 285 for (var userIndex = 0; userIndex < usersOnList.length; userIndex++) { | |
| 286 var uElement = usersOnList[userIndex].getElementsByClassName('user')[0]; | |
| 287 uElement.setAttribute('user-index', userIndex); | |
| 288 } | |
| 289 this.updateSliderCards(); | |
| 290 | |
| 291 chrome.send('removeUser', [getUserName(userElement)]); | |
| 292 }, | |
| 293 | |
| 294 /** | |
| 295 * Invoked when the user card is activated. | |
| 296 * @param {Event} e The Activate Card event | |
| 297 */ | |
| 298 userActivateCard: function(e) { | |
| 299 var card = e.target; | |
| 300 var user = card.getElementsByClassName('user')[0]; | |
| 301 assert(user, 'user element not found'); | |
| 302 | |
| 303 // Focus the card. | |
| 304 user.classList.add('focus'); | |
| 305 | |
| 306 // Hide the email box. | |
| 307 var emailBox = user.querySelector('span'); | |
| 308 emailBox.hidden = true; | |
| 309 | |
| 310 // Show the login box | |
| 311 var userLoginBox = user.getElementsByClassName('user-login-box')[0]; | |
| 312 assert(userLoginBox, 'user login box not found'); | |
| 313 userLoginBox.hidden = false; | |
| 314 | |
| 315 // Clear and focus the password box. | |
| 316 var passwordBox = userLoginBox.getElementsByClassName('passwordbox')[0]; | |
| 317 assert(passwordBox, 'passwordBox element not found'); | |
| 318 passwordBox.value = ''; | |
| 319 passwordBox.focus(); | |
| 320 | |
| 321 // Show the delete button. | |
| 322 var deleteButton = user.getElementsByClassName('delete-button')[0]; | |
| 323 deleteButton.hidden = false; | |
| 324 }, | |
| 325 | |
| 326 /** | |
| 327 * Invoked when the user card is deactivated. | |
| 328 * @param {Event} e The Deactivate Card event | |
| 329 */ | |
| 330 userDeactivateCard: function(e) { | |
| 331 var card = e.target; | |
| 332 var user = card.getElementsByClassName('user')[0]; | |
| 333 assert(user, 'user element not found'); | |
| 334 | |
| 335 // Unfocus the card. | |
| 336 user.classList.remove('focus'); | |
| 337 | |
| 338 // Hide the user login box | |
| 339 var userLoginBox = user.getElementsByClassName('user-login-box')[0]; | |
| 340 assert(userLoginBox, 'user login box not found'); | |
| 341 userLoginBox.hidden = true; | |
| 342 | |
| 343 // Show the email box. | |
| 344 var emailBox = user.querySelector('span'); | |
| 345 emailBox.hidden = false; | |
| 346 | |
| 347 // Hide the delete button. | |
| 348 var deleteButton = user.getElementsByClassName('delete-button')[0]; | |
| 349 deleteButton.hidden = true; | |
| 350 }, | |
| 351 | |
| 352 /** | |
| 353 * Invoked whenever the users in user-list have changed so that | |
| 354 * the Slider knows about the new elements. | |
| 355 */ | |
| 356 updateSliderCards: function() { | |
| 357 var userCards = $('user-list').getElementsByClassName('user-card'); | |
| 358 var cardArray = []; | |
| 359 for (var i = 0; i < userCards.length; i++) | |
| 360 cardArray[i] = userCards[i]; | |
| 361 this.slider.setCards(cardArray, 0); | |
| 362 }, | |
| 363 | |
| 364 getUsersCallback: function(users) { | |
| 365 this.userEvents_.removeAll(); | |
| 366 // grab the add-user-card before we remove it from the list. | |
| 367 var addUserCard = $('add-user-card'); | |
| 368 // remove all user cards | |
| 369 this.removeChildrenByClassName_($('user-list'), 'user-card'); | |
| 370 | |
| 371 // Add the "Add User" card to the user list. | |
| 372 $('user-list').appendChild(addUserCard); | |
| 373 // Add the users to the user list. | |
| 374 for (var i = 0; i < users.length; i++) { | |
| 375 var user = users[i]; | |
| 376 this.addUser($('user-list'), user, i + 1); | |
| 377 } | |
| 378 | |
| 379 // Tell the slider about the pages | |
| 380 this.updateSliderCards(); | |
| 381 | |
| 382 var dummy = $('user-frame').offsetWidth; | |
| 383 $('user-frame').style.visibility = 'visible'; | |
| 384 }, | |
| 385 | |
| 386 /** | |
| 387 * Returns the 'display-name' attribute of a 'user' element. | |
| 388 * @param {!Element} element The 'user' element. | |
| 389 */ | |
| 390 getDisplayName: function(userElement) { | |
| 391 // TODO: verify type of user element | |
| 392 return userElement.getAttribute('display-name'); | |
| 393 }, | |
| 394 | |
| 395 /** | |
| 396 * Returns the 'user-name' attribute of a 'user' element. | |
| 397 * @param {!Element} element The 'user' element. | |
| 398 */ | |
| 399 getUserName: function(userElement) { | |
| 400 // TODO: verify type of user element | |
| 401 return userElement.getAttribute('user-name'); | |
| 402 }, | |
| 403 | |
| 404 /** | |
| 405 * Handles keyboard navigation of the login screen. | |
| 406 * @param {!Event} element The keypress event. | |
| 407 */ | |
| 408 userLoginKeyPress: function(e, userElement) { | |
| 409 if (e.keyCode == 13) { | |
| 410 e.preventDefault(); | |
| 411 assert(userElement.classList.contains('user'), | |
| 412 'The parent element is not a user element.'); | |
| 413 | |
| 414 var userImg = userElement.getElementsByClassName('user-image')[0]; | |
| 415 var userLoginBox = | |
| 416 userElement.getElementsByClassName('user-login-box')[0]; | |
| 417 var passwordBox = userLoginBox.getElementsByClassName('passwordbox')[0]; | |
| 418 | |
| 419 var userName = getUserName(userElement); | |
| 420 var password = passwordBox.value; | |
| 421 if (password.length > 0) { | |
| 422 chrome.send('authenticateUser', [userName, password]); | |
| 423 return false; | |
| 424 } | |
| 425 } | |
| 426 return true; | |
| 427 }, | |
| 428 | |
| 429 loginKeyDown: function(e) { | |
| 430 switch (e.keyCode) { | |
| 431 // shift key down | |
| 432 case 16: | |
| 433 this.isShiftPressed_ = true; | |
| 434 break; | |
| 435 // ctrl key down | |
| 436 case 17: | |
| 437 this.isCtrlPressed_ = true; | |
| 438 break; | |
| 439 // alt key down | |
| 440 case 18: | |
| 441 this.isAltPressed_ = true; | |
| 442 break; | |
| 443 } | |
| 444 var keystroke = String.fromCharCode(e.keyCode); | |
| 445 switch (keystroke) { | |
| 446 case 'U': | |
| 447 if (this.isAltPressed_) { | |
| 448 this.slider.currentCardIndex = 0; | |
| 449 // focus the email box. | |
| 450 var emailBox = | |
| 451 $('add-user-card').getElementsByClassName('emailbox')[0]; | |
| 452 assert(emailBox, 'Add User e-mail box not found'); | |
| 453 emailBox.focus(); | |
| 454 } | |
| 455 break; | |
| 456 case 'P': | |
| 457 if (this.isAltPressed_) { | |
| 458 if (this.slider.currentCard == null) { | |
| 459 this.slider.currentCardIndex = 0; | |
| 460 } | |
| 461 var passwordBox = | |
| 462 this.slider.currentCard.getElementsByClassName('passwordbox')[0]; | |
| 463 assert(passwordBox, 'password box not found'); | |
| 464 passwordBox.focus(); | |
| 465 } | |
| 466 break; | |
| 467 case 'B': | |
| 468 if (this.isAltPressed_) { | |
| 469 var guestElement = | |
| 470 this.guestCard_.getElementsByClassName('user')[0]; | |
| 471 var guestIndex = guestElement.getAttribute('user-index'); | |
| 472 assert(guestIndex, 'unexpected user without userIndex'); | |
| 473 this.slider.currentCardIndex = guestIndex; | |
| 474 setTimeout(function() { | |
| 475 // TODO(fsamuel): Make this call a common function. | |
| 476 chrome.send('launchIncognito', []); | |
| 477 }, 50); | |
| 478 } | |
| 479 break; | |
| 480 default: | |
| 481 switch (e.keyCode) { | |
| 482 // enter pressed. | |
| 483 case 13: | |
| 484 if (this.slider.currentCard == guestCard_) { | |
| 485 // TODO(fsamuel): Enter Incognito mode | |
| 486 } | |
| 487 break; | |
| 488 // escape pressed. | |
| 489 case 27: | |
| 490 // If we pressed the escape key then don't select any user. | |
| 491 this.slider.currentCardIndex = null; | |
| 492 break; | |
| 493 // left arrow pressed. | |
| 494 case 37: | |
| 495 if (this.slider.currentCardIndex == null) { | |
| 496 // TODO(fsamuel): This should be go to last active card + 1 | |
| 497 this.slider.currentCardIndex = this.slider.cardCount() - 1; | |
| 498 } else if (this.slider.currentCardIndex > 0) { | |
| 499 this.slider.currentCardIndex -= 1; | |
| 500 } | |
| 501 break; | |
| 502 // right arrow pressed. | |
| 503 case 39: | |
| 504 if (this.slider.currentCardIndex == null) { | |
| 505 // TODO(fsamuel): This should be go to last active card - 1 | |
| 506 this.slider.currentCardIndex = 0; | |
| 507 } else if (this.slider.currentCardIndex < | |
| 508 this.slider.cardCount() - 1) { | |
| 509 this.slider.currentCardIndex += 1; | |
| 510 } | |
| 511 break; | |
| 512 } // switch | |
| 513 } // switch | |
| 514 }, | |
| 515 | |
| 516 loginKeyUp: function(e) { | |
| 517 switch (e.keyCode) { | |
| 518 // shift key up. | |
| 519 case 16: | |
| 520 this.isShiftPressed_ = false; | |
| 521 break; | |
| 522 // ctrl key up. | |
| 523 case 17: | |
| 524 this.isCtrlPressed_ = false; | |
| 525 break; | |
| 526 // alt key up. | |
| 527 case 18: | |
| 528 this.isAltPressed_ = false; | |
| 529 break; | |
| 530 } | |
| 531 }, | |
| 532 | |
| 533 /** | |
| 534 * Creates the Add User card and inserts it into the slider. | |
| 535 * TODO(fsamuel): This is here only temporarily. We should eventually remove | |
| 536 * this card. | |
| 537 */ | |
| 538 initializeAddUserCard: function(e) { | |
| 539 var emailBox = $('add-user-card').getElementsByClassName('emailbox')[0]; | |
| 540 assert(emailBox, 'Add User e-mail box not found'); | |
| 541 var passwordBox = | |
| 542 $('add-user-card').getElementsByClassName('passwordbox')[0]; | |
| 543 assert(passwordBox, 'Add User password box not found'); | |
| 544 | |
| 545 var user = $('add-user-card').getElementsByClassName('user')[0]; | |
| 546 // Clicking the Add User icon hides the icon and shows | |
| 547 // the user name and password input boxes | |
| 548 var self = this; | |
| 549 $('add-user').addEventListener('click', function(e) { | |
| 550 self.userClick(e); | |
| 551 }); | |
| 552 $('add-user-card').addEventListener(Slider.EventType.ACTIVATE, | |
| 553 function(e) { | |
| 554 //$('add-user-spacer').style.display = 'block'; | |
| 555 // Focus the card. | |
| 556 user.classList.add('focus'); | |
| 557 | |
| 558 // Hide the Add User Icon, and show the input boxes. | |
| 559 $('add-user').parentNode.hidden = true; | |
| 560 $('add-user-box').hidden = false; | |
| 561 | |
| 562 // Focus the email box and clear the password box. | |
| 563 emailBox.focus(); | |
| 564 passwordBox.value = ''; | |
| 565 }, false); | |
| 566 | |
| 567 $('add-user-card').addEventListener(Slider.EventType.DEACTIVATE, | |
| 568 function(e) { | |
| 569 //$('add-user-spacer').style.display = 'none'; | |
| 570 // Unfocus the card. | |
| 571 user.classList.remove('focus'); | |
| 572 | |
| 573 $('add-user').parentNode.hidden = false; | |
| 574 $('add-user-box').hidden = true; | |
| 575 document.body.focus(); | |
| 576 }, false); | |
| 577 | |
| 578 // Prevent blurring of a textfield if focus is shifted to the body. | |
| 579 // This makes sure that the keyboard remains up until we hide the | |
| 580 // Add User box. | |
| 581 var focusedElement = null; | |
| 582 emailBox.addEventListener('focus', function(e) { | |
| 583 focusedElement = emailBox; | |
| 584 }); | |
| 585 passwordBox.addEventListener('focus', function(e) { | |
| 586 focusedElement = passwordBox; | |
| 587 }); | |
| 588 document.body.addEventListener('focus', function(e) { | |
| 589 if (focusedElement) { | |
| 590 focusedElement.focus(); | |
| 591 e.preventDefault(); | |
| 592 } | |
| 593 }); | |
| 594 | |
| 595 // Prevent the slider from receiving click events and canceling | |
| 596 // the Add User card. | |
| 597 $('add-user-box').addEventListener('click', function(e) { | |
| 598 e.preventDefault(); | |
| 599 e.stopPropagation(); | |
| 600 }, false); | |
| 601 | |
| 602 emailBox.addEventListener('keypress', function(e) { | |
| 603 e.stopPropagation(); | |
| 604 if (e.keyCode == 13) { | |
| 605 if (emailBox.value.length > 0) { | |
| 606 passwordBox.focus(); | |
| 607 } | |
| 608 } | |
| 609 }); | |
| 610 | |
| 611 passwordBox.addEventListener('keypress', function(e) { | |
| 612 if (e.keyCode == 13) { | |
| 613 chrome.send('authenticateUser', [emailBox.value, passwordBox.value]); | |
| 614 } | |
| 615 }, true); | |
| 616 }, | |
| 617 | |
| 618 initialize: function() { | |
| 619 this.userEvents_ = new EventTracker(); | |
| 620 // Request data on the users so we can fill them in. | |
| 621 // Note that this is kicked off asynchronously. 'getUsersCallback' will | |
| 622 // be invoked at some point after this function returns. | |
| 623 chrome.send('getUsers'); | |
| 624 | |
| 625 // Prevent touch events from triggering any sort of native scrolling | |
| 626 document.addEventListener('touchmove', function(e) { | |
| 627 e.preventDefault(); | |
| 628 }, true); | |
| 629 | |
| 630 this.userCardTemplate_ = $('user-template'); | |
| 631 this.userCardTemplate_.id = null; | |
| 632 $('user-list').removeChild(this.userCardTemplate_); | |
| 633 $('user-frame').addEventListener(Slider.EventType.SELECTION_CHANGED, | |
| 634 this.userFrameSelectionChanged); | |
| 635 | |
| 636 // Initialize the slider without any cards at the moment | |
| 637 this.slider = new Slider($('user-frame'), $('user-list'), []); | |
| 638 this.slider.initialize(); | |
| 639 | |
| 640 this.initializeAddUserCard(); | |
| 641 | |
| 642 // Bind on bubble phase | |
| 643 var self = this; | |
| 644 $('user-frame').addEventListener('click', function() { | |
| 645 self.slider.currentCardIndex = null; | |
| 646 }, false); | |
| 647 document.addEventListener('keydown', function(e) { | |
| 648 self.loginKeyDown(e); | |
| 649 }, true); | |
| 650 document.addEventListener('keyup', function(e) { | |
| 651 self.loginKeyUp(e); | |
| 652 }, true); | |
| 653 } | |
| 654 }; | |
| 655 | |
| 656 return LoginScreen; | |
| 657 })(); | |
| 658 | |
| 659 | |
| 660 var getUsersCallback = null; | |
| 661 | |
| 662 document.addEventListener('DOMContentLoaded', function() { | |
| 663 var loginScreenObj = new LoginScreen(); | |
| 664 getUsersCallback = function(users) { | |
| 665 // call with the appropriate this. | |
| 666 loginScreenObj.getUsersCallback(users); | |
| 667 } | |
| 668 loginScreenObj.initialize(); | |
| 669 }, false); | |
| 670 | |
| 671 // Disable text selection. | |
| 672 document.onselectstart = function(e) { | |
| 673 e.preventDefault(); | |
| 674 } | |
| 675 | |
| 676 // Disable dragging. | |
| 677 document.ondragstart = function(e) { | |
| 678 e.preventDefault(); | |
| 679 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 7980012:
[ChromeOS] Reland - Make WebUI login use only needed resources. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src