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| 1 // Copyright (c) 2012 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 var browserBridge; | |
| 6 | |
| 7 /** | |
| 8 * Class that keeps track of current burn process state. | |
| 9 * @param {Object} strings Localized state strings. | |
| 10 * @constructor | |
| 11 */ | |
| 12 function State(strings) { | |
| 13 this.setStrings(strings); | |
| 14 this.changeState(State.StatesEnum.DEVICE_NONE); | |
| 15 } | |
| 16 | |
| 17 /** | |
| 18 * State Enum object. | |
| 19 */ | |
| 20 State.StatesEnum = { | |
| 21 DEVICE_NONE: { | |
| 22 cssState: 'device-detected-none', | |
| 23 }, | |
| 24 DEVICE_USB: { | |
| 25 cssState: 'device-detected-usb warning', | |
| 26 }, | |
| 27 DEVICE_SD: { | |
| 28 cssState: 'device-detected-sd warning', | |
| 29 }, | |
| 30 DEVICE_MUL: { | |
| 31 cssState: 'device-detected-mul warning', | |
| 32 }, | |
| 33 ERROR_NO_NETWORK: { | |
| 34 cssState: 'warning-no-conf', | |
| 35 }, | |
| 36 ERROR_DEVICE_TOO_SMALL: { | |
| 37 cssState: 'warning-no-conf', | |
| 38 }, | |
| 39 PROGRESS_DOWNLOAD: { | |
| 40 cssState: 'progress progress-canceble', | |
| 41 }, | |
| 42 PROGRESS_UNZIP: { | |
| 43 cssState: 'progress progress-canceble', | |
| 44 }, | |
| 45 PROGRESS_BURN: { | |
| 46 cssState: 'progress', | |
| 47 }, | |
| 48 FAIL: { | |
| 49 cssState: 'error', | |
| 50 }, | |
| 51 SUCCESS: { | |
| 52 cssState: 'success', | |
| 53 }, | |
| 54 }; | |
| 55 | |
| 56 State.prototype = { | |
| 57 /** | |
| 58 * Sets the state strings. | |
| 59 * @param {Object} strings Localized state strings. | |
| 60 */ | |
| 61 setStrings: function(strings) { | |
| 62 State.StatesEnum.DEVICE_NONE.statusText = | |
| 63 strings.getString('statusDevicesNone'); | |
| 64 State.StatesEnum.DEVICE_NONE.warningText = | |
| 65 strings.getString('warningDevicesNone'); | |
| 66 State.StatesEnum.DEVICE_USB.statusText = | |
| 67 strings.getString('statusDeviceUSB'); | |
| 68 State.StatesEnum.DEVICE_SD.statusText = strings.getString('statusDeviceSD'); | |
| 69 State.StatesEnum.DEVICE_MUL.statusText = | |
| 70 strings.getString('statusDevicesMultiple'); | |
| 71 State.StatesEnum.ERROR_NO_NETWORK.statusText = | |
| 72 strings.getString('statusNoConnection'); | |
| 73 State.StatesEnum.ERROR_NO_NETWORK.warningText = | |
| 74 strings.getString('warningNoConnection'); | |
| 75 State.StatesEnum.ERROR_DEVICE_TOO_SMALL.statusText = | |
| 76 strings.getString('statusNoSpace'); | |
| 77 State.StatesEnum.PROGRESS_DOWNLOAD.statusText = | |
| 78 strings.getString('statusDownloading'); | |
| 79 State.StatesEnum.PROGRESS_UNZIP.statusText = | |
| 80 strings.getString('statusUnzip'); | |
| 81 State.StatesEnum.PROGRESS_BURN.statusText = strings.getString('statusBurn'); | |
| 82 State.StatesEnum.FAIL.statusText = strings.getString('statusError'); | |
| 83 State.StatesEnum.SUCCESS.statusText = strings.getString('statusSuccess'); | |
| 84 State.StatesEnum.SUCCESS.warningText = strings.getString('warningSuccess'); | |
| 85 }, | |
| 86 | |
| 87 /** | |
| 88 * Changes the current state to new state. | |
| 89 * @param {Object} newState Specifies the new state object. | |
| 90 */ | |
| 91 changeState: function(newState) { | |
| 92 if (newState == this.state) | |
| 93 return; | |
| 94 this.state = newState; | |
| 95 | |
| 96 $('main-content').className = this.state.cssState; | |
| 97 | |
| 98 $('status-text').textContent = this.state.statusText; | |
| 99 | |
| 100 if (newState.warningText) | |
| 101 $('warning-text').textContent = this.state.warningText; | |
| 102 | |
| 103 if (this.isInitialState() && this.state != State.StatesEnum.DEVICE_NONE) { | |
| 104 $('warning-button').textContent = loadTimeData.getString('confirmButton'); | |
| 105 } else if (this.state == State.StatesEnum.FAIL) { | |
| 106 $('warning-button').textContent = | |
| 107 loadTimeData.getString('retryButton'); | |
| 108 } | |
| 109 }, | |
| 110 | |
| 111 /** | |
| 112 * Reset to initial state. | |
| 113 * @param {Array} devices Array of device information. | |
| 114 */ | |
| 115 gotoInitialState: function(devices) { | |
| 116 if (devices.length == 0) { | |
| 117 this.changeState(State.StatesEnum.DEVICE_NONE); | |
| 118 } else if (devices.length == 1) { | |
| 119 // If a device type is not specified for some reason, we should | |
| 120 // default to display a USB device. | |
| 121 var initialState = State.StatesEnum.DEVICE_USB; | |
| 122 if (devices[0].type == 'sd') | |
| 123 initialState = State.StatesEnum.DEVICE_SD; | |
| 124 this.changeState(initialState); | |
| 125 } else { | |
| 126 this.changeState(State.StatesEnum.DEVICE_MUL); | |
| 127 } | |
| 128 }, | |
| 129 | |
| 130 /** | |
| 131 * Returns true if the device is in initial state. | |
| 132 * @return {boolean} True if the device is in initial state else false. | |
| 133 */ | |
| 134 isInitialState: function() { | |
| 135 return this.state == State.StatesEnum.DEVICE_NONE || | |
| 136 this.state == State.StatesEnum.DEVICE_USB || | |
| 137 this.state == State.StatesEnum.DEVICE_SD || | |
| 138 this.state == State.StatesEnum.DEVICE_MUL; | |
| 139 }, | |
| 140 | |
| 141 /** | |
| 142 * Returns true if device state matches the given state name. | |
| 143 * @param {string} stateName Given state name. | |
| 144 * @return {boolean} True if the device state matches the given state name. | |
| 145 */ | |
| 146 equals: function(stateName) { | |
| 147 return this.state == stateName; | |
| 148 } | |
| 149 }; | |
| 150 | |
| 151 /** | |
| 152 * Class that keeps track of available devices. | |
| 153 * @constructor | |
| 154 */ | |
| 155 function DeviceSelection() { | |
| 156 this.selectedDevice = undefined; | |
| 157 this.devices = []; | |
| 158 } | |
| 159 | |
| 160 DeviceSelection.prototype = { | |
| 161 /** | |
| 162 * Shows the currently selected device. | |
| 163 */ | |
| 164 showDeviceSelection: function() { | |
| 165 if (this.devices.length == 0) { | |
| 166 this.selectedDevice = undefined; | |
| 167 } else { | |
| 168 this.selectDevice(this.devices[0].devicePath); | |
| 169 } | |
| 170 }, | |
| 171 | |
| 172 /** | |
| 173 * Handles device selected event. | |
| 174 * @param {string} label Device label. | |
| 175 * @param {string} filePath File path. | |
| 176 * @param {string} devicePath Selected device path. | |
| 177 */ | |
| 178 onDeviceSelected: function(label, filePath, devicePath) { | |
| 179 $('warning-button').onclick = | |
| 180 browserBridge.sendBurnImageMessage.bind(browserBridge, filePath, | |
| 181 devicePath); | |
| 182 | |
| 183 this.selectedDevice = devicePath; | |
| 184 | |
| 185 $('warning-text').textContent = | |
| 186 loadTimeData.getStringF('warningDevices', label); | |
| 187 }, | |
| 188 | |
| 189 /** | |
| 190 * Selects the specified device based on the specified path. | |
| 191 * @param {string} path Device path. | |
| 192 */ | |
| 193 selectDevice: function(path) { | |
| 194 var element = $('radio-' + path); | |
| 195 element.checked = true; | |
| 196 element.onclick.apply(element); | |
| 197 }, | |
| 198 | |
| 199 /** | |
| 200 * Creates a new device element. | |
| 201 * @param {Object} device Specifies new device information. | |
| 202 * @return {HTMLLIElement} New device element. | |
| 203 */ | |
| 204 createNewDeviceElement: function(device) { | |
| 205 var element = document.createElement('li'); | |
| 206 var radioButton = document.createElement('input'); | |
| 207 radioButton.type = 'radio'; | |
| 208 radioButton.name = 'device'; | |
| 209 radioButton.value = device.label; | |
| 210 radioButton.id = 'radio-' + device.devicePath; | |
| 211 radioButton.className = 'float-start'; | |
| 212 var deviceLabelText = document.createElement('p'); | |
| 213 deviceLabelText.textContent = device.label; | |
| 214 deviceLabelText.className = 'select-option float-start'; | |
| 215 var newLine = document.createElement('div'); | |
| 216 newLine.className = 'new-line'; | |
| 217 element.appendChild(radioButton); | |
| 218 element.appendChild(deviceLabelText); | |
| 219 element.appendChild(newLine); | |
| 220 element.id = 'select-' + device.devicePath; | |
| 221 element.className = 'selection-element'; | |
| 222 radioButton.onclick = this.onDeviceSelected.bind(this, | |
| 223 device.label, device.filePath, device.devicePath); | |
| 224 return element; | |
| 225 }, | |
| 226 | |
| 227 /** | |
| 228 * Updates the list of selected devices. | |
| 229 * @param {Array} devices List of devices. | |
| 230 */ | |
| 231 devicesUpdated: function(newDevices) { | |
| 232 this.devices = newDevices; | |
| 233 var selectListDOM = $('device-selection'); | |
| 234 selectListDOM.innerHTML = ''; | |
| 235 if (this.devices.length > 0) { | |
| 236 for (var i = 0; i < this.devices.length; i++) { | |
| 237 var element = this.createNewDeviceElement(this.devices[i]); | |
| 238 selectListDOM.appendChild(element); | |
| 239 } | |
| 240 this.selectDevice(this.devices[0].devicePath); | |
| 241 } else { | |
| 242 this.selectedDevice = undefined; | |
| 243 } | |
| 244 }, | |
| 245 | |
| 246 /** | |
| 247 * Handles device added event. | |
| 248 * @param {Object} device Device information. | |
| 249 * @param {boolean} allowSelect True to update the selected device info. | |
| 250 */ | |
| 251 deviceAdded: function(device, allowSelect) { | |
| 252 this.devices.push(device); | |
| 253 var selectListDOM = $('device-selection'); | |
| 254 selectListDOM.appendChild(this.createNewDeviceElement(device)); | |
| 255 if (allowSelect && this.devices.length == 1) | |
| 256 this.selectDevice(device.devicePath); | |
| 257 }, | |
| 258 | |
| 259 /** | |
| 260 * Handles device removed event. | |
| 261 * @param {string} devicePath Device path to be removed. | |
| 262 * @param {boolean} allowSelect True to update the selected device info. | |
| 263 */ | |
| 264 deviceRemoved: function(devicePath, allowSelect) { | |
| 265 device = this.findDevice(devicePath); | |
| 266 if (!device) | |
| 267 return; | |
| 268 this.devices.splice(this.devices.indexOf(device), 1); | |
| 269 | |
| 270 // Remove device selection element from DOM. | |
| 271 var deviceSelectElement = $('select-' + devicePath); | |
| 272 deviceSelectElement.parentNode.removeChild(deviceSelectElement); | |
| 273 | |
| 274 // Update selected device element. | |
| 275 if (allowSelect) { | |
| 276 if (this.devices.length > 0) { | |
| 277 if (this.selectedDevice == devicePath) | |
| 278 this.selectDevice(this.devices[0].devicePath); | |
| 279 } else { | |
| 280 this.selectedDevice = undefined; | |
| 281 } | |
| 282 } | |
| 283 }, | |
| 284 | |
| 285 /** | |
| 286 * Finds device with given device path property. | |
| 287 * @param {string} devicePath Device path of device to find. | |
| 288 * @return {Object} Matching device information or undefined if not found. | |
| 289 */ | |
| 290 findDevice: function(devicePath) { | |
| 291 for (var i = 0; i < this.devices.length; ++i) { | |
| 292 if (this.devices[i].devicePath == devicePath) { | |
| 293 return this.devices[i]; | |
| 294 } | |
| 295 } | |
| 296 return undefined; | |
| 297 } | |
| 298 }; | |
| 299 | |
| 300 /** | |
| 301 * Class that handles communication with chrome. | |
| 302 * @constructor | |
| 303 */ | |
| 304 function BrowserBridge() { | |
| 305 this.currentState = new State(loadTimeData); | |
| 306 this.deviceSelection = new DeviceSelection(); | |
| 307 // We will use these often so it makes sence making them class members to | |
| 308 // avoid frequent document.getElementById calls. | |
| 309 this.progressElement = $('progress-div'); | |
| 310 this.progressText = $('progress-text'); | |
| 311 this.progressTimeLeftText = $('pending-time'); | |
| 312 } | |
| 313 | |
| 314 BrowserBridge.prototype = { | |
| 315 sendCancelMessage: function() { | |
| 316 chrome.send('cancelBurnImage'); | |
| 317 }, | |
| 318 | |
| 319 sendGetDevicesMessage: function() { | |
| 320 chrome.send('getDevices'); | |
| 321 }, | |
| 322 | |
| 323 sendWebuiInitializedMessage: function() { | |
| 324 chrome.send('webuiInitialized'); | |
| 325 }, | |
| 326 | |
| 327 /** | |
| 328 * Sends the burn image message to c++ code. | |
| 329 * @param {string} filePath Specifies the file path. | |
| 330 * @param {string} devicePath Specifies the device path. | |
| 331 */ | |
| 332 sendBurnImageMessage: function(filePath, devicePath) { | |
| 333 chrome.send('burnImage', [devicePath, filePath]); | |
| 334 }, | |
| 335 | |
| 336 reportSuccess: function() { | |
| 337 this.currentState.changeState(State.StatesEnum.SUCCESS); | |
| 338 }, | |
| 339 | |
| 340 /** | |
| 341 * Update the device state to report a failure and display an error message to | |
| 342 * the user. | |
| 343 * @param {string} errorMessage Specifies the warning text message. | |
| 344 */ | |
| 345 reportFail: function(errorMessage) { | |
| 346 this.currentState.changeState(State.StatesEnum.FAIL); | |
| 347 $('warning-text').textContent = errorMessage; | |
| 348 $('warning-button').onclick = this.onBurnRetry.bind(this); | |
| 349 }, | |
| 350 | |
| 351 /** | |
| 352 * Handles device added event. | |
| 353 * @param {Object} device Device information. | |
| 354 */ | |
| 355 deviceAdded: function(device) { | |
| 356 var inInitialState = this.currentState.isInitialState(); | |
| 357 this.deviceSelection.deviceAdded(device, inInitialState); | |
| 358 if (inInitialState) | |
| 359 this.currentState.gotoInitialState(this.deviceSelection.devices); | |
| 360 }, | |
| 361 | |
| 362 /** | |
| 363 * Handles device removed event. | |
| 364 * @param {string} devicePath Device path to be removed. | |
| 365 */ | |
| 366 deviceRemoved: function(devicePath) { | |
| 367 var inInitialState = this.currentState.isInitialState(); | |
| 368 this.deviceSelection.deviceRemoved(devicePath, inInitialState); | |
| 369 if (inInitialState) | |
| 370 this.currentState.gotoInitialState(this.deviceSelection.devices); | |
| 371 }, | |
| 372 | |
| 373 /** | |
| 374 * Gets device callbacks and update the current state. | |
| 375 * @param {Array} devices List of devices. | |
| 376 */ | |
| 377 getDevicesCallback: function(devices) { | |
| 378 this.deviceSelection.devicesUpdated(devices); | |
| 379 this.currentState.gotoInitialState(this.deviceSelection.devices); | |
| 380 this.sendWebuiInitializedMessage(); | |
| 381 }, | |
| 382 | |
| 383 /** | |
| 384 * Updates the progress information based on the signal received. | |
| 385 * @param {Object} updateSignal Specifies the signal information. | |
| 386 */ | |
| 387 updateProgress: function(updateSignal) { | |
| 388 if (updateSignal.progressType == 'download' && | |
| 389 !this.currentState.equals(State.StatesEnum.PROGRESS_DOWNLOAD)) { | |
| 390 this.currentState.changeState(State.StatesEnum.PROGRESS_DOWNLOAD); | |
| 391 } else if (updateSignal.progressType == 'unzip' && | |
| 392 !this.currentState.equals(State.StatesEnum.PROGRESS_UNZIP)) { | |
| 393 this.currentState.changeState(State.StatesEnum.PROGRESS_UNZIP); | |
| 394 } else if (updateSignal.progressType == 'burn' && | |
| 395 !this.currentState.equals(State.StatesEnum.PROGRESS_BURN)) { | |
| 396 this.currentState.changeState(State.StatesEnum.PROGRESS_BURN); | |
| 397 } | |
| 398 | |
| 399 if (!(updateSignal.amountTotal > 0)) { | |
| 400 this.progressElement.removeAttribute('value'); | |
| 401 } else { | |
| 402 this.progressElement.value = updateSignal.amountFinished; | |
| 403 this.progressElement.max = updateSignal.amountTotal; | |
| 404 } | |
| 405 | |
| 406 this.progressText.textContent = updateSignal.progressText; | |
| 407 this.progressTimeLeftText.textContent = updateSignal.timeLeftText; | |
| 408 }, | |
| 409 | |
| 410 reportNoNetwork: function() { | |
| 411 this.currentState.changeState(State.StatesEnum.ERROR_NO_NETWORK); | |
| 412 }, | |
| 413 | |
| 414 reportNetworkDetected: function() { | |
| 415 if (this.currentState.equals(State.StatesEnum.ERROR_NO_NETWORK)) { | |
| 416 this.deviceSelection.showDeviceSelection(); | |
| 417 this.currentState.gotoInitialState(this.deviceSelection.devices); | |
| 418 } | |
| 419 }, | |
| 420 | |
| 421 /** | |
| 422 * Updates the current state to report device too small error. | |
| 423 * @param {number} deviceSize Received device size. | |
| 424 */ | |
| 425 reportDeviceTooSmall: function(deviceSize) { | |
| 426 this.currentState.changeState(State.StatesEnum.ERROR_DEVICE_TOO_SMALL); | |
| 427 $('warning-text').textContent = | |
| 428 loadTimeData.getStringF('warningNoSpace', deviceSize); | |
| 429 }, | |
| 430 | |
| 431 /** | |
| 432 * Processes click on 'Retry' button in FAIL state. | |
| 433 */ | |
| 434 onBurnRetry: function() { | |
| 435 this.deviceSelection.showDeviceSelection(); | |
| 436 this.currentState.gotoInitialState(this.deviceSelection.devices); | |
| 437 } | |
| 438 }; | |
| 439 | |
| 440 document.addEventListener('DOMContentLoaded', function() { | |
| 441 browserBridge = new BrowserBridge(); | |
| 442 | |
| 443 $('cancel-button').onclick = | |
| 444 browserBridge.sendCancelMessage.bind(browserBridge); | |
| 445 browserBridge.sendGetDevicesMessage(); | |
| 446 }); | |
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