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 cr.define('print_preview', function() { 6 'use strict'; 7 8 /** 9 * An interface to the native Chromium printing system layer. 10 * @constructor 11 * @extends {cr.EventTarget} 12 */ 13 function NativeLayer() { 14 cr.EventTarget.call(this); 15 16 // Bind global handlers 17 global['setInitialSettings'] = this.onSetInitialSettings_.bind(this); 18 global['setUseCloudPrint'] = this.onSetUseCloudPrint_.bind(this); 19 global['setPrinters'] = this.onSetPrinters_.bind(this); 20 global['updateWithPrinterCapabilities'] = 21 this.onUpdateWithPrinterCapabilities_.bind(this); 22 global['failedToGetPrinterCapabilities'] = 23 this.onFailedToGetPrinterCapabilities_.bind(this); 24 global['failedToGetPrivetPrinterCapabilities'] = 25 this.onFailedToGetPrivetPrinterCapabilities_.bind(this); 26 global['reloadPrintersList'] = this.onReloadPrintersList_.bind(this); 27 global['printToCloud'] = this.onPrintToCloud_.bind(this); 28 global['fileSelectionCancelled'] = 29 this.onFileSelectionCancelled_.bind(this); 30 global['fileSelectionCompleted'] = 31 this.onFileSelectionCompleted_.bind(this); 32 global['printPreviewFailed'] = this.onPrintPreviewFailed_.bind(this); 33 global['invalidPrinterSettings'] = 34 this.onInvalidPrinterSettings_.bind(this); 35 global['onDidGetDefaultPageLayout'] = 36 this.onDidGetDefaultPageLayout_.bind(this); 37 global['onDidGetPreviewPageCount'] = 38 this.onDidGetPreviewPageCount_.bind(this); 39 global['onDidPreviewPage'] = this.onDidPreviewPage_.bind(this); 40 global['updatePrintPreview'] = this.onUpdatePrintPreview_.bind(this); 41 global['printScalingDisabledForSourcePDF'] = 42 this.onPrintScalingDisabledForSourcePDF_.bind(this); 43 global['onDidGetAccessToken'] = this.onDidGetAccessToken_.bind(this); 44 global['autoCancelForTesting'] = this.autoCancelForTesting_.bind(this); 45 global['onPrivetPrinterChanged'] = this.onPrivetPrinterChanged_.bind(this); 46 global['onPrivetCapabilitiesSet'] = 47 this.onPrivetCapabilitiesSet_.bind(this); 48 global['onPrivetPrintFailed'] = this.onPrivetPrintFailed_.bind(this); 49 }; 50 51 /** 52 * Event types dispatched from the Chromium native layer. 53 * @enum {string} 54 * @const 55 */ 56 NativeLayer.EventType = { 57 ACCESS_TOKEN_READY: 'print_preview.NativeLayer.ACCESS_TOKEN_READY', 58 CAPABILITIES_SET: 'print_preview.NativeLayer.CAPABILITIES_SET', 59 CLOUD_PRINT_ENABLE: 'print_preview.NativeLayer.CLOUD_PRINT_ENABLE', 60 DESTINATIONS_RELOAD: 'print_preview.NativeLayer.DESTINATIONS_RELOAD', 61 DISABLE_SCALING: 'print_preview.NativeLayer.DISABLE_SCALING', 62 FILE_SELECTION_CANCEL: 'print_preview.NativeLayer.FILE_SELECTION_CANCEL', 63 FILE_SELECTION_COMPLETE: 64 'print_preview.NativeLayer.FILE_SELECTION_COMPLETE', 65 GET_CAPABILITIES_FAIL: 'print_preview.NativeLayer.GET_CAPABILITIES_FAIL', 66 INITIAL_SETTINGS_SET: 'print_preview.NativeLayer.INITIAL_SETTINGS_SET', 67 LOCAL_DESTINATIONS_SET: 'print_preview.NativeLayer.LOCAL_DESTINATIONS_SET', 68 PAGE_COUNT_READY: 'print_preview.NativeLayer.PAGE_COUNT_READY', 69 PAGE_LAYOUT_READY: 'print_preview.NativeLayer.PAGE_LAYOUT_READY', 70 PAGE_PREVIEW_READY: 'print_preview.NativeLayer.PAGE_PREVIEW_READY', 71 PREVIEW_GENERATION_DONE: 72 'print_preview.NativeLayer.PREVIEW_GENERATION_DONE', 73 PREVIEW_GENERATION_FAIL: 74 'print_preview.NativeLayer.PREVIEW_GENERATION_FAIL', 75 PRINT_TO_CLOUD: 'print_preview.NativeLayer.PRINT_TO_CLOUD', 76 SETTINGS_INVALID: 'print_preview.NativeLayer.SETTINGS_INVALID', 77 PRIVET_PRINTER_CHANGED: 'print_preview.NativeLayer.PRIVET_PRINTER_CHANGED', 78 PRIVET_CAPABILITIES_SET: 79 'print_preview.NativeLayer.PRIVET_CAPABILITIES_SET', 80 PRIVET_PRINT_FAILED: 'print_preview.NativeLayer.PRIVET_PRINT_FAILED' 81 }; 82 83 /** 84 * Constant values matching printing::DuplexMode enum. 85 * @enum {number} 86 */ 87 NativeLayer.DuplexMode = { 88 SIMPLEX: 0, 89 LONG_EDGE: 1, 90 UNKNOWN_DUPLEX_MODE: -1 91 }; 92 93 /** 94 * Enumeration of color modes used by Chromium. 95 * @enum {number} 96 * @private 97 */ 98 NativeLayer.ColorMode_ = { 99 GRAY: 1, 100 COLOR: 2 101 }; 102 103 /** 104 * Version of the serialized state of the print preview. 105 * @type {number} 106 * @const 107 * @private 108 */ 109 NativeLayer.SERIALIZED_STATE_VERSION_ = 1; 110 111 NativeLayer.prototype = { 112 __proto__: cr.EventTarget.prototype, 113 114 /** 115 * Requests access token for cloud print requests. 116 * @param {string} authType type of access token. 117 */ 118 startGetAccessToken: function(authType) { 119 chrome.send('getAccessToken', [authType]); 120 }, 121 122 /** Gets the initial settings to initialize the print preview with. */ 123 startGetInitialSettings: function() { 124 chrome.send('getInitialSettings'); 125 }, 126 127 /** 128 * Requests the system's local print destinations. A LOCAL_DESTINATIONS_SET 129 * event will be dispatched in response. 130 */ 131 startGetLocalDestinations: function() { 132 chrome.send('getPrinters'); 133 }, 134 135 /** 136 * Requests the network's privet print destinations. A number of 137 * PRIVET_PRINTER_CHANGED events will be fired in response, followed by a 138 * PRIVET_SEARCH_ENDED. 139 */ 140 startGetPrivetDestinations: function() { 141 chrome.send('getPrivetPrinters'); 142 }, 143 144 /** 145 * Requests that the privet print stack stop searching for privet print 146 * destinations. 147 */ 148 stopGetPrivetDestinations: function() { 149 chrome.send('stopGetPrivetPrinters'); 150 }, 151 152 /** 153 * Requests the privet destination's printing capabilities. A 154 * PRIVET_CAPABILITIES_SET event will be dispatched in response. 155 * @param {string} destinationId ID of the destination. 156 */ 157 startGetPrivetDestinationCapabilities: function(destinationId) { 158 chrome.send('getPrivetPrinterCapabilities', [destinationId]); 159 }, 160 161 /** 162 * Requests the destination's printing capabilities. A CAPABILITIES_SET 163 * event will be dispatched in response. 164 * @param {string} destinationId ID of the destination. 165 */ 166 startGetLocalDestinationCapabilities: function(destinationId) { 167 chrome.send('getPrinterCapabilities', [destinationId]); 168 }, 169 170 /** 171 * @param {!print_preview.Destination} destination Destination to print to. 172 * @param {!print_preview.ticket_items.Color} color Color ticket item. 173 * @return {number} Native layer color model. 174 * @private 175 */ 176 getNativeColorModel_: function(destination, color) { 177 // For non-local printers native color model is ignored anyway. 178 var option = destination.isLocal ? color.getSelectedOption() : null; 179 var nativeColorModel = parseInt(option ? option.vendor_id : null); 180 if (isNaN(nativeColorModel)) { 181 return color.getValue() ? 182 NativeLayer.ColorMode_.COLOR : NativeLayer.ColorMode_.GRAY; 183 } 184 return nativeColorModel; 185 }, 186 187 /** 188 * Requests that a preview be generated. The following events may be 189 * dispatched in response: 190 * - PAGE_COUNT_READY 191 * - PAGE_LAYOUT_READY 192 * - PAGE_PREVIEW_READY 193 * - PREVIEW_GENERATION_DONE 194 * - PREVIEW_GENERATION_FAIL 195 * @param {print_preview.Destination} destination Destination to print to. 196 * @param {!print_preview.PrintTicketStore} printTicketStore Used to get the 197 * state of the print ticket. 198 * @param {!print_preview.DocumentInfo} documentInfo Document data model. 199 * @param {number} ID of the preview request. 200 */ 201 startGetPreview: function( 202 destination, printTicketStore, documentInfo, requestId) { 203 assert(printTicketStore.isTicketValidForPreview(), 204 'Trying to generate preview when ticket is not valid'); 205 206 var ticket = { 207 'pageRange': printTicketStore.pageRange.getDocumentPageRanges(), 208 'mediaSize': printTicketStore.mediaSize.getValue(), 209 'landscape': printTicketStore.landscape.getValue(), 210 'color': this.getNativeColorModel_(destination, printTicketStore.color), 211 'headerFooterEnabled': printTicketStore.headerFooter.getValue(), 212 'marginsType': printTicketStore.marginsType.getValue(), 213 'isFirstRequest': requestId == 0, 214 'requestID': requestId, 215 'previewModifiable': documentInfo.isModifiable, 216 'printToPDF': 217 destination != null && 218 destination.id == 219 print_preview.Destination.GooglePromotedId.SAVE_AS_PDF, 220 'printWithCloudPrint': destination != null && !destination.isLocal, 221 'printWithPrivet': destination != null && destination.isPrivet, 222 'deviceName': destination == null ? 'foo' : destination.id, 223 'generateDraftData': documentInfo.isModifiable, 224 'fitToPageEnabled': printTicketStore.fitToPage.getValue(), 225 226 // NOTE: Even though the following fields don't directly relate to the 227 // preview, they still need to be included. 228 'duplex': printTicketStore.duplex.getValue() ? 229 NativeLayer.DuplexMode.LONG_EDGE : NativeLayer.DuplexMode.SIMPLEX, 230 'copies': printTicketStore.copies.getValueAsNumber(), 231 'collate': printTicketStore.collate.getValue(), 232 'shouldPrintBackgrounds': printTicketStore.cssBackground.getValue(), 233 'shouldPrintSelectionOnly': printTicketStore.selectionOnly.getValue() 234 }; 235 236 // Set 'cloudPrintID' only if the destination is not local. 237 if (destination && !destination.isLocal) { 238 ticket['cloudPrintID'] = destination.id; 239 } 240 241 if (printTicketStore.marginsType.isCapabilityAvailable() && 242 printTicketStore.marginsType.getValue() == 243 print_preview.ticket_items.MarginsType.Value.CUSTOM) { 244 var customMargins = printTicketStore.customMargins.getValue(); 245 var orientationEnum = 246 print_preview.ticket_items.CustomMargins.Orientation; 247 ticket['marginsCustom'] = { 248 'marginTop': customMargins.get(orientationEnum.TOP), 249 'marginRight': customMargins.get(orientationEnum.RIGHT), 250 'marginBottom': customMargins.get(orientationEnum.BOTTOM), 251 'marginLeft': customMargins.get(orientationEnum.LEFT) 252 }; 253 } 254 255 chrome.send( 256 'getPreview', 257 [JSON.stringify(ticket), 258 requestId > 0 ? documentInfo.pageCount : -1, 259 documentInfo.isModifiable]); 260 }, 261 262 /** 263 * Requests that the document be printed. 264 * @param {!print_preview.Destination} destination Destination to print to. 265 * @param {!print_preview.PrintTicketStore} printTicketStore Used to get the 266 * state of the print ticket. 267 * @param {print_preview.CloudPrintInterface} cloudPrintInterface Interface 268 * to Google Cloud Print. 269 * @param {!print_preview.DocumentInfo} documentInfo Document data model. 270 * @param {boolean=} opt_isOpenPdfInPreview Whether to open the PDF in the 271 * system's preview application. 272 */ 273 startPrint: function(destination, printTicketStore, cloudPrintInterface, 274 documentInfo, opt_isOpenPdfInPreview) { 275 assert(printTicketStore.isTicketValid(), 276 'Trying to print when ticket is not valid'); 277 278 var ticket = { 279 'pageRange': printTicketStore.pageRange.getDocumentPageRanges(), 280 'mediaSize': printTicketStore.mediaSize.getValue(), 281 'pageCount': printTicketStore.pageRange.getPageNumberSet().size, 282 'landscape': printTicketStore.landscape.getValue(), 283 'color': this.getNativeColorModel_(destination, printTicketStore.color), 284 'headerFooterEnabled': printTicketStore.headerFooter.getValue(), 285 'marginsType': printTicketStore.marginsType.getValue(), 286 'generateDraftData': true, // TODO(rltoscano): What should this be? 287 'duplex': printTicketStore.duplex.getValue() ? 288 NativeLayer.DuplexMode.LONG_EDGE : NativeLayer.DuplexMode.SIMPLEX, 289 'copies': printTicketStore.copies.getValueAsNumber(), 290 'collate': printTicketStore.collate.getValue(), 291 'shouldPrintBackgrounds': printTicketStore.cssBackground.getValue(), 292 'shouldPrintSelectionOnly': printTicketStore.selectionOnly.getValue(), 293 'previewModifiable': documentInfo.isModifiable, 294 'printToPDF': destination.id == 295 print_preview.Destination.GooglePromotedId.SAVE_AS_PDF, 296 'printWithCloudPrint': !destination.isLocal, 297 'printWithPrivet': destination.isPrivet, 298 'deviceName': destination.id, 299 'isFirstRequest': false, 300 'requestID': -1, 301 'fitToPageEnabled': printTicketStore.fitToPage.getValue(), 302 'pageWidth': documentInfo.pageSize.width, 303 'pageHeight': documentInfo.pageSize.height 304 }; 305 306 if (!destination.isLocal) { 307 // We can't set cloudPrintID if the destination is "Print with Cloud 308 // Print" because the native system will try to print to Google Cloud 309 // Print with this ID instead of opening a Google Cloud Print dialog. 310 ticket['cloudPrintID'] = destination.id; 311 } 312 313 if (printTicketStore.marginsType.isCapabilityAvailable() && 314 printTicketStore.marginsType.isValueEqual( 315 print_preview.ticket_items.MarginsType.Value.CUSTOM)) { 316 var customMargins = printTicketStore.customMargins.getValue(); 317 var orientationEnum = 318 print_preview.ticket_items.CustomMargins.Orientation; 319 ticket['marginsCustom'] = { 320 'marginTop': customMargins.get(orientationEnum.TOP), 321 'marginRight': customMargins.get(orientationEnum.RIGHT), 322 'marginBottom': customMargins.get(orientationEnum.BOTTOM), 323 'marginLeft': customMargins.get(orientationEnum.LEFT) 324 }; 325 } 326 327 if (destination.isPrivet) { 328 ticket['ticket'] = printTicketStore.createPrintTicket(destination); 329 ticket['capabilities'] = JSON.stringify(destination.capabilities); 330 } 331 332 if (opt_isOpenPdfInPreview) { 333 ticket['OpenPDFInPreview'] = true; 334 } 335 336 chrome.send('print', [JSON.stringify(ticket)]); 337 }, 338 339 /** Requests that the current pending print request be cancelled. */ 340 startCancelPendingPrint: function() { 341 chrome.send('cancelPendingPrintRequest'); 342 }, 343 344 /** Shows the system's native printing dialog. */ 345 startShowSystemDialog: function() { 346 chrome.send('showSystemDialog'); 347 }, 348 349 /** Shows Google Cloud Print's web-based print dialog. 350 * @param {number} pageCount Number of pages to print. 351 */ 352 startShowCloudPrintDialog: function(pageCount) { 353 chrome.send('printWithCloudPrintDialog', [pageCount]); 354 }, 355 356 /** Closes the print preview dialog. */ 357 startCloseDialog: function() { 358 chrome.send('closePrintPreviewDialog'); 359 chrome.send('dialogClose'); 360 }, 361 362 /** Hide the print preview dialog and allow the native layer to close it. */ 363 startHideDialog: function() { 364 chrome.send('hidePreview'); 365 }, 366 367 /** 368 * Opens the Google Cloud Print sign-in tab. The DESTINATIONS_RELOAD event 369 * will be dispatched in response. 370 * @param {boolean} addAccount Whether to open an 'add a new account' or 371 * default sign in page. 372 */ 373 startCloudPrintSignIn: function(addAccount) { 374 chrome.send('signIn', [addAccount]); 375 }, 376 377 /** Navigates the user to the system printer settings interface. */ 378 startManageLocalDestinations: function() { 379 chrome.send('manageLocalPrinters'); 380 }, 381 382 /** Navigates the user to the Google Cloud Print management page. */ 383 startManageCloudDestinations: function() { 384 chrome.send('manageCloudPrinters'); 385 }, 386 387 /** Forces browser to open a new tab with the given URL address. */ 388 startForceOpenNewTab: function(url) { 389 chrome.send('forceOpenNewTab', [url]); 390 }, 391 392 /** 393 * @param {!Object} initialSettings Object containing all initial settings. 394 */ 395 onSetInitialSettings_: function(initialSettings) { 396 var numberFormatSymbols = 397 print_preview.MeasurementSystem.parseNumberFormat( 398 initialSettings['numberFormat']); 399 var unitType = print_preview.MeasurementSystem.UnitType.IMPERIAL; 400 if (initialSettings['measurementSystem'] != null) { 401 unitType = initialSettings['measurementSystem']; 402 } 403 404 var nativeInitialSettings = new print_preview.NativeInitialSettings( 405 initialSettings['printAutomaticallyInKioskMode'] || false, 406 initialSettings['hidePrintWithSystemDialogLink'] || false, 407 numberFormatSymbols[0] || ',', 408 numberFormatSymbols[1] || '.', 409 unitType, 410 initialSettings['previewModifiable'] || false, 411 initialSettings['initiatorTitle'] || '', 412 initialSettings['documentHasSelection'] || false, 413 initialSettings['shouldPrintSelectionOnly'] || false, 414 initialSettings['printerName'] || null, 415 initialSettings['appState'] || null); 416 417 var initialSettingsSetEvent = new Event( 418 NativeLayer.EventType.INITIAL_SETTINGS_SET); 419 initialSettingsSetEvent.initialSettings = nativeInitialSettings; 420 this.dispatchEvent(initialSettingsSetEvent); 421 }, 422 423 /** 424 * Turn on the integration of Cloud Print. 425 * @param {string} cloudPrintURL The URL to use for cloud print servers. 426 * @private 427 */ 428 onSetUseCloudPrint_: function(cloudPrintURL) { 429 var cloudPrintEnableEvent = new Event( 430 NativeLayer.EventType.CLOUD_PRINT_ENABLE); 431 cloudPrintEnableEvent.baseCloudPrintUrl = cloudPrintURL; 432 this.dispatchEvent(cloudPrintEnableEvent); 433 }, 434 435 /** 436 * Updates the print preview with local printers. 437 * Called from PrintPreviewHandler::SetupPrinterList(). 438 * @param {Array} printers Array of printer info objects. 439 * @private 440 */ 441 onSetPrinters_: function(printers) { 442 var localDestsSetEvent = new Event( 443 NativeLayer.EventType.LOCAL_DESTINATIONS_SET); 444 localDestsSetEvent.destinationInfos = printers; 445 this.dispatchEvent(localDestsSetEvent); 446 }, 447 448 /** 449 * Called when native layer gets settings information for a requested local 450 * destination. 451 * @param {Object} settingsInfo printer setting information. 452 * @private 453 */ 454 onUpdateWithPrinterCapabilities_: function(settingsInfo) { 455 var capsSetEvent = new Event(NativeLayer.EventType.CAPABILITIES_SET); 456 capsSetEvent.settingsInfo = settingsInfo; 457 this.dispatchEvent(capsSetEvent); 458 }, 459 460 /** 461 * Called when native layer gets settings information for a requested local 462 * destination. 463 * @param {string} printerId printer affected by error. 464 * @private 465 */ 466 onFailedToGetPrinterCapabilities_: function(destinationId) { 467 var getCapsFailEvent = new Event( 468 NativeLayer.EventType.GET_CAPABILITIES_FAIL); 469 getCapsFailEvent.destinationId = destinationId; 470 getCapsFailEvent.destinationOrigin = 471 print_preview.Destination.Origin.LOCAL; 472 this.dispatchEvent(getCapsFailEvent); 473 }, 474 475 /** 476 * Called when native layer gets settings information for a requested privet 477 * destination. 478 * @param {string} printerId printer affected by error. 479 * @private 480 */ 481 onFailedToGetPrivetPrinterCapabilities_: function(destinationId) { 482 var getCapsFailEvent = new Event( 483 NativeLayer.EventType.GET_CAPABILITIES_FAIL); 484 getCapsFailEvent.destinationId = destinationId; 485 getCapsFailEvent.destinationOrigin = 486 print_preview.Destination.Origin.PRIVET; 487 this.dispatchEvent(getCapsFailEvent); 488 }, 489 490 /** Reloads the printer list. */ 491 onReloadPrintersList_: function() { 492 cr.dispatchSimpleEvent(this, NativeLayer.EventType.DESTINATIONS_RELOAD); 493 }, 494 495 /** 496 * Called from the C++ layer. 497 * Take the PDF data handed to us and submit it to the cloud, closing the 498 * print preview dialog once the upload is successful. 499 * @param {string} data Data to send as the print job. 500 * @private 501 */ 502 onPrintToCloud_: function(data) { 503 var printToCloudEvent = new Event( 504 NativeLayer.EventType.PRINT_TO_CLOUD); 505 printToCloudEvent.data = data; 506 this.dispatchEvent(printToCloudEvent); 507 }, 508 509 /** 510 * Called from PrintPreviewUI::OnFileSelectionCancelled to notify the print 511 * preview dialog regarding the file selection cancel event. 512 * @private 513 */ 514 onFileSelectionCancelled_: function() { 515 cr.dispatchSimpleEvent(this, NativeLayer.EventType.FILE_SELECTION_CANCEL); 516 }, 517 518 /** 519 * Called from PrintPreviewUI::OnFileSelectionCompleted to notify the print 520 * preview dialog regarding the file selection completed event. 521 * @private 522 */ 523 onFileSelectionCompleted_: function() { 524 // If the file selection is completed and the dialog is not already closed 525 // it means that a pending print to pdf request exists. 526 cr.dispatchSimpleEvent( 527 this, NativeLayer.EventType.FILE_SELECTION_COMPLETE); 528 }, 529 530 /** 531 * Display an error message when print preview fails. 532 * Called from PrintPreviewMessageHandler::OnPrintPreviewFailed(). 533 * @private 534 */ 535 onPrintPreviewFailed_: function() { 536 cr.dispatchSimpleEvent( 537 this, NativeLayer.EventType.PREVIEW_GENERATION_FAIL); 538 }, 539 540 /** 541 * Display an error message when encountered invalid printer settings. 542 * Called from PrintPreviewMessageHandler::OnInvalidPrinterSettings(). 543 * @private 544 */ 545 onInvalidPrinterSettings_: function() { 546 cr.dispatchSimpleEvent(this, NativeLayer.EventType.SETTINGS_INVALID); 547 }, 548 549 /** 550 * @param {{contentWidth: number, contentHeight: number, marginLeft: number, 551 * marginRight: number, marginTop: number, marginBottom: number, 552 * printableAreaX: number, printableAreaY: number, 553 * printableAreaWidth: number, printableAreaHeight: number}} 554 * pageLayout Specifies default page layout details in points. 555 * @param {boolean} hasCustomPageSizeStyle Indicates whether the previewed 556 * document has a custom page size style. 557 * @private 558 */ 559 onDidGetDefaultPageLayout_: function(pageLayout, hasCustomPageSizeStyle) { 560 var pageLayoutChangeEvent = new Event( 561 NativeLayer.EventType.PAGE_LAYOUT_READY); 562 pageLayoutChangeEvent.pageLayout = pageLayout; 563 pageLayoutChangeEvent.hasCustomPageSizeStyle = hasCustomPageSizeStyle; 564 this.dispatchEvent(pageLayoutChangeEvent); 565 }, 566 567 /** 568 * Update the page count and check the page range. 569 * Called from PrintPreviewUI::OnDidGetPreviewPageCount(). 570 * @param {number} pageCount The number of pages. 571 * @param {number} previewResponseId The preview request id that resulted in 572 * this response. 573 * @private 574 */ 575 onDidGetPreviewPageCount_: function(pageCount, previewResponseId) { 576 var pageCountChangeEvent = new Event( 577 NativeLayer.EventType.PAGE_COUNT_READY); 578 pageCountChangeEvent.pageCount = pageCount; 579 pageCountChangeEvent.previewResponseId = previewResponseId; 580 this.dispatchEvent(pageCountChangeEvent); 581 }, 582 583 /** 584 * Notification that a print preview page has been rendered. 585 * Check if the settings have changed and request a regeneration if needed. 586 * Called from PrintPreviewUI::OnDidPreviewPage(). 587 * @param {number} pageNumber The page number, 0-based. 588 * @param {number} previewUid Preview unique identifier. 589 * @param {number} previewResponseId The preview request id that resulted in 590 * this response. 591 * @private 592 */ 593 onDidPreviewPage_: function(pageNumber, previewUid, previewResponseId) { 594 var pagePreviewGenEvent = new Event( 595 NativeLayer.EventType.PAGE_PREVIEW_READY); 596 pagePreviewGenEvent.pageIndex = pageNumber; 597 pagePreviewGenEvent.previewUid = previewUid; 598 pagePreviewGenEvent.previewResponseId = previewResponseId; 599 this.dispatchEvent(pagePreviewGenEvent); 600 }, 601 602 /** 603 * Notification that access token is ready. 604 * @param {string} authType Type of access token. 605 * @param {string} accessToken Access token. 606 * @private 607 */ 608 onDidGetAccessToken_: function(authType, accessToken) { 609 var getAccessTokenEvent = new Event( 610 NativeLayer.EventType.ACCESS_TOKEN_READY); 611 getAccessTokenEvent.authType = authType; 612 getAccessTokenEvent.accessToken = accessToken; 613 this.dispatchEvent(getAccessTokenEvent); 614 }, 615 616 /** 617 * Update the print preview when new preview data is available. 618 * Create the PDF plugin as needed. 619 * Called from PrintPreviewUI::PreviewDataIsAvailable(). 620 * @param {number} previewUid Preview unique identifier. 621 * @param {number} previewResponseId The preview request id that resulted in 622 * this response. 623 * @private 624 */ 625 onUpdatePrintPreview_: function(previewUid, previewResponseId) { 626 var previewGenDoneEvent = new Event( 627 NativeLayer.EventType.PREVIEW_GENERATION_DONE); 628 previewGenDoneEvent.previewUid = previewUid; 629 previewGenDoneEvent.previewResponseId = previewResponseId; 630 this.dispatchEvent(previewGenDoneEvent); 631 }, 632 633 /** 634 * Updates the fit to page option state based on the print scaling option of 635 * source pdf. PDF's have an option to enable/disable print scaling. When we 636 * find out that the print scaling option is disabled for the source pdf, we 637 * uncheck the fitToPage_ to page checkbox. This function is called from C++ 638 * code. 639 * @private 640 */ 641 onPrintScalingDisabledForSourcePDF_: function() { 642 cr.dispatchSimpleEvent(this, NativeLayer.EventType.DISABLE_SCALING); 643 }, 644 645 /** 646 * Simulates a user click on the print preview dialog cancel button. Used 647 * only for testing. 648 * @private 649 */ 650 autoCancelForTesting_: function() { 651 var properties = {view: window, bubbles: true, cancelable: true}; 652 var click = new MouseEvent('click', properties); 653 document.querySelector('#print-header .cancel').dispatchEvent(click); 654 }, 655 656 /** 657 * @param {{serviceName: string, name: string}} printer Specifies 658 * information about the printer that was added. 659 * @private 660 */ 661 onPrivetPrinterChanged_: function(printer) { 662 var privetPrinterChangedEvent = 663 new Event(NativeLayer.EventType.PRIVET_PRINTER_CHANGED); 664 privetPrinterChangedEvent.printer = printer; 665 this.dispatchEvent(privetPrinterChangedEvent); 666 }, 667 668 /** 669 * @param {Object} printer Specifies information about the printer that was 670 * added. 671 * @private 672 */ 673 onPrivetCapabilitiesSet_: function(printer, capabilities) { 674 var privetCapabilitiesSetEvent = 675 new Event(NativeLayer.EventType.PRIVET_CAPABILITIES_SET); 676 privetCapabilitiesSetEvent.printer = printer; 677 privetCapabilitiesSetEvent.capabilities = capabilities; 678 this.dispatchEvent(privetCapabilitiesSetEvent); 679 }, 680 681 /** 682 * @param {string} http_error The HTTP response code or -1 if not an HTTP 683 * error. 684 * @private 685 */ 686 onPrivetPrintFailed_: function(http_error) { 687 var privetPrintFailedEvent = 688 new Event(NativeLayer.EventType.PRIVET_PRINT_FAILED); 689 privetPrintFailedEvent.httpError = http_error; 690 this.dispatchEvent(privetPrintFailedEvent); 691 } 692 }; 693 694 /** 695 * Initial settings retrieved from the native layer. 696 * @param {boolean} isInKioskAutoPrintMode Whether the print preview should be 697 * in auto-print mode. 698 * @param {string} thousandsDelimeter Character delimeter of thousands digits. 699 * @param {string} decimalDelimeter Character delimeter of the decimal point. 700 * @param {!print_preview.MeasurementSystem.UnitType} unitType Unit type of 701 * local machine's measurement system. 702 * @param {boolean} isDocumentModifiable Whether the document to print is 703 * modifiable. 704 * @param {string} documentTitle Title of the document. 705 * @param {boolean} documentHasSelection Whether the document has selected 706 * content. 707 * @param {boolean} selectionOnly Whether only selected content should be 708 * printed. 709 * @param {?string} systemDefaultDestinationId ID of the system default 710 * destination. 711 * @param {?string} serializedAppStateStr Serialized app state. 712 * @constructor 713 */ 714 function NativeInitialSettings( 715 isInKioskAutoPrintMode, 716 hidePrintWithSystemDialogLink, 717 thousandsDelimeter, 718 decimalDelimeter, 719 unitType, 720 isDocumentModifiable, 721 documentTitle, 722 documentHasSelection, 723 selectionOnly, 724 systemDefaultDestinationId, 725 serializedAppStateStr) { 726 727 /** 728 * Whether the print preview should be in auto-print mode. 729 * @type {boolean} 730 * @private 731 */ 732 this.isInKioskAutoPrintMode_ = isInKioskAutoPrintMode; 733 734 /** 735 * Whether we should hide the link which shows the system print dialog. 736 * @type {boolean} 737 * @private 738 */ 739 this.hidePrintWithSystemDialogLink_ = hidePrintWithSystemDialogLink; 740 741 /** 742 * Character delimeter of thousands digits. 743 * @type {string} 744 * @private 745 */ 746 this.thousandsDelimeter_ = thousandsDelimeter; 747 748 /** 749 * Character delimeter of the decimal point. 750 * @type {string} 751 * @private 752 */ 753 this.decimalDelimeter_ = decimalDelimeter; 754 755 /** 756 * Unit type of local machine's measurement system. 757 * @type {string} 758 * @private 759 */ 760 this.unitType_ = unitType; 761 762 /** 763 * Whether the document to print is modifiable. 764 * @type {boolean} 765 * @private 766 */ 767 this.isDocumentModifiable_ = isDocumentModifiable; 768 769 /** 770 * Title of the document. 771 * @type {string} 772 * @private 773 */ 774 this.documentTitle_ = documentTitle; 775 776 /** 777 * Whether the document has selection. 778 * @type {string} 779 * @private 780 */ 781 this.documentHasSelection_ = documentHasSelection; 782 783 /** 784 * Whether selection only should be printed. 785 * @type {string} 786 * @private 787 */ 788 this.selectionOnly_ = selectionOnly; 789 790 /** 791 * ID of the system default destination. 792 * @type {?string} 793 * @private 794 */ 795 this.systemDefaultDestinationId_ = systemDefaultDestinationId; 796 797 /** 798 * Serialized app state. 799 * @type {?string} 800 * @private 801 */ 802 this.serializedAppStateStr_ = serializedAppStateStr; 803 }; 804 805 NativeInitialSettings.prototype = { 806 /** 807 * @return {boolean} Whether the print preview should be in auto-print mode. 808 */ 809 get isInKioskAutoPrintMode() { 810 return this.isInKioskAutoPrintMode_; 811 }, 812 813 /** 814 * @return {boolean} Whether we should hide the link which shows the 815 system print dialog. 816 */ 817 get hidePrintWithSystemDialogLink() { 818 return this.hidePrintWithSystemDialogLink_; 819 }, 820 821 /** @return {string} Character delimeter of thousands digits. */ 822 get thousandsDelimeter() { 823 return this.thousandsDelimeter_; 824 }, 825 826 /** @return {string} Character delimeter of the decimal point. */ 827 get decimalDelimeter() { 828 return this.decimalDelimeter_; 829 }, 830 831 /** 832 * @return {!print_preview.MeasurementSystem.UnitType} Unit type of local 833 * machine's measurement system. 834 */ 835 get unitType() { 836 return this.unitType_; 837 }, 838 839 /** @return {boolean} Whether the document to print is modifiable. */ 840 get isDocumentModifiable() { 841 return this.isDocumentModifiable_; 842 }, 843 844 /** @return {string} Document title. */ 845 get documentTitle() { 846 return this.documentTitle_; 847 }, 848 849 /** @return {bool} Whether the document has selection. */ 850 get documentHasSelection() { 851 return this.documentHasSelection_; 852 }, 853 854 /** @return {bool} Whether selection only should be printed. */ 855 get selectionOnly() { 856 return this.selectionOnly_; 857 }, 858 859 /** @return {?string} ID of the system default destination. */ 860 get systemDefaultDestinationId() { 861 return this.systemDefaultDestinationId_; 862 }, 863 864 /** @return {?string} Serialized app state. */ 865 get serializedAppStateStr() { 866 return this.serializedAppStateStr_; 867 } 868 }; 869 870 // Export 871 return { 872 NativeInitialSettings: NativeInitialSettings, 873 NativeLayer: NativeLayer 874 }; 875 }); 876
