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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Shim that simulates a <webview> tag via Mutation Observers. | 5 // Shim that simulates a <webview> tag via Mutation Observers. |
6 // | 6 // |
7 // The actual tag is implemented via the browser plugin. The internals of this | 7 // The actual tag is implemented via the browser plugin. The internals of this |
8 // are hidden via Shadow DOM. | 8 // are hidden via Shadow DOM. |
9 | 9 |
10 var addTagWatcher = require('tagWatcher').addTagWatcher; | 10 var addTagWatcher = require('tagWatcher').addTagWatcher; |
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416 ]; | 416 ]; |
417 | 417 |
418 var self = this; | 418 var self = this; |
419 var node = this.webviewNode_; | 419 var node = this.webviewNode_; |
420 var browserPluginNode = this.browserPluginNode_; | 420 var browserPluginNode = this.browserPluginNode_; |
421 | 421 |
422 var onTrackedObjectGone = function(requestId, e) { | 422 var onTrackedObjectGone = function(requestId, e) { |
423 var detail = e.detail ? JSON.parse(e.detail) : {}; | 423 var detail = e.detail ? JSON.parse(e.detail) : {}; |
424 if (detail.id != requestId) | 424 if (detail.id != requestId) |
425 return; | 425 return; |
426 browserPluginNode['-internal-setPermission'](requestId, false); | 426 browserPluginNode['-internal-setPermission'](requestId, false, ''); |
427 } | 427 } |
428 | 428 |
429 browserPluginNode.addEventListener('-internal-newwindow', function(e) { | 429 browserPluginNode.addEventListener('-internal-newwindow', function(e) { |
430 var evt = new Event('newwindow', { bubbles: true, cancelable: true }); | 430 var evt = new Event('newwindow', { bubbles: true, cancelable: true }); |
431 var detail = e.detail ? JSON.parse(e.detail) : {}; | 431 var detail = e.detail ? JSON.parse(e.detail) : {}; |
432 | 432 |
433 $Array.forEach(NEW_WINDOW_EVENT_ATTRIBUTES, function(attribName) { | 433 $Array.forEach(NEW_WINDOW_EVENT_ATTRIBUTES, function(attribName) { |
434 evt[attribName] = detail[attribName]; | 434 evt[attribName] = detail[attribName]; |
435 }); | 435 }); |
436 var requestId = detail.requestId; | 436 var requestId = detail.requestId; |
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456 var attached = | 456 var attached = |
457 browserPluginNode['-internal-attachWindowTo'](webview, | 457 browserPluginNode['-internal-attachWindowTo'](webview, |
458 detail.windowId); | 458 detail.windowId); |
459 if (!attached) { | 459 if (!attached) { |
460 console.error(ERROR_MSG_NEWWINDOW_UNABLE_TO_ATTACH); | 460 console.error(ERROR_MSG_NEWWINDOW_UNABLE_TO_ATTACH); |
461 } | 461 } |
462 // If the object being passed into attach is not a valid <webview> | 462 // If the object being passed into attach is not a valid <webview> |
463 // then we will fail and it will be treated as if the new window | 463 // then we will fail and it will be treated as if the new window |
464 // was rejected. The permission API plumbing is used here to clean | 464 // was rejected. The permission API plumbing is used here to clean |
465 // up the state created for the new window if attaching fails. | 465 // up the state created for the new window if attaching fails. |
466 browserPluginNode['-internal-setPermission'](requestId, attached); | 466 browserPluginNode['-internal-setPermission'](requestId, attached, ''); |
467 }, 0); | 467 }, 0); |
468 }, | 468 }, |
469 discard: function() { | 469 discard: function() { |
470 validateCall(); | 470 validateCall(); |
471 browserPluginNode['-internal-setPermission'](requestId, false); | 471 browserPluginNode['-internal-setPermission'](requestId, false, ''); |
472 } | 472 } |
473 }; | 473 }; |
474 evt.window = window; | 474 evt.window = window; |
475 // Make browser plugin track lifetime of |window|. | 475 // Make browser plugin track lifetime of |window|. |
476 var onTrackedObjectGoneWithRequestId = | 476 var onTrackedObjectGoneWithRequestId = |
477 $Function.bind(onTrackedObjectGone, self, requestId); | 477 $Function.bind(onTrackedObjectGone, self, requestId); |
478 browserPluginNode.addEventListener('-internal-trackedobjectgone', | 478 browserPluginNode.addEventListener('-internal-trackedobjectgone', |
479 onTrackedObjectGoneWithRequestId); | 479 onTrackedObjectGoneWithRequestId); |
480 browserPluginNode['-internal-trackObjectLifetime'](window, requestId); | 480 browserPluginNode['-internal-trackObjectLifetime'](window, requestId); |
481 | 481 |
482 var defaultPrevented = !node.dispatchEvent(evt); | 482 var defaultPrevented = !node.dispatchEvent(evt); |
483 if (!actionTaken && !defaultPrevented) { | 483 if (!actionTaken && !defaultPrevented) { |
484 actionTaken = true; | 484 actionTaken = true; |
485 // The default action is to discard the window. | 485 // The default action is to discard the window. |
486 browserPluginNode['-internal-setPermission'](requestId, false); | 486 browserPluginNode['-internal-setPermission'](requestId, false, ''); |
487 console.warn(WARNING_MSG_NEWWINDOW_BLOCKED); | 487 console.warn(WARNING_MSG_NEWWINDOW_BLOCKED); |
488 } | 488 } |
489 }); | 489 }); |
490 }; | 490 }; |
491 | 491 |
492 /** | 492 /** |
493 * @private | 493 * @private |
494 */ | 494 */ |
495 WebView.prototype.setupExecuteCodeAPI_ = function() { | 495 WebView.prototype.setupExecuteCodeAPI_ = function() { |
496 var ERROR_MSG_CANNOT_INJECT_SCRIPT = '<webview>: ' + | 496 var ERROR_MSG_CANNOT_INJECT_SCRIPT = '<webview>: ' + |
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545 | 545 |
546 var self = this; | 546 var self = this; |
547 var node = this.webviewNode_; | 547 var node = this.webviewNode_; |
548 var browserPluginNode = this.browserPluginNode_; | 548 var browserPluginNode = this.browserPluginNode_; |
549 var internalevent = '-internal-permissionrequest'; | 549 var internalevent = '-internal-permissionrequest'; |
550 | 550 |
551 var onTrackedObjectGone = function(requestId, e) { | 551 var onTrackedObjectGone = function(requestId, e) { |
552 var detail = e.detail ? JSON.parse(e.detail) : {}; | 552 var detail = e.detail ? JSON.parse(e.detail) : {}; |
553 if (detail.id != requestId) | 553 if (detail.id != requestId) |
554 return; | 554 return; |
555 browserPluginNode['-internal-setPermission'](requestId, false); | 555 browserPluginNode['-internal-setPermission'](requestId, false, ''); |
556 } | 556 } |
557 | 557 |
558 browserPluginNode.addEventListener(internalevent, function(e) { | 558 browserPluginNode.addEventListener(internalevent, function(e) { |
559 var evt = new Event('permissionrequest', {bubbles: true, cancelable: true}); | 559 var evt = new Event('permissionrequest', {bubbles: true, cancelable: true}); |
560 var detail = e.detail ? JSON.parse(e.detail) : {}; | 560 var detail = e.detail ? JSON.parse(e.detail) : {}; |
561 $Array.forEach(EXPOSED_PERMISSION_EVENT_ATTRIBS, function(attribName) { | 561 $Array.forEach(EXPOSED_PERMISSION_EVENT_ATTRIBS, function(attribName) { |
562 if (detail[attribName] !== undefined) | 562 if (detail[attribName] !== undefined) |
563 evt[attribName] = detail[attribName]; | 563 evt[attribName] = detail[attribName]; |
564 }); | 564 }); |
565 var requestId = detail.requestId; | 565 var requestId = detail.requestId; |
566 | 566 |
567 if (detail.requestId !== undefined && | 567 if (detail.requestId !== undefined && |
568 PERMISSION_TYPES.indexOf(detail.permission) >= 0) { | 568 PERMISSION_TYPES.indexOf(detail.permission) >= 0) { |
569 // TODO(lazyboy): Also fill in evt.details (see webview specs). | 569 // TODO(lazyboy): Also fill in evt.details (see webview specs). |
570 // http://crbug.com/141197. | 570 // http://crbug.com/141197. |
571 var decisionMade = false; | 571 var decisionMade = false; |
572 // Construct the event.request object. | 572 // Construct the event.request object. |
573 var request = { | 573 var request = { |
574 allow: function() { | 574 allow: function() { |
575 if (decisionMade) { | 575 if (decisionMade) { |
576 throw new Error(ERROR_MSG_PERMISSION_ALREADY_DECIDED); | 576 throw new Error(ERROR_MSG_PERMISSION_ALREADY_DECIDED); |
577 } else { | 577 } else { |
578 browserPluginNode['-internal-setPermission'](requestId, true); | 578 browserPluginNode['-internal-setPermission'](requestId, true, ''); |
579 decisionMade = true; | 579 decisionMade = true; |
580 } | 580 } |
581 }, | 581 }, |
582 deny: function() { | 582 deny: function() { |
583 if (decisionMade) { | 583 if (decisionMade) { |
584 throw new Error(ERROR_MSG_PERMISSION_ALREADY_DECIDED); | 584 throw new Error(ERROR_MSG_PERMISSION_ALREADY_DECIDED); |
585 } else { | 585 } else { |
586 browserPluginNode['-internal-setPermission'](requestId, false); | 586 browserPluginNode['-internal-setPermission'](requestId, false, ''); |
587 decisionMade = true; | 587 decisionMade = true; |
588 } | 588 } |
589 } | 589 } |
590 }; | 590 }; |
591 evt.request = request; | 591 evt.request = request; |
592 | 592 |
593 // Make browser plugin track lifetime of |request|. | 593 // Make browser plugin track lifetime of |request|. |
594 var onTrackedObjectGoneWithRequestId = | 594 var onTrackedObjectGoneWithRequestId = |
595 $Function.bind(onTrackedObjectGone, self, requestId); | 595 $Function.bind(onTrackedObjectGone, self, requestId); |
596 browserPluginNode.addEventListener('-internal-trackedobjectgone', | 596 browserPluginNode.addEventListener('-internal-trackedobjectgone', |
597 onTrackedObjectGoneWithRequestId); | 597 onTrackedObjectGoneWithRequestId); |
598 browserPluginNode['-internal-trackObjectLifetime'](request, requestId); | 598 browserPluginNode['-internal-trackObjectLifetime'](request, requestId); |
599 | 599 |
600 var defaultPrevented = !node.dispatchEvent(evt); | 600 var defaultPrevented = !node.dispatchEvent(evt); |
601 if (!decisionMade && !defaultPrevented) { | 601 if (!decisionMade && !defaultPrevented) { |
602 decisionMade = true; | 602 decisionMade = true; |
603 browserPluginNode['-internal-setPermission'](requestId, false); | 603 browserPluginNode['-internal-setPermission'](requestId, false, ''); |
604 } | 604 } |
605 } | 605 } |
606 }); | 606 }); |
607 }; | 607 }; |
608 | 608 |
609 /** | 609 /** |
610 * Implemented when the experimental API is available. | 610 * Implemented when the experimental API is available. |
611 * @private | 611 * @private |
612 */ | 612 */ |
613 WebView.prototype.maybeGetExperimentalPermissionTypes_ = function() { | 613 WebView.prototype.maybeGetExperimentalPermissionTypes_ = function() { |
614 return []; | 614 return []; |
615 }; | 615 }; |
616 | 616 |
617 /** | 617 /** |
618 * Implemented when the experimental API is available. | 618 * Implemented when the experimental API is available. |
619 * @private | 619 * @private |
620 */ | 620 */ |
621 WebView.prototype.maybeSetupExperimentalAPI_ = function() {}; | 621 WebView.prototype.maybeSetupExperimentalAPI_ = function() {}; |
622 | 622 |
623 exports.WebView = WebView; | 623 exports.WebView = WebView; |
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