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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 /** | 5 /** |
6 * @fileoverview The entry point for all ChromeVox2 related code for the | 6 * @fileoverview The entry point for all ChromeVox2 related code for the |
7 * background page. | 7 * background page. |
8 */ | 8 */ |
9 | 9 |
10 goog.provide('Background'); | 10 goog.provide('Background'); |
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31 goog.require('cvox.ChromeVoxEditableTextBase'); | 31 goog.require('cvox.ChromeVoxEditableTextBase'); |
32 goog.require('cvox.ClassicEarcons'); | 32 goog.require('cvox.ClassicEarcons'); |
33 goog.require('cvox.ExtensionBridge'); | 33 goog.require('cvox.ExtensionBridge'); |
34 goog.require('cvox.NavBraille'); | 34 goog.require('cvox.NavBraille'); |
35 | 35 |
36 goog.scope(function() { | 36 goog.scope(function() { |
37 var AutomationNode = chrome.automation.AutomationNode; | 37 var AutomationNode = chrome.automation.AutomationNode; |
38 var Dir = constants.Dir; | 38 var Dir = constants.Dir; |
39 var EventType = chrome.automation.EventType; | 39 var EventType = chrome.automation.EventType; |
40 var RoleType = chrome.automation.RoleType; | 40 var RoleType = chrome.automation.RoleType; |
| 41 var StateType = chrome.automation.StateType; |
41 | 42 |
42 /** | 43 /** |
43 * ChromeVox2 background page. | 44 * ChromeVox2 background page. |
44 * @constructor | 45 * @constructor |
45 * @extends {ChromeVoxState} | 46 * @extends {ChromeVoxState} |
46 */ | 47 */ |
47 Background = function() { | 48 Background = function() { |
48 ChromeVoxState.call(this); | 49 ChromeVoxState.call(this); |
49 | 50 |
50 /** | 51 /** |
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248 if (!target) | 249 if (!target) |
249 return useNext ? ChromeVoxMode.FORCE_NEXT : ChromeVoxMode.CLASSIC; | 250 return useNext ? ChromeVoxMode.FORCE_NEXT : ChromeVoxMode.CLASSIC; |
250 | 251 |
251 // Closure complains, but clearly, |target| is not null. | 252 // Closure complains, but clearly, |target| is not null. |
252 var topLevelRoot = | 253 var topLevelRoot = |
253 AutomationUtil.getTopLevelRoot(/** @type {!AutomationNode} */(target)); | 254 AutomationUtil.getTopLevelRoot(/** @type {!AutomationNode} */(target)); |
254 if (!topLevelRoot) | 255 if (!topLevelRoot) |
255 return useNext ? ChromeVoxMode.FORCE_NEXT : | 256 return useNext ? ChromeVoxMode.FORCE_NEXT : |
256 ChromeVoxMode.CLASSIC_COMPAT; | 257 ChromeVoxMode.CLASSIC_COMPAT; |
257 | 258 |
258 var nextSite = this.isWhitelistedForNext_(topLevelRoot.docUrl); | 259 var docUrl = topLevelRoot.docUrl || ''; |
259 var nextCompat = this.nextCompatRegExp_.test(topLevelRoot.docUrl); | 260 var nextSite = this.isWhitelistedForNext_(docUrl) |
| 261 var nextCompat = this.nextCompatRegExp_.test(docUrl); |
260 var classicCompat = | 262 var classicCompat = |
261 this.isWhitelistedForClassicCompat_(topLevelRoot.docUrl); | 263 this.isWhitelistedForClassicCompat_(docUrl); |
262 if (nextCompat && useNext) | 264 if (nextCompat && useNext) |
263 return ChromeVoxMode.NEXT_COMPAT; | 265 return ChromeVoxMode.NEXT_COMPAT; |
264 else if (classicCompat && !useNext) | 266 else if (classicCompat && !useNext) |
265 return ChromeVoxMode.CLASSIC_COMPAT; | 267 return ChromeVoxMode.CLASSIC_COMPAT; |
266 else if (nextSite) | 268 else if (nextSite) |
267 return ChromeVoxMode.NEXT; | 269 return ChromeVoxMode.NEXT; |
268 else if (!useNext) | 270 else if (!useNext) |
269 return ChromeVoxMode.CLASSIC; | 271 return ChromeVoxMode.CLASSIC; |
270 else | 272 else |
271 return ChromeVoxMode.FORCE_NEXT; | 273 return ChromeVoxMode.FORCE_NEXT; |
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409 if (oldMode != newMode) { | 411 if (oldMode != newMode) { |
410 this.onModeChanged_(newMode, oldMode); | 412 this.onModeChanged_(newMode, oldMode); |
411 this.mode_ = newMode; | 413 this.mode_ = newMode; |
412 } | 414 } |
413 | 415 |
414 if (this.currentRange_) { | 416 if (this.currentRange_) { |
415 var start = this.currentRange_.start.node; | 417 var start = this.currentRange_.start.node; |
416 start.makeVisible(); | 418 start.makeVisible(); |
417 | 419 |
418 var root = start.root; | 420 var root = start.root; |
419 if (!root || root.role == RoleType.desktop) | 421 if (!root || root.role == RoleType.DESKTOP) |
420 return; | 422 return; |
421 | 423 |
422 var position = {}; | 424 var position = {}; |
423 var loc = start.location; | 425 var loc = start.location; |
424 position.x = loc.left + loc.width / 2; | 426 position.x = loc.left + loc.width / 2; |
425 position.y = loc.top + loc.height / 2; | 427 position.y = loc.top + loc.height / 2; |
426 var url = root.docUrl; | 428 var url = root.docUrl; |
427 url = url.substring(0, url.indexOf('#')) || url; | 429 url = url.substring(0, url.indexOf('#')) || url; |
428 cvox.ChromeVox.position[url] = position; | 430 cvox.ChromeVox.position[url] = position; |
429 } | 431 } |
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492 if (this.pageSel_) | 494 if (this.pageSel_) |
493 this.pageSel_.select(); | 495 this.pageSel_.select(); |
494 } | 496 } |
495 } else { | 497 } else { |
496 // Ensure we don't select the editable when we first encounter it. | 498 // Ensure we don't select the editable when we first encounter it. |
497 var lca = null; | 499 var lca = null; |
498 if (range.start.node && prevRange.start.node) { | 500 if (range.start.node && prevRange.start.node) { |
499 lca = AutomationUtil.getLeastCommonAncestor(prevRange.start.node, | 501 lca = AutomationUtil.getLeastCommonAncestor(prevRange.start.node, |
500 range.start.node); | 502 range.start.node); |
501 } | 503 } |
502 if (!lca || lca.state.editable || !range.start.node.state.editable) | 504 if (!lca || lca.state[StateType.EDITABLE] || |
| 505 !range.start.node.state[StateType.EDITABLE]) |
503 range.select(); | 506 range.select(); |
504 } | 507 } |
505 | 508 |
506 o.withRichSpeechAndBraille( | 509 o.withRichSpeechAndBraille( |
507 selectedRange || range, prevRange, Output.EventType.NAVIGATE) | 510 selectedRange || range, prevRange, Output.EventType.NAVIGATE) |
508 .withQueueMode(cvox.QueueMode.FLUSH); | 511 .withQueueMode(cvox.QueueMode.FLUSH); |
509 | 512 |
510 if (msg) | 513 if (msg) |
511 o.format(msg); | 514 o.format(msg); |
512 | 515 |
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586 }, | 589 }, |
587 | 590 |
588 /** | 591 /** |
589 * Compat mode is on if any of the following are true: | 592 * Compat mode is on if any of the following are true: |
590 * 1. a url is blacklisted for Classic. | 593 * 1. a url is blacklisted for Classic. |
591 * 2. the current range is not within web content. | 594 * 2. the current range is not within web content. |
592 * @param {string} url | 595 * @param {string} url |
593 * @return {boolean} | 596 * @return {boolean} |
594 */ | 597 */ |
595 isWhitelistedForClassicCompat_: function(url) { | 598 isWhitelistedForClassicCompat_: function(url) { |
596 return this.isBlacklistedForClassic_(url) || (this.getCurrentRange() && | 599 return (this.isBlacklistedForClassic_(url) || (this.getCurrentRange() && |
597 !this.getCurrentRange().isWebRange() && | 600 !this.getCurrentRange().isWebRange() && |
598 this.getCurrentRange().start.node.state.focused); | 601 this.getCurrentRange().start.node.state[StateType.FOCUSED])) || false; |
599 }, | 602 }, |
600 | 603 |
601 /** | 604 /** |
602 * @param {string} url | 605 * @param {string} url |
603 * @return {boolean} | 606 * @return {boolean} |
604 * @private | 607 * @private |
605 */ | 608 */ |
606 isBlacklistedForClassic_: function(url) { | 609 isBlacklistedForClassic_: function(url) { |
607 if (this.classicBlacklistRegExp_.test(url)) | 610 if (this.classicBlacklistRegExp_.test(url)) |
608 return true; | 611 return true; |
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665 } else if (span instanceof Output.NodeSpan) { | 668 } else if (span instanceof Output.NodeSpan) { |
666 if (!actionNodeSpan || | 669 if (!actionNodeSpan || |
667 text.getSpanLength(span) <= text.getSpanLength(actionNodeSpan)) { | 670 text.getSpanLength(span) <= text.getSpanLength(actionNodeSpan)) { |
668 actionNodeSpan = span; | 671 actionNodeSpan = span; |
669 } | 672 } |
670 } | 673 } |
671 }); | 674 }); |
672 if (!actionNodeSpan) | 675 if (!actionNodeSpan) |
673 return; | 676 return; |
674 var actionNode = actionNodeSpan.node; | 677 var actionNode = actionNodeSpan.node; |
675 if (actionNode.role === RoleType.inlineTextBox) | 678 if (actionNode.role === RoleType.INLINE_TEXT_BOX) |
676 actionNode = actionNode.parent; | 679 actionNode = actionNode.parent; |
677 actionNode.doDefault(); | 680 actionNode.doDefault(); |
678 if (selectionSpan) { | 681 if (selectionSpan) { |
679 var start = text.getSpanStart(selectionSpan); | 682 var start = text.getSpanStart(selectionSpan); |
680 var targetPosition = position - start; | 683 var targetPosition = position - start; |
681 actionNode.setSelection(targetPosition, targetPosition); | 684 actionNode.setSelection(targetPosition, targetPosition); |
682 } | 685 } |
683 }, | 686 }, |
684 | 687 |
685 /** | 688 /** |
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785 setFocusToRange_: function(range, prevRange) { | 788 setFocusToRange_: function(range, prevRange) { |
786 var start = range.start.node; | 789 var start = range.start.node; |
787 var end = range.end.node; | 790 var end = range.end.node; |
788 | 791 |
789 // First, see if we've crossed a root. Remove once webview handles focus | 792 // First, see if we've crossed a root. Remove once webview handles focus |
790 // correctly. | 793 // correctly. |
791 if (prevRange && prevRange.start.node && start) { | 794 if (prevRange && prevRange.start.node && start) { |
792 var entered = AutomationUtil.getUniqueAncestors( | 795 var entered = AutomationUtil.getUniqueAncestors( |
793 prevRange.start.node, start); | 796 prevRange.start.node, start); |
794 var embeddedObject = entered.find(function(f) { | 797 var embeddedObject = entered.find(function(f) { |
795 return f.role == RoleType.embeddedObject; }); | 798 return f.role == RoleType.EMBEDDED_OBJECT; }); |
796 if (embeddedObject && !embeddedObject.state.focused) | 799 if (embeddedObject && !embeddedObject.state[StateType.FOCUSED]) |
797 embeddedObject.focus(); | 800 embeddedObject.focus(); |
798 } | 801 } |
799 | 802 |
800 if (start.state.focused || end.state.focused) | 803 if (start.state[StateType.FOCUSED] || end.state[StateType.FOCUSED]) |
801 return; | 804 return; |
802 | 805 |
803 var isFocusableLinkOrControl = function(node) { | 806 var isFocusableLinkOrControl = function(node) { |
804 return node.state.focusable && | 807 return node.state[StateType.FOCUSABLE] && |
805 AutomationPredicate.linkOrControl(node); | 808 AutomationPredicate.linkOrControl(node); |
806 }; | 809 }; |
807 | 810 |
808 // Next, try to focus the start or end node. | 811 // Next, try to focus the start or end node. |
809 if (!AutomationPredicate.structuralContainer(start) && | 812 if (!AutomationPredicate.structuralContainer(start) && |
810 start.state.focusable) { | 813 start.state[StateType.FOCUSABLE]) { |
811 if (!start.state.focused) | 814 if (!start.state[StateType.FOCUSED]) |
812 start.focus(); | 815 start.focus(); |
813 return; | 816 return; |
814 } else if (!AutomationPredicate.structuralContainer(end) && | 817 } else if (!AutomationPredicate.structuralContainer(end) && |
815 end.state.focusable) { | 818 end.state[StateType.FOCUSABLE]) { |
816 if (!end.state.focused) | 819 if (!end.state[StateType.FOCUSED]) |
817 end.focus(); | 820 end.focus(); |
818 return; | 821 return; |
819 } | 822 } |
820 | 823 |
821 // If a common ancestor of |start| and |end| is a link, focus that. | 824 // If a common ancestor of |start| and |end| is a link, focus that. |
822 var ancestor = AutomationUtil.getLeastCommonAncestor(start, end); | 825 var ancestor = AutomationUtil.getLeastCommonAncestor(start, end); |
823 while (ancestor && ancestor.root == start.root) { | 826 while (ancestor && ancestor.root == start.root) { |
824 if (isFocusableLinkOrControl(ancestor)) { | 827 if (isFocusableLinkOrControl(ancestor)) { |
825 if (!ancestor.state.focused) | 828 if (!ancestor.state[StateType.FOCUSED]) |
826 ancestor.focus(); | 829 ancestor.focus(); |
827 return; | 830 return; |
828 } | 831 } |
829 ancestor = ancestor.parent; | 832 ancestor = ancestor.parent; |
830 } | 833 } |
831 | 834 |
832 // If nothing is focusable, set the sequential focus navigation starting | 835 // If nothing is focusable, set the sequential focus navigation starting |
833 // point, which ensures that the next time you press Tab, you'll reach | 836 // point, which ensures that the next time you press Tab, you'll reach |
834 // the next or previous focusable node from |start|. | 837 // the next or previous focusable node from |start|. |
835 if (!start.state.offscreen) | 838 if (!start.state[StateType.OFFSCREEN]) |
836 start.setSequentialFocusNavigationStartingPoint(); | 839 start.setSequentialFocusNavigationStartingPoint(); |
837 } | 840 } |
838 }; | 841 }; |
839 | 842 |
840 /** | 843 /** |
841 * Converts a list of globs, as used in the extension manifest, to a regular | 844 * Converts a list of globs, as used in the extension manifest, to a regular |
842 * expression that matches if and only if any of the globs in the list matches. | 845 * expression that matches if and only if any of the globs in the list matches. |
843 * @param {!Array<string>} globs | 846 * @param {!Array<string>} globs |
844 * @return {!RegExp} | 847 * @return {!RegExp} |
845 * @private | 848 * @private |
846 */ | 849 */ |
847 Background.globsToRegExp_ = function(globs) { | 850 Background.globsToRegExp_ = function(globs) { |
848 return new RegExp('^(' + globs.map(function(glob) { | 851 return new RegExp('^(' + globs.map(function(glob) { |
849 return glob.replace(/[.+^$(){}|[\]\\]/g, '\\$&') | 852 return glob.replace(/[.+^$(){}|[\]\\]/g, '\\$&') |
850 .replace(/\*/g, '.*') | 853 .replace(/\*/g, '.*') |
851 .replace(/\?/g, '.'); | 854 .replace(/\?/g, '.'); |
852 }).join('|') + ')$'); | 855 }).join('|') + ')$'); |
853 }; | 856 }; |
854 | 857 |
855 new Background(); | 858 new Background(); |
856 | 859 |
857 }); // goog.scope | 860 }); // goog.scope |
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