The Tor Browser / file comparison
comparison: accessible/src/jsat/content-script.js
accessible/src/jsat/content-script.js
- branch
- TOR_BUG_9701
- changeset 3
- 141e0f1194b1
equal
deleted
inserted
replaced
| -1:000000000000 | 0:40b50d2f7ea5 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 let Ci = Components.interfaces; | |
| 6 let Cu = Components.utils; | |
| 7 | |
| 8 Cu.import('resource://gre/modules/XPCOMUtils.jsm'); | |
| 9 XPCOMUtils.defineLazyModuleGetter(this, 'Logger', | |
| 10 'resource://gre/modules/accessibility/Utils.jsm'); | |
| 11 XPCOMUtils.defineLazyModuleGetter(this, 'Presentation', | |
| 12 'resource://gre/modules/accessibility/Presentation.jsm'); | |
| 13 XPCOMUtils.defineLazyModuleGetter(this, 'TraversalRules', | |
| 14 'resource://gre/modules/accessibility/TraversalRules.jsm'); | |
| 15 XPCOMUtils.defineLazyModuleGetter(this, 'Utils', | |
| 16 'resource://gre/modules/accessibility/Utils.jsm'); | |
| 17 XPCOMUtils.defineLazyModuleGetter(this, 'EventManager', | |
| 18 'resource://gre/modules/accessibility/EventManager.jsm'); | |
| 19 XPCOMUtils.defineLazyModuleGetter(this, 'ContentControl', | |
| 20 'resource://gre/modules/accessibility/ContentControl.jsm'); | |
| 21 XPCOMUtils.defineLazyModuleGetter(this, 'Roles', | |
| 22 'resource://gre/modules/accessibility/Constants.jsm'); | |
| 23 | |
| 24 Logger.debug('content-script.js'); | |
| 25 | |
| 26 let eventManager = null; | |
| 27 let contentControl = null; | |
| 28 | |
| 29 function forwardToParent(aMessage) { | |
| 30 // XXX: This is a silly way to make a deep copy | |
| 31 let newJSON = JSON.parse(JSON.stringify(aMessage.json)); | |
| 32 newJSON.origin = 'child'; | |
| 33 sendAsyncMessage(aMessage.name, newJSON); | |
| 34 } | |
| 35 | |
| 36 function forwardToChild(aMessage, aListener, aVCPosition) { | |
| 37 let acc = aVCPosition || Utils.getVirtualCursor(content.document).position; | |
| 38 | |
| 39 if (!Utils.isAliveAndVisible(acc) || acc.role != Roles.INTERNAL_FRAME) { | |
| 40 return false; | |
| 41 } | |
| 42 | |
| 43 Logger.debug(() => { | |
| 44 return ['forwardToChild', Logger.accessibleToString(acc), | |
| 45 aMessage.name, JSON.stringify(aMessage.json, null, ' ')]; | |
| 46 }); | |
| 47 | |
| 48 let mm = Utils.getMessageManager(acc.DOMNode); | |
| 49 | |
| 50 if (aListener) { | |
| 51 mm.addMessageListener(aMessage.name, aListener); | |
| 52 } | |
| 53 | |
| 54 // XXX: This is a silly way to make a deep copy | |
| 55 let newJSON = JSON.parse(JSON.stringify(aMessage.json)); | |
| 56 newJSON.origin = 'parent'; | |
| 57 if (Utils.isContentProcess) { | |
| 58 // XXX: OOP content's screen offset is 0, | |
| 59 // so we remove the real screen offset here. | |
| 60 newJSON.x -= content.mozInnerScreenX; | |
| 61 newJSON.y -= content.mozInnerScreenY; | |
| 62 } | |
| 63 mm.sendAsyncMessage(aMessage.name, newJSON); | |
| 64 return true; | |
| 65 } | |
| 66 | |
| 67 function activateContextMenu(aMessage) { | |
| 68 function sendContextMenuCoordinates(aAccessible) { | |
| 69 let bounds = Utils.getBounds(aAccessible); | |
| 70 sendAsyncMessage('AccessFu:ActivateContextMenu', {bounds: bounds}); | |
| 71 } | |
| 72 | |
| 73 let position = Utils.getVirtualCursor(content.document).position; | |
| 74 if (!forwardToChild(aMessage, activateContextMenu, position)) { | |
| 75 sendContextMenuCoordinates(position); | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 function presentCaretChange(aText, aOldOffset, aNewOffset) { | |
| 80 if (aOldOffset !== aNewOffset) { | |
| 81 let msg = Presentation.textSelectionChanged(aText, aNewOffset, aNewOffset, | |
| 82 aOldOffset, aOldOffset, true); | |
| 83 sendAsyncMessage('AccessFu:Present', msg); | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 function scroll(aMessage) { | |
| 88 function sendScrollCoordinates(aAccessible) { | |
| 89 let bounds = Utils.getBounds(aAccessible); | |
| 90 sendAsyncMessage('AccessFu:DoScroll', | |
| 91 { bounds: bounds, | |
| 92 page: aMessage.json.page, | |
| 93 horizontal: aMessage.json.horizontal }); | |
| 94 } | |
| 95 | |
| 96 let position = Utils.getVirtualCursor(content.document).position; | |
| 97 if (!forwardToChild(aMessage, scroll, position)) { | |
| 98 sendScrollCoordinates(position); | |
| 99 } | |
| 100 } | |
| 101 | |
| 102 function adjustRange(aMessage) { | |
| 103 function sendUpDownKey(aAccessible) { | |
| 104 let acc = Utils.getEmbeddedControl(aAccessible) || aAccessible; | |
| 105 let elem = acc.DOMNode; | |
| 106 if (elem) { | |
| 107 if (elem.tagName === 'INPUT' && elem.type === 'range') { | |
| 108 elem[aMessage.json.direction === 'forward' ? 'stepDown' : 'stepUp'](); | |
| 109 let changeEvent = content.document.createEvent('UIEvent'); | |
| 110 changeEvent.initEvent('change', true, true); | |
| 111 elem.dispatchEvent(changeEvent); | |
| 112 } else { | |
| 113 let evt = content.document.createEvent('KeyboardEvent'); | |
| 114 let keycode = aMessage.json.direction == 'forward' ? | |
| 115 content.KeyEvent.DOM_VK_DOWN : content.KeyEvent.DOM_VK_UP; | |
| 116 evt.initKeyEvent( | |
| 117 "keypress", false, true, null, false, false, false, false, keycode, 0); | |
| 118 elem.dispatchEvent(evt); | |
| 119 } | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 let position = Utils.getVirtualCursor(content.document).position; | |
| 124 if (!forwardToChild(aMessage, adjustRange, position)) { | |
| 125 sendUpDownKey(position); | |
| 126 } | |
| 127 } | |
| 128 addMessageListener( | |
| 129 'AccessFu:Start', | |
| 130 function(m) { | |
| 131 if (m.json.logLevel) { | |
| 132 Logger.logLevel = Logger[m.json.logLevel]; | |
| 133 } | |
| 134 | |
| 135 Logger.debug('AccessFu:Start'); | |
| 136 if (m.json.buildApp) | |
| 137 Utils.MozBuildApp = m.json.buildApp; | |
| 138 | |
| 139 addMessageListener('AccessFu:ContextMenu', activateContextMenu); | |
| 140 addMessageListener('AccessFu:Scroll', scroll); | |
| 141 addMessageListener('AccessFu:AdjustRange', adjustRange); | |
| 142 | |
| 143 if (!eventManager) { | |
| 144 eventManager = new EventManager(this); | |
| 145 } | |
| 146 eventManager.start(); | |
| 147 | |
| 148 if (!contentControl) { | |
| 149 contentControl = new ContentControl(this); | |
| 150 } | |
| 151 contentControl.start(); | |
| 152 | |
| 153 sendAsyncMessage('AccessFu:ContentStarted'); | |
| 154 }); | |
| 155 | |
| 156 addMessageListener( | |
| 157 'AccessFu:Stop', | |
| 158 function(m) { | |
| 159 Logger.debug('AccessFu:Stop'); | |
| 160 | |
| 161 removeMessageListener('AccessFu:ContextMenu', activateContextMenu); | |
| 162 removeMessageListener('AccessFu:Scroll', scroll); | |
| 163 | |
| 164 eventManager.stop(); | |
| 165 contentControl.stop(); | |
| 166 }); | |
| 167 | |
| 168 sendAsyncMessage('AccessFu:Ready'); |
