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1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 /* vim: set ts=2 et sw=2 tw=80: */ |
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3 /* This Source Code Form is subject to the terms of the Mozilla Public |
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4 * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
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5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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6 |
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7 #ifndef mozilla_a11y_DocAccessible_inl_h_ |
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8 #define mozilla_a11y_DocAccessible_inl_h_ |
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9 |
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10 #include "DocAccessible.h" |
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11 #include "nsAccessibilityService.h" |
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12 #include "NotificationController.h" |
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13 #include "States.h" |
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14 #include "nsIScrollableFrame.h" |
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15 |
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16 #ifdef A11Y_LOG |
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17 #include "Logging.h" |
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18 #endif |
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19 |
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20 namespace mozilla { |
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21 namespace a11y { |
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22 |
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23 inline void |
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24 DocAccessible::FireDelayedEvent(AccEvent* aEvent) |
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25 { |
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26 #ifdef A11Y_LOG |
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27 if (logging::IsEnabled(logging::eDocLoad)) |
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28 logging::DocLoadEventFired(aEvent); |
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29 #endif |
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30 |
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31 mNotificationController->QueueEvent(aEvent); |
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32 } |
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33 |
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34 inline void |
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35 DocAccessible::FireDelayedEvent(uint32_t aEventType, Accessible* aTarget) |
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36 { |
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37 nsRefPtr<AccEvent> event = new AccEvent(aEventType, aTarget); |
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38 FireDelayedEvent(event); |
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39 } |
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40 |
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41 inline void |
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42 DocAccessible::BindChildDocument(DocAccessible* aDocument) |
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43 { |
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44 mNotificationController->ScheduleChildDocBinding(aDocument); |
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45 } |
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46 |
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47 template<class Class, class Arg> |
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48 inline void |
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49 DocAccessible::HandleNotification(Class* aInstance, |
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50 typename TNotification<Class, Arg>::Callback aMethod, |
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51 Arg* aArg) |
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52 { |
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53 if (mNotificationController) { |
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54 mNotificationController->HandleNotification<Class, Arg>(aInstance, |
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55 aMethod, aArg); |
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56 } |
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57 } |
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58 |
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59 inline void |
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60 DocAccessible::UpdateText(nsIContent* aTextNode) |
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61 { |
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62 NS_ASSERTION(mNotificationController, "The document was shut down!"); |
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63 |
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64 // Ignore the notification if initial tree construction hasn't been done yet. |
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65 if (mNotificationController && HasLoadState(eTreeConstructed)) |
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66 mNotificationController->ScheduleTextUpdate(aTextNode); |
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67 } |
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68 |
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69 inline void |
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70 DocAccessible::AddScrollListener() |
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71 { |
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72 // Delay scroll initializing until the document has a root frame. |
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73 if (!mPresShell->GetRootFrame()) |
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74 return; |
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75 |
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76 mDocFlags |= eScrollInitialized; |
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77 nsIScrollableFrame* sf = mPresShell->GetRootScrollFrameAsScrollable(); |
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78 if (sf) { |
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79 sf->AddScrollPositionListener(this); |
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80 |
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81 #ifdef A11Y_LOG |
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82 if (logging::IsEnabled(logging::eDocCreate)) |
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83 logging::Text("add scroll listener"); |
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84 #endif |
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85 } |
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86 } |
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87 |
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88 inline void |
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89 DocAccessible::RemoveScrollListener() |
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90 { |
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91 nsIScrollableFrame* sf = mPresShell->GetRootScrollFrameAsScrollable(); |
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92 if (sf) |
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93 sf->RemoveScrollPositionListener(this); |
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94 } |
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95 |
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96 inline void |
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97 DocAccessible::NotifyOfLoad(uint32_t aLoadEventType) |
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98 { |
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99 mLoadState |= eDOMLoaded; |
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100 mLoadEventType = aLoadEventType; |
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101 |
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102 // If the document is loaded completely then network activity was presumingly |
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103 // caused by file loading. Fire busy state change event. |
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104 if (HasLoadState(eCompletelyLoaded) && IsLoadEventTarget()) { |
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105 nsRefPtr<AccEvent> stateEvent = |
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106 new AccStateChangeEvent(this, states::BUSY, false); |
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107 FireDelayedEvent(stateEvent); |
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108 } |
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109 } |
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110 |
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111 inline void |
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112 DocAccessible::MaybeNotifyOfValueChange(Accessible* aAccessible) |
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113 { |
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114 a11y::role role = aAccessible->Role(); |
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115 if (role == roles::ENTRY || role == roles::COMBOBOX) |
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116 FireDelayedEvent(nsIAccessibleEvent::EVENT_VALUE_CHANGE, aAccessible); |
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117 } |
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118 |
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119 inline Accessible* |
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120 DocAccessible::GetAccessibleEvenIfNotInMapOrContainer(nsINode* aNode) const |
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121 { |
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122 Accessible* acc = GetAccessibleEvenIfNotInMap(aNode); |
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123 return acc ? acc : GetContainerAccessible(aNode); |
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124 } |
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125 |
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126 } // namespace a11y |
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127 } // namespace mozilla |
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128 |
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129 #endif |