The Tor Browser / file comparison
comparison: dom/base/CompositionStringSynthesizer.cpp
dom/base/CompositionStringSynthesizer.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:758b562589e6 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "CompositionStringSynthesizer.h" | |
| 7 #include "nsContentUtils.h" | |
| 8 #include "nsIDocShell.h" | |
| 9 #include "nsIFrame.h" | |
| 10 #include "nsIPresShell.h" | |
| 11 #include "nsIWidget.h" | |
| 12 #include "nsPIDOMWindow.h" | |
| 13 #include "nsView.h" | |
| 14 #include "mozilla/TextEvents.h" | |
| 15 | |
| 16 namespace mozilla { | |
| 17 namespace dom { | |
| 18 | |
| 19 NS_IMPL_ISUPPORTS(CompositionStringSynthesizer, | |
| 20 nsICompositionStringSynthesizer) | |
| 21 | |
| 22 CompositionStringSynthesizer::CompositionStringSynthesizer( | |
| 23 nsPIDOMWindow* aWindow) | |
| 24 { | |
| 25 mWindow = do_GetWeakReference(aWindow); | |
| 26 mClauses = new TextRangeArray(); | |
| 27 ClearInternal(); | |
| 28 } | |
| 29 | |
| 30 CompositionStringSynthesizer::~CompositionStringSynthesizer() | |
| 31 { | |
| 32 } | |
| 33 | |
| 34 void | |
| 35 CompositionStringSynthesizer::ClearInternal() | |
| 36 { | |
| 37 mString.Truncate(); | |
| 38 mClauses->Clear(); | |
| 39 mCaret.mRangeType = 0; | |
| 40 } | |
| 41 | |
| 42 nsIWidget* | |
| 43 CompositionStringSynthesizer::GetWidget() | |
| 44 { | |
| 45 nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow); | |
| 46 if (!window) { | |
| 47 return nullptr; | |
| 48 } | |
| 49 nsIDocShell *docShell = window->GetDocShell(); | |
| 50 if (!docShell) { | |
| 51 return nullptr; | |
| 52 } | |
| 53 nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell(); | |
| 54 if (!presShell) { | |
| 55 return nullptr; | |
| 56 } | |
| 57 nsIFrame* frame = presShell->GetRootFrame(); | |
| 58 if (!frame) { | |
| 59 return nullptr; | |
| 60 } | |
| 61 return frame->GetView()->GetNearestWidget(nullptr); | |
| 62 } | |
| 63 | |
| 64 NS_IMETHODIMP | |
| 65 CompositionStringSynthesizer::SetString(const nsAString& aString) | |
| 66 { | |
| 67 nsCOMPtr<nsIWidget> widget = GetWidget(); | |
| 68 NS_ENSURE_TRUE(widget && !widget->Destroyed(), NS_ERROR_NOT_AVAILABLE); | |
| 69 | |
| 70 mString = aString; | |
| 71 return NS_OK; | |
| 72 } | |
| 73 | |
| 74 NS_IMETHODIMP | |
| 75 CompositionStringSynthesizer::AppendClause(uint32_t aLength, | |
| 76 uint32_t aAttribute) | |
| 77 { | |
| 78 nsCOMPtr<nsIWidget> widget = GetWidget(); | |
| 79 NS_ENSURE_TRUE(widget && !widget->Destroyed(), NS_ERROR_NOT_AVAILABLE); | |
| 80 | |
| 81 switch (aAttribute) { | |
| 82 case ATTR_RAWINPUT: | |
| 83 case ATTR_SELECTEDRAWTEXT: | |
| 84 case ATTR_CONVERTEDTEXT: | |
| 85 case ATTR_SELECTEDCONVERTEDTEXT: { | |
| 86 TextRange textRange; | |
| 87 textRange.mStartOffset = | |
| 88 mClauses->IsEmpty() ? 0 : mClauses->LastElement().mEndOffset; | |
| 89 textRange.mEndOffset = textRange.mStartOffset + aLength; | |
| 90 textRange.mRangeType = aAttribute; | |
| 91 mClauses->AppendElement(textRange); | |
| 92 return NS_OK; | |
| 93 } | |
| 94 default: | |
| 95 return NS_ERROR_INVALID_ARG; | |
| 96 } | |
| 97 } | |
| 98 | |
| 99 NS_IMETHODIMP | |
| 100 CompositionStringSynthesizer::SetCaret(uint32_t aOffset, uint32_t aLength) | |
| 101 { | |
| 102 nsCOMPtr<nsIWidget> widget = GetWidget(); | |
| 103 NS_ENSURE_TRUE(widget && !widget->Destroyed(), NS_ERROR_NOT_AVAILABLE); | |
| 104 | |
| 105 mCaret.mStartOffset = aOffset; | |
| 106 mCaret.mEndOffset = mCaret.mStartOffset + aLength; | |
| 107 mCaret.mRangeType = NS_TEXTRANGE_CARETPOSITION; | |
| 108 return NS_OK; | |
| 109 } | |
| 110 | |
| 111 NS_IMETHODIMP | |
| 112 CompositionStringSynthesizer::DispatchEvent(bool* aDefaultPrevented) | |
| 113 { | |
| 114 NS_ENSURE_ARG_POINTER(aDefaultPrevented); | |
| 115 nsCOMPtr<nsIWidget> widget = GetWidget(); | |
| 116 NS_ENSURE_TRUE(widget && !widget->Destroyed(), NS_ERROR_NOT_AVAILABLE); | |
| 117 | |
| 118 if (!nsContentUtils::IsCallerChrome()) { | |
| 119 return NS_ERROR_DOM_SECURITY_ERR; | |
| 120 } | |
| 121 | |
| 122 if (!mClauses->IsEmpty() && | |
| 123 mClauses->LastElement().mEndOffset != mString.Length()) { | |
| 124 NS_WARNING("Sum of length of the all clauses must be same as the string " | |
| 125 "length"); | |
| 126 ClearInternal(); | |
| 127 return NS_ERROR_ILLEGAL_VALUE; | |
| 128 } | |
| 129 if (mCaret.mRangeType == NS_TEXTRANGE_CARETPOSITION) { | |
| 130 if (mCaret.mEndOffset > mString.Length()) { | |
| 131 NS_WARNING("Caret position is out of the composition string"); | |
| 132 ClearInternal(); | |
| 133 return NS_ERROR_ILLEGAL_VALUE; | |
| 134 } | |
| 135 mClauses->AppendElement(mCaret); | |
| 136 } | |
| 137 | |
| 138 WidgetTextEvent textEvent(true, NS_TEXT_TEXT, widget); | |
| 139 textEvent.time = PR_IntervalNow(); | |
| 140 textEvent.theText = mString; | |
| 141 if (!mClauses->IsEmpty()) { | |
| 142 textEvent.mRanges = mClauses; | |
| 143 } | |
| 144 | |
| 145 // XXX How should we set false for this on b2g? | |
| 146 textEvent.mFlags.mIsSynthesizedForTests = true; | |
| 147 | |
| 148 nsEventStatus status = nsEventStatus_eIgnore; | |
| 149 nsresult rv = widget->DispatchEvent(&textEvent, status); | |
| 150 *aDefaultPrevented = (status == nsEventStatus_eConsumeNoDefault); | |
| 151 | |
| 152 ClearInternal(); | |
| 153 | |
| 154 NS_ENSURE_SUCCESS(rv, rv); | |
| 155 | |
| 156 return NS_OK; | |
| 157 } | |
| 158 | |
| 159 } // namespace dom | |
| 160 } // namespace mozilla |
