dom/base/CompositionStringSynthesizer.cpp@b8a032363ba2 (annotated)
dom/base/CompositionStringSynthesizer.cpp
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "CompositionStringSynthesizer.h" |
| michael@0 | 7 | #include "nsContentUtils.h" |
| michael@0 | 8 | #include "nsIDocShell.h" |
| michael@0 | 9 | #include "nsIFrame.h" |
| michael@0 | 10 | #include "nsIPresShell.h" |
| michael@0 | 11 | #include "nsIWidget.h" |
| michael@0 | 12 | #include "nsPIDOMWindow.h" |
| michael@0 | 13 | #include "nsView.h" |
| michael@0 | 14 | #include "mozilla/TextEvents.h" |
| michael@0 | 15 | |
| michael@0 | 16 | namespace mozilla { |
| michael@0 | 17 | namespace dom { |
| michael@0 | 18 | |
| michael@0 | 19 | NS_IMPL_ISUPPORTS(CompositionStringSynthesizer, |
| michael@0 | 20 | nsICompositionStringSynthesizer) |
| michael@0 | 21 | |
| michael@0 | 22 | CompositionStringSynthesizer::CompositionStringSynthesizer( |
| michael@0 | 23 | nsPIDOMWindow* aWindow) |
| michael@0 | 24 | { |
| michael@0 | 25 | mWindow = do_GetWeakReference(aWindow); |
| michael@0 | 26 | mClauses = new TextRangeArray(); |
| michael@0 | 27 | ClearInternal(); |
| michael@0 | 28 | } |
| michael@0 | 29 | |
| michael@0 | 30 | CompositionStringSynthesizer::~CompositionStringSynthesizer() |
| michael@0 | 31 | { |
| michael@0 | 32 | } |
| michael@0 | 33 | |
| michael@0 | 34 | void |
| michael@0 | 35 | CompositionStringSynthesizer::ClearInternal() |
| michael@0 | 36 | { |
| michael@0 | 37 | mString.Truncate(); |
| michael@0 | 38 | mClauses->Clear(); |
| michael@0 | 39 | mCaret.mRangeType = 0; |
| michael@0 | 40 | } |
| michael@0 | 41 | |
| michael@0 | 42 | nsIWidget* |
| michael@0 | 43 | CompositionStringSynthesizer::GetWidget() |
| michael@0 | 44 | { |
| michael@0 | 45 | nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow); |
| michael@0 | 46 | if (!window) { |
| michael@0 | 47 | return nullptr; |
| michael@0 | 48 | } |
| michael@0 | 49 | nsIDocShell *docShell = window->GetDocShell(); |
| michael@0 | 50 | if (!docShell) { |
| michael@0 | 51 | return nullptr; |
| michael@0 | 52 | } |
| michael@0 | 53 | nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell(); |
| michael@0 | 54 | if (!presShell) { |
| michael@0 | 55 | return nullptr; |
| michael@0 | 56 | } |
| michael@0 | 57 | nsIFrame* frame = presShell->GetRootFrame(); |
| michael@0 | 58 | if (!frame) { |
| michael@0 | 59 | return nullptr; |
| michael@0 | 60 | } |
| michael@0 | 61 | return frame->GetView()->GetNearestWidget(nullptr); |
| michael@0 | 62 | } |
| michael@0 | 63 | |
| michael@0 | 64 | NS_IMETHODIMP |
| michael@0 | 65 | CompositionStringSynthesizer::SetString(const nsAString& aString) |
| michael@0 | 66 | { |
| michael@0 | 67 | nsCOMPtr<nsIWidget> widget = GetWidget(); |
| michael@0 | 68 | NS_ENSURE_TRUE(widget && !widget->Destroyed(), NS_ERROR_NOT_AVAILABLE); |
| michael@0 | 69 | |
| michael@0 | 70 | mString = aString; |
| michael@0 | 71 | return NS_OK; |
| michael@0 | 72 | } |
| michael@0 | 73 | |
| michael@0 | 74 | NS_IMETHODIMP |
| michael@0 | 75 | CompositionStringSynthesizer::AppendClause(uint32_t aLength, |
| michael@0 | 76 | uint32_t aAttribute) |
| michael@0 | 77 | { |
| michael@0 | 78 | nsCOMPtr<nsIWidget> widget = GetWidget(); |
| michael@0 | 79 | NS_ENSURE_TRUE(widget && !widget->Destroyed(), NS_ERROR_NOT_AVAILABLE); |
| michael@0 | 80 | |
| michael@0 | 81 | switch (aAttribute) { |
| michael@0 | 82 | case ATTR_RAWINPUT: |
| michael@0 | 83 | case ATTR_SELECTEDRAWTEXT: |
| michael@0 | 84 | case ATTR_CONVERTEDTEXT: |
| michael@0 | 85 | case ATTR_SELECTEDCONVERTEDTEXT: { |
| michael@0 | 86 | TextRange textRange; |
| michael@0 | 87 | textRange.mStartOffset = |
| michael@0 | 88 | mClauses->IsEmpty() ? 0 : mClauses->LastElement().mEndOffset; |
| michael@0 | 89 | textRange.mEndOffset = textRange.mStartOffset + aLength; |
| michael@0 | 90 | textRange.mRangeType = aAttribute; |
| michael@0 | 91 | mClauses->AppendElement(textRange); |
| michael@0 | 92 | return NS_OK; |
| michael@0 | 93 | } |
| michael@0 | 94 | default: |
| michael@0 | 95 | return NS_ERROR_INVALID_ARG; |
| michael@0 | 96 | } |
| michael@0 | 97 | } |
| michael@0 | 98 | |
| michael@0 | 99 | NS_IMETHODIMP |
| michael@0 | 100 | CompositionStringSynthesizer::SetCaret(uint32_t aOffset, uint32_t aLength) |
| michael@0 | 101 | { |
| michael@0 | 102 | nsCOMPtr<nsIWidget> widget = GetWidget(); |
| michael@0 | 103 | NS_ENSURE_TRUE(widget && !widget->Destroyed(), NS_ERROR_NOT_AVAILABLE); |
| michael@0 | 104 | |
| michael@0 | 105 | mCaret.mStartOffset = aOffset; |
| michael@0 | 106 | mCaret.mEndOffset = mCaret.mStartOffset + aLength; |
| michael@0 | 107 | mCaret.mRangeType = NS_TEXTRANGE_CARETPOSITION; |
| michael@0 | 108 | return NS_OK; |
| michael@0 | 109 | } |
| michael@0 | 110 | |
| michael@0 | 111 | NS_IMETHODIMP |
| michael@0 | 112 | CompositionStringSynthesizer::DispatchEvent(bool* aDefaultPrevented) |
| michael@0 | 113 | { |
| michael@0 | 114 | NS_ENSURE_ARG_POINTER(aDefaultPrevented); |
| michael@0 | 115 | nsCOMPtr<nsIWidget> widget = GetWidget(); |
| michael@0 | 116 | NS_ENSURE_TRUE(widget && !widget->Destroyed(), NS_ERROR_NOT_AVAILABLE); |
| michael@0 | 117 | |
| michael@0 | 118 | if (!nsContentUtils::IsCallerChrome()) { |
| michael@0 | 119 | return NS_ERROR_DOM_SECURITY_ERR; |
| michael@0 | 120 | } |
| michael@0 | 121 | |
| michael@0 | 122 | if (!mClauses->IsEmpty() && |
| michael@0 | 123 | mClauses->LastElement().mEndOffset != mString.Length()) { |
| michael@0 | 124 | NS_WARNING("Sum of length of the all clauses must be same as the string " |
| michael@0 | 125 | "length"); |
| michael@0 | 126 | ClearInternal(); |
| michael@0 | 127 | return NS_ERROR_ILLEGAL_VALUE; |
| michael@0 | 128 | } |
| michael@0 | 129 | if (mCaret.mRangeType == NS_TEXTRANGE_CARETPOSITION) { |
| michael@0 | 130 | if (mCaret.mEndOffset > mString.Length()) { |
| michael@0 | 131 | NS_WARNING("Caret position is out of the composition string"); |
| michael@0 | 132 | ClearInternal(); |
| michael@0 | 133 | return NS_ERROR_ILLEGAL_VALUE; |
| michael@0 | 134 | } |
| michael@0 | 135 | mClauses->AppendElement(mCaret); |
| michael@0 | 136 | } |
| michael@0 | 137 | |
| michael@0 | 138 | WidgetTextEvent textEvent(true, NS_TEXT_TEXT, widget); |
| michael@0 | 139 | textEvent.time = PR_IntervalNow(); |
| michael@0 | 140 | textEvent.theText = mString; |
| michael@0 | 141 | if (!mClauses->IsEmpty()) { |
| michael@0 | 142 | textEvent.mRanges = mClauses; |
| michael@0 | 143 | } |
| michael@0 | 144 | |
| michael@0 | 145 | // XXX How should we set false for this on b2g? |
| michael@0 | 146 | textEvent.mFlags.mIsSynthesizedForTests = true; |
| michael@0 | 147 | |
| michael@0 | 148 | nsEventStatus status = nsEventStatus_eIgnore; |
| michael@0 | 149 | nsresult rv = widget->DispatchEvent(&textEvent, status); |
| michael@0 | 150 | *aDefaultPrevented = (status == nsEventStatus_eConsumeNoDefault); |
| michael@0 | 151 | |
| michael@0 | 152 | ClearInternal(); |
| michael@0 | 153 | |
| michael@0 | 154 | NS_ENSURE_SUCCESS(rv, rv); |
| michael@0 | 155 | |
| michael@0 | 156 | return NS_OK; |
| michael@0 | 157 | } |
| michael@0 | 158 | |
| michael@0 | 159 | } // namespace dom |
| michael@0 | 160 | } // namespace mozilla |
