mirror of
https://github.com/HeyPuter/firefox.git
synced 2026-11-13 20:14:57 -10:00
Razvan Maries
fb31761821
Backed out changeset 5511edd700f7 (bug 970802) Backed out changeset 1fb9cf2264b6 (bug 970802) Backed out changeset 6b185296c742 (bug 970802) Backed out changeset ce6853e64ed6 (bug 970802) Backed out changeset aa9bd45c09b1 (bug 970802)
394 lines
14 KiB
C++
394 lines
14 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/HTMLEditor.h"
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#include "HTMLEditUtils.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/dom/Element.h"
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#include "nsAString.h"
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#include "nsCOMPtr.h"
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#include "nsDebug.h"
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#include "nsError.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIContent.h"
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#include "nsLiteralString.h"
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#include "nsReadableUtils.h"
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#include "nsString.h"
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#include "nscore.h"
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namespace mozilla {
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NS_IMETHODIMP
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HTMLEditor::SetInlineTableEditingEnabled(bool aIsEnabled) {
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EnableInlineTableEditor(aIsEnabled);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLEditor::GetInlineTableEditingEnabled(bool* aIsEnabled) {
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*aIsEnabled = IsInlineTableEditorEnabled();
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return NS_OK;
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}
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nsresult HTMLEditor::ShowInlineTableEditingUIInternal(Element& aCellElement) {
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if (NS_WARN_IF(!HTMLEditUtils::IsTableCell(&aCellElement))) {
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return NS_OK;
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}
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if (NS_WARN_IF(!IsDescendantOfEditorRoot(&aCellElement))) {
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return NS_ERROR_FAILURE;
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}
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if (NS_WARN_IF(mInlineEditedCell)) {
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return NS_ERROR_FAILURE;
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}
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mInlineEditedCell = &aCellElement;
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// the resizers and the shadow will be anonymous children of the body
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RefPtr<Element> bodyElement = GetRoot();
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if (NS_WARN_IF(!bodyElement)) {
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return NS_ERROR_FAILURE;
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}
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do {
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// The buttons of inline table editor will be children of the <body>
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// element. Creating the anonymous elements may cause calling
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// HideInlineTableEditingUIInternal() via a mutation event listener.
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// So, we should store new button to a local variable, then, check:
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// - whether creating a button is already set to the member or not
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// - whether already created buttons are changed to another set
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// If creating the buttons are canceled, we hit the latter check.
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// If buttons for another table are created during this, we hit the latter
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// check too.
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// If buttons are just created again for same element, we hit the former
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// check.
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ManualNACPtr addColumnBeforeButton = CreateAnonymousElement(
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nsGkAtoms::a, *bodyElement,
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NS_LITERAL_STRING("mozTableAddColumnBefore"), false);
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if (NS_WARN_IF(!addColumnBeforeButton)) {
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break; // Hide unnecessary buttons created above.
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}
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if (NS_WARN_IF(mAddColumnBeforeButton) ||
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NS_WARN_IF(mInlineEditedCell != &aCellElement)) {
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return NS_ERROR_FAILURE; // Don't hide another set of buttons.
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}
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mAddColumnBeforeButton = std::move(addColumnBeforeButton);
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ManualNACPtr removeColumnButton = CreateAnonymousElement(
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nsGkAtoms::a, *bodyElement, NS_LITERAL_STRING("mozTableRemoveColumn"),
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false);
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if (NS_WARN_IF(!removeColumnButton)) {
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break;
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}
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if (NS_WARN_IF(mRemoveColumnButton) ||
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NS_WARN_IF(mInlineEditedCell != &aCellElement)) {
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return NS_ERROR_FAILURE;
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}
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mRemoveColumnButton = std::move(removeColumnButton);
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ManualNACPtr addColumnAfterButton = CreateAnonymousElement(
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nsGkAtoms::a, *bodyElement, NS_LITERAL_STRING("mozTableAddColumnAfter"),
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false);
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if (NS_WARN_IF(!addColumnAfterButton)) {
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break;
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}
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if (NS_WARN_IF(mAddColumnAfterButton) ||
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NS_WARN_IF(mInlineEditedCell != &aCellElement)) {
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return NS_ERROR_FAILURE;
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}
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mAddColumnAfterButton = std::move(addColumnAfterButton);
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ManualNACPtr addRowBeforeButton = CreateAnonymousElement(
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nsGkAtoms::a, *bodyElement, NS_LITERAL_STRING("mozTableAddRowBefore"),
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false);
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if (NS_WARN_IF(!addRowBeforeButton)) {
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break;
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}
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if (NS_WARN_IF(mAddRowBeforeButton) ||
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NS_WARN_IF(mInlineEditedCell != &aCellElement)) {
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return NS_ERROR_FAILURE;
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}
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mAddRowBeforeButton = std::move(addRowBeforeButton);
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ManualNACPtr removeRowButton =
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CreateAnonymousElement(nsGkAtoms::a, *bodyElement,
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NS_LITERAL_STRING("mozTableRemoveRow"), false);
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if (NS_WARN_IF(!removeRowButton)) {
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break;
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}
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if (NS_WARN_IF(mRemoveRowButton) ||
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NS_WARN_IF(mInlineEditedCell != &aCellElement)) {
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return NS_ERROR_FAILURE;
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}
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mRemoveRowButton = std::move(removeRowButton);
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ManualNACPtr addRowAfterButton =
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CreateAnonymousElement(nsGkAtoms::a, *bodyElement,
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NS_LITERAL_STRING("mozTableAddRowAfter"), false);
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if (NS_WARN_IF(!addRowAfterButton)) {
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break;
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}
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if (NS_WARN_IF(mAddRowAfterButton) ||
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NS_WARN_IF(mInlineEditedCell != &aCellElement)) {
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return NS_ERROR_FAILURE;
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}
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mAddRowAfterButton = std::move(addRowAfterButton);
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AddMouseClickListener(mAddColumnBeforeButton);
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AddMouseClickListener(mRemoveColumnButton);
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AddMouseClickListener(mAddColumnAfterButton);
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AddMouseClickListener(mAddRowBeforeButton);
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AddMouseClickListener(mRemoveRowButton);
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AddMouseClickListener(mAddRowAfterButton);
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nsresult rv = RefreshInlineTableEditingUIInternal();
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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return NS_OK;
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} while (true);
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HideInlineTableEditingUIInternal();
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return NS_ERROR_FAILURE;
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}
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void HTMLEditor::HideInlineTableEditingUIInternal() {
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mInlineEditedCell = nullptr;
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RemoveMouseClickListener(mAddColumnBeforeButton);
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RemoveMouseClickListener(mRemoveColumnButton);
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RemoveMouseClickListener(mAddColumnAfterButton);
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RemoveMouseClickListener(mAddRowBeforeButton);
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RemoveMouseClickListener(mRemoveRowButton);
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RemoveMouseClickListener(mAddRowAfterButton);
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// get the presshell's document observer interface.
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RefPtr<PresShell> presShell = GetPresShell();
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// We allow the pres shell to be null; when it is, we presume there
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// are no document observers to notify, but we still want to
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// UnbindFromTree.
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// Calling DeleteRefToAnonymousNode() may cause showing the UI again.
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// Therefore, we should forget all anonymous contents first.
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// Otherwise, we could leak the old content because of overwritten by
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// ShowInlineTableEditingUIInternal().
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ManualNACPtr addColumnBeforeButton(std::move(mAddColumnBeforeButton));
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ManualNACPtr removeColumnButton(std::move(mRemoveColumnButton));
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ManualNACPtr addColumnAfterButton(std::move(mAddColumnAfterButton));
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ManualNACPtr addRowBeforeButton(std::move(mAddRowBeforeButton));
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ManualNACPtr removeRowButton(std::move(mRemoveRowButton));
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ManualNACPtr addRowAfterButton(std::move(mAddRowAfterButton));
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DeleteRefToAnonymousNode(std::move(addColumnBeforeButton), presShell);
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DeleteRefToAnonymousNode(std::move(removeColumnButton), presShell);
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DeleteRefToAnonymousNode(std::move(addColumnAfterButton), presShell);
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DeleteRefToAnonymousNode(std::move(addRowBeforeButton), presShell);
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DeleteRefToAnonymousNode(std::move(removeRowButton), presShell);
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DeleteRefToAnonymousNode(std::move(addRowAfterButton), presShell);
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}
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nsresult HTMLEditor::DoInlineTableEditingAction(const Element& aElement) {
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nsAutoString anonclass;
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aElement.GetAttr(kNameSpaceID_None, nsGkAtoms::_moz_anonclass, anonclass);
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if (!StringBeginsWith(anonclass, NS_LITERAL_STRING("mozTable"))) {
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return NS_OK;
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}
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AutoEditActionDataSetter editActionData(*this, EditAction::eNotEditing);
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if (NS_WARN_IF(!editActionData.CanHandle())) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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RefPtr<Element> tableElement = GetEnclosingTable(mInlineEditedCell);
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int32_t rowCount, colCount;
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nsresult rv = GetTableSize(tableElement, &rowCount, &colCount);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return EditorBase::ToGenericNSResult(rv);
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}
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bool hideUI = false;
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bool hideResizersWithInlineTableUI = (mResizedObject == tableElement);
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if (anonclass.EqualsLiteral("mozTableAddColumnBefore")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eInsertTableColumn);
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if (NS_WARN_IF(!editActionData.CanHandle())) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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DebugOnly<nsresult> rv = InsertTableColumnsWithTransaction(
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1, InsertPosition::eBeforeSelectedCell);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"Failed to insert a column before the selected cell");
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} else if (anonclass.EqualsLiteral("mozTableAddColumnAfter")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eInsertTableColumn);
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if (NS_WARN_IF(!editActionData.CanHandle())) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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DebugOnly<nsresult> rv = InsertTableColumnsWithTransaction(
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1, InsertPosition::eAfterSelectedCell);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"Failed to insert a column after the selected cell");
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} else if (anonclass.EqualsLiteral("mozTableAddRowBefore")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eInsertTableRowElement);
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if (NS_WARN_IF(!editActionData.CanHandle())) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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DebugOnly<nsresult> rv =
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InsertTableRowsWithTransaction(1, InsertPosition::eBeforeSelectedCell);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"Failed to insert a row before the selected cell");
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} else if (anonclass.EqualsLiteral("mozTableAddRowAfter")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eInsertTableRowElement);
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if (NS_WARN_IF(!editActionData.CanHandle())) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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DebugOnly<nsresult> rv =
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InsertTableRowsWithTransaction(1, InsertPosition::eAfterSelectedCell);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"Failed to insert a row after the selected cell");
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} else if (anonclass.EqualsLiteral("mozTableRemoveColumn")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eRemoveTableColumn);
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if (NS_WARN_IF(!editActionData.CanHandle())) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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DebugOnly<nsresult> rv = DeleteSelectedTableColumnsWithTransaction(1);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"Failed to delete the selected table column");
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hideUI = (colCount == 1);
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} else if (anonclass.EqualsLiteral("mozTableRemoveRow")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eRemoveTableRowElement);
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if (NS_WARN_IF(!editActionData.CanHandle())) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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DebugOnly<nsresult> rv = DeleteSelectedTableRowsWithTransaction(1);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"Failed to delete the selected table row");
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hideUI = (rowCount == 1);
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} else {
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return NS_OK;
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}
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// InsertTableRowsWithTransaction() might causes reframe.
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if (Destroyed()) {
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return NS_OK;
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}
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if (hideUI) {
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HideInlineTableEditingUIInternal();
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if (hideResizersWithInlineTableUI) {
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DebugOnly<nsresult> rv = HideResizersInternal();
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Failed to hide resizers");
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}
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}
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return NS_OK;
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}
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void HTMLEditor::AddMouseClickListener(Element* aElement) {
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if (aElement) {
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aElement->AddEventListener(NS_LITERAL_STRING("click"), mEventListener,
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true);
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}
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}
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void HTMLEditor::RemoveMouseClickListener(Element* aElement) {
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if (aElement) {
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aElement->RemoveEventListener(NS_LITERAL_STRING("click"), mEventListener,
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true);
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}
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}
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NS_IMETHODIMP
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HTMLEditor::RefreshInlineTableEditingUI() {
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AutoEditActionDataSetter editActionData(*this, EditAction::eNotEditing);
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if (NS_WARN_IF(!editActionData.CanHandle())) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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nsresult rv = RefreshInlineTableEditingUIInternal();
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return EditorBase::ToGenericNSResult(rv);
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}
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return NS_OK;
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}
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nsresult HTMLEditor::RefreshInlineTableEditingUIInternal() {
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if (!mInlineEditedCell) {
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return NS_OK;
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}
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RefPtr<nsGenericHTMLElement> inlineEditingCellElement =
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nsGenericHTMLElement::FromNode(mInlineEditedCell);
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if (NS_WARN_IF(!inlineEditingCellElement)) {
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return NS_ERROR_FAILURE;
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}
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int32_t cellX = 0, cellY = 0;
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GetElementOrigin(*mInlineEditedCell, cellX, cellY);
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int32_t cellWidth = inlineEditingCellElement->OffsetWidth();
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int32_t cellHeight = inlineEditingCellElement->OffsetHeight();
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int32_t centerOfCellX = cellX + cellWidth / 2;
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int32_t centerOfCellY = cellY + cellHeight / 2;
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RefPtr<Element> tableElement = GetEnclosingTable(mInlineEditedCell);
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int32_t rowCount = 0, colCount = 0;
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nsresult rv = GetTableSize(tableElement, &rowCount, &colCount);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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RefPtr<Element> addColumunBeforeButton = mAddColumnBeforeButton.get();
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SetAnonymousElementPosition(centerOfCellX - 10, cellY - 7,
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addColumunBeforeButton);
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if (NS_WARN_IF(addColumunBeforeButton != mAddColumnBeforeButton.get())) {
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return NS_ERROR_FAILURE;
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}
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RefPtr<Element> removeColumnButton = mRemoveColumnButton.get();
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SetAnonymousElementPosition(centerOfCellX - 4, cellY - 7, removeColumnButton);
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if (NS_WARN_IF(removeColumnButton != mRemoveColumnButton.get())) {
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return NS_ERROR_FAILURE;
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}
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RefPtr<Element> addColumnAfterButton = mAddColumnAfterButton.get();
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SetAnonymousElementPosition(centerOfCellX + 6, cellY - 7,
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addColumnAfterButton);
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if (NS_WARN_IF(addColumnAfterButton != mAddColumnAfterButton.get())) {
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return NS_ERROR_FAILURE;
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}
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RefPtr<Element> addRowBeforeButton = mAddRowBeforeButton.get();
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SetAnonymousElementPosition(cellX - 7, centerOfCellY - 10,
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addRowBeforeButton);
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if (NS_WARN_IF(addRowBeforeButton != mAddRowBeforeButton.get())) {
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return NS_ERROR_FAILURE;
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}
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RefPtr<Element> removeRowButton = mRemoveRowButton.get();
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SetAnonymousElementPosition(cellX - 7, centerOfCellY - 4, removeRowButton);
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if (NS_WARN_IF(removeRowButton != mRemoveRowButton.get())) {
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return NS_ERROR_FAILURE;
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}
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RefPtr<Element> addRowAfterButton = mAddRowAfterButton.get();
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SetAnonymousElementPosition(cellX - 7, centerOfCellY + 6, addRowAfterButton);
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if (NS_WARN_IF(addRowAfterButton != mAddRowAfterButton.get())) {
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return NS_ERROR_FAILURE;
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}
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return NS_OK;
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}
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} // namespace mozilla
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