d5d33843fb
Move the relevant bits to html.css or other UA sheets, and use faster things than attribute selectors (read: classes) for resizers and such things. The hidden class can just be a hidden attribute since we don't otherwise style these. The cursor can just be set at the resizer / grabber creation time. One known behavior change other than this is not styling using the _moz_abspos attribute. The reasoning for this is that these are content nodes, and in general having these kinds of rules for content nodes isn't great. E.g. these two pages behave differently: * data:text/html,<div _moz_abspos=black>boo</div> * data:text/html,<div _moz_abspos=black>boo</div><div contenteditable></div> We could use the style attribute for this, I suppose, just like we set the position or what not, but then we need to save / restore as needed or something. I'd rather not change the stacking order or backgrounds or what not, too. If you feel very strongly about that piece of functionality of the abspos editor I could try to restore it somehow. But I honestly rather not. The rest of the stuff should just work. Differential Revision: https://phabricator.services.mozilla.com/D235319
500 lines
18 KiB
C++
500 lines
18 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 "EditorEventListener.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 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 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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NS_IMETHODIMP HTMLEditor::GetIsInlineTableEditingActive(bool* aIsActive) {
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MOZ_ASSERT(aIsActive);
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*aIsActive = !!mInlineEditedCell;
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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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const RefPtr<Element> editingHost = ComputeEditingHost();
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if (NS_WARN_IF(!editingHost) ||
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NS_WARN_IF(!aCellElement.IsInclusiveDescendantOf(editingHost))) {
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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> rootElement = GetRoot();
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if (NS_WARN_IF(!rootElement)) {
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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, *rootElement, u"mozTableAddColumnBefore"_ns, false);
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if (NS_WARN_IF(!addColumnBeforeButton)) {
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NS_WARNING(
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"HTMLEditor::CreateAnonymousElement(nsGkAtoms::a, "
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"mozTableAddColumnBefore) failed");
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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, *rootElement, u"mozTableRemoveColumn"_ns, false);
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if (!removeColumnButton) {
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NS_WARNING(
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"HTMLEditor::CreateAnonymousElement(nsGkAtoms::a, "
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"mozTableRemoveColumn) failed");
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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, *rootElement, u"mozTableAddColumnAfter"_ns, false);
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if (!addColumnAfterButton) {
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NS_WARNING(
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"HTMLEditor::CreateAnonymousElement(nsGkAtoms::a, "
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"mozTableAddColumnAfter) failed");
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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, *rootElement, u"mozTableAddRowBefore"_ns, false);
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if (!addRowBeforeButton) {
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NS_WARNING(
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"HTMLEditor::CreateAnonymousElement(nsGkAtoms::a, "
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"mozTableAddRowBefore) failed");
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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 = CreateAnonymousElement(
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nsGkAtoms::a, *rootElement, u"mozTableRemoveRow"_ns, false);
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if (!removeRowButton) {
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NS_WARNING(
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"HTMLEditor::CreateAnonymousElement(nsGkAtoms::a, "
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"mozTableRemoveRow) failed");
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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 = CreateAnonymousElement(
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nsGkAtoms::a, *rootElement, u"mozTableAddRowAfter"_ns, false);
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if (!addRowAfterButton) {
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NS_WARNING(
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"HTMLEditor::CreateAnonymousElement(nsGkAtoms::a, "
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"mozTableAddRowAfter) failed");
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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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AddPointerClickListener(mAddColumnBeforeButton);
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AddPointerClickListener(mRemoveColumnButton);
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AddPointerClickListener(mAddColumnAfterButton);
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AddPointerClickListener(mAddRowBeforeButton);
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AddPointerClickListener(mRemoveRowButton);
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AddPointerClickListener(mAddRowAfterButton);
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nsresult rv = RefreshInlineTableEditingUIInternal();
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rv),
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"HTMLEditor::RefreshInlineTableEditingUIInternal() failed");
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return rv;
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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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RemovePointerClickListener(mAddColumnBeforeButton);
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RemovePointerClickListener(mRemoveColumnButton);
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RemovePointerClickListener(mAddColumnAfterButton);
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RemovePointerClickListener(mAddRowBeforeButton);
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RemovePointerClickListener(mRemoveRowButton);
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RemovePointerClickListener(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 classList;
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aElement.GetAttr(nsGkAtoms::_class, classList);
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if (!StringBeginsWith(classList, u"mozTable"_ns)) {
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return NS_OK;
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}
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if (NS_WARN_IF(!mInlineEditedCell) ||
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NS_WARN_IF(!mInlineEditedCell->IsInComposedDoc()) ||
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NS_WARN_IF(
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!HTMLEditUtils::IsTableRow(mInlineEditedCell->GetParentNode()))) {
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return NS_ERROR_NOT_AVAILABLE;
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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 =
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HTMLEditUtils::GetClosestAncestorTableElement(*mInlineEditedCell);
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if (!tableElement) {
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NS_WARNING("HTMLEditor::GetClosestAncestorTableElement() returned nullptr");
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return NS_ERROR_FAILURE;
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}
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int32_t rowCount, colCount;
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nsresult rv = GetTableSize(tableElement, &rowCount, &colCount);
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if (NS_FAILED(rv)) {
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NS_WARNING("HTMLEditor::GetTableSize() failed");
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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 (classList.EqualsLiteral("mozTableAddColumnBefore")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eInsertTableColumn);
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nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
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if (NS_FAILED(rv)) {
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NS_WARNING_ASSERTION(
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rv == NS_ERROR_EDITOR_ACTION_CANCELED,
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"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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DebugOnly<nsresult> rvIgnored =
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InsertTableColumnsWithTransaction(EditorDOMPoint(mInlineEditedCell), 1);
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rvIgnored),
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"HTMLEditor::InsertTableColumnsWithTransaction("
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"EditorDOMPoint(mInlineEditedCell), 1) failed, but ignored");
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} else if (classList.EqualsLiteral("mozTableAddColumnAfter")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eInsertTableColumn);
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nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
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if (NS_FAILED(rv)) {
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NS_WARNING_ASSERTION(
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rv == NS_ERROR_EDITOR_ACTION_CANCELED,
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"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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Element* nextCellElement = nullptr;
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for (nsIContent* maybeNextCellElement = mInlineEditedCell->GetNextSibling();
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maybeNextCellElement;
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maybeNextCellElement = maybeNextCellElement->GetNextSibling()) {
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if (HTMLEditUtils::IsTableCell(maybeNextCellElement)) {
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nextCellElement = maybeNextCellElement->AsElement();
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break;
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}
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}
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DebugOnly<nsresult> rvIgnored = InsertTableColumnsWithTransaction(
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nextCellElement
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? EditorDOMPoint(nextCellElement)
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: EditorDOMPoint::AtEndOf(*mInlineEditedCell->GetParentElement()),
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1);
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rvIgnored),
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"HTMLEditor::InsertTableColumnsWithTransaction("
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"EditorDOMPoint(nextCellElement), 1) failed, but ignored");
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} else if (classList.EqualsLiteral("mozTableAddRowBefore")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eInsertTableRowElement);
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nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
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if (NS_FAILED(rv)) {
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NS_WARNING_ASSERTION(
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rv == NS_ERROR_EDITOR_ACTION_CANCELED,
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"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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OwningNonNull<Element> targetCellElement(*mInlineEditedCell);
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DebugOnly<nsresult> rvIgnored = InsertTableRowsWithTransaction(
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targetCellElement, 1, InsertPosition::eBeforeSelectedCell);
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rvIgnored),
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"HTMLEditor::InsertTableRowsWithTransaction(targetCellElement, 1, "
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"InsertPosition::eBeforeSelectedCell) failed, but ignored");
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} else if (classList.EqualsLiteral("mozTableAddRowAfter")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eInsertTableRowElement);
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nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
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if (NS_FAILED(rv)) {
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NS_WARNING_ASSERTION(
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rv == NS_ERROR_EDITOR_ACTION_CANCELED,
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"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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OwningNonNull<Element> targetCellElement(*mInlineEditedCell);
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DebugOnly<nsresult> rvIgnored = InsertTableRowsWithTransaction(
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targetCellElement, 1, InsertPosition::eAfterSelectedCell);
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rvIgnored),
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"HTMLEditor::InsertTableRowsWithTransaction(targetCellElement, 1, "
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"InsertPosition::eAfterSelectedCell) failed, but ignored");
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} else if (classList.EqualsLiteral("mozTableRemoveColumn")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eRemoveTableColumn);
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nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
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if (NS_FAILED(rv)) {
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NS_WARNING_ASSERTION(
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rv == NS_ERROR_EDITOR_ACTION_CANCELED,
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"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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DebugOnly<nsresult> rvIgnored =
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DeleteSelectedTableColumnsWithTransaction(1);
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rvIgnored),
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"HTMLEditor::DeleteSelectedTableColumnsWithTransaction(1) failed, but "
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"ignored");
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hideUI = (colCount == 1);
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} else if (classList.EqualsLiteral("mozTableRemoveRow")) {
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AutoEditActionDataSetter editActionData(*this,
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EditAction::eRemoveTableRowElement);
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nsresult rv = editActionData.CanHandleAndMaybeDispatchBeforeInputEvent();
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if (NS_FAILED(rv)) {
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NS_WARNING_ASSERTION(
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rv == NS_ERROR_EDITOR_ACTION_CANCELED,
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"CanHandleAndMaybeDispatchBeforeInputEvent(), failed");
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return EditorBase::ToGenericNSResult(rv);
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}
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DebugOnly<nsresult> rvIgnored = DeleteSelectedTableRowsWithTransaction(1);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
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"HTMLEditor::DeleteSelectedTableRowsWithTransaction(1)"
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" failed, but ignored");
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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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if (NS_WARN_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> rvIgnored = HideResizersInternal();
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rvIgnored),
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"HTMLEditor::HideResizersInternal() failed, but ignored");
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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::AddPointerClickListener(Element* aElement) {
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if (NS_WARN_IF(!aElement)) {
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return;
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}
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DebugOnly<nsresult> rvIgnored =
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aElement->AddEventListener(u"click"_ns, mEventListener, true);
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rvIgnored),
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"EventTarget::AddEventListener(click) failed, but ignored");
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}
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void HTMLEditor::RemovePointerClickListener(Element* aElement) {
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if (NS_WARN_IF(!aElement)) {
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return;
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}
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aElement->RemoveEventListener(u"click"_ns, mEventListener, true);
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}
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nsresult HTMLEditor::RefreshInlineTableEditingUIInternal() {
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MOZ_ASSERT(IsEditActionDataAvailable());
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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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DebugOnly<nsresult> rvIgnored =
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GetElementOrigin(*mInlineEditedCell, cellX, cellY);
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
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"HTMLEditor::GetElementOrigin() failed, but ignored");
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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 =
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HTMLEditUtils::GetClosestAncestorTableElement(*mInlineEditedCell);
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if (!tableElement) {
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NS_WARNING("HTMLEditor::GetClosestAncestorTableElement() returned nullptr");
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return NS_ERROR_FAILURE;
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}
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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_FAILED(rv)) {
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NS_WARNING("HTMLEditor::GetTableSize() failed");
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return rv;
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}
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auto setInlineTableEditButtonPosition =
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[this](ManualNACPtr& aButtonElement, int32_t aNewX, int32_t aNewY)
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MOZ_CAN_RUN_SCRIPT_FOR_DEFINITION -> nsresult {
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RefPtr<nsStyledElement> buttonStyledElement =
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nsStyledElement::FromNodeOrNull(aButtonElement.get());
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if (!buttonStyledElement) {
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return NS_OK;
|
|
}
|
|
nsresult rv = SetAnonymousElementPositionWithoutTransaction(
|
|
*buttonStyledElement, aNewX, aNewY);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SetAnonymousElementPositionWithoutTransaction() "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
return NS_WARN_IF(buttonStyledElement != aButtonElement.get())
|
|
? NS_ERROR_FAILURE
|
|
: NS_OK;
|
|
};
|
|
|
|
// clang-format off
|
|
rv = setInlineTableEditButtonPosition(mAddColumnBeforeButton,
|
|
centerOfCellX - 10, cellY - 7);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("Failed to move button for add-column-before");
|
|
return rv;
|
|
}
|
|
rv = setInlineTableEditButtonPosition(mRemoveColumnButton,
|
|
centerOfCellX - 4, cellY - 7);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("Failed to move button for remove-column");
|
|
return rv;
|
|
}
|
|
rv = setInlineTableEditButtonPosition(mAddColumnAfterButton,
|
|
centerOfCellX + 6, cellY - 7);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("Failed to move button for add-column-after");
|
|
return rv;
|
|
}
|
|
rv = setInlineTableEditButtonPosition(mAddRowBeforeButton,
|
|
cellX - 7, centerOfCellY - 10);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("Failed to move button for add-row-before");
|
|
return rv;
|
|
}
|
|
rv = setInlineTableEditButtonPosition(mRemoveRowButton,
|
|
cellX - 7, centerOfCellY - 4);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("Failed to move button for remove-row");
|
|
return rv;
|
|
}
|
|
rv = setInlineTableEditButtonPosition(mAddRowAfterButton,
|
|
cellX - 7, centerOfCellY + 6);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("Failed to move button for add-row-after");
|
|
return rv;
|
|
}
|
|
// clang-format on
|
|
|
|
return NS_WARN_IF(Destroyed()) ? NS_ERROR_EDITOR_DESTROYED : NS_OK;
|
|
}
|
|
|
|
} // namespace mozilla
|