136 lines
4.1 KiB
C++
136 lines
4.1 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 https://mozilla.org/MPL/2.0/. */
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#include "EditContext.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/dom/CompositionEvent.h"
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#include "mozilla/dom/Element.h"
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#include "nsGenericHTMLElement.h"
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namespace mozilla::dom {
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NS_IMPL_ADDREF_INHERITED(EditContext, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(EditContext, DOMEventTargetHelper)
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NS_IMPL_CYCLE_COLLECTION(EditContext, mAssociatedElement)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(EditContext)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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already_AddRefed<EditContext> EditContext::Constructor(
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const GlobalObject& aGlobal, const EditContextInit& aInit,
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ErrorResult& aRv) {
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
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if (!global) {
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aRv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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RefPtr<EditContext> context = new EditContext(global, aInit);
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return context.forget();
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}
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JSObject* EditContext::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return EditContext_Binding::Wrap(aCx, this, aGivenProto);
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}
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static StaticAutoPtr<nsTHashMap<const Element*, RefPtr<EditContext>>>
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sEditContextHashMap;
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// static
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EditContext* EditContext::GetForElement(const Element& aElement) {
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MOZ_ASSERT(NS_IsMainThread());
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if (!sEditContextHashMap || !aElement.HasFlag(ELEMENT_HAS_EDIT_CONTEXT)) {
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return nullptr;
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}
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auto entry = sEditContextHashMap->Lookup(&aElement);
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MOZ_ASSERT(entry,
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"Should be in hash map if ELEMENT_HAS_EDIT_CONTEXT is set.");
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return entry.Data();
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}
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// static
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void EditContext::SetForElement(const Element& aElement,
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mozilla::dom::EditContext* aEditContext) {
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MOZ_ASSERT(NS_IsMainThread());
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if (!sEditContextHashMap) {
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if (!aEditContext) {
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return;
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}
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sEditContextHashMap = new nsTHashMap<const Element*, RefPtr<EditContext>>;
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ClearOnShutdown(&sEditContextHashMap);
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}
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if (aEditContext) {
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sEditContextHashMap->InsertOrUpdate(&aElement, aEditContext);
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} else {
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sEditContextHashMap->Remove(&aElement);
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}
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}
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void EditContext::Deactivate() {
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// https://w3c.github.io/edit-context/#dfn-deactivate-an-editcontext
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// https://github.com/w3c/edit-context/pull/123
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if (!mIsComposing) {
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return;
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}
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// 1. Set editContext's is composing to false.
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mIsComposing = false;
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// 2. Fire an event named compositionend at editContext using
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// CompositionEvent.
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// TODO
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}
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// static
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bool EditContext::IsAnyAttached() {
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MOZ_ASSERT(NS_IsMainThread());
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return sEditContextHashMap && !sEditContextHashMap->IsEmpty();
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}
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EditContext::EditContext(nsIGlobalObject* aGlobalObject,
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const EditContextInit& aInit)
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: DOMEventTargetHelper(aGlobalObject) {
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UpdateSelection(aInit.mSelectionStart, aInit.mSelectionEnd);
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UpdateText(0, 0, aInit.mText);
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}
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RefPtr<DOMRect> EditContext::ToDOMRect(const Rect& copy) const {
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return MakeRefPtr<DOMRect>(GetRelevantGlobal(), copy.x, copy.y, copy.width,
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copy.height);
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}
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auto EditContext::ToRect(const DOMRect& rect) const -> Rect {
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return Rect(rect.X(), rect.Y(), rect.Width(), rect.Height());
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}
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void EditContext::UpdateCharacterBounds(
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uint32_t aRangeStart,
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const Sequence<OwningNonNull<DOMRect>>& aCharacterBounds) {
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mCodepointRectsStartIndex = aRangeStart;
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mCodepointRects.Clear();
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mCodepointRects.SetCapacity(aCharacterBounds.Length());
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for (const auto& rect : aCharacterBounds) {
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mCodepointRects.AppendElement(ToRect(rect));
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}
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}
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void EditContext::CharacterBounds(nsTArray<RefPtr<DOMRect>>& aRetVal) const {
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aRetVal.SetCapacity(mCodepointRects.Length());
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for (const Rect& rect : mCodepointRects) {
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aRetVal.AppendElement(ToDOMRect(rect));
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}
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}
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void EditContext::UpdateControlBounds(DOMRect& aControlBounds) {
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mControlBounds = ToRect(aControlBounds);
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}
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void EditContext::UpdateSelectionBounds(DOMRect& aSelectionBounds) {
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mSelectionBounds = ToRect(aSelectionBounds);
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}
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} // namespace mozilla::dom
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