95 lines
3.2 KiB
C++
95 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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 "PopoverData.h"
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#include "nsGenericHTMLElement.h"
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#include "mozilla/dom/Document.h"
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#include "mozilla/dom/CloseWatcher.h"
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#include "mozilla/dom/CloseWatcherManager.h"
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#include "nsIDOMEventListener.h"
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namespace mozilla::dom {
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class PopoverCloseWatcherListener : public nsIDOMEventListener {
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public:
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NS_DECL_ISUPPORTS
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explicit PopoverCloseWatcherListener(nsGenericHTMLElement* aPopover) {
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mPopover = do_GetWeakReference(aPopover);
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};
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NS_IMETHODIMP MOZ_CAN_RUN_SCRIPT HandleEvent(Event* aEvent) override {
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RefPtr<nsINode> node = do_QueryReferent(mPopover);
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if (RefPtr<nsGenericHTMLElement> popover =
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nsGenericHTMLElement::FromNodeOrNull(node)) {
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nsAutoString eventType;
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aEvent->GetType(eventType);
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if (eventType.EqualsLiteral("close")) {
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popover->HidePopover(IgnoreErrors());
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}
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}
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return NS_OK;
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}
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private:
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virtual ~PopoverCloseWatcherListener() = default;
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nsWeakPtr mPopover;
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};
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NS_IMPL_ISUPPORTS(PopoverCloseWatcherListener, nsIDOMEventListener)
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void PopoverData::EnsureCloseWatcher(nsGenericHTMLElement* aElement) {
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if (!mCloseWatcher) {
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RefPtr<Document> doc = aElement->OwnerDoc();
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if (doc->IsActive() && doc->IsCurrentActiveDocument()) {
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if (RefPtr<nsPIDOMWindowInner> window = doc->GetInnerWindow()) {
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mCloseWatcher = new CloseWatcher(window);
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RefPtr<PopoverCloseWatcherListener> eventListener =
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new PopoverCloseWatcherListener(aElement);
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mCloseWatcher->AddSystemEventListener(u"close"_ns, eventListener,
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false /* aUseCapture */,
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false /* aWantsUntrusted */);
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RefPtr manager = window->EnsureCloseWatcherManager();
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MOZ_ASSERT(mCloseWatcher);
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manager->Add(*mCloseWatcher);
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}
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}
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}
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}
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CloseWatcher* PopoverData::GetCloseWatcher() { return mCloseWatcher; }
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// https://html.spec.whatwg.org/#hide-popover-algorithm
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// Step 6.2
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void PopoverData::DestroyCloseWatcher() {
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// 6.2. If element's popover close watcher is not null, then:
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if (mCloseWatcher) {
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// 6.2.1. Destroy element's popover close watcher.
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mCloseWatcher->Destroy();
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// 6.2.2. Set element's popover close watcher to null.
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mCloseWatcher = nullptr;
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}
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};
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PopoverToggleEventTask::PopoverToggleEventTask(nsWeakPtr aElement,
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PopoverVisibilityState aOldState)
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: Runnable("PopoverToggleEventTask"),
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mElement(std::move(aElement)),
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mOldState(aOldState) {}
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NS_IMETHODIMP
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PopoverToggleEventTask::Run() {
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nsCOMPtr<Element> element = do_QueryReferent(mElement);
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if (!element) {
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return NS_OK;
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}
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if (auto* htmlElement = nsGenericHTMLElement::FromNode(element)) {
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MOZ_KnownLive(htmlElement)->RunPopoverToggleEventTask(this, mOldState);
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}
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return NS_OK;
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};
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} // namespace mozilla::dom
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