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118 lines
3.7 KiB
C++
118 lines
3.7 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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#ifndef mozilla_dom_PopoverData_h
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#define mozilla_dom_PopoverData_h
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#include "Element.h"
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#include "nsINode.h"
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#include "nsIRunnable.h"
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#include "nsIWeakReferenceUtils.h"
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#include "nsStringFwd.h"
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#include "nsThreadUtils.h"
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namespace mozilla::dom {
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class CloseWatcher;
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// https://html.spec.whatwg.org/#attr-popover
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enum class PopoverAttributeState : uint8_t {
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None,
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Auto, ///< https://html.spec.whatwg.org/#attr-popover-auto-state
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Manual, ///< https://html.spec.whatwg.org/#attr-popover-manual-state
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};
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enum class PopoverVisibilityState : uint8_t {
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Hidden,
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Showing,
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};
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class PopoverToggleEventTask : public Runnable {
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public:
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explicit PopoverToggleEventTask(nsWeakPtr aElement,
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PopoverVisibilityState aOldState);
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// MOZ_CAN_RUN_SCRIPT_BOUNDARY until Runnable::Run is MOZ_CAN_RUN_SCRIPT. See
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// bug 1535398.
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MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD Run() override;
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PopoverVisibilityState GetOldState() const { return mOldState; }
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private:
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nsWeakPtr mElement;
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PopoverVisibilityState mOldState;
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};
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class PopoverData {
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public:
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PopoverData() = default;
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~PopoverData() = default;
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CloseWatcher& EnsureCloseWatcher(nsGenericHTMLElement* aElement);
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CloseWatcher* GetCloseWatcher();
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PopoverAttributeState GetPopoverAttributeState() const { return mState; }
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void SetPopoverAttributeState(PopoverAttributeState aState) {
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mState = aState;
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}
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PopoverVisibilityState GetPopoverVisibilityState() const {
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return mVisibilityState;
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}
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void SetPopoverVisibilityState(PopoverVisibilityState aVisibilityState) {
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mVisibilityState = aVisibilityState;
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}
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nsWeakPtr GetPreviouslyFocusedElement() const {
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return mPreviouslyFocusedElement;
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}
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void SetPreviouslyFocusedElement(nsWeakPtr aPreviouslyFocusedElement) {
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mPreviouslyFocusedElement = aPreviouslyFocusedElement;
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}
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RefPtr<Element> GetInvoker() const {
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return do_QueryReferent(mInvokerElement);
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}
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void SetInvoker(Element* aInvokerElement) {
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mInvokerElement =
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do_GetWeakReference(static_cast<nsINode*>(aInvokerElement));
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}
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PopoverToggleEventTask* GetToggleEventTask() const { return mTask; }
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void SetToggleEventTask(PopoverToggleEventTask* aTask) { mTask = aTask; }
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void ClearToggleEventTask() { mTask = nullptr; }
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bool IsShowingOrHiding() const { return mIsShowingOrHiding; }
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void SetIsShowingOrHiding(bool aIsShowingOrHiding) {
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mIsShowingOrHiding = aIsShowingOrHiding;
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}
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private:
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PopoverVisibilityState mVisibilityState = PopoverVisibilityState::Hidden;
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PopoverAttributeState mState = PopoverAttributeState::None;
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// Popover and dialog don't share mPreviouslyFocusedElement for there are
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// chances to lose the previously focused element.
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// See, https://github.com/whatwg/html/issues/9063
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nsWeakPtr mPreviouslyFocusedElement = nullptr;
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// https://html.spec.whatwg.org/#popover-invoker
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// Since having a popover invoker only makes a difference if the invoker
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// is in the document (in another open popover to be precise) we can make
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// this a weak reference, as if the element goes away it's necessarily not
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// connected to our document.
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nsWeakPtr mInvokerElement;
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bool mIsShowingOrHiding = false;
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RefPtr<PopoverToggleEventTask> mTask;
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// This won't need to be cycle collected as CloseWatcher only has strong
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// references to event listeners, which themselves have Weak References back
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// to the Node.
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RefPtr<CloseWatcher> mCloseWatcher;
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};
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} // namespace mozilla::dom
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#endif
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