зеркало из https://github.com/mozilla/gecko-dev.git
296 строки
10 KiB
C++
296 строки
10 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 "nsCOMPtr.h"
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#include "nsIContent.h"
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#include "nsNameSpaceManager.h"
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#include "nsGkAtoms.h"
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#include "nsMenuPopupFrame.h"
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#include "nsView.h"
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#include "mozilla/AppUnits.h"
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#include "mozilla/dom/DOMRect.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/Event.h"
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#include "mozilla/dom/XULPopupElement.h"
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#include "mozilla/dom/XULPopupElementBinding.h"
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namespace mozilla {
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namespace dom {
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nsXULElement* NS_NewXULPopupElement(
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo) {
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return new XULPopupElement(std::move(aNodeInfo));
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}
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JSObject* XULPopupElement::WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return XULPopupElement_Binding::Wrap(aCx, this, aGivenProto);
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}
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void XULPopupElement::OpenPopup(Element* aAnchorElement,
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const StringOrOpenPopupOptions& aOptions,
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int32_t aXPos, int32_t aYPos,
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bool aIsContextMenu, bool aAttributesOverride,
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Event* aTriggerEvent) {
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nsAutoString position;
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if (aOptions.IsOpenPopupOptions()) {
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const OpenPopupOptions& options = aOptions.GetAsOpenPopupOptions();
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position = options.mPosition;
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aXPos = options.mX;
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aYPos = options.mY;
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aIsContextMenu = options.mIsContextMenu;
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aAttributesOverride = options.mAttributesOverride;
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aTriggerEvent = options.mTriggerEvent;
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} else {
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position = aOptions.GetAsString();
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}
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nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
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if (pm) {
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// As a special case for popups that are menus when no anchor or position
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// are specified, open the popup with ShowMenu instead of ShowPopup so that
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// the popup is aligned with the menu.
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if (!aAnchorElement && position.IsEmpty() && GetPrimaryFrame()) {
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nsMenuFrame* menu = do_QueryFrame(GetPrimaryFrame()->GetParent());
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if (menu) {
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pm->ShowMenu(menu->GetContent(), false, false);
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return;
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}
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}
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pm->ShowPopup(this, aAnchorElement, position, aXPos, aYPos, aIsContextMenu,
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aAttributesOverride, false, aTriggerEvent);
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}
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}
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void XULPopupElement::OpenPopupAtScreen(int32_t aXPos, int32_t aYPos,
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bool aIsContextMenu,
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Event* aTriggerEvent) {
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nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
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if (pm) {
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pm->ShowPopupAtScreen(this, aXPos, aYPos, aIsContextMenu, aTriggerEvent);
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}
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}
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void XULPopupElement::OpenPopupAtScreenRect(const nsAString& aPosition,
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int32_t aXPos, int32_t aYPos,
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int32_t aWidth, int32_t aHeight,
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bool aIsContextMenu,
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bool aAttributesOverride,
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Event* aTriggerEvent) {
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nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
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if (pm) {
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pm->ShowPopupAtScreenRect(
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this, aPosition, nsIntRect(aXPos, aYPos, aWidth, aHeight),
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aIsContextMenu, aAttributesOverride, aTriggerEvent);
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}
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}
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void XULPopupElement::HidePopup(bool aCancel) {
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nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
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if (pm) {
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pm->HidePopup(this, false, true, false, aCancel);
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}
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}
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void XULPopupElement::MoveTo(int32_t aLeft, int32_t aTop) {
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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if (menuPopupFrame) {
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menuPopupFrame->MoveTo(CSSIntPoint(aLeft, aTop), true);
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}
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}
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void XULPopupElement::MoveToAnchor(Element* aAnchorElement,
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const nsAString& aPosition, int32_t aXPos,
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int32_t aYPos, bool aAttributesOverride) {
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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if (menuPopupFrame && menuPopupFrame->IsVisible()) {
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menuPopupFrame->MoveToAnchor(aAnchorElement, aPosition, aXPos, aYPos,
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aAttributesOverride);
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}
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}
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void XULPopupElement::SizeTo(int32_t aWidth, int32_t aHeight) {
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nsAutoString width, height;
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width.AppendInt(aWidth);
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height.AppendInt(aHeight);
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nsCOMPtr<nsIContent> kungFuDeathGrip = this; // keep a reference
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// We only want to pass aNotify=true to SetAttr once, but must make sure
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// we pass it when a value is being changed. Thus, we check if the height
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// is the same and if so, pass true when setting the width.
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bool heightSame =
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AttrValueIs(kNameSpaceID_None, nsGkAtoms::height, height, eCaseMatters);
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SetAttr(kNameSpaceID_None, nsGkAtoms::width, width, heightSame);
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SetAttr(kNameSpaceID_None, nsGkAtoms::height, height, true);
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// If the popup is open, force a reposition of the popup after resizing it
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// with notifications set to true so that the popuppositioned event is fired.
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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if (menuPopupFrame && menuPopupFrame->PopupState() == ePopupShown) {
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menuPopupFrame->SetPopupPosition(nullptr, false, false, true);
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}
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}
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bool XULPopupElement::AutoPosition() {
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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if (menuPopupFrame) {
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return menuPopupFrame->GetAutoPosition();
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}
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return true;
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}
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void XULPopupElement::SetAutoPosition(bool aShouldAutoPosition) {
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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if (menuPopupFrame) {
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menuPopupFrame->SetAutoPosition(aShouldAutoPosition);
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}
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}
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void XULPopupElement::GetState(nsString& aState) {
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// set this here in case there's no frame for the popup
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aState.AssignLiteral("closed");
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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if (menuPopupFrame) {
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switch (menuPopupFrame->PopupState()) {
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case ePopupShown:
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aState.AssignLiteral("open");
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break;
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case ePopupShowing:
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case ePopupPositioning:
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case ePopupOpening:
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case ePopupVisible:
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aState.AssignLiteral("showing");
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break;
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case ePopupHiding:
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case ePopupInvisible:
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aState.AssignLiteral("hiding");
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break;
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case ePopupClosed:
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break;
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default:
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MOZ_ASSERT_UNREACHABLE("Bad popup state");
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break;
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}
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}
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}
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nsINode* XULPopupElement::GetTriggerNode() const {
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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return nsMenuPopupFrame::GetTriggerContent(menuPopupFrame);
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}
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// FIXME(emilio): should probably be renamed to GetAnchorElement?
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Element* XULPopupElement::GetAnchorNode() const {
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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if (!menuPopupFrame) {
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return nullptr;
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}
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return Element::FromNodeOrNull(menuPopupFrame->GetAnchor());
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}
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already_AddRefed<DOMRect> XULPopupElement::GetOuterScreenRect() {
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RefPtr<DOMRect> rect = new DOMRect(ToSupports(this));
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// Return an empty rectangle if the popup is not open.
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nsMenuPopupFrame* menuPopupFrame =
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do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
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if (!menuPopupFrame || !menuPopupFrame->IsOpen()) {
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return rect.forget();
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}
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nsView* view = menuPopupFrame->GetView();
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if (view) {
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nsIWidget* widget = view->GetWidget();
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if (widget) {
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LayoutDeviceIntRect screenRect = widget->GetScreenBounds();
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int32_t pp = menuPopupFrame->PresContext()->AppUnitsPerDevPixel();
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rect->SetLayoutRect(LayoutDeviceIntRect::ToAppUnits(screenRect, pp));
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}
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}
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return rect.forget();
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}
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void XULPopupElement::GetAlignmentPosition(nsString& positionStr) {
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positionStr.Truncate();
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// This needs to flush layout.
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nsMenuPopupFrame* menuPopupFrame =
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do_QueryFrame(GetPrimaryFrame(FlushType::Layout));
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if (!menuPopupFrame) return;
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int8_t position = menuPopupFrame->GetAlignmentPosition();
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switch (position) {
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case POPUPPOSITION_AFTERSTART:
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positionStr.AssignLiteral("after_start");
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break;
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case POPUPPOSITION_AFTEREND:
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positionStr.AssignLiteral("after_end");
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break;
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case POPUPPOSITION_BEFORESTART:
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positionStr.AssignLiteral("before_start");
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break;
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case POPUPPOSITION_BEFOREEND:
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positionStr.AssignLiteral("before_end");
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break;
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case POPUPPOSITION_STARTBEFORE:
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positionStr.AssignLiteral("start_before");
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break;
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case POPUPPOSITION_ENDBEFORE:
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positionStr.AssignLiteral("end_before");
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break;
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case POPUPPOSITION_STARTAFTER:
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positionStr.AssignLiteral("start_after");
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break;
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case POPUPPOSITION_ENDAFTER:
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positionStr.AssignLiteral("end_after");
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break;
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case POPUPPOSITION_OVERLAP:
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positionStr.AssignLiteral("overlap");
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break;
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case POPUPPOSITION_AFTERPOINTER:
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positionStr.AssignLiteral("after_pointer");
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break;
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case POPUPPOSITION_SELECTION:
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positionStr.AssignLiteral("selection");
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break;
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default:
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// Leave as an empty string.
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break;
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}
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}
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int32_t XULPopupElement::AlignmentOffset() {
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nsMenuPopupFrame* menuPopupFrame =
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do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
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if (!menuPopupFrame) return 0;
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int32_t pp = mozilla::AppUnitsPerCSSPixel();
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// Note that the offset might be along either the X or Y axis, but for the
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// sake of simplicity we use a point with only the X axis set so we can
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// use ToNearestPixels().
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nsPoint appOffset(menuPopupFrame->GetAlignmentOffset(), 0);
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nsIntPoint popupOffset = appOffset.ToNearestPixels(pp);
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return popupOffset.x;
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}
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void XULPopupElement::SetConstraintRect(dom::DOMRectReadOnly& aRect) {
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nsMenuPopupFrame* menuPopupFrame =
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do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
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if (menuPopupFrame) {
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menuPopupFrame->SetOverrideConstraintRect(LayoutDeviceIntRect::Truncate(
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aRect.Left(), aRect.Top(), aRect.Width(), aRect.Height()));
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}
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}
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} // namespace dom
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} // namespace mozilla
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