gecko-dev/layout/xul/PopupBoxObject.cpp

385 строки
11 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsCOMPtr.h"
#include "nsIRootBox.h"
#include "nsIPresShell.h"
#include "nsIContent.h"
#include "nsNameSpaceManager.h"
#include "nsGkAtoms.h"
#include "nsMenuPopupFrame.h"
#include "nsView.h"
#include "mozilla/AppUnits.h"
#include "mozilla/dom/DOMRect.h"
#include "mozilla/dom/PopupBoxObject.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/Event.h"
#include "mozilla/dom/PopupBoxObjectBinding.h"
namespace mozilla {
namespace dom {
NS_IMPL_ADDREF_INHERITED(PopupBoxObject, BoxObject)
NS_IMPL_RELEASE_INHERITED(PopupBoxObject, BoxObject)
NS_INTERFACE_MAP_BEGIN(PopupBoxObject)
NS_INTERFACE_MAP_END_INHERITING(BoxObject)
PopupBoxObject::PopupBoxObject()
{
}
PopupBoxObject::~PopupBoxObject()
{
}
nsIContent* PopupBoxObject::GetParentObject() const
{
return BoxObject::GetParentObject();
}
JSObject* PopupBoxObject::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return PopupBoxObjectBinding::Wrap(aCx, this, aGivenProto);
}
nsPopupSetFrame*
PopupBoxObject::GetPopupSetFrame()
{
nsIRootBox* rootBox = nsIRootBox::GetRootBox(GetPresShell(false));
if (!rootBox)
return nullptr;
return rootBox->GetPopupSetFrame();
}
void
PopupBoxObject::HidePopup(bool aCancel)
{
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm && mContent) {
pm->HidePopup(mContent, false, true, false, aCancel);
}
}
void
PopupBoxObject::ShowPopup(Element* aAnchorElement,
Element& aPopupElement,
int32_t aXPos, int32_t aYPos,
const nsAString& aPopupType,
const nsAString& aAnchorAlignment,
const nsAString& aPopupAlignment)
{
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm && mContent) {
nsCOMPtr<nsIContent> anchorContent(do_QueryInterface(aAnchorElement));
nsAutoString popupType(aPopupType);
nsAutoString anchor(aAnchorAlignment);
nsAutoString align(aPopupAlignment);
pm->ShowPopupWithAnchorAlign(mContent, anchorContent, anchor, align,
aXPos, aYPos,
popupType.EqualsLiteral("context"));
}
}
void
PopupBoxObject::OpenPopup(Element* aAnchorElement,
const nsAString& aPosition,
int32_t aXPos, int32_t aYPos,
bool aIsContextMenu,
bool aAttributesOverride,
Event* aTriggerEvent)
{
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm && mContent) {
nsCOMPtr<nsIContent> anchorContent(do_QueryInterface(aAnchorElement));
pm->ShowPopup(mContent, anchorContent, aPosition, aXPos, aYPos,
aIsContextMenu, aAttributesOverride, false, aTriggerEvent);
}
}
void
PopupBoxObject::OpenPopupAtScreen(int32_t aXPos, int32_t aYPos,
bool aIsContextMenu,
Event* aTriggerEvent)
{
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm && mContent)
pm->ShowPopupAtScreen(mContent, aXPos, aYPos, aIsContextMenu, aTriggerEvent);
}
void
PopupBoxObject::OpenPopupAtScreenRect(const nsAString& aPosition,
int32_t aXPos, int32_t aYPos,
int32_t aWidth, int32_t aHeight,
bool aIsContextMenu,
bool aAttributesOverride,
Event* aTriggerEvent)
{
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm && mContent) {
pm->ShowPopupAtScreenRect(mContent, aPosition,
nsIntRect(aXPos, aYPos, aWidth, aHeight),
aIsContextMenu, aAttributesOverride, aTriggerEvent);
}
}
void
PopupBoxObject::MoveTo(int32_t aLeft, int32_t aTop)
{
nsMenuPopupFrame *menuPopupFrame = mContent ? do_QueryFrame(mContent->GetPrimaryFrame()) : nullptr;
if (menuPopupFrame) {
menuPopupFrame->MoveTo(CSSIntPoint(aLeft, aTop), true);
}
}
void
PopupBoxObject::MoveToAnchor(Element* aAnchorElement,
const nsAString& aPosition,
int32_t aXPos, int32_t aYPos,
bool aAttributesOverride)
{
if (mContent) {
nsCOMPtr<nsIContent> anchorContent(do_QueryInterface(aAnchorElement));
nsMenuPopupFrame *menuPopupFrame = do_QueryFrame(mContent->GetPrimaryFrame());
if (menuPopupFrame && menuPopupFrame->IsVisible()) {
menuPopupFrame->MoveToAnchor(anchorContent, aPosition, aXPos, aYPos, aAttributesOverride);
}
}
}
void
PopupBoxObject::SizeTo(int32_t aWidth, int32_t aHeight)
{
if (!mContent)
return;
nsAutoString width, height;
width.AppendInt(aWidth);
height.AppendInt(aHeight);
nsCOMPtr<nsIContent> content = mContent;
// We only want to pass aNotify=true to SetAttr once, but must make sure
// we pass it when a value is being changed. Thus, we check if the height
// is the same and if so, pass true when setting the width.
bool heightSame = content->AttrValueIs(kNameSpaceID_None, nsGkAtoms::height, height, eCaseMatters);
content->SetAttr(kNameSpaceID_None, nsGkAtoms::width, width, heightSame);
content->SetAttr(kNameSpaceID_None, nsGkAtoms::height, height, true);
}
bool
PopupBoxObject::AutoPosition()
{
nsMenuPopupFrame *menuPopupFrame = mContent ? do_QueryFrame(mContent->GetPrimaryFrame()) : nullptr;
if (menuPopupFrame) {
return menuPopupFrame->GetAutoPosition();
}
return true;
}
void
PopupBoxObject::SetAutoPosition(bool aShouldAutoPosition)
{
nsMenuPopupFrame *menuPopupFrame = mContent ? do_QueryFrame(mContent->GetPrimaryFrame()) : nullptr;
if (menuPopupFrame) {
menuPopupFrame->SetAutoPosition(aShouldAutoPosition);
}
}
void
PopupBoxObject::EnableRollup(bool aShouldRollup)
{
// this does nothing now
}
void
PopupBoxObject::SetConsumeRollupEvent(uint32_t aConsume)
{
nsMenuPopupFrame *menuPopupFrame = do_QueryFrame(GetFrame(false));
if (menuPopupFrame) {
menuPopupFrame->SetConsumeRollupEvent(aConsume);
}
}
void
PopupBoxObject::EnableKeyboardNavigator(bool aEnableKeyboardNavigator)
{
if (!mContent)
return;
// Use ignorekeys="true" on the popup instead of using this function.
if (aEnableKeyboardNavigator)
mContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::ignorekeys, true);
else
mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::ignorekeys,
NS_LITERAL_STRING("true"), true);
}
void
PopupBoxObject::GetPopupState(nsString& aState)
{
// set this here in case there's no frame for the popup
aState.AssignLiteral("closed");
nsMenuPopupFrame *menuPopupFrame = mContent ? do_QueryFrame(mContent->GetPrimaryFrame()) : nullptr;
if (menuPopupFrame) {
switch (menuPopupFrame->PopupState()) {
case ePopupShown:
aState.AssignLiteral("open");
break;
case ePopupShowing:
case ePopupPositioning:
case ePopupOpening:
case ePopupVisible:
aState.AssignLiteral("showing");
break;
case ePopupHiding:
case ePopupInvisible:
aState.AssignLiteral("hiding");
break;
case ePopupClosed:
break;
default:
NS_NOTREACHED("Bad popup state");
break;
}
}
}
nsINode*
PopupBoxObject::GetTriggerNode() const
{
nsMenuPopupFrame *menuPopupFrame = mContent ? do_QueryFrame(mContent->GetPrimaryFrame()) : nullptr;
return nsMenuPopupFrame::GetTriggerContent(menuPopupFrame);
}
Element*
PopupBoxObject::GetAnchorNode() const
{
nsMenuPopupFrame *menuPopupFrame = mContent ? do_QueryFrame(mContent->GetPrimaryFrame()) : nullptr;
if (!menuPopupFrame) {
return nullptr;
}
nsIContent* anchor = menuPopupFrame->GetAnchor();
return anchor && anchor->IsElement() ? anchor->AsElement() : nullptr;
}
already_AddRefed<DOMRect>
PopupBoxObject::GetOuterScreenRect()
{
RefPtr<DOMRect> rect = new DOMRect(mContent);
// Return an empty rectangle if the popup is not open.
nsMenuPopupFrame *menuPopupFrame = do_QueryFrame(GetFrame(false));
if (!menuPopupFrame || !menuPopupFrame->IsOpen()) {
return rect.forget();
}
nsView* view = menuPopupFrame->GetView();
if (view) {
nsIWidget* widget = view->GetWidget();
if (widget) {
LayoutDeviceIntRect screenRect = widget->GetScreenBounds();
int32_t pp = menuPopupFrame->PresContext()->AppUnitsPerDevPixel();
rect->SetLayoutRect(LayoutDeviceIntRect::ToAppUnits(screenRect, pp));
}
}
return rect.forget();
}
void
PopupBoxObject::GetAlignmentPosition(nsString& positionStr)
{
positionStr.Truncate();
// This needs to flush layout.
nsMenuPopupFrame *menuPopupFrame = do_QueryFrame(GetFrame(true));
if (!menuPopupFrame)
return;
int8_t position = menuPopupFrame->GetAlignmentPosition();
switch (position) {
case POPUPPOSITION_AFTERSTART:
positionStr.AssignLiteral("after_start");
break;
case POPUPPOSITION_AFTEREND:
positionStr.AssignLiteral("after_end");
break;
case POPUPPOSITION_BEFORESTART:
positionStr.AssignLiteral("before_start");
break;
case POPUPPOSITION_BEFOREEND:
positionStr.AssignLiteral("before_end");
break;
case POPUPPOSITION_STARTBEFORE:
positionStr.AssignLiteral("start_before");
break;
case POPUPPOSITION_ENDBEFORE:
positionStr.AssignLiteral("end_before");
break;
case POPUPPOSITION_STARTAFTER:
positionStr.AssignLiteral("start_after");
break;
case POPUPPOSITION_ENDAFTER:
positionStr.AssignLiteral("end_after");
break;
case POPUPPOSITION_OVERLAP:
positionStr.AssignLiteral("overlap");
break;
case POPUPPOSITION_AFTERPOINTER:
positionStr.AssignLiteral("after_pointer");
break;
case POPUPPOSITION_SELECTION:
positionStr.AssignLiteral("selection");
break;
default:
// Leave as an empty string.
break;
}
}
int32_t
PopupBoxObject::AlignmentOffset()
{
nsMenuPopupFrame *menuPopupFrame = do_QueryFrame(GetFrame(false));
if (!menuPopupFrame)
return 0;
int32_t pp = mozilla::AppUnitsPerCSSPixel();
// Note that the offset might be along either the X or Y axis, but for the
// sake of simplicity we use a point with only the X axis set so we can
// use ToNearestPixels().
nsPoint appOffset(menuPopupFrame->GetAlignmentOffset(), 0);
nsIntPoint popupOffset = appOffset.ToNearestPixels(pp);
return popupOffset.x;
}
void
PopupBoxObject::SetConstraintRect(dom::DOMRectReadOnly& aRect)
{
nsMenuPopupFrame *menuPopupFrame = do_QueryFrame(GetFrame(false));
if (menuPopupFrame) {
menuPopupFrame->SetOverrideConstraintRect(
LayoutDeviceIntRect::Truncate(aRect.Left(), aRect.Top(), aRect.Width(), aRect.Height()));
}
}
} // namespace dom
} // namespace mozilla
// Creation Routine ///////////////////////////////////////////////////////////////////////
nsresult
NS_NewPopupBoxObject(nsIBoxObject** aResult)
{
*aResult = new mozilla::dom::PopupBoxObject();
NS_ADDREF(*aResult);
return NS_OK;
}