зеркало из https://github.com/mozilla/gecko-dev.git
2475 строки
90 KiB
C++
2475 строки
90 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 "nsMenuPopupFrame.h"
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#include "nsGkAtoms.h"
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#include "nsIContent.h"
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#include "nsAtom.h"
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#include "nsPresContext.h"
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#include "mozilla/ComputedStyle.h"
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#include "nsCSSRendering.h"
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#include "nsNameSpaceManager.h"
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#include "nsViewManager.h"
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#include "nsWidgetsCID.h"
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#include "nsMenuFrame.h"
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#include "nsMenuBarFrame.h"
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#include "nsPopupSetFrame.h"
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#include "nsPIDOMWindow.h"
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#include "nsFrameManager.h"
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#include "mozilla/dom/Document.h"
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#include "nsRect.h"
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#include "nsIComponentManager.h"
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#include "nsBoxLayoutState.h"
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#include "nsIScrollableFrame.h"
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#include "nsIPopupContainer.h"
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#include "nsIDocShell.h"
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#include "nsReadableUtils.h"
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#include "nsUnicharUtils.h"
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#include "nsLayoutUtils.h"
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#include "nsContentUtils.h"
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#include "nsCSSFrameConstructor.h"
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#include "nsPIWindowRoot.h"
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#include "nsIReflowCallback.h"
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#include "nsBindingManager.h"
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#include "nsIDocShellTreeOwner.h"
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#include "nsIBaseWindow.h"
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#include "nsISound.h"
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#include "nsIScreenManager.h"
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#include "nsIServiceManager.h"
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#include "nsStyleConsts.h"
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#include "nsTransitionManager.h"
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#include "nsDisplayList.h"
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#include "nsIDOMXULSelectCntrlItemEl.h"
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#include "mozilla/AnimationUtils.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/EventStateManager.h"
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#include "mozilla/EventStates.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/LookAndFeel.h"
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#include "mozilla/MouseEvents.h"
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#include "mozilla/PresShell.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/KeyboardEvent.h"
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#include "mozilla/dom/KeyboardEventBinding.h"
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#include <algorithm>
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using namespace mozilla;
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using mozilla::dom::Document;
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using mozilla::dom::Event;
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using mozilla::dom::KeyboardEvent;
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int8_t nsMenuPopupFrame::sDefaultLevelIsTop = -1;
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DOMTimeStamp nsMenuPopupFrame::sLastKeyTime = 0;
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// XXX, kyle.yuan@sun.com, there are 4 definitions for the same purpose:
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// nsMenuPopupFrame.h, nsListControlFrame.cpp, listbox.xml, tree.xml
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// need to find a good place to put them together.
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// if someone changes one, please also change the other.
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uint32_t nsMenuPopupFrame::sTimeoutOfIncrementalSearch = 1000;
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const char kPrefIncrementalSearchTimeout[] =
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"ui.menu.incremental_search.timeout";
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// NS_NewMenuPopupFrame
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//
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// Wrapper for creating a new menu popup container
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//
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nsIFrame* NS_NewMenuPopupFrame(nsIPresShell* aPresShell,
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ComputedStyle* aStyle) {
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return new (aPresShell)
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nsMenuPopupFrame(aStyle, aPresShell->GetPresContext());
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsMenuPopupFrame)
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NS_QUERYFRAME_HEAD(nsMenuPopupFrame)
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NS_QUERYFRAME_ENTRY(nsMenuPopupFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame)
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//
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// nsMenuPopupFrame ctor
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//
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nsMenuPopupFrame::nsMenuPopupFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext)
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: nsBoxFrame(aStyle, aPresContext, kClassID),
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mCurrentMenu(nullptr),
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mView(nullptr),
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mPrefSize(-1, -1),
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mXPos(0),
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mYPos(0),
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mAlignmentOffset(0),
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mLastClientOffset(0, 0),
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mPopupType(ePopupTypePanel),
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mPopupState(ePopupClosed),
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mPopupAlignment(POPUPALIGNMENT_NONE),
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mPopupAnchor(POPUPALIGNMENT_NONE),
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mPosition(POPUPPOSITION_UNKNOWN),
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mFlip(FlipType_Default),
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mIsOpenChanged(false),
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mIsContextMenu(false),
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mAdjustOffsetForContextMenu(false),
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mGeneratedChildren(false),
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mMenuCanOverlapOSBar(false),
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mShouldAutoPosition(true),
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mInContentShell(true),
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mIsMenuLocked(false),
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mMouseTransparent(false),
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mIsOffset(false),
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mHFlip(false),
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mVFlip(false),
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mPositionedOffset(0),
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mAnchorType(MenuPopupAnchorType_Node) {
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// the preference name is backwards here. True means that the 'top' level is
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// the default, and false means that the 'parent' level is the default.
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if (sDefaultLevelIsTop >= 0) return;
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sDefaultLevelIsTop =
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Preferences::GetBool("ui.panel.default_level_parent", false);
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Preferences::AddUintVarCache(&sTimeoutOfIncrementalSearch,
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kPrefIncrementalSearchTimeout, 1000);
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} // ctor
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void nsMenuPopupFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) {
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nsBoxFrame::Init(aContent, aParent, aPrevInFlow);
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// lookup if we're allowed to overlap the OS bar (menubar/taskbar) from the
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// look&feel object
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mMenuCanOverlapOSBar =
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LookAndFeel::GetInt(LookAndFeel::eIntID_MenusCanOverlapOSBar) != 0;
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CreatePopupView();
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// XXX Hack. The popup's view should float above all other views,
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// so we use the nsView::SetFloating() to tell the view manager
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// about that constraint.
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nsView* ourView = GetView();
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nsViewManager* viewManager = ourView->GetViewManager();
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viewManager->SetViewFloating(ourView, true);
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mPopupType = ePopupTypePanel;
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if (aContent->IsAnyOfXULElements(nsGkAtoms::menupopup, nsGkAtoms::popup)) {
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mPopupType = ePopupTypeMenu;
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} else if (aContent->IsXULElement(nsGkAtoms::tooltip)) {
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mPopupType = ePopupTypeTooltip;
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}
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nsCOMPtr<nsIDocShellTreeItem> dsti = PresContext()->GetDocShell();
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if (dsti && dsti->ItemType() == nsIDocShellTreeItem::typeChrome) {
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mInContentShell = false;
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}
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// To improve performance, create the widget for the popup only if it is not
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// a leaf. Leaf popups such as menus will create their widgets later when
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// the popup opens.
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if (!IsLeaf() && !ourView->HasWidget()) {
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CreateWidgetForView(ourView);
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}
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if (aContent->NodeInfo()->Equals(nsGkAtoms::tooltip, kNameSpaceID_XUL) &&
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aContent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::_default,
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nsGkAtoms::_true, eIgnoreCase)) {
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nsIPopupContainer* popupContainer =
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nsIPopupContainer::GetPopupContainer(PresContext()->GetPresShell());
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if (popupContainer) {
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popupContainer->SetDefaultTooltip(aContent->AsElement());
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}
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}
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AddStateBits(NS_FRAME_IN_POPUP);
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}
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bool nsMenuPopupFrame::HasRemoteContent() const {
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return (!mInContentShell && mPopupType == ePopupTypePanel &&
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mContent->AsElement()->AttrValueIs(kNameSpaceID_None,
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nsGkAtoms::remote,
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nsGkAtoms::_true, eIgnoreCase));
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}
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bool nsMenuPopupFrame::IsNoAutoHide() const {
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// Panels with noautohide="true" don't hide when the mouse is clicked
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// outside of them, or when another application is made active. Non-autohide
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// panels cannot be used in content windows.
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return (!mInContentShell && mPopupType == ePopupTypePanel &&
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mContent->AsElement()->AttrValueIs(kNameSpaceID_None,
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nsGkAtoms::noautohide,
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nsGkAtoms::_true, eIgnoreCase));
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}
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nsPopupLevel nsMenuPopupFrame::PopupLevel(bool aIsNoAutoHide) const {
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// The popup level is determined as follows, in this order:
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// 1. non-panels (menus and tooltips) are always topmost
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// 2. any specified level attribute
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// 3. if a titlebar attribute is set, use the 'floating' level
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// 4. if this is a noautohide panel, use the 'parent' level
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// 5. use the platform-specific default level
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// If this is not a panel, this is always a top-most popup.
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if (mPopupType != ePopupTypePanel) return ePopupLevelTop;
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// If the level attribute has been set, use that.
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static Element::AttrValuesArray strings[] = {
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nsGkAtoms::top, nsGkAtoms::parent, nsGkAtoms::floating, nullptr};
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switch (mContent->AsElement()->FindAttrValueIn(
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kNameSpaceID_None, nsGkAtoms::level, strings, eCaseMatters)) {
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case 0:
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return ePopupLevelTop;
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case 1:
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return ePopupLevelParent;
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case 2:
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return ePopupLevelFloating;
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}
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// Panels with titlebars most likely want to be floating popups.
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if (mContent->AsElement()->HasAttr(kNameSpaceID_None, nsGkAtoms::titlebar))
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return ePopupLevelFloating;
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// If this panel is a noautohide panel, the default is the parent level.
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if (aIsNoAutoHide) return ePopupLevelParent;
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// Otherwise, the result depends on the platform.
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return sDefaultLevelIsTop ? ePopupLevelTop : ePopupLevelParent;
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}
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void nsMenuPopupFrame::EnsureWidget(bool aRecreate) {
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nsView* ourView = GetView();
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if (aRecreate) {
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ourView->DestroyWidget();
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}
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if (!ourView->HasWidget()) {
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NS_ASSERTION(!mGeneratedChildren && !PrincipalChildList().FirstChild(),
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"Creating widget for MenuPopupFrame with children");
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CreateWidgetForView(ourView);
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}
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}
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nsresult nsMenuPopupFrame::CreateWidgetForView(nsView* aView) {
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// Create a widget for ourselves.
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nsWidgetInitData widgetData;
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widgetData.mWindowType = eWindowType_popup;
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widgetData.mBorderStyle = eBorderStyle_default;
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widgetData.clipSiblings = true;
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widgetData.mPopupHint = mPopupType;
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widgetData.mNoAutoHide = IsNoAutoHide();
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if (!mInContentShell) {
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// A drag popup may be used for non-static translucent drag feedback
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if (mPopupType == ePopupTypePanel &&
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mContent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
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nsGkAtoms::drag, eIgnoreCase)) {
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widgetData.mIsDragPopup = true;
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}
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// If mousethrough="always" is set directly on the popup, then the widget
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// should ignore mouse events, passing them through to the content behind.
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mMouseTransparent = GetStateBits() & NS_FRAME_MOUSE_THROUGH_ALWAYS;
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widgetData.mMouseTransparent = mMouseTransparent;
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}
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nsAutoString title;
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if (widgetData.mNoAutoHide) {
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if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None,
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nsGkAtoms::titlebar,
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nsGkAtoms::normal, eCaseMatters)) {
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widgetData.mBorderStyle = eBorderStyle_title;
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mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::label,
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title);
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if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None,
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nsGkAtoms::close, nsGkAtoms::_true,
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eCaseMatters)) {
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widgetData.mBorderStyle = static_cast<enum nsBorderStyle>(
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widgetData.mBorderStyle | eBorderStyle_close);
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}
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}
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}
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bool remote = HasRemoteContent();
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nsTransparencyMode mode = nsLayoutUtils::GetFrameTransparency(this, this);
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nsIContent* parentContent = GetContent()->GetParent();
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nsAtom* tag = nullptr;
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if (parentContent && parentContent->IsXULElement())
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tag = parentContent->NodeInfo()->NameAtom();
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widgetData.mHasRemoteContent = remote;
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widgetData.mSupportTranslucency = mode == eTransparencyTransparent;
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widgetData.mDropShadow =
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!(mode == eTransparencyTransparent || tag == nsGkAtoms::menulist);
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widgetData.mPopupLevel = PopupLevel(widgetData.mNoAutoHide);
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// panels which have a parent level need a parent widget. This allows them to
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// always appear in front of the parent window but behind other windows that
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// should be in front of it.
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nsCOMPtr<nsIWidget> parentWidget;
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if (widgetData.mPopupLevel != ePopupLevelTop) {
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nsCOMPtr<nsIDocShellTreeItem> dsti = PresContext()->GetDocShell();
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if (!dsti) return NS_ERROR_FAILURE;
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nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
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dsti->GetTreeOwner(getter_AddRefs(treeOwner));
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if (!treeOwner) return NS_ERROR_FAILURE;
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nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(treeOwner));
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if (baseWindow) baseWindow->GetMainWidget(getter_AddRefs(parentWidget));
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}
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nsresult rv =
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aView->CreateWidgetForPopup(&widgetData, parentWidget, true, true);
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if (NS_FAILED(rv)) {
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return rv;
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}
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nsIWidget* widget = aView->GetWidget();
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widget->SetTransparencyMode(mode);
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widget->SetWindowShadowStyle(GetShadowStyle());
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// most popups don't have a title so avoid setting the title if there isn't
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// one
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if (!title.IsEmpty()) {
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widget->SetTitle(title);
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}
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return NS_OK;
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}
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uint8_t nsMenuPopupFrame::GetShadowStyle() {
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uint8_t shadow = StyleUIReset()->mWindowShadow;
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if (shadow != NS_STYLE_WINDOW_SHADOW_DEFAULT) return shadow;
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switch (StyleDisplay()->mAppearance) {
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case StyleAppearance::Tooltip:
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return NS_STYLE_WINDOW_SHADOW_TOOLTIP;
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case StyleAppearance::Menupopup:
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return NS_STYLE_WINDOW_SHADOW_MENU;
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default:
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return NS_STYLE_WINDOW_SHADOW_DEFAULT;
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}
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}
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NS_IMETHODIMP nsXULPopupShownEvent::Run() {
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nsMenuPopupFrame* popup = do_QueryFrame(mPopup->GetPrimaryFrame());
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// Set the state to visible if the popup is still open.
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if (popup && popup->IsOpen()) {
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popup->SetPopupState(ePopupShown);
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}
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WidgetMouseEvent event(true, eXULPopupShown, nullptr,
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WidgetMouseEvent::eReal);
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return EventDispatcher::Dispatch(mPopup, mPresContext, &event);
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}
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NS_IMETHODIMP nsXULPopupShownEvent::HandleEvent(Event* aEvent) {
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nsMenuPopupFrame* popup = do_QueryFrame(mPopup->GetPrimaryFrame());
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// Ignore events not targeted at the popup itself (ie targeted at
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// descendants):
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if (mPopup != aEvent->GetTarget()) {
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return NS_OK;
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}
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if (popup) {
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// ResetPopupShownDispatcher will delete the reference to this, so keep
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// another one until Run is finished.
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RefPtr<nsXULPopupShownEvent> event = this;
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// Only call Run if it the dispatcher was assigned. This avoids calling the
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// Run method if the transitionend event fires multiple times.
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if (popup->ClearPopupShownDispatcher()) {
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return Run();
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}
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}
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CancelListener();
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return NS_OK;
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}
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void nsXULPopupShownEvent::CancelListener() {
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mPopup->RemoveSystemEventListener(NS_LITERAL_STRING("transitionend"), this,
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false);
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}
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NS_IMPL_ISUPPORTS_INHERITED(nsXULPopupShownEvent, Runnable,
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nsIDOMEventListener);
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bool nsMenuPopupFrame::IsLeafDynamic() const {
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if (mGeneratedChildren) return false;
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if (mPopupType != ePopupTypeMenu) {
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// any panel with a type attribute, such as the autocomplete popup,
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// is always generated right away.
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return !mContent->AsElement()->HasAttr(kNameSpaceID_None, nsGkAtoms::type);
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}
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// menu popups generate their child frames lazily only when opened, so
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// behave like a leaf frame. However, generate child frames normally if the
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// following is true:
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//
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// - If the parent menu is a <menulist> unless its sizetopopup is set to
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// "none".
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// - For other elements, if the parent menu has a sizetopopup attribute.
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//
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// In these cases the size of the parent menu is dependent on the size of
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// the popup, so the frames need to exist in order to calculate this size.
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nsIContent* parentContent = mContent->GetParent();
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if (!parentContent) {
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return false;
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}
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if (parentContent->IsXULElement(nsGkAtoms::menulist)) {
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Element* parent = parentContent->AsElement();
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if (!parent->HasAttr(kNameSpaceID_None, nsGkAtoms::sizetopopup)) {
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// No prop set, generate child frames normally for the
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// default value ("pref").
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return false;
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}
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nsAutoString sizedToPopup;
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parent->GetAttr(kNameSpaceID_None, nsGkAtoms::sizetopopup, sizedToPopup);
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// Don't generate child frame only if the property is set to none.
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return sizedToPopup.EqualsLiteral("none");
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}
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return (!parentContent->IsElement() ||
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!parentContent->AsElement()->HasAttr(kNameSpaceID_None,
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nsGkAtoms::sizetopopup));
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}
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void nsMenuPopupFrame::UpdateWidgetProperties() {
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if (nsIWidget* widget = GetWidget()) {
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widget->SetWindowOpacity(StyleUIReset()->mWindowOpacity);
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widget->SetWindowTransform(ComputeWidgetTransform());
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}
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}
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void nsMenuPopupFrame::LayoutPopup(nsBoxLayoutState& aState,
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nsIFrame* aParentMenu, nsIFrame* aAnchor,
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bool aSizedToPopup) {
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if (IsLeaf()) {
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return;
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}
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SchedulePaint();
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bool shouldPosition = true;
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bool isOpen = IsOpen();
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if (!isOpen) {
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// if the popup is not open, only do layout while showing or if the menu
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// is sized to the popup
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shouldPosition =
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(mPopupState == ePopupShowing || mPopupState == ePopupPositioning);
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if (!shouldPosition && !aSizedToPopup) {
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RemoveStateBits(NS_FRAME_FIRST_REFLOW);
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return;
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}
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}
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|
|
// if the popup has just been opened, make sure the scrolled window is at 0,0
|
|
// Don't scroll menulists as they will scroll to their selected item on their
|
|
// own.
|
|
if (mIsOpenChanged && !IsMenuList()) {
|
|
nsIScrollableFrame* scrollframe =
|
|
do_QueryFrame(nsBox::GetChildXULBox(this));
|
|
if (scrollframe) {
|
|
AutoWeakFrame weakFrame(this);
|
|
scrollframe->ScrollTo(nsPoint(0, 0), ScrollMode::eInstant);
|
|
if (!weakFrame.IsAlive()) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// get the preferred, minimum and maximum size. If the menu is sized to the
|
|
// popup, then the popup's width is the menu's width.
|
|
nsSize prefSize = GetXULPrefSize(aState);
|
|
nsSize minSize = GetXULMinSize(aState);
|
|
nsSize maxSize = GetXULMaxSize(aState);
|
|
|
|
if (aSizedToPopup) {
|
|
prefSize.width = aParentMenu->GetRect().width;
|
|
}
|
|
prefSize = BoundsCheck(minSize, prefSize, maxSize);
|
|
|
|
// if the size changed then set the bounds to be the preferred size
|
|
bool sizeChanged = (mPrefSize != prefSize);
|
|
if (sizeChanged) {
|
|
SetXULBounds(aState, nsRect(0, 0, prefSize.width, prefSize.height), false);
|
|
mPrefSize = prefSize;
|
|
}
|
|
|
|
bool needCallback = false;
|
|
if (shouldPosition) {
|
|
SetPopupPosition(aAnchor, false, aSizedToPopup,
|
|
mPopupState == ePopupPositioning);
|
|
needCallback = true;
|
|
}
|
|
|
|
nsRect bounds(GetRect());
|
|
XULLayout(aState);
|
|
|
|
// if the width or height changed, readjust the popup position. This is a
|
|
// special case for tooltips where the preferred height doesn't include the
|
|
// real height for its inline element, but does once it is laid out.
|
|
// This is bug 228673 which doesn't have a simple fix.
|
|
bool rePosition = shouldPosition && (mPosition == POPUPPOSITION_SELECTION);
|
|
if (!aParentMenu) {
|
|
nsSize newsize = GetSize();
|
|
if (newsize.width > bounds.width || newsize.height > bounds.height) {
|
|
// the size after layout was larger than the preferred size,
|
|
// so set the preferred size accordingly
|
|
mPrefSize = newsize;
|
|
if (isOpen) {
|
|
rePosition = true;
|
|
needCallback = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (rePosition) {
|
|
SetPopupPosition(aAnchor, false, aSizedToPopup, false);
|
|
}
|
|
|
|
nsPresContext* pc = PresContext();
|
|
nsView* view = GetView();
|
|
|
|
if (sizeChanged) {
|
|
// If the size of the popup changed, apply any size constraints.
|
|
nsIWidget* widget = view->GetWidget();
|
|
if (widget) {
|
|
SetSizeConstraints(pc, widget, minSize, maxSize);
|
|
}
|
|
}
|
|
|
|
if (isOpen) {
|
|
nsViewManager* viewManager = view->GetViewManager();
|
|
nsRect rect = GetRect();
|
|
rect.x = rect.y = 0;
|
|
rect.SizeTo(BoundsCheck(minSize, rect.Size(), maxSize));
|
|
viewManager->ResizeView(view, rect);
|
|
|
|
if (mPopupState == ePopupOpening) {
|
|
mPopupState = ePopupVisible;
|
|
}
|
|
|
|
viewManager->SetViewVisibility(view, nsViewVisibility_kShow);
|
|
SyncFrameViewProperties(view);
|
|
}
|
|
|
|
// finally, if the popup just opened, send a popupshown event
|
|
bool openChanged = mIsOpenChanged;
|
|
if (openChanged) {
|
|
mIsOpenChanged = false;
|
|
|
|
// Make sure the current selection in a menulist is visible.
|
|
if (IsMenuList() && mCurrentMenu) {
|
|
EnsureMenuItemIsVisible(mCurrentMenu);
|
|
}
|
|
|
|
#ifndef MOZ_WIDGET_GTK
|
|
// If the animate attribute is set to open, check for a transition and wait
|
|
// for it to finish before firing the popupshown event.
|
|
if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::animate, nsGkAtoms::open,
|
|
eCaseMatters) &&
|
|
AnimationUtils::HasCurrentTransitions(mContent->AsElement(),
|
|
PseudoStyleType::NotPseudo)) {
|
|
mPopupShownDispatcher = new nsXULPopupShownEvent(mContent, pc);
|
|
mContent->AddSystemEventListener(NS_LITERAL_STRING("transitionend"),
|
|
mPopupShownDispatcher, false, false);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
// If there are no transitions, fire the popupshown event right away.
|
|
nsCOMPtr<nsIRunnable> event = new nsXULPopupShownEvent(GetContent(), pc);
|
|
mContent->OwnerDoc()->Dispatch(TaskCategory::Other, event.forget());
|
|
}
|
|
|
|
if (needCallback && !mReflowCallbackData.mPosted) {
|
|
pc->PresShell()->PostReflowCallback(this);
|
|
mReflowCallbackData.MarkPosted(aAnchor, aSizedToPopup, openChanged);
|
|
}
|
|
}
|
|
|
|
bool nsMenuPopupFrame::ReflowFinished() {
|
|
SetPopupPosition(mReflowCallbackData.mAnchor, false,
|
|
mReflowCallbackData.mSizedToPopup, true);
|
|
|
|
mReflowCallbackData.Clear();
|
|
|
|
return false;
|
|
}
|
|
|
|
void nsMenuPopupFrame::ReflowCallbackCanceled() { mReflowCallbackData.Clear(); }
|
|
|
|
bool nsMenuPopupFrame::IsMenuList() {
|
|
nsIFrame* parentMenu = GetParent();
|
|
return (parentMenu && parentMenu->GetContent() &&
|
|
parentMenu->GetContent()->IsXULElement(nsGkAtoms::menulist));
|
|
}
|
|
|
|
nsIContent* nsMenuPopupFrame::GetTriggerContent(
|
|
nsMenuPopupFrame* aMenuPopupFrame) {
|
|
while (aMenuPopupFrame) {
|
|
if (aMenuPopupFrame->mTriggerContent)
|
|
return aMenuPopupFrame->mTriggerContent;
|
|
|
|
// check up the menu hierarchy until a popup with a trigger node is found
|
|
nsMenuFrame* menuFrame = do_QueryFrame(aMenuPopupFrame->GetParent());
|
|
if (!menuFrame) break;
|
|
|
|
nsMenuParent* parentPopup = menuFrame->GetMenuParent();
|
|
if (!parentPopup || !parentPopup->IsMenu()) break;
|
|
|
|
aMenuPopupFrame = static_cast<nsMenuPopupFrame*>(parentPopup);
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void nsMenuPopupFrame::InitPositionFromAnchorAlign(const nsAString& aAnchor,
|
|
const nsAString& aAlign) {
|
|
mTriggerContent = nullptr;
|
|
|
|
if (aAnchor.EqualsLiteral("topleft"))
|
|
mPopupAnchor = POPUPALIGNMENT_TOPLEFT;
|
|
else if (aAnchor.EqualsLiteral("topright"))
|
|
mPopupAnchor = POPUPALIGNMENT_TOPRIGHT;
|
|
else if (aAnchor.EqualsLiteral("bottomleft"))
|
|
mPopupAnchor = POPUPALIGNMENT_BOTTOMLEFT;
|
|
else if (aAnchor.EqualsLiteral("bottomright"))
|
|
mPopupAnchor = POPUPALIGNMENT_BOTTOMRIGHT;
|
|
else if (aAnchor.EqualsLiteral("leftcenter"))
|
|
mPopupAnchor = POPUPALIGNMENT_LEFTCENTER;
|
|
else if (aAnchor.EqualsLiteral("rightcenter"))
|
|
mPopupAnchor = POPUPALIGNMENT_RIGHTCENTER;
|
|
else if (aAnchor.EqualsLiteral("topcenter"))
|
|
mPopupAnchor = POPUPALIGNMENT_TOPCENTER;
|
|
else if (aAnchor.EqualsLiteral("bottomcenter"))
|
|
mPopupAnchor = POPUPALIGNMENT_BOTTOMCENTER;
|
|
else
|
|
mPopupAnchor = POPUPALIGNMENT_NONE;
|
|
|
|
if (aAlign.EqualsLiteral("topleft"))
|
|
mPopupAlignment = POPUPALIGNMENT_TOPLEFT;
|
|
else if (aAlign.EqualsLiteral("topright"))
|
|
mPopupAlignment = POPUPALIGNMENT_TOPRIGHT;
|
|
else if (aAlign.EqualsLiteral("bottomleft"))
|
|
mPopupAlignment = POPUPALIGNMENT_BOTTOMLEFT;
|
|
else if (aAlign.EqualsLiteral("bottomright"))
|
|
mPopupAlignment = POPUPALIGNMENT_BOTTOMRIGHT;
|
|
else
|
|
mPopupAlignment = POPUPALIGNMENT_NONE;
|
|
|
|
mPosition = POPUPPOSITION_UNKNOWN;
|
|
}
|
|
|
|
void nsMenuPopupFrame::InitializePopup(nsIContent* aAnchorContent,
|
|
nsIContent* aTriggerContent,
|
|
const nsAString& aPosition,
|
|
int32_t aXPos, int32_t aYPos,
|
|
MenuPopupAnchorType aAnchorType,
|
|
bool aAttributesOverride) {
|
|
EnsureWidget();
|
|
|
|
mPopupState = ePopupShowing;
|
|
mAnchorContent = aAnchorContent;
|
|
mTriggerContent = aTriggerContent;
|
|
mXPos = aXPos;
|
|
mYPos = aYPos;
|
|
mAdjustOffsetForContextMenu = false;
|
|
mVFlip = false;
|
|
mHFlip = false;
|
|
mAlignmentOffset = 0;
|
|
mPositionedOffset = 0;
|
|
|
|
mAnchorType = aAnchorType;
|
|
|
|
// if aAttributesOverride is true, then the popupanchor, popupalign and
|
|
// position attributes on the <menupopup> override those values passed in.
|
|
// If false, those attributes are only used if the values passed in are empty
|
|
if (aAnchorContent || aAnchorType == MenuPopupAnchorType_Rect) {
|
|
nsAutoString anchor, align, position, flip;
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::popupanchor,
|
|
anchor);
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::popupalign,
|
|
align);
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::position,
|
|
position);
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::flip, flip);
|
|
|
|
if (aAttributesOverride) {
|
|
// if the attributes are set, clear the offset position. Otherwise,
|
|
// the offset is used to adjust the position from the anchor point
|
|
if (anchor.IsEmpty() && align.IsEmpty() && position.IsEmpty())
|
|
position.Assign(aPosition);
|
|
else
|
|
mXPos = mYPos = 0;
|
|
} else if (!aPosition.IsEmpty()) {
|
|
position.Assign(aPosition);
|
|
}
|
|
|
|
if (flip.EqualsLiteral("none")) {
|
|
mFlip = FlipType_None;
|
|
} else if (flip.EqualsLiteral("both")) {
|
|
mFlip = FlipType_Both;
|
|
} else if (flip.EqualsLiteral("slide")) {
|
|
mFlip = FlipType_Slide;
|
|
}
|
|
|
|
position.CompressWhitespace();
|
|
int32_t spaceIdx = position.FindChar(' ');
|
|
// if there is a space in the position, assume it is the anchor and
|
|
// alignment as two separate tokens.
|
|
if (spaceIdx >= 0) {
|
|
InitPositionFromAnchorAlign(Substring(position, 0, spaceIdx),
|
|
Substring(position, spaceIdx + 1));
|
|
} else if (position.EqualsLiteral("before_start")) {
|
|
mPopupAnchor = POPUPALIGNMENT_TOPLEFT;
|
|
mPopupAlignment = POPUPALIGNMENT_BOTTOMLEFT;
|
|
mPosition = POPUPPOSITION_BEFORESTART;
|
|
} else if (position.EqualsLiteral("before_end")) {
|
|
mPopupAnchor = POPUPALIGNMENT_TOPRIGHT;
|
|
mPopupAlignment = POPUPALIGNMENT_BOTTOMRIGHT;
|
|
mPosition = POPUPPOSITION_BEFOREEND;
|
|
} else if (position.EqualsLiteral("after_start")) {
|
|
mPopupAnchor = POPUPALIGNMENT_BOTTOMLEFT;
|
|
mPopupAlignment = POPUPALIGNMENT_TOPLEFT;
|
|
mPosition = POPUPPOSITION_AFTERSTART;
|
|
} else if (position.EqualsLiteral("after_end")) {
|
|
mPopupAnchor = POPUPALIGNMENT_BOTTOMRIGHT;
|
|
mPopupAlignment = POPUPALIGNMENT_TOPRIGHT;
|
|
mPosition = POPUPPOSITION_AFTEREND;
|
|
} else if (position.EqualsLiteral("start_before")) {
|
|
mPopupAnchor = POPUPALIGNMENT_TOPLEFT;
|
|
mPopupAlignment = POPUPALIGNMENT_TOPRIGHT;
|
|
mPosition = POPUPPOSITION_STARTBEFORE;
|
|
} else if (position.EqualsLiteral("start_after")) {
|
|
mPopupAnchor = POPUPALIGNMENT_BOTTOMLEFT;
|
|
mPopupAlignment = POPUPALIGNMENT_BOTTOMRIGHT;
|
|
mPosition = POPUPPOSITION_STARTAFTER;
|
|
} else if (position.EqualsLiteral("end_before")) {
|
|
mPopupAnchor = POPUPALIGNMENT_TOPRIGHT;
|
|
mPopupAlignment = POPUPALIGNMENT_TOPLEFT;
|
|
mPosition = POPUPPOSITION_ENDBEFORE;
|
|
} else if (position.EqualsLiteral("end_after")) {
|
|
mPopupAnchor = POPUPALIGNMENT_BOTTOMRIGHT;
|
|
mPopupAlignment = POPUPALIGNMENT_BOTTOMLEFT;
|
|
mPosition = POPUPPOSITION_ENDAFTER;
|
|
} else if (position.EqualsLiteral("overlap")) {
|
|
mPopupAnchor = POPUPALIGNMENT_TOPLEFT;
|
|
mPopupAlignment = POPUPALIGNMENT_TOPLEFT;
|
|
mPosition = POPUPPOSITION_OVERLAP;
|
|
} else if (position.EqualsLiteral("after_pointer")) {
|
|
mPopupAnchor = POPUPALIGNMENT_TOPLEFT;
|
|
mPopupAlignment = POPUPALIGNMENT_TOPLEFT;
|
|
mPosition = POPUPPOSITION_AFTERPOINTER;
|
|
// XXXndeakin this is supposed to anchor vertically after, but with the
|
|
// horizontal position as the mouse pointer.
|
|
mYPos += 21;
|
|
} else if (position.EqualsLiteral("selection")) {
|
|
mPopupAnchor = POPUPALIGNMENT_BOTTOMLEFT;
|
|
mPopupAlignment = POPUPALIGNMENT_TOPLEFT;
|
|
mPosition = POPUPPOSITION_SELECTION;
|
|
} else {
|
|
InitPositionFromAnchorAlign(anchor, align);
|
|
}
|
|
}
|
|
|
|
mScreenRect = nsIntRect(-1, -1, 0, 0);
|
|
|
|
if (aAttributesOverride) {
|
|
// Use |left| and |top| dimension attributes to position the popup if
|
|
// present, as they may have been persisted.
|
|
nsAutoString left, top;
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::left, left);
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::top, top);
|
|
|
|
nsresult err;
|
|
if (!left.IsEmpty()) {
|
|
int32_t x = left.ToInteger(&err);
|
|
if (NS_SUCCEEDED(err)) mScreenRect.x = x;
|
|
}
|
|
if (!top.IsEmpty()) {
|
|
int32_t y = top.ToInteger(&err);
|
|
if (NS_SUCCEEDED(err)) mScreenRect.y = y;
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsMenuPopupFrame::InitializePopupAtScreen(nsIContent* aTriggerContent,
|
|
int32_t aXPos, int32_t aYPos,
|
|
bool aIsContextMenu) {
|
|
EnsureWidget();
|
|
|
|
mPopupState = ePopupShowing;
|
|
mAnchorContent = nullptr;
|
|
mTriggerContent = aTriggerContent;
|
|
mScreenRect = nsIntRect(aXPos, aYPos, 0, 0);
|
|
mXPos = 0;
|
|
mYPos = 0;
|
|
mFlip = FlipType_Default;
|
|
mPopupAnchor = POPUPALIGNMENT_NONE;
|
|
mPopupAlignment = POPUPALIGNMENT_NONE;
|
|
mPosition = POPUPPOSITION_UNKNOWN;
|
|
mIsContextMenu = aIsContextMenu;
|
|
mAdjustOffsetForContextMenu = aIsContextMenu;
|
|
mAnchorType = MenuPopupAnchorType_Point;
|
|
mPositionedOffset = 0;
|
|
}
|
|
|
|
void nsMenuPopupFrame::InitializePopupAtRect(nsIContent* aTriggerContent,
|
|
const nsAString& aPosition,
|
|
const nsIntRect& aRect,
|
|
bool aAttributesOverride) {
|
|
InitializePopup(nullptr, aTriggerContent, aPosition, 0, 0,
|
|
MenuPopupAnchorType_Rect, aAttributesOverride);
|
|
mScreenRect = aRect;
|
|
}
|
|
|
|
void nsMenuPopupFrame::ShowPopup(bool aIsContextMenu) {
|
|
mIsContextMenu = aIsContextMenu;
|
|
|
|
InvalidateFrameSubtree();
|
|
|
|
if (mPopupState == ePopupShowing || mPopupState == ePopupPositioning) {
|
|
mPopupState = ePopupOpening;
|
|
mIsOpenChanged = true;
|
|
|
|
// Clear mouse capture when a popup is opened.
|
|
if (mPopupType == ePopupTypeMenu) {
|
|
EventStateManager* activeESM = static_cast<EventStateManager*>(
|
|
EventStateManager::GetActiveEventStateManager());
|
|
if (activeESM) {
|
|
EventStateManager::ClearGlobalActiveContent(activeESM);
|
|
}
|
|
|
|
nsIPresShell::SetCapturingContent(nullptr, 0);
|
|
}
|
|
|
|
nsMenuFrame* menuFrame = do_QueryFrame(GetParent());
|
|
if (menuFrame) {
|
|
AutoWeakFrame weakFrame(this);
|
|
menuFrame->PopupOpened();
|
|
if (!weakFrame.IsAlive()) return;
|
|
}
|
|
|
|
// do we need an actual reflow here?
|
|
// is SetPopupPosition all that is needed?
|
|
PresShell()->FrameNeedsReflow(this, nsIPresShell::eTreeChange,
|
|
NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
|
|
if (mPopupType == ePopupTypeMenu) {
|
|
nsCOMPtr<nsISound> sound(do_CreateInstance("@mozilla.org/sound;1"));
|
|
if (sound) sound->PlayEventSound(nsISound::EVENT_MENU_POPUP);
|
|
}
|
|
}
|
|
|
|
mShouldAutoPosition = true;
|
|
}
|
|
|
|
void nsMenuPopupFrame::HidePopup(bool aDeselectMenu, nsPopupState aNewState) {
|
|
NS_ASSERTION(aNewState == ePopupClosed || aNewState == ePopupInvisible,
|
|
"popup being set to unexpected state");
|
|
|
|
ClearPopupShownDispatcher();
|
|
|
|
// don't hide the popup when it isn't open
|
|
if (mPopupState == ePopupClosed || mPopupState == ePopupShowing ||
|
|
mPopupState == ePopupPositioning)
|
|
return;
|
|
|
|
// clear the trigger content if the popup is being closed. But don't clear
|
|
// it if the popup is just being made invisible as a popuphiding or command
|
|
// event may want to retrieve it.
|
|
if (aNewState == ePopupClosed) {
|
|
// if the popup had a trigger node set, clear the global window popup node
|
|
// as well
|
|
if (mTriggerContent) {
|
|
Document* doc = mContent->GetUncomposedDoc();
|
|
if (doc) {
|
|
if (nsPIDOMWindowOuter* win = doc->GetWindow()) {
|
|
nsCOMPtr<nsPIWindowRoot> root = win->GetTopWindowRoot();
|
|
if (root) {
|
|
root->SetPopupNode(nullptr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
mTriggerContent = nullptr;
|
|
mAnchorContent = nullptr;
|
|
}
|
|
|
|
// when invisible and about to be closed, HidePopup has already been called,
|
|
// so just set the new state to closed and return
|
|
if (mPopupState == ePopupInvisible) {
|
|
if (aNewState == ePopupClosed) mPopupState = ePopupClosed;
|
|
return;
|
|
}
|
|
|
|
mPopupState = aNewState;
|
|
|
|
if (IsMenu()) SetCurrentMenuItem(nullptr);
|
|
|
|
mIncrementalString.Truncate();
|
|
|
|
LockMenuUntilClosed(false);
|
|
|
|
mIsOpenChanged = false;
|
|
mCurrentMenu = nullptr; // make sure no current menu is set
|
|
mHFlip = mVFlip = false;
|
|
|
|
nsView* view = GetView();
|
|
nsViewManager* viewManager = view->GetViewManager();
|
|
viewManager->SetViewVisibility(view, nsViewVisibility_kHide);
|
|
|
|
FireDOMEvent(NS_LITERAL_STRING("DOMMenuInactive"), mContent);
|
|
|
|
// XXX, bug 137033, In Windows, if mouse is outside the window when the
|
|
// menupopup closes, no mouse_enter/mouse_exit event will be fired to clear
|
|
// current hover state, we should clear it manually. This code may not the
|
|
// best solution, but we can leave it here until we find the better approach.
|
|
NS_ASSERTION(mContent->IsElement(), "How do we have a non-element?");
|
|
EventStates state = mContent->AsElement()->State();
|
|
|
|
if (state.HasState(NS_EVENT_STATE_HOVER)) {
|
|
EventStateManager* esm = PresContext()->EventStateManager();
|
|
esm->SetContentState(nullptr, NS_EVENT_STATE_HOVER);
|
|
}
|
|
|
|
nsMenuFrame* menuFrame = do_QueryFrame(GetParent());
|
|
if (menuFrame) {
|
|
menuFrame->PopupClosed(aDeselectMenu);
|
|
}
|
|
}
|
|
|
|
uint32_t nsMenuPopupFrame::GetXULLayoutFlags() {
|
|
return NS_FRAME_NO_SIZE_VIEW | NS_FRAME_NO_MOVE_VIEW | NS_FRAME_NO_VISIBILITY;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// GetRootViewForPopup
|
|
// Retrieves the view for the popup widget that contains the given frame.
|
|
// If the given frame is not contained by a popup widget, return the
|
|
// root view of the root viewmanager.
|
|
nsView* nsMenuPopupFrame::GetRootViewForPopup(nsIFrame* aStartFrame) {
|
|
nsView* view = aStartFrame->GetClosestView();
|
|
NS_ASSERTION(view, "frame must have a closest view!");
|
|
while (view) {
|
|
// Walk up the view hierarchy looking for a view whose widget has a
|
|
// window type of eWindowType_popup - in other words a popup window
|
|
// widget. If we find one, this is the view we want.
|
|
nsIWidget* widget = view->GetWidget();
|
|
if (widget && widget->WindowType() == eWindowType_popup) {
|
|
return view;
|
|
}
|
|
|
|
nsView* temp = view->GetParent();
|
|
if (!temp) {
|
|
// Otherwise, we've walked all the way up to the root view and not
|
|
// found a view for a popup window widget. Just return the root view.
|
|
return view;
|
|
}
|
|
view = temp;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
nsPoint nsMenuPopupFrame::AdjustPositionForAnchorAlign(nsRect& anchorRect,
|
|
FlipStyle& aHFlip,
|
|
FlipStyle& aVFlip) {
|
|
// flip the anchor and alignment for right-to-left
|
|
int8_t popupAnchor(mPopupAnchor);
|
|
int8_t popupAlign(mPopupAlignment);
|
|
if (IsDirectionRTL()) {
|
|
// no need to flip the centered anchor types vertically
|
|
if (popupAnchor <= POPUPALIGNMENT_LEFTCENTER) {
|
|
popupAnchor = -popupAnchor;
|
|
}
|
|
popupAlign = -popupAlign;
|
|
}
|
|
|
|
nsRect originalAnchorRect(anchorRect);
|
|
|
|
// first, determine at which corner of the anchor the popup should appear
|
|
nsPoint pnt;
|
|
switch (popupAnchor) {
|
|
case POPUPALIGNMENT_LEFTCENTER:
|
|
pnt = nsPoint(anchorRect.x, anchorRect.y + anchorRect.height / 2);
|
|
anchorRect.y = pnt.y;
|
|
anchorRect.height = 0;
|
|
break;
|
|
case POPUPALIGNMENT_RIGHTCENTER:
|
|
pnt = nsPoint(anchorRect.XMost(), anchorRect.y + anchorRect.height / 2);
|
|
anchorRect.y = pnt.y;
|
|
anchorRect.height = 0;
|
|
break;
|
|
case POPUPALIGNMENT_TOPCENTER:
|
|
pnt = nsPoint(anchorRect.x + anchorRect.width / 2, anchorRect.y);
|
|
anchorRect.x = pnt.x;
|
|
anchorRect.width = 0;
|
|
break;
|
|
case POPUPALIGNMENT_BOTTOMCENTER:
|
|
pnt = nsPoint(anchorRect.x + anchorRect.width / 2, anchorRect.YMost());
|
|
anchorRect.x = pnt.x;
|
|
anchorRect.width = 0;
|
|
break;
|
|
case POPUPALIGNMENT_TOPRIGHT:
|
|
pnt = anchorRect.TopRight();
|
|
break;
|
|
case POPUPALIGNMENT_BOTTOMLEFT:
|
|
pnt = anchorRect.BottomLeft();
|
|
break;
|
|
case POPUPALIGNMENT_BOTTOMRIGHT:
|
|
pnt = anchorRect.BottomRight();
|
|
break;
|
|
case POPUPALIGNMENT_TOPLEFT:
|
|
default:
|
|
pnt = anchorRect.TopLeft();
|
|
break;
|
|
}
|
|
|
|
// If the alignment is on the right edge of the popup, move the popup left
|
|
// by the width. Similarly, if the alignment is on the bottom edge of the
|
|
// popup, move the popup up by the height. In addition, account for the
|
|
// margins of the popup on the edge on which it is aligned.
|
|
nsMargin margin(0, 0, 0, 0);
|
|
StyleMargin()->GetMargin(margin);
|
|
switch (popupAlign) {
|
|
case POPUPALIGNMENT_TOPRIGHT:
|
|
pnt.MoveBy(-mRect.width - margin.right, margin.top);
|
|
break;
|
|
case POPUPALIGNMENT_BOTTOMLEFT:
|
|
pnt.MoveBy(margin.left, -mRect.height - margin.bottom);
|
|
break;
|
|
case POPUPALIGNMENT_BOTTOMRIGHT:
|
|
pnt.MoveBy(-mRect.width - margin.right, -mRect.height - margin.bottom);
|
|
break;
|
|
case POPUPALIGNMENT_TOPLEFT:
|
|
default:
|
|
pnt.MoveBy(margin.left, margin.top);
|
|
break;
|
|
}
|
|
|
|
// If we aligning to the selected item in the popup, adjust the vertical
|
|
// position by the height of the menulist label and the selected item's
|
|
// position.
|
|
if (mPosition == POPUPPOSITION_SELECTION) {
|
|
MOZ_ASSERT(popupAnchor == POPUPALIGNMENT_BOTTOMLEFT ||
|
|
popupAnchor == POPUPALIGNMENT_BOTTOMRIGHT);
|
|
MOZ_ASSERT(popupAlign == POPUPALIGNMENT_TOPLEFT ||
|
|
popupAlign == POPUPALIGNMENT_TOPRIGHT);
|
|
|
|
// Only adjust the popup if it just opened, otherwise the popup will move
|
|
// around if its gets resized or the selection changed. Cache the value in
|
|
// mPositionedOffset and use that instead for any future calculations.
|
|
if (mIsOpenChanged || mReflowCallbackData.mIsOpenChanged) {
|
|
nsIFrame* selectedItemFrame = GetSelectedItemForAlignment();
|
|
if (selectedItemFrame) {
|
|
int32_t scrolly = 0;
|
|
nsIScrollableFrame* scrollframe = GetScrollFrame(this);
|
|
if (scrollframe) {
|
|
scrolly = scrollframe->GetScrollPosition().y;
|
|
}
|
|
|
|
mPositionedOffset = originalAnchorRect.height +
|
|
selectedItemFrame->GetRect().y - scrolly;
|
|
}
|
|
}
|
|
|
|
pnt.y -= mPositionedOffset;
|
|
}
|
|
|
|
// Flipping horizontally is allowed as long as the popup is above or below
|
|
// the anchor. This will happen if both the anchor and alignment are top or
|
|
// both are bottom, but different values. Similarly, flipping vertically is
|
|
// allowed if the popup is to the left or right of the anchor. In this case,
|
|
// the values of the constants are such that both must be positive or both
|
|
// must be negative. A special case, used for overlap, allows flipping
|
|
// vertically as well.
|
|
// If we are flipping in both directions, we want to set a flip style both
|
|
// horizontally and vertically. However, we want to flip on the inside edge
|
|
// of the anchor. Consider the example of a typical dropdown menu.
|
|
// Vertically, we flip the popup on the outside edges of the anchor menu,
|
|
// however horizontally, we want to to use the inside edges so the popup
|
|
// still appears underneath the anchor menu instead of floating off the
|
|
// side of the menu.
|
|
switch (popupAnchor) {
|
|
case POPUPALIGNMENT_LEFTCENTER:
|
|
case POPUPALIGNMENT_RIGHTCENTER:
|
|
aHFlip = FlipStyle_Outside;
|
|
aVFlip = FlipStyle_Inside;
|
|
break;
|
|
case POPUPALIGNMENT_TOPCENTER:
|
|
case POPUPALIGNMENT_BOTTOMCENTER:
|
|
aHFlip = FlipStyle_Inside;
|
|
aVFlip = FlipStyle_Outside;
|
|
break;
|
|
default: {
|
|
FlipStyle anchorEdge =
|
|
mFlip == FlipType_Both ? FlipStyle_Inside : FlipStyle_None;
|
|
aHFlip = (popupAnchor == -popupAlign) ? FlipStyle_Outside : anchorEdge;
|
|
if (((popupAnchor > 0) == (popupAlign > 0)) ||
|
|
(popupAnchor == POPUPALIGNMENT_TOPLEFT &&
|
|
popupAlign == POPUPALIGNMENT_TOPLEFT))
|
|
aVFlip = FlipStyle_Outside;
|
|
else
|
|
aVFlip = anchorEdge;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return pnt;
|
|
}
|
|
|
|
nsIFrame* nsMenuPopupFrame::GetSelectedItemForAlignment() {
|
|
// This method adjusts a menulist's popup such that the selected item is under
|
|
// the cursor, aligned with the menulist label.
|
|
nsCOMPtr<nsIDOMXULSelectControlElement> select;
|
|
if (mAnchorContent) {
|
|
select = mAnchorContent->AsElement()->AsXULSelectControl();
|
|
}
|
|
|
|
if (!select) {
|
|
// If there isn't an anchor, then try just getting the parent of the popup.
|
|
select = mContent->GetParent()->AsElement()->AsXULSelectControl();
|
|
if (!select) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<Element> selectedElement;
|
|
select->GetSelectedItem(getter_AddRefs(selectedElement));
|
|
return selectedElement ? selectedElement->GetPrimaryFrame() : nullptr;
|
|
}
|
|
|
|
nscoord nsMenuPopupFrame::SlideOrResize(nscoord& aScreenPoint, nscoord aSize,
|
|
nscoord aScreenBegin,
|
|
nscoord aScreenEnd, nscoord* aOffset) {
|
|
// The popup may be positioned such that either the left/top or bottom/right
|
|
// is outside the screen - but never both.
|
|
nscoord newPos =
|
|
std::max(aScreenBegin, std::min(aScreenEnd - aSize, aScreenPoint));
|
|
*aOffset = newPos - aScreenPoint;
|
|
aScreenPoint = newPos;
|
|
return std::min(aSize, aScreenEnd - aScreenPoint);
|
|
}
|
|
|
|
nscoord nsMenuPopupFrame::FlipOrResize(nscoord& aScreenPoint, nscoord aSize,
|
|
nscoord aScreenBegin, nscoord aScreenEnd,
|
|
nscoord aAnchorBegin, nscoord aAnchorEnd,
|
|
nscoord aMarginBegin, nscoord aMarginEnd,
|
|
nscoord aOffsetForContextMenu,
|
|
FlipStyle aFlip, bool aEndAligned,
|
|
bool* aFlipSide) {
|
|
// The flip side argument will be set to true if there wasn't room and we
|
|
// flipped to the opposite side.
|
|
*aFlipSide = false;
|
|
|
|
// all of the coordinates used here are in app units relative to the screen
|
|
nscoord popupSize = aSize;
|
|
if (aScreenPoint < aScreenBegin) {
|
|
// at its current position, the popup would extend past the left or top
|
|
// edge of the screen, so it will have to be moved or resized.
|
|
if (aFlip) {
|
|
// for inside flips, we flip on the opposite side of the anchor
|
|
nscoord startpos = aFlip == FlipStyle_Outside ? aAnchorBegin : aAnchorEnd;
|
|
nscoord endpos = aFlip == FlipStyle_Outside ? aAnchorEnd : aAnchorBegin;
|
|
|
|
// check whether there is more room to the left and right (or top and
|
|
// bottom) of the anchor and put the popup on the side with more room.
|
|
if (startpos - aScreenBegin >= aScreenEnd - endpos) {
|
|
aScreenPoint = aScreenBegin;
|
|
popupSize = startpos - aScreenPoint - aMarginEnd;
|
|
*aFlipSide = !aEndAligned;
|
|
} else {
|
|
// If the newly calculated position is different than the existing
|
|
// position, flip such that the popup is to the right or bottom of the
|
|
// anchor point instead . However, when flipping use the same margin
|
|
// size.
|
|
nscoord newScreenPoint = endpos + aMarginEnd;
|
|
if (newScreenPoint != aScreenPoint) {
|
|
*aFlipSide = aEndAligned;
|
|
aScreenPoint = newScreenPoint;
|
|
// check if the new position is still off the right or bottom edge of
|
|
// the screen. If so, resize the popup.
|
|
if (aScreenPoint + aSize > aScreenEnd) {
|
|
popupSize = aScreenEnd - aScreenPoint;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
aScreenPoint = aScreenBegin;
|
|
}
|
|
} else if (aScreenPoint + aSize > aScreenEnd) {
|
|
// at its current position, the popup would extend past the right or
|
|
// bottom edge of the screen, so it will have to be moved or resized.
|
|
if (aFlip) {
|
|
// for inside flips, we flip on the opposite side of the anchor
|
|
nscoord startpos = aFlip == FlipStyle_Outside ? aAnchorBegin : aAnchorEnd;
|
|
nscoord endpos = aFlip == FlipStyle_Outside ? aAnchorEnd : aAnchorBegin;
|
|
|
|
// check whether there is more room to the left and right (or top and
|
|
// bottom) of the anchor and put the popup on the side with more room.
|
|
if (aScreenEnd - endpos >= startpos - aScreenBegin) {
|
|
*aFlipSide = aEndAligned;
|
|
if (mIsContextMenu) {
|
|
aScreenPoint = aScreenEnd - aSize;
|
|
} else {
|
|
aScreenPoint = endpos + aMarginBegin;
|
|
popupSize = aScreenEnd - aScreenPoint;
|
|
}
|
|
} else {
|
|
// if the newly calculated position is different than the existing
|
|
// position, we flip such that the popup is to the left or top of the
|
|
// anchor point instead.
|
|
nscoord newScreenPoint = startpos - aSize - aMarginBegin -
|
|
std::max(aOffsetForContextMenu, 0);
|
|
if (newScreenPoint != aScreenPoint) {
|
|
*aFlipSide = !aEndAligned;
|
|
aScreenPoint = newScreenPoint;
|
|
|
|
// check if the new position is still off the left or top edge of the
|
|
// screen. If so, resize the popup.
|
|
if (aScreenPoint < aScreenBegin) {
|
|
aScreenPoint = aScreenBegin;
|
|
if (!mIsContextMenu) {
|
|
popupSize = startpos - aScreenPoint - aMarginBegin;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
aScreenPoint = aScreenEnd - aSize;
|
|
}
|
|
}
|
|
|
|
// Make sure that the point is within the screen boundaries and that the
|
|
// size isn't off the edge of the screen. This can happen when a large
|
|
// positive or negative margin is used.
|
|
if (aScreenPoint < aScreenBegin) {
|
|
aScreenPoint = aScreenBegin;
|
|
}
|
|
if (aScreenPoint > aScreenEnd) {
|
|
aScreenPoint = aScreenEnd - aSize;
|
|
}
|
|
|
|
// If popupSize ended up being negative, or the original size was actually
|
|
// smaller than the calculated popup size, just use the original size instead.
|
|
if (popupSize <= 0 || aSize < popupSize) {
|
|
popupSize = aSize;
|
|
}
|
|
|
|
return std::min(popupSize, aScreenEnd - aScreenPoint);
|
|
}
|
|
|
|
nsRect nsMenuPopupFrame::ComputeAnchorRect(nsPresContext* aRootPresContext,
|
|
nsIFrame* aAnchorFrame) {
|
|
// Get the root frame for a reference
|
|
nsIFrame* rootFrame = aRootPresContext->PresShell()->GetRootFrame();
|
|
|
|
// The dimensions of the anchor
|
|
nsRect anchorRect = aAnchorFrame->GetRectRelativeToSelf();
|
|
|
|
// Relative to the root
|
|
anchorRect = nsLayoutUtils::TransformFrameRectToAncestor(
|
|
aAnchorFrame, anchorRect, rootFrame);
|
|
// Relative to the screen
|
|
anchorRect.MoveBy(rootFrame->GetScreenRectInAppUnits().TopLeft());
|
|
|
|
// In its own app units
|
|
return anchorRect.ScaleToOtherAppUnitsRoundOut(
|
|
aRootPresContext->AppUnitsPerDevPixel(),
|
|
PresContext()->AppUnitsPerDevPixel());
|
|
}
|
|
|
|
nsresult nsMenuPopupFrame::SetPopupPosition(nsIFrame* aAnchorFrame,
|
|
bool aIsMove, bool aSizedToPopup,
|
|
bool aNotify) {
|
|
if (!mShouldAutoPosition) return NS_OK;
|
|
|
|
// If this is due to a move, return early if the popup hasn't been laid out
|
|
// yet. On Windows, this can happen when using a drag popup before it opens.
|
|
if (aIsMove && (mPrefSize.width == -1 || mPrefSize.height == -1)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
nsIFrame* rootFrame = presContext->PresShell()->GetRootFrame();
|
|
NS_ASSERTION(rootFrame->GetView() && GetView() &&
|
|
rootFrame->GetView() == GetView()->GetParent(),
|
|
"rootFrame's view is not our view's parent???");
|
|
|
|
// For anchored popups, the anchor rectangle. For non-anchored popups, the
|
|
// size will be 0.
|
|
nsRect anchorRect;
|
|
|
|
// Width of the parent, used when aSizedToPopup is true.
|
|
int32_t parentWidth = 0;
|
|
|
|
bool anchored = IsAnchored();
|
|
if (anchored || aSizedToPopup) {
|
|
// In order to deal with transforms, we need the root prescontext:
|
|
nsPresContext* rootPresContext = presContext->GetRootPresContext();
|
|
|
|
// If we can't reach a root pres context, don't bother continuing:
|
|
if (!rootPresContext) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// If anchored to a rectangle, use that rectangle. Otherwise, determine the
|
|
// rectangle from the anchor.
|
|
if (mAnchorType == MenuPopupAnchorType_Rect) {
|
|
anchorRect = ToAppUnits(mScreenRect, AppUnitsPerCSSPixel());
|
|
} else {
|
|
// if the frame is not specified, use the anchor node passed to OpenPopup.
|
|
// If that wasn't specified either, use the root frame. Note that
|
|
// mAnchorContent might be a different document so its presshell must be
|
|
// used.
|
|
if (!aAnchorFrame) {
|
|
if (mAnchorContent) {
|
|
aAnchorFrame = mAnchorContent->GetPrimaryFrame();
|
|
}
|
|
|
|
if (!aAnchorFrame) {
|
|
aAnchorFrame = rootFrame;
|
|
if (!aAnchorFrame) return NS_OK;
|
|
}
|
|
}
|
|
|
|
anchorRect = ComputeAnchorRect(rootPresContext, aAnchorFrame);
|
|
}
|
|
|
|
// The width is needed when aSizedToPopup is true
|
|
parentWidth = anchorRect.width;
|
|
}
|
|
|
|
// Set the popup's size to the preferred size. Below, this size will be
|
|
// adjusted to fit on the screen or within the content area. If the anchor
|
|
// is sized to the popup, use the anchor's width instead of the preferred
|
|
// width. The preferred size should already be set by the parent frame.
|
|
NS_ASSERTION(mPrefSize.width >= 0 || mPrefSize.height >= 0,
|
|
"preferred size of popup not set");
|
|
mRect.width = aSizedToPopup ? parentWidth : mPrefSize.width;
|
|
mRect.height = mPrefSize.height;
|
|
|
|
// If we're anchoring to a rect, and the rect is smaller than the preferred
|
|
// size of the popup, change its width accordingly.
|
|
if (mAnchorType == MenuPopupAnchorType_Rect &&
|
|
parentWidth < mPrefSize.width) {
|
|
mRect.width = mPrefSize.width;
|
|
}
|
|
|
|
// the screen position in app units where the popup should appear
|
|
nsPoint screenPoint;
|
|
|
|
// indicators of whether the popup should be flipped or resized.
|
|
FlipStyle hFlip = FlipStyle_None, vFlip = FlipStyle_None;
|
|
|
|
nsMargin margin(0, 0, 0, 0);
|
|
StyleMargin()->GetMargin(margin);
|
|
|
|
// the screen rectangle of the root frame, in dev pixels.
|
|
nsRect rootScreenRect = rootFrame->GetScreenRectInAppUnits();
|
|
|
|
nsDeviceContext* devContext = presContext->DeviceContext();
|
|
nsPoint offsetForContextMenu;
|
|
|
|
bool isNoAutoHide = IsNoAutoHide();
|
|
nsPopupLevel popupLevel = PopupLevel(isNoAutoHide);
|
|
|
|
if (anchored) {
|
|
// if we are anchored, there are certain things we don't want to do when
|
|
// repositioning the popup to fit on the screen, such as end up positioned
|
|
// over the anchor, for instance a popup appearing over the menu label.
|
|
// When doing this reposition, we want to move the popup to the side with
|
|
// the most room. The combination of anchor and alignment dictate if we
|
|
// readjust above/below or to the left/right.
|
|
if (mAnchorContent || mAnchorType == MenuPopupAnchorType_Rect) {
|
|
// move the popup according to the anchor and alignment. This will also
|
|
// tell us which axis the popup is flush against in case we have to move
|
|
// it around later. The AdjustPositionForAnchorAlign method accounts for
|
|
// the popup's margin.
|
|
screenPoint = AdjustPositionForAnchorAlign(anchorRect, hFlip, vFlip);
|
|
} else {
|
|
// with no anchor, the popup is positioned relative to the root frame
|
|
anchorRect = rootScreenRect;
|
|
screenPoint = anchorRect.TopLeft() + nsPoint(margin.left, margin.top);
|
|
}
|
|
|
|
// mXPos and mYPos specify an additonal offset passed to OpenPopup that
|
|
// should be added to the position. We also add the offset to the anchor
|
|
// pos so a later flip/resize takes the offset into account.
|
|
nscoord anchorXOffset = nsPresContext::CSSPixelsToAppUnits(mXPos);
|
|
if (IsDirectionRTL()) {
|
|
screenPoint.x -= anchorXOffset;
|
|
anchorRect.x -= anchorXOffset;
|
|
} else {
|
|
screenPoint.x += anchorXOffset;
|
|
anchorRect.x += anchorXOffset;
|
|
}
|
|
nscoord anchorYOffset = nsPresContext::CSSPixelsToAppUnits(mYPos);
|
|
screenPoint.y += anchorYOffset;
|
|
anchorRect.y += anchorYOffset;
|
|
|
|
// If this is a noautohide popup, set the screen coordinates of the popup.
|
|
// This way, the popup stays at the location where it was opened even when
|
|
// the window is moved. Popups at the parent level follow the parent
|
|
// window as it is moved and remained anchored, so we want to maintain the
|
|
// anchoring instead.
|
|
if (isNoAutoHide && (popupLevel != ePopupLevelParent ||
|
|
mAnchorType == MenuPopupAnchorType_Rect)) {
|
|
// Account for the margin that will end up being added to the screen
|
|
// coordinate the next time SetPopupPosition is called.
|
|
mAnchorType = MenuPopupAnchorType_Point;
|
|
mScreenRect.x =
|
|
nsPresContext::AppUnitsToIntCSSPixels(screenPoint.x - margin.left);
|
|
mScreenRect.y =
|
|
nsPresContext::AppUnitsToIntCSSPixels(screenPoint.y - margin.top);
|
|
}
|
|
} else {
|
|
// The popup is positioned at a screen coordinate.
|
|
// First convert the screen position in mScreenRect from CSS pixels into
|
|
// device pixels, ignoring any zoom as mScreenRect holds unzoomed screen
|
|
// coordinates.
|
|
int32_t factor = devContext->AppUnitsPerDevPixelAtUnitFullZoom();
|
|
|
|
// Depending on the platform, context menus should be offset by varying
|
|
// amounts to ensure that they don't appear directly where the cursor is.
|
|
// Otherwise, it is too easy to have the context menu close up again.
|
|
if (mAdjustOffsetForContextMenu) {
|
|
nsPoint offsetForContextMenuDev;
|
|
offsetForContextMenuDev.x =
|
|
nsPresContext::CSSPixelsToAppUnits(LookAndFeel::GetInt(
|
|
LookAndFeel::eIntID_ContextMenuOffsetHorizontal)) /
|
|
factor;
|
|
offsetForContextMenuDev.y =
|
|
nsPresContext::CSSPixelsToAppUnits(LookAndFeel::GetInt(
|
|
LookAndFeel::eIntID_ContextMenuOffsetVertical)) /
|
|
factor;
|
|
offsetForContextMenu.x =
|
|
presContext->DevPixelsToAppUnits(offsetForContextMenuDev.x);
|
|
offsetForContextMenu.y =
|
|
presContext->DevPixelsToAppUnits(offsetForContextMenuDev.y);
|
|
}
|
|
|
|
// next, convert into app units accounting for the zoom
|
|
screenPoint.x = presContext->DevPixelsToAppUnits(
|
|
nsPresContext::CSSPixelsToAppUnits(mScreenRect.x) / factor);
|
|
screenPoint.y = presContext->DevPixelsToAppUnits(
|
|
nsPresContext::CSSPixelsToAppUnits(mScreenRect.y) / factor);
|
|
anchorRect = nsRect(screenPoint, nsSize(0, 0));
|
|
|
|
// add the margins on the popup
|
|
screenPoint.MoveBy(margin.left + offsetForContextMenu.x,
|
|
margin.top + offsetForContextMenu.y);
|
|
|
|
#ifdef XP_MACOSX
|
|
// OSX tooltips follow standard flip rule but other popups flip horizontally
|
|
// not vertically
|
|
if (mPopupType == ePopupTypeTooltip) {
|
|
vFlip = FlipStyle_Outside;
|
|
} else {
|
|
hFlip = FlipStyle_Outside;
|
|
}
|
|
#else
|
|
// Other OS screen positioned popups can be flipped vertically but never
|
|
// horizontally
|
|
vFlip = FlipStyle_Outside;
|
|
#endif // #ifdef XP_MACOSX
|
|
}
|
|
|
|
nscoord oldAlignmentOffset = mAlignmentOffset;
|
|
|
|
// If a panel is being moved or has flip="none", don't constrain or flip it,
|
|
// in order to avoid visual noise when moving windows between screens.
|
|
// However, if a panel is already constrained or flipped (mIsOffset), then we
|
|
// want to continue to calculate this. Also, always do this for content
|
|
// shells, so that the popup doesn't extend outside the containing frame.
|
|
if (mInContentShell ||
|
|
(mFlip != FlipType_None &&
|
|
(!aIsMove || mIsOffset || mPopupType != ePopupTypePanel))) {
|
|
int32_t appPerDev = presContext->AppUnitsPerDevPixel();
|
|
LayoutDeviceIntRect anchorRectDevPix =
|
|
LayoutDeviceIntRect::FromAppUnitsToNearest(anchorRect, appPerDev);
|
|
LayoutDeviceIntRect rootScreenRectDevPix =
|
|
LayoutDeviceIntRect::FromAppUnitsToNearest(rootScreenRect, appPerDev);
|
|
LayoutDeviceIntRect screenRectDevPix =
|
|
GetConstraintRect(anchorRectDevPix, rootScreenRectDevPix, popupLevel);
|
|
nsRect screenRect =
|
|
LayoutDeviceIntRect::ToAppUnits(screenRectDevPix, appPerDev);
|
|
|
|
// Ensure that anchorRect is on screen.
|
|
anchorRect = anchorRect.Intersect(screenRect);
|
|
|
|
// shrink the the popup down if it is larger than the screen size
|
|
if (mRect.width > screenRect.width) mRect.width = screenRect.width;
|
|
if (mRect.height > screenRect.height) mRect.height = screenRect.height;
|
|
|
|
// at this point the anchor (anchorRect) is within the available screen
|
|
// area (screenRect) and the popup is known to be no larger than the screen.
|
|
|
|
// We might want to "slide" an arrow if the panel is of the correct type -
|
|
// but we can only slide on one axis - the other axis must be "flipped or
|
|
// resized" as normal.
|
|
bool slideHorizontal = false, slideVertical = false;
|
|
if (mFlip == FlipType_Slide) {
|
|
int8_t position = GetAlignmentPosition();
|
|
slideHorizontal = position >= POPUPPOSITION_BEFORESTART &&
|
|
position <= POPUPPOSITION_AFTEREND;
|
|
slideVertical = position >= POPUPPOSITION_STARTBEFORE &&
|
|
position <= POPUPPOSITION_ENDAFTER;
|
|
}
|
|
|
|
// Next, check if there is enough space to show the popup at full size when
|
|
// positioned at screenPoint. If not, flip the popups to the opposite side
|
|
// of their anchor point, or resize them as necessary.
|
|
bool endAligned = IsDirectionRTL()
|
|
? mPopupAlignment == POPUPALIGNMENT_TOPLEFT ||
|
|
mPopupAlignment == POPUPALIGNMENT_BOTTOMLEFT
|
|
: mPopupAlignment == POPUPALIGNMENT_TOPRIGHT ||
|
|
mPopupAlignment == POPUPALIGNMENT_BOTTOMRIGHT;
|
|
nscoord preOffsetScreenPoint = screenPoint.x;
|
|
if (slideHorizontal) {
|
|
mRect.width = SlideOrResize(screenPoint.x, mRect.width, screenRect.x,
|
|
screenRect.XMost(), &mAlignmentOffset);
|
|
} else {
|
|
mRect.width = FlipOrResize(
|
|
screenPoint.x, mRect.width, screenRect.x, screenRect.XMost(),
|
|
anchorRect.x, anchorRect.XMost(), margin.left, margin.right,
|
|
offsetForContextMenu.x, hFlip, endAligned, &mHFlip);
|
|
}
|
|
mIsOffset = preOffsetScreenPoint != screenPoint.x;
|
|
|
|
endAligned = mPopupAlignment == POPUPALIGNMENT_BOTTOMLEFT ||
|
|
mPopupAlignment == POPUPALIGNMENT_BOTTOMRIGHT;
|
|
preOffsetScreenPoint = screenPoint.y;
|
|
if (slideVertical) {
|
|
mRect.height = SlideOrResize(screenPoint.y, mRect.height, screenRect.y,
|
|
screenRect.YMost(), &mAlignmentOffset);
|
|
} else {
|
|
mRect.height = FlipOrResize(
|
|
screenPoint.y, mRect.height, screenRect.y, screenRect.YMost(),
|
|
anchorRect.y, anchorRect.YMost(), margin.top, margin.bottom,
|
|
offsetForContextMenu.y, vFlip, endAligned, &mVFlip);
|
|
}
|
|
mIsOffset = mIsOffset || (preOffsetScreenPoint != screenPoint.y);
|
|
|
|
NS_ASSERTION(screenPoint.x >= screenRect.x &&
|
|
screenPoint.y >= screenRect.y &&
|
|
screenPoint.x + mRect.width <= screenRect.XMost() &&
|
|
screenPoint.y + mRect.height <= screenRect.YMost(),
|
|
"Popup is offscreen");
|
|
}
|
|
|
|
// snap the popup's position in screen coordinates to device pixels,
|
|
// see bug 622507, bug 961431
|
|
screenPoint.x = presContext->RoundAppUnitsToNearestDevPixels(screenPoint.x);
|
|
screenPoint.y = presContext->RoundAppUnitsToNearestDevPixels(screenPoint.y);
|
|
|
|
// determine the x and y position of the view by subtracting the desired
|
|
// screen position from the screen position of the root frame.
|
|
nsPoint viewPoint = screenPoint - rootScreenRect.TopLeft();
|
|
|
|
nsView* view = GetView();
|
|
NS_ASSERTION(view, "popup with no view");
|
|
|
|
// Offset the position by the width and height of the borders and titlebar.
|
|
// Even though GetClientOffset should return (0, 0) when there is no
|
|
// titlebar or borders, we skip these calculations anyway for non-panels
|
|
// to save time since they will never have a titlebar.
|
|
nsIWidget* widget = view->GetWidget();
|
|
if (mPopupType == ePopupTypePanel && widget) {
|
|
mLastClientOffset = widget->GetClientOffset();
|
|
viewPoint.x += presContext->DevPixelsToAppUnits(mLastClientOffset.x);
|
|
viewPoint.y += presContext->DevPixelsToAppUnits(mLastClientOffset.y);
|
|
}
|
|
|
|
presContext->GetPresShell()->GetViewManager()->MoveViewTo(view, viewPoint.x,
|
|
viewPoint.y);
|
|
|
|
// Now that we've positioned the view, sync up the frame's origin.
|
|
nsBoxFrame::SetPosition(viewPoint - GetParent()->GetOffsetTo(rootFrame));
|
|
|
|
if (aSizedToPopup) {
|
|
nsBoxLayoutState state(PresContext());
|
|
// XXXndeakin can parentSize.width still extend outside?
|
|
SetXULBounds(state, mRect);
|
|
}
|
|
|
|
// If the popup is in the positioned state or if it is shown and the position
|
|
// or size changed, dispatch a popuppositioned event if the popup wants it.
|
|
nsIntRect newRect(screenPoint.x, screenPoint.y, mRect.width, mRect.height);
|
|
if (mPopupState == ePopupPositioning ||
|
|
(mPopupState == ePopupShown && !newRect.IsEqualEdges(mUsedScreenRect)) ||
|
|
(mPopupState == ePopupShown && oldAlignmentOffset != mAlignmentOffset)) {
|
|
mUsedScreenRect = newRect;
|
|
if (aNotify) {
|
|
nsXULPopupPositionedEvent::DispatchIfNeeded(mContent, false, false);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsMenuPopupFrame::GenerateFrames() {
|
|
const bool generateFrames = IsLeaf();
|
|
MOZ_ASSERT_IF(generateFrames, !mGeneratedChildren);
|
|
mGeneratedChildren = true;
|
|
if (generateFrames) {
|
|
MOZ_ASSERT(PrincipalChildList().IsEmpty());
|
|
RefPtr<mozilla::PresShell> presShell = PresContext()->PresShell();
|
|
presShell->FrameConstructor()->GenerateChildFrames(this);
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
nsMenuFrame* nsMenuPopupFrame::GetCurrentMenuItem() { return mCurrentMenu; }
|
|
|
|
LayoutDeviceIntRect nsMenuPopupFrame::GetConstraintRect(
|
|
const LayoutDeviceIntRect& aAnchorRect,
|
|
const LayoutDeviceIntRect& aRootScreenRect, nsPopupLevel aPopupLevel) {
|
|
LayoutDeviceIntRect screenRectPixels;
|
|
|
|
// determine the available screen space. It will be reduced by the OS chrome
|
|
// such as menubars. It addition, for content shells, it will be the area of
|
|
// the content rather than the screen.
|
|
nsCOMPtr<nsIScreen> screen;
|
|
nsCOMPtr<nsIScreenManager> sm(
|
|
do_GetService("@mozilla.org/gfx/screenmanager;1"));
|
|
if (sm) {
|
|
// for content shells, get the screen where the root frame is located.
|
|
// This is because we need to constrain the content to this content area,
|
|
// so we should use the same screen. Otherwise, use the screen where the
|
|
// anchor is located.
|
|
DesktopToLayoutDeviceScale scale =
|
|
PresContext()->DeviceContext()->GetDesktopToDeviceScale();
|
|
DesktopRect rect =
|
|
(mInContentShell ? aRootScreenRect : aAnchorRect) / scale;
|
|
int32_t width = std::max(1, NSToIntRound(rect.width));
|
|
int32_t height = std::max(1, NSToIntRound(rect.height));
|
|
sm->ScreenForRect(rect.x, rect.y, width, height, getter_AddRefs(screen));
|
|
if (screen) {
|
|
// Non-top-level popups (which will always be panels)
|
|
// should never overlap the OS bar:
|
|
bool dontOverlapOSBar = aPopupLevel != ePopupLevelTop;
|
|
// get the total screen area if the popup is allowed to overlap it.
|
|
if (!dontOverlapOSBar && mMenuCanOverlapOSBar && !mInContentShell)
|
|
screen->GetRect(&screenRectPixels.x, &screenRectPixels.y,
|
|
&screenRectPixels.width, &screenRectPixels.height);
|
|
else
|
|
screen->GetAvailRect(&screenRectPixels.x, &screenRectPixels.y,
|
|
&screenRectPixels.width, &screenRectPixels.height);
|
|
}
|
|
}
|
|
|
|
if (mInContentShell) {
|
|
// for content shells, clip to the client area rather than the screen area
|
|
screenRectPixels.IntersectRect(screenRectPixels, aRootScreenRect);
|
|
} else if (!mOverrideConstraintRect.IsEmpty()) {
|
|
LayoutDeviceIntRect overrideConstrainRect =
|
|
LayoutDeviceIntRect::FromAppUnitsToNearest(
|
|
mOverrideConstraintRect, PresContext()->AppUnitsPerDevPixel());
|
|
// This is currently only used for <select> elements where we want to
|
|
// constrain vertically to the screen but not horizontally, so do the
|
|
// intersection and then reset the horizontal values.
|
|
screenRectPixels.IntersectRect(screenRectPixels, overrideConstrainRect);
|
|
screenRectPixels.x = overrideConstrainRect.x;
|
|
screenRectPixels.width = overrideConstrainRect.width;
|
|
}
|
|
|
|
return screenRectPixels;
|
|
}
|
|
|
|
void nsMenuPopupFrame::CanAdjustEdges(Side aHorizontalSide, Side aVerticalSide,
|
|
LayoutDeviceIntPoint& aChange) {
|
|
int8_t popupAlign(mPopupAlignment);
|
|
if (IsDirectionRTL()) {
|
|
popupAlign = -popupAlign;
|
|
}
|
|
|
|
if (aHorizontalSide == (mHFlip ? eSideRight : eSideLeft)) {
|
|
if (popupAlign == POPUPALIGNMENT_TOPLEFT ||
|
|
popupAlign == POPUPALIGNMENT_BOTTOMLEFT) {
|
|
aChange.x = 0;
|
|
}
|
|
} else if (aHorizontalSide == (mHFlip ? eSideLeft : eSideRight)) {
|
|
if (popupAlign == POPUPALIGNMENT_TOPRIGHT ||
|
|
popupAlign == POPUPALIGNMENT_BOTTOMRIGHT) {
|
|
aChange.x = 0;
|
|
}
|
|
}
|
|
|
|
if (aVerticalSide == (mVFlip ? eSideBottom : eSideTop)) {
|
|
if (popupAlign == POPUPALIGNMENT_TOPLEFT ||
|
|
popupAlign == POPUPALIGNMENT_TOPRIGHT) {
|
|
aChange.y = 0;
|
|
}
|
|
} else if (aVerticalSide == (mVFlip ? eSideTop : eSideBottom)) {
|
|
if (popupAlign == POPUPALIGNMENT_BOTTOMLEFT ||
|
|
popupAlign == POPUPALIGNMENT_BOTTOMRIGHT) {
|
|
aChange.y = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
ConsumeOutsideClicksResult nsMenuPopupFrame::ConsumeOutsideClicks() {
|
|
if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::consumeoutsideclicks,
|
|
nsGkAtoms::_true, eCaseMatters)) {
|
|
return ConsumeOutsideClicks_True;
|
|
}
|
|
if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::consumeoutsideclicks,
|
|
nsGkAtoms::_false, eCaseMatters)) {
|
|
return ConsumeOutsideClicks_ParentOnly;
|
|
}
|
|
if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::consumeoutsideclicks,
|
|
nsGkAtoms::never, eCaseMatters)) {
|
|
return ConsumeOutsideClicks_Never;
|
|
}
|
|
|
|
nsCOMPtr<nsIContent> parentContent = mContent->GetParent();
|
|
if (parentContent) {
|
|
dom::NodeInfo* ni = parentContent->NodeInfo();
|
|
if (ni->Equals(nsGkAtoms::menulist, kNameSpaceID_XUL)) {
|
|
return ConsumeOutsideClicks_True; // Consume outside clicks for combo
|
|
// boxes on all platforms
|
|
}
|
|
#if defined(XP_WIN)
|
|
// Don't consume outside clicks for menus in Windows
|
|
if (ni->Equals(nsGkAtoms::menu, kNameSpaceID_XUL) ||
|
|
ni->Equals(nsGkAtoms::popupset, kNameSpaceID_XUL) ||
|
|
((ni->Equals(nsGkAtoms::button, kNameSpaceID_XUL) ||
|
|
ni->Equals(nsGkAtoms::toolbarbutton, kNameSpaceID_XUL)) &&
|
|
parentContent->AsElement()->AttrValueIs(
|
|
kNameSpaceID_None, nsGkAtoms::type, nsGkAtoms::menu,
|
|
eCaseMatters))) {
|
|
return ConsumeOutsideClicks_Never;
|
|
}
|
|
#endif
|
|
if (ni->Equals(nsGkAtoms::textbox, kNameSpaceID_XUL)) {
|
|
// Don't consume outside clicks for autocomplete widget
|
|
if (parentContent->AsElement()->AttrValueIs(
|
|
kNameSpaceID_None, nsGkAtoms::type, nsGkAtoms::autocomplete,
|
|
eCaseMatters)) {
|
|
return ConsumeOutsideClicks_Never;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ConsumeOutsideClicks_True;
|
|
}
|
|
|
|
// XXXroc this is megalame. Fossicking around for a frame of the right
|
|
// type is a recipe for disaster in the long term.
|
|
nsIScrollableFrame* nsMenuPopupFrame::GetScrollFrame(nsIFrame* aStart) {
|
|
if (!aStart) return nullptr;
|
|
|
|
// try start frame and siblings
|
|
nsIFrame* currFrame = aStart;
|
|
do {
|
|
nsIScrollableFrame* sf = do_QueryFrame(currFrame);
|
|
if (sf) return sf;
|
|
currFrame = currFrame->GetNextSibling();
|
|
} while (currFrame);
|
|
|
|
// try children
|
|
currFrame = aStart;
|
|
do {
|
|
nsIFrame* childFrame = currFrame->PrincipalChildList().FirstChild();
|
|
nsIScrollableFrame* sf = GetScrollFrame(childFrame);
|
|
if (sf) return sf;
|
|
currFrame = currFrame->GetNextSibling();
|
|
} while (currFrame);
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void nsMenuPopupFrame::EnsureMenuItemIsVisible(nsMenuFrame* aMenuItem) {
|
|
if (aMenuItem) {
|
|
aMenuItem->PresShell()->ScrollFrameRectIntoView(
|
|
aMenuItem, nsRect(nsPoint(0, 0), aMenuItem->GetRect().Size()),
|
|
nsIPresShell::ScrollAxis(), nsIPresShell::ScrollAxis(),
|
|
nsIPresShell::SCROLL_OVERFLOW_HIDDEN |
|
|
nsIPresShell::SCROLL_FIRST_ANCESTOR_ONLY);
|
|
}
|
|
}
|
|
|
|
void nsMenuPopupFrame::ChangeByPage(bool aIsUp) {
|
|
// Only scroll by page within menulists.
|
|
if (!IsMenuList()) {
|
|
return;
|
|
}
|
|
|
|
nsMenuFrame* newMenu = nullptr;
|
|
nsIFrame* currentMenu = mCurrentMenu;
|
|
if (!currentMenu) {
|
|
// If there is no current menu item, get the first item. When moving up,
|
|
// just use this as the newMenu and leave currentMenu null so that no
|
|
// check for a later element is performed. When moving down, set currentMenu
|
|
// so that we look for one page down from the first item.
|
|
newMenu = nsXULPopupManager::GetNextMenuItem(this, nullptr, true, false);
|
|
if (!aIsUp) {
|
|
currentMenu = newMenu;
|
|
}
|
|
}
|
|
|
|
if (currentMenu) {
|
|
nscoord scrollHeight = mRect.height;
|
|
nsIScrollableFrame* scrollframe = GetScrollFrame(this);
|
|
if (scrollframe) {
|
|
scrollHeight = scrollframe->GetScrollPortRect().height;
|
|
}
|
|
|
|
// Get the position of the current item and add or subtract one popup's
|
|
// height to or from it.
|
|
nscoord targetPosition = aIsUp
|
|
? currentMenu->GetRect().YMost() - scrollHeight
|
|
: currentMenu->GetRect().y + scrollHeight;
|
|
|
|
// Indicates that the last visible child was a valid menuitem.
|
|
bool lastWasValid = false;
|
|
|
|
// Look for the next child which is just past the target position. This
|
|
// child will need to be selected.
|
|
while (currentMenu) {
|
|
// Only consider menu frames.
|
|
nsMenuFrame* menuFrame = do_QueryFrame(currentMenu);
|
|
if (menuFrame &&
|
|
nsXULPopupManager::IsValidMenuItem(menuFrame->GetContent(), true)) {
|
|
// If the right position was found, break out. Otherwise, look for
|
|
// another item.
|
|
if ((!aIsUp && currentMenu->GetRect().YMost() > targetPosition) ||
|
|
(aIsUp && currentMenu->GetRect().y < targetPosition)) {
|
|
// If the last visible child was not a valid menuitem or was disabled,
|
|
// use this as the menu to select, skipping over any non-valid items
|
|
// at the edge of the page.
|
|
if (!lastWasValid) {
|
|
newMenu = menuFrame;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
// Assign this item to newMenu. This item will be selected in case we
|
|
// don't find any more.
|
|
lastWasValid = true;
|
|
newMenu = menuFrame;
|
|
} else {
|
|
lastWasValid = false;
|
|
}
|
|
|
|
currentMenu =
|
|
aIsUp ? currentMenu->GetPrevSibling() : currentMenu->GetNextSibling();
|
|
}
|
|
}
|
|
|
|
// Select the new menuitem.
|
|
if (newMenu) {
|
|
ChangeMenuItem(newMenu, false, true);
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP nsMenuPopupFrame::SetCurrentMenuItem(nsMenuFrame* aMenuItem) {
|
|
if (mCurrentMenu == aMenuItem) return NS_OK;
|
|
|
|
if (mCurrentMenu) {
|
|
mCurrentMenu->SelectMenu(false);
|
|
}
|
|
|
|
if (aMenuItem) {
|
|
EnsureMenuItemIsVisible(aMenuItem);
|
|
aMenuItem->SelectMenu(true);
|
|
}
|
|
|
|
mCurrentMenu = aMenuItem;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsMenuPopupFrame::CurrentMenuIsBeingDestroyed() { mCurrentMenu = nullptr; }
|
|
|
|
NS_IMETHODIMP
|
|
nsMenuPopupFrame::ChangeMenuItem(nsMenuFrame* aMenuItem, bool aSelectFirstItem,
|
|
bool aFromKey) {
|
|
if (mCurrentMenu == aMenuItem) return NS_OK;
|
|
|
|
// When a context menu is open, the current menu is locked, and no change
|
|
// to the menu is allowed.
|
|
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
|
|
if (!mIsContextMenu && pm && pm->HasContextMenu(this)) return NS_OK;
|
|
|
|
// Unset the current child.
|
|
if (mCurrentMenu) {
|
|
mCurrentMenu->SelectMenu(false);
|
|
nsMenuPopupFrame* popup = mCurrentMenu->GetPopup();
|
|
if (popup) {
|
|
if (mCurrentMenu->IsOpen()) {
|
|
if (pm) pm->HidePopupAfterDelay(popup);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set the new child.
|
|
if (aMenuItem) {
|
|
EnsureMenuItemIsVisible(aMenuItem);
|
|
aMenuItem->SelectMenu(true);
|
|
|
|
// On Windows, a menulist should update its value whenever navigation was
|
|
// done by the keyboard.
|
|
#ifdef XP_WIN
|
|
if (aFromKey && IsOpen() && IsMenuList()) {
|
|
// Fire a command event as the new item, but we don't want to close
|
|
// the menu, blink it, or update any other state of the menuitem. The
|
|
// command event will cause the item to be selected.
|
|
nsContentUtils::DispatchXULCommand(
|
|
aMenuItem->GetContent(), /* aTrusted = */ true, nullptr, PresShell(),
|
|
false, false, false, false);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
mCurrentMenu = aMenuItem;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsMenuFrame* nsMenuPopupFrame::Enter(WidgetGUIEvent* aEvent) {
|
|
mIncrementalString.Truncate();
|
|
|
|
// Give it to the child.
|
|
if (mCurrentMenu) return mCurrentMenu->Enter(aEvent);
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
nsMenuFrame* nsMenuPopupFrame::FindMenuWithShortcut(KeyboardEvent* aKeyEvent,
|
|
bool& doAction) {
|
|
uint32_t charCode = aKeyEvent->CharCode();
|
|
uint32_t keyCode = aKeyEvent->KeyCode();
|
|
|
|
doAction = false;
|
|
|
|
// Enumerate over our list of frames.
|
|
nsContainerFrame* immediateParent =
|
|
nsXULPopupManager::ImmediateParentFrame(this);
|
|
uint32_t matchCount = 0, matchShortcutCount = 0;
|
|
bool foundActive = false;
|
|
nsMenuFrame* frameBefore = nullptr;
|
|
nsMenuFrame* frameAfter = nullptr;
|
|
nsMenuFrame* frameShortcut = nullptr;
|
|
|
|
nsIContent* parentContent = mContent->GetParent();
|
|
|
|
bool isMenu = parentContent && !parentContent->NodeInfo()->Equals(
|
|
nsGkAtoms::menulist, kNameSpaceID_XUL);
|
|
|
|
DOMTimeStamp keyTime = aKeyEvent->TimeStamp();
|
|
|
|
if (charCode == 0) {
|
|
if (keyCode == dom::KeyboardEvent_Binding::DOM_VK_BACK_SPACE) {
|
|
if (!isMenu && !mIncrementalString.IsEmpty()) {
|
|
mIncrementalString.SetLength(mIncrementalString.Length() - 1);
|
|
return nullptr;
|
|
} else {
|
|
#ifdef XP_WIN
|
|
nsCOMPtr<nsISound> soundInterface =
|
|
do_CreateInstance("@mozilla.org/sound;1");
|
|
if (soundInterface) soundInterface->Beep();
|
|
#endif // #ifdef XP_WIN
|
|
}
|
|
}
|
|
return nullptr;
|
|
} else {
|
|
char16_t uniChar = ToLowerCase(static_cast<char16_t>(charCode));
|
|
if (isMenu) {
|
|
// Menu supports only first-letter navigation
|
|
mIncrementalString = uniChar;
|
|
} else if (IsWithinIncrementalTime(keyTime)) {
|
|
mIncrementalString.Append(uniChar);
|
|
} else {
|
|
// Interval too long, treat as new typing
|
|
mIncrementalString = uniChar;
|
|
}
|
|
}
|
|
|
|
// See bug 188199 & 192346, if all letters in incremental string are same,
|
|
// just try to match the first one
|
|
nsAutoString incrementalString(mIncrementalString);
|
|
uint32_t charIndex = 1, stringLength = incrementalString.Length();
|
|
while (charIndex < stringLength &&
|
|
incrementalString[charIndex] == incrementalString[charIndex - 1]) {
|
|
charIndex++;
|
|
}
|
|
if (charIndex == stringLength) {
|
|
incrementalString.Truncate(1);
|
|
stringLength = 1;
|
|
}
|
|
|
|
sLastKeyTime = keyTime;
|
|
|
|
// NOTE: If you crashed here due to a bogus |immediateParent| it is
|
|
// possible that the menu whose shortcut is being looked up has
|
|
// been destroyed already. One strategy would be to
|
|
// setTimeout(<func>,0) as detailed in:
|
|
// <http://bugzilla.mozilla.org/show_bug.cgi?id=126675#c32>
|
|
nsIFrame* firstMenuItem =
|
|
nsXULPopupManager::GetNextMenuItem(immediateParent, nullptr, true, false);
|
|
nsIFrame* currFrame = firstMenuItem;
|
|
|
|
int32_t menuAccessKey = -1;
|
|
nsMenuBarListener::GetMenuAccessKey(&menuAccessKey);
|
|
|
|
// We start searching from first child. This process is divided into two parts
|
|
// -- before current and after current -- by the current item
|
|
while (currFrame) {
|
|
nsIContent* current = currFrame->GetContent();
|
|
nsAutoString textKey;
|
|
bool isShortcut = false;
|
|
if (current->IsElement()) {
|
|
if (menuAccessKey >= 0) {
|
|
// Get the shortcut attribute.
|
|
current->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey,
|
|
textKey);
|
|
}
|
|
isShortcut = !textKey.IsEmpty();
|
|
if (textKey.IsEmpty()) { // No shortcut, try first letter
|
|
current->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::label,
|
|
textKey);
|
|
if (textKey.IsEmpty()) // No label, try another attribute (value)
|
|
current->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::value,
|
|
textKey);
|
|
}
|
|
}
|
|
|
|
if (StringBeginsWith(textKey, incrementalString,
|
|
nsCaseInsensitiveStringComparator())) {
|
|
// mIncrementalString is a prefix of textKey
|
|
nsMenuFrame* menu = do_QueryFrame(currFrame);
|
|
if (menu) {
|
|
// There is one match
|
|
matchCount++;
|
|
if (isShortcut) {
|
|
// There is one shortcut-key match
|
|
matchShortcutCount++;
|
|
// Record the matched item. If there is only one matched shortcut
|
|
// item, do it
|
|
frameShortcut = menu;
|
|
}
|
|
if (!foundActive) {
|
|
// It's a first candidate item located before/on the current item
|
|
if (!frameBefore) frameBefore = menu;
|
|
} else {
|
|
// It's a first candidate item located after the current item
|
|
if (!frameAfter) frameAfter = menu;
|
|
}
|
|
} else
|
|
return nullptr;
|
|
}
|
|
|
|
// Get the active status
|
|
if (current->IsElement() && current->AsElement()->AttrValueIs(
|
|
kNameSpaceID_None, nsGkAtoms::menuactive,
|
|
nsGkAtoms::_true, eCaseMatters)) {
|
|
foundActive = true;
|
|
if (stringLength > 1) {
|
|
// If there is more than one char typed, the current item has highest
|
|
// priority,
|
|
// otherwise the item next to current has highest priority
|
|
if (currFrame == frameBefore) return frameBefore;
|
|
}
|
|
}
|
|
|
|
nsMenuFrame* menu = do_QueryFrame(currFrame);
|
|
currFrame =
|
|
nsXULPopupManager::GetNextMenuItem(immediateParent, menu, true, true);
|
|
if (currFrame == firstMenuItem) break;
|
|
}
|
|
|
|
doAction = (isMenu && (matchCount == 1 || matchShortcutCount == 1));
|
|
|
|
if (matchShortcutCount == 1) // We have one matched shortcut item
|
|
return frameShortcut;
|
|
if (frameAfter) // If we have matched item after the current, use it
|
|
return frameAfter;
|
|
else if (frameBefore) // If we haven't, use the item before the current
|
|
return frameBefore;
|
|
|
|
// If we don't match anything, rollback the last typing
|
|
mIncrementalString.SetLength(mIncrementalString.Length() - 1);
|
|
|
|
// didn't find a matching menu item
|
|
#ifdef XP_WIN
|
|
// behavior on Windows - this item is in a menu popup off of the
|
|
// menu bar, so beep and do nothing else
|
|
if (isMenu) {
|
|
nsCOMPtr<nsISound> soundInterface =
|
|
do_CreateInstance("@mozilla.org/sound;1");
|
|
if (soundInterface) soundInterface->Beep();
|
|
}
|
|
#endif // #ifdef XP_WIN
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void nsMenuPopupFrame::LockMenuUntilClosed(bool aLock) {
|
|
mIsMenuLocked = aLock;
|
|
|
|
// Lock / unlock the parent, too.
|
|
nsMenuFrame* menu = do_QueryFrame(GetParent());
|
|
if (menu) {
|
|
nsMenuParent* parentParent = menu->GetMenuParent();
|
|
if (parentParent) {
|
|
parentParent->LockMenuUntilClosed(aLock);
|
|
}
|
|
}
|
|
}
|
|
|
|
nsIWidget* nsMenuPopupFrame::GetWidget() {
|
|
nsView* view = GetRootViewForPopup(this);
|
|
if (!view) return nullptr;
|
|
|
|
return view->GetWidget();
|
|
}
|
|
|
|
// helpers /////////////////////////////////////////////////////////////
|
|
|
|
nsresult nsMenuPopupFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsAtom* aAttribute,
|
|
int32_t aModType)
|
|
|
|
{
|
|
nsresult rv =
|
|
nsBoxFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
|
|
|
|
if (aAttribute == nsGkAtoms::left || aAttribute == nsGkAtoms::top)
|
|
MoveToAttributePosition();
|
|
|
|
if (aAttribute == nsGkAtoms::remote) {
|
|
// When the remote attribute changes, we need to create a new widget to
|
|
// ensure that it has the correct compositor and transparency settings to
|
|
// match the new value.
|
|
EnsureWidget(true);
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::followanchor) {
|
|
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
|
|
if (pm) {
|
|
pm->UpdateFollowAnchor(this);
|
|
}
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::label) {
|
|
// set the label for the titlebar
|
|
nsView* view = GetView();
|
|
if (view) {
|
|
nsIWidget* widget = view->GetWidget();
|
|
if (widget) {
|
|
nsAutoString title;
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::label,
|
|
title);
|
|
if (!title.IsEmpty()) {
|
|
widget->SetTitle(title);
|
|
}
|
|
}
|
|
}
|
|
} else if (aAttribute == nsGkAtoms::ignorekeys) {
|
|
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
|
|
if (pm) {
|
|
nsAutoString ignorekeys;
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::ignorekeys,
|
|
ignorekeys);
|
|
pm->UpdateIgnoreKeys(ignorekeys.EqualsLiteral("true"));
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
void nsMenuPopupFrame::MoveToAttributePosition() {
|
|
// Move the widget around when the user sets the |left| and |top| attributes.
|
|
// Note that this is not the best way to move the widget, as it results in
|
|
// lots of FE notifications and is likely to be slow as molasses. Use |moveTo|
|
|
// on the element if possible.
|
|
nsAutoString left, top;
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::left, left);
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::top, top);
|
|
nsresult err1, err2;
|
|
mozilla::CSSIntPoint pos(left.ToInteger(&err1), top.ToInteger(&err2));
|
|
|
|
if (NS_SUCCEEDED(err1) && NS_SUCCEEDED(err2)) MoveTo(pos, false);
|
|
}
|
|
|
|
void nsMenuPopupFrame::DestroyFrom(nsIFrame* aDestructRoot,
|
|
PostDestroyData& aPostDestroyData) {
|
|
if (mReflowCallbackData.mPosted) {
|
|
PresShell()->CancelReflowCallback(this);
|
|
mReflowCallbackData.Clear();
|
|
}
|
|
|
|
nsMenuFrame* menu = do_QueryFrame(GetParent());
|
|
if (menu) {
|
|
// clear the open attribute on the parent menu
|
|
nsContentUtils::AddScriptRunner(new nsUnsetAttrRunnable(
|
|
menu->GetContent()->AsElement(), nsGkAtoms::open));
|
|
}
|
|
|
|
ClearPopupShownDispatcher();
|
|
|
|
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
|
|
if (pm) pm->PopupDestroyed(this);
|
|
|
|
nsIPopupContainer* popupContainer =
|
|
nsIPopupContainer::GetPopupContainer(PresContext()->GetPresShell());
|
|
if (popupContainer && popupContainer->GetDefaultTooltip() == mContent) {
|
|
popupContainer->SetDefaultTooltip(nullptr);
|
|
}
|
|
|
|
nsBoxFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
|
|
}
|
|
|
|
void nsMenuPopupFrame::MoveTo(const CSSIntPoint& aPos, bool aUpdateAttrs) {
|
|
nsIWidget* widget = GetWidget();
|
|
if ((mScreenRect.x == aPos.x && mScreenRect.y == aPos.y) &&
|
|
(!widget || widget->GetClientOffset() == mLastClientOffset)) {
|
|
return;
|
|
}
|
|
|
|
// reposition the popup at the specified coordinates. Don't clear the anchor
|
|
// and position, because the popup can be reset to its anchor position by
|
|
// using (-1, -1) as coordinates. Subtract off the margin as it will be
|
|
// added to the position when SetPopupPosition is called.
|
|
nsMargin margin(0, 0, 0, 0);
|
|
StyleMargin()->GetMargin(margin);
|
|
|
|
// Workaround for bug 788189. See also bug 708278 comment #25 and following.
|
|
if (mAdjustOffsetForContextMenu) {
|
|
margin.left += nsPresContext::CSSPixelsToAppUnits(
|
|
LookAndFeel::GetInt(LookAndFeel::eIntID_ContextMenuOffsetHorizontal));
|
|
margin.top += nsPresContext::CSSPixelsToAppUnits(
|
|
LookAndFeel::GetInt(LookAndFeel::eIntID_ContextMenuOffsetVertical));
|
|
}
|
|
|
|
mAnchorType = MenuPopupAnchorType_Point;
|
|
mScreenRect.x = aPos.x - nsPresContext::AppUnitsToIntCSSPixels(margin.left);
|
|
mScreenRect.y = aPos.y - nsPresContext::AppUnitsToIntCSSPixels(margin.top);
|
|
|
|
SetPopupPosition(nullptr, true, false, true);
|
|
|
|
RefPtr<Element> popup = mContent->AsElement();
|
|
if (aUpdateAttrs && (popup->HasAttr(kNameSpaceID_None, nsGkAtoms::left) ||
|
|
popup->HasAttr(kNameSpaceID_None, nsGkAtoms::top))) {
|
|
nsAutoString left, top;
|
|
left.AppendInt(aPos.x);
|
|
top.AppendInt(aPos.y);
|
|
popup->SetAttr(kNameSpaceID_None, nsGkAtoms::left, left, false);
|
|
popup->SetAttr(kNameSpaceID_None, nsGkAtoms::top, top, false);
|
|
}
|
|
}
|
|
|
|
void nsMenuPopupFrame::MoveToAnchor(nsIContent* aAnchorContent,
|
|
const nsAString& aPosition, int32_t aXPos,
|
|
int32_t aYPos, bool aAttributesOverride) {
|
|
NS_ASSERTION(IsVisible(), "popup must be visible to move it");
|
|
|
|
nsPopupState oldstate = mPopupState;
|
|
InitializePopup(aAnchorContent, mTriggerContent, aPosition, aXPos, aYPos,
|
|
MenuPopupAnchorType_Node, aAttributesOverride);
|
|
// InitializePopup changed the state so reset it.
|
|
mPopupState = oldstate;
|
|
|
|
// Pass false here so that flipping and adjusting to fit on the screen happen.
|
|
SetPopupPosition(nullptr, false, false, true);
|
|
}
|
|
|
|
bool nsMenuPopupFrame::GetAutoPosition() { return mShouldAutoPosition; }
|
|
|
|
void nsMenuPopupFrame::SetAutoPosition(bool aShouldAutoPosition) {
|
|
mShouldAutoPosition = aShouldAutoPosition;
|
|
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
|
|
if (pm) {
|
|
pm->UpdateFollowAnchor(this);
|
|
}
|
|
}
|
|
|
|
int8_t nsMenuPopupFrame::GetAlignmentPosition() const {
|
|
// The code below handles most cases of alignment, anchor and position values.
|
|
// Those that are not handled just return POPUPPOSITION_UNKNOWN.
|
|
|
|
if (mPosition == POPUPPOSITION_OVERLAP ||
|
|
mPosition == POPUPPOSITION_AFTERPOINTER ||
|
|
mPosition == POPUPPOSITION_SELECTION)
|
|
return mPosition;
|
|
|
|
int8_t position = mPosition;
|
|
|
|
if (position == POPUPPOSITION_UNKNOWN) {
|
|
switch (mPopupAnchor) {
|
|
case POPUPALIGNMENT_BOTTOMCENTER:
|
|
position = mPopupAlignment == POPUPALIGNMENT_TOPRIGHT
|
|
? POPUPPOSITION_AFTEREND
|
|
: POPUPPOSITION_AFTERSTART;
|
|
break;
|
|
case POPUPALIGNMENT_TOPCENTER:
|
|
position = mPopupAlignment == POPUPALIGNMENT_BOTTOMRIGHT
|
|
? POPUPPOSITION_BEFOREEND
|
|
: POPUPPOSITION_BEFORESTART;
|
|
break;
|
|
case POPUPALIGNMENT_LEFTCENTER:
|
|
position = mPopupAlignment == POPUPALIGNMENT_BOTTOMRIGHT
|
|
? POPUPPOSITION_STARTAFTER
|
|
: POPUPPOSITION_STARTBEFORE;
|
|
break;
|
|
case POPUPALIGNMENT_RIGHTCENTER:
|
|
position = mPopupAlignment == POPUPALIGNMENT_BOTTOMLEFT
|
|
? POPUPPOSITION_ENDAFTER
|
|
: POPUPPOSITION_ENDBEFORE;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (mHFlip) {
|
|
position = POPUPPOSITION_HFLIP(position);
|
|
}
|
|
|
|
if (mVFlip) {
|
|
position = POPUPPOSITION_VFLIP(position);
|
|
}
|
|
|
|
return position;
|
|
}
|
|
|
|
/**
|
|
* KEEP THIS IN SYNC WITH nsFrame::CreateView
|
|
* as much as possible. Until we get rid of views finally...
|
|
*/
|
|
void nsMenuPopupFrame::CreatePopupView() {
|
|
if (HasView()) {
|
|
return;
|
|
}
|
|
|
|
nsViewManager* viewManager = PresContext()->GetPresShell()->GetViewManager();
|
|
NS_ASSERTION(nullptr != viewManager, "null view manager");
|
|
|
|
// Create a view
|
|
nsView* parentView = viewManager->GetRootView();
|
|
nsViewVisibility visibility = nsViewVisibility_kHide;
|
|
int32_t zIndex = INT32_MAX;
|
|
bool autoZIndex = false;
|
|
|
|
NS_ASSERTION(parentView, "no parent view");
|
|
|
|
// Create a view
|
|
nsView* view = viewManager->CreateView(GetRect(), parentView, visibility);
|
|
viewManager->SetViewZIndex(view, autoZIndex, zIndex);
|
|
// XXX put view last in document order until we can do better
|
|
viewManager->InsertChild(parentView, view, nullptr, true);
|
|
|
|
// Remember our view
|
|
SetView(view);
|
|
|
|
NS_FRAME_LOG(
|
|
NS_FRAME_TRACE_CALLS,
|
|
("nsMenuPopupFrame::CreatePopupView: frame=%p view=%p", this, view));
|
|
}
|
|
|
|
bool nsMenuPopupFrame::ShouldFollowAnchor() {
|
|
if (!mShouldAutoPosition || mAnchorType != MenuPopupAnchorType_Node ||
|
|
!mAnchorContent) {
|
|
return false;
|
|
}
|
|
|
|
// Follow anchor mode is used when followanchor="true" is set or for arrow
|
|
// panels.
|
|
if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::followanchor,
|
|
nsGkAtoms::_true, eCaseMatters)) {
|
|
return true;
|
|
}
|
|
|
|
if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::followanchor,
|
|
nsGkAtoms::_false, eCaseMatters)) {
|
|
return false;
|
|
}
|
|
|
|
return (mPopupType == ePopupTypePanel &&
|
|
mContent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
|
|
nsGkAtoms::arrow, eCaseMatters));
|
|
}
|
|
|
|
bool nsMenuPopupFrame::ShouldFollowAnchor(nsRect& aRect) {
|
|
if (!ShouldFollowAnchor()) {
|
|
return false;
|
|
}
|
|
|
|
nsIFrame* anchorFrame = mAnchorContent->GetPrimaryFrame();
|
|
if (anchorFrame) {
|
|
nsPresContext* rootPresContext = PresContext()->GetRootPresContext();
|
|
if (rootPresContext) {
|
|
aRect = ComputeAnchorRect(rootPresContext, anchorFrame);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void nsMenuPopupFrame::CheckForAnchorChange(nsRect& aRect) {
|
|
// Don't update if the popup isn't visible or we shouldn't be following the
|
|
// anchor.
|
|
if (!IsVisible() || !ShouldFollowAnchor()) {
|
|
return;
|
|
}
|
|
|
|
bool shouldHide = false;
|
|
|
|
nsPresContext* rootPresContext = PresContext()->GetRootPresContext();
|
|
|
|
// If the frame for the anchor has gone away, hide the popup.
|
|
nsIFrame* anchor = mAnchorContent->GetPrimaryFrame();
|
|
if (!anchor || !rootPresContext) {
|
|
shouldHide = true;
|
|
} else if (!anchor->IsVisibleConsideringAncestors(
|
|
VISIBILITY_CROSS_CHROME_CONTENT_BOUNDARY)) {
|
|
// If the anchor is now inside something that is invisible, hide the popup.
|
|
shouldHide = true;
|
|
} else {
|
|
// If the anchor is now inside a hidden parent popup, hide the popup.
|
|
nsIFrame* frame = anchor;
|
|
while (frame) {
|
|
nsMenuPopupFrame* popup = do_QueryFrame(frame);
|
|
if (popup && popup->PopupState() != ePopupShown) {
|
|
shouldHide = true;
|
|
break;
|
|
}
|
|
|
|
frame = frame->GetParent();
|
|
}
|
|
}
|
|
|
|
if (shouldHide) {
|
|
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
|
|
if (pm) {
|
|
// As the caller will be iterating over the open popups, hide
|
|
// asyncronously.
|
|
pm->HidePopup(mContent, false, true, true, false);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
nsRect anchorRect = ComputeAnchorRect(rootPresContext, anchor);
|
|
|
|
// If the rectangles are different, move the popup.
|
|
if (!anchorRect.IsEqualEdges(aRect)) {
|
|
aRect = anchorRect;
|
|
SetPopupPosition(nullptr, true, false, true);
|
|
}
|
|
}
|