mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-10 11:54:40 +00:00
2114 lines
63 KiB
C++
2114 lines
63 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 sw=2 et 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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//
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// Eric Vaughan
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// Netscape Communications
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//
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// See documentation in associated header file
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//
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// How boxes layout
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// ----------------
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// Boxes layout a bit differently than html. html does a bottom up layout. Where boxes do a top down.
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// 1) First thing a box does it goes out and askes each child for its min, max, and preferred sizes.
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// 2) It then adds them up to determine its size.
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// 3) If the box was asked to layout it self intrinically it will layout its children at their preferred size
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// otherwise it will layout the child at the size it was told to. It will squeeze or stretch its children if
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// Necessary.
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//
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// However there is a catch. Some html components like block frames can not determine their preferred size.
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// this is their size if they were laid out intrinsically. So the box will flow the child to determine this can
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// cache the value.
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// Boxes and Incremental Reflow
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// ----------------------------
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// Boxes layout out top down by adding up their children's min, max, and preferred sizes. Only problem is if a incremental
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// reflow occurs. The preferred size of a child deep in the hierarchy could change. And this could change
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// any number of syblings around the box. Basically any children in the reflow chain must have their caches cleared
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// so when asked for there current size they can relayout themselves.
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#include "nsBoxFrame.h"
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#include "gfxUtils.h"
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#include "mozilla/gfx/2D.h"
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#include "nsBoxLayoutState.h"
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#include "mozilla/dom/Touch.h"
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#include "mozilla/Move.h"
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#include "nsStyleContext.h"
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#include "nsPlaceholderFrame.h"
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#include "nsPresContext.h"
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#include "nsCOMPtr.h"
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#include "nsNameSpaceManager.h"
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#include "nsGkAtoms.h"
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#include "nsIContent.h"
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#include "nsHTMLParts.h"
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#include "nsViewManager.h"
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#include "nsView.h"
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#include "nsIPresShell.h"
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#include "nsCSSRendering.h"
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#include "nsIServiceManager.h"
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#include "nsBoxLayout.h"
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#include "nsSprocketLayout.h"
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#include "nsIScrollableFrame.h"
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#include "nsWidgetsCID.h"
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#include "nsCSSAnonBoxes.h"
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#include "nsContainerFrame.h"
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#include "nsIDOMElement.h"
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#include "nsITheme.h"
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#include "nsTransform2D.h"
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#include "mozilla/EventStateManager.h"
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#include "nsIDOMEvent.h"
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#include "nsDisplayList.h"
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#include "mozilla/Preferences.h"
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#include "nsThemeConstants.h"
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#include "nsLayoutUtils.h"
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#include "nsSliderFrame.h"
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#include <algorithm>
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// Needed for Print Preview
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#include "nsIURI.h"
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#include "mozilla/TouchEvents.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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using namespace mozilla::gfx;
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//define DEBUG_REDRAW
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#define DEBUG_SPRING_SIZE 8
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#define DEBUG_BORDER_SIZE 2
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#define COIL_SIZE 8
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//#define TEST_SANITY
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#ifdef DEBUG_rods
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//#define DO_NOISY_REFLOW
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#endif
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#ifdef DEBUG_LAYOUT
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bool nsBoxFrame::gDebug = false;
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nsIFrame* nsBoxFrame::mDebugChild = nullptr;
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#endif
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nsIFrame*
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NS_NewBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext, bool aIsRoot, nsBoxLayout* aLayoutManager)
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{
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return new (aPresShell) nsBoxFrame(aContext, aIsRoot, aLayoutManager);
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}
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nsIFrame*
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NS_NewBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsBoxFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsBoxFrame)
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#ifdef DEBUG
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NS_QUERYFRAME_HEAD(nsBoxFrame)
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NS_QUERYFRAME_ENTRY(nsBoxFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
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#endif
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nsBoxFrame::nsBoxFrame(nsStyleContext* aContext,
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bool aIsRoot,
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nsBoxLayout* aLayoutManager) :
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nsContainerFrame(aContext)
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{
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mState |= NS_STATE_IS_HORIZONTAL;
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mState |= NS_STATE_AUTO_STRETCH;
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if (aIsRoot)
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mState |= NS_STATE_IS_ROOT;
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mValign = vAlign_Top;
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mHalign = hAlign_Left;
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// if no layout manager specified us the static sprocket layout
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nsCOMPtr<nsBoxLayout> layout = aLayoutManager;
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if (layout == nullptr) {
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NS_NewSprocketLayout(PresContext()->PresShell(), layout);
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}
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SetLayoutManager(layout);
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}
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nsBoxFrame::~nsBoxFrame()
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{
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}
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void
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nsBoxFrame::SetInitialChildList(ChildListID aListID,
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nsFrameList& aChildList)
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{
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nsContainerFrame::SetInitialChildList(aListID, aChildList);
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// initialize our list of infos.
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nsBoxLayoutState state(PresContext());
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CheckBoxOrder();
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if (mLayoutManager)
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mLayoutManager->ChildrenSet(this, state, mFrames.FirstChild());
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}
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/* virtual */ void
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nsBoxFrame::DidSetStyleContext(nsStyleContext* aOldStyleContext)
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{
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nsContainerFrame::DidSetStyleContext(aOldStyleContext);
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// The values that CacheAttributes() computes depend on our style,
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// so we need to recompute them here...
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CacheAttributes();
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}
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/**
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* Initialize us. This is a good time to get the alignment of the box
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*/
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void
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nsBoxFrame::Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow)
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{
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nsContainerFrame::Init(aContent, aParent, aPrevInFlow);
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if (GetStateBits() & NS_FRAME_FONT_INFLATION_CONTAINER) {
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AddStateBits(NS_FRAME_FONT_INFLATION_FLOW_ROOT);
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}
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MarkIntrinsicISizesDirty();
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CacheAttributes();
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#ifdef DEBUG_LAYOUT
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// if we are root and this
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if (mState & NS_STATE_IS_ROOT) {
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GetDebugPref();
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}
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#endif
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UpdateMouseThrough();
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// register access key
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RegUnregAccessKey(true);
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}
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void nsBoxFrame::UpdateMouseThrough()
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{
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if (mContent) {
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static nsIContent::AttrValuesArray strings[] =
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{&nsGkAtoms::never, &nsGkAtoms::always, nullptr};
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switch (mContent->FindAttrValueIn(kNameSpaceID_None,
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nsGkAtoms::mousethrough, strings, eCaseMatters)) {
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case 0: AddStateBits(NS_FRAME_MOUSE_THROUGH_NEVER); break;
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case 1: AddStateBits(NS_FRAME_MOUSE_THROUGH_ALWAYS); break;
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case 2: {
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RemoveStateBits(NS_FRAME_MOUSE_THROUGH_ALWAYS);
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RemoveStateBits(NS_FRAME_MOUSE_THROUGH_NEVER);
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break;
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}
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}
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}
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}
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void
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nsBoxFrame::CacheAttributes()
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{
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/*
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printf("Caching: ");
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DumpBox(stdout);
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printf("\n");
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*/
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mValign = vAlign_Top;
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mHalign = hAlign_Left;
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bool orient = false;
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GetInitialOrientation(orient);
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if (orient)
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mState |= NS_STATE_IS_HORIZONTAL;
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else
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mState &= ~NS_STATE_IS_HORIZONTAL;
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bool normal = true;
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GetInitialDirection(normal);
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if (normal)
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mState |= NS_STATE_IS_DIRECTION_NORMAL;
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else
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mState &= ~NS_STATE_IS_DIRECTION_NORMAL;
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GetInitialVAlignment(mValign);
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GetInitialHAlignment(mHalign);
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bool equalSize = false;
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GetInitialEqualSize(equalSize);
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if (equalSize)
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mState |= NS_STATE_EQUAL_SIZE;
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else
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mState &= ~NS_STATE_EQUAL_SIZE;
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bool autostretch = !!(mState & NS_STATE_AUTO_STRETCH);
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GetInitialAutoStretch(autostretch);
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if (autostretch)
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mState |= NS_STATE_AUTO_STRETCH;
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else
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mState &= ~NS_STATE_AUTO_STRETCH;
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#ifdef DEBUG_LAYOUT
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bool debug = mState & NS_STATE_SET_TO_DEBUG;
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bool debugSet = GetInitialDebug(debug);
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if (debugSet) {
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mState |= NS_STATE_DEBUG_WAS_SET;
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if (debug)
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mState |= NS_STATE_SET_TO_DEBUG;
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else
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mState &= ~NS_STATE_SET_TO_DEBUG;
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} else {
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mState &= ~NS_STATE_DEBUG_WAS_SET;
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}
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#endif
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}
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#ifdef DEBUG_LAYOUT
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bool
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nsBoxFrame::GetInitialDebug(bool& aDebug)
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{
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if (!GetContent())
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return false;
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static nsIContent::AttrValuesArray strings[] =
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{&nsGkAtoms::_false, &nsGkAtoms::_true, nullptr};
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int32_t index = GetContent()->FindAttrValueIn(kNameSpaceID_None,
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nsGkAtoms::debug, strings, eCaseMatters);
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if (index >= 0) {
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aDebug = index == 1;
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return true;
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}
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return false;
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}
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#endif
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bool
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nsBoxFrame::GetInitialHAlignment(nsBoxFrame::Halignment& aHalign)
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{
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if (!GetContent())
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return false;
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// XXXdwh Everything inside this if statement is deprecated code.
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static nsIContent::AttrValuesArray alignStrings[] =
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{&nsGkAtoms::left, &nsGkAtoms::right, nullptr};
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static const Halignment alignValues[] = {hAlign_Left, hAlign_Right};
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int32_t index = GetContent()->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::align,
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alignStrings, eCaseMatters);
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if (index >= 0) {
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aHalign = alignValues[index];
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return true;
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}
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// Now that the deprecated stuff is out of the way, we move on to check the appropriate
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// attribute. For horizontal boxes, we are checking the PACK attribute. For vertical boxes
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// we are checking the ALIGN attribute.
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nsIAtom* attrName = IsHorizontal() ? nsGkAtoms::pack : nsGkAtoms::align;
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static nsIContent::AttrValuesArray strings[] =
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{&nsGkAtoms::_empty, &nsGkAtoms::start, &nsGkAtoms::center, &nsGkAtoms::end, nullptr};
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static const Halignment values[] =
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{hAlign_Left/*not used*/, hAlign_Left, hAlign_Center, hAlign_Right};
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index = GetContent()->FindAttrValueIn(kNameSpaceID_None, attrName,
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strings, eCaseMatters);
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if (index == nsIContent::ATTR_VALUE_NO_MATCH) {
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// The attr was present but had a nonsensical value. Revert to the default.
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return false;
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}
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if (index > 0) {
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aHalign = values[index];
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return true;
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}
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// Now that we've checked for the attribute it's time to check CSS. For
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// horizontal boxes we're checking PACK. For vertical boxes we are checking
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// ALIGN.
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const nsStyleXUL* boxInfo = StyleXUL();
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if (IsHorizontal()) {
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switch (boxInfo->mBoxPack) {
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case NS_STYLE_BOX_PACK_START:
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aHalign = nsBoxFrame::hAlign_Left;
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return true;
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case NS_STYLE_BOX_PACK_CENTER:
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aHalign = nsBoxFrame::hAlign_Center;
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return true;
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case NS_STYLE_BOX_PACK_END:
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aHalign = nsBoxFrame::hAlign_Right;
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return true;
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default: // Nonsensical value. Just bail.
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return false;
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}
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}
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else {
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switch (boxInfo->mBoxAlign) {
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case NS_STYLE_BOX_ALIGN_START:
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aHalign = nsBoxFrame::hAlign_Left;
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return true;
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case NS_STYLE_BOX_ALIGN_CENTER:
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aHalign = nsBoxFrame::hAlign_Center;
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return true;
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case NS_STYLE_BOX_ALIGN_END:
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aHalign = nsBoxFrame::hAlign_Right;
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return true;
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default: // Nonsensical value. Just bail.
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return false;
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}
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}
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return false;
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}
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bool
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nsBoxFrame::GetInitialVAlignment(nsBoxFrame::Valignment& aValign)
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{
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if (!GetContent())
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return false;
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static nsIContent::AttrValuesArray valignStrings[] =
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{&nsGkAtoms::top, &nsGkAtoms::baseline, &nsGkAtoms::middle, &nsGkAtoms::bottom, nullptr};
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static const Valignment valignValues[] =
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{vAlign_Top, vAlign_BaseLine, vAlign_Middle, vAlign_Bottom};
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int32_t index = GetContent()->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::valign,
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valignStrings, eCaseMatters);
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if (index >= 0) {
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aValign = valignValues[index];
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return true;
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}
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// Now that the deprecated stuff is out of the way, we move on to check the appropriate
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// attribute. For horizontal boxes, we are checking the ALIGN attribute. For vertical boxes
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// we are checking the PACK attribute.
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nsIAtom* attrName = IsHorizontal() ? nsGkAtoms::align : nsGkAtoms::pack;
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static nsIContent::AttrValuesArray strings[] =
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{&nsGkAtoms::_empty, &nsGkAtoms::start, &nsGkAtoms::center,
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&nsGkAtoms::baseline, &nsGkAtoms::end, nullptr};
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static const Valignment values[] =
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{vAlign_Top/*not used*/, vAlign_Top, vAlign_Middle, vAlign_BaseLine, vAlign_Bottom};
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index = GetContent()->FindAttrValueIn(kNameSpaceID_None, attrName,
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strings, eCaseMatters);
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if (index == nsIContent::ATTR_VALUE_NO_MATCH) {
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// The attr was present but had a nonsensical value. Revert to the default.
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return false;
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}
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if (index > 0) {
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aValign = values[index];
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return true;
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}
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// Now that we've checked for the attribute it's time to check CSS. For
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// horizontal boxes we're checking ALIGN. For vertical boxes we are checking
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// PACK.
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const nsStyleXUL* boxInfo = StyleXUL();
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if (IsHorizontal()) {
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switch (boxInfo->mBoxAlign) {
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case NS_STYLE_BOX_ALIGN_START:
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aValign = nsBoxFrame::vAlign_Top;
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return true;
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case NS_STYLE_BOX_ALIGN_CENTER:
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aValign = nsBoxFrame::vAlign_Middle;
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return true;
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case NS_STYLE_BOX_ALIGN_BASELINE:
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aValign = nsBoxFrame::vAlign_BaseLine;
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return true;
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case NS_STYLE_BOX_ALIGN_END:
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aValign = nsBoxFrame::vAlign_Bottom;
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return true;
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default: // Nonsensical value. Just bail.
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return false;
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}
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}
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else {
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switch (boxInfo->mBoxPack) {
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case NS_STYLE_BOX_PACK_START:
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aValign = nsBoxFrame::vAlign_Top;
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return true;
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case NS_STYLE_BOX_PACK_CENTER:
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aValign = nsBoxFrame::vAlign_Middle;
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return true;
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case NS_STYLE_BOX_PACK_END:
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aValign = nsBoxFrame::vAlign_Bottom;
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return true;
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default: // Nonsensical value. Just bail.
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return false;
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}
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}
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return false;
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}
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void
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nsBoxFrame::GetInitialOrientation(bool& aIsHorizontal)
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{
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// see if we are a vertical or horizontal box.
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if (!GetContent())
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return;
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// Check the style system first.
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const nsStyleXUL* boxInfo = StyleXUL();
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if (boxInfo->mBoxOrient == NS_STYLE_BOX_ORIENT_HORIZONTAL)
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aIsHorizontal = true;
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else
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aIsHorizontal = false;
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// Now see if we have an attribute. The attribute overrides
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// the style system value.
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static nsIContent::AttrValuesArray strings[] =
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{&nsGkAtoms::vertical, &nsGkAtoms::horizontal, nullptr};
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int32_t index = GetContent()->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::orient,
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strings, eCaseMatters);
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if (index >= 0) {
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aIsHorizontal = index == 1;
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}
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}
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void
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nsBoxFrame::GetInitialDirection(bool& aIsNormal)
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{
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if (!GetContent())
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return;
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if (IsHorizontal()) {
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// For horizontal boxes only, we initialize our value based off the CSS 'direction' property.
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// This means that BiDI users will end up with horizontally inverted chrome.
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aIsNormal = (StyleVisibility()->mDirection == NS_STYLE_DIRECTION_LTR); // If text runs RTL then so do we.
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}
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else
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aIsNormal = true; // Assume a normal direction in the vertical case.
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// Now check the style system to see if we should invert aIsNormal.
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const nsStyleXUL* boxInfo = StyleXUL();
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if (boxInfo->mBoxDirection == NS_STYLE_BOX_DIRECTION_REVERSE)
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aIsNormal = !aIsNormal; // Invert our direction.
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// Now see if we have an attribute. The attribute overrides
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// the style system value.
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if (IsHorizontal()) {
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static nsIContent::AttrValuesArray strings[] =
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{&nsGkAtoms::reverse, &nsGkAtoms::ltr, &nsGkAtoms::rtl, nullptr};
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int32_t index = GetContent()->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::dir,
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strings, eCaseMatters);
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if (index >= 0) {
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bool values[] = {!aIsNormal, true, false};
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aIsNormal = values[index];
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}
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} else if (GetContent()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::dir,
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nsGkAtoms::reverse, eCaseMatters)) {
|
|
aIsNormal = !aIsNormal;
|
|
}
|
|
}
|
|
|
|
/* Returns true if it was set.
|
|
*/
|
|
bool
|
|
nsBoxFrame::GetInitialEqualSize(bool& aEqualSize)
|
|
{
|
|
// see if we are a vertical or horizontal box.
|
|
if (!GetContent())
|
|
return false;
|
|
|
|
if (GetContent()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::equalsize,
|
|
nsGkAtoms::always, eCaseMatters)) {
|
|
aEqualSize = true;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/* Returns true if it was set.
|
|
*/
|
|
bool
|
|
nsBoxFrame::GetInitialAutoStretch(bool& aStretch)
|
|
{
|
|
if (!GetContent())
|
|
return false;
|
|
|
|
// Check the align attribute.
|
|
static nsIContent::AttrValuesArray strings[] =
|
|
{&nsGkAtoms::_empty, &nsGkAtoms::stretch, nullptr};
|
|
int32_t index = GetContent()->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::align,
|
|
strings, eCaseMatters);
|
|
if (index != nsIContent::ATTR_MISSING && index != 0) {
|
|
aStretch = index == 1;
|
|
return true;
|
|
}
|
|
|
|
// Check the CSS box-align property.
|
|
const nsStyleXUL* boxInfo = StyleXUL();
|
|
aStretch = (boxInfo->mBoxAlign == NS_STYLE_BOX_ALIGN_STRETCH);
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::DidReflow(nsPresContext* aPresContext,
|
|
const nsHTMLReflowState* aReflowState,
|
|
nsDidReflowStatus aStatus)
|
|
{
|
|
nsFrameState preserveBits =
|
|
mState & (NS_FRAME_IS_DIRTY | NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
nsFrame::DidReflow(aPresContext, aReflowState, aStatus);
|
|
mState |= preserveBits;
|
|
}
|
|
|
|
bool
|
|
nsBoxFrame::HonorPrintBackgroundSettings()
|
|
{
|
|
return (!mContent || !mContent->IsInNativeAnonymousSubtree()) &&
|
|
nsContainerFrame::HonorPrintBackgroundSettings();
|
|
}
|
|
|
|
#ifdef DO_NOISY_REFLOW
|
|
static int myCounter = 0;
|
|
static void printSize(char * aDesc, nscoord aSize)
|
|
{
|
|
printf(" %s: ", aDesc);
|
|
if (aSize == NS_UNCONSTRAINEDSIZE) {
|
|
printf("UC");
|
|
} else {
|
|
printf("%d", aSize);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* virtual */ nscoord
|
|
nsBoxFrame::GetMinISize(nsRenderingContext *aRenderingContext)
|
|
{
|
|
nscoord result;
|
|
DISPLAY_MIN_WIDTH(this, result);
|
|
|
|
nsBoxLayoutState state(PresContext(), aRenderingContext);
|
|
nsSize minSize = GetMinSize(state);
|
|
|
|
// GetMinSize returns border-box width, and we want to return content
|
|
// width. Since Reflow uses the reflow state's border and padding, we
|
|
// actually just want to subtract what GetMinSize added, which is the
|
|
// result of GetBorderAndPadding.
|
|
nsMargin bp;
|
|
GetBorderAndPadding(bp);
|
|
|
|
result = minSize.width - bp.LeftRight();
|
|
result = std::max(result, 0);
|
|
|
|
return result;
|
|
}
|
|
|
|
/* virtual */ nscoord
|
|
nsBoxFrame::GetPrefISize(nsRenderingContext *aRenderingContext)
|
|
{
|
|
nscoord result;
|
|
DISPLAY_PREF_WIDTH(this, result);
|
|
|
|
nsBoxLayoutState state(PresContext(), aRenderingContext);
|
|
nsSize prefSize = GetPrefSize(state);
|
|
|
|
// GetPrefSize returns border-box width, and we want to return content
|
|
// width. Since Reflow uses the reflow state's border and padding, we
|
|
// actually just want to subtract what GetPrefSize added, which is the
|
|
// result of GetBorderAndPadding.
|
|
nsMargin bp;
|
|
GetBorderAndPadding(bp);
|
|
|
|
result = prefSize.width - bp.LeftRight();
|
|
result = std::max(result, 0);
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
MarkInReflow();
|
|
// If you make changes to this method, please keep nsLeafBoxFrame::Reflow
|
|
// in sync, if the changes are applicable there.
|
|
|
|
DO_GLOBAL_REFLOW_COUNT("nsBoxFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
|
|
|
|
NS_ASSERTION(aReflowState.ComputedWidth() >=0 &&
|
|
aReflowState.ComputedHeight() >= 0, "Computed Size < 0");
|
|
|
|
#ifdef DO_NOISY_REFLOW
|
|
printf("\n-------------Starting BoxFrame Reflow ----------------------------\n");
|
|
printf("%p ** nsBF::Reflow %d ", this, myCounter++);
|
|
|
|
printSize("AW", aReflowState.AvailableWidth());
|
|
printSize("AH", aReflowState.AvailableHeight());
|
|
printSize("CW", aReflowState.ComputedWidth());
|
|
printSize("CH", aReflowState.ComputedHeight());
|
|
|
|
printf(" *\n");
|
|
|
|
#endif
|
|
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
|
|
// create the layout state
|
|
nsBoxLayoutState state(aPresContext, aReflowState.rendContext,
|
|
&aReflowState, aReflowState.mReflowDepth);
|
|
|
|
WritingMode wm = aReflowState.GetWritingMode();
|
|
LogicalSize computedSize(wm, aReflowState.ComputedISize(),
|
|
aReflowState.ComputedBSize());
|
|
|
|
LogicalMargin m = aReflowState.ComputedLogicalBorderPadding();
|
|
// GetBorderAndPadding(m);
|
|
|
|
LogicalSize prefSize(wm);
|
|
|
|
// if we are told to layout intrinsic then get our preferred size.
|
|
NS_ASSERTION(computedSize.ISize(wm) != NS_INTRINSICSIZE,
|
|
"computed inline size should always be computed");
|
|
if (computedSize.BSize(wm) == NS_INTRINSICSIZE) {
|
|
nsSize physicalPrefSize = GetPrefSize(state);
|
|
nsSize minSize = GetMinSize(state);
|
|
nsSize maxSize = GetMaxSize(state);
|
|
// XXXbz isn't GetPrefSize supposed to bounds-check for us?
|
|
physicalPrefSize = BoundsCheck(minSize, physicalPrefSize, maxSize);
|
|
prefSize = LogicalSize(wm, physicalPrefSize);
|
|
}
|
|
|
|
// get our desiredSize
|
|
computedSize.ISize(wm) += m.IStart(wm) + m.IEnd(wm);
|
|
|
|
if (aReflowState.ComputedBSize() == NS_INTRINSICSIZE) {
|
|
computedSize.BSize(wm) = prefSize.BSize(wm);
|
|
// prefSize is border-box but min/max constraints are content-box.
|
|
nscoord blockDirBorderPadding =
|
|
aReflowState.ComputedLogicalBorderPadding().BStartEnd(wm);
|
|
nscoord contentBSize = computedSize.BSize(wm) - blockDirBorderPadding;
|
|
// Note: contentHeight might be negative, but that's OK because min-height
|
|
// is never negative.
|
|
computedSize.BSize(wm) = aReflowState.ApplyMinMaxHeight(contentBSize) +
|
|
blockDirBorderPadding;
|
|
} else {
|
|
computedSize.BSize(wm) += m.BStart(wm) + m.BEnd(wm);
|
|
}
|
|
|
|
nsSize physicalSize = computedSize.GetPhysicalSize(wm);
|
|
nsRect r(mRect.x, mRect.y, physicalSize.width, physicalSize.height);
|
|
|
|
SetBounds(state, r);
|
|
|
|
// layout our children
|
|
Layout(state);
|
|
|
|
// ok our child could have gotten bigger. So lets get its bounds
|
|
|
|
// get the ascent
|
|
LogicalSize boxSize = GetLogicalSize(wm);
|
|
nscoord ascent = boxSize.BSize(wm);
|
|
|
|
// getting the ascent could be a lot of work. Don't get it if
|
|
// we are the root. The viewport doesn't care about it.
|
|
if (!(mState & NS_STATE_IS_ROOT)) {
|
|
ascent = GetBoxAscent(state);
|
|
}
|
|
|
|
aDesiredSize.SetSize(wm, boxSize);
|
|
aDesiredSize.SetBlockStartAscent(ascent);
|
|
|
|
aDesiredSize.mOverflowAreas = GetOverflowAreas();
|
|
|
|
#ifdef DO_NOISY_REFLOW
|
|
{
|
|
printf("%p ** nsBF(done) W:%d H:%d ", this, aDesiredSize.Width(), aDesiredSize.Height());
|
|
|
|
if (maxElementSize) {
|
|
printf("MW:%d\n", *maxElementWidth);
|
|
} else {
|
|
printf("MW:?\n");
|
|
}
|
|
|
|
}
|
|
#endif
|
|
|
|
ReflowAbsoluteFrames(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
|
|
}
|
|
|
|
nsSize
|
|
nsBoxFrame::GetPrefSize(nsBoxLayoutState& aBoxLayoutState)
|
|
{
|
|
NS_ASSERTION(aBoxLayoutState.GetRenderingContext(),
|
|
"must have rendering context");
|
|
|
|
nsSize size(0,0);
|
|
DISPLAY_PREF_SIZE(this, size);
|
|
if (!DoesNeedRecalc(mPrefSize)) {
|
|
return mPrefSize;
|
|
}
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
PropagateDebug(aBoxLayoutState);
|
|
#endif
|
|
|
|
if (IsCollapsed())
|
|
return size;
|
|
|
|
// if the size was not completely redefined in CSS then ask our children
|
|
bool widthSet, heightSet;
|
|
if (!nsIFrame::AddCSSPrefSize(this, size, widthSet, heightSet))
|
|
{
|
|
if (mLayoutManager) {
|
|
nsSize layoutSize = mLayoutManager->GetPrefSize(this, aBoxLayoutState);
|
|
if (!widthSet)
|
|
size.width = layoutSize.width;
|
|
if (!heightSet)
|
|
size.height = layoutSize.height;
|
|
}
|
|
else {
|
|
size = nsBox::GetPrefSize(aBoxLayoutState);
|
|
}
|
|
}
|
|
|
|
nsSize minSize = GetMinSize(aBoxLayoutState);
|
|
nsSize maxSize = GetMaxSize(aBoxLayoutState);
|
|
mPrefSize = BoundsCheck(minSize, size, maxSize);
|
|
|
|
return mPrefSize;
|
|
}
|
|
|
|
nscoord
|
|
nsBoxFrame::GetBoxAscent(nsBoxLayoutState& aBoxLayoutState)
|
|
{
|
|
if (!DoesNeedRecalc(mAscent))
|
|
return mAscent;
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
PropagateDebug(aBoxLayoutState);
|
|
#endif
|
|
|
|
if (IsCollapsed())
|
|
return 0;
|
|
|
|
if (mLayoutManager)
|
|
mAscent = mLayoutManager->GetAscent(this, aBoxLayoutState);
|
|
else
|
|
mAscent = nsBox::GetBoxAscent(aBoxLayoutState);
|
|
|
|
return mAscent;
|
|
}
|
|
|
|
nsSize
|
|
nsBoxFrame::GetMinSize(nsBoxLayoutState& aBoxLayoutState)
|
|
{
|
|
NS_ASSERTION(aBoxLayoutState.GetRenderingContext(),
|
|
"must have rendering context");
|
|
|
|
nsSize size(0,0);
|
|
DISPLAY_MIN_SIZE(this, size);
|
|
if (!DoesNeedRecalc(mMinSize)) {
|
|
return mMinSize;
|
|
}
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
PropagateDebug(aBoxLayoutState);
|
|
#endif
|
|
|
|
if (IsCollapsed())
|
|
return size;
|
|
|
|
// if the size was not completely redefined in CSS then ask our children
|
|
bool widthSet, heightSet;
|
|
if (!nsIFrame::AddCSSMinSize(aBoxLayoutState, this, size, widthSet, heightSet))
|
|
{
|
|
if (mLayoutManager) {
|
|
nsSize layoutSize = mLayoutManager->GetMinSize(this, aBoxLayoutState);
|
|
if (!widthSet)
|
|
size.width = layoutSize.width;
|
|
if (!heightSet)
|
|
size.height = layoutSize.height;
|
|
}
|
|
else {
|
|
size = nsBox::GetMinSize(aBoxLayoutState);
|
|
}
|
|
}
|
|
|
|
mMinSize = size;
|
|
|
|
return size;
|
|
}
|
|
|
|
nsSize
|
|
nsBoxFrame::GetMaxSize(nsBoxLayoutState& aBoxLayoutState)
|
|
{
|
|
NS_ASSERTION(aBoxLayoutState.GetRenderingContext(),
|
|
"must have rendering context");
|
|
|
|
nsSize size(NS_INTRINSICSIZE, NS_INTRINSICSIZE);
|
|
DISPLAY_MAX_SIZE(this, size);
|
|
if (!DoesNeedRecalc(mMaxSize)) {
|
|
return mMaxSize;
|
|
}
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
PropagateDebug(aBoxLayoutState);
|
|
#endif
|
|
|
|
if (IsCollapsed())
|
|
return size;
|
|
|
|
// if the size was not completely redefined in CSS then ask our children
|
|
bool widthSet, heightSet;
|
|
if (!nsIFrame::AddCSSMaxSize(this, size, widthSet, heightSet))
|
|
{
|
|
if (mLayoutManager) {
|
|
nsSize layoutSize = mLayoutManager->GetMaxSize(this, aBoxLayoutState);
|
|
if (!widthSet)
|
|
size.width = layoutSize.width;
|
|
if (!heightSet)
|
|
size.height = layoutSize.height;
|
|
}
|
|
else {
|
|
size = nsBox::GetMaxSize(aBoxLayoutState);
|
|
}
|
|
}
|
|
|
|
mMaxSize = size;
|
|
|
|
return size;
|
|
}
|
|
|
|
nscoord
|
|
nsBoxFrame::GetFlex(nsBoxLayoutState& aBoxLayoutState)
|
|
{
|
|
if (!DoesNeedRecalc(mFlex))
|
|
return mFlex;
|
|
|
|
mFlex = nsBox::GetFlex(aBoxLayoutState);
|
|
|
|
return mFlex;
|
|
}
|
|
|
|
/**
|
|
* If subclassing please subclass this method not layout.
|
|
* layout will call this method.
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsBoxFrame::DoLayout(nsBoxLayoutState& aState)
|
|
{
|
|
uint32_t oldFlags = aState.LayoutFlags();
|
|
aState.SetLayoutFlags(0);
|
|
|
|
nsresult rv = NS_OK;
|
|
if (mLayoutManager) {
|
|
CoordNeedsRecalc(mAscent);
|
|
rv = mLayoutManager->Layout(this, aState);
|
|
}
|
|
|
|
aState.SetLayoutFlags(oldFlags);
|
|
|
|
if (HasAbsolutelyPositionedChildren()) {
|
|
// Set up a |reflowState| to pass into ReflowAbsoluteFrames
|
|
WritingMode wm = GetWritingMode();
|
|
nsHTMLReflowState reflowState(aState.PresContext(), this,
|
|
aState.GetRenderingContext(),
|
|
LogicalSize(wm, GetLogicalSize().ISize(wm),
|
|
NS_UNCONSTRAINEDSIZE));
|
|
|
|
// Set up a |desiredSize| to pass into ReflowAbsoluteFrames
|
|
nsHTMLReflowMetrics desiredSize(reflowState);
|
|
desiredSize.Width() = mRect.width;
|
|
desiredSize.Height() = mRect.height;
|
|
|
|
// get the ascent (cribbed from ::Reflow)
|
|
nscoord ascent = mRect.height;
|
|
|
|
// getting the ascent could be a lot of work. Don't get it if
|
|
// we are the root. The viewport doesn't care about it.
|
|
if (!(mState & NS_STATE_IS_ROOT)) {
|
|
ascent = GetBoxAscent(aState);
|
|
}
|
|
desiredSize.SetBlockStartAscent(ascent);
|
|
desiredSize.mOverflowAreas = GetOverflowAreas();
|
|
|
|
AddStateBits(NS_FRAME_IN_REFLOW);
|
|
// Set up a |reflowStatus| to pass into ReflowAbsoluteFrames
|
|
// (just a dummy value; hopefully that's OK)
|
|
nsReflowStatus reflowStatus = NS_FRAME_COMPLETE;
|
|
ReflowAbsoluteFrames(aState.PresContext(), desiredSize,
|
|
reflowState, reflowStatus);
|
|
RemoveStateBits(NS_FRAME_IN_REFLOW);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::DestroyFrom(nsIFrame* aDestructRoot)
|
|
{
|
|
// unregister access key
|
|
RegUnregAccessKey(false);
|
|
|
|
// clean up the container box's layout manager and child boxes
|
|
SetLayoutManager(nullptr);
|
|
|
|
nsContainerFrame::DestroyFrom(aDestructRoot);
|
|
}
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
nsresult
|
|
nsBoxFrame::SetDebug(nsBoxLayoutState& aState, bool aDebug)
|
|
{
|
|
// see if our state matches the given debug state
|
|
bool debugSet = mState & NS_STATE_CURRENTLY_IN_DEBUG;
|
|
bool debugChanged = (!aDebug && debugSet) || (aDebug && !debugSet);
|
|
|
|
// if it doesn't then tell each child below us the new debug state
|
|
if (debugChanged)
|
|
{
|
|
if (aDebug) {
|
|
mState |= NS_STATE_CURRENTLY_IN_DEBUG;
|
|
} else {
|
|
mState &= ~NS_STATE_CURRENTLY_IN_DEBUG;
|
|
}
|
|
|
|
SetDebugOnChildList(aState, mFirstChild, aDebug);
|
|
|
|
MarkIntrinsicISizesDirty();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
#endif
|
|
|
|
/* virtual */ void
|
|
nsBoxFrame::MarkIntrinsicISizesDirty()
|
|
{
|
|
SizeNeedsRecalc(mPrefSize);
|
|
SizeNeedsRecalc(mMinSize);
|
|
SizeNeedsRecalc(mMaxSize);
|
|
CoordNeedsRecalc(mFlex);
|
|
CoordNeedsRecalc(mAscent);
|
|
|
|
if (mLayoutManager) {
|
|
nsBoxLayoutState state(PresContext());
|
|
mLayoutManager->IntrinsicISizesDirty(this, state);
|
|
}
|
|
|
|
// Don't call base class method, since everything it does is within an
|
|
// IsBoxWrapped check.
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::RemoveFrame(ChildListID aListID,
|
|
nsIFrame* aOldFrame)
|
|
{
|
|
NS_PRECONDITION(aListID == kPrincipalList, "We don't support out-of-flow kids");
|
|
nsPresContext* presContext = PresContext();
|
|
nsBoxLayoutState state(presContext);
|
|
|
|
// remove the child frame
|
|
mFrames.RemoveFrame(aOldFrame);
|
|
|
|
// notify the layout manager
|
|
if (mLayoutManager)
|
|
mLayoutManager->ChildrenRemoved(this, state, aOldFrame);
|
|
|
|
// destroy the child frame
|
|
aOldFrame->Destroy();
|
|
|
|
// mark us dirty and generate a reflow command
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
|
|
NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::InsertFrames(ChildListID aListID,
|
|
nsIFrame* aPrevFrame,
|
|
nsFrameList& aFrameList)
|
|
{
|
|
NS_ASSERTION(!aPrevFrame || aPrevFrame->GetParent() == this,
|
|
"inserting after sibling frame with different parent");
|
|
NS_ASSERTION(!aPrevFrame || mFrames.ContainsFrame(aPrevFrame),
|
|
"inserting after sibling frame not in our child list");
|
|
NS_PRECONDITION(aListID == kPrincipalList, "We don't support out-of-flow kids");
|
|
nsBoxLayoutState state(PresContext());
|
|
|
|
// insert the child frames
|
|
const nsFrameList::Slice& newFrames =
|
|
mFrames.InsertFrames(this, aPrevFrame, aFrameList);
|
|
|
|
// notify the layout manager
|
|
if (mLayoutManager)
|
|
mLayoutManager->ChildrenInserted(this, state, aPrevFrame, newFrames);
|
|
|
|
// Make sure to check box order _after_ notifying the layout
|
|
// manager; otherwise the slice we give the layout manager will
|
|
// just be bogus. If the layout manager cares about the order, we
|
|
// just lose.
|
|
CheckBoxOrder();
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
// if we are in debug make sure our children are in debug as well.
|
|
if (mState & NS_STATE_CURRENTLY_IN_DEBUG)
|
|
SetDebugOnChildList(state, mFrames.FirstChild(), true);
|
|
#endif
|
|
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
|
|
NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
}
|
|
|
|
|
|
void
|
|
nsBoxFrame::AppendFrames(ChildListID aListID,
|
|
nsFrameList& aFrameList)
|
|
{
|
|
NS_PRECONDITION(aListID == kPrincipalList, "We don't support out-of-flow kids");
|
|
nsBoxLayoutState state(PresContext());
|
|
|
|
// append the new frames
|
|
const nsFrameList::Slice& newFrames = mFrames.AppendFrames(this, aFrameList);
|
|
|
|
// notify the layout manager
|
|
if (mLayoutManager)
|
|
mLayoutManager->ChildrenAppended(this, state, newFrames);
|
|
|
|
// Make sure to check box order _after_ notifying the layout
|
|
// manager; otherwise the slice we give the layout manager will
|
|
// just be bogus. If the layout manager cares about the order, we
|
|
// just lose.
|
|
CheckBoxOrder();
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
// if we are in debug make sure our children are in debug as well.
|
|
if (mState & NS_STATE_CURRENTLY_IN_DEBUG)
|
|
SetDebugOnChildList(state, mFrames.FirstChild(), true);
|
|
#endif
|
|
|
|
// XXXbz why is this NS_FRAME_FIRST_REFLOW check here?
|
|
if (!(GetStateBits() & NS_FRAME_FIRST_REFLOW)) {
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
|
|
NS_FRAME_HAS_DIRTY_CHILDREN);
|
|
}
|
|
}
|
|
|
|
/* virtual */ nsContainerFrame*
|
|
nsBoxFrame::GetContentInsertionFrame()
|
|
{
|
|
if (GetStateBits() & NS_STATE_BOX_WRAPS_KIDS_IN_BLOCK)
|
|
return GetFirstPrincipalChild()->GetContentInsertionFrame();
|
|
return nsContainerFrame::GetContentInsertionFrame();
|
|
}
|
|
|
|
nsresult
|
|
nsBoxFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType)
|
|
{
|
|
nsresult rv = nsContainerFrame::AttributeChanged(aNameSpaceID, aAttribute,
|
|
aModType);
|
|
|
|
// Ignore 'width', 'height', 'screenX', 'screenY' and 'sizemode' on a
|
|
// <window>.
|
|
if (mContent->IsAnyOfXULElements(nsGkAtoms::window,
|
|
nsGkAtoms::page,
|
|
nsGkAtoms::dialog,
|
|
nsGkAtoms::wizard) &&
|
|
(nsGkAtoms::width == aAttribute ||
|
|
nsGkAtoms::height == aAttribute ||
|
|
nsGkAtoms::screenX == aAttribute ||
|
|
nsGkAtoms::screenY == aAttribute ||
|
|
nsGkAtoms::sizemode == aAttribute)) {
|
|
return rv;
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::width ||
|
|
aAttribute == nsGkAtoms::height ||
|
|
aAttribute == nsGkAtoms::align ||
|
|
aAttribute == nsGkAtoms::valign ||
|
|
aAttribute == nsGkAtoms::left ||
|
|
aAttribute == nsGkAtoms::top ||
|
|
aAttribute == nsGkAtoms::right ||
|
|
aAttribute == nsGkAtoms::bottom ||
|
|
aAttribute == nsGkAtoms::start ||
|
|
aAttribute == nsGkAtoms::end ||
|
|
aAttribute == nsGkAtoms::minwidth ||
|
|
aAttribute == nsGkAtoms::maxwidth ||
|
|
aAttribute == nsGkAtoms::minheight ||
|
|
aAttribute == nsGkAtoms::maxheight ||
|
|
aAttribute == nsGkAtoms::flex ||
|
|
aAttribute == nsGkAtoms::orient ||
|
|
aAttribute == nsGkAtoms::pack ||
|
|
aAttribute == nsGkAtoms::dir ||
|
|
aAttribute == nsGkAtoms::mousethrough ||
|
|
aAttribute == nsGkAtoms::equalsize) {
|
|
|
|
if (aAttribute == nsGkAtoms::align ||
|
|
aAttribute == nsGkAtoms::valign ||
|
|
aAttribute == nsGkAtoms::orient ||
|
|
aAttribute == nsGkAtoms::pack ||
|
|
#ifdef DEBUG_LAYOUT
|
|
aAttribute == nsGkAtoms::debug ||
|
|
#endif
|
|
aAttribute == nsGkAtoms::dir) {
|
|
|
|
mValign = nsBoxFrame::vAlign_Top;
|
|
mHalign = nsBoxFrame::hAlign_Left;
|
|
|
|
bool orient = true;
|
|
GetInitialOrientation(orient);
|
|
if (orient)
|
|
mState |= NS_STATE_IS_HORIZONTAL;
|
|
else
|
|
mState &= ~NS_STATE_IS_HORIZONTAL;
|
|
|
|
bool normal = true;
|
|
GetInitialDirection(normal);
|
|
if (normal)
|
|
mState |= NS_STATE_IS_DIRECTION_NORMAL;
|
|
else
|
|
mState &= ~NS_STATE_IS_DIRECTION_NORMAL;
|
|
|
|
GetInitialVAlignment(mValign);
|
|
GetInitialHAlignment(mHalign);
|
|
|
|
bool equalSize = false;
|
|
GetInitialEqualSize(equalSize);
|
|
if (equalSize)
|
|
mState |= NS_STATE_EQUAL_SIZE;
|
|
else
|
|
mState &= ~NS_STATE_EQUAL_SIZE;
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
bool debug = mState & NS_STATE_SET_TO_DEBUG;
|
|
bool debugSet = GetInitialDebug(debug);
|
|
if (debugSet) {
|
|
mState |= NS_STATE_DEBUG_WAS_SET;
|
|
|
|
if (debug)
|
|
mState |= NS_STATE_SET_TO_DEBUG;
|
|
else
|
|
mState &= ~NS_STATE_SET_TO_DEBUG;
|
|
} else {
|
|
mState &= ~NS_STATE_DEBUG_WAS_SET;
|
|
}
|
|
#endif
|
|
|
|
bool autostretch = !!(mState & NS_STATE_AUTO_STRETCH);
|
|
GetInitialAutoStretch(autostretch);
|
|
if (autostretch)
|
|
mState |= NS_STATE_AUTO_STRETCH;
|
|
else
|
|
mState &= ~NS_STATE_AUTO_STRETCH;
|
|
}
|
|
else if (aAttribute == nsGkAtoms::left ||
|
|
aAttribute == nsGkAtoms::top ||
|
|
aAttribute == nsGkAtoms::right ||
|
|
aAttribute == nsGkAtoms::bottom ||
|
|
aAttribute == nsGkAtoms::start ||
|
|
aAttribute == nsGkAtoms::end) {
|
|
mState &= ~NS_STATE_STACK_NOT_POSITIONED;
|
|
}
|
|
else if (aAttribute == nsGkAtoms::mousethrough) {
|
|
UpdateMouseThrough();
|
|
}
|
|
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eStyleChange, NS_FRAME_IS_DIRTY);
|
|
}
|
|
else if (aAttribute == nsGkAtoms::ordinal) {
|
|
nsBoxLayoutState state(PresContext());
|
|
nsIFrame* parent = GetParentBox(this);
|
|
// If our parent is not a box, there's not much we can do... but in that
|
|
// case our ordinal doesn't matter anyway, so that's ok.
|
|
// Also don't bother with popup frames since they are kept on the
|
|
// kPopupList and RelayoutChildAtOrdinal() only handles
|
|
// principal children.
|
|
if (parent && !(GetStateBits() & NS_FRAME_OUT_OF_FLOW) &&
|
|
StyleDisplay()->mDisplay != NS_STYLE_DISPLAY_POPUP) {
|
|
parent->RelayoutChildAtOrdinal(state, this);
|
|
// XXXldb Should this instead be a tree change on the child or parent?
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(parent, nsIPresShell::eStyleChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
}
|
|
}
|
|
// If the accesskey changed, register for the new value
|
|
// The old value has been unregistered in nsXULElement::SetAttr
|
|
else if (aAttribute == nsGkAtoms::accesskey) {
|
|
RegUnregAccessKey(true);
|
|
}
|
|
else if (aAttribute == nsGkAtoms::rows &&
|
|
mContent->IsXULElement(nsGkAtoms::tree)) {
|
|
// Reflow ourselves and all our children if "rows" changes, since
|
|
// nsTreeBodyFrame's layout reads this from its parent (this frame).
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eStyleChange, NS_FRAME_IS_DIRTY);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
void
|
|
nsBoxFrame::GetDebugPref()
|
|
{
|
|
gDebug = Preferences::GetBool("xul.debug.box");
|
|
}
|
|
|
|
class nsDisplayXULDebug : public nsDisplayItem {
|
|
public:
|
|
nsDisplayXULDebug(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame) :
|
|
nsDisplayItem(aBuilder, aFrame) {
|
|
MOZ_COUNT_CTOR(nsDisplayXULDebug);
|
|
}
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
virtual ~nsDisplayXULDebug() {
|
|
MOZ_COUNT_DTOR(nsDisplayXULDebug);
|
|
}
|
|
#endif
|
|
|
|
virtual void HitTest(nsDisplayListBuilder* aBuilder, nsRect aRect,
|
|
HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames) {
|
|
nsPoint rectCenter(aRect.x + aRect.width / 2, aRect.y + aRect.height / 2);
|
|
static_cast<nsBoxFrame*>(mFrame)->
|
|
DisplayDebugInfoFor(this, rectCenter - ToReferenceFrame());
|
|
aOutFrames->AppendElement(this);
|
|
}
|
|
virtual void Paint(nsDisplayListBuilder* aBuilder
|
|
nsRenderingContext* aCtx);
|
|
NS_DISPLAY_DECL_NAME("XULDebug", TYPE_XUL_DEBUG)
|
|
};
|
|
|
|
void
|
|
nsDisplayXULDebug::Paint(nsDisplayListBuilder* aBuilder,
|
|
nsRenderingContext* aCtx)
|
|
{
|
|
static_cast<nsBoxFrame*>(mFrame)->
|
|
PaintXULDebugOverlay(*aCtx->GetDrawTarget(), ToReferenceFrame());
|
|
}
|
|
|
|
static void
|
|
PaintXULDebugBackground(nsIFrame* aFrame, nsRenderingContext* aCtx,
|
|
const nsRect& aDirtyRect, nsPoint aPt)
|
|
{
|
|
static_cast<nsBoxFrame*>(aFrame)->PaintXULDebugBackground(*aCtx, aPt);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
nsBoxFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists)
|
|
{
|
|
bool forceLayer = false;
|
|
|
|
if (GetContent()->IsXULElement()) {
|
|
// forcelayer is only supported on XUL elements with box layout
|
|
if (GetContent()->HasAttr(kNameSpaceID_None, nsGkAtoms::layer)) {
|
|
forceLayer = true;
|
|
}
|
|
// Check for frames that are marked as a part of the region used
|
|
// in calculating glass margins on Windows.
|
|
const nsStyleDisplay* styles = StyleDisplay();
|
|
if (styles && styles->mAppearance == NS_THEME_WIN_EXCLUDE_GLASS) {
|
|
aBuilder->AddWindowExcludeGlassRegion(
|
|
nsRect(aBuilder->ToReferenceFrame(this), GetSize()));
|
|
}
|
|
}
|
|
|
|
nsDisplayListCollection tempLists;
|
|
const nsDisplayListSet& destination = forceLayer ? tempLists : aLists;
|
|
|
|
DisplayBorderBackgroundOutline(aBuilder, destination);
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
if (mState & NS_STATE_CURRENTLY_IN_DEBUG) {
|
|
destination.BorderBackground()->AppendNewToTop(new (aBuilder)
|
|
nsDisplayGeneric(aBuilder, this, PaintXULDebugBackground,
|
|
"XULDebugBackground"));
|
|
destination.Outlines()->AppendNewToTop(new (aBuilder)
|
|
nsDisplayXULDebug(aBuilder, this));
|
|
}
|
|
#endif
|
|
|
|
BuildDisplayListForChildren(aBuilder, aDirtyRect, destination);
|
|
|
|
// see if we have to draw a selection frame around this container
|
|
DisplaySelectionOverlay(aBuilder, destination.Content());
|
|
|
|
if (forceLayer) {
|
|
// This is a bit of a hack. Collect up all descendant display items
|
|
// and merge them into a single Content() list. This can cause us
|
|
// to violate CSS stacking order, but forceLayer is a magic
|
|
// XUL-only extension anyway.
|
|
nsDisplayList masterList;
|
|
masterList.AppendToTop(tempLists.BorderBackground());
|
|
masterList.AppendToTop(tempLists.BlockBorderBackgrounds());
|
|
masterList.AppendToTop(tempLists.Floats());
|
|
masterList.AppendToTop(tempLists.Content());
|
|
masterList.AppendToTop(tempLists.PositionedDescendants());
|
|
masterList.AppendToTop(tempLists.Outlines());
|
|
|
|
// Wrap the list to make it its own layer
|
|
aLists.Content()->AppendNewToTop(new (aBuilder)
|
|
nsDisplayOwnLayer(aBuilder, this, &masterList));
|
|
}
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists)
|
|
{
|
|
nsIFrame* kid = mFrames.FirstChild();
|
|
// Put each child's background onto the BlockBorderBackgrounds list
|
|
// to emulate the existing two-layer XUL painting scheme.
|
|
nsDisplayListSet set(aLists, aLists.BlockBorderBackgrounds());
|
|
// The children should be in the right order
|
|
while (kid) {
|
|
BuildDisplayListForChild(aBuilder, kid, aDirtyRect, set);
|
|
kid = kid->GetNextSibling();
|
|
}
|
|
}
|
|
|
|
// REVIEW: PaintChildren did a few things none of which are a big deal
|
|
// anymore:
|
|
// * Paint some debugging rects for this frame.
|
|
// This is done by nsDisplayXULDebugBackground, which goes in the
|
|
// BorderBackground() layer so it isn't clipped by OVERFLOW_CLIP.
|
|
// * Apply OVERFLOW_CLIP to the children.
|
|
// This is now in nsFrame::BuildDisplayListForStackingContext/Child.
|
|
// * Actually paint the children.
|
|
// Moved to BuildDisplayList.
|
|
// * Paint per-kid debug information.
|
|
// This is done by nsDisplayXULDebug, which is in the Outlines()
|
|
// layer so it goes on top. This means it is not clipped by OVERFLOW_CLIP,
|
|
// whereas it did used to respect OVERFLOW_CLIP, but too bad.
|
|
#ifdef DEBUG_LAYOUT
|
|
void
|
|
nsBoxFrame::PaintXULDebugBackground(nsRenderingContext& aRenderingContext,
|
|
nsPoint aPt)
|
|
{
|
|
nsMargin border;
|
|
GetBorder(border);
|
|
|
|
nsMargin debugBorder;
|
|
nsMargin debugMargin;
|
|
nsMargin debugPadding;
|
|
|
|
bool isHorizontal = IsHorizontal();
|
|
|
|
GetDebugBorder(debugBorder);
|
|
PixelMarginToTwips(debugBorder);
|
|
|
|
GetDebugMargin(debugMargin);
|
|
PixelMarginToTwips(debugMargin);
|
|
|
|
GetDebugPadding(debugPadding);
|
|
PixelMarginToTwips(debugPadding);
|
|
|
|
nsRect inner(mRect);
|
|
inner.MoveTo(aPt);
|
|
inner.Deflate(debugMargin);
|
|
inner.Deflate(border);
|
|
//nsRect borderRect(inner);
|
|
|
|
int32_t appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
|
|
|
|
ColorPattern color(ToDeviceColor(isHorizontal ? Color(0.f, 0.f, 1.f, 1.f) :
|
|
Color(1.f, 0.f, 0.f, 1.f)));
|
|
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
|
|
//left
|
|
nsRect r(inner);
|
|
r.width = debugBorder.left;
|
|
drawTarget->FillRect(NSRectToRect(r, appUnitsPerDevPixel), color);
|
|
|
|
// top
|
|
r = inner;
|
|
r.height = debugBorder.top;
|
|
drawTarget->FillRect(NSRectToRect(r, appUnitsPerDevPixel), color);
|
|
|
|
//right
|
|
r = inner;
|
|
r.x = r.x + r.width - debugBorder.right;
|
|
r.width = debugBorder.right;
|
|
drawTarget->FillRect(NSRectToRect(r, appUnitsPerDevPixel), color);
|
|
|
|
//bottom
|
|
r = inner;
|
|
r.y = r.y + r.height - debugBorder.bottom;
|
|
r.height = debugBorder.bottom;
|
|
drawTarget->FillRect(NSRectToRect(r, appUnitsPerDevPixel), color);
|
|
|
|
// if we have dirty children or we are dirty
|
|
// place a green border around us.
|
|
if (NS_SUBTREE_DIRTY(this)) {
|
|
nsRect dirty(inner);
|
|
ColorPattern green(ToDeviceColor(Color(0.f, 1.f, 0.f, 1.f)));
|
|
drawTarget->StrokeRect(NSRectToRect(dirty, appUnitsPerDevPixel), green);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::PaintXULDebugOverlay(DrawTarget& aDrawTarget, nsPoint aPt)
|
|
{
|
|
nsMargin border;
|
|
GetBorder(border);
|
|
|
|
nsMargin debugMargin;
|
|
GetDebugMargin(debugMargin);
|
|
PixelMarginToTwips(debugMargin);
|
|
|
|
nsRect inner(mRect);
|
|
inner.MoveTo(aPt);
|
|
inner.Deflate(debugMargin);
|
|
inner.Deflate(border);
|
|
|
|
nscoord onePixel = GetPresContext()->IntScaledPixelsToTwips(1);
|
|
|
|
kid = nsBox::GetChildBox(this);
|
|
while (nullptr != kid) {
|
|
bool isHorizontal = IsHorizontal();
|
|
|
|
nscoord x, y, borderSize, spacerSize;
|
|
|
|
nsRect cr(kid->mRect);
|
|
nsMargin margin;
|
|
kid->GetMargin(margin);
|
|
cr.Inflate(margin);
|
|
|
|
if (isHorizontal)
|
|
{
|
|
cr.y = inner.y;
|
|
x = cr.x;
|
|
y = cr.y + onePixel;
|
|
spacerSize = debugBorder.top - onePixel*4;
|
|
} else {
|
|
cr.x = inner.x;
|
|
x = cr.y;
|
|
y = cr.x + onePixel;
|
|
spacerSize = debugBorder.left - onePixel*4;
|
|
}
|
|
|
|
nsBoxLayoutState state(GetPresContext());
|
|
nscoord flex = kid->GetFlex(state);
|
|
|
|
if (!kid->IsCollapsed()) {
|
|
if (isHorizontal)
|
|
borderSize = cr.width;
|
|
else
|
|
borderSize = cr.height;
|
|
|
|
DrawSpacer(GetPresContext(), aDrawTarget, isHorizontal, flex, x, y, borderSize, spacerSize);
|
|
}
|
|
|
|
kid = GetNextBox(kid);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
void
|
|
nsBoxFrame::GetBoxName(nsAutoString& aName)
|
|
{
|
|
GetFrameName(aName);
|
|
}
|
|
#endif
|
|
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
nsresult
|
|
nsBoxFrame::GetFrameName(nsAString& aResult) const
|
|
{
|
|
return MakeFrameName(NS_LITERAL_STRING("Box"), aResult);
|
|
}
|
|
#endif
|
|
|
|
nsIAtom*
|
|
nsBoxFrame::GetType() const
|
|
{
|
|
return nsGkAtoms::boxFrame;
|
|
}
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
nsresult
|
|
nsBoxFrame::GetDebug(bool& aDebug)
|
|
{
|
|
aDebug = (mState & NS_STATE_CURRENTLY_IN_DEBUG);
|
|
return NS_OK;
|
|
}
|
|
#endif
|
|
|
|
// REVIEW: nsBoxFrame::GetFrameForPoint is a problem because of 'mousethrough'
|
|
// attribute support. Here's how it works:
|
|
// * For each child frame F, we determine the target frame T(F) by recursively
|
|
// invoking GetFrameForPoint on the child
|
|
// * Let F' be the last child frame such that T(F') doesn't have mousethrough.
|
|
// If F' exists, return T(F')
|
|
// * Otherwise let F'' be the first child frame such that T(F'') is non-null.
|
|
// If F'' exists, return T(F'')
|
|
// * Otherwise return this frame, if this frame contains the point
|
|
// * Otherwise return null
|
|
// It's not clear how this should work for more complex z-ordering situations.
|
|
// The basic principle seems to be that if a frame F has a descendant
|
|
// 'mousethrough' frame that includes the target position, then F
|
|
// will not receive events (unless it overrides GetFrameForPoint).
|
|
// A 'mousethrough' frame will only receive an event if, after applying that rule,
|
|
// all eligible frames are 'mousethrough'; the bottom-most inner-most 'mousethrough'
|
|
// frame is then chosen (the first eligible frame reached in a
|
|
// traversal of the frame tree --- pre/post is irrelevant since ancestors
|
|
// of the mousethrough frames can't be eligible).
|
|
// IMHO this is very bogus and adds a great deal of complexity for something
|
|
// that is very rarely used. So I'm redefining 'mousethrough' to the following:
|
|
// a frame with mousethrough is transparent to mouse events. This is compatible
|
|
// with the way 'mousethrough' is used in Seamonkey's navigator.xul and
|
|
// Firefox's browser.xul. The only other place it's used is in the 'expander'
|
|
// XBL binding, which in our tree is only used by Thunderbird SMIME Advanced
|
|
// Preferences, and I can't figure out what that does, so I'll have to test it.
|
|
// If it's broken I'll probably just change the binding to use it more sensibly.
|
|
// This new behaviour is implemented in nsDisplayList::HitTest.
|
|
// REVIEW: This debug-box stuff is annoying. I'm just going to put debug boxes
|
|
// in the outline layer and avoid GetDebugBoxAt.
|
|
|
|
// REVIEW: GetCursor had debug-only event dumping code. I have replaced it
|
|
// with instrumentation in nsDisplayXULDebug.
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
void
|
|
nsBoxFrame::DrawLine(DrawTarget& aDrawTarget, bool aHorizontal, nscoord x1, nscoord y1, nscoord x2, nscoord y2)
|
|
{
|
|
nsPoint p1(x1, y1);
|
|
nsPoint p2(x2, y2);
|
|
if (!aHorizontal) {
|
|
Swap(p1.x, p1.y);
|
|
Swap(p2.x, p2.y);
|
|
}
|
|
ColorPattern white(ToDeviceColor(Color(1.f, 1.f, 1.f, 1.f)));
|
|
StrokeLineWithSnapping(p1, p2, PresContext()->AppUnitsPerDevPixel(),
|
|
aDrawTarget, color);
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::FillRect(DrawTarget& aDrawTarget, bool aHorizontal, nscoord x, nscoord y, nscoord width, nscoord height)
|
|
{
|
|
Rect rect = NSRectToSnappedRect(aHorizontal ? nsRect(x, y, width, height) :
|
|
nsRect(y, x, height, width),
|
|
PresContext()->AppUnitsPerDevPixel(),
|
|
aDrawTarget);
|
|
ColorPattern white(ToDeviceColor(Color(1.f, 1.f, 1.f, 1.f)));
|
|
aDrawTarget.FillRect(rect, white);
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::DrawSpacer(nsPresContext* aPresContext, DrawTarget& aDrawTarget,
|
|
bool aHorizontal, int32_t flex, nscoord x, nscoord y,
|
|
nscoord size, nscoord spacerSize)
|
|
{
|
|
nscoord onePixel = aPresContext->IntScaledPixelsToTwips(1);
|
|
|
|
// if we do draw the coils
|
|
int distance = 0;
|
|
int center = 0;
|
|
int offset = 0;
|
|
int coilSize = COIL_SIZE*onePixel;
|
|
int halfSpacer = spacerSize/2;
|
|
|
|
distance = size;
|
|
center = y + halfSpacer;
|
|
offset = x;
|
|
|
|
int coils = distance/coilSize;
|
|
|
|
int halfCoilSize = coilSize/2;
|
|
|
|
if (flex == 0) {
|
|
DrawLine(aDrawTarget, aHorizontal, x,y + spacerSize/2, x + size, y + spacerSize/2);
|
|
} else {
|
|
for (int i=0; i < coils; i++)
|
|
{
|
|
DrawLine(aDrawTarget, aHorizontal, offset, center+halfSpacer, offset+halfCoilSize, center-halfSpacer);
|
|
DrawLine(aDrawTarget, aHorizontal, offset+halfCoilSize, center-halfSpacer, offset+coilSize, center+halfSpacer);
|
|
|
|
offset += coilSize;
|
|
}
|
|
}
|
|
|
|
FillRect(aDrawTarget, aHorizontal, x + size - spacerSize/2, y, spacerSize/2, spacerSize);
|
|
FillRect(aDrawTarget, aHorizontal, x, y, spacerSize/2, spacerSize);
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::GetDebugBorder(nsMargin& aInset)
|
|
{
|
|
aInset.SizeTo(2,2,2,2);
|
|
|
|
if (IsHorizontal())
|
|
aInset.top = 10;
|
|
else
|
|
aInset.left = 10;
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::GetDebugMargin(nsMargin& aInset)
|
|
{
|
|
aInset.SizeTo(2,2,2,2);
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::GetDebugPadding(nsMargin& aPadding)
|
|
{
|
|
aPadding.SizeTo(2,2,2,2);
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::PixelMarginToTwips(nsMargin& aMarginPixels)
|
|
{
|
|
nscoord onePixel = nsPresContext::CSSPixelsToAppUnits(1);
|
|
aMarginPixels.left *= onePixel;
|
|
aMarginPixels.right *= onePixel;
|
|
aMarginPixels.top *= onePixel;
|
|
aMarginPixels.bottom *= onePixel;
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::GetValue(nsPresContext* aPresContext, const nsSize& a, const nsSize& b, char* ch)
|
|
{
|
|
float p2t = aPresContext->ScaledPixelsToTwips();
|
|
|
|
char width[100];
|
|
char height[100];
|
|
|
|
if (a.width == NS_INTRINSICSIZE)
|
|
sprintf(width,"%s","INF");
|
|
else
|
|
sprintf(width,"%d", nscoord(a.width/*/p2t*/));
|
|
|
|
if (a.height == NS_INTRINSICSIZE)
|
|
sprintf(height,"%s","INF");
|
|
else
|
|
sprintf(height,"%d", nscoord(a.height/*/p2t*/));
|
|
|
|
|
|
sprintf(ch, "(%s%s, %s%s)", width, (b.width != NS_INTRINSICSIZE ? "[SET]" : ""),
|
|
height, (b.height != NS_INTRINSICSIZE ? "[SET]" : ""));
|
|
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::GetValue(nsPresContext* aPresContext, int32_t a, int32_t b, char* ch)
|
|
{
|
|
if (a == NS_INTRINSICSIZE)
|
|
sprintf(ch, "%d[SET]", b);
|
|
else
|
|
sprintf(ch, "%d", a);
|
|
}
|
|
|
|
nsresult
|
|
nsBoxFrame::DisplayDebugInfoFor(nsIFrame* aBox,
|
|
nsPoint& aPoint)
|
|
{
|
|
nsBoxLayoutState state(GetPresContext());
|
|
|
|
nscoord x = aPoint.x;
|
|
nscoord y = aPoint.y;
|
|
|
|
// get the area inside our border but not our debug margins.
|
|
nsRect insideBorder(aBox->mRect);
|
|
insideBorder.MoveTo(0,0):
|
|
nsMargin border(0,0,0,0);
|
|
aBox->GetBorderAndPadding(border);
|
|
insideBorder.Deflate(border);
|
|
|
|
bool isHorizontal = IsHorizontal();
|
|
|
|
if (!insideBorder.Contains(nsPoint(x,y)))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
//printf("%%%%%% inside box %%%%%%%\n");
|
|
|
|
int count = 0;
|
|
nsIFrame* child = nsBox::GetChildBox(aBox);
|
|
|
|
nsMargin m;
|
|
nsMargin m2;
|
|
GetDebugBorder(m);
|
|
PixelMarginToTwips(m);
|
|
|
|
GetDebugMargin(m2);
|
|
PixelMarginToTwips(m2);
|
|
|
|
m += m2;
|
|
|
|
if ((isHorizontal && y < insideBorder.y + m.top) ||
|
|
(!isHorizontal && x < insideBorder.x + m.left)) {
|
|
//printf("**** inside debug border *******\n");
|
|
while (child)
|
|
{
|
|
const nsRect& r = child->mRect;
|
|
|
|
// if we are not in the child. But in the spacer above the child.
|
|
if ((isHorizontal && x >= r.x && x < r.x + r.width) ||
|
|
(!isHorizontal && y >= r.y && y < r.y + r.height)) {
|
|
aCursor = NS_STYLE_CURSOR_POINTER;
|
|
// found it but we already showed it.
|
|
if (mDebugChild == child)
|
|
return NS_OK;
|
|
|
|
if (aBox->GetContent()) {
|
|
printf("---------------\n");
|
|
DumpBox(stdout);
|
|
printf("\n");
|
|
}
|
|
|
|
if (child->GetContent()) {
|
|
printf("child #%d: ", count);
|
|
child->DumpBox(stdout);
|
|
printf("\n");
|
|
}
|
|
|
|
mDebugChild = child;
|
|
|
|
nsSize prefSizeCSS(NS_INTRINSICSIZE, NS_INTRINSICSIZE);
|
|
nsSize minSizeCSS (NS_INTRINSICSIZE, NS_INTRINSICSIZE);
|
|
nsSize maxSizeCSS (NS_INTRINSICSIZE, NS_INTRINSICSIZE);
|
|
nscoord flexCSS = NS_INTRINSICSIZE;
|
|
|
|
bool widthSet, heightSet;
|
|
nsIFrame::AddCSSPrefSize(child, prefSizeCSS, widthSet, heightSet);
|
|
nsIFrame::AddCSSMinSize (state, child, minSizeCSS, widthSet, heightSet);
|
|
nsIFrame::AddCSSMaxSize (child, maxSizeCSS, widthSet, heightSet);
|
|
nsIFrame::AddCSSFlex (state, child, flexCSS);
|
|
|
|
nsSize prefSize = child->GetPrefSize(state);
|
|
nsSize minSize = child->GetMinSize(state);
|
|
nsSize maxSize = child->GetMaxSize(state);
|
|
nscoord flexSize = child->GetFlex(state);
|
|
nscoord ascentSize = child->GetBoxAscent(state);
|
|
|
|
char min[100];
|
|
char pref[100];
|
|
char max[100];
|
|
char calc[100];
|
|
char flex[100];
|
|
char ascent[100];
|
|
|
|
nsSize actualSize;
|
|
GetFrameSizeWithMargin(child, actualSize);
|
|
nsSize actualSizeCSS (NS_INTRINSICSIZE, NS_INTRINSICSIZE);
|
|
|
|
GetValue(aPresContext, minSize, minSizeCSS, min);
|
|
GetValue(aPresContext, prefSize, prefSizeCSS, pref);
|
|
GetValue(aPresContext, maxSize, maxSizeCSS, max);
|
|
GetValue(aPresContext, actualSize, actualSizeCSS, calc);
|
|
GetValue(aPresContext, flexSize, flexCSS, flex);
|
|
GetValue(aPresContext, ascentSize, NS_INTRINSICSIZE, ascent);
|
|
|
|
|
|
printf("min%s, pref%s, max%s, actual%s, flex=%s, ascent=%s\n\n",
|
|
min,
|
|
pref,
|
|
max,
|
|
calc,
|
|
flex,
|
|
ascent
|
|
);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
child = GetNextBox(child);
|
|
count++;
|
|
}
|
|
} else {
|
|
}
|
|
|
|
mDebugChild = nullptr;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::SetDebugOnChildList(nsBoxLayoutState& aState, nsIFrame* aChild, bool aDebug)
|
|
{
|
|
nsIFrame* child = nsBox::GetChildBox(this);
|
|
while (child)
|
|
{
|
|
child->SetDebug(aState, aDebug);
|
|
child = GetNextBox(child);
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsBoxFrame::GetFrameSizeWithMargin(nsIFrame* aBox, nsSize& aSize)
|
|
{
|
|
nsRect rect(aBox->GetRect());
|
|
nsMargin margin(0,0,0,0);
|
|
aBox->GetMargin(margin);
|
|
rect.Inflate(margin);
|
|
aSize.width = rect.width;
|
|
aSize.height = rect.height;
|
|
return NS_OK;
|
|
}
|
|
#endif
|
|
|
|
// If you make changes to this function, check its counterparts
|
|
// in nsTextBoxFrame and nsXULLabelFrame
|
|
void
|
|
nsBoxFrame::RegUnregAccessKey(bool aDoReg)
|
|
{
|
|
MOZ_ASSERT(mContent);
|
|
|
|
// only support accesskeys for the following elements
|
|
if (!mContent->IsAnyOfXULElements(nsGkAtoms::button,
|
|
nsGkAtoms::toolbarbutton,
|
|
nsGkAtoms::checkbox,
|
|
nsGkAtoms::textbox,
|
|
nsGkAtoms::tab,
|
|
nsGkAtoms::radio)) {
|
|
return;
|
|
}
|
|
|
|
nsAutoString accessKey;
|
|
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey, accessKey);
|
|
|
|
if (accessKey.IsEmpty())
|
|
return;
|
|
|
|
// With a valid PresContext we can get the ESM
|
|
// and register the access key
|
|
EventStateManager* esm = PresContext()->EventStateManager();
|
|
|
|
uint32_t key = accessKey.First();
|
|
if (aDoReg)
|
|
esm->RegisterAccessKey(mContent, key);
|
|
else
|
|
esm->UnregisterAccessKey(mContent, key);
|
|
}
|
|
|
|
bool
|
|
nsBoxFrame::SupportsOrdinalsInChildren()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// Helper less-than-or-equal function, used in CheckBoxOrder() as a
|
|
// template-parameter for the sorting functions.
|
|
bool
|
|
IsBoxOrdinalLEQ(nsIFrame* aFrame1,
|
|
nsIFrame* aFrame2)
|
|
{
|
|
// If we've got a placeholder frame, use its out-of-flow frame's ordinal val.
|
|
nsIFrame* aRealFrame1 = nsPlaceholderFrame::GetRealFrameFor(aFrame1);
|
|
nsIFrame* aRealFrame2 = nsPlaceholderFrame::GetRealFrameFor(aFrame2);
|
|
return aRealFrame1->GetOrdinal() <= aRealFrame2->GetOrdinal();
|
|
}
|
|
|
|
void
|
|
nsBoxFrame::CheckBoxOrder()
|
|
{
|
|
if (SupportsOrdinalsInChildren() &&
|
|
!nsIFrame::IsFrameListSorted<IsBoxOrdinalLEQ>(mFrames)) {
|
|
nsIFrame::SortFrameList<IsBoxOrdinalLEQ>(mFrames);
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsBoxFrame::LayoutChildAt(nsBoxLayoutState& aState, nsIFrame* aBox, const nsRect& aRect)
|
|
{
|
|
// get the current rect
|
|
nsRect oldRect(aBox->GetRect());
|
|
aBox->SetBounds(aState, aRect);
|
|
|
|
bool layout = NS_SUBTREE_DIRTY(aBox);
|
|
|
|
if (layout || (oldRect.width != aRect.width || oldRect.height != aRect.height)) {
|
|
return aBox->Layout(aState);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsBoxFrame::RelayoutChildAtOrdinal(nsBoxLayoutState& aState, nsIFrame* aChild)
|
|
{
|
|
if (!SupportsOrdinalsInChildren())
|
|
return NS_OK;
|
|
|
|
uint32_t ord = aChild->GetOrdinal();
|
|
|
|
nsIFrame* child = mFrames.FirstChild();
|
|
nsIFrame* newPrevSib = nullptr;
|
|
|
|
while (child) {
|
|
if (ord < child->GetOrdinal()) {
|
|
break;
|
|
}
|
|
|
|
if (child != aChild) {
|
|
newPrevSib = child;
|
|
}
|
|
|
|
child = GetNextBox(child);
|
|
}
|
|
|
|
if (aChild->GetPrevSibling() == newPrevSib) {
|
|
// This box is not moving.
|
|
return NS_OK;
|
|
}
|
|
|
|
// Take |aChild| out of its old position in the child list.
|
|
mFrames.RemoveFrame(aChild);
|
|
|
|
// Insert it after |newPrevSib| or at the start if it's null.
|
|
mFrames.InsertFrame(nullptr, newPrevSib, aChild);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
/**
|
|
* This wrapper class lets us redirect mouse hits from descendant frames
|
|
* of a menu to the menu itself, if they didn't specify 'allowevents'.
|
|
*
|
|
* The wrapper simply turns a hit on a descendant element
|
|
* into a hit on the menu itself, unless there is an element between the target
|
|
* and the menu with the "allowevents" attribute.
|
|
*
|
|
* This is used by nsMenuFrame and nsTreeColFrame.
|
|
*
|
|
* Note that turning a hit on a descendant element into nullptr, so events
|
|
* could fall through to the menu background, might be an appealing simplification
|
|
* but it would mean slightly strange behaviour in some cases, because grabber
|
|
* wrappers can be created for many individual lists and items, so the exact
|
|
* fallthrough behaviour would be complex. E.g. an element with "allowevents"
|
|
* on top of the Content() list could receive the event even if it was covered
|
|
* by a PositionedDescenants() element without "allowevents". It is best to
|
|
* never convert a non-null hit into null.
|
|
*/
|
|
// REVIEW: This is roughly of what nsMenuFrame::GetFrameForPoint used to do.
|
|
// I've made 'allowevents' affect child elements because that seems the only
|
|
// reasonable thing to do.
|
|
class nsDisplayXULEventRedirector : public nsDisplayWrapList {
|
|
public:
|
|
nsDisplayXULEventRedirector(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayItem* aItem,
|
|
nsIFrame* aTargetFrame)
|
|
: nsDisplayWrapList(aBuilder, aFrame, aItem), mTargetFrame(aTargetFrame) {}
|
|
nsDisplayXULEventRedirector(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
nsIFrame* aTargetFrame)
|
|
: nsDisplayWrapList(aBuilder, aFrame, aList), mTargetFrame(aTargetFrame) {}
|
|
virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
|
|
HitTestState* aState,
|
|
nsTArray<nsIFrame*> *aOutFrames) override;
|
|
virtual bool ShouldFlattenAway(nsDisplayListBuilder* aBuilder) override {
|
|
return false;
|
|
}
|
|
NS_DISPLAY_DECL_NAME("XULEventRedirector", TYPE_XUL_EVENT_REDIRECTOR)
|
|
private:
|
|
nsIFrame* mTargetFrame;
|
|
};
|
|
|
|
void nsDisplayXULEventRedirector::HitTest(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aRect, HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames)
|
|
{
|
|
nsTArray<nsIFrame*> outFrames;
|
|
mList.HitTest(aBuilder, aRect, aState, &outFrames);
|
|
|
|
bool topMostAdded = false;
|
|
uint32_t localLength = outFrames.Length();
|
|
|
|
for (uint32_t i = 0; i < localLength; i++) {
|
|
|
|
for (nsIContent* content = outFrames.ElementAt(i)->GetContent();
|
|
content && content != mTargetFrame->GetContent();
|
|
content = content->GetParent()) {
|
|
if (content->AttrValueIs(kNameSpaceID_None, nsGkAtoms::allowevents,
|
|
nsGkAtoms::_true, eCaseMatters)) {
|
|
// Events are allowed on 'frame', so let it go.
|
|
aOutFrames->AppendElement(outFrames.ElementAt(i));
|
|
topMostAdded = true;
|
|
}
|
|
}
|
|
|
|
// If there was no hit on the topmost frame or its ancestors,
|
|
// add the target frame itself as the first candidate (see bug 562554).
|
|
if (!topMostAdded) {
|
|
topMostAdded = true;
|
|
aOutFrames->AppendElement(mTargetFrame);
|
|
}
|
|
}
|
|
}
|
|
|
|
class nsXULEventRedirectorWrapper : public nsDisplayWrapper
|
|
{
|
|
public:
|
|
explicit nsXULEventRedirectorWrapper(nsIFrame* aTargetFrame)
|
|
: mTargetFrame(aTargetFrame) {}
|
|
virtual nsDisplayItem* WrapList(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsDisplayList* aList) override {
|
|
return new (aBuilder)
|
|
nsDisplayXULEventRedirector(aBuilder, aFrame, aList, mTargetFrame);
|
|
}
|
|
virtual nsDisplayItem* WrapItem(nsDisplayListBuilder* aBuilder,
|
|
nsDisplayItem* aItem) override {
|
|
return new (aBuilder)
|
|
nsDisplayXULEventRedirector(aBuilder, aItem->Frame(), aItem,
|
|
mTargetFrame);
|
|
}
|
|
private:
|
|
nsIFrame* mTargetFrame;
|
|
};
|
|
|
|
void
|
|
nsBoxFrame::WrapListsInRedirector(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aIn,
|
|
const nsDisplayListSet& aOut)
|
|
{
|
|
nsXULEventRedirectorWrapper wrapper(this);
|
|
wrapper.WrapLists(aBuilder, this, aIn, aOut);
|
|
}
|
|
|
|
bool
|
|
nsBoxFrame::GetEventPoint(WidgetGUIEvent* aEvent, nsPoint &aPoint) {
|
|
LayoutDeviceIntPoint refPoint;
|
|
bool res = GetEventPoint(aEvent, refPoint);
|
|
aPoint = nsLayoutUtils::GetEventCoordinatesRelativeTo(
|
|
aEvent, refPoint, this);
|
|
return res;
|
|
}
|
|
|
|
bool
|
|
nsBoxFrame::GetEventPoint(WidgetGUIEvent* aEvent, LayoutDeviceIntPoint& aPoint) {
|
|
NS_ENSURE_TRUE(aEvent, false);
|
|
|
|
WidgetTouchEvent* touchEvent = aEvent->AsTouchEvent();
|
|
if (touchEvent) {
|
|
// return false if there is more than one touch on the page, or if
|
|
// we can't find a touch point
|
|
if (touchEvent->touches.Length() != 1) {
|
|
return false;
|
|
}
|
|
|
|
dom::Touch* touch = touchEvent->touches.SafeElementAt(0);
|
|
if (!touch) {
|
|
return false;
|
|
}
|
|
aPoint = touch->mRefPoint;
|
|
} else {
|
|
aPoint = aEvent->refPoint;
|
|
}
|
|
return true;
|
|
}
|