1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/xul/nsDeckFrame.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,202 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +//
1.10 +// Eric Vaughan
1.11 +// Netscape Communications
1.12 +//
1.13 +// See documentation in associated header file
1.14 +//
1.15 +
1.16 +#include "nsDeckFrame.h"
1.17 +#include "nsStyleContext.h"
1.18 +#include "nsPresContext.h"
1.19 +#include "nsIContent.h"
1.20 +#include "nsCOMPtr.h"
1.21 +#include "nsNameSpaceManager.h"
1.22 +#include "nsGkAtoms.h"
1.23 +#include "nsHTMLParts.h"
1.24 +#include "nsIPresShell.h"
1.25 +#include "nsCSSRendering.h"
1.26 +#include "nsViewManager.h"
1.27 +#include "nsBoxLayoutState.h"
1.28 +#include "nsStackLayout.h"
1.29 +#include "nsDisplayList.h"
1.30 +#include "nsContainerFrame.h"
1.31 +
1.32 +#ifdef ACCESSIBILITY
1.33 +#include "nsAccessibilityService.h"
1.34 +#endif
1.35 +
1.36 +nsIFrame*
1.37 +NS_NewDeckFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
1.38 +{
1.39 + return new (aPresShell) nsDeckFrame(aPresShell, aContext);
1.40 +}
1.41 +
1.42 +NS_IMPL_FRAMEARENA_HELPERS(nsDeckFrame)
1.43 +
1.44 +NS_QUERYFRAME_HEAD(nsDeckFrame)
1.45 + NS_QUERYFRAME_ENTRY(nsDeckFrame)
1.46 +NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame)
1.47 +
1.48 +
1.49 +nsDeckFrame::nsDeckFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
1.50 + : nsBoxFrame(aPresShell, aContext), mIndex(0)
1.51 +{
1.52 + nsCOMPtr<nsBoxLayout> layout;
1.53 + NS_NewStackLayout(aPresShell, layout);
1.54 + SetLayoutManager(layout);
1.55 +}
1.56 +
1.57 +nsIAtom*
1.58 +nsDeckFrame::GetType() const
1.59 +{
1.60 + return nsGkAtoms::deckFrame;
1.61 +}
1.62 +
1.63 +nsresult
1.64 +nsDeckFrame::AttributeChanged(int32_t aNameSpaceID,
1.65 + nsIAtom* aAttribute,
1.66 + int32_t aModType)
1.67 +{
1.68 + nsresult rv = nsBoxFrame::AttributeChanged(aNameSpaceID, aAttribute,
1.69 + aModType);
1.70 +
1.71 +
1.72 + // if the index changed hide the old element and make the new element visible
1.73 + if (aAttribute == nsGkAtoms::selectedIndex) {
1.74 + IndexChanged();
1.75 + }
1.76 +
1.77 + return rv;
1.78 +}
1.79 +
1.80 +void
1.81 +nsDeckFrame::Init(nsIContent* aContent,
1.82 + nsIFrame* aParent,
1.83 + nsIFrame* aPrevInFlow)
1.84 +{
1.85 + nsBoxFrame::Init(aContent, aParent, aPrevInFlow);
1.86 +
1.87 + mIndex = GetSelectedIndex();
1.88 +}
1.89 +
1.90 +void
1.91 +nsDeckFrame::HideBox(nsIFrame* aBox)
1.92 +{
1.93 + nsIPresShell::ClearMouseCapture(aBox);
1.94 +}
1.95 +
1.96 +void
1.97 +nsDeckFrame::IndexChanged()
1.98 +{
1.99 + //did the index change?
1.100 + int32_t index = GetSelectedIndex();
1.101 + if (index == mIndex)
1.102 + return;
1.103 +
1.104 + // redraw
1.105 + InvalidateFrame();
1.106 +
1.107 + // hide the currently showing box
1.108 + nsIFrame* currentBox = GetSelectedBox();
1.109 + if (currentBox) // only hide if it exists
1.110 + HideBox(currentBox);
1.111 +
1.112 + mIndex = index;
1.113 +
1.114 +#ifdef ACCESSIBILITY
1.115 + nsAccessibilityService* accService = GetAccService();
1.116 + if (accService) {
1.117 + accService->DeckPanelSwitched(PresContext()->GetPresShell(), mContent,
1.118 + currentBox, GetSelectedBox());
1.119 + }
1.120 +#endif
1.121 +}
1.122 +
1.123 +int32_t
1.124 +nsDeckFrame::GetSelectedIndex()
1.125 +{
1.126 + // default index is 0
1.127 + int32_t index = 0;
1.128 +
1.129 + // get the index attribute
1.130 + nsAutoString value;
1.131 + if (mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::selectedIndex, value))
1.132 + {
1.133 + nsresult error;
1.134 +
1.135 + // convert it to an integer
1.136 + index = value.ToInteger(&error);
1.137 + }
1.138 +
1.139 + return index;
1.140 +}
1.141 +
1.142 +nsIFrame*
1.143 +nsDeckFrame::GetSelectedBox()
1.144 +{
1.145 + return (mIndex >= 0) ? mFrames.FrameAt(mIndex) : nullptr;
1.146 +}
1.147 +
1.148 +void
1.149 +nsDeckFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
1.150 + const nsRect& aDirtyRect,
1.151 + const nsDisplayListSet& aLists)
1.152 +{
1.153 + // if a tab is hidden all its children are too.
1.154 + if (!StyleVisibility()->mVisible)
1.155 + return;
1.156 +
1.157 + nsBoxFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists);
1.158 +}
1.159 +
1.160 +void
1.161 +nsDeckFrame::BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder,
1.162 + const nsRect& aDirtyRect,
1.163 + const nsDisplayListSet& aLists)
1.164 +{
1.165 + // only paint the selected box
1.166 + nsIFrame* box = GetSelectedBox();
1.167 + if (!box)
1.168 + return;
1.169 +
1.170 + // Putting the child in the background list. This is a little weird but
1.171 + // it matches what we were doing before.
1.172 + nsDisplayListSet set(aLists, aLists.BlockBorderBackgrounds());
1.173 + BuildDisplayListForChild(aBuilder, box, aDirtyRect, set);
1.174 +}
1.175 +
1.176 +NS_IMETHODIMP
1.177 +nsDeckFrame::DoLayout(nsBoxLayoutState& aState)
1.178 +{
1.179 + // Make sure we tweak the state so it does not resize our children.
1.180 + // We will do that.
1.181 + uint32_t oldFlags = aState.LayoutFlags();
1.182 + aState.SetLayoutFlags(NS_FRAME_NO_SIZE_VIEW | NS_FRAME_NO_VISIBILITY);
1.183 +
1.184 + // do a normal layout
1.185 + nsresult rv = nsBoxFrame::DoLayout(aState);
1.186 +
1.187 + // run though each child. Hide all but the selected one
1.188 + nsIFrame* box = GetChildBox();
1.189 +
1.190 + nscoord count = 0;
1.191 + while (box)
1.192 + {
1.193 + // make collapsed children not show up
1.194 + if (count != mIndex)
1.195 + HideBox(box);
1.196 +
1.197 + box = box->GetNextBox();
1.198 + count++;
1.199 + }
1.200 +
1.201 + aState.SetLayoutFlags(oldFlags);
1.202 +
1.203 + return rv;
1.204 +}
1.205 +
