1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/xul/grid/nsGridLayout2.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,262 @@
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 "nsGridLayout2.h"
1.17 +#include "nsGridRowGroupLayout.h"
1.18 +#include "nsGridRow.h"
1.19 +#include "nsBox.h"
1.20 +#include "nsIScrollableFrame.h"
1.21 +#include "nsSprocketLayout.h"
1.22 +#include "nsHTMLReflowState.h"
1.23 +
1.24 +nsresult
1.25 +NS_NewGridLayout2( nsIPresShell* aPresShell, nsBoxLayout** aNewLayout)
1.26 +{
1.27 + *aNewLayout = new nsGridLayout2(aPresShell);
1.28 + NS_IF_ADDREF(*aNewLayout);
1.29 +
1.30 + return NS_OK;
1.31 +
1.32 +}
1.33 +
1.34 +nsGridLayout2::nsGridLayout2(nsIPresShell* aPresShell):nsStackLayout()
1.35 +{
1.36 +}
1.37 +
1.38 +// static
1.39 +void
1.40 +nsGridLayout2::AddOffset(nsBoxLayoutState& aState, nsIFrame* aChild, nsSize& aSize)
1.41 +{
1.42 + nsMargin offset;
1.43 + GetOffset(aState, aChild, offset);
1.44 + aSize.width += offset.left;
1.45 + aSize.height += offset.top;
1.46 +}
1.47 +
1.48 +NS_IMETHODIMP
1.49 +nsGridLayout2::Layout(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState)
1.50 +{
1.51 + // XXX This should be set a better way!
1.52 + mGrid.SetBox(aBox);
1.53 + NS_ASSERTION(aBox->GetLayoutManager() == this, "setting incorrect box");
1.54 +
1.55 + nsresult rv = nsStackLayout::Layout(aBox, aBoxLayoutState);
1.56 +#ifdef DEBUG_grid
1.57 + mGrid.PrintCellMap();
1.58 +#endif
1.59 + return rv;
1.60 +}
1.61 +
1.62 +void
1.63 +nsGridLayout2::IntrinsicWidthsDirty(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState)
1.64 +{
1.65 + nsStackLayout::IntrinsicWidthsDirty(aBox, aBoxLayoutState);
1.66 + // XXXldb We really don't need to do all the work that NeedsRebuild
1.67 + // does; we just need to mark intrinsic widths dirty on the
1.68 + // (row/column)(s/-groups).
1.69 + mGrid.NeedsRebuild(aBoxLayoutState);
1.70 +}
1.71 +
1.72 +nsGrid*
1.73 +nsGridLayout2::GetGrid(nsIFrame* aBox, int32_t* aIndex, nsGridRowLayout* aRequestor)
1.74 +{
1.75 + // XXX This should be set a better way!
1.76 + mGrid.SetBox(aBox);
1.77 + NS_ASSERTION(aBox->GetLayoutManager() == this, "setting incorrect box");
1.78 + return &mGrid;
1.79 +}
1.80 +
1.81 +void
1.82 +nsGridLayout2::AddWidth(nsSize& aSize, nscoord aSize2, bool aIsHorizontal)
1.83 +{
1.84 + nscoord& size = GET_WIDTH(aSize, aIsHorizontal);
1.85 +
1.86 + if (size != NS_INTRINSICSIZE) {
1.87 + if (aSize2 == NS_INTRINSICSIZE)
1.88 + size = NS_INTRINSICSIZE;
1.89 + else
1.90 + size += aSize2;
1.91 + }
1.92 +}
1.93 +
1.94 +nsSize
1.95 +nsGridLayout2::GetMinSize(nsIFrame* aBox, nsBoxLayoutState& aState)
1.96 +{
1.97 + nsSize minSize = nsStackLayout::GetMinSize(aBox, aState);
1.98 +
1.99 + // if there are no <rows> tags that will sum up our columns,
1.100 + // sum up our columns here.
1.101 + nsSize total(0,0);
1.102 + nsIFrame* rowsBox = mGrid.GetRowsBox();
1.103 + nsIFrame* columnsBox = mGrid.GetColumnsBox();
1.104 + if (!rowsBox || !columnsBox) {
1.105 + if (!rowsBox) {
1.106 + // max height is the sum of our rows
1.107 + int32_t rows = mGrid.GetRowCount();
1.108 + for (int32_t i=0; i < rows; i++)
1.109 + {
1.110 + nscoord height = mGrid.GetMinRowHeight(aState, i, true);
1.111 + AddWidth(total, height, false); // AddHeight
1.112 + }
1.113 + }
1.114 +
1.115 + if (!columnsBox) {
1.116 + // max height is the sum of our rows
1.117 + int32_t columns = mGrid.GetColumnCount();
1.118 + for (int32_t i=0; i < columns; i++)
1.119 + {
1.120 + nscoord width = mGrid.GetMinRowHeight(aState, i, false);
1.121 + AddWidth(total, width, true); // AddWidth
1.122 + }
1.123 + }
1.124 +
1.125 + AddMargin(aBox, total);
1.126 + AddOffset(aState, aBox, total);
1.127 + AddLargestSize(minSize, total);
1.128 + }
1.129 +
1.130 + return minSize;
1.131 +}
1.132 +
1.133 +nsSize
1.134 +nsGridLayout2::GetPrefSize(nsIFrame* aBox, nsBoxLayoutState& aState)
1.135 +{
1.136 + nsSize pref = nsStackLayout::GetPrefSize(aBox, aState);
1.137 +
1.138 + // if there are no <rows> tags that will sum up our columns,
1.139 + // sum up our columns here.
1.140 + nsSize total(0,0);
1.141 + nsIFrame* rowsBox = mGrid.GetRowsBox();
1.142 + nsIFrame* columnsBox = mGrid.GetColumnsBox();
1.143 + if (!rowsBox || !columnsBox) {
1.144 + if (!rowsBox) {
1.145 + // max height is the sum of our rows
1.146 + int32_t rows = mGrid.GetRowCount();
1.147 + for (int32_t i=0; i < rows; i++)
1.148 + {
1.149 + nscoord height = mGrid.GetPrefRowHeight(aState, i, true);
1.150 + AddWidth(total, height, false); // AddHeight
1.151 + }
1.152 + }
1.153 +
1.154 + if (!columnsBox) {
1.155 + // max height is the sum of our rows
1.156 + int32_t columns = mGrid.GetColumnCount();
1.157 + for (int32_t i=0; i < columns; i++)
1.158 + {
1.159 + nscoord width = mGrid.GetPrefRowHeight(aState, i, false);
1.160 + AddWidth(total, width, true); // AddWidth
1.161 + }
1.162 + }
1.163 +
1.164 + AddMargin(aBox, total);
1.165 + AddOffset(aState, aBox, total);
1.166 + AddLargestSize(pref, total);
1.167 + }
1.168 +
1.169 + return pref;
1.170 +}
1.171 +
1.172 +nsSize
1.173 +nsGridLayout2::GetMaxSize(nsIFrame* aBox, nsBoxLayoutState& aState)
1.174 +{
1.175 + nsSize maxSize = nsStackLayout::GetMaxSize(aBox, aState);
1.176 +
1.177 + // if there are no <rows> tags that will sum up our columns,
1.178 + // sum up our columns here.
1.179 + nsSize total(NS_INTRINSICSIZE, NS_INTRINSICSIZE);
1.180 + nsIFrame* rowsBox = mGrid.GetRowsBox();
1.181 + nsIFrame* columnsBox = mGrid.GetColumnsBox();
1.182 + if (!rowsBox || !columnsBox) {
1.183 + if (!rowsBox) {
1.184 + total.height = 0;
1.185 + // max height is the sum of our rows
1.186 + int32_t rows = mGrid.GetRowCount();
1.187 + for (int32_t i=0; i < rows; i++)
1.188 + {
1.189 + nscoord height = mGrid.GetMaxRowHeight(aState, i, true);
1.190 + AddWidth(total, height, false); // AddHeight
1.191 + }
1.192 + }
1.193 +
1.194 + if (!columnsBox) {
1.195 + total.width = 0;
1.196 + // max height is the sum of our rows
1.197 + int32_t columns = mGrid.GetColumnCount();
1.198 + for (int32_t i=0; i < columns; i++)
1.199 + {
1.200 + nscoord width = mGrid.GetMaxRowHeight(aState, i, false);
1.201 + AddWidth(total, width, true); // AddWidth
1.202 + }
1.203 + }
1.204 +
1.205 + AddMargin(aBox, total);
1.206 + AddOffset(aState, aBox, total);
1.207 + AddSmallestSize(maxSize, total);
1.208 + }
1.209 +
1.210 + return maxSize;
1.211 +}
1.212 +
1.213 +int32_t
1.214 +nsGridLayout2::BuildRows(nsIFrame* aBox, nsGridRow* aRows)
1.215 +{
1.216 + if (aBox) {
1.217 + aRows[0].Init(aBox, true);
1.218 + return 1;
1.219 + }
1.220 + return 0;
1.221 +}
1.222 +
1.223 +nsMargin
1.224 +nsGridLayout2::GetTotalMargin(nsIFrame* aBox, bool aIsHorizontal)
1.225 +{
1.226 + nsMargin margin(0,0,0,0);
1.227 + return margin;
1.228 +}
1.229 +
1.230 +void
1.231 +nsGridLayout2::ChildrenInserted(nsIFrame* aBox, nsBoxLayoutState& aState,
1.232 + nsIFrame* aPrevBox,
1.233 + const nsFrameList::Slice& aNewChildren)
1.234 +{
1.235 + mGrid.NeedsRebuild(aState);
1.236 +}
1.237 +
1.238 +void
1.239 +nsGridLayout2::ChildrenAppended(nsIFrame* aBox, nsBoxLayoutState& aState,
1.240 + const nsFrameList::Slice& aNewChildren)
1.241 +{
1.242 + mGrid.NeedsRebuild(aState);
1.243 +}
1.244 +
1.245 +void
1.246 +nsGridLayout2::ChildrenRemoved(nsIFrame* aBox, nsBoxLayoutState& aState,
1.247 + nsIFrame* aChildList)
1.248 +{
1.249 + mGrid.NeedsRebuild(aState);
1.250 +}
1.251 +
1.252 +void
1.253 +nsGridLayout2::ChildrenSet(nsIFrame* aBox, nsBoxLayoutState& aState,
1.254 + nsIFrame* aChildList)
1.255 +{
1.256 + mGrid.NeedsRebuild(aState);
1.257 +}
1.258 +
1.259 +NS_IMPL_ADDREF_INHERITED(nsGridLayout2, nsStackLayout)
1.260 +NS_IMPL_RELEASE_INHERITED(nsGridLayout2, nsStackLayout)
1.261 +
1.262 +NS_INTERFACE_MAP_BEGIN(nsGridLayout2)
1.263 + NS_INTERFACE_MAP_ENTRY(nsIGridPart)
1.264 + NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIGridPart)
1.265 +NS_INTERFACE_MAP_END_INHERITING(nsStackLayout)
