import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

layout/xul/grid/nsGridLayout2.cpp

@@ -0,0 +1,266 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//
+// Eric Vaughan
+// Netscape Communications
+//
+// See documentation in associated header file
+//
+
+#include "nsGridLayout2.h"
+#include "nsGridRowGroupLayout.h"
+#include "nsGridRow.h"
+#include "nsBox.h"
+#include "nsIScrollableFrame.h"
+#include "nsSprocketLayout.h"
+#include "mozilla/ReflowInput.h"
+
+nsresult
+NS_NewGridLayout2( nsIPresShell* aPresShell, nsBoxLayout** aNewLayout)
+{
+  *aNewLayout = new nsGridLayout2(aPresShell);
+  NS_IF_ADDREF(*aNewLayout);
+
+  return NS_OK;
+  
+} 
+
+nsGridLayout2::nsGridLayout2(nsIPresShell* aPresShell):nsStackLayout()
+{
+}
+
+nsGridLayout2::~nsGridLayout2()
+{
+}
+
+// static
+void
+nsGridLayout2::AddOffset(nsIFrame* aChild, nsSize& aSize)
+{
+  nsMargin offset;
+  GetOffset(aChild, offset);
+  aSize.width += offset.left;
+  aSize.height += offset.top;
+}
+
+NS_IMETHODIMP
+nsGridLayout2::XULLayout(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState)
+{
+  // XXX This should be set a better way!
+  mGrid.SetBox(aBox);
+  NS_ASSERTION(aBox->GetXULLayoutManager() == this, "setting incorrect box");
+
+  nsresult rv = nsStackLayout::XULLayout(aBox, aBoxLayoutState);
+#ifdef DEBUG_grid
+  mGrid.PrintCellMap();
+#endif
+  return rv;
+}
+
+void
+nsGridLayout2::IntrinsicISizesDirty(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState)
+{
+  nsStackLayout::IntrinsicISizesDirty(aBox, aBoxLayoutState);
+  // XXXldb We really don't need to do all the work that NeedsRebuild
+  // does; we just need to mark intrinsic widths dirty on the
+  // (row/column)(s/-groups).
+  mGrid.NeedsRebuild(aBoxLayoutState);
+}
+
+nsGrid*
+nsGridLayout2::GetGrid(nsIFrame* aBox, int32_t* aIndex, nsGridRowLayout* aRequestor)
+{
+  // XXX This should be set a better way!
+  mGrid.SetBox(aBox);
+  NS_ASSERTION(aBox->GetXULLayoutManager() == this, "setting incorrect box");
+  return &mGrid;
+}
+
+void
+nsGridLayout2::AddWidth(nsSize& aSize, nscoord aSize2, bool aIsHorizontal)
+{
+  nscoord& size = GET_WIDTH(aSize, aIsHorizontal);
+
+  if (size != NS_INTRINSICSIZE) {
+    if (aSize2 == NS_INTRINSICSIZE)
+      size = NS_INTRINSICSIZE;
+    else
+      size += aSize2;
+  }
+}
+
+nsSize
+nsGridLayout2::GetXULMinSize(nsIFrame* aBox, nsBoxLayoutState& aState)
+{
+  nsSize minSize = nsStackLayout::GetXULMinSize(aBox, aState); 
+
+  // if there are no <rows> tags that will sum up our columns,
+  // sum up our columns here.
+  nsSize total(0,0);
+  nsIFrame* rowsBox = mGrid.GetRowsBox();
+  nsIFrame* columnsBox = mGrid.GetColumnsBox();
+  if (!rowsBox || !columnsBox) {
+    if (!rowsBox) {
+      // max height is the sum of our rows
+      int32_t rows = mGrid.GetRowCount();
+      for (int32_t i=0; i < rows; i++)
+      {
+        nscoord height = mGrid.GetMinRowHeight(aState, i, true); 
+        AddWidth(total, height, false); // AddHeight
+      }
+    }
+
+    if (!columnsBox) {
+      // max height is the sum of our rows
+      int32_t columns = mGrid.GetColumnCount();
+      for (int32_t i=0; i < columns; i++)
+      {
+        nscoord width = mGrid.GetMinRowHeight(aState, i, false); 
+        AddWidth(total, width, true); // AddWidth
+      }
+    }
+
+    AddMargin(aBox, total);
+    AddOffset(aBox, total);
+    AddLargestSize(minSize, total);
+  }
+  
+  return minSize;
+}
+
+nsSize
+nsGridLayout2::GetXULPrefSize(nsIFrame* aBox, nsBoxLayoutState& aState)
+{
+  nsSize pref = nsStackLayout::GetXULPrefSize(aBox, aState); 
+
+  // if there are no <rows> tags that will sum up our columns,
+  // sum up our columns here.
+  nsSize total(0,0);
+  nsIFrame* rowsBox = mGrid.GetRowsBox();
+  nsIFrame* columnsBox = mGrid.GetColumnsBox();
+  if (!rowsBox || !columnsBox) {
+    if (!rowsBox) {
+      // max height is the sum of our rows
+      int32_t rows = mGrid.GetRowCount();
+      for (int32_t i=0; i < rows; i++)
+      {
+        nscoord height = mGrid.GetPrefRowHeight(aState, i, true); 
+        AddWidth(total, height, false); // AddHeight
+      }
+    }
+
+    if (!columnsBox) {
+      // max height is the sum of our rows
+      int32_t columns = mGrid.GetColumnCount();
+      for (int32_t i=0; i < columns; i++)
+      {
+        nscoord width = mGrid.GetPrefRowHeight(aState, i, false);
+        AddWidth(total, width, true); // AddWidth
+      }
+    }
+
+    AddMargin(aBox, total);
+    AddOffset(aBox, total);
+    AddLargestSize(pref, total);
+  }
+
+  return pref;
+}
+
+nsSize
+nsGridLayout2::GetXULMaxSize(nsIFrame* aBox, nsBoxLayoutState& aState)
+{
+  nsSize maxSize = nsStackLayout::GetXULMaxSize(aBox, aState); 
+
+  // if there are no <rows> tags that will sum up our columns,
+  // sum up our columns here.
+  nsSize total(NS_INTRINSICSIZE, NS_INTRINSICSIZE);
+  nsIFrame* rowsBox = mGrid.GetRowsBox();
+  nsIFrame* columnsBox = mGrid.GetColumnsBox();
+  if (!rowsBox || !columnsBox) {
+    if (!rowsBox) {
+      total.height = 0;
+      // max height is the sum of our rows
+      int32_t rows = mGrid.GetRowCount();
+      for (int32_t i=0; i < rows; i++)
+      {
+        nscoord height = mGrid.GetMaxRowHeight(aState, i, true); 
+        AddWidth(total, height, false); // AddHeight
+      }
+    }
+
+    if (!columnsBox) {
+      total.width = 0;
+      // max height is the sum of our rows
+      int32_t columns = mGrid.GetColumnCount();
+      for (int32_t i=0; i < columns; i++)
+      {
+        nscoord width = mGrid.GetMaxRowHeight(aState, i, false);
+        AddWidth(total, width, true); // AddWidth
+      }
+    }
+
+    AddMargin(aBox, total);
+    AddOffset(aBox, total);
+    AddSmallestSize(maxSize, total);
+  }
+
+  return maxSize;
+}
+
+int32_t
+nsGridLayout2::BuildRows(nsIFrame* aBox, nsGridRow* aRows)
+{
+  if (aBox) {
+    aRows[0].Init(aBox, true);
+    return 1;
+  }
+  return 0;
+}
+
+nsMargin
+nsGridLayout2::GetTotalMargin(nsIFrame* aBox, bool aIsHorizontal)
+{
+  nsMargin margin(0,0,0,0);
+  return margin;
+}
+
+void
+nsGridLayout2::ChildrenInserted(nsIFrame* aBox, nsBoxLayoutState& aState,
+                                nsIFrame* aPrevBox,
+                                const nsFrameList::Slice& aNewChildren)
+{
+  mGrid.NeedsRebuild(aState);
+}
+
+void
+nsGridLayout2::ChildrenAppended(nsIFrame* aBox, nsBoxLayoutState& aState,
+                                const nsFrameList::Slice& aNewChildren)
+{
+  mGrid.NeedsRebuild(aState);
+}
+
+void
+nsGridLayout2::ChildrenRemoved(nsIFrame* aBox, nsBoxLayoutState& aState,
+                               nsIFrame* aChildList)
+{
+  mGrid.NeedsRebuild(aState);
+}
+
+void
+nsGridLayout2::ChildrenSet(nsIFrame* aBox, nsBoxLayoutState& aState,
+                           nsIFrame* aChildList)
+{
+  mGrid.NeedsRebuild(aState);
+}
+
+NS_IMPL_ADDREF_INHERITED(nsGridLayout2, nsStackLayout)
+NS_IMPL_RELEASE_INHERITED(nsGridLayout2, nsStackLayout)
+
+NS_INTERFACE_MAP_BEGIN(nsGridLayout2)
+  NS_INTERFACE_MAP_ENTRY(nsIGridPart)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIGridPart)
+NS_INTERFACE_MAP_END_INHERITING(nsStackLayout)