gecko/layout/xul/nsStackLayout.cpp
Robert O'Callahan dfac132678 Bug 945091. Part 3: Flatten layout/xul/base/* into layout/xul. r=glandium
--HG--
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rename : layout/xul/base/src/crashtests/564705-1.xul => layout/xul/crashtests/564705-1.xul
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rename : layout/xul/base/src/crashtests/crashtests.list => layout/xul/crashtests/crashtests.list
rename : layout/xul/base/src/crashtests/menulist-focused.xhtml => layout/xul/crashtests/menulist-focused.xhtml
rename : layout/xul/base/src/moz.build => layout/xul/moz.build
rename : layout/xul/base/src/nsBox.cpp => layout/xul/nsBox.cpp
rename : layout/xul/base/src/nsBox.h => layout/xul/nsBox.h
rename : layout/xul/base/src/nsBoxFrame.cpp => layout/xul/nsBoxFrame.cpp
rename : layout/xul/base/src/nsBoxFrame.h => layout/xul/nsBoxFrame.h
rename : layout/xul/base/src/nsBoxLayout.cpp => layout/xul/nsBoxLayout.cpp
rename : layout/xul/base/src/nsBoxLayout.h => layout/xul/nsBoxLayout.h
rename : layout/xul/base/src/nsBoxLayoutState.cpp => layout/xul/nsBoxLayoutState.cpp
rename : layout/xul/base/src/nsBoxLayoutState.h => layout/xul/nsBoxLayoutState.h
rename : layout/xul/base/src/nsBoxObject.cpp => layout/xul/nsBoxObject.cpp
rename : layout/xul/base/src/nsBoxObject.h => layout/xul/nsBoxObject.h
rename : layout/xul/base/src/nsButtonBoxFrame.cpp => layout/xul/nsButtonBoxFrame.cpp
rename : layout/xul/base/src/nsButtonBoxFrame.h => layout/xul/nsButtonBoxFrame.h
rename : layout/xul/base/src/nsContainerBoxObject.cpp => layout/xul/nsContainerBoxObject.cpp
rename : layout/xul/base/src/nsDeckFrame.cpp => layout/xul/nsDeckFrame.cpp
rename : layout/xul/base/src/nsDeckFrame.h => layout/xul/nsDeckFrame.h
rename : layout/xul/base/src/nsDocElementBoxFrame.cpp => layout/xul/nsDocElementBoxFrame.cpp
rename : layout/xul/base/src/nsGroupBoxFrame.cpp => layout/xul/nsGroupBoxFrame.cpp
rename : layout/xul/base/public/nsIBoxObject.idl => layout/xul/nsIBoxObject.idl
rename : layout/xul/base/public/nsIBrowserBoxObject.idl => layout/xul/nsIBrowserBoxObject.idl
rename : layout/xul/base/public/nsIContainerBoxObject.idl => layout/xul/nsIContainerBoxObject.idl
rename : layout/xul/base/public/nsIEditorBoxObject.idl => layout/xul/nsIEditorBoxObject.idl
rename : layout/xul/base/public/nsIIFrameBoxObject.idl => layout/xul/nsIIFrameBoxObject.idl
rename : layout/xul/base/public/nsIListBoxObject.idl => layout/xul/nsIListBoxObject.idl
rename : layout/xul/base/public/nsIMenuBoxObject.idl => layout/xul/nsIMenuBoxObject.idl
rename : layout/xul/base/public/nsIPopupBoxObject.idl => layout/xul/nsIPopupBoxObject.idl
rename : layout/xul/base/src/nsIRootBox.h => layout/xul/nsIRootBox.h
rename : layout/xul/base/public/nsIScrollBoxObject.idl => layout/xul/nsIScrollBoxObject.idl
rename : layout/xul/base/public/nsIScrollbarMediator.h => layout/xul/nsIScrollbarMediator.h
rename : layout/xul/base/public/nsISliderListener.idl => layout/xul/nsISliderListener.idl
rename : layout/xul/base/src/nsImageBoxFrame.cpp => layout/xul/nsImageBoxFrame.cpp
rename : layout/xul/base/src/nsImageBoxFrame.h => layout/xul/nsImageBoxFrame.h
rename : layout/xul/base/src/nsLeafBoxFrame.cpp => layout/xul/nsLeafBoxFrame.cpp
rename : layout/xul/base/src/nsLeafBoxFrame.h => layout/xul/nsLeafBoxFrame.h
rename : layout/xul/base/src/nsListBoxBodyFrame.cpp => layout/xul/nsListBoxBodyFrame.cpp
rename : layout/xul/base/src/nsListBoxBodyFrame.h => layout/xul/nsListBoxBodyFrame.h
rename : layout/xul/base/src/nsListBoxLayout.cpp => layout/xul/nsListBoxLayout.cpp
rename : layout/xul/base/src/nsListBoxLayout.h => layout/xul/nsListBoxLayout.h
rename : layout/xul/base/src/nsListBoxObject.cpp => layout/xul/nsListBoxObject.cpp
rename : layout/xul/base/src/nsListItemFrame.cpp => layout/xul/nsListItemFrame.cpp
rename : layout/xul/base/src/nsListItemFrame.h => layout/xul/nsListItemFrame.h
rename : layout/xul/base/src/nsMenuBarFrame.cpp => layout/xul/nsMenuBarFrame.cpp
rename : layout/xul/base/src/nsMenuBarFrame.h => layout/xul/nsMenuBarFrame.h
rename : layout/xul/base/src/nsMenuBarListener.cpp => layout/xul/nsMenuBarListener.cpp
rename : layout/xul/base/src/nsMenuBarListener.h => layout/xul/nsMenuBarListener.h
rename : layout/xul/base/src/nsMenuBoxObject.cpp => layout/xul/nsMenuBoxObject.cpp
rename : layout/xul/base/src/nsMenuFrame.cpp => layout/xul/nsMenuFrame.cpp
rename : layout/xul/base/src/nsMenuFrame.h => layout/xul/nsMenuFrame.h
rename : layout/xul/base/src/nsMenuParent.h => layout/xul/nsMenuParent.h
rename : layout/xul/base/src/nsMenuPopupFrame.cpp => layout/xul/nsMenuPopupFrame.cpp
rename : layout/xul/base/src/nsMenuPopupFrame.h => layout/xul/nsMenuPopupFrame.h
rename : layout/xul/base/public/nsPIBoxObject.h => layout/xul/nsPIBoxObject.h
rename : layout/xul/base/src/nsPIListBoxObject.h => layout/xul/nsPIListBoxObject.h
rename : layout/xul/base/src/nsPopupBoxObject.cpp => layout/xul/nsPopupBoxObject.cpp
rename : layout/xul/base/src/nsPopupSetFrame.cpp => layout/xul/nsPopupSetFrame.cpp
rename : layout/xul/base/src/nsPopupSetFrame.h => layout/xul/nsPopupSetFrame.h
rename : layout/xul/base/src/nsProgressMeterFrame.cpp => layout/xul/nsProgressMeterFrame.cpp
rename : layout/xul/base/src/nsProgressMeterFrame.h => layout/xul/nsProgressMeterFrame.h
rename : layout/xul/base/src/nsRepeatService.cpp => layout/xul/nsRepeatService.cpp
rename : layout/xul/base/src/nsRepeatService.h => layout/xul/nsRepeatService.h
rename : layout/xul/base/src/nsResizerFrame.cpp => layout/xul/nsResizerFrame.cpp
rename : layout/xul/base/src/nsResizerFrame.h => layout/xul/nsResizerFrame.h
rename : layout/xul/base/src/nsRootBoxFrame.cpp => layout/xul/nsRootBoxFrame.cpp
rename : layout/xul/base/src/nsScrollBoxFrame.cpp => layout/xul/nsScrollBoxFrame.cpp
rename : layout/xul/base/src/nsScrollBoxObject.cpp => layout/xul/nsScrollBoxObject.cpp
rename : layout/xul/base/src/nsScrollbarButtonFrame.cpp => layout/xul/nsScrollbarButtonFrame.cpp
rename : layout/xul/base/src/nsScrollbarButtonFrame.h => layout/xul/nsScrollbarButtonFrame.h
rename : layout/xul/base/src/nsScrollbarFrame.cpp => layout/xul/nsScrollbarFrame.cpp
rename : layout/xul/base/src/nsScrollbarFrame.h => layout/xul/nsScrollbarFrame.h
rename : layout/xul/base/src/nsSliderFrame.cpp => layout/xul/nsSliderFrame.cpp
rename : layout/xul/base/src/nsSliderFrame.h => layout/xul/nsSliderFrame.h
rename : layout/xul/base/src/nsSplitterFrame.cpp => layout/xul/nsSplitterFrame.cpp
rename : layout/xul/base/src/nsSplitterFrame.h => layout/xul/nsSplitterFrame.h
rename : layout/xul/base/src/nsSprocketLayout.cpp => layout/xul/nsSprocketLayout.cpp
rename : layout/xul/base/src/nsSprocketLayout.h => layout/xul/nsSprocketLayout.h
rename : layout/xul/base/src/nsStackFrame.cpp => layout/xul/nsStackFrame.cpp
rename : layout/xul/base/src/nsStackFrame.h => layout/xul/nsStackFrame.h
rename : layout/xul/base/src/nsStackLayout.cpp => layout/xul/nsStackLayout.cpp
rename : layout/xul/base/src/nsStackLayout.h => layout/xul/nsStackLayout.h
rename : layout/xul/base/src/nsTextBoxFrame.cpp => layout/xul/nsTextBoxFrame.cpp
rename : layout/xul/base/src/nsTextBoxFrame.h => layout/xul/nsTextBoxFrame.h
rename : layout/xul/base/src/nsTitleBarFrame.cpp => layout/xul/nsTitleBarFrame.cpp
rename : layout/xul/base/src/nsTitleBarFrame.h => layout/xul/nsTitleBarFrame.h
rename : layout/xul/base/src/nsXULLabelFrame.cpp => layout/xul/nsXULLabelFrame.cpp
rename : layout/xul/base/src/nsXULLabelFrame.h => layout/xul/nsXULLabelFrame.h
rename : layout/xul/base/src/nsXULPopupManager.cpp => layout/xul/nsXULPopupManager.cpp
rename : layout/xul/base/public/nsXULPopupManager.h => layout/xul/nsXULPopupManager.h
rename : layout/xul/base/src/nsXULTooltipListener.cpp => layout/xul/nsXULTooltipListener.cpp
rename : layout/xul/base/src/nsXULTooltipListener.h => layout/xul/nsXULTooltipListener.h
rename : layout/xul/base/reftest/image-scaling-min-height-1-ref.xul => layout/xul/reftest/image-scaling-min-height-1-ref.xul
rename : layout/xul/base/reftest/image-scaling-min-height-1.xul => layout/xul/reftest/image-scaling-min-height-1.xul
rename : layout/xul/base/reftest/image-size-ref.xul => layout/xul/reftest/image-size-ref.xul
rename : layout/xul/base/reftest/image-size.xul => layout/xul/reftest/image-size.xul
rename : layout/xul/base/reftest/image4x3.png => layout/xul/reftest/image4x3.png
rename : layout/xul/base/reftest/popup-explicit-size-ref.xul => layout/xul/reftest/popup-explicit-size-ref.xul
rename : layout/xul/base/reftest/popup-explicit-size.xul => layout/xul/reftest/popup-explicit-size.xul
rename : layout/xul/base/reftest/reftest.list => layout/xul/reftest/reftest.list
rename : layout/xul/base/reftest/textbox-multiline-noresize.xul => layout/xul/reftest/textbox-multiline-noresize.xul
rename : layout/xul/base/reftest/textbox-multiline-ref.xul => layout/xul/reftest/textbox-multiline-ref.xul
rename : layout/xul/base/reftest/textbox-multiline-resize.xul => layout/xul/reftest/textbox-multiline-resize.xul
rename : layout/xul/base/test/test_bug381167.xhtml => layout/xul/test/test_bug381167.xhtml
rename : layout/xul/base/test/test_bug393970.xul => layout/xul/test/test_bug393970.xul
rename : layout/xul/base/test/test_bug477754.xul => layout/xul/test/test_bug477754.xul
rename : layout/xul/base/test/test_bug511075.html => layout/xul/test/test_bug511075.html
rename : layout/xul/base/test/test_popupSizeTo.xul => layout/xul/test/test_popupSizeTo.xul
rename : layout/xul/base/test/test_resizer.xul => layout/xul/test/test_resizer.xul
rename : layout/xul/base/test/test_resizer_incontent.xul => layout/xul/test/test_resizer_incontent.xul
rename : layout/xul/base/test/test_splitter.xul => layout/xul/test/test_splitter.xul
rename : layout/xul/base/test/test_stack.xul => layout/xul/test/test_stack.xul
rename : layout/xul/base/test/test_windowminmaxsize.xul => layout/xul/test/test_windowminmaxsize.xul
rename : layout/xul/base/test/window_resizer.xul => layout/xul/test/window_resizer.xul
rename : layout/xul/base/test/window_resizer_element.xul => layout/xul/test/window_resizer_element.xul
2013-12-04 14:06:16 +13:00

384 lines
11 KiB
C++

/* -*- 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 "nsStackLayout.h"
#include "nsCOMPtr.h"
#include "nsBoxLayoutState.h"
#include "nsBox.h"
#include "nsBoxFrame.h"
#include "nsGkAtoms.h"
#include "nsIContent.h"
#include "nsINameSpaceManager.h"
using namespace mozilla;
nsBoxLayout* nsStackLayout::gInstance = nullptr;
#define SPECIFIED_LEFT (1 << NS_SIDE_LEFT)
#define SPECIFIED_RIGHT (1 << NS_SIDE_RIGHT)
#define SPECIFIED_TOP (1 << NS_SIDE_TOP)
#define SPECIFIED_BOTTOM (1 << NS_SIDE_BOTTOM)
nsresult
NS_NewStackLayout( nsIPresShell* aPresShell, nsCOMPtr<nsBoxLayout>& aNewLayout)
{
if (!nsStackLayout::gInstance) {
nsStackLayout::gInstance = new nsStackLayout();
NS_IF_ADDREF(nsStackLayout::gInstance);
}
// we have not instance variables so just return our static one.
aNewLayout = nsStackLayout::gInstance;
return NS_OK;
}
/*static*/ void
nsStackLayout::Shutdown()
{
NS_IF_RELEASE(gInstance);
}
nsStackLayout::nsStackLayout()
{
}
/*
* Sizing: we are as wide as the widest child plus its left offset
* we are tall as the tallest child plus its top offset.
*
* Only children which have -moz-stack-sizing set to stretch-to-fit
* (the default) will be included in the size computations.
*/
nsSize
nsStackLayout::GetPrefSize(nsIFrame* aBox, nsBoxLayoutState& aState)
{
nsSize prefSize (0, 0);
nsIFrame* child = aBox->GetChildBox();
while (child) {
if (child->StyleXUL()->mStretchStack) {
nsSize pref = child->GetPrefSize(aState);
AddMargin(child, pref);
nsMargin offset;
GetOffset(aState, child, offset);
pref.width += offset.LeftRight();
pref.height += offset.TopBottom();
AddLargestSize(prefSize, pref);
}
child = child->GetNextBox();
}
AddBorderAndPadding(aBox, prefSize);
return prefSize;
}
nsSize
nsStackLayout::GetMinSize(nsIFrame* aBox, nsBoxLayoutState& aState)
{
nsSize minSize (0, 0);
nsIFrame* child = aBox->GetChildBox();
while (child) {
if (child->StyleXUL()->mStretchStack) {
nsSize min = child->GetMinSize(aState);
AddMargin(child, min);
nsMargin offset;
GetOffset(aState, child, offset);
min.width += offset.LeftRight();
min.height += offset.TopBottom();
AddLargestSize(minSize, min);
}
child = child->GetNextBox();
}
AddBorderAndPadding(aBox, minSize);
return minSize;
}
nsSize
nsStackLayout::GetMaxSize(nsIFrame* aBox, nsBoxLayoutState& aState)
{
nsSize maxSize (NS_INTRINSICSIZE, NS_INTRINSICSIZE);
nsIFrame* child = aBox->GetChildBox();
while (child) {
if (child->StyleXUL()->mStretchStack) {
nsSize min = child->GetMinSize(aState);
nsSize max = child->GetMaxSize(aState);
max = nsBox::BoundsCheckMinMax(min, max);
AddMargin(child, max);
nsMargin offset;
GetOffset(aState, child, offset);
max.width += offset.LeftRight();
max.height += offset.TopBottom();
AddSmallestSize(maxSize, max);
}
child = child->GetNextBox();
}
AddBorderAndPadding(aBox, maxSize);
return maxSize;
}
nscoord
nsStackLayout::GetAscent(nsIFrame* aBox, nsBoxLayoutState& aState)
{
nscoord vAscent = 0;
nsIFrame* child = aBox->GetChildBox();
while (child) {
nscoord ascent = child->GetBoxAscent(aState);
nsMargin margin;
child->GetMargin(margin);
ascent += margin.top;
if (ascent > vAscent)
vAscent = ascent;
child = child->GetNextBox();
}
return vAscent;
}
uint8_t
nsStackLayout::GetOffset(nsBoxLayoutState& aState, nsIFrame* aChild, nsMargin& aOffset)
{
aOffset = nsMargin(0, 0, 0, 0);
// get the left, right, top and bottom offsets
// As an optimization, we cache the fact that we are not positioned to avoid
// wasting time fetching attributes.
if (aChild->IsBoxFrame() &&
(aChild->GetStateBits() & NS_STATE_STACK_NOT_POSITIONED))
return 0;
uint8_t offsetSpecified = 0;
nsIContent* content = aChild->GetContent();
if (content) {
bool ltr = aChild->StyleVisibility()->mDirection == NS_STYLE_DIRECTION_LTR;
nsAutoString value;
nsresult error;
content->GetAttr(kNameSpaceID_None, nsGkAtoms::start, value);
if (!value.IsEmpty()) {
value.Trim("%");
if (ltr) {
aOffset.left =
nsPresContext::CSSPixelsToAppUnits(value.ToInteger(&error));
offsetSpecified |= SPECIFIED_LEFT;
} else {
aOffset.right =
nsPresContext::CSSPixelsToAppUnits(value.ToInteger(&error));
offsetSpecified |= SPECIFIED_RIGHT;
}
}
content->GetAttr(kNameSpaceID_None, nsGkAtoms::end, value);
if (!value.IsEmpty()) {
value.Trim("%");
if (ltr) {
aOffset.right =
nsPresContext::CSSPixelsToAppUnits(value.ToInteger(&error));
offsetSpecified |= SPECIFIED_RIGHT;
} else {
aOffset.left =
nsPresContext::CSSPixelsToAppUnits(value.ToInteger(&error));
offsetSpecified |= SPECIFIED_LEFT;
}
}
content->GetAttr(kNameSpaceID_None, nsGkAtoms::left, value);
if (!value.IsEmpty()) {
value.Trim("%");
aOffset.left =
nsPresContext::CSSPixelsToAppUnits(value.ToInteger(&error));
offsetSpecified |= SPECIFIED_LEFT;
}
content->GetAttr(kNameSpaceID_None, nsGkAtoms::right, value);
if (!value.IsEmpty()) {
value.Trim("%");
aOffset.right =
nsPresContext::CSSPixelsToAppUnits(value.ToInteger(&error));
offsetSpecified |= SPECIFIED_RIGHT;
}
content->GetAttr(kNameSpaceID_None, nsGkAtoms::top, value);
if (!value.IsEmpty()) {
value.Trim("%");
aOffset.top =
nsPresContext::CSSPixelsToAppUnits(value.ToInteger(&error));
offsetSpecified |= SPECIFIED_TOP;
}
content->GetAttr(kNameSpaceID_None, nsGkAtoms::bottom, value);
if (!value.IsEmpty()) {
value.Trim("%");
aOffset.bottom =
nsPresContext::CSSPixelsToAppUnits(value.ToInteger(&error));
offsetSpecified |= SPECIFIED_BOTTOM;
}
}
if (!offsetSpecified && aChild->IsBoxFrame()) {
// If no offset was specified at all, then we cache this fact to avoid requerying
// CSS or the content model.
aChild->AddStateBits(NS_STATE_STACK_NOT_POSITIONED);
}
return offsetSpecified;
}
NS_IMETHODIMP
nsStackLayout::Layout(nsIFrame* aBox, nsBoxLayoutState& aState)
{
nsRect clientRect;
aBox->GetClientRect(clientRect);
bool grow;
do {
nsIFrame* child = aBox->GetChildBox();
grow = false;
while (child)
{
nsMargin margin;
child->GetMargin(margin);
nsRect childRect(clientRect);
childRect.Deflate(margin);
if (childRect.width < 0)
childRect.width = 0;
if (childRect.height < 0)
childRect.height = 0;
nsRect oldRect(child->GetRect());
bool sizeChanged = !oldRect.IsEqualEdges(childRect);
// only lay out dirty children or children whose sizes have changed
if (sizeChanged || NS_SUBTREE_DIRTY(child)) {
// add in the child's margin
nsMargin margin;
child->GetMargin(margin);
// obtain our offset from the top left border of the stack's content box.
nsMargin offset;
uint8_t offsetSpecified = GetOffset(aState, child, offset);
// Set the position and size based on which offsets have been specified:
// left only - offset from left edge, preferred width
// right only - offset from right edge, preferred width
// left and right - offset from left and right edges, width in between this
// neither - no offset, full width of stack
// Vertical direction is similar.
//
// Margins on the child are also included in the edge offsets
if (offsetSpecified) {
if (offsetSpecified & SPECIFIED_LEFT) {
childRect.x = clientRect.x + offset.left + margin.left;
if (offsetSpecified & SPECIFIED_RIGHT) {
nsSize min = child->GetMinSize(aState);
nsSize max = child->GetMaxSize(aState);
nscoord width = clientRect.width - offset.LeftRight() - margin.LeftRight();
childRect.width = clamped(width, min.width, max.width);
}
else {
childRect.width = child->GetPrefSize(aState).width;
}
}
else if (offsetSpecified & SPECIFIED_RIGHT) {
childRect.width = child->GetPrefSize(aState).width;
childRect.x = clientRect.XMost() - offset.right - margin.right - childRect.width;
}
if (offsetSpecified & SPECIFIED_TOP) {
childRect.y = clientRect.y + offset.top + margin.top;
if (offsetSpecified & SPECIFIED_BOTTOM) {
nsSize min = child->GetMinSize(aState);
nsSize max = child->GetMaxSize(aState);
nscoord height = clientRect.height - offset.TopBottom() - margin.TopBottom();
childRect.height = clamped(height, min.height, max.height);
}
else {
childRect.height = child->GetPrefSize(aState).height;
}
}
else if (offsetSpecified & SPECIFIED_BOTTOM) {
childRect.height = child->GetPrefSize(aState).height;
childRect.y = clientRect.YMost() - offset.bottom - margin.bottom - childRect.height;
}
}
// Now place the child.
child->SetBounds(aState, childRect);
// Flow the child.
child->Layout(aState);
// Get the child's new rect.
childRect = child->GetRect();
childRect.Inflate(margin);
if (child->StyleXUL()->mStretchStack) {
// Did the child push back on us and get bigger?
if (offset.LeftRight() + childRect.width > clientRect.width) {
clientRect.width = childRect.width + offset.LeftRight();
grow = true;
}
if (offset.TopBottom() + childRect.height > clientRect.height) {
clientRect.height = childRect.height + offset.TopBottom();
grow = true;
}
}
}
child = child->GetNextBox();
}
} while (grow);
// if some HTML inside us got bigger we need to force ourselves to
// get bigger
nsRect bounds(aBox->GetRect());
nsMargin bp;
aBox->GetBorderAndPadding(bp);
clientRect.Inflate(bp);
if (clientRect.width > bounds.width || clientRect.height > bounds.height)
{
if (clientRect.width > bounds.width)
bounds.width = clientRect.width;
if (clientRect.height > bounds.height)
bounds.height = clientRect.height;
aBox->SetBounds(aState, bounds);
}
return NS_OK;
}