зеркало из https://github.com/mozilla/gecko-dev.git
290 строки
10 KiB
C++
290 строки
10 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/. */
|
|
|
|
#include "nsProgressFrame.h"
|
|
|
|
#include "nsIContent.h"
|
|
#include "nsPresContext.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "nsINameSpaceManager.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsIPresShell.h"
|
|
#include "nsNodeInfoManager.h"
|
|
#include "nsINodeInfo.h"
|
|
#include "nsContentCreatorFunctions.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsFormControlFrame.h"
|
|
#include "nsFontMetrics.h"
|
|
#include "mozilla/dom/Element.h"
|
|
#include "mozilla/dom/HTMLProgressElement.h"
|
|
#include "nsContentList.h"
|
|
#include "nsStyleSet.h"
|
|
#include "nsThemeConstants.h"
|
|
#include <algorithm>
|
|
|
|
using namespace mozilla::dom;
|
|
|
|
nsIFrame*
|
|
NS_NewProgressFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsProgressFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsProgressFrame)
|
|
|
|
nsProgressFrame::nsProgressFrame(nsStyleContext* aContext)
|
|
: nsContainerFrame(aContext)
|
|
, mBarDiv(nullptr)
|
|
{
|
|
}
|
|
|
|
nsProgressFrame::~nsProgressFrame()
|
|
{
|
|
}
|
|
|
|
void
|
|
nsProgressFrame::DestroyFrom(nsIFrame* aDestructRoot)
|
|
{
|
|
NS_ASSERTION(!GetPrevContinuation(),
|
|
"nsProgressFrame should not have continuations; if it does we "
|
|
"need to call RegUnregAccessKey only for the first.");
|
|
nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
|
|
nsContentUtils::DestroyAnonymousContent(&mBarDiv);
|
|
nsContainerFrame::DestroyFrom(aDestructRoot);
|
|
}
|
|
|
|
nsresult
|
|
nsProgressFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
|
|
{
|
|
// Create the progress bar div.
|
|
nsCOMPtr<nsIDocument> doc = mContent->GetDocument();
|
|
mBarDiv = doc->CreateHTMLElement(nsGkAtoms::div);
|
|
|
|
// Associate ::-moz-progress-bar pseudo-element to the anonymous child.
|
|
nsCSSPseudoElements::Type pseudoType = nsCSSPseudoElements::ePseudo_mozProgressBar;
|
|
nsRefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
|
|
ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
|
|
StyleContext(), mBarDiv->AsElement());
|
|
|
|
if (!aElements.AppendElement(ContentInfo(mBarDiv, newStyleContext))) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsProgressFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
|
|
uint32_t aFilter)
|
|
{
|
|
aElements.MaybeAppendElement(mBarDiv);
|
|
}
|
|
|
|
NS_QUERYFRAME_HEAD(nsProgressFrame)
|
|
NS_QUERYFRAME_ENTRY(nsProgressFrame)
|
|
NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
|
|
NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
|
|
|
|
|
|
void
|
|
nsProgressFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists)
|
|
{
|
|
BuildDisplayListForInline(aBuilder, aDirtyRect, aLists);
|
|
}
|
|
|
|
nsresult nsProgressFrame::Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
DO_GLOBAL_REFLOW_COUNT("nsProgressFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
|
|
|
|
NS_ASSERTION(mBarDiv, "Progress bar div must exist!");
|
|
NS_ASSERTION(!GetPrevContinuation(),
|
|
"nsProgressFrame should not have continuations; if it does we "
|
|
"need to call RegUnregAccessKey only for the first.");
|
|
|
|
if (mState & NS_FRAME_FIRST_REFLOW) {
|
|
nsFormControlFrame::RegUnRegAccessKey(this, true);
|
|
}
|
|
|
|
nsIFrame* barFrame = mBarDiv->GetPrimaryFrame();
|
|
NS_ASSERTION(barFrame, "The progress frame should have a child with a frame!");
|
|
|
|
ReflowBarFrame(barFrame, aPresContext, aReflowState, aStatus);
|
|
|
|
aDesiredSize.Width() = aReflowState.ComputedWidth() +
|
|
aReflowState.ComputedPhysicalBorderPadding().LeftRight();
|
|
aDesiredSize.Height() = aReflowState.ComputedHeight() +
|
|
aReflowState.ComputedPhysicalBorderPadding().TopBottom();
|
|
|
|
aDesiredSize.SetOverflowAreasToDesiredBounds();
|
|
ConsiderChildOverflow(aDesiredSize.mOverflowAreas, barFrame);
|
|
FinishAndStoreOverflow(&aDesiredSize);
|
|
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsProgressFrame::ReflowBarFrame(nsIFrame* aBarFrame,
|
|
nsPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
bool vertical = StyleDisplay()->mOrient == NS_STYLE_ORIENT_VERTICAL;
|
|
nsHTMLReflowState reflowState(aPresContext, aReflowState, aBarFrame,
|
|
nsSize(aReflowState.ComputedWidth(),
|
|
NS_UNCONSTRAINEDSIZE));
|
|
nscoord size = vertical ? aReflowState.ComputedHeight()
|
|
: aReflowState.ComputedWidth();
|
|
nscoord xoffset = aReflowState.ComputedPhysicalBorderPadding().left;
|
|
nscoord yoffset = aReflowState.ComputedPhysicalBorderPadding().top;
|
|
|
|
double position = static_cast<HTMLProgressElement*>(mContent)->Position();
|
|
|
|
// Force the bar's size to match the current progress.
|
|
// When indeterminate, the progress' size will be 100%.
|
|
if (position >= 0.0) {
|
|
size *= position;
|
|
}
|
|
|
|
if (!vertical && StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL) {
|
|
xoffset += aReflowState.ComputedWidth() - size;
|
|
}
|
|
|
|
// The bar size is fixed in these cases:
|
|
// - the progress position is determined: the bar size is fixed according
|
|
// to it's value.
|
|
// - the progress position is indeterminate and the bar appearance should be
|
|
// shown as native: the bar size is forced to 100%.
|
|
// Otherwise (when the progress is indeterminate and the bar appearance isn't
|
|
// native), the bar size isn't fixed and can be set by the author.
|
|
if (position != -1 || ShouldUseNativeStyle()) {
|
|
if (vertical) {
|
|
// We want the bar to begin at the bottom.
|
|
yoffset += aReflowState.ComputedHeight() - size;
|
|
|
|
size -= reflowState.ComputedPhysicalMargin().TopBottom() +
|
|
reflowState.ComputedPhysicalBorderPadding().TopBottom();
|
|
size = std::max(size, 0);
|
|
reflowState.SetComputedHeight(size);
|
|
} else {
|
|
size -= reflowState.ComputedPhysicalMargin().LeftRight() +
|
|
reflowState.ComputedPhysicalBorderPadding().LeftRight();
|
|
size = std::max(size, 0);
|
|
reflowState.SetComputedWidth(size);
|
|
}
|
|
} else if (vertical) {
|
|
// For vertical progress bars, we need to position the bar specificly when
|
|
// the width isn't constrained (position == -1 and !ShouldUseNativeStyle())
|
|
// because aReflowState.ComputedHeight() - size == 0.
|
|
yoffset += aReflowState.ComputedHeight() - reflowState.ComputedHeight();
|
|
}
|
|
|
|
xoffset += reflowState.ComputedPhysicalMargin().left;
|
|
yoffset += reflowState.ComputedPhysicalMargin().top;
|
|
|
|
nsHTMLReflowMetrics barDesiredSize(aReflowState.GetWritingMode());
|
|
ReflowChild(aBarFrame, aPresContext, barDesiredSize, reflowState, xoffset,
|
|
yoffset, 0, aStatus);
|
|
FinishReflowChild(aBarFrame, aPresContext, barDesiredSize, &reflowState,
|
|
xoffset, yoffset, 0);
|
|
}
|
|
|
|
nsresult
|
|
nsProgressFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType)
|
|
{
|
|
NS_ASSERTION(mBarDiv, "Progress bar div must exist!");
|
|
|
|
if (aNameSpaceID == kNameSpaceID_None &&
|
|
(aAttribute == nsGkAtoms::value || aAttribute == nsGkAtoms::max)) {
|
|
nsIFrame* barFrame = mBarDiv->GetPrimaryFrame();
|
|
NS_ASSERTION(barFrame, "The progress frame should have a child with a frame!");
|
|
PresContext()->PresShell()->FrameNeedsReflow(barFrame, nsIPresShell::eResize,
|
|
NS_FRAME_IS_DIRTY);
|
|
InvalidateFrame();
|
|
}
|
|
|
|
return nsContainerFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
|
|
}
|
|
|
|
nsSize
|
|
nsProgressFrame::ComputeAutoSize(nsRenderingContext *aRenderingContext,
|
|
nsSize aCBSize, nscoord aAvailableWidth,
|
|
nsSize aMargin, nsSize aBorder,
|
|
nsSize aPadding, bool aShrinkWrap)
|
|
{
|
|
nsSize autoSize;
|
|
autoSize.height = autoSize.width =
|
|
NSToCoordRound(StyleFont()->mFont.size *
|
|
nsLayoutUtils::FontSizeInflationFor(this)); // 1em
|
|
|
|
if (StyleDisplay()->mOrient == NS_STYLE_ORIENT_VERTICAL) {
|
|
autoSize.height *= 10; // 10em
|
|
} else {
|
|
autoSize.width *= 10; // 10em
|
|
}
|
|
|
|
return autoSize;
|
|
}
|
|
|
|
nscoord
|
|
nsProgressFrame::GetMinWidth(nsRenderingContext *aRenderingContext)
|
|
{
|
|
nsRefPtr<nsFontMetrics> fontMet;
|
|
NS_ENSURE_SUCCESS(
|
|
nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fontMet)), 0);
|
|
|
|
nscoord minWidth = fontMet->Font().size; // 1em
|
|
|
|
if (StyleDisplay()->mOrient == NS_STYLE_ORIENT_AUTO ||
|
|
StyleDisplay()->mOrient == NS_STYLE_ORIENT_HORIZONTAL) {
|
|
// The orientation is horizontal
|
|
minWidth *= 10; // 10em
|
|
}
|
|
|
|
return minWidth;
|
|
}
|
|
|
|
nscoord
|
|
nsProgressFrame::GetPrefWidth(nsRenderingContext *aRenderingContext)
|
|
{
|
|
return GetMinWidth(aRenderingContext);
|
|
}
|
|
|
|
bool
|
|
nsProgressFrame::ShouldUseNativeStyle() const
|
|
{
|
|
// Use the native style if these conditions are satisfied:
|
|
// - both frames use the native appearance;
|
|
// - neither frame has author specified rules setting the border or the
|
|
// background.
|
|
return StyleDisplay()->mAppearance == NS_THEME_PROGRESSBAR &&
|
|
mBarDiv->GetPrimaryFrame()->StyleDisplay()->mAppearance == NS_THEME_PROGRESSBAR_CHUNK &&
|
|
!PresContext()->HasAuthorSpecifiedRules(const_cast<nsProgressFrame*>(this),
|
|
NS_AUTHOR_SPECIFIED_BORDER | NS_AUTHOR_SPECIFIED_BACKGROUND) &&
|
|
!PresContext()->HasAuthorSpecifiedRules(mBarDiv->GetPrimaryFrame(),
|
|
NS_AUTHOR_SPECIFIED_BORDER | NS_AUTHOR_SPECIFIED_BACKGROUND);
|
|
}
|
|
|
|
Element*
|
|
nsProgressFrame::GetPseudoElement(nsCSSPseudoElements::Type aType)
|
|
{
|
|
if (aType == nsCSSPseudoElements::ePseudo_mozProgressBar) {
|
|
return mBarDiv;
|
|
}
|
|
|
|
return nsContainerFrame::GetPseudoElement(aType);
|
|
}
|