gecko-dev/layout/forms/nsDateTimeControlFrame.cpp

276 строки
10 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
/**
* This frame type is used for input type=date, time, month, week, and
* datetime-local.
*/
#include "nsDateTimeControlFrame.h"
#include "nsContentUtils.h"
#include "nsCheckboxRadioFrame.h"
#include "nsGkAtoms.h"
#include "nsContentCreatorFunctions.h"
#include "mozilla/AsyncEventDispatcher.h"
#include "mozilla/PresShell.h"
#include "mozilla/dom/HTMLInputElement.h"
#include "mozilla/dom/MutationEventBinding.h"
#include "nsNodeInfoManager.h"
#include "nsIObserverService.h"
#include "jsapi.h"
#include "nsJSUtils.h"
#include "nsThreadUtils.h"
using namespace mozilla;
using namespace mozilla::dom;
nsIFrame* NS_NewDateTimeControlFrame(PresShell* aPresShell,
ComputedStyle* aStyle) {
return new (aPresShell)
nsDateTimeControlFrame(aStyle, aPresShell->GetPresContext());
}
NS_IMPL_FRAMEARENA_HELPERS(nsDateTimeControlFrame)
NS_QUERYFRAME_HEAD(nsDateTimeControlFrame)
NS_QUERYFRAME_ENTRY(nsDateTimeControlFrame)
NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
nsDateTimeControlFrame::nsDateTimeControlFrame(ComputedStyle* aStyle,
nsPresContext* aPresContext)
: nsContainerFrame(aStyle, aPresContext, kClassID) {}
nscoord nsDateTimeControlFrame::GetMinISize(gfxContext* aRenderingContext) {
nscoord result;
DISPLAY_MIN_INLINE_SIZE(this, result);
nsIFrame* kid = mFrames.FirstChild();
if (kid) { // display:none?
result = nsLayoutUtils::IntrinsicForContainer(aRenderingContext, kid,
nsLayoutUtils::MIN_ISIZE);
} else {
result = 0;
}
return result;
}
nscoord nsDateTimeControlFrame::GetPrefISize(gfxContext* aRenderingContext) {
nscoord result;
DISPLAY_PREF_INLINE_SIZE(this, result);
nsIFrame* kid = mFrames.FirstChild();
if (kid) { // display:none?
result = nsLayoutUtils::IntrinsicForContainer(aRenderingContext, kid,
nsLayoutUtils::PREF_ISIZE);
} else {
result = 0;
}
return result;
}
void nsDateTimeControlFrame::Reflow(nsPresContext* aPresContext,
ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus) {
MarkInReflow();
DO_GLOBAL_REFLOW_COUNT("nsDateTimeControlFrame");
DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
NS_FRAME_TRACE(
NS_FRAME_TRACE_CALLS,
("enter nsDateTimeControlFrame::Reflow: availSize=%d,%d",
aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight()));
NS_ASSERTION(mFrames.GetLength() <= 1,
"There should be no more than 1 frames");
const WritingMode myWM = aReflowInput.GetWritingMode();
// The ISize of our content box, which is the available ISize
// for our anonymous content:
const nscoord contentBoxISize = aReflowInput.ComputedISize();
nscoord contentBoxBSize = aReflowInput.ComputedBSize();
// Figure out our border-box sizes as well (by adding borderPadding to
// content-box sizes):
const nscoord borderBoxISize =
contentBoxISize +
aReflowInput.ComputedLogicalBorderPadding().IStartEnd(myWM);
nscoord borderBoxBSize;
if (contentBoxBSize != NS_UNCONSTRAINEDSIZE) {
borderBoxBSize =
contentBoxBSize +
aReflowInput.ComputedLogicalBorderPadding().BStartEnd(myWM);
} // else, we'll figure out borderBoxBSize after we resolve contentBoxBSize.
nsIFrame* inputAreaFrame = mFrames.FirstChild();
if (!inputAreaFrame) { // display:none?
if (contentBoxBSize == NS_UNCONSTRAINEDSIZE) {
contentBoxBSize = 0;
borderBoxBSize =
aReflowInput.ComputedLogicalBorderPadding().BStartEnd(myWM);
}
} else {
ReflowOutput childDesiredSize(aReflowInput);
WritingMode wm = inputAreaFrame->GetWritingMode();
LogicalSize availSize = aReflowInput.ComputedSize(wm);
availSize.BSize(wm) = NS_UNCONSTRAINEDSIZE;
ReflowInput childReflowOuput(aPresContext, aReflowInput, inputAreaFrame,
availSize);
// Convert input area margin into my own writing-mode (in case it differs):
LogicalMargin childMargin =
childReflowOuput.ComputedLogicalMargin().ConvertTo(myWM, wm);
// offsets of input area frame within this frame:
LogicalPoint childOffset(
myWM,
aReflowInput.ComputedLogicalBorderPadding().IStart(myWM) +
childMargin.IStart(myWM),
aReflowInput.ComputedLogicalBorderPadding().BStart(myWM) +
childMargin.BStart(myWM));
nsReflowStatus childStatus;
// We initially reflow the child with a dummy containerSize; positioning
// will be fixed later.
const nsSize dummyContainerSize;
ReflowChild(inputAreaFrame, aPresContext, childDesiredSize,
childReflowOuput, myWM, childOffset, dummyContainerSize, 0,
childStatus);
MOZ_ASSERT(childStatus.IsFullyComplete(),
"We gave our child unconstrained available block-size, "
"so it should be complete");
nscoord childMarginBoxBSize =
childDesiredSize.BSize(myWM) + childMargin.BStartEnd(myWM);
if (contentBoxBSize == NS_UNCONSTRAINEDSIZE) {
// We are intrinsically sized -- we should shrinkwrap the input area's
// block-size:
contentBoxBSize = childMarginBoxBSize;
// Make sure we obey min/max-bsize in the case when we're doing intrinsic
// sizing (we get it for free when we have a non-intrinsic
// aReflowInput.ComputedBSize()). Note that we do this before
// adjusting for borderpadding, since ComputedMaxBSize and
// ComputedMinBSize are content heights.
contentBoxBSize =
NS_CSS_MINMAX(contentBoxBSize, aReflowInput.ComputedMinBSize(),
aReflowInput.ComputedMaxBSize());
borderBoxBSize =
contentBoxBSize +
aReflowInput.ComputedLogicalBorderPadding().BStartEnd(myWM);
}
// Center child in block axis
nscoord extraSpace = contentBoxBSize - childMarginBoxBSize;
childOffset.B(myWM) += std::max(0, extraSpace / 2);
// Needed in FinishReflowChild, for logical-to-physical conversion:
nsSize borderBoxSize =
LogicalSize(myWM, borderBoxISize, borderBoxBSize).GetPhysicalSize(myWM);
// Place the child
FinishReflowChild(inputAreaFrame, aPresContext, childDesiredSize,
&childReflowOuput, myWM, childOffset, borderBoxSize, 0);
if (!aReflowInput.mStyleDisplay->IsContainLayout()) {
nsSize contentBoxSize =
LogicalSize(myWM, contentBoxISize, contentBoxBSize)
.GetPhysicalSize(myWM);
aDesiredSize.SetBlockStartAscent(
childDesiredSize.BlockStartAscent() +
inputAreaFrame->BStart(aReflowInput.GetWritingMode(),
contentBoxSize));
} // else: we're layout-contained, and so we have no baseline.
}
LogicalSize logicalDesiredSize(myWM, borderBoxISize, borderBoxBSize);
aDesiredSize.SetSize(myWM, logicalDesiredSize);
aDesiredSize.SetOverflowAreasToDesiredBounds();
if (inputAreaFrame) {
ConsiderChildOverflow(aDesiredSize.mOverflowAreas, inputAreaFrame);
}
FinishAndStoreOverflow(&aDesiredSize);
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("exit nsDateTimeControlFrame::Reflow: size=%d,%d",
aDesiredSize.Width(), aDesiredSize.Height()));
NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aDesiredSize);
}
void nsDateTimeControlFrame::SyncDisabledState() {
Element* dateTimeBoxElement =
static_cast<dom::HTMLInputElement*>(GetContent())
->GetDateTimeBoxElement();
if (!dateTimeBoxElement) {
return;
}
AsyncEventDispatcher* dispatcher = new AsyncEventDispatcher(
dateTimeBoxElement, NS_LITERAL_STRING("MozDateTimeAttributeChanged"),
CanBubble::eNo, ChromeOnlyDispatch::eNo);
dispatcher->RunDOMEventWhenSafe();
}
nsresult nsDateTimeControlFrame::AttributeChanged(int32_t aNameSpaceID,
nsAtom* aAttribute,
int32_t aModType) {
// nsGkAtoms::disabled is handled by SyncDisabledState
if (aNameSpaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::value || aAttribute == nsGkAtoms::readonly ||
aAttribute == nsGkAtoms::tabindex) {
MOZ_ASSERT(mContent->IsHTMLElement(nsGkAtoms::input), "bad cast");
auto contentAsInputElem =
static_cast<dom::HTMLInputElement*>(GetContent());
// If script changed the <input>'s type before setting these attributes
// then we don't need to do anything since we are going to be reframed.
if (contentAsInputElem->ControlType() == NS_FORM_INPUT_TIME ||
contentAsInputElem->ControlType() == NS_FORM_INPUT_DATE) {
Element* dateTimeBoxElement =
static_cast<dom::HTMLInputElement*>(GetContent())
->GetDateTimeBoxElement();
if (aAttribute == nsGkAtoms::value) {
if (dateTimeBoxElement) {
AsyncEventDispatcher* dispatcher = new AsyncEventDispatcher(
dateTimeBoxElement,
NS_LITERAL_STRING("MozDateTimeValueChanged"), CanBubble::eNo,
ChromeOnlyDispatch::eNo);
dispatcher->RunDOMEventWhenSafe();
}
} else {
if (dateTimeBoxElement) {
AsyncEventDispatcher* dispatcher = new AsyncEventDispatcher(
dateTimeBoxElement,
NS_LITERAL_STRING("MozDateTimeAttributeChanged"),
CanBubble::eNo, ChromeOnlyDispatch::eNo);
dispatcher->RunDOMEventWhenSafe();
}
}
}
}
}
return nsContainerFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
}
void nsDateTimeControlFrame::ContentStatesChanged(EventStates aStates) {
if (aStates.HasState(NS_EVENT_STATE_DISABLED)) {
nsContentUtils::AddScriptRunner(new SyncDisabledStateEvent(this));
}
}