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/* -*- 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 "nsColorControlFrame.h"
#include "nsContentCreatorFunctions.h"
#include "nsContentList.h"
#include "nsContentUtils.h"
#include "nsCSSPseudoElements.h"
#include "nsFormControlFrame.h"
#include "nsGkAtoms.h"
#include "nsIDOMHTMLInputElement.h"
#include "nsIDOMNode.h"
#include "nsIFormControl.h"
#include "mozilla/StyleSetHandle.h"
#include "mozilla/StyleSetHandleInlines.h"
#include "nsIDocument.h"
using mozilla::dom::Element;
nsColorControlFrame::nsColorControlFrame(nsStyleContext* aContext)
: nsHTMLButtonControlFrame(aContext)
{
}
nsIFrame*
NS_NewColorControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsColorControlFrame(aContext);
}
NS_IMPL_FRAMEARENA_HELPERS(nsColorControlFrame)
NS_QUERYFRAME_HEAD(nsColorControlFrame)
NS_QUERYFRAME_ENTRY(nsColorControlFrame)
NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
NS_QUERYFRAME_TAIL_INHERITING(nsHTMLButtonControlFrame)
void nsColorControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
{
nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
nsContentUtils::DestroyAnonymousContent(&mColorContent);
nsHTMLButtonControlFrame::DestroyFrom(aDestructRoot);
}
nsIAtom*
nsColorControlFrame::GetType() const
{
return nsGkAtoms::colorControlFrame;
}
#ifdef DEBUG_FRAME_DUMP
nsresult
nsColorControlFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("ColorControl"), aResult);
}
#endif
// Create the color area for the button.
// The frame will be generated by the frame constructor.
nsresult
nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
{
nsCOMPtr<nsIDocument> doc = mContent->GetComposedDoc();
mColorContent = doc->CreateHTMLElement(nsGkAtoms::div);
// Mark the element to be native anonymous before setting any attributes.
mColorContent->SetIsNativeAnonymousRoot();
nsresult rv = UpdateColor();
NS_ENSURE_SUCCESS(rv, rv);
CSSPseudoElementType pseudoType = CSSPseudoElementType::mozColorSwatch;
RefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
StyleContext(), mColorContent->AsElement());
if (!aElements.AppendElement(ContentInfo(mColorContent, newStyleContext))) {
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
void
nsColorControlFrame::AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilter)
{
if (mColorContent) {
aElements.AppendElement(mColorContent);
}
}
nsresult
nsColorControlFrame::UpdateColor()
{
// Get the color from the "value" property of our content; it will return the
// default color (through the sanitization algorithm) if there is none.
nsAutoString color;
nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent);
elt->GetValue(color);
MOZ_ASSERT(!color.IsEmpty(),
"Content node's GetValue() should return a valid color string "
"(the default color, in case no valid color is set)");
// Set the background-color style property of the swatch element to this color
return mColorContent->SetAttr(kNameSpaceID_None, nsGkAtoms::style,
NS_LITERAL_STRING("background-color:") + color, true);
}
nsresult
nsColorControlFrame::AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType)
{
NS_ASSERTION(mColorContent, "The color div must exist");
// If the value attribute is set, update the color box, but only if we're
// still a color control, which might not be the case if the type attribute
// was removed/changed.
nsCOMPtr<nsIFormControl> fctrl = do_QueryInterface(GetContent());
if (fctrl->GetType() == NS_FORM_INPUT_COLOR &&
aNameSpaceID == kNameSpaceID_None && nsGkAtoms::value == aAttribute) {
UpdateColor();
}
return nsHTMLButtonControlFrame::AttributeChanged(aNameSpaceID, aAttribute,
aModType);
}
nsContainerFrame*
nsColorControlFrame::GetContentInsertionFrame()
{
return this;
}
Element*
nsColorControlFrame::GetPseudoElement(CSSPseudoElementType aType)
{
if (aType == CSSPseudoElementType::mozColorSwatch) {
return mColorContent;
}
return nsContainerFrame::GetPseudoElement(aType);
}
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