145 lines
4.3 KiB
C++
145 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsColorControlFrame.h"
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#include "nsContentCreatorFunctions.h"
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#include "nsContentList.h"
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#include "nsContentUtils.h"
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#include "nsCSSPseudoElements.h"
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#include "nsFormControlFrame.h"
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#include "nsGkAtoms.h"
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#include "nsIDOMHTMLInputElement.h"
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#include "nsIDOMNode.h"
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#include "nsIFormControl.h"
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#include "mozilla/StyleSetHandle.h"
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#include "mozilla/StyleSetHandleInlines.h"
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#include "nsIDocument.h"
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using mozilla::dom::Element;
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nsColorControlFrame::nsColorControlFrame(nsStyleContext* aContext)
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: nsHTMLButtonControlFrame(aContext)
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{
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}
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nsIFrame*
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NS_NewColorControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsColorControlFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsColorControlFrame)
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NS_QUERYFRAME_HEAD(nsColorControlFrame)
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NS_QUERYFRAME_ENTRY(nsColorControlFrame)
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NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
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NS_QUERYFRAME_TAIL_INHERITING(nsHTMLButtonControlFrame)
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void nsColorControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
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{
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nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
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nsContentUtils::DestroyAnonymousContent(&mColorContent);
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nsHTMLButtonControlFrame::DestroyFrom(aDestructRoot);
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}
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nsIAtom*
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nsColorControlFrame::GetType() const
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{
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return nsGkAtoms::colorControlFrame;
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}
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#ifdef DEBUG_FRAME_DUMP
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nsresult
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nsColorControlFrame::GetFrameName(nsAString& aResult) const
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{
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return MakeFrameName(NS_LITERAL_STRING("ColorControl"), aResult);
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}
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#endif
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// Create the color area for the button.
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// The frame will be generated by the frame constructor.
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nsresult
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nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
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{
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nsCOMPtr<nsIDocument> doc = mContent->GetComposedDoc();
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mColorContent = doc->CreateHTMLElement(nsGkAtoms::div);
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mColorContent->SetPseudoElementType(CSSPseudoElementType::mozColorSwatch);
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// Mark the element to be native anonymous before setting any attributes.
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mColorContent->SetIsNativeAnonymousRoot();
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nsresult rv = UpdateColor();
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NS_ENSURE_SUCCESS(rv, rv);
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if (!aElements.AppendElement(mColorContent)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return NS_OK;
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}
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void
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nsColorControlFrame::AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
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uint32_t aFilter)
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{
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if (mColorContent) {
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aElements.AppendElement(mColorContent);
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}
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}
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nsresult
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nsColorControlFrame::UpdateColor()
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{
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// Get the color from the "value" property of our content; it will return the
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// default color (through the sanitization algorithm) if there is none.
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nsAutoString color;
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nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent);
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elt->GetValue(color);
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MOZ_ASSERT(!color.IsEmpty(),
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"Content node's GetValue() should return a valid color string "
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"(the default color, in case no valid color is set)");
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// Set the background-color style property of the swatch element to this color
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return mColorContent->SetAttr(kNameSpaceID_None, nsGkAtoms::style,
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NS_LITERAL_STRING("background-color:") + color, true);
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}
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nsresult
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nsColorControlFrame::AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType)
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{
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NS_ASSERTION(mColorContent, "The color div must exist");
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// If the value attribute is set, update the color box, but only if we're
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// still a color control, which might not be the case if the type attribute
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// was removed/changed.
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nsCOMPtr<nsIFormControl> fctrl = do_QueryInterface(GetContent());
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if (fctrl->GetType() == NS_FORM_INPUT_COLOR &&
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aNameSpaceID == kNameSpaceID_None && nsGkAtoms::value == aAttribute) {
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UpdateColor();
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}
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return nsHTMLButtonControlFrame::AttributeChanged(aNameSpaceID, aAttribute,
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aModType);
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}
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nsContainerFrame*
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nsColorControlFrame::GetContentInsertionFrame()
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{
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return this;
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}
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Element*
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nsColorControlFrame::GetPseudoElement(CSSPseudoElementType aType)
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{
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if (aType == CSSPseudoElementType::mozColorSwatch) {
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return mColorContent;
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}
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return nsContainerFrame::GetPseudoElement(aType);
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}
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