1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/forms/nsColorControlFrame.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,142 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsColorControlFrame.h"
1.10 +
1.11 +#include "nsContentCreatorFunctions.h"
1.12 +#include "nsContentList.h"
1.13 +#include "nsContentUtils.h"
1.14 +#include "nsFormControlFrame.h"
1.15 +#include "nsGkAtoms.h"
1.16 +#include "nsIDOMHTMLInputElement.h"
1.17 +#include "nsIDOMNode.h"
1.18 +#include "nsIFormControl.h"
1.19 +#include "nsStyleSet.h"
1.20 +
1.21 +using mozilla::dom::Element;
1.22 +
1.23 +nsColorControlFrame::nsColorControlFrame(nsStyleContext* aContext):
1.24 + nsColorControlFrameSuper(aContext)
1.25 +{
1.26 +}
1.27 +
1.28 +nsIFrame*
1.29 +NS_NewColorControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
1.30 +{
1.31 + return new (aPresShell) nsColorControlFrame(aContext);
1.32 +}
1.33 +
1.34 +NS_IMPL_FRAMEARENA_HELPERS(nsColorControlFrame)
1.35 +
1.36 +NS_QUERYFRAME_HEAD(nsColorControlFrame)
1.37 + NS_QUERYFRAME_ENTRY(nsColorControlFrame)
1.38 + NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
1.39 +NS_QUERYFRAME_TAIL_INHERITING(nsColorControlFrameSuper)
1.40 +
1.41 +
1.42 +void nsColorControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
1.43 +{
1.44 + nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
1.45 + nsContentUtils::DestroyAnonymousContent(&mColorContent);
1.46 + nsColorControlFrameSuper::DestroyFrom(aDestructRoot);
1.47 +}
1.48 +
1.49 +nsIAtom*
1.50 +nsColorControlFrame::GetType() const
1.51 +{
1.52 + return nsGkAtoms::colorControlFrame;
1.53 +}
1.54 +
1.55 +#ifdef DEBUG_FRAME_DUMP
1.56 +nsresult
1.57 +nsColorControlFrame::GetFrameName(nsAString& aResult) const
1.58 +{
1.59 + return MakeFrameName(NS_LITERAL_STRING("ColorControl"), aResult);
1.60 +}
1.61 +#endif
1.62 +
1.63 +// Create the color area for the button.
1.64 +// The frame will be generated by the frame constructor.
1.65 +nsresult
1.66 +nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
1.67 +{
1.68 + nsCOMPtr<nsIDocument> doc = mContent->GetCurrentDoc();
1.69 + mColorContent = doc->CreateHTMLElement(nsGkAtoms::div);
1.70 +
1.71 + // Mark the element to be native anonymous before setting any attributes.
1.72 + mColorContent->SetIsNativeAnonymousRoot();
1.73 +
1.74 + nsresult rv = UpdateColor();
1.75 + NS_ENSURE_SUCCESS(rv, rv);
1.76 +
1.77 + nsCSSPseudoElements::Type pseudoType = nsCSSPseudoElements::ePseudo_mozColorSwatch;
1.78 + nsRefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
1.79 + ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
1.80 + StyleContext(), mColorContent->AsElement());
1.81 + if (!aElements.AppendElement(ContentInfo(mColorContent, newStyleContext))) {
1.82 + return NS_ERROR_OUT_OF_MEMORY;
1.83 + }
1.84 +
1.85 + return NS_OK;
1.86 +}
1.87 +
1.88 +void
1.89 +nsColorControlFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
1.90 + uint32_t aFilter)
1.91 +{
1.92 + aElements.MaybeAppendElement(mColorContent);
1.93 +}
1.94 +
1.95 +nsresult
1.96 +nsColorControlFrame::UpdateColor()
1.97 +{
1.98 + // Get the color from the "value" property of our content; it will return the
1.99 + // default color (through the sanitization algorithm) if there is none.
1.100 + nsAutoString color;
1.101 + nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent);
1.102 + elt->GetValue(color);
1.103 + MOZ_ASSERT(!color.IsEmpty(),
1.104 + "Content node's GetValue() should return a valid color string "
1.105 + "(the default color, in case no valid color is set)");
1.106 +
1.107 + // Set the background-color style property of the swatch element to this color
1.108 + return mColorContent->SetAttr(kNameSpaceID_None, nsGkAtoms::style,
1.109 + NS_LITERAL_STRING("background-color:") + color, true);
1.110 +}
1.111 +
1.112 +nsresult
1.113 +nsColorControlFrame::AttributeChanged(int32_t aNameSpaceID,
1.114 + nsIAtom* aAttribute,
1.115 + int32_t aModType)
1.116 +{
1.117 + NS_ASSERTION(mColorContent, "The color div must exist");
1.118 +
1.119 + // If the value attribute is set, update the color box, but only if we're
1.120 + // still a color control, which might not be the case if the type attribute
1.121 + // was removed/changed.
1.122 + nsCOMPtr<nsIFormControl> fctrl = do_QueryInterface(GetContent());
1.123 + if (fctrl->GetType() == NS_FORM_INPUT_COLOR &&
1.124 + aNameSpaceID == kNameSpaceID_None && nsGkAtoms::value == aAttribute) {
1.125 + UpdateColor();
1.126 + }
1.127 + return nsColorControlFrameSuper::AttributeChanged(aNameSpaceID, aAttribute,
1.128 + aModType);
1.129 +}
1.130 +
1.131 +nsIFrame*
1.132 +nsColorControlFrame::GetContentInsertionFrame()
1.133 +{
1.134 + return this;
1.135 +}
1.136 +
1.137 +Element*
1.138 +nsColorControlFrame::GetPseudoElement(nsCSSPseudoElements::Type aType)
1.139 +{
1.140 + if (aType == nsCSSPseudoElements::ePseudo_mozColorSwatch) {
1.141 + return mColorContent;
1.142 + }
1.143 +
1.144 + return nsContainerFrame::GetPseudoElement(aType);
1.145 +}
