michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsColorControlFrame.h"
michael@0: 
michael@0: #include "nsContentCreatorFunctions.h"
michael@0: #include "nsContentList.h"
michael@0: #include "nsContentUtils.h"
michael@0: #include "nsFormControlFrame.h"
michael@0: #include "nsGkAtoms.h"
michael@0: #include "nsIDOMHTMLInputElement.h"
michael@0: #include "nsIDOMNode.h"
michael@0: #include "nsIFormControl.h"
michael@0: #include "nsStyleSet.h"
michael@0: 
michael@0: using mozilla::dom::Element;
michael@0: 
michael@0: nsColorControlFrame::nsColorControlFrame(nsStyleContext* aContext):
michael@0:   nsColorControlFrameSuper(aContext)
michael@0: {
michael@0: }
michael@0: 
michael@0: nsIFrame*
michael@0: NS_NewColorControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
michael@0: {
michael@0:   return new (aPresShell) nsColorControlFrame(aContext);
michael@0: }
michael@0: 
michael@0: NS_IMPL_FRAMEARENA_HELPERS(nsColorControlFrame)
michael@0: 
michael@0: NS_QUERYFRAME_HEAD(nsColorControlFrame)
michael@0:   NS_QUERYFRAME_ENTRY(nsColorControlFrame)
michael@0:   NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
michael@0: NS_QUERYFRAME_TAIL_INHERITING(nsColorControlFrameSuper)
michael@0: 
michael@0: 
michael@0: void nsColorControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
michael@0: {
michael@0:   nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
michael@0:   nsContentUtils::DestroyAnonymousContent(&mColorContent);
michael@0:   nsColorControlFrameSuper::DestroyFrom(aDestructRoot);
michael@0: }
michael@0: 
michael@0: nsIAtom*
michael@0: nsColorControlFrame::GetType() const
michael@0: {
michael@0:   return nsGkAtoms::colorControlFrame;
michael@0: }
michael@0: 
michael@0: #ifdef DEBUG_FRAME_DUMP
michael@0: nsresult
michael@0: nsColorControlFrame::GetFrameName(nsAString& aResult) const
michael@0: {
michael@0:   return MakeFrameName(NS_LITERAL_STRING("ColorControl"), aResult);
michael@0: }
michael@0: #endif
michael@0: 
michael@0: // Create the color area for the button.
michael@0: // The frame will be generated by the frame constructor.
michael@0: nsresult
michael@0: nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
michael@0: {
michael@0:   nsCOMPtr<nsIDocument> doc = mContent->GetCurrentDoc();
michael@0:   mColorContent = doc->CreateHTMLElement(nsGkAtoms::div);
michael@0: 
michael@0:   // Mark the element to be native anonymous before setting any attributes.
michael@0:   mColorContent->SetIsNativeAnonymousRoot();
michael@0: 
michael@0:   nsresult rv = UpdateColor();
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   nsCSSPseudoElements::Type pseudoType = nsCSSPseudoElements::ePseudo_mozColorSwatch;
michael@0:   nsRefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
michael@0:     ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
michael@0:                               StyleContext(), mColorContent->AsElement());
michael@0:   if (!aElements.AppendElement(ContentInfo(mColorContent, newStyleContext))) {
michael@0:     return NS_ERROR_OUT_OF_MEMORY;
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsColorControlFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
michael@0:                                               uint32_t aFilter)
michael@0: {
michael@0:   aElements.MaybeAppendElement(mColorContent);
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsColorControlFrame::UpdateColor()
michael@0: {
michael@0:   // Get the color from the "value" property of our content; it will return the
michael@0:   // default color (through the sanitization algorithm) if there is none.
michael@0:   nsAutoString color;
michael@0:   nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent);
michael@0:   elt->GetValue(color);
michael@0:   MOZ_ASSERT(!color.IsEmpty(),
michael@0:              "Content node's GetValue() should return a valid color string "
michael@0:              "(the default color, in case no valid color is set)");
michael@0: 
michael@0:   // Set the background-color style property of the swatch element to this color
michael@0:   return mColorContent->SetAttr(kNameSpaceID_None, nsGkAtoms::style,
michael@0:       NS_LITERAL_STRING("background-color:") + color, true);
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsColorControlFrame::AttributeChanged(int32_t  aNameSpaceID,
michael@0:                                       nsIAtom* aAttribute,
michael@0:                                       int32_t  aModType)
michael@0: {
michael@0:   NS_ASSERTION(mColorContent, "The color div must exist");
michael@0: 
michael@0:   // If the value attribute is set, update the color box, but only if we're
michael@0:   // still a color control, which might not be the case if the type attribute
michael@0:   // was removed/changed.
michael@0:   nsCOMPtr<nsIFormControl> fctrl = do_QueryInterface(GetContent());
michael@0:   if (fctrl->GetType() == NS_FORM_INPUT_COLOR &&
michael@0:       aNameSpaceID == kNameSpaceID_None && nsGkAtoms::value == aAttribute) {
michael@0:     UpdateColor();
michael@0:   }
michael@0:   return nsColorControlFrameSuper::AttributeChanged(aNameSpaceID, aAttribute,
michael@0:                                                     aModType);
michael@0: }
michael@0: 
michael@0: nsIFrame*
michael@0: nsColorControlFrame::GetContentInsertionFrame()
michael@0: {
michael@0:   return this;
michael@0: }
michael@0: 
michael@0: Element*
michael@0: nsColorControlFrame::GetPseudoElement(nsCSSPseudoElements::Type aType)
michael@0: {
michael@0:   if (aType == nsCSSPseudoElements::ePseudo_mozColorSwatch) {
michael@0:     return mColorContent;
michael@0:   }
michael@0: 
michael@0:   return nsContainerFrame::GetPseudoElement(aType);
michael@0: }