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comparison: layout/forms/nsColorControlFrame.cpp
layout/forms/nsColorControlFrame.cpp
- changeset 0
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "nsColorControlFrame.h" | |
| 7 | |
| 8 #include "nsContentCreatorFunctions.h" | |
| 9 #include "nsContentList.h" | |
| 10 #include "nsContentUtils.h" | |
| 11 #include "nsFormControlFrame.h" | |
| 12 #include "nsGkAtoms.h" | |
| 13 #include "nsIDOMHTMLInputElement.h" | |
| 14 #include "nsIDOMNode.h" | |
| 15 #include "nsIFormControl.h" | |
| 16 #include "nsStyleSet.h" | |
| 17 | |
| 18 using mozilla::dom::Element; | |
| 19 | |
| 20 nsColorControlFrame::nsColorControlFrame(nsStyleContext* aContext): | |
| 21 nsColorControlFrameSuper(aContext) | |
| 22 { | |
| 23 } | |
| 24 | |
| 25 nsIFrame* | |
| 26 NS_NewColorControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) | |
| 27 { | |
| 28 return new (aPresShell) nsColorControlFrame(aContext); | |
| 29 } | |
| 30 | |
| 31 NS_IMPL_FRAMEARENA_HELPERS(nsColorControlFrame) | |
| 32 | |
| 33 NS_QUERYFRAME_HEAD(nsColorControlFrame) | |
| 34 NS_QUERYFRAME_ENTRY(nsColorControlFrame) | |
| 35 NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator) | |
| 36 NS_QUERYFRAME_TAIL_INHERITING(nsColorControlFrameSuper) | |
| 37 | |
| 38 | |
| 39 void nsColorControlFrame::DestroyFrom(nsIFrame* aDestructRoot) | |
| 40 { | |
| 41 nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false); | |
| 42 nsContentUtils::DestroyAnonymousContent(&mColorContent); | |
| 43 nsColorControlFrameSuper::DestroyFrom(aDestructRoot); | |
| 44 } | |
| 45 | |
| 46 nsIAtom* | |
| 47 nsColorControlFrame::GetType() const | |
| 48 { | |
| 49 return nsGkAtoms::colorControlFrame; | |
| 50 } | |
| 51 | |
| 52 #ifdef DEBUG_FRAME_DUMP | |
| 53 nsresult | |
| 54 nsColorControlFrame::GetFrameName(nsAString& aResult) const | |
| 55 { | |
| 56 return MakeFrameName(NS_LITERAL_STRING("ColorControl"), aResult); | |
| 57 } | |
| 58 #endif | |
| 59 | |
| 60 // Create the color area for the button. | |
| 61 // The frame will be generated by the frame constructor. | |
| 62 nsresult | |
| 63 nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements) | |
| 64 { | |
| 65 nsCOMPtr<nsIDocument> doc = mContent->GetCurrentDoc(); | |
| 66 mColorContent = doc->CreateHTMLElement(nsGkAtoms::div); | |
| 67 | |
| 68 // Mark the element to be native anonymous before setting any attributes. | |
| 69 mColorContent->SetIsNativeAnonymousRoot(); | |
| 70 | |
| 71 nsresult rv = UpdateColor(); | |
| 72 NS_ENSURE_SUCCESS(rv, rv); | |
| 73 | |
| 74 nsCSSPseudoElements::Type pseudoType = nsCSSPseudoElements::ePseudo_mozColorSwatch; | |
| 75 nsRefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()-> | |
| 76 ResolvePseudoElementStyle(mContent->AsElement(), pseudoType, | |
| 77 StyleContext(), mColorContent->AsElement()); | |
| 78 if (!aElements.AppendElement(ContentInfo(mColorContent, newStyleContext))) { | |
| 79 return NS_ERROR_OUT_OF_MEMORY; | |
| 80 } | |
| 81 | |
| 82 return NS_OK; | |
| 83 } | |
| 84 | |
| 85 void | |
| 86 nsColorControlFrame::AppendAnonymousContentTo(nsBaseContentList& aElements, | |
| 87 uint32_t aFilter) | |
| 88 { | |
| 89 aElements.MaybeAppendElement(mColorContent); | |
| 90 } | |
| 91 | |
| 92 nsresult | |
| 93 nsColorControlFrame::UpdateColor() | |
| 94 { | |
| 95 // Get the color from the "value" property of our content; it will return the | |
| 96 // default color (through the sanitization algorithm) if there is none. | |
| 97 nsAutoString color; | |
| 98 nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent); | |
| 99 elt->GetValue(color); | |
| 100 MOZ_ASSERT(!color.IsEmpty(), | |
| 101 "Content node's GetValue() should return a valid color string " | |
| 102 "(the default color, in case no valid color is set)"); | |
| 103 | |
| 104 // Set the background-color style property of the swatch element to this color | |
| 105 return mColorContent->SetAttr(kNameSpaceID_None, nsGkAtoms::style, | |
| 106 NS_LITERAL_STRING("background-color:") + color, true); | |
| 107 } | |
| 108 | |
| 109 nsresult | |
| 110 nsColorControlFrame::AttributeChanged(int32_t aNameSpaceID, | |
| 111 nsIAtom* aAttribute, | |
| 112 int32_t aModType) | |
| 113 { | |
| 114 NS_ASSERTION(mColorContent, "The color div must exist"); | |
| 115 | |
| 116 // If the value attribute is set, update the color box, but only if we're | |
| 117 // still a color control, which might not be the case if the type attribute | |
| 118 // was removed/changed. | |
| 119 nsCOMPtr<nsIFormControl> fctrl = do_QueryInterface(GetContent()); | |
| 120 if (fctrl->GetType() == NS_FORM_INPUT_COLOR && | |
| 121 aNameSpaceID == kNameSpaceID_None && nsGkAtoms::value == aAttribute) { | |
| 122 UpdateColor(); | |
| 123 } | |
| 124 return nsColorControlFrameSuper::AttributeChanged(aNameSpaceID, aAttribute, | |
| 125 aModType); | |
| 126 } | |
| 127 | |
| 128 nsIFrame* | |
| 129 nsColorControlFrame::GetContentInsertionFrame() | |
| 130 { | |
| 131 return this; | |
| 132 } | |
| 133 | |
| 134 Element* | |
| 135 nsColorControlFrame::GetPseudoElement(nsCSSPseudoElements::Type aType) | |
| 136 { | |
| 137 if (aType == nsCSSPseudoElements::ePseudo_mozColorSwatch) { | |
| 138 return mColorContent; | |
| 139 } | |
| 140 | |
| 141 return nsContainerFrame::GetPseudoElement(aType); | |
| 142 } |
