layout/forms/nsColorControlFrame.cpp@97036ab72558 (annotated)
layout/forms/nsColorControlFrame.cpp
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "nsColorControlFrame.h" |
| michael@0 | 7 | |
| michael@0 | 8 | #include "nsContentCreatorFunctions.h" |
| michael@0 | 9 | #include "nsContentList.h" |
| michael@0 | 10 | #include "nsContentUtils.h" |
| michael@0 | 11 | #include "nsFormControlFrame.h" |
| michael@0 | 12 | #include "nsGkAtoms.h" |
| michael@0 | 13 | #include "nsIDOMHTMLInputElement.h" |
| michael@0 | 14 | #include "nsIDOMNode.h" |
| michael@0 | 15 | #include "nsIFormControl.h" |
| michael@0 | 16 | #include "nsStyleSet.h" |
| michael@0 | 17 | |
| michael@0 | 18 | using mozilla::dom::Element; |
| michael@0 | 19 | |
| michael@0 | 20 | nsColorControlFrame::nsColorControlFrame(nsStyleContext* aContext): |
| michael@0 | 21 | nsColorControlFrameSuper(aContext) |
| michael@0 | 22 | { |
| michael@0 | 23 | } |
| michael@0 | 24 | |
| michael@0 | 25 | nsIFrame* |
| michael@0 | 26 | NS_NewColorControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) |
| michael@0 | 27 | { |
| michael@0 | 28 | return new (aPresShell) nsColorControlFrame(aContext); |
| michael@0 | 29 | } |
| michael@0 | 30 | |
| michael@0 | 31 | NS_IMPL_FRAMEARENA_HELPERS(nsColorControlFrame) |
| michael@0 | 32 | |
| michael@0 | 33 | NS_QUERYFRAME_HEAD(nsColorControlFrame) |
| michael@0 | 34 | NS_QUERYFRAME_ENTRY(nsColorControlFrame) |
| michael@0 | 35 | NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator) |
| michael@0 | 36 | NS_QUERYFRAME_TAIL_INHERITING(nsColorControlFrameSuper) |
| michael@0 | 37 | |
| michael@0 | 38 | |
| michael@0 | 39 | void nsColorControlFrame::DestroyFrom(nsIFrame* aDestructRoot) |
| michael@0 | 40 | { |
| michael@0 | 41 | nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false); |
| michael@0 | 42 | nsContentUtils::DestroyAnonymousContent(&mColorContent); |
| michael@0 | 43 | nsColorControlFrameSuper::DestroyFrom(aDestructRoot); |
| michael@0 | 44 | } |
| michael@0 | 45 | |
| michael@0 | 46 | nsIAtom* |
| michael@0 | 47 | nsColorControlFrame::GetType() const |
| michael@0 | 48 | { |
| michael@0 | 49 | return nsGkAtoms::colorControlFrame; |
| michael@0 | 50 | } |
| michael@0 | 51 | |
| michael@0 | 52 | #ifdef DEBUG_FRAME_DUMP |
| michael@0 | 53 | nsresult |
| michael@0 | 54 | nsColorControlFrame::GetFrameName(nsAString& aResult) const |
| michael@0 | 55 | { |
| michael@0 | 56 | return MakeFrameName(NS_LITERAL_STRING("ColorControl"), aResult); |
| michael@0 | 57 | } |
| michael@0 | 58 | #endif |
| michael@0 | 59 | |
| michael@0 | 60 | // Create the color area for the button. |
| michael@0 | 61 | // The frame will be generated by the frame constructor. |
| michael@0 | 62 | nsresult |
| michael@0 | 63 | nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements) |
| michael@0 | 64 | { |
| michael@0 | 65 | nsCOMPtr<nsIDocument> doc = mContent->GetCurrentDoc(); |
| michael@0 | 66 | mColorContent = doc->CreateHTMLElement(nsGkAtoms::div); |
| michael@0 | 67 | |
| michael@0 | 68 | // Mark the element to be native anonymous before setting any attributes. |
| michael@0 | 69 | mColorContent->SetIsNativeAnonymousRoot(); |
| michael@0 | 70 | |
| michael@0 | 71 | nsresult rv = UpdateColor(); |
| michael@0 | 72 | NS_ENSURE_SUCCESS(rv, rv); |
| michael@0 | 73 | |
| michael@0 | 74 | nsCSSPseudoElements::Type pseudoType = nsCSSPseudoElements::ePseudo_mozColorSwatch; |
| michael@0 | 75 | nsRefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()-> |
| michael@0 | 76 | ResolvePseudoElementStyle(mContent->AsElement(), pseudoType, |
| michael@0 | 77 | StyleContext(), mColorContent->AsElement()); |
| michael@0 | 78 | if (!aElements.AppendElement(ContentInfo(mColorContent, newStyleContext))) { |
| michael@0 | 79 | return NS_ERROR_OUT_OF_MEMORY; |
| michael@0 | 80 | } |
| michael@0 | 81 | |
| michael@0 | 82 | return NS_OK; |
| michael@0 | 83 | } |
| michael@0 | 84 | |
| michael@0 | 85 | void |
| michael@0 | 86 | nsColorControlFrame::AppendAnonymousContentTo(nsBaseContentList& aElements, |
| michael@0 | 87 | uint32_t aFilter) |
| michael@0 | 88 | { |
| michael@0 | 89 | aElements.MaybeAppendElement(mColorContent); |
| michael@0 | 90 | } |
| michael@0 | 91 | |
| michael@0 | 92 | nsresult |
| michael@0 | 93 | nsColorControlFrame::UpdateColor() |
| michael@0 | 94 | { |
| michael@0 | 95 | // Get the color from the "value" property of our content; it will return the |
| michael@0 | 96 | // default color (through the sanitization algorithm) if there is none. |
| michael@0 | 97 | nsAutoString color; |
| michael@0 | 98 | nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent); |
| michael@0 | 99 | elt->GetValue(color); |
| michael@0 | 100 | MOZ_ASSERT(!color.IsEmpty(), |
| michael@0 | 101 | "Content node's GetValue() should return a valid color string " |
| michael@0 | 102 | "(the default color, in case no valid color is set)"); |
| michael@0 | 103 | |
| michael@0 | 104 | // Set the background-color style property of the swatch element to this color |
| michael@0 | 105 | return mColorContent->SetAttr(kNameSpaceID_None, nsGkAtoms::style, |
| michael@0 | 106 | NS_LITERAL_STRING("background-color:") + color, true); |
| michael@0 | 107 | } |
| michael@0 | 108 | |
| michael@0 | 109 | nsresult |
| michael@0 | 110 | nsColorControlFrame::AttributeChanged(int32_t aNameSpaceID, |
| michael@0 | 111 | nsIAtom* aAttribute, |
| michael@0 | 112 | int32_t aModType) |
| michael@0 | 113 | { |
| michael@0 | 114 | NS_ASSERTION(mColorContent, "The color div must exist"); |
| michael@0 | 115 | |
| michael@0 | 116 | // If the value attribute is set, update the color box, but only if we're |
| michael@0 | 117 | // still a color control, which might not be the case if the type attribute |
| michael@0 | 118 | // was removed/changed. |
| michael@0 | 119 | nsCOMPtr<nsIFormControl> fctrl = do_QueryInterface(GetContent()); |
| michael@0 | 120 | if (fctrl->GetType() == NS_FORM_INPUT_COLOR && |
| michael@0 | 121 | aNameSpaceID == kNameSpaceID_None && nsGkAtoms::value == aAttribute) { |
| michael@0 | 122 | UpdateColor(); |
| michael@0 | 123 | } |
| michael@0 | 124 | return nsColorControlFrameSuper::AttributeChanged(aNameSpaceID, aAttribute, |
| michael@0 | 125 | aModType); |
| michael@0 | 126 | } |
| michael@0 | 127 | |
| michael@0 | 128 | nsIFrame* |
| michael@0 | 129 | nsColorControlFrame::GetContentInsertionFrame() |
| michael@0 | 130 | { |
| michael@0 | 131 | return this; |
| michael@0 | 132 | } |
| michael@0 | 133 | |
| michael@0 | 134 | Element* |
| michael@0 | 135 | nsColorControlFrame::GetPseudoElement(nsCSSPseudoElements::Type aType) |
| michael@0 | 136 | { |
| michael@0 | 137 | if (aType == nsCSSPseudoElements::ePseudo_mozColorSwatch) { |
| michael@0 | 138 | return mColorContent; |
| michael@0 | 139 | } |
| michael@0 | 140 | |
| michael@0 | 141 | return nsContainerFrame::GetPseudoElement(aType); |
| michael@0 | 142 | } |
