The Tor Browser / file comparison
comparison: layout/xul/nsXULLabelFrame.cpp
layout/xul/nsXULLabelFrame.cpp
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:49e84a1db63b |
|---|---|
| 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 /* derived class of nsBlockFrame used for xul:label elements */ | |
| 7 | |
| 8 #include "mozilla/EventStateManager.h" | |
| 9 #include "nsXULLabelFrame.h" | |
| 10 #include "nsHTMLParts.h" | |
| 11 #include "nsNameSpaceManager.h" | |
| 12 | |
| 13 using namespace mozilla; | |
| 14 | |
| 15 nsIFrame* | |
| 16 NS_NewXULLabelFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) | |
| 17 { | |
| 18 nsXULLabelFrame* it = new (aPresShell) nsXULLabelFrame(aContext); | |
| 19 | |
| 20 it->SetFlags(NS_BLOCK_FLOAT_MGR | NS_BLOCK_MARGIN_ROOT); | |
| 21 | |
| 22 return it; | |
| 23 } | |
| 24 | |
| 25 NS_IMPL_FRAMEARENA_HELPERS(nsXULLabelFrame) | |
| 26 | |
| 27 // If you make changes to this function, check its counterparts | |
| 28 // in nsBoxFrame and nsTextBoxFrame | |
| 29 nsresult | |
| 30 nsXULLabelFrame::RegUnregAccessKey(bool aDoReg) | |
| 31 { | |
| 32 // if we have no content, we can't do anything | |
| 33 if (!mContent) | |
| 34 return NS_ERROR_FAILURE; | |
| 35 | |
| 36 // To filter out <label>s without a control attribute. | |
| 37 // XXXjag a side-effect is that we filter out anonymous <label>s | |
| 38 // in e.g. <menu>, <menuitem>, <button>. These <label>s inherit | |
| 39 // |accesskey| and would otherwise register themselves, overwriting | |
| 40 // the content we really meant to be registered. | |
| 41 if (!mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::control)) | |
| 42 return NS_OK; | |
| 43 | |
| 44 nsAutoString accessKey; | |
| 45 mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey, accessKey); | |
| 46 | |
| 47 if (accessKey.IsEmpty()) | |
| 48 return NS_OK; | |
| 49 | |
| 50 // With a valid PresContext we can get the ESM | |
| 51 // and register the access key | |
| 52 EventStateManager* esm = PresContext()->EventStateManager(); | |
| 53 | |
| 54 uint32_t key = accessKey.First(); | |
| 55 if (aDoReg) | |
| 56 esm->RegisterAccessKey(mContent, key); | |
| 57 else | |
| 58 esm->UnregisterAccessKey(mContent, key); | |
| 59 | |
| 60 return NS_OK; | |
| 61 } | |
| 62 | |
| 63 ///////////////////////////////////////////////////////////////////////////// | |
| 64 // nsIFrame | |
| 65 | |
| 66 void | |
| 67 nsXULLabelFrame::Init(nsIContent* aContent, | |
| 68 nsIFrame* aParent, | |
| 69 nsIFrame* aPrevInFlow) | |
| 70 { | |
| 71 nsBlockFrame::Init(aContent, aParent, aPrevInFlow); | |
| 72 | |
| 73 // register access key | |
| 74 RegUnregAccessKey(true); | |
| 75 } | |
| 76 | |
| 77 void | |
| 78 nsXULLabelFrame::DestroyFrom(nsIFrame* aDestructRoot) | |
| 79 { | |
| 80 // unregister access key | |
| 81 RegUnregAccessKey(false); | |
| 82 nsBlockFrame::DestroyFrom(aDestructRoot); | |
| 83 } | |
| 84 | |
| 85 nsresult | |
| 86 nsXULLabelFrame::AttributeChanged(int32_t aNameSpaceID, | |
| 87 nsIAtom* aAttribute, | |
| 88 int32_t aModType) | |
| 89 { | |
| 90 nsresult rv = nsBlockFrame::AttributeChanged(aNameSpaceID, | |
| 91 aAttribute, aModType); | |
| 92 | |
| 93 // If the accesskey changed, register for the new value | |
| 94 // The old value has been unregistered in nsXULElement::SetAttr | |
| 95 if (aAttribute == nsGkAtoms::accesskey || aAttribute == nsGkAtoms::control) | |
| 96 RegUnregAccessKey(true); | |
| 97 | |
| 98 return rv; | |
| 99 } | |
| 100 | |
| 101 nsIAtom* | |
| 102 nsXULLabelFrame::GetType() const | |
| 103 { | |
| 104 return nsGkAtoms::XULLabelFrame; | |
| 105 } | |
| 106 | |
| 107 ///////////////////////////////////////////////////////////////////////////// | |
| 108 // Diagnostics | |
| 109 | |
| 110 #ifdef DEBUG_FRAME_DUMP | |
| 111 nsresult | |
| 112 nsXULLabelFrame::GetFrameName(nsAString& aResult) const | |
| 113 { | |
| 114 return MakeFrameName(NS_LITERAL_STRING("XULLabel"), aResult); | |
| 115 } | |
| 116 #endif |
