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accessible/src/atk/nsMaiInterfaceDocument.cpp@97036ab72558 (annotated)

accessible/src/atk/nsMaiInterfaceDocument.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	/* vim: set ts=2 et sw=2 tw=80: */
michael@0	3	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	5	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#include "InterfaceInitFuncs.h"
michael@0	8
michael@0	9	#include "Accessible-inl.h"
michael@0	10	#include "AccessibleWrap.h"
michael@0	11	#include "DocAccessible.h"
michael@0	12	#include "nsMai.h"
michael@0	13	#include "mozilla/Likely.h"
michael@0	14
michael@0	15	using namespace mozilla::a11y;
michael@0	16
michael@0	17	static const char* const kDocTypeName = "W3C-doctype";
michael@0	18	static const char* const kDocUrlName = "DocURL";
michael@0	19	static const char* const kMimeTypeName = "MimeType";
michael@0	20
michael@0	21	// below functions are vfuncs on an ATK interface so they need to be C call
michael@0	22	extern "C" {
michael@0	23
michael@0	24	static const gchar* getDocumentLocaleCB(AtkDocument* aDocument);
michael@0	25	static AtkAttributeSet* getDocumentAttributesCB(AtkDocument* aDocument);
michael@0	26	static const gchar* getDocumentAttributeValueCB(AtkDocument* aDocument,
michael@0	27	const gchar* aAttrName);
michael@0	28
michael@0	29	void
michael@0	30	documentInterfaceInitCB(AtkDocumentIface *aIface)
michael@0	31	{
michael@0	32	NS_ASSERTION(aIface, "Invalid Interface");
michael@0	33	if(MOZ_UNLIKELY(!aIface))
michael@0	34	return;
michael@0	35
michael@0	36	/*
michael@0	37	* We don't support get_document or set_attribute right now.
michael@0	38	* get_document_type is deprecated, we return DocType in
michael@0	39	* get_document_attribute_value and get_document_attributes instead.
michael@0	40	*/
michael@0	41	aIface->get_document_attributes = getDocumentAttributesCB;
michael@0	42	aIface->get_document_attribute_value = getDocumentAttributeValueCB;
michael@0	43	aIface->get_document_locale = getDocumentLocaleCB;
michael@0	44	}
michael@0	45
michael@0	46	const gchar *
michael@0	47	getDocumentLocaleCB(AtkDocument *aDocument)
michael@0	48	{
michael@0	49	AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
michael@0	50	if (!accWrap)
michael@0	51	return nullptr;
michael@0	52
michael@0	53	nsAutoString locale;
michael@0	54	accWrap->Language(locale);
michael@0	55	return locale.IsEmpty() ? nullptr : AccessibleWrap::ReturnString(locale);
michael@0	56	}
michael@0	57
michael@0	58	static inline GSList *
michael@0	59	prependToList(GSList *aList, const char *const aName, const nsAutoString &aValue)
michael@0	60	{
michael@0	61	if (aValue.IsEmpty())
michael@0	62	return aList;
michael@0	63
michael@0	64	// libspi will free these
michael@0	65	AtkAttribute *atkAttr = (AtkAttribute *)g_malloc(sizeof(AtkAttribute));
michael@0	66	atkAttr->name = g_strdup(aName);
michael@0	67	atkAttr->value = g_strdup(NS_ConvertUTF16toUTF8(aValue).get());
michael@0	68	return g_slist_prepend(aList, atkAttr);
michael@0	69	}
michael@0	70
michael@0	71	AtkAttributeSet *
michael@0	72	getDocumentAttributesCB(AtkDocument *aDocument)
michael@0	73	{
michael@0	74	AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
michael@0	75	if (!accWrap || !accWrap->IsDoc())
michael@0	76	return nullptr;
michael@0	77
michael@0	78	// according to atkobject.h, AtkAttributeSet is a GSList
michael@0	79	GSList* attributes = nullptr;
michael@0	80	DocAccessible* document = accWrap->AsDoc();
michael@0	81	nsAutoString aURL;
michael@0	82	nsresult rv = document->GetURL(aURL);
michael@0	83	if (NS_SUCCEEDED(rv))
michael@0	84	attributes = prependToList(attributes, kDocUrlName, aURL);
michael@0	85
michael@0	86	nsAutoString aW3CDocType;
michael@0	87	rv = document->GetDocType(aW3CDocType);
michael@0	88	if (NS_SUCCEEDED(rv))
michael@0	89	attributes = prependToList(attributes, kDocTypeName, aW3CDocType);
michael@0	90
michael@0	91	nsAutoString aMimeType;
michael@0	92	rv = document->GetMimeType(aMimeType);
michael@0	93	if (NS_SUCCEEDED(rv))
michael@0	94	attributes = prependToList(attributes, kMimeTypeName, aMimeType);
michael@0	95
michael@0	96	return attributes;
michael@0	97	}
michael@0	98
michael@0	99	const gchar *
michael@0	100	getDocumentAttributeValueCB(AtkDocument *aDocument,
michael@0	101	const gchar *aAttrName)
michael@0	102	{
michael@0	103	AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
michael@0	104	if (!accWrap || !accWrap->IsDoc())
michael@0	105	return nullptr;
michael@0	106
michael@0	107	DocAccessible* document = accWrap->AsDoc();
michael@0	108	nsresult rv;
michael@0	109	nsAutoString attrValue;
michael@0	110	if (!strcasecmp(aAttrName, kDocTypeName))
michael@0	111	rv = document->GetDocType(attrValue);
michael@0	112	else if (!strcasecmp(aAttrName, kDocUrlName))
michael@0	113	rv = document->GetURL(attrValue);
michael@0	114	else if (!strcasecmp(aAttrName, kMimeTypeName))
michael@0	115	rv = document->GetMimeType(attrValue);
michael@0	116	else
michael@0	117	return nullptr;
michael@0	118
michael@0	119	NS_ENSURE_SUCCESS(rv, nullptr);
michael@0	120	return attrValue.IsEmpty() ? nullptr : AccessibleWrap::ReturnString(attrValue);
michael@0	121	}
michael@0	122	}