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accessible/src/xpcom/xpcAccessibleSelectable.cpp@97036ab72558 (annotated)

accessible/src/xpcom/xpcAccessibleSelectable.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 file,
michael@0	5	* You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#include "xpcAccessibleSelectable.h"
michael@0	8
michael@0	9	#include "Accessible-inl.h"
michael@0	10
michael@0	11	using namespace mozilla::a11y;
michael@0	12
michael@0	13	NS_IMETHODIMP
michael@0	14	xpcAccessibleSelectable::GetSelectedItems(nsIArray** aSelectedItems)
michael@0	15	{
michael@0	16	NS_ENSURE_ARG_POINTER(aSelectedItems);
michael@0	17	*aSelectedItems = nullptr;
michael@0	18
michael@0	19	Accessible* acc = static_cast<Accessible*>(this);
michael@0	20	if (acc->IsDefunct())
michael@0	21	return NS_ERROR_FAILURE;
michael@0	22	NS_PRECONDITION(acc->IsSelect(), "Called on non selectable widget!");
michael@0	23
michael@0	24	nsCOMPtr<nsIArray> items = acc->SelectedItems();
michael@0	25	if (items) {
michael@0	26	uint32_t length = 0;
michael@0	27	items->GetLength(&length);
michael@0	28	if (length)
michael@0	29	items.swap(*aSelectedItems);
michael@0	30	}
michael@0	31
michael@0	32	return NS_OK;
michael@0	33	}
michael@0	34
michael@0	35	NS_IMETHODIMP
michael@0	36	xpcAccessibleSelectable::GetSelectedItemCount(uint32_t* aSelectionCount)
michael@0	37	{
michael@0	38	NS_ENSURE_ARG_POINTER(aSelectionCount);
michael@0	39	*aSelectionCount = 0;
michael@0	40
michael@0	41	Accessible* acc = static_cast<Accessible*>(this);
michael@0	42	if (acc->IsDefunct())
michael@0	43	return NS_ERROR_FAILURE;
michael@0	44	NS_PRECONDITION(acc->IsSelect(), "Called on non selectable widget!");
michael@0	45
michael@0	46	*aSelectionCount = acc->SelectedItemCount();
michael@0	47	return NS_OK;
michael@0	48	}
michael@0	49
michael@0	50	NS_IMETHODIMP
michael@0	51	xpcAccessibleSelectable::GetSelectedItemAt(uint32_t aIndex,
michael@0	52	nsIAccessible** aSelected)
michael@0	53	{
michael@0	54	NS_ENSURE_ARG_POINTER(aSelected);
michael@0	55	*aSelected = nullptr;
michael@0	56
michael@0	57	Accessible* acc = static_cast<Accessible*>(this);
michael@0	58	if (acc->IsDefunct())
michael@0	59	return NS_ERROR_FAILURE;
michael@0	60	NS_PRECONDITION(acc->IsSelect(), "Called on non selectable widget!");
michael@0	61
michael@0	62	*aSelected = acc->GetSelectedItem(aIndex);
michael@0	63	if (*aSelected) {
michael@0	64	NS_ADDREF(*aSelected);
michael@0	65	return NS_OK;
michael@0	66	}
michael@0	67
michael@0	68	return NS_ERROR_INVALID_ARG;
michael@0	69	}
michael@0	70
michael@0	71	NS_IMETHODIMP
michael@0	72	xpcAccessibleSelectable::ScriptableIsItemSelected(uint32_t aIndex,
michael@0	73	bool* aIsSelected)
michael@0	74	{
michael@0	75	NS_ENSURE_ARG_POINTER(aIsSelected);
michael@0	76	*aIsSelected = false;
michael@0	77
michael@0	78	Accessible* acc = static_cast<Accessible*>(this);
michael@0	79	if (acc->IsDefunct())
michael@0	80	return NS_ERROR_FAILURE;
michael@0	81	NS_PRECONDITION(acc->IsSelect(), "Called on non selectable widget!");
michael@0	82
michael@0	83	*aIsSelected = acc->IsItemSelected(aIndex);
michael@0	84	return NS_OK;
michael@0	85	}
michael@0	86
michael@0	87	NS_IMETHODIMP
michael@0	88	xpcAccessibleSelectable::ScriptableAddItemToSelection(uint32_t aIndex)
michael@0	89	{
michael@0	90	Accessible* acc = static_cast<Accessible*>(this);
michael@0	91	if (acc->IsDefunct())
michael@0	92	return NS_ERROR_FAILURE;
michael@0	93	NS_PRECONDITION(acc->IsSelect(), "Called on non selectable widget!");
michael@0	94
michael@0	95	return acc->AddItemToSelection(aIndex) ? NS_OK : NS_ERROR_INVALID_ARG;
michael@0	96	}
michael@0	97
michael@0	98	NS_IMETHODIMP
michael@0	99	xpcAccessibleSelectable::ScriptableRemoveItemFromSelection(uint32_t aIndex)
michael@0	100	{
michael@0	101	Accessible* acc = static_cast<Accessible*>(this);
michael@0	102	if (acc->IsDefunct())
michael@0	103	return NS_ERROR_FAILURE;
michael@0	104	NS_PRECONDITION(acc->IsSelect(), "Called on non selectable widget!");
michael@0	105
michael@0	106	return acc->RemoveItemFromSelection(aIndex) ? NS_OK : NS_ERROR_INVALID_ARG;
michael@0	107	}
michael@0	108
michael@0	109	NS_IMETHODIMP
michael@0	110	xpcAccessibleSelectable::ScriptableSelectAll(bool* aIsMultiSelect)
michael@0	111	{
michael@0	112	NS_ENSURE_ARG_POINTER(aIsMultiSelect);
michael@0	113	*aIsMultiSelect = false;
michael@0	114
michael@0	115	Accessible* acc = static_cast<Accessible*>(this);
michael@0	116	if (acc->IsDefunct())
michael@0	117	return NS_ERROR_FAILURE;
michael@0	118	NS_PRECONDITION(acc->IsSelect(), "Called on non selectable widget!");
michael@0	119
michael@0	120	*aIsMultiSelect = acc->SelectAll();
michael@0	121	return NS_OK;
michael@0	122	}
michael@0	123
michael@0	124	NS_IMETHODIMP
michael@0	125	xpcAccessibleSelectable::ScriptableUnselectAll()
michael@0	126	{
michael@0	127	Accessible* acc = static_cast<Accessible*>(this);
michael@0	128	if (acc->IsDefunct())
michael@0	129	return NS_ERROR_FAILURE;
michael@0	130	NS_PRECONDITION(acc->IsSelect(), "Called on non selectable widget!");
michael@0	131
michael@0	132	acc->UnselectAll();
michael@0	133	return NS_OK;
michael@0	134	}