зеркало из https://github.com/mozilla/gecko-dev.git
139 строки
3.8 KiB
C++
139 строки
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=2:tabstop=2:
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ia2AccessibleAction.h"
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#include "AccessibleAction_i.c"
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#include "AccessibleWrap.h"
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#include "IUnknownImpl.h"
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using namespace mozilla::a11y;
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// IUnknown
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STDMETHODIMP
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ia2AccessibleAction::QueryInterface(REFIID iid, void** ppv) {
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if (!ppv) return E_INVALIDARG;
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*ppv = nullptr;
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if (IID_IAccessibleAction == iid &&
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!static_cast<AccessibleWrap*>(this)->IsProxy()) {
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*ppv = static_cast<IAccessibleAction*>(this);
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(reinterpret_cast<IUnknown*>(*ppv))->AddRef();
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return S_OK;
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}
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return E_NOINTERFACE;
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}
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// IAccessibleAction
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STDMETHODIMP
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ia2AccessibleAction::nActions(long* aActionCount) {
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if (!aActionCount) return E_INVALIDARG;
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*aActionCount = 0;
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AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
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if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;
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*aActionCount = acc->ActionCount();
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return S_OK;
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}
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STDMETHODIMP
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ia2AccessibleAction::doAction(long aActionIndex) {
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AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
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if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;
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uint8_t index = static_cast<uint8_t>(aActionIndex);
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return acc->DoAction(index) ? S_OK : E_INVALIDARG;
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}
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STDMETHODIMP
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ia2AccessibleAction::get_description(long aActionIndex, BSTR* aDescription) {
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if (!aDescription) return E_INVALIDARG;
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*aDescription = nullptr;
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AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
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if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;
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nsAutoString description;
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uint8_t index = static_cast<uint8_t>(aActionIndex);
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acc->ActionDescriptionAt(index, description);
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if (description.IsEmpty()) return S_FALSE;
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*aDescription = ::SysAllocStringLen(description.get(), description.Length());
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return *aDescription ? S_OK : E_OUTOFMEMORY;
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}
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STDMETHODIMP
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ia2AccessibleAction::get_keyBinding(long aActionIndex, long aNumMaxBinding,
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BSTR** aKeyBinding, long* aNumBinding) {
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if (!aKeyBinding) return E_INVALIDARG;
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*aKeyBinding = nullptr;
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if (!aNumBinding) return E_INVALIDARG;
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*aNumBinding = 0;
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if (aActionIndex != 0 || aNumMaxBinding < 1) return E_INVALIDARG;
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AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
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if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;
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// Expose keyboard shortcut if it's not exposed via MSAA keyboard shortcut.
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KeyBinding keyBinding = acc->AccessKey();
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if (keyBinding.IsEmpty()) return S_FALSE;
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keyBinding = acc->KeyboardShortcut();
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if (keyBinding.IsEmpty()) return S_FALSE;
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nsAutoString keyStr;
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keyBinding.ToString(keyStr);
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*aKeyBinding = static_cast<BSTR*>(::CoTaskMemAlloc(sizeof(BSTR*)));
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if (!*aKeyBinding) return E_OUTOFMEMORY;
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*(aKeyBinding[0]) = ::SysAllocStringLen(keyStr.get(), keyStr.Length());
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if (!*(aKeyBinding[0])) {
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::CoTaskMemFree(*aKeyBinding);
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return E_OUTOFMEMORY;
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}
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*aNumBinding = 1;
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return S_OK;
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}
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STDMETHODIMP
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ia2AccessibleAction::get_name(long aActionIndex, BSTR* aName) {
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if (!aName) return E_INVALIDARG;
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*aName = nullptr;
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AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
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if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;
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nsAutoString name;
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uint8_t index = static_cast<uint8_t>(aActionIndex);
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acc->ActionNameAt(index, name);
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if (name.IsEmpty()) return E_INVALIDARG;
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*aName = ::SysAllocStringLen(name.get(), name.Length());
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return *aName ? S_OK : E_OUTOFMEMORY;
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}
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STDMETHODIMP
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ia2AccessibleAction::get_localizedName(long aActionIndex,
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BSTR* aLocalizedName) {
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if (!aLocalizedName) return E_INVALIDARG;
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*aLocalizedName = nullptr;
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return E_NOTIMPL;
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}
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