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-rw-r--r--accessible/android/Platform.cpp234
1 files changed, 234 insertions, 0 deletions
diff --git a/accessible/android/Platform.cpp b/accessible/android/Platform.cpp
new file mode 100644
index 0000000000..9bde1cbc70
--- /dev/null
+++ b/accessible/android/Platform.cpp
@@ -0,0 +1,234 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "Platform.h"
+#include "DocAccessibleWrap.h"
+#include "SessionAccessibility.h"
+#include "mozilla/a11y/RemoteAccessible.h"
+#include "mozilla/Components.h"
+#include "nsIAccessibleEvent.h"
+#include "nsIAccessiblePivot.h"
+#include "nsIStringBundle.h"
+
+#define ROLE_STRINGS_URL "chrome://global/locale/AccessFu.properties"
+
+using namespace mozilla;
+using namespace mozilla::a11y;
+
+static nsTHashMap<nsStringHashKey, nsString> sLocalizedStrings;
+
+void a11y::PlatformInit() {
+ nsresult rv = NS_OK;
+ nsCOMPtr<nsIStringBundleService> stringBundleService =
+ components::StringBundle::Service();
+ if (!stringBundleService) return;
+
+ nsCOMPtr<nsIStringBundle> stringBundle;
+ nsCOMPtr<nsIStringBundleService> sbs = components::StringBundle::Service();
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to get string bundle service");
+ return;
+ }
+
+ rv = sbs->CreateBundle(ROLE_STRINGS_URL, getter_AddRefs(stringBundle));
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to get string bundle");
+ return;
+ }
+
+ nsString localizedStr;
+ // Preload the state required localized string.
+ rv = stringBundle->GetStringFromName("stateRequired", localizedStr);
+ if (NS_SUCCEEDED(rv)) {
+ sLocalizedStrings.InsertOrUpdate(u"stateRequired"_ns, localizedStr);
+ }
+
+ // Preload heading level localized descriptions 1 thru 6.
+ for (int32_t level = 1; level <= 6; level++) {
+ nsAutoString token;
+ token.AppendPrintf("heading-%d", level);
+
+ nsAutoString formatString;
+ formatString.AppendInt(level);
+ AutoTArray<nsString, 1> formatParams;
+ formatParams.AppendElement(formatString);
+ rv = stringBundle->FormatStringFromName("headingLevel", formatParams,
+ localizedStr);
+ if (NS_SUCCEEDED(rv)) {
+ sLocalizedStrings.InsertOrUpdate(token, localizedStr);
+ }
+ }
+
+ // Preload any roles that have localized versions
+#define ROLE(geckoRole, stringRole, ariaRole, atkRole, macRole, macSubrole, \
+ msaaRole, ia2Role, androidClass, nameRule) \
+ rv = stringBundle->GetStringFromName(stringRole, localizedStr); \
+ if (NS_SUCCEEDED(rv)) { \
+ sLocalizedStrings.InsertOrUpdate(u##stringRole##_ns, localizedStr); \
+ }
+
+#include "RoleMap.h"
+#undef ROLE
+}
+
+void a11y::PlatformShutdown() { sLocalizedStrings.Clear(); }
+
+void a11y::ProxyCreated(RemoteAccessible* aProxy) {
+ SessionAccessibility::RegisterAccessible(aProxy);
+}
+
+void a11y::ProxyDestroyed(RemoteAccessible* aProxy) {
+ SessionAccessibility::UnregisterAccessible(aProxy);
+}
+
+void a11y::ProxyEvent(RemoteAccessible* aTarget, uint32_t aEventType) {
+ RefPtr<SessionAccessibility> sessionAcc =
+ SessionAccessibility::GetInstanceFor(aTarget);
+ if (!sessionAcc) {
+ return;
+ }
+
+ switch (aEventType) {
+ case nsIAccessibleEvent::EVENT_FOCUS:
+ sessionAcc->SendFocusEvent(aTarget);
+ break;
+ case nsIAccessibleEvent::EVENT_REORDER:
+ sessionAcc->SendWindowContentChangedEvent();
+ break;
+ default:
+ break;
+ }
+}
+
+void a11y::ProxyStateChangeEvent(RemoteAccessible* aTarget, uint64_t aState,
+ bool aEnabled) {
+ RefPtr<SessionAccessibility> sessionAcc =
+ SessionAccessibility::GetInstanceFor(aTarget);
+
+ if (!sessionAcc) {
+ return;
+ }
+
+ if (aState & states::CHECKED) {
+ sessionAcc->SendClickedEvent(
+ aTarget, java::SessionAccessibility::FLAG_CHECKABLE |
+ (aEnabled ? java::SessionAccessibility::FLAG_CHECKED : 0));
+ }
+
+ if (aState & states::EXPANDED) {
+ sessionAcc->SendClickedEvent(
+ aTarget,
+ java::SessionAccessibility::FLAG_EXPANDABLE |
+ (aEnabled ? java::SessionAccessibility::FLAG_EXPANDED : 0));
+ }
+
+ if (aState & states::SELECTED) {
+ sessionAcc->SendSelectedEvent(aTarget, aEnabled);
+ }
+
+ if (aState & states::BUSY) {
+ sessionAcc->SendWindowStateChangedEvent(aTarget);
+ }
+}
+
+void a11y::ProxyCaretMoveEvent(RemoteAccessible* aTarget, int32_t aOffset,
+ bool aIsSelectionCollapsed,
+ int32_t aGranularity) {
+ RefPtr<SessionAccessibility> sessionAcc =
+ SessionAccessibility::GetInstanceFor(aTarget);
+
+ if (sessionAcc) {
+ sessionAcc->SendTextSelectionChangedEvent(aTarget, aOffset);
+ }
+}
+
+void a11y::ProxyTextChangeEvent(RemoteAccessible* aTarget,
+ const nsAString& aStr, int32_t aStart,
+ uint32_t aLen, bool aIsInsert, bool aFromUser) {
+ RefPtr<SessionAccessibility> sessionAcc =
+ SessionAccessibility::GetInstanceFor(aTarget);
+
+ if (sessionAcc) {
+ sessionAcc->SendTextChangedEvent(aTarget, aStr, aStart, aLen, aIsInsert,
+ aFromUser);
+ }
+}
+
+void a11y::ProxyShowHideEvent(RemoteAccessible* aTarget,
+ RemoteAccessible* aParent, bool aInsert,
+ bool aFromUser) {
+ // We rely on the window content changed events to be dispatched
+ // after the viewport cache is refreshed.
+}
+
+void a11y::ProxySelectionEvent(RemoteAccessible*, RemoteAccessible*, uint32_t) {
+}
+
+void a11y::ProxyVirtualCursorChangeEvent(
+ RemoteAccessible* aTarget, RemoteAccessible* aOldPosition,
+ int32_t aOldStartOffset, int32_t aOldEndOffset,
+ RemoteAccessible* aNewPosition, int32_t aNewStartOffset,
+ int32_t aNewEndOffset, int16_t aReason, int16_t aBoundaryType,
+ bool aFromUser) {
+ if (!aNewPosition || !aFromUser) {
+ return;
+ }
+
+ RefPtr<SessionAccessibility> sessionAcc =
+ SessionAccessibility::GetInstanceFor(aTarget);
+
+ if (!sessionAcc) {
+ return;
+ }
+
+ if (aReason == nsIAccessiblePivot::REASON_POINT) {
+ sessionAcc->SendHoverEnterEvent(aNewPosition);
+ } else if (aBoundaryType == nsIAccessiblePivot::NO_BOUNDARY) {
+ sessionAcc->SendAccessibilityFocusedEvent(aNewPosition);
+ }
+
+ if (aBoundaryType != nsIAccessiblePivot::NO_BOUNDARY) {
+ sessionAcc->SendTextTraversedEvent(aNewPosition, aNewStartOffset,
+ aNewEndOffset);
+ }
+}
+
+void a11y::ProxyScrollingEvent(RemoteAccessible* aTarget, uint32_t aEventType,
+ uint32_t aScrollX, uint32_t aScrollY,
+ uint32_t aMaxScrollX, uint32_t aMaxScrollY) {
+ if (aEventType == nsIAccessibleEvent::EVENT_SCROLLING) {
+ RefPtr<SessionAccessibility> sessionAcc =
+ SessionAccessibility::GetInstanceFor(aTarget);
+
+ if (sessionAcc) {
+ sessionAcc->SendScrollingEvent(aTarget, aScrollX, aScrollY, aMaxScrollX,
+ aMaxScrollY);
+ }
+ }
+}
+
+void a11y::ProxyAnnouncementEvent(RemoteAccessible* aTarget,
+ const nsAString& aAnnouncement,
+ uint16_t aPriority) {
+ RefPtr<SessionAccessibility> sessionAcc =
+ SessionAccessibility::GetInstanceFor(aTarget);
+
+ if (sessionAcc) {
+ sessionAcc->SendAnnouncementEvent(aTarget, aAnnouncement, aPriority);
+ }
+}
+
+bool a11y::LocalizeString(const nsAString& aToken, nsAString& aLocalized) {
+ MOZ_ASSERT(XRE_IsParentProcess());
+
+ auto str = sLocalizedStrings.Lookup(aToken);
+ if (str) {
+ aLocalized.Assign(*str);
+ } else {
+ }
+
+ return !!str;
+}