blob: 7fb132b5f617587242ae42d5c252d767bb4445cb [file] [log] [blame]
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/accessibility/web_contents_accessibility_android.h"
#include "base/android/jni_android.h"
#include "base/android/jni_array.h"
#include "base/android/jni_string.h"
#include "base/feature_list.h"
#include "base/macros.h"
#include "base/metrics/histogram_macros.h"
#include "content/browser/accessibility/browser_accessibility_android.h"
#include "content/browser/accessibility/browser_accessibility_manager_android.h"
#include "content/browser/accessibility/browser_accessibility_state_impl.h"
#include "content/browser/accessibility/one_shot_accessibility_tree_search.h"
#include "content/browser/android/render_widget_host_connector.h"
#include "content/browser/renderer_host/render_widget_host_view_android.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/common/content_features.h"
#include "content/public/common/use_zoom_for_dsf_policy.h"
#include "jni/WebContentsAccessibilityImpl_jni.h"
#include "ui/events/android/motion_event_android.h"
using base::android::AttachCurrentThread;
using base::android::JavaParamRef;
using base::android::ScopedJavaLocalRef;
namespace content {
namespace {
// IMPORTANT!
// These values are written to logs. Do not renumber or delete
// existing items; add new entries to the end of the list.
//
// Note: The string names for these enums must correspond with the names of
// constants from AccessibilityEvent and AccessibilityServiceInfo, defined
// below. For example, UMA_EVENT_ANNOUNCEMENT corresponds to
// ACCESSIBILITYEVENT_TYPE_ANNOUNCEMENT via the macro
// EVENT_TYPE_HISTOGRAM(event_type_mask, ANNOUNCEMENT).
enum {
UMA_CAPABILITY_CAN_CONTROL_MAGNIFICATION = 0,
UMA_CAPABILITY_CAN_PERFORM_GESTURES = 1,
UMA_CAPABILITY_CAN_REQUEST_ENHANCED_WEB_ACCESSIBILITY = 2,
UMA_CAPABILITY_CAN_REQUEST_FILTER_KEY_EVENTS = 3,
UMA_CAPABILITY_CAN_REQUEST_TOUCH_EXPLORATION = 4,
UMA_CAPABILITY_CAN_RETRIEVE_WINDOW_CONTENT = 5,
UMA_EVENT_ANNOUNCEMENT = 6,
UMA_EVENT_ASSIST_READING_CONTEXT = 7,
UMA_EVENT_GESTURE_DETECTION_END = 8,
UMA_EVENT_GESTURE_DETECTION_START = 9,
UMA_EVENT_NOTIFICATION_STATE_CHANGED = 10,
UMA_EVENT_TOUCH_EXPLORATION_GESTURE_END = 11,
UMA_EVENT_TOUCH_EXPLORATION_GESTURE_START = 12,
UMA_EVENT_TOUCH_INTERACTION_END = 13,
UMA_EVENT_TOUCH_INTERACTION_START = 14,
UMA_EVENT_VIEW_ACCESSIBILITY_FOCUSED = 15,
UMA_EVENT_VIEW_ACCESSIBILITY_FOCUS_CLEARED = 16,
UMA_EVENT_VIEW_CLICKED = 17,
UMA_EVENT_VIEW_CONTEXT_CLICKED = 18,
UMA_EVENT_VIEW_FOCUSED = 19,
UMA_EVENT_VIEW_HOVER_ENTER = 20,
UMA_EVENT_VIEW_HOVER_EXIT = 21,
UMA_EVENT_VIEW_LONG_CLICKED = 22,
UMA_EVENT_VIEW_SCROLLED = 23,
UMA_EVENT_VIEW_SELECTED = 24,
UMA_EVENT_VIEW_TEXT_CHANGED = 25,
UMA_EVENT_VIEW_TEXT_SELECTION_CHANGED = 26,
UMA_EVENT_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY = 27,
UMA_EVENT_WINDOWS_CHANGED = 28,
UMA_EVENT_WINDOW_CONTENT_CHANGED = 29,
UMA_EVENT_WINDOW_STATE_CHANGED = 30,
UMA_FEEDBACK_AUDIBLE = 31,
UMA_FEEDBACK_BRAILLE = 32,
UMA_FEEDBACK_GENERIC = 33,
UMA_FEEDBACK_HAPTIC = 34,
UMA_FEEDBACK_SPOKEN = 35,
UMA_FEEDBACK_VISUAL = 36,
UMA_FLAG_FORCE_DIRECT_BOOT_AWARE = 37,
UMA_FLAG_INCLUDE_NOT_IMPORTANT_VIEWS = 38,
UMA_FLAG_REPORT_VIEW_IDS = 39,
UMA_FLAG_REQUEST_ENHANCED_WEB_ACCESSIBILITY = 40,
UMA_FLAG_REQUEST_FILTER_KEY_EVENTS = 41,
UMA_FLAG_REQUEST_TOUCH_EXPLORATION_MODE = 42,
UMA_FLAG_RETRIEVE_INTERACTIVE_WINDOWS = 43,
// This must always be the last enum. It's okay for its value to
// increase, but none of the other enum values may change.
UMA_ACCESSIBILITYSERVICEINFO_MAX
};
// These are constants from
// android.view.accessibility.AccessibilityEvent in Java.
//
// If you add a new constant, add a new UMA enum above and add a line
// to CollectStats(), below.
enum {
ACCESSIBILITYEVENT_TYPE_VIEW_CLICKED = 0x00000001,
ACCESSIBILITYEVENT_TYPE_VIEW_LONG_CLICKED = 0x00000002,
ACCESSIBILITYEVENT_TYPE_VIEW_SELECTED = 0x00000004,
ACCESSIBILITYEVENT_TYPE_VIEW_FOCUSED = 0x00000008,
ACCESSIBILITYEVENT_TYPE_VIEW_TEXT_CHANGED = 0x00000010,
ACCESSIBILITYEVENT_TYPE_WINDOW_STATE_CHANGED = 0x00000020,
ACCESSIBILITYEVENT_TYPE_NOTIFICATION_STATE_CHANGED = 0x00000040,
ACCESSIBILITYEVENT_TYPE_VIEW_HOVER_ENTER = 0x00000080,
ACCESSIBILITYEVENT_TYPE_VIEW_HOVER_EXIT = 0x00000100,
ACCESSIBILITYEVENT_TYPE_TOUCH_EXPLORATION_GESTURE_START = 0x00000200,
ACCESSIBILITYEVENT_TYPE_TOUCH_EXPLORATION_GESTURE_END = 0x00000400,
ACCESSIBILITYEVENT_TYPE_WINDOW_CONTENT_CHANGED = 0x00000800,
ACCESSIBILITYEVENT_TYPE_VIEW_SCROLLED = 0x00001000,
ACCESSIBILITYEVENT_TYPE_VIEW_TEXT_SELECTION_CHANGED = 0x00002000,
ACCESSIBILITYEVENT_TYPE_ANNOUNCEMENT = 0x00004000,
ACCESSIBILITYEVENT_TYPE_VIEW_ACCESSIBILITY_FOCUSED = 0x00008000,
ACCESSIBILITYEVENT_TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED = 0x00010000,
ACCESSIBILITYEVENT_TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY =
0x00020000,
ACCESSIBILITYEVENT_TYPE_GESTURE_DETECTION_START = 0x00040000,
ACCESSIBILITYEVENT_TYPE_GESTURE_DETECTION_END = 0x00080000,
ACCESSIBILITYEVENT_TYPE_TOUCH_INTERACTION_START = 0x00100000,
ACCESSIBILITYEVENT_TYPE_TOUCH_INTERACTION_END = 0x00200000,
ACCESSIBILITYEVENT_TYPE_WINDOWS_CHANGED = 0x00400000,
ACCESSIBILITYEVENT_TYPE_VIEW_CONTEXT_CLICKED = 0x00800000,
ACCESSIBILITYEVENT_TYPE_ASSIST_READING_CONTEXT = 0x01000000,
};
// These are constants from
// android.accessibilityservice.AccessibilityServiceInfo in Java:
//
// If you add a new constant, add a new UMA enum above and add a line
// to CollectStats(), below.
enum {
ACCESSIBILITYSERVICEINFO_CAPABILITY_CAN_RETRIEVE_WINDOW_CONTENT = 0x00000001,
ACCESSIBILITYSERVICEINFO_CAPABILITY_CAN_REQUEST_TOUCH_EXPLORATION =
0x00000002,
ACCESSIBILITYSERVICEINFO_CAPABILITY_CAN_REQUEST_ENHANCED_WEB_ACCESSIBILITY =
0x00000004,
ACCESSIBILITYSERVICEINFO_CAPABILITY_CAN_REQUEST_FILTER_KEY_EVENTS =
0x00000008,
ACCESSIBILITYSERVICEINFO_CAPABILITY_CAN_CONTROL_MAGNIFICATION = 0x00000010,
ACCESSIBILITYSERVICEINFO_CAPABILITY_CAN_PERFORM_GESTURES = 0x00000020,
ACCESSIBILITYSERVICEINFO_FEEDBACK_SPOKEN = 0x0000001,
ACCESSIBILITYSERVICEINFO_FEEDBACK_HAPTIC = 0x0000002,
ACCESSIBILITYSERVICEINFO_FEEDBACK_AUDIBLE = 0x0000004,
ACCESSIBILITYSERVICEINFO_FEEDBACK_VISUAL = 0x0000008,
ACCESSIBILITYSERVICEINFO_FEEDBACK_GENERIC = 0x0000010,
ACCESSIBILITYSERVICEINFO_FEEDBACK_BRAILLE = 0x0000020,
ACCESSIBILITYSERVICEINFO_FLAG_INCLUDE_NOT_IMPORTANT_VIEWS = 0x0000002,
ACCESSIBILITYSERVICEINFO_FLAG_REQUEST_TOUCH_EXPLORATION_MODE = 0x0000004,
ACCESSIBILITYSERVICEINFO_FLAG_REQUEST_ENHANCED_WEB_ACCESSIBILITY = 0x00000008,
ACCESSIBILITYSERVICEINFO_FLAG_REPORT_VIEW_IDS = 0x00000010,
ACCESSIBILITYSERVICEINFO_FLAG_REQUEST_FILTER_KEY_EVENTS = 0x00000020,
ACCESSIBILITYSERVICEINFO_FLAG_RETRIEVE_INTERACTIVE_WINDOWS = 0x00000040,
ACCESSIBILITYSERVICEINFO_FLAG_FORCE_DIRECT_BOOT_AWARE = 0x00010000,
};
// These macros simplify recording a histogram based on information we get
// from an AccessibilityService. There are four bitmasks of information
// we get from each AccessibilityService, and for each possible bit mask
// corresponding to one flag, we want to check if that flag is set, and if
// so, record the corresponding histogram.
//
// Doing this with macros reduces the chance for human error by
// recording the wrong histogram for the wrong flag.
//
// These macros are used by CollectStats(), below.
#define EVENT_TYPE_HISTOGRAM(event_type_mask, event_type) \
if (event_type_mask & ACCESSIBILITYEVENT_TYPE_##event_type) \
UMA_HISTOGRAM_ENUMERATION("Accessibility.AndroidServiceInfo", \
UMA_EVENT_##event_type, \
UMA_ACCESSIBILITYSERVICEINFO_MAX)
#define FLAGS_HISTOGRAM(flags_mask, flag) \
if (flags_mask & ACCESSIBILITYSERVICEINFO_FLAG_##flag) \
UMA_HISTOGRAM_ENUMERATION("Accessibility.AndroidServiceInfo", \
UMA_FLAG_##flag, UMA_ACCESSIBILITYSERVICEINFO_MAX)
#define FEEDBACK_TYPE_HISTOGRAM(feedback_type_mask, feedback_type) \
if (feedback_type_mask & ACCESSIBILITYSERVICEINFO_FEEDBACK_##feedback_type) \
UMA_HISTOGRAM_ENUMERATION("Accessibility.AndroidServiceInfo", \
UMA_FEEDBACK_##feedback_type, \
UMA_ACCESSIBILITYSERVICEINFO_MAX)
#define CAPABILITY_TYPE_HISTOGRAM(capability_type_mask, capability_type) \
if (capability_type_mask & \
ACCESSIBILITYSERVICEINFO_CAPABILITY_##capability_type) \
UMA_HISTOGRAM_ENUMERATION("Accessibility.AndroidServiceInfo", \
UMA_CAPABILITY_##capability_type, \
UMA_ACCESSIBILITYSERVICEINFO_MAX)
using SearchKeyToPredicateMap =
std::unordered_map<base::string16, AccessibilityMatchPredicate>;
base::LazyInstance<SearchKeyToPredicateMap>::Leaky
g_search_key_to_predicate_map = LAZY_INSTANCE_INITIALIZER;
base::LazyInstance<base::string16>::Leaky g_all_search_keys =
LAZY_INSTANCE_INITIALIZER;
bool SectionPredicate(BrowserAccessibility* start, BrowserAccessibility* node) {
switch (node->GetRole()) {
case ax::mojom::Role::kArticle:
case ax::mojom::Role::kApplication:
case ax::mojom::Role::kBanner:
case ax::mojom::Role::kComplementary:
case ax::mojom::Role::kContentInfo:
case ax::mojom::Role::kHeading:
case ax::mojom::Role::kMain:
case ax::mojom::Role::kNavigation:
case ax::mojom::Role::kSearch:
case ax::mojom::Role::kRegion:
return true;
default:
return false;
}
}
bool AllInterestingNodesPredicate(BrowserAccessibility* start,
BrowserAccessibility* node) {
BrowserAccessibilityAndroid* android_node =
static_cast<BrowserAccessibilityAndroid*>(node);
return android_node->IsInterestingOnAndroid();
}
void AddToPredicateMap(const char* search_key_ascii,
AccessibilityMatchPredicate predicate) {
base::string16 search_key_utf16 = base::ASCIIToUTF16(search_key_ascii);
g_search_key_to_predicate_map.Get()[search_key_utf16] = predicate;
if (!g_all_search_keys.Get().empty())
g_all_search_keys.Get() += base::ASCIIToUTF16(",");
g_all_search_keys.Get() += search_key_utf16;
}
// These are special unofficial strings sent from TalkBack/BrailleBack
// to jump to certain categories of web elements.
void InitSearchKeyToPredicateMapIfNeeded() {
if (!g_search_key_to_predicate_map.Get().empty())
return;
AddToPredicateMap("ARTICLE", AccessibilityArticlePredicate);
AddToPredicateMap("BUTTON", AccessibilityButtonPredicate);
AddToPredicateMap("CHECKBOX", AccessibilityCheckboxPredicate);
AddToPredicateMap("COMBOBOX", AccessibilityComboboxPredicate);
AddToPredicateMap("CONTROL", AccessibilityControlPredicate);
AddToPredicateMap("FOCUSABLE", AccessibilityFocusablePredicate);
AddToPredicateMap("FRAME", AccessibilityFramePredicate);
AddToPredicateMap("GRAPHIC", AccessibilityGraphicPredicate);
AddToPredicateMap("H1", AccessibilityH1Predicate);
AddToPredicateMap("H2", AccessibilityH2Predicate);
AddToPredicateMap("H3", AccessibilityH3Predicate);
AddToPredicateMap("H4", AccessibilityH4Predicate);
AddToPredicateMap("H5", AccessibilityH5Predicate);
AddToPredicateMap("H6", AccessibilityH6Predicate);
AddToPredicateMap("HEADING", AccessibilityHeadingPredicate);
AddToPredicateMap("LANDMARK", AccessibilityLandmarkPredicate);
AddToPredicateMap("LINK", AccessibilityLinkPredicate);
AddToPredicateMap("LIST", AccessibilityListPredicate);
AddToPredicateMap("LIST_ITEM", AccessibilityListItemPredicate);
AddToPredicateMap("MAIN", AccessibilityMainPredicate);
AddToPredicateMap("MEDIA", AccessibilityMediaPredicate);
AddToPredicateMap("RADIO", AccessibilityRadioButtonPredicate);
AddToPredicateMap("SECTION", SectionPredicate);
AddToPredicateMap("TABLE", AccessibilityTablePredicate);
AddToPredicateMap("TEXT_FIELD", AccessibilityTextfieldPredicate);
AddToPredicateMap("UNVISITED_LINK", AccessibilityUnvisitedLinkPredicate);
AddToPredicateMap("VISITED_LINK", AccessibilityVisitedLinkPredicate);
}
AccessibilityMatchPredicate PredicateForSearchKey(
const base::string16& element_type) {
InitSearchKeyToPredicateMapIfNeeded();
const auto& iter = g_search_key_to_predicate_map.Get().find(element_type);
if (iter != g_search_key_to_predicate_map.Get().end())
return iter->second;
// If we don't recognize the selector, return any element that a
// screen reader should navigate to.
return AllInterestingNodesPredicate;
}
// The element in the document for which we may be displaying an autofill popup.
int32_t g_element_hosting_autofill_popup_unique_id = -1;
// The element in the document that is the next element after
// |g_element_hosting_autofill_popup_unique_id|.
int32_t g_element_after_element_hosting_autofill_popup_unique_id = -1;
// Autofill popup will not be part of the |AXTree| that is sent by renderer.
// Hence, we need a proxy |AXNode| to represent the autofill popup.
BrowserAccessibility* g_autofill_popup_proxy_node = nullptr;
ui::AXNode* g_autofill_popup_proxy_node_ax_node = nullptr;
void DeleteAutofillPopupProxy() {
if (g_autofill_popup_proxy_node) {
g_autofill_popup_proxy_node->Destroy();
delete g_autofill_popup_proxy_node_ax_node;
g_autofill_popup_proxy_node = nullptr;
}
}
// The most common use of the EXTRA_DATA_TEXT_CHARACTER_LOCATION_KEY
// API is to retrieve character bounds for one word at a time. There
// should never need to be a reason to return more than this many
// character bounding boxes at once. Set the limit much higher than needed
// but small enough to prevent wasting memory and cpu if abused.
const int kMaxCharacterBoundingBoxLen = 1024;
} // anonymous namespace
class WebContentsAccessibilityAndroid::Connector
: public RenderWidgetHostConnector {
public:
Connector(WebContents* web_contents,
WebContentsAccessibilityAndroid* accessibility);
~Connector() override;
// RenderWidgetHostConnector:
void UpdateRenderProcessConnection(
RenderWidgetHostViewAndroid* old_rwhva,
RenderWidgetHostViewAndroid* new_rhwva) override;
private:
std::unique_ptr<WebContentsAccessibilityAndroid> accessibility_;
};
WebContentsAccessibilityAndroid::Connector::Connector(
WebContents* web_contents,
WebContentsAccessibilityAndroid* accessibility)
: RenderWidgetHostConnector(web_contents), accessibility_(accessibility) {
Initialize();
}
WebContentsAccessibilityAndroid::Connector::~Connector() {
// Remove accessibility from the BrowserAccessibilityManager or it may
// continue to reference this object which is being destroyed.
auto* manager = static_cast<BrowserAccessibilityManagerAndroid*>(
accessibility_->web_contents_->GetRootBrowserAccessibilityManager());
if (manager)
manager->set_web_contents_accessibility(nullptr);
}
void WebContentsAccessibilityAndroid::Connector::UpdateRenderProcessConnection(
RenderWidgetHostViewAndroid* old_rwhva,
RenderWidgetHostViewAndroid* new_rwhva) {
if (old_rwhva)
old_rwhva->set_web_contents_accessibility(nullptr);
if (new_rwhva)
new_rwhva->set_web_contents_accessibility(accessibility_.get());
}
WebContentsAccessibilityAndroid::WebContentsAccessibilityAndroid(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
WebContents* web_contents)
: java_ref_(env, obj),
web_contents_(static_cast<WebContentsImpl*>(web_contents)),
frame_info_initialized_(false),
use_zoom_for_dsf_enabled_(IsUseZoomForDSFEnabled()),
root_manager_(nullptr),
connector_(new Connector(web_contents, this)) {
CollectStats();
}
WebContentsAccessibilityAndroid::~WebContentsAccessibilityAndroid() {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
// Clean up autofill popup proxy node in case the popup was not dismissed.
DeleteAutofillPopupProxy();
Java_WebContentsAccessibilityImpl_onNativeObjectDestroyed(env, obj);
}
jboolean WebContentsAccessibilityAndroid::IsEnabled(
JNIEnv* env,
const JavaParamRef<jobject>& obj) {
return root_manager_ != nullptr;
}
void WebContentsAccessibilityAndroid::Enable(JNIEnv* env,
const JavaParamRef<jobject>& obj) {
BrowserAccessibilityStateImpl* accessibility_state =
BrowserAccessibilityStateImpl::GetInstance();
auto* manager = static_cast<BrowserAccessibilityManagerAndroid*>(
web_contents_->GetRootBrowserAccessibilityManager());
// First check if we already have a BrowserAccessibilityManager that
// that needs to be connected to this instance. This can happen if
// BAM creation precedes render view updates for the associated
// web contents.
if (manager) {
set_root_manager(manager);
manager->set_web_contents_accessibility(this);
return;
}
// Otherwise, enable accessibility globally unless it was
// explicitly disallowed by a command-line flag, then enable it for
// this WebContents if that succeeded.
accessibility_state->OnScreenReaderDetected();
if (accessibility_state->IsAccessibleBrowser())
web_contents_->AddAccessibilityMode(ui::kAXModeComplete);
}
bool WebContentsAccessibilityAndroid::ShouldRespectDisplayedPasswordText() {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return false;
return Java_WebContentsAccessibilityImpl_shouldRespectDisplayedPasswordText(
env, obj);
}
bool WebContentsAccessibilityAndroid::ShouldExposePasswordText() {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return false;
return Java_WebContentsAccessibilityImpl_shouldExposePasswordText(env, obj);
}
void WebContentsAccessibilityAndroid::HandlePageLoaded(int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handlePageLoaded(env, obj, unique_id);
}
void WebContentsAccessibilityAndroid::HandleContentChanged(int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleContentChanged(env, obj, unique_id);
}
void WebContentsAccessibilityAndroid::HandleFocusChanged(int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleFocusChanged(env, obj, unique_id);
}
void WebContentsAccessibilityAndroid::HandleCheckStateChanged(
int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleCheckStateChanged(env, obj,
unique_id);
}
void WebContentsAccessibilityAndroid::HandleClicked(int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleClicked(env, obj, unique_id);
}
void WebContentsAccessibilityAndroid::HandleScrollPositionChanged(
int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleScrollPositionChanged(env, obj,
unique_id);
}
void WebContentsAccessibilityAndroid::HandleScrolledToAnchor(
int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleScrolledToAnchor(env, obj, unique_id);
}
void WebContentsAccessibilityAndroid::AnnounceLiveRegionText(
const base::string16& text) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_announceLiveRegionText(
env, obj, base::android::ConvertUTF16ToJavaString(env, text));
}
void WebContentsAccessibilityAndroid::HandleTextSelectionChanged(
int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleTextSelectionChanged(env, obj,
unique_id);
}
void WebContentsAccessibilityAndroid::HandleEditableTextChanged(
int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleEditableTextChanged(env, obj,
unique_id);
}
void WebContentsAccessibilityAndroid::HandleSliderChanged(int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleSliderChanged(env, obj, unique_id);
}
void WebContentsAccessibilityAndroid::SendDelayedWindowContentChangedEvent() {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_sendDelayedWindowContentChangedEvent(env,
obj);
}
void WebContentsAccessibilityAndroid::HandleHover(int32_t unique_id) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleHover(env, obj, unique_id);
}
bool WebContentsAccessibilityAndroid::OnHoverEvent(
const ui::MotionEventAndroid& event) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return false;
if (!Java_WebContentsAccessibilityImpl_onHoverEvent(
env, obj,
ui::MotionEventAndroid::GetAndroidAction(event.GetAction())))
return false;
// |HitTest| sends an IPC to the render process to do the hit testing.
// The response is handled by HandleHover when it returns.
// Hover event was consumed by accessibility by now. Return true to
// stop the event from proceeding.
if (event.GetAction() != ui::MotionEvent::Action::HOVER_EXIT &&
root_manager_) {
gfx::PointF point =
use_zoom_for_dsf_enabled_ ? event.GetPointPix() : event.GetPoint();
point.Scale(1 / page_scale_);
root_manager_->HitTest(gfx::ToFlooredPoint(point));
}
return true;
}
void WebContentsAccessibilityAndroid::HandleNavigate() {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_handleNavigate(env, obj);
}
base::android::ScopedJavaLocalRef<jstring>
WebContentsAccessibilityAndroid::GetSupportedHtmlElementTypes(
JNIEnv* env,
const JavaParamRef<jobject>& obj) {
InitSearchKeyToPredicateMapIfNeeded();
return base::android::ConvertUTF16ToJavaString(env, g_all_search_keys.Get());
}
jint WebContentsAccessibilityAndroid::GetRootId(
JNIEnv* env,
const JavaParamRef<jobject>& obj) {
if (root_manager_) {
auto* root =
static_cast<BrowserAccessibilityAndroid*>(root_manager_->GetRoot());
if (root)
return static_cast<jint>(root->unique_id());
}
return -1;
}
jboolean WebContentsAccessibilityAndroid::IsNodeValid(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
return GetAXFromUniqueID(unique_id) != NULL;
}
void WebContentsAccessibilityAndroid::HitTest(JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint x,
jint y) {
if (root_manager_)
root_manager_->HitTest(gfx::Point(x, y));
}
jboolean WebContentsAccessibilityAndroid::IsEditableText(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
return node->IsEditableText();
}
jboolean WebContentsAccessibilityAndroid::IsFocused(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
return node->IsFocused();
}
jint WebContentsAccessibilityAndroid::GetEditableTextSelectionStart(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
return node->GetIntAttribute(ax::mojom::IntAttribute::kTextSelStart);
}
jint WebContentsAccessibilityAndroid::GetEditableTextSelectionEnd(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
return node->GetIntAttribute(ax::mojom::IntAttribute::kTextSelEnd);
}
jboolean WebContentsAccessibilityAndroid::PopulateAccessibilityNodeInfo(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
const JavaParamRef<jobject>& info,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
if (node->PlatformGetParent()) {
auto* android_node =
static_cast<BrowserAccessibilityAndroid*>(node->PlatformGetParent());
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoParent(
env, obj, info, android_node->unique_id());
}
for (unsigned i = 0; i < node->PlatformChildCount(); ++i) {
auto* android_node =
static_cast<BrowserAccessibilityAndroid*>(node->PlatformGetChild(i));
Java_WebContentsAccessibilityImpl_addAccessibilityNodeInfoChild(
env, obj, info, android_node->unique_id());
}
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoBooleanAttributes(
env, obj, info, unique_id, node->IsCheckable(), node->IsChecked(),
node->IsClickable(), node->IsEnabled(), node->IsFocusable(),
node->IsFocused(), node->IsPassword(), node->IsScrollable(),
node->IsSelected(), node->IsVisibleToUser());
Java_WebContentsAccessibilityImpl_addAccessibilityNodeInfoActions(
env, obj, info, unique_id, node->CanScrollForward(),
node->CanScrollBackward(), node->CanScrollUp(), node->CanScrollDown(),
node->CanScrollLeft(), node->CanScrollRight(), node->IsClickable(),
node->IsEditableText(), node->IsEnabled(), node->IsFocusable(),
node->IsFocused(), node->IsCollapsed(), node->IsExpanded(),
node->HasNonEmptyValue());
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoClassName(
env, obj, info,
base::android::ConvertUTF8ToJavaString(env, node->GetClassName()));
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoText(
env, obj, info,
base::android::ConvertUTF16ToJavaString(env, node->GetText()),
node->IsLink(), node->IsEditableText(),
base::android::ConvertUTF16ToJavaString(
env, node->GetInheritedString16Attribute(
ax::mojom::StringAttribute::kLanguage)));
base::string16 element_id;
if (node->GetHtmlAttribute("id", &element_id)) {
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoViewIdResourceName(
env, obj, info,
base::android::ConvertUTF16ToJavaString(env, element_id));
}
float dip_scale = use_zoom_for_dsf_enabled_
? 1 / root_manager_->device_scale_factor()
: 1.0;
gfx::Rect absolute_rect = gfx::ScaleToEnclosingRect(node->GetPageBoundsRect(),
dip_scale, dip_scale);
gfx::Rect parent_relative_rect = absolute_rect;
if (node->PlatformGetParent()) {
gfx::Rect parent_rect = gfx::ScaleToEnclosingRect(
node->PlatformGetParent()->GetPageBoundsRect(), dip_scale, dip_scale);
parent_relative_rect.Offset(-parent_rect.OffsetFromOrigin());
}
bool is_root = node->PlatformGetParent() == NULL;
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoLocation(
env, obj, info, unique_id, absolute_rect.x(), absolute_rect.y(),
parent_relative_rect.x(), parent_relative_rect.y(), absolute_rect.width(),
absolute_rect.height(), is_root);
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoKitKatAttributes(
env, obj, info, is_root, node->IsEditableText(),
base::android::ConvertUTF8ToJavaString(env, node->GetRoleString()),
base::android::ConvertUTF16ToJavaString(env, node->GetRoleDescription()),
base::android::ConvertUTF16ToJavaString(env, node->GetHint()),
node->GetIntAttribute(ax::mojom::IntAttribute::kTextSelStart),
node->GetIntAttribute(ax::mojom::IntAttribute::kTextSelEnd),
node->HasImage());
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoLollipopAttributes(
env, obj, info, node->CanOpenPopup(), node->IsContentInvalid(),
node->IsDismissable(), node->IsMultiLine(), node->AndroidInputType(),
node->AndroidLiveRegionType());
bool has_character_locations = node->HasCharacterLocations();
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoOAttributes(
env, obj, info, has_character_locations);
if (node->IsCollection()) {
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoCollectionInfo(
env, obj, info, node->RowCount(), node->ColumnCount(),
node->IsHierarchical());
}
if (node->IsCollectionItem() || node->IsHeading()) {
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoCollectionItemInfo(
env, obj, info, node->RowIndex(), node->RowSpan(), node->ColumnIndex(),
node->ColumnSpan(), node->IsHeading());
}
if (node->IsRangeType()) {
Java_WebContentsAccessibilityImpl_setAccessibilityNodeInfoRangeInfo(
env, obj, info, node->AndroidRangeType(), node->RangeMin(),
node->RangeMax(), node->RangeCurrentValue());
}
return true;
}
jboolean WebContentsAccessibilityAndroid::PopulateAccessibilityEvent(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
const JavaParamRef<jobject>& event,
jint unique_id,
jint event_type) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
Java_WebContentsAccessibilityImpl_setAccessibilityEventBooleanAttributes(
env, obj, event, node->IsChecked(), node->IsEnabled(), node->IsPassword(),
node->IsScrollable());
Java_WebContentsAccessibilityImpl_setAccessibilityEventClassName(
env, obj, event,
base::android::ConvertUTF8ToJavaString(env, node->GetClassName()));
Java_WebContentsAccessibilityImpl_setAccessibilityEventListAttributes(
env, obj, event, node->GetItemIndex(), node->GetItemCount());
Java_WebContentsAccessibilityImpl_setAccessibilityEventScrollAttributes(
env, obj, event, node->GetScrollX(), node->GetScrollY(),
node->GetMaxScrollX(), node->GetMaxScrollY());
switch (event_type) {
case ANDROID_ACCESSIBILITY_EVENT_TEXT_CHANGED: {
base::string16 before_text = node->GetTextChangeBeforeText();
base::string16 text = node->GetText();
Java_WebContentsAccessibilityImpl_setAccessibilityEventTextChangedAttrs(
env, obj, event, node->GetTextChangeFromIndex(),
node->GetTextChangeAddedCount(), node->GetTextChangeRemovedCount(),
base::android::ConvertUTF16ToJavaString(env, before_text),
base::android::ConvertUTF16ToJavaString(env, text));
break;
}
case ANDROID_ACCESSIBILITY_EVENT_TEXT_SELECTION_CHANGED: {
base::string16 text = node->GetText();
Java_WebContentsAccessibilityImpl_setAccessibilityEventSelectionAttrs(
env, obj, event, node->GetSelectionStart(), node->GetSelectionEnd(),
node->GetEditableTextLength(),
base::android::ConvertUTF16ToJavaString(env, text));
break;
}
default:
break;
}
Java_WebContentsAccessibilityImpl_setAccessibilityEventLollipopAttributes(
env, obj, event, node->CanOpenPopup(), node->IsContentInvalid(),
node->IsDismissable(), node->IsMultiLine(), node->AndroidInputType(),
node->AndroidLiveRegionType());
if (node->IsCollection()) {
Java_WebContentsAccessibilityImpl_setAccessibilityEventCollectionInfo(
env, obj, event, node->RowCount(), node->ColumnCount(),
node->IsHierarchical());
}
if (node->IsHeading()) {
Java_WebContentsAccessibilityImpl_setAccessibilityEventHeadingFlag(
env, obj, event, true);
}
if (node->IsCollectionItem()) {
Java_WebContentsAccessibilityImpl_setAccessibilityEventCollectionItemInfo(
env, obj, event, node->RowIndex(), node->RowSpan(), node->ColumnIndex(),
node->ColumnSpan());
}
if (node->IsRangeType()) {
Java_WebContentsAccessibilityImpl_setAccessibilityEventRangeInfo(
env, obj, event, node->AndroidRangeType(), node->RangeMin(),
node->RangeMax(), node->RangeCurrentValue());
}
return true;
}
void WebContentsAccessibilityAndroid::Click(JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (node)
node->manager()->DoDefaultAction(*node);
}
void WebContentsAccessibilityAndroid::Focus(JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (node)
node->manager()->SetFocus(*node);
}
void WebContentsAccessibilityAndroid::Blur(JNIEnv* env,
const JavaParamRef<jobject>& obj) {
if (root_manager_)
root_manager_->SetFocus(*root_manager_->GetRoot());
}
void WebContentsAccessibilityAndroid::ScrollToMakeNodeVisible(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (node)
node->manager()->ScrollToMakeVisible(
*node, gfx::Rect(node->GetFrameBoundsRect().size()));
}
void WebContentsAccessibilityAndroid::SetTextFieldValue(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id,
const JavaParamRef<jstring>& value) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (node) {
node->manager()->SetValue(
*node, base::android::ConvertJavaStringToUTF8(env, value));
}
}
void WebContentsAccessibilityAndroid::SetSelection(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id,
jint start,
jint end) {
using AXPlatformPositionInstance =
BrowserAccessibilityPosition::AXPositionInstance;
using AXPlatformRange = ui::AXRange<AXPlatformPositionInstance::element_type>;
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (node) {
node->manager()->SetSelection(AXPlatformRange(node->CreatePositionAt(start),
node->CreatePositionAt(end)));
}
}
jboolean WebContentsAccessibilityAndroid::AdjustSlider(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id,
jboolean increment) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
BrowserAccessibilityAndroid* android_node =
static_cast<BrowserAccessibilityAndroid*>(node);
if (!android_node->IsSlider() || !android_node->IsEnabled())
return false;
float value =
node->GetFloatAttribute(ax::mojom::FloatAttribute::kValueForRange);
float min =
node->GetFloatAttribute(ax::mojom::FloatAttribute::kMinValueForRange);
float max =
node->GetFloatAttribute(ax::mojom::FloatAttribute::kMaxValueForRange);
if (max <= min)
return false;
// To behave similarly to an Android SeekBar, move by an increment of
// approximately 5%.
float original_value = value;
float delta = (max - min) / 20.0f;
// Slider does not move if the delta value is less than 1.
delta = ((delta < 1) ? 1 : delta);
value += (increment ? delta : -delta);
value = std::max(std::min(value, max), min);
if (value != original_value) {
node->manager()->SetValue(*node, base::NumberToString(value));
return true;
}
return false;
}
void WebContentsAccessibilityAndroid::ShowContextMenu(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (node)
node->manager()->ShowContextMenu(*node);
}
jint WebContentsAccessibilityAndroid::FindElementType(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint start_id,
const JavaParamRef<jstring>& element_type_str,
jboolean forwards) {
BrowserAccessibilityAndroid* start_node = GetAXFromUniqueID(start_id);
if (!start_node)
return 0;
if (!root_manager_)
return 0;
BrowserAccessibility* root = root_manager_->GetRoot();
if (!root)
return 0;
AccessibilityMatchPredicate predicate = PredicateForSearchKey(
base::android::ConvertJavaStringToUTF16(env, element_type_str));
OneShotAccessibilityTreeSearch tree_search(root);
tree_search.SetStartNode(start_node);
tree_search.SetDirection(forwards
? OneShotAccessibilityTreeSearch::FORWARDS
: OneShotAccessibilityTreeSearch::BACKWARDS);
tree_search.SetResultLimit(1);
tree_search.SetImmediateDescendantsOnly(false);
// SetCanWrapToLastElement needs to be set as true after talkback pushes its
// corresponding change for b/29103330.
tree_search.SetCanWrapToLastElement(false);
tree_search.SetVisibleOnly(false);
tree_search.AddPredicate(predicate);
if (tree_search.CountMatches() == 0)
return 0;
auto* android_node =
static_cast<BrowserAccessibilityAndroid*>(tree_search.GetMatchAtIndex(0));
int32_t element_id = android_node->unique_id();
// Navigate forwards to the autofill popup's proxy node if focus is currently
// on the element hosting the autofill popup. Once within the popup, a back
// press will navigate back to the element hosting the popup. If user swipes
// past last suggestion in the popup, or swipes left from the first suggestion
// in the popup, we will navigate to the element that is the next element in
// the document after the element hosting the popup.
if (forwards && start_id == g_element_hosting_autofill_popup_unique_id &&
g_autofill_popup_proxy_node) {
g_element_after_element_hosting_autofill_popup_unique_id = element_id;
auto* proxy_android_node =
static_cast<BrowserAccessibilityAndroid*>(g_autofill_popup_proxy_node);
return proxy_android_node->unique_id();
}
return element_id;
}
jboolean WebContentsAccessibilityAndroid::NextAtGranularity(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint granularity,
jboolean extend_selection,
jint unique_id,
jint cursor_index) {
if (!root_manager_)
return false;
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
jint start_index = -1;
int end_index = -1;
if (root_manager_->NextAtGranularity(granularity, cursor_index, node,
&start_index, &end_index)) {
base::string16 text = node->GetText();
Java_WebContentsAccessibilityImpl_finishGranularityMove(
env, obj, base::android::ConvertUTF16ToJavaString(env, text),
extend_selection, start_index, end_index, true);
return true;
}
return false;
}
jint WebContentsAccessibilityAndroid::GetTextLength(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return -1;
base::string16 text = node->GetText();
return text.size();
}
jboolean WebContentsAccessibilityAndroid::PreviousAtGranularity(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint granularity,
jboolean extend_selection,
jint unique_id,
jint cursor_index) {
if (!root_manager_)
return false;
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
jint start_index = -1;
int end_index = -1;
if (root_manager_->PreviousAtGranularity(granularity, cursor_index, node,
&start_index, &end_index)) {
Java_WebContentsAccessibilityImpl_finishGranularityMove(
env, obj, base::android::ConvertUTF16ToJavaString(env, node->GetText()),
extend_selection, start_index, end_index, false);
return true;
}
return false;
}
void WebContentsAccessibilityAndroid::MoveAccessibilityFocus(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint old_unique_id,
jint new_unique_id) {
BrowserAccessibilityAndroid* old_node = GetAXFromUniqueID(old_unique_id);
if (old_node)
old_node->manager()->ClearAccessibilityFocus(*old_node);
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(new_unique_id);
if (!node)
return;
node->manager()->SetAccessibilityFocus(*node);
// When Android sets accessibility focus to a node, we load inline text
// boxes for that node so that subsequent requests for character bounding
// boxes will succeed. However, don't do that for the root of the tree,
// as that will result in loading inline text boxes for the whole tree.
if (node != node->manager()->GetRoot())
node->manager()->LoadInlineTextBoxes(*node);
}
bool WebContentsAccessibilityAndroid::IsSlider(JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
return node->GetRole() == ax::mojom::Role::kSlider;
}
void WebContentsAccessibilityAndroid::OnAutofillPopupDisplayed(
JNIEnv* env,
const JavaParamRef<jobject>& obj) {
if (!root_manager_ ||
!base::FeatureList::IsEnabled(features::kAndroidAutofillAccessibility))
return;
BrowserAccessibility* current_focus = root_manager_->GetFocus();
if (current_focus == nullptr) {
return;
}
DeleteAutofillPopupProxy();
g_autofill_popup_proxy_node = BrowserAccessibility::Create();
g_autofill_popup_proxy_node_ax_node =
new ui::AXNode(nullptr, nullptr, -1, -1);
ui::AXNodeData ax_node_data;
ax_node_data.role = ax::mojom::Role::kMenu;
ax_node_data.SetName("Autofill");
ax_node_data.SetRestriction(ax::mojom::Restriction::kReadOnly);
ax_node_data.AddState(ax::mojom::State::kFocusable);
ax_node_data.AddBoolAttribute(ax::mojom::BoolAttribute::kSelected, false);
g_autofill_popup_proxy_node_ax_node->SetData(ax_node_data);
g_autofill_popup_proxy_node->Init(root_manager_,
g_autofill_popup_proxy_node_ax_node);
auto* android_node = static_cast<BrowserAccessibilityAndroid*>(current_focus);
g_element_hosting_autofill_popup_unique_id = android_node->unique_id();
}
void WebContentsAccessibilityAndroid::OnAutofillPopupDismissed(
JNIEnv* env,
const JavaParamRef<jobject>& obj) {
g_element_hosting_autofill_popup_unique_id = -1;
g_element_after_element_hosting_autofill_popup_unique_id = -1;
DeleteAutofillPopupProxy();
}
jint WebContentsAccessibilityAndroid::
GetIdForElementAfterElementHostingAutofillPopup(
JNIEnv* env,
const JavaParamRef<jobject>& obj) {
if (!base::FeatureList::IsEnabled(features::kAndroidAutofillAccessibility) ||
g_element_after_element_hosting_autofill_popup_unique_id == -1 ||
GetAXFromUniqueID(
g_element_after_element_hosting_autofill_popup_unique_id) == nullptr)
return 0;
return g_element_after_element_hosting_autofill_popup_unique_id;
}
jboolean WebContentsAccessibilityAndroid::IsAutofillPopupNode(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
auto* android_node =
static_cast<BrowserAccessibilityAndroid*>(g_autofill_popup_proxy_node);
return g_autofill_popup_proxy_node && android_node->unique_id() == unique_id;
}
bool WebContentsAccessibilityAndroid::Scroll(JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id,
int direction) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
return node->Scroll(direction);
}
jboolean WebContentsAccessibilityAndroid::AreInlineTextBoxesLoaded(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return false;
return node->AreInlineTextBoxesLoaded();
}
void WebContentsAccessibilityAndroid::LoadInlineTextBoxes(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
jint unique_id) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (node)
node->manager()->LoadInlineTextBoxes(*node);
}
base::android::ScopedJavaLocalRef<jintArray>
WebContentsAccessibilityAndroid::GetCharacterBoundingBoxes(
JNIEnv* env,
const base::android::JavaParamRef<jobject>& obj,
jint unique_id,
jint start,
jint len) {
BrowserAccessibilityAndroid* node = GetAXFromUniqueID(unique_id);
if (!node)
return nullptr;
if (len <= 0 || len > kMaxCharacterBoundingBoxLen) {
LOG(ERROR) << "Trying to request EXTRA_DATA_TEXT_CHARACTER_LOCATION_KEY "
<< "with a length of " << len << ". Valid values are between 1 "
<< "and " << kMaxCharacterBoundingBoxLen;
return nullptr;
}
gfx::Rect object_bounds = node->GetPageBoundsRect();
int coords[4 * len];
for (int i = 0; i < len; i++) {
gfx::Rect char_bounds = node->GetPageBoundsForRange(start + i, 1, false);
if (char_bounds.IsEmpty())
char_bounds = object_bounds;
coords[4 * i + 0] = char_bounds.x();
coords[4 * i + 1] = char_bounds.y();
coords[4 * i + 2] = char_bounds.right();
coords[4 * i + 3] = char_bounds.bottom();
}
return base::android::ToJavaIntArray(env, coords,
static_cast<size_t>(4 * len));
}
BrowserAccessibilityAndroid* WebContentsAccessibilityAndroid::GetAXFromUniqueID(
int32_t unique_id) {
return static_cast<BrowserAccessibilityAndroid*>(
BrowserAccessibilityAndroid::GetFromUniqueId(unique_id));
}
void WebContentsAccessibilityAndroid::UpdateFrameInfo(float page_scale) {
page_scale_ = page_scale;
if (frame_info_initialized_)
return;
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
Java_WebContentsAccessibilityImpl_notifyFrameInfoInitialized(env, obj);
frame_info_initialized_ = true;
}
void WebContentsAccessibilityAndroid::CollectStats() {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
if (obj.is_null())
return;
int event_type_mask =
Java_WebContentsAccessibilityImpl_getAccessibilityServiceEventTypeMask(
env, obj);
EVENT_TYPE_HISTOGRAM(event_type_mask, ANNOUNCEMENT);
EVENT_TYPE_HISTOGRAM(event_type_mask, ASSIST_READING_CONTEXT);
EVENT_TYPE_HISTOGRAM(event_type_mask, GESTURE_DETECTION_END);
EVENT_TYPE_HISTOGRAM(event_type_mask, GESTURE_DETECTION_START);
EVENT_TYPE_HISTOGRAM(event_type_mask, NOTIFICATION_STATE_CHANGED);
EVENT_TYPE_HISTOGRAM(event_type_mask, TOUCH_EXPLORATION_GESTURE_END);
EVENT_TYPE_HISTOGRAM(event_type_mask, TOUCH_EXPLORATION_GESTURE_START);
EVENT_TYPE_HISTOGRAM(event_type_mask, TOUCH_INTERACTION_END);
EVENT_TYPE_HISTOGRAM(event_type_mask, TOUCH_INTERACTION_START);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_ACCESSIBILITY_FOCUSED);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_ACCESSIBILITY_FOCUS_CLEARED);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_CLICKED);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_CONTEXT_CLICKED);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_FOCUSED);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_HOVER_ENTER);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_HOVER_EXIT);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_LONG_CLICKED);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_SCROLLED);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_SELECTED);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_TEXT_CHANGED);
EVENT_TYPE_HISTOGRAM(event_type_mask, VIEW_TEXT_SELECTION_CHANGED);
EVENT_TYPE_HISTOGRAM(event_type_mask,
VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY);
EVENT_TYPE_HISTOGRAM(event_type_mask, WINDOWS_CHANGED);
EVENT_TYPE_HISTOGRAM(event_type_mask, WINDOW_CONTENT_CHANGED);
EVENT_TYPE_HISTOGRAM(event_type_mask, WINDOW_STATE_CHANGED);
int feedback_type_mask =
Java_WebContentsAccessibilityImpl_getAccessibilityServiceFeedbackTypeMask(
env, obj);
FEEDBACK_TYPE_HISTOGRAM(feedback_type_mask, SPOKEN);
FEEDBACK_TYPE_HISTOGRAM(feedback_type_mask, HAPTIC);
FEEDBACK_TYPE_HISTOGRAM(feedback_type_mask, AUDIBLE);
FEEDBACK_TYPE_HISTOGRAM(feedback_type_mask, VISUAL);
FEEDBACK_TYPE_HISTOGRAM(feedback_type_mask, GENERIC);
FEEDBACK_TYPE_HISTOGRAM(feedback_type_mask, BRAILLE);
int flags_mask =
Java_WebContentsAccessibilityImpl_getAccessibilityServiceFlagsMask(env,
obj);
FLAGS_HISTOGRAM(flags_mask, INCLUDE_NOT_IMPORTANT_VIEWS);
FLAGS_HISTOGRAM(flags_mask, REQUEST_TOUCH_EXPLORATION_MODE);
FLAGS_HISTOGRAM(flags_mask, REQUEST_ENHANCED_WEB_ACCESSIBILITY);
FLAGS_HISTOGRAM(flags_mask, REPORT_VIEW_IDS);
FLAGS_HISTOGRAM(flags_mask, REQUEST_FILTER_KEY_EVENTS);
FLAGS_HISTOGRAM(flags_mask, RETRIEVE_INTERACTIVE_WINDOWS);
FLAGS_HISTOGRAM(flags_mask, FORCE_DIRECT_BOOT_AWARE);
int capabilities_mask =
Java_WebContentsAccessibilityImpl_getAccessibilityServiceCapabilitiesMask(
env, obj);
CAPABILITY_TYPE_HISTOGRAM(capabilities_mask, CAN_RETRIEVE_WINDOW_CONTENT);
CAPABILITY_TYPE_HISTOGRAM(capabilities_mask, CAN_REQUEST_TOUCH_EXPLORATION);
CAPABILITY_TYPE_HISTOGRAM(capabilities_mask,
CAN_REQUEST_ENHANCED_WEB_ACCESSIBILITY);
CAPABILITY_TYPE_HISTOGRAM(capabilities_mask, CAN_REQUEST_FILTER_KEY_EVENTS);
CAPABILITY_TYPE_HISTOGRAM(capabilities_mask, CAN_CONTROL_MAGNIFICATION);
CAPABILITY_TYPE_HISTOGRAM(capabilities_mask, CAN_PERFORM_GESTURES);
}
jlong JNI_WebContentsAccessibilityImpl_Init(
JNIEnv* env,
const JavaParamRef<jobject>& obj,
const JavaParamRef<jobject>& jweb_contents) {
WebContents* web_contents = WebContents::FromJavaWebContents(jweb_contents);
DCHECK(web_contents);
return reinterpret_cast<intptr_t>(
new WebContentsAccessibilityAndroid(env, obj, web_contents));
}
} // namespace content