Native Android accessibility.

content/browser/accessibility/browser_accessibility_android.h

+// Copyright (c) 2013 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.
+
+#ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_ANDROID_H_
+#define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_ANDROID_H_
+
+#include "base/android/scoped_java_ref.h"
+#include "content/browser/accessibility/browser_accessibility.h"
+
+namespace content {
+
+class BrowserAccessibilityAndroid : public BrowserAccessibility {
+ public:
+  // Overrides from BrowserAccessibility.
+  virtual void PostInitialize() OVERRIDE;
+  virtual bool IsNative() const OVERRIDE;
+
+  // --------------------------------------------------------------------------
+  // Methods called from Java via JNI
+  // --------------------------------------------------------------------------
+
+  // Actions
+  void FocusJNI(JNIEnv* env, jobject obj);
+  void ClickJNI(JNIEnv* env, jobject obj);
+
+  // Const accessors
+  jboolean GetClickableJNI(JNIEnv* env, jobject obj) const;
+  jboolean IsFocusedJNI(JNIEnv* env, jobject obj) const;
+  jboolean IsEditableTextJNI(JNIEnv* env, jobject obj) const;
+  base::android::ScopedJavaLocalRef<jstring> GetNameJNI(
+      JNIEnv* env, jobject obj) const;
+  base::android::ScopedJavaLocalRef<jobject> GetAbsoluteRectJNI(
+      JNIEnv* env, jobject obj) const;
+  base::android::ScopedJavaLocalRef<jobject> GetRectInParentJNI(
+      JNIEnv* env, jobject obj) const;
+  jboolean IsFocusableJNI(JNIEnv* env, jobject obj) const;
+  jint GetParentJNI(JNIEnv* env, jobject obj) const;
+  jint GetChildCountJNI(JNIEnv* env, jobject obj) const;
+  jint GetChildIdAtJNI(
+      JNIEnv* env, jobject obj, jint child_index) const;
+  jboolean IsCheckableJNI(JNIEnv* env, jobject obj) const;
+  jboolean IsCheckedJNI(JNIEnv* env, jobject obj) const;
+  base::android::ScopedJavaLocalRef<jstring> GetClassNameJNI(
+      JNIEnv* env, jobject obj) const;
+  jboolean IsEnabledJNI(JNIEnv* env, jobject obj) const;
+  jboolean IsPasswordJNI(JNIEnv* env, jobject obj) const;
+  jboolean IsScrollableJNI(JNIEnv* env, jobject obj) const;
+  jboolean IsSelectedJNI(JNIEnv* env, jobject obj) const;
+  jboolean IsVisibleJNI(JNIEnv* env, jobject obj) const;
+  jint GetItemIndexJNI(JNIEnv* env, jobject obj) const;
+  jint GetItemCountJNI(JNIEnv* env, jobject obj) const;
+  jint GetScrollXJNI(JNIEnv* env, jobject obj) const;
+  jint GetScrollYJNI(JNIEnv* env, jobject obj) const;
+  jint GetMaxScrollXJNI(JNIEnv* env, jobject obj) const;
+  jint GetMaxScrollYJNI(JNIEnv* env, jobject obj) const;
+  base::android::ScopedJavaLocalRef<jstring> GetAriaLiveJNI(
+      JNIEnv* env, jobject obj) const;
+  jint GetSelectionStartJNI(JNIEnv* env, jobject obj) const;
+  jint GetSelectionEndJNI(JNIEnv* env, jobject obj) const;
+  jint GetEditableTextLengthJNI(JNIEnv* env, jobject obj) const;
+  jint GetTextChangeFromIndexJNI(JNIEnv* env, jobject obj) const;
+  jint GetTextChangeAddedCountJNI(JNIEnv* env, jobject obj) const;
+  jint GetTextChangeRemovedCountJNI(JNIEnv* env, jobject obj) const;
+  base::android::ScopedJavaLocalRef<jstring> GetTextChangeBeforeTextJNI(
+      JNIEnv* env, jobject obj) const;
+
+ private:
+  // This gives BrowserAccessibility::Create access to the class constructor.
+  friend class BrowserAccessibility;
+
+  // Allow BrowserAccessibilityManagerAndroid to call these private methods.
+  friend class BrowserAccessibilityManagerAndroid;
+
+  BrowserAccessibilityAndroid();
+
+  string16 ComputeName() const;
+  string16 GetAriaLive() const;
+  bool IsFocusable() const;
+  bool HasFocusableChild() const;
+  bool HasOnlyStaticTextChildren() const;
+  bool IsIframe() const;
+  bool IsLeaf() const;
+
+  void NotifyLiveRegionUpdate(string16& aria_live);
+
+  string16 cached_text_;
+  bool first_time_;
+  string16 old_value_;
+  string16 new_value_;
+
+  DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityAndroid);
+};
+
+bool RegisterBrowserAccessibility(JNIEnv* env);
+
+}  // namespace content
+
+#endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_ANDROID_H_