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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_ANDROID_H_ | 5 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_ANDROID_H_ |
| 6 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_ANDROID_H_ | 6 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_ANDROID_H_ |
| 7 | 7 |
| 8 #include "base/android/scoped_java_ref.h" | 8 #include "base/android/scoped_java_ref.h" |
| 9 #include "content/browser/accessibility/browser_accessibility_manager.h" | 9 #include "content/browser/accessibility/browser_accessibility_manager.h" |
| 10 #include "content/browser/android/content_view_core_impl.h" | 10 #include "content/browser/android/content_view_core_impl.h" |
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| 27 | 27 |
| 28 virtual ~BrowserAccessibilityManagerAndroid(); | 28 virtual ~BrowserAccessibilityManagerAndroid(); |
| 29 | 29 |
| 30 static ui::AXTreeUpdate GetEmptyDocument(); | 30 static ui::AXTreeUpdate GetEmptyDocument(); |
| 31 | 31 |
| 32 void SetContentViewCore( | 32 void SetContentViewCore( |
| 33 base::android::ScopedJavaLocalRef<jobject> content_view_core); | 33 base::android::ScopedJavaLocalRef<jobject> content_view_core); |
| 34 | 34 |
| 35 // Implementation of BrowserAccessibilityManager. | 35 // Implementation of BrowserAccessibilityManager. |
| 36 virtual void NotifyAccessibilityEvent( | 36 virtual void NotifyAccessibilityEvent( |
| 37 ui::AXEvent event_type, BrowserAccessibility* node) OVERRIDE; | 37 ui::AXEvent event_type, BrowserAccessibility* node) override; |
| 38 | 38 |
| 39 // -------------------------------------------------------------------------- | 39 // -------------------------------------------------------------------------- |
| 40 // Methods called from Java via JNI | 40 // Methods called from Java via JNI |
| 41 // -------------------------------------------------------------------------- | 41 // -------------------------------------------------------------------------- |
| 42 | 42 |
| 43 // Tree methods. | 43 // Tree methods. |
| 44 jint GetRootId(JNIEnv* env, jobject obj); | 44 jint GetRootId(JNIEnv* env, jobject obj); |
| 45 jboolean IsNodeValid(JNIEnv* env, jobject obj, jint id); | 45 jboolean IsNodeValid(JNIEnv* env, jobject obj, jint id); |
| 46 void HitTest(JNIEnv* env, jobject obj, jint x, jint y); | 46 void HitTest(JNIEnv* env, jobject obj, jint x, jint y); |
| 47 | 47 |
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| 60 // Return the id of the next node in tree order in the direction given by | 60 // Return the id of the next node in tree order in the direction given by |
| 61 // |forwards|, starting with |start_id|, that matches |element_type|, | 61 // |forwards|, starting with |start_id|, that matches |element_type|, |
| 62 // where |element_type| is a special uppercase string from TalkBack or | 62 // where |element_type| is a special uppercase string from TalkBack or |
| 63 // BrailleBack indicating general categories of web content like | 63 // BrailleBack indicating general categories of web content like |
| 64 // "SECTION" or "CONTROL". Return 0 if not found. | 64 // "SECTION" or "CONTROL". Return 0 if not found. |
| 65 jint FindElementType(JNIEnv* env, jobject obj, jint start_id, | 65 jint FindElementType(JNIEnv* env, jobject obj, jint start_id, |
| 66 jstring element_type, jboolean forwards); | 66 jstring element_type, jboolean forwards); |
| 67 | 67 |
| 68 protected: | 68 protected: |
| 69 // AXTreeDelegate overrides. | 69 // AXTreeDelegate overrides. |
| 70 virtual void OnRootChanged(ui::AXNode* new_root) OVERRIDE; | 70 virtual void OnRootChanged(ui::AXNode* new_root) override; |
| 71 | 71 |
| 72 virtual bool UseRootScrollOffsetsWhenComputingBounds() OVERRIDE; | 72 virtual bool UseRootScrollOffsetsWhenComputingBounds() override; |
| 73 | 73 |
| 74 private: | 74 private: |
| 75 // This gives BrowserAccessibilityManager::Create access to the class | 75 // This gives BrowserAccessibilityManager::Create access to the class |
| 76 // constructor. | 76 // constructor. |
| 77 friend class BrowserAccessibilityManager; | 77 friend class BrowserAccessibilityManager; |
| 78 | 78 |
| 79 // A weak reference to the Java BrowserAccessibilityManager object. | 79 // A weak reference to the Java BrowserAccessibilityManager object. |
| 80 // This avoids adding another reference to BrowserAccessibilityManager and | 80 // This avoids adding another reference to BrowserAccessibilityManager and |
| 81 // preventing garbage collection. | 81 // preventing garbage collection. |
| 82 // Premature garbage collection is prevented by the long-lived reference in | 82 // Premature garbage collection is prevented by the long-lived reference in |
| 83 // ContentViewCore. | 83 // ContentViewCore. |
| 84 JavaObjectWeakGlobalRef java_ref_; | 84 JavaObjectWeakGlobalRef java_ref_; |
| 85 | 85 |
| 86 // Handle a hover event from the renderer process. | 86 // Handle a hover event from the renderer process. |
| 87 void HandleHoverEvent(BrowserAccessibility* node); | 87 void HandleHoverEvent(BrowserAccessibility* node); |
| 88 | 88 |
| 89 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityManagerAndroid); | 89 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityManagerAndroid); |
| 90 }; | 90 }; |
| 91 | 91 |
| 92 bool RegisterBrowserAccessibilityManager(JNIEnv* env); | 92 bool RegisterBrowserAccessibilityManager(JNIEnv* env); |
| 93 | 93 |
| 94 } | 94 } |
| 95 | 95 |
| 96 #endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_ANDROID_H
_ | 96 #endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_ANDROID_H
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