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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "content/browser/renderer_host/ime_adapter_android.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <android/input.h> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/android/jni_android.h" | |
| 12 #include "base/android/jni_array.h" | |
| 13 #include "base/android/jni_string.h" | |
| 14 #include "base/android/scoped_java_ref.h" | |
| 15 #include "base/strings/utf_string_conversions.h" | |
| 16 #include "base/time/time.h" | |
| 17 #include "content/browser/frame_host/render_frame_host_impl.h" | |
| 18 #include "content/browser/renderer_host/render_view_host_delegate.h" | |
| 19 #include "content/browser/renderer_host/render_widget_host_impl.h" | |
| 20 #include "content/browser/renderer_host/render_widget_host_view_android.h" | |
| 21 #include "content/common/input_messages.h" | |
| 22 #include "content/common/view_messages.h" | |
| 23 #include "content/public/browser/browser_thread.h" | |
| 24 #include "content/public/browser/native_web_keyboard_event.h" | |
| 25 #include "content/public/browser/web_contents.h" | |
| 26 #include "jni/ImeAdapter_jni.h" | |
| 27 #include "third_party/WebKit/public/platform/WebInputEvent.h" | |
| 28 #include "third_party/WebKit/public/platform/WebTextInputType.h" | |
| 29 #include "third_party/WebKit/public/web/WebCompositionUnderline.h" | |
| 30 | |
| 31 using base::android::AttachCurrentThread; | |
| 32 using base::android::ConvertJavaStringToUTF16; | |
| 33 using base::android::JavaParamRef; | |
| 34 | |
| 35 namespace content { | |
| 36 namespace { | |
| 37 | |
| 38 // Maps a java KeyEvent into a NativeWebKeyboardEvent. | |
| 39 // |java_key_event| is used to maintain a globalref for KeyEvent. | |
| 40 // |type| will determine the WebInputEvent type. | |
| 41 // type, |modifiers|, |time_ms|, |key_code|, |unicode_char| is used to create | |
| 42 // WebKeyboardEvent. |key_code| is also needed ad need to treat the enter key | |
| 43 // as a key press of character \r. | |
| 44 NativeWebKeyboardEvent NativeWebKeyboardEventFromKeyEvent( | |
| 45 JNIEnv* env, | |
| 46 const base::android::JavaRef<jobject>& java_key_event, | |
| 47 int type, | |
| 48 int modifiers, | |
| 49 jlong time_ms, | |
| 50 int key_code, | |
| 51 int scan_code, | |
| 52 bool is_system_key, | |
| 53 int unicode_char) { | |
| 54 return NativeWebKeyboardEvent(env, java_key_event, | |
| 55 static_cast<blink::WebInputEvent::Type>(type), | |
| 56 modifiers, time_ms / 1000.0, key_code, | |
| 57 scan_code, unicode_char, is_system_key); | |
| 58 } | |
| 59 | |
| 60 } // anonymous namespace | |
| 61 | |
| 62 bool RegisterImeAdapter(JNIEnv* env) { | |
| 63 return RegisterNativesImpl(env); | |
| 64 } | |
| 65 | |
| 66 // Callback from Java to convert BackgroundColorSpan data to a | |
| 67 // blink::WebCompositionUnderline instance, and append it to |underlines_ptr|. | |
| 68 void AppendBackgroundColorSpan(JNIEnv*, | |
| 69 const JavaParamRef<jclass>&, | |
| 70 jlong underlines_ptr, | |
| 71 jint start, | |
| 72 jint end, | |
| 73 jint background_color) { | |
| 74 DCHECK_GE(start, 0); | |
| 75 DCHECK_GE(end, 0); | |
| 76 // Do not check |background_color|. | |
| 77 std::vector<blink::WebCompositionUnderline>* underlines = | |
| 78 reinterpret_cast<std::vector<blink::WebCompositionUnderline>*>( | |
| 79 underlines_ptr); | |
| 80 underlines->push_back( | |
| 81 blink::WebCompositionUnderline(static_cast<unsigned>(start), | |
| 82 static_cast<unsigned>(end), | |
| 83 SK_ColorTRANSPARENT, | |
| 84 false, | |
| 85 static_cast<unsigned>(background_color))); | |
| 86 } | |
| 87 | |
| 88 // Callback from Java to convert UnderlineSpan data to a | |
| 89 // blink::WebCompositionUnderline instance, and append it to |underlines_ptr|. | |
| 90 void AppendUnderlineSpan(JNIEnv*, | |
| 91 const JavaParamRef<jclass>&, | |
| 92 jlong underlines_ptr, | |
| 93 jint start, | |
| 94 jint end) { | |
| 95 DCHECK_GE(start, 0); | |
| 96 DCHECK_GE(end, 0); | |
| 97 std::vector<blink::WebCompositionUnderline>* underlines = | |
| 98 reinterpret_cast<std::vector<blink::WebCompositionUnderline>*>( | |
| 99 underlines_ptr); | |
| 100 underlines->push_back( | |
| 101 blink::WebCompositionUnderline(static_cast<unsigned>(start), | |
| 102 static_cast<unsigned>(end), | |
| 103 SK_ColorBLACK, | |
| 104 false, | |
| 105 SK_ColorTRANSPARENT)); | |
| 106 } | |
| 107 | |
| 108 ImeAdapterAndroid::ImeAdapterAndroid(RenderWidgetHostViewAndroid* rwhva) | |
| 109 : rwhva_(rwhva) { | |
| 110 DCHECK(rwhva_); | |
| 111 } | |
| 112 | |
| 113 ImeAdapterAndroid::~ImeAdapterAndroid() { | |
| 114 JNIEnv* env = AttachCurrentThread(); | |
| 115 base::android::ScopedJavaLocalRef<jobject> obj = java_ime_adapter_.get(env); | |
| 116 if (!obj.is_null()) | |
| 117 Java_ImeAdapter_detach(env, obj); | |
| 118 } | |
| 119 | |
| 120 bool ImeAdapterAndroid::SendKeyEvent( | |
| 121 JNIEnv* env, | |
| 122 const JavaParamRef<jobject>&, | |
| 123 const JavaParamRef<jobject>& original_key_event, | |
| 124 int type, | |
| 125 int modifiers, | |
| 126 jlong time_ms, | |
| 127 int key_code, | |
| 128 int scan_code, | |
| 129 bool is_system_key, | |
| 130 int unicode_char) { | |
| 131 NativeWebKeyboardEvent event = NativeWebKeyboardEventFromKeyEvent( | |
| 132 env, original_key_event, type, modifiers, time_ms, key_code, scan_code, | |
| 133 is_system_key, unicode_char); | |
| 134 rwhva_->SendKeyEvent(event); | |
| 135 return true; | |
| 136 } | |
| 137 | |
| 138 void ImeAdapterAndroid::SetComposingText(JNIEnv* env, | |
| 139 const JavaParamRef<jobject>& obj, | |
| 140 const JavaParamRef<jobject>& text, | |
| 141 const JavaParamRef<jstring>& text_str, | |
| 142 int relative_cursor_pos) { | |
| 143 RenderWidgetHostImpl* rwhi = GetFocusedWidget(); | |
| 144 if (!rwhi) | |
| 145 return; | |
| 146 | |
| 147 base::string16 text16 = ConvertJavaStringToUTF16(env, text_str); | |
| 148 | |
| 149 std::vector<blink::WebCompositionUnderline> underlines = | |
| 150 GetUnderlinesFromSpans(env, obj, text, text16); | |
| 151 | |
| 152 // Default to plain underline if we didn't find any span that we care about. | |
| 153 if (underlines.empty()) { | |
| 154 underlines.push_back(blink::WebCompositionUnderline( | |
| 155 0, text16.length(), SK_ColorBLACK, false, SK_ColorTRANSPARENT)); | |
| 156 } | |
| 157 | |
| 158 // relative_cursor_pos is as described in the Android API for | |
| 159 // InputConnection#setComposingText, whereas the parameters for | |
| 160 // ImeSetComposition are relative to the start of the composition. | |
| 161 if (relative_cursor_pos > 0) | |
| 162 relative_cursor_pos = text16.length() + relative_cursor_pos - 1; | |
| 163 | |
| 164 rwhi->ImeSetComposition(text16, underlines, gfx::Range::InvalidRange(), | |
| 165 relative_cursor_pos, relative_cursor_pos); | |
| 166 } | |
| 167 | |
| 168 void ImeAdapterAndroid::CommitText(JNIEnv* env, | |
| 169 const JavaParamRef<jobject>& obj, | |
| 170 const JavaParamRef<jobject>& text, | |
| 171 const JavaParamRef<jstring>& text_str, | |
| 172 int relative_cursor_pos) { | |
| 173 RenderWidgetHostImpl* rwhi = GetFocusedWidget(); | |
| 174 if (!rwhi) | |
| 175 return; | |
| 176 | |
| 177 base::string16 text16 = ConvertJavaStringToUTF16(env, text_str); | |
| 178 | |
| 179 std::vector<blink::WebCompositionUnderline> underlines = | |
| 180 GetUnderlinesFromSpans(env, obj, text, text16); | |
| 181 | |
| 182 // relative_cursor_pos is as described in the Android API for | |
| 183 // InputConnection#commitText, whereas the parameters for | |
| 184 // ImeConfirmComposition are relative to the end of the composition. | |
| 185 if (relative_cursor_pos > 0) | |
| 186 relative_cursor_pos--; | |
| 187 else | |
| 188 relative_cursor_pos -= text16.length(); | |
| 189 | |
| 190 rwhi->ImeCommitText(text16, underlines, gfx::Range::InvalidRange(), | |
| 191 relative_cursor_pos); | |
| 192 } | |
| 193 | |
| 194 void ImeAdapterAndroid::FinishComposingText(JNIEnv* env, | |
| 195 const JavaParamRef<jobject>&) { | |
| 196 RenderWidgetHostImpl* rwhi = GetFocusedWidget(); | |
| 197 if (!rwhi) | |
| 198 return; | |
| 199 | |
| 200 rwhi->ImeFinishComposingText(true); | |
| 201 } | |
| 202 | |
| 203 void ImeAdapterAndroid::AttachImeAdapter( | |
| 204 JNIEnv* env, | |
| 205 const JavaParamRef<jobject>& java_object) { | |
| 206 java_ime_adapter_ = JavaObjectWeakGlobalRef(env, java_object); | |
| 207 } | |
| 208 | |
| 209 void ImeAdapterAndroid::CancelComposition() { | |
| 210 base::android::ScopedJavaLocalRef<jobject> obj = | |
| 211 java_ime_adapter_.get(AttachCurrentThread()); | |
| 212 if (!obj.is_null()) | |
| 213 Java_ImeAdapter_cancelComposition(AttachCurrentThread(), obj); | |
| 214 } | |
| 215 | |
| 216 void ImeAdapterAndroid::FocusedNodeChanged(bool is_editable_node) { | |
| 217 base::android::ScopedJavaLocalRef<jobject> obj = | |
| 218 java_ime_adapter_.get(AttachCurrentThread()); | |
| 219 if (!obj.is_null()) { | |
| 220 Java_ImeAdapter_focusedNodeChanged(AttachCurrentThread(), obj, | |
| 221 is_editable_node); | |
| 222 } | |
| 223 } | |
| 224 | |
| 225 void ImeAdapterAndroid::SetEditableSelectionOffsets( | |
| 226 JNIEnv*, | |
| 227 const JavaParamRef<jobject>&, | |
| 228 int start, | |
| 229 int end) { | |
| 230 RenderFrameHost* rfh = GetFocusedFrame(); | |
| 231 if (!rfh) | |
| 232 return; | |
| 233 | |
| 234 rfh->Send(new InputMsg_SetEditableSelectionOffsets(rfh->GetRoutingID(), start, | |
| 235 end)); | |
| 236 } | |
| 237 | |
| 238 void ImeAdapterAndroid::SetCharacterBounds( | |
| 239 const std::vector<gfx::RectF>& character_bounds) { | |
| 240 JNIEnv* env = AttachCurrentThread(); | |
| 241 base::android::ScopedJavaLocalRef<jobject> obj = java_ime_adapter_.get(env); | |
| 242 if (obj.is_null()) | |
| 243 return; | |
| 244 | |
| 245 const size_t coordinates_array_size = character_bounds.size() * 4; | |
| 246 std::unique_ptr<float[]> coordinates_array(new float[coordinates_array_size]); | |
| 247 for (size_t i = 0; i < character_bounds.size(); ++i) { | |
| 248 const gfx::RectF& rect = character_bounds[i]; | |
| 249 const size_t coordinates_array_index = i * 4; | |
| 250 coordinates_array[coordinates_array_index + 0] = rect.x(); | |
| 251 coordinates_array[coordinates_array_index + 1] = rect.y(); | |
| 252 coordinates_array[coordinates_array_index + 2] = rect.right(); | |
| 253 coordinates_array[coordinates_array_index + 3] = rect.bottom(); | |
| 254 } | |
| 255 Java_ImeAdapter_setCharacterBounds( | |
| 256 env, obj, base::android::ToJavaFloatArray(env, coordinates_array.get(), | |
| 257 coordinates_array_size)); | |
| 258 } | |
| 259 | |
| 260 void ImeAdapterAndroid::SetComposingRegion(JNIEnv*, | |
| 261 const JavaParamRef<jobject>&, | |
| 262 int start, | |
| 263 int end) { | |
| 264 RenderFrameHost* rfh = GetFocusedFrame(); | |
| 265 if (!rfh) | |
| 266 return; | |
| 267 | |
| 268 std::vector<blink::WebCompositionUnderline> underlines; | |
| 269 underlines.push_back(blink::WebCompositionUnderline( | |
| 270 0, end - start, SK_ColorBLACK, false, SK_ColorTRANSPARENT)); | |
| 271 | |
| 272 rfh->Send(new InputMsg_SetCompositionFromExistingText( | |
| 273 rfh->GetRoutingID(), start, end, underlines)); | |
| 274 } | |
| 275 | |
| 276 void ImeAdapterAndroid::DeleteSurroundingText(JNIEnv*, | |
| 277 const JavaParamRef<jobject>&, | |
| 278 int before, | |
| 279 int after) { | |
| 280 RenderFrameHostImpl* rfh = | |
| 281 static_cast<RenderFrameHostImpl*>(GetFocusedFrame()); | |
| 282 if (rfh) | |
| 283 rfh->DeleteSurroundingText(before, after); | |
| 284 } | |
| 285 | |
| 286 void ImeAdapterAndroid::DeleteSurroundingTextInCodePoints( | |
| 287 JNIEnv*, | |
| 288 const JavaParamRef<jobject>&, | |
| 289 int before, | |
| 290 int after) { | |
| 291 RenderFrameHostImpl* rfh = | |
| 292 static_cast<RenderFrameHostImpl*>(GetFocusedFrame()); | |
| 293 if (rfh) | |
| 294 rfh->DeleteSurroundingTextInCodePoints(before, after); | |
| 295 } | |
| 296 | |
| 297 bool ImeAdapterAndroid::RequestTextInputStateUpdate( | |
| 298 JNIEnv* env, | |
| 299 const JavaParamRef<jobject>&) { | |
| 300 RenderWidgetHostImpl* rwhi = GetFocusedWidget(); | |
| 301 if (!rwhi) | |
| 302 return false; | |
| 303 rwhi->Send(new InputMsg_RequestTextInputStateUpdate(rwhi->GetRoutingID())); | |
| 304 return true; | |
| 305 } | |
| 306 | |
| 307 void ImeAdapterAndroid::RequestCursorUpdate( | |
| 308 JNIEnv* env, | |
| 309 const base::android::JavaParamRef<jobject>& obj, | |
| 310 bool immediate_request, | |
| 311 bool monitor_request) { | |
| 312 RenderWidgetHostImpl* rwhi = GetFocusedWidget(); | |
| 313 if (!rwhi) | |
| 314 return; | |
| 315 rwhi->Send(new InputMsg_RequestCompositionUpdates( | |
| 316 rwhi->GetRoutingID(), immediate_request, monitor_request)); | |
| 317 } | |
| 318 | |
| 319 void ImeAdapterAndroid::ResetImeAdapter(JNIEnv* env, | |
| 320 const JavaParamRef<jobject>&) { | |
| 321 java_ime_adapter_.reset(); | |
| 322 } | |
| 323 | |
| 324 RenderWidgetHostImpl* ImeAdapterAndroid::GetFocusedWidget() { | |
| 325 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
| 326 return rwhva_->GetFocusedWidget(); | |
| 327 } | |
| 328 | |
| 329 RenderFrameHost* ImeAdapterAndroid::GetFocusedFrame() { | |
| 330 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
| 331 // We get the focused frame from the WebContents of the page. Although | |
| 332 // |rwhva_->GetFocusedWidget()| does a similar thing, there is no direct way | |
| 333 // to get a RenderFrameHost from its RWH. | |
| 334 RenderWidgetHostImpl* rwh = | |
| 335 RenderWidgetHostImpl::From(rwhva_->GetRenderWidgetHost()); | |
| 336 if (!rwh || !rwh->delegate()) | |
| 337 return nullptr; | |
| 338 | |
| 339 if (auto* contents = rwh->delegate()->GetAsWebContents()) | |
| 340 return contents->GetFocusedFrame(); | |
| 341 | |
| 342 return nullptr; | |
| 343 } | |
| 344 | |
| 345 std::vector<blink::WebCompositionUnderline> | |
| 346 ImeAdapterAndroid::GetUnderlinesFromSpans( | |
| 347 JNIEnv* env, | |
| 348 const base::android::JavaParamRef<jobject>& obj, | |
| 349 const base::android::JavaParamRef<jobject>& text, | |
| 350 const base::string16& text16) { | |
| 351 std::vector<blink::WebCompositionUnderline> underlines; | |
| 352 // Iterate over spans in |text|, dispatch those that we care about (e.g., | |
| 353 // BackgroundColorSpan) to a matching callback (e.g., | |
| 354 // AppendBackgroundColorSpan()), and populate |underlines|. | |
| 355 Java_ImeAdapter_populateUnderlinesFromSpans( | |
| 356 env, obj, text, reinterpret_cast<jlong>(&underlines)); | |
| 357 | |
| 358 // Sort spans by |.startOffset|. | |
| 359 std::sort(underlines.begin(), underlines.end()); | |
| 360 | |
| 361 return underlines; | |
| 362 } | |
| 363 | |
| 364 } // namespace content | |
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Chromium Code Reviews
Issue 2752113005:
Let ImeAdapterAndroid have the same lifecycle as its Java peer (Closed)
