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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/android/ime_adapter_android.h" | |
| 6 | |
| 7 #include <android/input.h> | |
| 8 #include <algorithm> | |
| 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/interstitial_page_impl.h" | |
| 18 #include "content/browser/frame_host/render_frame_host_impl.h" | |
| 19 #include "content/browser/renderer_host/render_view_host_delegate.h" | |
| 20 #include "content/browser/renderer_host/render_widget_host_impl.h" | |
| 21 #include "content/browser/renderer_host/render_widget_host_view_android.h" | |
| 22 #include "content/browser/web_contents/web_contents_impl.h" | |
| 23 #include "content/common/input_messages.h" | |
| 24 #include "content/common/view_messages.h" | |
| 25 #include "content/public/browser/browser_thread.h" | |
| 26 #include "content/public/browser/native_web_keyboard_event.h" | |
| 27 #include "content/public/browser/web_contents.h" | |
| 28 #include "jni/ImeAdapter_jni.h" | |
| 29 #include "third_party/WebKit/public/platform/WebInputEvent.h" | |
| 30 #include "third_party/WebKit/public/platform/WebTextInputType.h" | |
| 31 #include "third_party/WebKit/public/web/WebCompositionUnderline.h" | |
| 32 | |
| 33 using base::android::AttachCurrentThread; | |
| 34 using base::android::ConvertJavaStringToUTF16; | |
| 35 using base::android::JavaParamRef; | |
| 36 using base::android::ScopedJavaLocalRef; | |
| 37 | |
| 38 namespace content { | |
| 39 namespace { | |
| 40 | |
| 41 // Maps a java KeyEvent into a NativeWebKeyboardEvent. | |
| 42 // |java_key_event| is used to maintain a globalref for KeyEvent. | |
| 43 // |type| will determine the WebInputEvent type. | |
| 44 // type, |modifiers|, |time_ms|, |key_code|, |unicode_char| is used to create | |
| 45 // WebKeyboardEvent. |key_code| is also needed ad need to treat the enter key | |
| 46 // as a key press of character \r. | |
| 47 NativeWebKeyboardEvent NativeWebKeyboardEventFromKeyEvent( | |
| 48 JNIEnv* env, | |
| 49 const base::android::JavaRef<jobject>& java_key_event, | |
| 50 int type, | |
| 51 int modifiers, | |
| 52 jlong time_ms, | |
| 53 int key_code, | |
| 54 int scan_code, | |
| 55 bool is_system_key, | |
| 56 int unicode_char) { | |
| 57 return NativeWebKeyboardEvent(env, java_key_event, | |
| 58 static_cast<blink::WebInputEvent::Type>(type), | |
| 59 modifiers, time_ms / 1000.0, key_code, | |
| 60 scan_code, unicode_char, is_system_key); | |
| 61 } | |
| 62 | |
| 63 } // anonymous namespace | |
| 64 | |
| 65 bool RegisterImeAdapter(JNIEnv* env) { | |
| 66 return RegisterNativesImpl(env); | |
| 67 } | |
| 68 | |
| 69 jlong Init(JNIEnv* env, | |
| 70 const JavaParamRef<jobject>& obj, | |
| 71 const JavaParamRef<jobject>& jweb_contents) { | |
| 72 WebContents* web_contents = WebContents::FromJavaWebContents(jweb_contents); | |
| 73 DCHECK(web_contents); | |
| 74 return reinterpret_cast<intptr_t>( | |
| 75 new ImeAdapterAndroid(env, obj, web_contents)); | |
| 76 } | |
| 77 | |
| 78 // Callback from Java to convert BackgroundColorSpan data to a | |
| 79 // blink::WebCompositionUnderline instance, and append it to |underlines_ptr|. | |
| 80 void AppendBackgroundColorSpan(JNIEnv*, | |
| 81 const JavaParamRef<jclass>&, | |
| 82 jlong underlines_ptr, | |
| 83 jint start, | |
| 84 jint end, | |
| 85 jint background_color) { | |
| 86 DCHECK_GE(start, 0); | |
| 87 DCHECK_GE(end, 0); | |
| 88 // Do not check |background_color|. | |
| 89 std::vector<blink::WebCompositionUnderline>* underlines = | |
| 90 reinterpret_cast<std::vector<blink::WebCompositionUnderline>*>( | |
| 91 underlines_ptr); | |
| 92 underlines->push_back(blink::WebCompositionUnderline( | |
| 93 static_cast<unsigned>(start), static_cast<unsigned>(end), | |
| 94 SK_ColorTRANSPARENT, false, static_cast<unsigned>(background_color))); | |
| 95 } | |
| 96 | |
| 97 // Callback from Java to convert UnderlineSpan data to a | |
| 98 // blink::WebCompositionUnderline instance, and append it to |underlines_ptr|. | |
| 99 void AppendUnderlineSpan(JNIEnv*, | |
| 100 const JavaParamRef<jclass>&, | |
| 101 jlong underlines_ptr, | |
| 102 jint start, | |
| 103 jint end) { | |
| 104 DCHECK_GE(start, 0); | |
| 105 DCHECK_GE(end, 0); | |
| 106 std::vector<blink::WebCompositionUnderline>* underlines = | |
| 107 reinterpret_cast<std::vector<blink::WebCompositionUnderline>*>( | |
| 108 underlines_ptr); | |
| 109 underlines->push_back(blink::WebCompositionUnderline( | |
| 110 static_cast<unsigned>(start), static_cast<unsigned>(end), SK_ColorBLACK, | |
| 111 false, SK_ColorTRANSPARENT)); | |
| 112 } | |
| 113 | |
| 114 ImeAdapterAndroid::ImeAdapterAndroid(JNIEnv* env, | |
| 115 const JavaParamRef<jobject>& obj, | |
| 116 WebContents* web_contents) | |
| 117 : WebContentsObserver(web_contents), rwhva_(nullptr) { | |
| 118 java_ime_adapter_ = JavaObjectWeakGlobalRef(env, obj); | |
| 119 } | |
| 120 | |
| 121 ImeAdapterAndroid::~ImeAdapterAndroid() { | |
| 122 JNIEnv* env = AttachCurrentThread(); | |
| 123 ScopedJavaLocalRef<jobject> obj = java_ime_adapter_.get(env); | |
| 124 if (!obj.is_null()) | |
| 125 Java_ImeAdapter_destroy(env, obj); | |
| 126 | |
| 127 UpdateRenderProcessConnection(nullptr); | |
| 128 } | |
| 129 | |
| 130 RenderWidgetHostViewAndroid* ImeAdapterAndroid::GetRenderWidgetHostViewAndroid() | |
| 131 const { | |
| 132 RenderWidgetHostView* rwhv = web_contents()->GetRenderWidgetHostView(); | |
| 133 WebContentsImpl* web_contents_impl = | |
| 134 static_cast<WebContentsImpl*>(web_contents()); | |
| 135 if (web_contents_impl->ShowingInterstitialPage()) { | |
| 136 rwhv = web_contents_impl->GetInterstitialPage() | |
| 137 ->GetMainFrame() | |
| 138 ->GetRenderViewHost() | |
| 139 ->GetWidget() | |
| 140 ->GetView(); | |
| 141 } | |
| 142 return static_cast<RenderWidgetHostViewAndroid*>(rwhv); | |
| 143 } | |
| 144 | |
| 145 void ImeAdapterAndroid::RenderViewReady() { | |
| 146 UpdateRenderProcessConnection(GetRenderWidgetHostViewAndroid()); | |
| 147 | |
| 148 JNIEnv* env = AttachCurrentThread(); | |
| 149 ScopedJavaLocalRef<jobject> obj = java_ime_adapter_.get(env); | |
| 150 if (!obj.is_null()) | |
| 151 Java_ImeAdapter_onConnectedToRenderProcess(env, obj); | |
| 152 } | |
| 153 | |
| 154 void ImeAdapterAndroid::RenderViewHostChanged(RenderViewHost* old_host, | |
| 155 RenderViewHost* new_host) { | |
| 156 if (new_host) { | |
| 157 UpdateRenderProcessConnection(static_cast<RenderWidgetHostViewAndroid*>( | |
| 158 new_host->GetWidget()->GetView())); | |
| 159 } else { | |
| 160 UpdateRenderProcessConnection(nullptr); | |
| 161 } | |
| 162 } | |
| 163 | |
| 164 void ImeAdapterAndroid::DidAttachInterstitialPage() { | |
| 165 UpdateRenderProcessConnection(GetRenderWidgetHostViewAndroid()); | |
| 166 } | |
| 167 | |
| 168 void ImeAdapterAndroid::DidDetachInterstitialPage() { | |
| 169 UpdateRenderProcessConnection(GetRenderWidgetHostViewAndroid()); | |
| 170 } | |
| 171 | |
| 172 void ImeAdapterAndroid::WebContentsDestroyed() { | |
| 173 delete this; | |
| 174 } | |
| 175 | |
| 176 void ImeAdapterAndroid::UpdateRenderProcessConnection( | |
| 177 RenderWidgetHostViewAndroid* new_rwhva) { | |
| 178 if (rwhva_ == new_rwhva) | |
| 179 return; | |
| 180 if (rwhva_) | |
| 181 rwhva_->set_ime_adapter(nullptr); | |
| 182 if (new_rwhva) | |
| 183 new_rwhva->set_ime_adapter(this); | |
| 184 rwhva_ = new_rwhva; | |
| 185 } | |
| 186 | |
| 187 bool ImeAdapterAndroid::SendKeyEvent( | |
| 188 JNIEnv* env, | |
| 189 const JavaParamRef<jobject>&, | |
| 190 const JavaParamRef<jobject>& original_key_event, | |
| 191 int type, | |
| 192 int modifiers, | |
| 193 jlong time_ms, | |
| 194 int key_code, | |
| 195 int scan_code, | |
| 196 bool is_system_key, | |
| 197 int unicode_char) { | |
| 198 if (!rwhva_) | |
| 199 return false; | |
| 200 NativeWebKeyboardEvent event = NativeWebKeyboardEventFromKeyEvent( | |
| 201 env, original_key_event, type, modifiers, time_ms, key_code, scan_code, | |
| 202 is_system_key, unicode_char); | |
| 203 rwhva_->SendKeyEvent(event); | |
| 204 return true; | |
| 205 } | |
| 206 | |
| 207 void ImeAdapterAndroid::SetComposingText(JNIEnv* env, | |
| 208 const JavaParamRef<jobject>& obj, | |
| 209 const JavaParamRef<jobject>& text, | |
| 210 const JavaParamRef<jstring>& text_str, | |
| 211 int relative_cursor_pos) { | |
| 212 RenderWidgetHostImpl* rwhi = GetFocusedWidget(); | |
| 213 if (!rwhi) | |
| 214 return; | |
| 215 | |
| 216 base::string16 text16 = ConvertJavaStringToUTF16(env, text_str); | |
| 217 | |
| 218 std::vector<blink::WebCompositionUnderline> underlines = | |
| 219 GetUnderlinesFromSpans(env, obj, text, text16); | |
| 220 | |
| 221 // Default to plain underline if we didn't find any span that we care about. | |
| 222 if (underlines.empty()) { | |
| 223 underlines.push_back(blink::WebCompositionUnderline( | |
| 224 0, text16.length(), SK_ColorBLACK, false, SK_ColorTRANSPARENT)); | |
| 225 } | |
| 226 | |
| 227 // relative_cursor_pos is as described in the Android API for | |
| 228 // InputConnection#setComposingText, whereas the parameters for | |
| 229 // ImeSetComposition are relative to the start of the composition. | |
| 230 if (relative_cursor_pos > 0) | |
| 231 relative_cursor_pos = text16.length() + relative_cursor_pos - 1; | |
| 232 | |
| 233 rwhi->ImeSetComposition(text16, underlines, gfx::Range::InvalidRange(), | |
| 234 relative_cursor_pos, relative_cursor_pos); | |
| 235 } | |
| 236 | |
| 237 void ImeAdapterAndroid::CommitText(JNIEnv* env, | |
| 238 const JavaParamRef<jobject>& obj, | |
| 239 const JavaParamRef<jobject>& text, | |
| 240 const JavaParamRef<jstring>& text_str, | |
| 241 int relative_cursor_pos) { | |
| 242 RenderWidgetHostImpl* rwhi = GetFocusedWidget(); | |
| 243 if (!rwhi) | |
| 244 return; | |
| 245 | |
| 246 base::string16 text16 = ConvertJavaStringToUTF16(env, text_str); | |
| 247 | |
| 248 std::vector<blink::WebCompositionUnderline> underlines = | |
| 249 GetUnderlinesFromSpans(env, obj, text, text16); | |
| 250 | |
| 251 // relative_cursor_pos is as described in the Android API for | |
| 252 // InputConnection#commitText, whereas the parameters for | |
| 253 // ImeConfirmComposition are relative to the end of the composition. | |
| 254 if (relative_cursor_pos > 0) | |
| 255 relative_cursor_pos--; | |
| 256 else | |
| 257 relative_cursor_pos -= text16.length(); | |
| 258 | |
| 259 rwhi->ImeCommitText(text16, underlines, gfx::Range::InvalidRange(), | |
| 260 relative_cursor_pos); | |
| 261 } | |
| 262 | |
| 263 void ImeAdapterAndroid::FinishComposingText(JNIEnv* env, | |
| 264 const JavaParamRef<jobject>&) { | |
| 265 RenderWidgetHostImpl* rwhi = GetFocusedWidget(); | |
| 266 if (!rwhi) | |
| 267 return; | |
| 268 | |
| 269 rwhi->ImeFinishComposingText(true); | |
| 270 } | |
| 271 | |
| 272 void ImeAdapterAndroid::CancelComposition() { | |
| 273 JNIEnv* env = AttachCurrentThread(); | |
| 274 ScopedJavaLocalRef<jobject> obj = java_ime_adapter_.get(env); | |
| 275 if (!obj.is_null()) | |
| 276 Java_ImeAdapter_cancelComposition(env, obj); | |
| 277 } | |
| 278 | |
| 279 void ImeAdapterAndroid::FocusedNodeChanged(bool is_editable_node) { | |
| 280 JNIEnv* env = AttachCurrentThread(); | |
| 281 ScopedJavaLocalRef<jobject> obj = java_ime_adapter_.get(env); | |
| 282 if (!obj.is_null()) { | |
| 283 Java_ImeAdapter_focusedNodeChanged(env, obj, is_editable_node); | |
| 284 } | |
| 285 } | |
| 286 | |
| 287 void ImeAdapterAndroid::SetEditableSelectionOffsets( | |
| 288 JNIEnv*, | |
| 289 const JavaParamRef<jobject>&, | |
| 290 int start, | |
| 291 int end) { | |
| 292 RenderFrameHost* rfh = GetFocusedFrame(); | |
| 293 if (!rfh) | |
| 294 return; | |
| 295 | |
| 296 rfh->Send(new InputMsg_SetEditableSelectionOffsets(rfh->GetRoutingID(), start, | |
| 297 end)); | |
| 298 } | |
| 299 | |
| 300 void ImeAdapterAndroid::SetCharacterBounds( | |
| 301 const std::vector<gfx::RectF>& character_bounds) { | |
| 302 JNIEnv* env = AttachCurrentThread(); | |
| 303 ScopedJavaLocalRef<jobject> obj = java_ime_adapter_.get(env); | |
| 304 if (obj.is_null()) | |
| 305 return; | |
| 306 | |
| 307 const size_t coordinates_array_size = character_bounds.size() * 4; | |
| 308 std::unique_ptr<float[]> coordinates_array(new float[coordinates_array_size]); | |
| 309 for (size_t i = 0; i < character_bounds.size(); ++i) { | |
| 310 const gfx::RectF& rect = character_bounds[i]; | |
| 311 const size_t coordinates_array_index = i * 4; | |
| 312 coordinates_array[coordinates_array_index + 0] = rect.x(); | |
| 313 coordinates_array[coordinates_array_index + 1] = rect.y(); | |
| 314 coordinates_array[coordinates_array_index + 2] = rect.right(); | |
| 315 coordinates_array[coordinates_array_index + 3] = rect.bottom(); | |
| 316 } | |
| 317 Java_ImeAdapter_setCharacterBounds( | |
| 318 env, obj, | |
| 319 base::android::ToJavaFloatArray(env, coordinates_array.get(), | |
| 320 coordinates_array_size)); | |
| 321 } | |
| 322 | |
| 323 void ImeAdapterAndroid::SetComposingRegion(JNIEnv*, | |
| 324 const JavaParamRef<jobject>&, | |
| 325 int start, | |
| 326 int end) { | |
| 327 RenderFrameHost* rfh = GetFocusedFrame(); | |
| 328 if (!rfh) | |
| 329 return; | |
| 330 | |
| 331 std::vector<blink::WebCompositionUnderline> underlines; | |
| 332 underlines.push_back(blink::WebCompositionUnderline( | |
| 333 0, end - start, SK_ColorBLACK, false, SK_ColorTRANSPARENT)); | |
| 334 | |
| 335 rfh->Send(new InputMsg_SetCompositionFromExistingText( | |
| 336 rfh->GetRoutingID(), start, end, underlines)); | |
| 337 } | |
| 338 | |
| 339 void ImeAdapterAndroid::DeleteSurroundingText(JNIEnv*, | |
| 340 const JavaParamRef<jobject>&, | |
| 341 int before, | |
| 342 int after) { | |
| 343 RenderFrameHostImpl* rfh = | |
| 344 static_cast<RenderFrameHostImpl*>(GetFocusedFrame()); | |
| 345 if (rfh) | |
| 346 rfh->DeleteSurroundingText(before, after); | |
| 347 } | |
| 348 | |
| 349 void ImeAdapterAndroid::DeleteSurroundingTextInCodePoints( | |
| 350 JNIEnv*, | |
| 351 const JavaParamRef<jobject>&, | |
| 352 int before, | |
| 353 int after) { | |
| 354 RenderFrameHostImpl* rfh = | |
| 355 static_cast<RenderFrameHostImpl*>(GetFocusedFrame()); | |
| 356 if (rfh) | |
| 357 rfh->DeleteSurroundingTextInCodePoints(before, after); | |
| 358 } | |
| 359 | |
| 360 bool ImeAdapterAndroid::RequestTextInputStateUpdate( | |
| 361 JNIEnv* env, | |
| 362 const JavaParamRef<jobject>&) { | |
| 363 RenderWidgetHostImpl* rwhi = GetFocusedWidget(); | |
| 364 if (!rwhi) | |
| 365 return false; | |
| 366 rwhi->Send(new InputMsg_RequestTextInputStateUpdate(rwhi->GetRoutingID())); | |
| 367 return true; | |
| 368 } | |
| 369 | |
| 370 void ImeAdapterAndroid::RequestCursorUpdate( | |
| 371 JNIEnv* env, | |
| 372 const base::android::JavaParamRef<jobject>& obj, | |
| 373 bool immediate_request, | |
| 374 bool monitor_request) { | |
| 375 RenderWidgetHostImpl* rwhi = GetFocusedWidget(); | |
| 376 if (!rwhi) | |
| 377 return; | |
| 378 rwhi->Send(new InputMsg_RequestCompositionUpdates( | |
| 379 rwhi->GetRoutingID(), immediate_request, monitor_request)); | |
| 380 } | |
| 381 | |
| 382 RenderWidgetHostImpl* ImeAdapterAndroid::GetFocusedWidget() { | |
| 383 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
| 384 return rwhva_ ? rwhva_->GetFocusedWidget() : nullptr; | |
| 385 } | |
| 386 | |
| 387 RenderFrameHost* ImeAdapterAndroid::GetFocusedFrame() { | |
| 388 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
| 389 // We get the focused frame from the WebContents of the page. Although | |
| 390 // |rwhva_->GetFocusedWidget()| does a similar thing, there is no direct way | |
| 391 // to get a RenderFrameHost from its RWH. | |
| 392 if (!rwhva_) | |
| 393 return nullptr; | |
| 394 RenderWidgetHostImpl* rwh = | |
| 395 RenderWidgetHostImpl::From(rwhva_->GetRenderWidgetHost()); | |
| 396 if (!rwh || !rwh->delegate()) | |
| 397 return nullptr; | |
| 398 | |
| 399 if (auto* contents = rwh->delegate()->GetAsWebContents()) | |
| 400 return contents->GetFocusedFrame(); | |
| 401 | |
| 402 return nullptr; | |
| 403 } | |
| 404 | |
| 405 std::vector<blink::WebCompositionUnderline> | |
| 406 ImeAdapterAndroid::GetUnderlinesFromSpans( | |
| 407 JNIEnv* env, | |
| 408 const base::android::JavaParamRef<jobject>& obj, | |
| 409 const base::android::JavaParamRef<jobject>& text, | |
| 410 const base::string16& text16) { | |
| 411 std::vector<blink::WebCompositionUnderline> underlines; | |
| 412 // Iterate over spans in |text|, dispatch those that we care about (e.g., | |
| 413 // BackgroundColorSpan) to a matching callback (e.g., | |
| 414 // AppendBackgroundColorSpan()), and populate |underlines|. | |
| 415 Java_ImeAdapter_populateUnderlinesFromSpans( | |
| 416 env, obj, text, reinterpret_cast<jlong>(&underlines)); | |
| 417 | |
| 418 // Sort spans by |.startOffset|. | |
| 419 std::sort(underlines.begin(), underlines.end()); | |
| 420 | |
| 421 return underlines; | |
| 422 } | |
| 423 | |
| 424 } // namespace content | |
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Chromium Code Reviews
Issue 2785543003:
Revert of Let ImeAdapterAndroid have the same lifecycle as its Java peer (Closed)
