Pepper IME API for surrounding text retrieval.

content/renderer/render_view_impl.cc

 // Copyright (c) 2012 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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 3618 matching lines @@
 
   Send(new ViewHostMsg_UpdateState(
       routing_id_, page_id_, webkit_glue::HistoryItemToString(item)));
 }
 
 void RenderViewImpl::SyncSelectionIfRequired() {
   WebFrame* frame = webview()->focusedFrame();
   if (!frame)
     return;
 
-  size_t location, length;
-  if (!webview()->caretOrSelectionRange(&location, &length))
-    return;
-
   string16 text;
   size_t offset;
-  ui::Range range(location, location + length);
+  ui::Range range;
 
-  if (webview()->textInputType() != WebKit::WebTextInputTypeNone) {
-    // If current focused element is editable, we will send 100 more chars
-    // before and after selection. It is for input method surrounding text
-    // feature.
-    if (location > kExtraCharsBeforeAndAfterSelection)
-      offset = location - kExtraCharsBeforeAndAfterSelection;
-    else
-      offset = 0;
-    length = location + length - offset + kExtraCharsBeforeAndAfterSelection;
-    WebRange webrange = WebRange::fromDocumentRange(frame, offset, length);
-    if (!webrange.isNull())
-      text = WebRange::fromDocumentRange(frame, offset, length).toPlainText();
+  if (pepper_delegate_.IsPluginFocused()) {
+    pepper_delegate_.GetSurroundingText(&text, &range);
+    offset = 0; // Pepper API does not support offset reporting.
+    // TODO(kinaba): cut as needed.
   } else {
-    offset = location;
-    text = frame->selectionAsText();
-    // http://crbug.com/101435
-    // In some case, frame->selectionAsText() returned text's length is not
-    // equal to the length returned from webview()->caretOrSelectionRange().
-    // So we have to set the range according to text.length().
-    range.set_end(range.start() + text.length());
+    size_t location, length;
+    if (!webview()->caretOrSelectionRange(&location, &length))
+      return;
+
+    range = ui::Range(location, location + length);
+
+    if (webview()->textInputType() != WebKit::WebTextInputTypeNone) {
+      // If current focused element is editable, we will send 100 more chars
+      // before and after selection. It is for input method surrounding text
+      // feature.
+      if (location > kExtraCharsBeforeAndAfterSelection)
+        offset = location - kExtraCharsBeforeAndAfterSelection;
+      else
+        offset = 0;
+      length = location + length - offset + kExtraCharsBeforeAndAfterSelection;
+      WebRange webrange = WebRange::fromDocumentRange(frame, offset, length);
+      if (!webrange.isNull())
+        text = WebRange::fromDocumentRange(frame, offset, length).toPlainText();
+    } else {
+      offset = location;
+      text = frame->selectionAsText();
+      // http://crbug.com/101435
+      // In some case, frame->selectionAsText() returned text's length is not
+      // equal to the length returned from webview()->caretOrSelectionRange().
+      // So we have to set the range according to text.length().
+      range.set_end(range.start() + text.length());
+    }
   }
 
   // Sometimes we get repeated didChangeSelection calls from webkit when
   // the selection hasn't actually changed. We don't want to report these
   // because it will cause us to continually claim the X clipboard.
   if (selection_text_offset_ != offset ||
       selection_range_ != range ||
       selection_text_ != text) {
     selection_text_ = text;
     selection_text_offset_ = offset;
@@ skipping 1062 matching lines @@
   *rect = pepper_delegate_.GetCaretBounds();
   return true;
 }
 
 void RenderViewImpl::PpapiPluginCancelComposition() {
   Send(new ViewHostMsg_ImeCancelComposition(routing_id()));
   ui::Range range(ui::Range::InvalidRange());
   Send(new ViewHostMsg_ImeCompositionRangeChanged(routing_id(), range));
 }
 
+void RenderViewImpl::PpapiPluginSelectionChanged() {
+  SyncSelectionIfRequired();
+}
+
 void RenderViewImpl::OnImeSetComposition(
     const string16& text,
     const std::vector<WebKit::WebCompositionUnderline>& underlines,
     int selection_start,
     int selection_end) {
   if (pepper_delegate_.IsPluginFocused()) {
     // When a PPAPI plugin has focus, we bypass WebKit.
     pepper_delegate_.OnImeSetComposition(text,
                                          underlines,
                                          selection_start,
@@ skipping 385 matching lines @@
 bool RenderViewImpl::WebWidgetHandlesCompositorScheduling() const {
   return !!RenderThreadImpl::current()->compositor_thread();
 }
 
 void RenderViewImpl::OnJavaBridgeInit() {
   DCHECK(!java_bridge_dispatcher_.get());
 #if defined(ENABLE_JAVA_BRIDGE)
   java_bridge_dispatcher_.reset(new JavaBridgeDispatcher(this));
 #endif
 }