Get surrounding text from webkit. This CL is for sharing code only.

content/renderer/render_widget.cc

 // Copyright (c) 2011 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_widget.h"
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 65 matching lines @@
       num_swapbuffers_complete_pending_(0),
       did_show_(false),
       is_hidden_(false),
       needs_repainting_on_restore_(false),
       has_focus_(false),
       handling_input_event_(false),
       closing_(false),
       is_swapped_out_(false),
       input_method_is_active_(false),
       text_input_type_(ui::TEXT_INPUT_TYPE_NONE),
+      surrounding_(),
+      cursor_(0),
+      anchor_(0),
       can_compose_inline_(true),
       popup_type_(popup_type),
       pending_window_rect_count_(0),
       suppress_next_char_events_(false),
       is_accelerated_compositing_active_(false),
       animation_update_pending_(false),
       animation_task_posted_(false),
       invalidation_task_posted_(false) {
   RenderProcess::current()->AddRefProcess();
   DCHECK(render_thread_);
@@ skipping 1187 matching lines @@
   next_paint_flags_ |= ViewHostMsg_UpdateRect_Flags::IS_RESTORE_ACK;
 }
 
 void RenderWidget::set_next_paint_is_repaint_ack() {
   next_paint_flags_ |= ViewHostMsg_UpdateRect_Flags::IS_REPAINT_ACK;
 }
 
 void RenderWidget::UpdateInputMethod() {
   if (!input_method_is_active_)
     return;
+  
+  ViewHostMsg_ImeUpdateTextInputState_Params params;
 
-  ui::TextInputType new_type = GetTextInputType();
-  bool new_can_compose_inline = CanComposeInline();
-  WebRect new_caret_bounds;
+  params.text_input_type = GetTextInputType();
+  params.can_compose_inline = CanComposeInline();
 
   if (webwidget_)
-   new_caret_bounds = webwidget_->caretOrSelectionBounds();
+   params.caret_bounds = webwidget_->caretOrSelectionBounds();
+
+  params.cursor = 0;
+  params.anchor = 0;
+
+
+  // Do not get the surrounding, if the text input type is None or Password.
+  if (webwidget_ &&
+      params.text_input_type != ui::TEXT_INPUT_TYPE_NONE &&
+      params.text_input_type != ui::TEXT_INPUT_TYPE_PASSWORD) {
+    WebKit::WebString text;
+    webwidget_->surroundingTextWithSelection(
+        text, params.cursor, params.anchor);
+    params.surrounding = text;
+    LOG(ERROR) << "\n"
+      << "\tsurrounding = " << params.surrounding
+      << "\tcursor =" << params.cursor
+      << "\tanchor =" << params.anchor;
+  }
 
   // Only sends text input type and caret bounds to the browser process if they
   // are changed.
-  if (text_input_type_ != new_type || caret_bounds_ != new_caret_bounds ||
-      can_compose_inline_ != new_can_compose_inline) {
-    text_input_type_ = new_type;
-    can_compose_inline_ = new_can_compose_inline;
-    caret_bounds_ = new_caret_bounds;
+  if (text_input_type_ != params.text_input_type ||
+      caret_bounds_ != params.caret_bounds ||
+      surrounding_ != params.surrounding ||
+      cursor_ != params.cursor || anchor_ != params.anchor ||
+      can_compose_inline_ != params.can_compose_inline) {
+    text_input_type_ = params.text_input_type;
+    surrounding_ = params.surrounding;
+    cursor_ = params.cursor;
+    anchor_ = params.anchor;
+    can_compose_inline_ = params.can_compose_inline;
+    caret_bounds_ = params.caret_bounds;
     Send(new ViewHostMsg_ImeUpdateTextInputState(
-        routing_id(), new_type, new_can_compose_inline, new_caret_bounds));
+        routing_id(), params));
   }
 }
 
 COMPILE_ASSERT(int(WebKit::WebTextInputTypeNone) == \
                int(ui::TEXT_INPUT_TYPE_NONE), mismatching_enums);
 COMPILE_ASSERT(int(WebKit::WebTextInputTypeText) == \
                int(ui::TEXT_INPUT_TYPE_TEXT), mismatching_enums);
 COMPILE_ASSERT(int(WebKit::WebTextInputTypePassword) == \
                int(ui::TEXT_INPUT_TYPE_PASSWORD), mismatching_enums);
 COMPILE_ASSERT(int(WebKit::WebTextInputTypeSearch) == \
@@ skipping 71 matching lines @@
 
 void RenderWidget::CleanupWindowInPluginMoves(gfx::PluginWindowHandle window) {
   for (WebPluginGeometryVector::iterator i = plugin_window_moves_.begin();
        i != plugin_window_moves_.end(); ++i) {
     if (i->window == window) {
       plugin_window_moves_.erase(i);
       break;
     }
   }
 }