src/content/browser/renderer_host/text_input_client_message_filter.mm

   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/text_input_client_message_filter.h"
   6
   7 #include "base/strings/string16.h"
   8 #include "content/browser/renderer_host/render_view_host_impl.h"
   9 #include "content/browser/renderer_host/text_input_client_mac.h"
  10 #include "content/common/text_input_client_messages.h"
  11 #include "content/public/browser/render_widget_host_view.h"
  12 #include "ipc/ipc_message_macros.h"
  13 #include "ui/gfx/range/range.h"
  14 #include "ui/gfx/rect.h"
  15
  16 namespace content {
  17
  18 TextInputClientMessageFilter::TextInputClientMessageFilter(int child_id)
  19     : BrowserMessageFilter(),
  20       child_process_id_(child_id) {
  21 }
  22
  23 bool TextInputClientMessageFilter::OnMessageReceived(
  24     const IPC::Message& message,
  25     bool* message_was_ok) {
  26   bool handled = true;
  27   IPC_BEGIN_MESSAGE_MAP_EX(TextInputClientMessageFilter, message,
  28       *message_was_ok)
  29     IPC_MESSAGE_HANDLER(TextInputClientReplyMsg_GotCharacterIndexForPoint,
  30                         OnGotCharacterIndexForPoint)
  31     IPC_MESSAGE_HANDLER(TextInputClientReplyMsg_GotFirstRectForRange,
  32                         OnGotFirstRectForRange)
  33     IPC_MESSAGE_HANDLER(TextInputClientReplyMsg_GotStringForRange,
  34                         OnGotStringFromRange)
  35     IPC_MESSAGE_UNHANDLED(handled = false)
  36   IPC_END_MESSAGE_MAP_EX()
  37   return handled;
  38 }
  39
  40 TextInputClientMessageFilter::~TextInputClientMessageFilter() {}
  41
  42 void TextInputClientMessageFilter::OnGotCharacterIndexForPoint(size_t index) {
  43   TextInputClientMac* service = TextInputClientMac::GetInstance();
  44   // |index| could be WTF::notFound (-1) and its value is different from
  45   // NSNotFound so we need to convert it.
  46   if (index == static_cast<size_t>(-1)) {
  47     index = NSNotFound;
  48   }
  49   service->SetCharacterIndexAndSignal(index);
  50 }
  51
  52 void TextInputClientMessageFilter::OnGotFirstRectForRange(
  53     const gfx::Rect& rect) {
  54   TextInputClientMac* service = TextInputClientMac::GetInstance();
  55   service->SetFirstRectAndSignal(NSRectFromCGRect(rect.ToCGRect()));
  56 }
  57
  58 void TextInputClientMessageFilter::OnGotStringFromRange(
  59     const mac::AttributedStringCoder::EncodedString& encoded_string) {
  60   TextInputClientMac* service = TextInputClientMac::GetInstance();
  61   NSAttributedString* string =
  62       mac::AttributedStringCoder::Decode(&encoded_string);
  63   if (![string length])
  64     string = nil;
  65   service->SetSubstringAndSignal(string);
  66 }
  67
  68 }  // namespace content