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ui/base/ime/composition_text_util_pango.cc

Index: ui/base/ime/composition_text_util_pango.cc
diff --git a/ui/base/ime/composition_text_util_pango.cc b/ui/base/ime/composition_text_util_pango.cc
deleted file mode 100644
index 325cdd61d924f630e01c708d42ff395faddb77c2..0000000000000000000000000000000000000000
--- a/ui/base/ime/composition_text_util_pango.cc
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright 2013 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 "ui/base/ime/composition_text_util_pango.h"
-
-#include <pango/pango-attributes.h>
-
-#include "base/basictypes.h"
-#include "base/i18n/char_iterator.h"
-#include "base/strings/string16.h"
-#include "base/strings/utf_string_conversions.h"
-#include "ui/base/ime/composition_text.h"
-
-namespace ui {
-
-void ExtractCompositionTextFromGtkPreedit(const gchar* utf8_text,
-                                          PangoAttrList* attrs,
-                                          int cursor_position,
-                                          CompositionText* composition) {
-  composition->Clear();
-  composition->text = base::UTF8ToUTF16(utf8_text);
-
-  if (composition->text.empty())
-    return;
-
-  // Gtk/Pango uses character index for cursor position and byte index for
-  // attribute range, but we use char16 offset for them. So we need to do
-  // conversion here.
-  std::vector<size_t> char16_offsets;
-  size_t length = composition->text.length();
-  base::i18n::UTF16CharIterator char_iterator(&composition->text);
-  do {
-    char16_offsets.push_back(char_iterator.array_pos());
-  } while (char_iterator.Advance());
-
-  // The text length in Unicode characters.
-  int char_length = static_cast<int>(char16_offsets.size());
-  // Make sure we can convert the value of |char_length| as well.
-  char16_offsets.push_back(length);
-
-  size_t cursor_offset =
-      char16_offsets[std::max(0, std::min(char_length, cursor_position))];
-
-  composition->selection = gfx::Range(cursor_offset);
-
-  if (attrs) {
-    int utf8_length = strlen(utf8_text);
-    PangoAttrIterator* iter = pango_attr_list_get_iterator(attrs);
-
-    // We only care about underline and background attributes and convert
-    // background attribute into selection if possible.
-    do {
-      gint start, end;
-      pango_attr_iterator_range(iter, &start, &end);
-
-      start = std::min(start, utf8_length);
-      end = std::min(end, utf8_length);
-      if (start >= end)
-        continue;
-
-      start = g_utf8_pointer_to_offset(utf8_text, utf8_text + start);
-      end = g_utf8_pointer_to_offset(utf8_text, utf8_text + end);
-
-      // Double check, in case |utf8_text| is not a valid utf-8 string.
-      start = std::min(start, char_length);
-      end = std::min(end, char_length);
-      if (start >= end)
-        continue;
-
-      PangoAttribute* background_attr =
-          pango_attr_iterator_get(iter, PANGO_ATTR_BACKGROUND);
-      PangoAttribute* underline_attr =
-          pango_attr_iterator_get(iter, PANGO_ATTR_UNDERLINE);
-
-      if (background_attr || underline_attr) {
-        // Use a black thin underline by default.
-        CompositionUnderline underline(char16_offsets[start],
-                                       char16_offsets[end],
-                                       SK_ColorBLACK,
-                                       false,
-                                       SK_ColorTRANSPARENT);
-
-        // Always use thick underline for a range with background color, which
-        // is usually the selection range.
-        if (background_attr) {
-          underline.thick = true;
-          // If the cursor is at start or end of this underline, then we treat
-          // it as the selection range as well, but make sure to set the cursor
-          // position to the selection end.
-          if (underline.start_offset == cursor_offset) {
-            composition->selection.set_start(underline.end_offset);
-            composition->selection.set_end(cursor_offset);
-          } else if (underline.end_offset == cursor_offset) {
-            composition->selection.set_start(underline.start_offset);
-            composition->selection.set_end(cursor_offset);
-          }
-        }
-        if (underline_attr) {
-          int type = reinterpret_cast<PangoAttrInt*>(underline_attr)->value;
-          if (type == PANGO_UNDERLINE_DOUBLE)
-            underline.thick = true;
-          else if (type == PANGO_UNDERLINE_ERROR)
-            underline.color = SK_ColorRED;
-        }
-        composition->underlines.push_back(underline);
-      }
-    } while (pango_attr_iterator_next(iter));
-    pango_attr_iterator_destroy(iter);
-  }
-
-  // Use a black thin underline by default.
-  if (composition->underlines.empty()) {
-    composition->underlines.push_back(CompositionUnderline(
-        0, length, SK_ColorBLACK, false, SK_ColorTRANSPARENT));
-  }
-}
-
-}  // namespace ui