Sublime Text实在太好用了，我都好久没有用过VIM了。
不知道从什么时候起，ubuntu下的中文输入突然不能用了(fcitx/ibus都无效)。在这里，我找到一个比较完美的解决方案：

• 安装编译依赖：
  [cc lang="bash"]sudo apt-get install libgtk2.0-d[/cc]

• 然后在任意位置以下面的内容新建文件sublime\_imfix.c:
  [cc lang="c"]
  /*
  sublime-imfix.c
  Use LD\_PRELOAD to interpose some function to fix sublime input method support for linux.
  By Cjacker Huang
  gcc -shared -o libsublime-imfix.so sublime\_imfix.c pkg-config --libs --cflags gtk+-2.0 -fPIC
  LD\_PRELOAD=./libsublime-imfix.so sublime\_text
  */

  include

  include

  typedef GdkSegment GdkRegionBox;
  struct \_GdkRegion
  {
  long size;
  long numRects;
  GdkRegionBox *rects;
  GdkRegionBox extents;
  };
  GtkIMContext *local\_context;
  void
  gdk\_region\_get\_clipbox (const GdkRegion *region,
  GdkRectangle *rectangle)
  {
  g\_return\_if\_fail (region != NULL);
  g\_return\_if\_fail (rectangle != NULL);
  rectangle->x = region->extents.x1;
  rectangle->y = region->extents.y1;
  rectangle->width = region->extents.x2 - region->extents.x1;
  rectangle->height = region->extents.y2 - region->extents.y1;
  GdkRectangle rect;
  rect.x = rectangle->x;
  rect.y = rectangle->y;
  rect.width = 0;
  rect.height = rectangle->height;
  //The caret width is 2;
  //Maybe sometimes we will make a mistake, but for most of the time, it should be the caret.
  if(rectangle->width == 2 && GTK\_IS\_IM\_CONTEXT(local\_context)) {
  gtk\_im\_context\_set\_cursor\_location(local\_context, rectangle);
  }
  }
  //this is needed, for example, if you input something in file dialog and return back the edit area
  //context will lost, so here we set it again.
  static GdkFilterReturn event\_filter (GdkXEvent *xevent, GdkEvent *event, gpointer im\_context)
  {
  XEvent *xev = (XEvent *)xevent;
  if(xev->type == KeyRelease && GTK\_IS\_IM\_CONTEXT(im\_context)) {
  GdkWindow * win = g\_object\_get\_data(G\_OBJECT(im\_context),"window");
  if(GDK\_IS\_WINDOW(win))
  gtk\_im\_context\_set\_client\_window(im\_context, win);
  }
  return GDK\_FILTER\_CONTINUE;
  }
  void gtk\_im\_context\_set\_client\_window (GtkIMContext *context,
  GdkWindow *window)
  {
  GtkIMContextClass *klass;
  g\_return\_if\_fail (GTK\_IS\_IM\_CONTEXT (context));
  klass = GTK\_IM\_CONTEXT\_GET\_CLASS (context);
  if (klass->set\_client\_window)
  klass->set\_client\_window (context, window);
  if(!GDK\_IS\_WINDOW (window))
  return;
  g\_object\_set\_data(G\_OBJECT(context),"window",window);
  int width = gdk\_window\_get\_width(window);
  int height = gdk\_window\_get\_height(window);
  if(width != 0 && height !=0) {
  gtk\_im\_context\_focus\_in(context);
  local\_context = context;
  }
  gdk\_window\_add\_filter (window, event\_filter, context);
  }
  [/cc]

• 编译这个文件：
  [cc lang="bash"]gcc -shared -o libsublime-imfix.so sublime\_imfix.c pkg-config --libs --cflags gtk+-2.0 -fPIC[/cc]
  如果一切顺利，会生成一个libsublime-imfix.so，把它移动到sublime text的安装目录,如:
  [cc lang="bash"]mv libsublime-imfix.so /opt/sublime\_text[/cc]

• 修改/usr/bin/subl的内容为:
  [cc lang="bash"]

  !/bin/sh

  sh -c "LD\_PRELOAD=/opt/sublime\_text/libsublime-imfix.so /opt/sublime\_text/sublime\_text '$@'"

  exec /opt/sublime\_text/sublime\_text "$@"

  [/cc]
  修改/usr/share/applications/sublime\_text.desktop内容为：
  [cc lang="bash"]
  [Desktop Entry]
  Version=1.0
  Type=Application
  Name=Sublime Text
  GenericName=Text Editor
  Comment=Sophisticated text editor for code, markup and prose
  Exec=/usr/bin/subl %F
  Terminal=false
  MimeType=text/plain;
  Icon=sublime-text
  Categories=TextEditor;Development;
  StartupNotify=true
  Actions=Window;Document;
  [Desktop Action Window]
  Name=New Window
  Exec=/usr/bin/subl -n
  OnlyShowIn=Unity;
  [Desktop Action Document]
  Name=New File
  Exec=/usr/bin/subl --command new\_file
  OnlyShowIn=Unity;[/cc]

   

  最后得到：
  
  之所以前面说“比较完美”，是因为如果以root权限运行:sudo subl something，输入法依然不可用。我估摸着大概是因为系统不允许以root身份加载那个so文件吧。

补丁作者的信息可以从C代码的头部注释中找到。