在Ubuntu 14.04 64bit上为Sublime text 3安装搜狗拼音输入法

Sublime text 3不支持中文输入法，下面是我结合网上的各种资料摸索实践了一遍，为Sublime text 3成功添加了搜狗拼音输入法，特此记录以备参考。

前提条件：

事先安装并配置好搜狗拼音法和Sublime text 3编辑器，参考本博客相关文章。

1.安装相关依赖库
sudo apt-get install build-essential libgtk2.0-dev

2.编译相关动态库
编译如下sublime-imfix.c文件，

/** sublime-imfix.c* Use LD_PRELOAD to interpose some function to fix sublime input method support for linux.* By Cjacker Huang <jianzhong.huang at i-soft.com.cn> *** 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 <gtk/gtk.h>
#include <gdk/gdkx.h>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);
}

gcc -shared -o libsublime-imfix.so sublime_imfix.c  `pkg-config --libs --cflags gtk+-2.0` -fPIC
得到libsublime-imfix.so共享库，复制到Sublime text 3的安装目录(通常是/opt/sublime_text/)下
sudo cp libsublime-imfix.so /opt/sublime_text/
同时在终端中输入如下命令, subl是安装好SublimeText 3后的程序启动命令：
    LD_PRELOAD=./libsublime-imfix.so subl
如果一切正常，在启动之后，搜狗输入法就能可以输入了，但是下面还需要做相关的配置。
3.编辑启动项
sudo vim /usr/bin/subl
修改/usr/bin/subl文件，将：
sudo gedit /usr/bin/subl
改为
LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text "$@"
保存，在命令行执行运行subl(注意不是sudo subl)，检查看是否可以正常使用搜狗输入法, 正常情况下会成功。
为了能在Unity上的Sublime text 3图标打开时也能使用，下面继续修改文件sublime_text.desktop的内容
sudo vim /usr/share/applications/sublime-text.desktop
修改如下三处地方
将[Desktop Entry]中的字符串
Exec=/opt/sublime_text/sublime_text %F
修改为
Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text %F"
将[Desktop Action Window]中的字符串
Exec=/opt/sublime_text/sublime_text -n
修改为
Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text -n"
将[Desktop Action Document]中的字符串
Exec=/opt/sublime_text/sublime_text --command new_file
修改为
Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text --command new_file"

使用vimdiff比较发现，它和/opt/sublime_text/applications/sublime_text.desktop几乎相同，不过前者主要是负责unity图标的，但这样就可以正常使用了。
opt/sublime_text/目录下的sublime-text.desktop可以修改，也可不修改。但是如果只修改后者，仍将无法使用搜狗拼音输入法。

4.验证

正常情况下, 如截图所示

参考文献

[1].http://blog.csdn.net/cywosp/article/details/32350899 兼容搜狗拼音输入法
[2].http://jingyan.baidu.com/article/da1091fbd695e2027849d6f6.html
[3].http://www.jb51.net/os/Ubuntu/193411.html   总结得很好

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