Ubuntu 安裝 Sublime text 解決搜狗輸入法問題

Ubuntu安裝Sublime text解決搜狗輸入法問題

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環境說明：Ubuntu 16.04 LTS版本，安裝Sublime text 3，需要解決不能使用搜狗輸入法的問題。

安裝Sublime text 很簡單，參照官網教程很容易裝上，但是會出現無法用搜狗輸入法輸入中文的問題。

1. 創建如下源文件

   cat >> ~/sublime_imfix.c <<EOF
   /*
   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); 
   }
   EOF
   

2. 安裝編譯環境

   sudo apt-get install build-essential
   sudo apt-get install libgtk2.0-dev
   

3. 編譯爲共享庫

   gcc -shared -o libsublime-imfix.so sublime_imfix.c  `pkg-config --libs --cflags gtk+-2.0` -fPIC
   

4. 測試效果

   LD_PRELOAD=./libsublime-imfix.so subl
   

5. 編輯Entry文件

   關鍵是修改三個Exec項值，注意實際路徑和英文雙引號問題。

   cd /usr/share/applications
   sudo vi sublime_text.desktop
   [Desktop Entry]
   Version=1.0
   Type=Application
   Name=Sublime Text
   GenericName=Text Editor
   Comment=Sophisticated text editor for code, markup and prose
   Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so /opt/sublime_text/sublime_text %F"
   Terminal=false
   MimeType=text/plain;
   Icon=sublime-text
   Categories=TextEditor;Development;
   StartupNotify=true
   Actions=Window;Document;
   
   [Desktop Action Window]
   Name=New Window
   Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text -n"
   OnlyShowIn=Unity;
   
   [Desktop Action Document]
   Name=New File
   Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text --command new_file"
   OnlyShowIn=Unity;
   

至此，軟件已能正常輸入中文，但還存在輸入框不跟隨的問題，目前沒找到合適辦法，湊合着用吧。希望Sublime text官方能做出優化。
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