/*

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 subl

*/

#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 = ;

  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 ==  && 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 !=  && height !=) {

    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

sudo zypper in gtk-devel gtk2-devel gtk3-devel

#!/usr/bin/env xdg-open

[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=/opt/sublime_text/Icon/sublime-text.png

Categories=TextEditor;Development;

StartupNotify=true

Actions=Window;Document;

[Desktop Action Window]

Name=New Window

Exec=env LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so /opt/sublime_text/sublime_text -n

OnlyShowIn=Unity;

[Desktop Action Document]

Name=New File

Exec=env LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so /opt/sublime_text/sssublime_text --command new_file

OnlyShowIn=Unity;

#!/bin/bash

bash -c 'LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so /opt/sublime_text/sublime_text'