解决 Ubuntu 下 Sublime Text 无法输入中文的问题

解决 Ubuntu 下 Sublime Text 无法输入中文的问题

1. 安装依赖库

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

2. 编译共享库

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

sublime_imfix.c内容如下：

/*
sublime-imfix.c
Use LD_PRELOAD to interpose some function to fix sublime input method support for linux.

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 = 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);
}

3. 移动共享库到Sublime Text 3安装目录

sudo mv libsublime-imfix.so /opt/sublime_text

4. 修改启动脚本

sudo vim /usr/bin/subl

subl内容如下：

#!/bin/sh
export LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so:$LD_PRELOAD
exec /opt/sublime_text/sublime_text "$@"

5. 修改/usr/share/appliations/sublime_text.desktop

sudo sed -i 's//opt/sublime_text/sublime_text/subl/g' /usr/share/applications/sublime_text.desktop

6. 替换本地的sublime_text.desktop

cp /usr/share/applications/sublime_text.desktop ~/.local/share/applications/sublime_text.desktop