[gnome-shell/wip/carlosg/osk-updates: 17/25] inputMethod: Add signal/getter for surrounding text updates

[Carlos Garnacho <carlosg src gnome org>]

commit 305a4dd31be3983eeb6996ff8263e23c065d8c8f
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Apr 20 23:16:38 2022 +0200

    inputMethod: Add signal/getter for surrounding text updates
    
    We need to keep track of those at places, add a signal and getter
    so that this information can be accessed from the OSK.

 js/misc/inputMethod.js | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)
---
diff --git a/js/misc/inputMethod.js b/js/misc/inputMethod.js
index 8c3cd61aeb..361c08b6a8 100644
--- a/js/misc/inputMethod.js
+++ b/js/misc/inputMethod.js
@@ -9,8 +9,11 @@ Gio._promisify(IBus.Bus.prototype,
 
 var HIDE_PANEL_TIME = 50;
 
-var InputMethod = GObject.registerClass(
-class InputMethod extends Clutter.InputMethod {
+var InputMethod = GObject.registerClass({
+    Signals: {
+        'surrounding-text-updated': {},
+    },
+}, class InputMethod extends Clutter.InputMethod {
     _init() {
         super._init();
         this._hints = 0;
@@ -186,6 +189,8 @@ class InputMethod extends Clutter.InputMethod {
             this._emitRequestSurrounding();
         }
 
+        this._surroundingText = null;
+        this._surroundingTextCursor = null;
         this._preeditStr = null;
     }
 
@@ -198,6 +203,10 @@ class InputMethod extends Clutter.InputMethod {
     }
 
     vfunc_set_surrounding(text, cursor, anchor) {
+        this._surroundingText = text;
+        this._surroundingTextCursor = cursor;
+        this.emit('surrounding-text-updated');
+
         if (!this._context || !text)
             return;
 
@@ -282,4 +291,8 @@ class InputMethod extends Clutter.InputMethod {
             });
         return true;
     }
+
+    getSurroundingText() {
+        return [this._surroundingText, this._surroundingTextCursor];
+    }
 });