diff --git a/_server/editor_blockly.js b/_server/editor_blockly.js
index f89f36bf..1a9b5e40 100644
--- a/_server/editor_blockly.js
+++ b/_server/editor_blockly.js
@@ -799,6 +799,57 @@ function omitedcheckUpdateFunction(event) {
         });
     }
 
+    editor_blockly.getAutoCompletions = function (content) {
+        // --- content为当前框中输入内容；将返回一个列表，为后续所有可补全内容
+
+        // 检查 flag:xxx，item:xxx和flag:xxx
+        var index = content.lastIndexOf(":");
+        if (index >= 0) {
+            var before = content.substring(0, index), token = content.substring(index+1);
+            if (/^\w*$/.test(token)) {
+                if (before.endsWith("status")) {
+                    return Object.keys(core.status.hero).filter(function (one) {
+                        return one != token && one.startsWith(token);
+                    }).sort();
+                }
+                else if (before.endsWith("item")) {
+                    return Object.keys(core.material.items).filter(function (one) {
+                        return one.startsWith(token);
+                    }).sort();
+                }
+                else if (before.endsWith("flag")) {
+                    // TODO：提供 flag:xxx 的补全
+                    return [];
+                }
+            }
+        }
+
+        // 提供 core.xxx 的补全
+        index = content.lastIndexOf("core.");
+        if (index >= 0) {
+            var s = content.substring(index + 5);
+            if (/^[\w.]*$/.test(s)) {
+                var tokens = s.split(".");
+                var now = core, prefix = tokens[tokens.length - 1];
+                for (var i = 0; i < tokens.length - 1; ++i) {
+                    now = now[tokens[i]];
+                    if (now == null) break;
+                }
+                if (now != null) {
+                    var candidates = [];
+                    for (var i in now) {
+                        candidates.push(i);
+                    }
+                    return candidates.filter(function (one) {
+                        return one != prefix && one.startsWith(prefix);
+                    }).sort();
+                }
+            }
+        }
+
+        return [];
+    }
+
     return editor_blockly;
 }
 //editor_blockly=editor_blockly();
\ No newline at end of file
diff --git a/libs/ui.js b/libs/ui.js
index 1961425e..49943fe3 100644
--- a/libs/ui.js
+++ b/libs/ui.js
@@ -885,15 +885,12 @@ ui.prototype.drawTextContent = function (ctx, content, config) {
     config.blocks = [];
 
     // 创建一个新的临时画布
-    var tempCtx = core.bigmap.tempCanvas;
-    tempCtx.canvas.height = ctx.canvas.height;
-    tempCtx.canvas.width = ctx.canvas.width;
-    var _textBaseLine = tempCtx.textBaseline;
+    var tempCtx = core.createCanvas('__temp__', 0, 0, ctx.canvas.width, ctx.canvas.height, -1);
     tempCtx.textBaseline = 'top';
     tempCtx.font = this._buildFont(config.fontSize, config.bold);
     tempCtx.fillStyle = config.color;
     this._drawTextContent_draw(ctx, tempCtx, content, config);
-    tempCtx.textBaseline = _textBaseLine;
+    core.deleteCanvas('__temp__');
 }
 
 ui.prototype._uievent_drawTextContent = function (data) {