[adapters] 增加小游戏适配部分源码

adapters/platforms/baidu/index.js

@@ -0,0 +1,58 @@
+const _global = GameGlobal;
+const adapter = _global.__globalAdapter = {};
+
+Object.assign(adapter, {
+    init () {
+        require('./wrapper/builtin');
+        _global.DOMParser = require('../../common/xmldom/dom-parser').DOMParser;
+        require('./wrapper/unify');
+        require('./wrapper/fs-utils');
+        require('../../common/engine/globalAdapter');
+        require('./wrapper/systemInfo');
+    },
+
+    adaptEngine () {
+        require('../../common/engine');
+        require('./wrapper/engine');
+        require('./wrapper/sub-context-adapter');
+    },
+
+    handleSystemInfo (cb) {
+        if (swan.getOpenDataContext) {
+            swan.getOpenDataContext().postMessage({
+                fromAdapter: true,
+                event: 'main-context-info',
+                sysInfo: __globalAdapter.getSystemInfoSync(),  // send system info to open data context
+                innerWidth: window.innerWidth,
+                innerHeight: window.innerHeight,
+                devicePixelRatio: window.devicePixelRatio,
+            });
+            cb && cb();
+        }
+        else {
+            swan.onMessage(function (data) {
+                if (data.fromAdapter) {
+                    if (data.event === 'main-context-info') {
+                        GameGlobal._env = data.sysInfo;  // revieve system info from main context
+                        Object.defineProperties(window, {
+                            'innerWidth': {
+                                value: data.innerWidth,
+                                enumerable: true,
+                            },
+                            'innerHeight': {
+                                value: data.innerHeight,
+                                enumerable: true,
+                            },
+                            'devicePixelRatio': {
+                                value: data.devicePixelRatio,
+                                enumerable: true,
+                            },
+                        });
+
+                        cb && cb();
+                    }
+                }
+            });
+        }
+    },
+});