rename webview to engine

ionic/engine/engine.js

@@ -0,0 +1,73 @@
+import * as util from 'ionic/util';
+
+
+let registry = {};
+let defaultEngine;
+let activeEngine;
+
+class EngineController {
+
+  constructor() {
+    let self = this;
+    let proxyMethods = 'ready fullScreen showStatusBar exitApp'.split(' ');
+    for (let x = 0; x < proxyMethods.length; x++) {
+      this[proxyMethods[x]] = function() {
+        return self.proxy(proxyMethods[x], arguments);
+      }
+    }
+  }
+
+  proxy(target, args) {
+    let eng = this.get()
+    if (eng && eng[target]) {
+      return eng[target].apply(this, args);
+    }
+    return new Promise(resolve => {}, reject => {
+      reject();
+    });
+  }
+
+  is(name) {
+    return this.name === name;
+  }
+
+  getName() {
+    return this.get().name;
+  }
+
+  get() {
+    if (util.isUndefined(activeEngine)) {
+      this.set(this.detect());
+    }
+    return activeEngine || defaultEngine;
+  }
+
+  set(eng) {
+    activeEngine = eng;
+  }
+
+  setDefault(eng) {
+    defaultEngine = eng;
+  }
+
+  register(eng) {
+    registry[eng.name] = eng;
+  }
+
+  detect() {
+    for (let name in registry) {
+      if (registry[name].isMatch()) {
+        return registry[name];
+      }
+    }
+    return null;
+  }
+
+}
+
+export let engine = new EngineController();
+
+engine.setDefault({
+  name: 'default',
+  ready: util.dom.windowLoad
+});