update

AzA/_internal/webview/js/state.js

@@ -0,0 +1,69 @@
+pywebview.state = (function() {
+
+  function createEventTargetFromJSON(jsonString) {
+    var data = JSON.parse(jsonString);
+    var eventTarget = new EventTarget();
+
+    for (var key in data) {
+        if (data.hasOwnProperty(key)) {
+            eventTarget[key] = data[key];
+        }
+    }
+
+    return eventTarget;
+}
+  var initialState = '%(state)s'
+  var target = createEventTargetFromJSON(initialState);
+
+  return new Proxy(target, {
+    get: function(obj, key) {
+      var value = obj[key];
+      if (typeof(value) == 'function'){
+        return value.bind(obj);
+      }
+      return value;
+    },
+
+    set: function(target, key, value) {
+      var haltUpdate = false;
+      if (key.indexOf('__pywebviewHaltUpdate__') == 0) {
+        key = key.replace('__pywebviewHaltUpdate__', '');
+        haltUpdate = true;
+      }
+      var oldValue = target[key];
+
+      if (oldValue === value) {
+        return
+      }
+
+      target[key] = value;
+      target.dispatchEvent(new CustomEvent('change', {detail: {key: key, value: value}}))
+
+      if (!haltUpdate) {
+        pywebview._jsApiCallback('pywebviewStateUpdate', { key: key, value: value}, (Math.random() + "").substring(2));
+      }
+
+      return true;
+    },
+
+    deleteProperty: function(target, key) {
+      var haltUpdate = false;
+      if (key.indexOf('__pywebviewHaltUpdate__') == 0) {
+        key = key.replace('__pywebviewHaltUpdate__', '');
+        haltUpdate = true;
+      }
+
+      if (key in target) {
+        var oldValue = target[key];
+        delete target[key];
+
+        if (!haltUpdate) {
+          pywebview._jsApiCallback('pywebviewStateDelete', key, (Math.random() + "").substring(2));
+        }
+        target.dispatchEvent(new CustomEvent('delete', {detail: {key: key, value: oldValue}}))
+        return true;
+      }
+      return false;
+    }
+  })
+})();