feat: new options for ForceResponsiveViewportFeature

- minScale
- initScale

Author: jsamr

packages/webshell/src/features/ForceResponsiveViewportFeature.ts

@@ -14,10 +14,24 @@ export interface ForceResponsiveViewportOptions {
    * @defaultvalue 1
    */
   maxScale?: number;
+  /**
+   * Minimum pinch-zoom scale.
+   *
+   * @defaultvalue 1
+   */
+  minScale?: number;
+  /**
+   * Initial zoom scale.
+   *
+   * @defaultvalue 1
+   */
+  initScale?: number;
 }
 
 const defaultOptions: Required<ForceResponsiveViewportOptions> = {
-  maxScale: 1
+  maxScale: 1,
+  initScale: 1,
+  minScale: 1
 };
 
 /**

packages/webshell/src/features/ForceResponsiveViewportFeature.webjs

@@ -1,10 +1,16 @@
 function ForceResponsiveViewportFeature(context) {
   var options = context.options || {};
   var maxScale = options.maxScale || 1;
+  var initScale = options.initScale || 1;
+  var minScale = options.minScale || 1;
   var metaViewportContent =
     'width=device-width, ' +
-    'initial-scale=1, ' +
-    'minimum-scale=1, ' +
+    'initial-scale=' +
+    initScale +
+    ',' +
+    'minimum-scale=' +
+    minScale +
+    ',' +
     'maximum-scale=' +
     maxScale;
   var metaElements = document.getElementsByTagName('meta');