fix(ImagePreview): incorrect move range in some cases (#7142)

* fix(ImagePreview): incorrect move range in some cases

* chore: remove inBrowser

* test(ImagePreview): fix failed case

src/image-preview/test/index.spec.js

@@ -219,12 +219,7 @@ test('register component', () => {
 });
 
 test('zoom in and drag image to move', async () => {
-  const restore = mockGetBoundingClientRect({ width: 100 });
-  const originWindowWidth = window.innerWidth;
-  const originWindowHeight = window.innerHeight;
-
-  window.innerWidth = 100;
-  window.innerHeight = 100;
+  const restore = mockGetBoundingClientRect({ width: 100, height: 100 });
 
   const wrapper = mount(ImagePreviewVue, {
     propsData: { images, value: true },
@@ -248,8 +243,6 @@ test('zoom in and drag image to move', async () => {
   triggerDrag(image, 300, 300);
   expect(wrapper.find('.van-image')).toMatchSnapshot();
 
-  window.innerWidth = originWindowWidth;
-  window.innerHeight = originWindowHeight;
   restore();
 });