Clean up index.ts

Move functions in index.ts into utils.ts

Author: asakusuma

src/index.ts

@@ -9,17 +9,17 @@ distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */
 
-import { SpanielIntersectionObserver, generateEntry } from './intersection-observer';
+import { SpanielIntersectionObserver } from './intersection-observer';
 
-import { SpanielTrackedElement, DOMMargin, IntersectionObserverClass } from './interfaces';
+import { SpanielTrackedElement, IntersectionObserverClass } from './interfaces';
 
 export { Watcher, WatcherConfig } from './watcher';
 
 import { SpanielObserver } from './spaniel-observer';
 
 import { setGlobalEngine, getGlobalEngine } from './metal/engine';
 
-import { getGlobalScheduler, on, off, scheduleWork, scheduleRead, Frame } from './metal/index';
+import { on, off, scheduleWork, scheduleRead } from './metal/index';
 
 import w from './metal/window-proxy';
 
@@ -38,19 +38,3 @@ export {
   setGlobalEngine,
   getGlobalEngine
 };
-
-export function queryElement(el: Element, callback: (bcr: ClientRect, frame: Frame) => void) {
-  getGlobalScheduler().queryElement(el, callback);
-}
-
-export function elementSatisfiesRatio(
-  el: HTMLElement,
-  ratio: number = 0,
-  callback: (result: Boolean) => void,
-  rootMargin: DOMMargin = { top: 0, bottom: 0, left: 0, right: 0 }
-) {
-  queryElement(el, (bcr: ClientRect, frame: Frame) => {
-    let entry = generateEntry(frame, bcr, el, rootMargin);
-    callback(entry.isIntersecting && entry.intersectionRatio >= ratio);
-  });
-}

src/utils.ts

@@ -1,3 +1,27 @@
+import { generateEntry } from './intersection-observer';
+
+import { DOMMargin } from './interfaces';
+
+export { Watcher, WatcherConfig } from './watcher';
+
+import { getGlobalScheduler, Frame } from './metal/index';
+
 export function calculateIsIntersecting({ intersectionRect }: { intersectionRect: ClientRect }) {
   return intersectionRect.width > 0 || intersectionRect.height > 0;
 }
+
+export function queryElement(el: Element, callback: (bcr: ClientRect, frame: Frame) => void) {
+  getGlobalScheduler().queryElement(el, callback);
+}
+
+export function elementSatisfiesRatio(
+  el: HTMLElement,
+  ratio: number = 0,
+  callback: (result: Boolean) => void,
+  rootMargin: DOMMargin = { top: 0, bottom: 0, left: 0, right: 0 }
+) {
+  queryElement(el, (bcr: ClientRect, frame: Frame) => {
+    let entry = generateEntry(frame, bcr, el, rootMargin);
+    callback(entry.isIntersecting && entry.intersectionRatio >= ratio);
+  });
+}