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-rw-r--r--ext/fg/js/popup-proxy-host.js33
1 files changed, 32 insertions, 1 deletions
diff --git a/ext/fg/js/popup-proxy-host.js b/ext/fg/js/popup-proxy-host.js
index 4dc79943..487dda90 100644
--- a/ext/fg/js/popup-proxy-host.js
+++ b/ext/fg/js/popup-proxy-host.js
@@ -19,6 +19,7 @@
/* global
* FrontendApiReceiver
* Popup
+ * apiForward
* apiFrameInformationGet
*/
@@ -48,6 +49,12 @@ class PopupProxyHost {
['clearAutoPlayTimer', this._onApiClearAutoPlayTimer.bind(this)],
['setContentScale', this._onApiSetContentScale.bind(this)]
]));
+
+ this._windowMessageHandlers = new Map([
+ ['getIframeOffset', ({offset, uniqueId}, e) => { return this._onGetIframeOffset(offset, uniqueId, e); }]
+ ]);
+
+ window.addEventListener('message', this.onMessage.bind(this), false);
}
getOrCreatePopup(id=null, parentId=null, depth=null) {
@@ -95,7 +102,7 @@ class PopupProxyHost {
return popup;
}
- // Message handlers
+ // API message handlers
async _onApiGetOrCreatePopup({id, parentId}) {
const popup = this.getOrCreatePopup(id, parentId);
@@ -152,6 +159,30 @@ class PopupProxyHost {
return popup.setContentScale(scale);
}
+ // Window message handlers
+
+ onMessage(e) {
+ const {action, params} = e.data;
+ const handler = this._windowMessageHandlers.get(action);
+ if (typeof handler !== 'function') { return; }
+ handler(params, e);
+ }
+
+ _onGetIframeOffset(offset, uniqueId, e) {
+ let sourceIframe = null;
+ for (const iframe of document.querySelectorAll('iframe:not(.yomichan-float)')) {
+ if (iframe.contentWindow !== e.source) { continue; }
+ sourceIframe = iframe;
+ break;
+ }
+ if (sourceIframe === null) { return; }
+
+ const [forwardedX, forwardedY] = offset;
+ const {x, y} = sourceIframe.getBoundingClientRect();
+ offset = [forwardedX + x, forwardedY + y];
+ apiForward('iframeOffset', {offset, uniqueId});
+ }
+
// Private functions
_getPopup(id) {