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-rw-r--r--ext/fg/js/popup-proxy.js69
1 files changed, 68 insertions, 1 deletions
diff --git a/ext/fg/js/popup-proxy.js b/ext/fg/js/popup-proxy.js
index 997b1317..c1ee76ce 100644
--- a/ext/fg/js/popup-proxy.js
+++ b/ext/fg/js/popup-proxy.js
@@ -29,6 +29,12 @@ class PopupProxy {
this._depth = depth;
this._url = url;
this._apiSender = new FrontendApiSender();
+
+ this._windowMessageHandlers = new Map([
+ ['getIframeOffset', ({offset, uniqueId}, e) => { return this._onGetIframeOffset(offset, uniqueId, e); }]
+ ]);
+
+ window.addEventListener('message', this.onMessage.bind(this), false);
}
// Public properties
@@ -83,12 +89,19 @@ class PopupProxy {
if (this._id === null) {
return false;
}
+ if (this._depth === 0) {
+ [x, y] = await PopupProxy._convertIframePointToRootPagePoint(x, y);
+ }
return await this._invokeHostApi('containsPoint', {id: this._id, x, y});
}
async showContent(elementRect, writingMode, type=null, details=null) {
const id = await this._getPopupId();
- elementRect = PopupProxy._convertDOMRectToJson(elementRect);
+ let {x, y, width, height} = PopupProxy._convertDOMRectToJson(elementRect);
+ if (this._depth === 0) {
+ [x, y] = await PopupProxy._convertIframePointToRootPagePoint(x, y);
+ elementRect = {x, y, width, height};
+ }
return await this._invokeHostApi('showContent', {id, elementRect, writingMode, type, details});
}
@@ -109,6 +122,31 @@ class PopupProxy {
this._invokeHostApi('setContentScale', {id, 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];
+ window.parent.postMessage({action: 'getIframeOffset', params: {offset, uniqueId}}, '*');
+ }
+
+
// Private
_getPopupId() {
@@ -131,6 +169,35 @@ class PopupProxy {
return this._apiSender.invoke(action, params, `popup-proxy-host#${this._parentFrameId}`);
}
+ static async _convertIframePointToRootPagePoint(x, y) {
+ const uniqueId = yomichan.generateId(16);
+
+ let frameOffsetResolve = null;
+ const frameOffsetPromise = new Promise((resolve) => (frameOffsetResolve = resolve));
+
+ const runtimeMessageCallback = ({action, params}, sender, callback) => {
+ if (action === 'iframeOffset' && isObject(params) && params.uniqueId === uniqueId) {
+ chrome.runtime.onMessage.removeListener(runtimeMessageCallback);
+ callback();
+ frameOffsetResolve(params);
+ return false;
+ }
+ };
+ chrome.runtime.onMessage.addListener(runtimeMessageCallback);
+
+ window.parent.postMessage({
+ action: 'getIframeOffset',
+ params: {
+ uniqueId,
+ offset: [x, y]
+ }
+ }, '*');
+
+ const {offset} = await frameOffsetPromise;
+
+ return offset;
+ }
+
static _convertDOMRectToJson(domRect) {
return {
x: domRect.x,