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authorsiikamiika <siikamiika@users.noreply.github.com>2020-03-19 17:46:05 +0200
committersiikamiika <siikamiika@users.noreply.github.com>2020-04-05 19:57:37 +0300
commitd20ece9f074bb9d241a902f29344e5906e3c8210 (patch)
treec496984fabf674081dc1360ea5c34bbae22e50c8 /ext/fg/js/popup-proxy.js
parent09151a1a860f35b8dcbdbe9a25c09be5abeb4e37 (diff)
move frame offset forwarding code to a class
Diffstat (limited to 'ext/fg/js/popup-proxy.js')
-rw-r--r--ext/fg/js/popup-proxy.js67
1 files changed, 4 insertions, 63 deletions
diff --git a/ext/fg/js/popup-proxy.js b/ext/fg/js/popup-proxy.js
index 8693ef17..73148eee 100644
--- a/ext/fg/js/popup-proxy.js
+++ b/ext/fg/js/popup-proxy.js
@@ -21,19 +21,14 @@
*/
class PopupProxy {
- constructor(id, depth, parentId, parentFrameId, url) {
+ constructor(id, depth, parentId, parentFrameId, url, applyFrameOffset=async (x, y) => [x, y]) {
this._parentId = parentId;
this._parentFrameId = parentFrameId;
this._id = id;
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);
+ this._applyFrameOffset = applyFrameOffset;
}
// Public properties
@@ -87,7 +82,7 @@ class PopupProxy {
async containsPoint(x, y) {
if (this._depth === 0) {
- [x, y] = await PopupProxy._convertIframePointToRootPagePoint(x, y);
+ [x, y] = await this._applyFrameOffset(x, y);
}
return await this._invokeHostApi('containsPoint', {id: this._id, x, y});
}
@@ -95,7 +90,7 @@ class PopupProxy {
async showContent(elementRect, writingMode, type=null, details=null) {
let {x, y, width, height} = elementRect;
if (this._depth === 0) {
- [x, y] = await PopupProxy._convertIframePointToRootPagePoint(x, y);
+ [x, y] = await this._applyFrameOffset(x, y);
}
elementRect = {x, y, width, height};
return await this._invokeHostApi('showContent', {id: this._id, elementRect, writingMode, type, details});
@@ -113,31 +108,6 @@ class PopupProxy {
this._invokeHostApi('setContentScale', {id: this._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
_invokeHostApi(action, params={}) {
@@ -146,33 +116,4 @@ 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;
- }
}