diff options
Diffstat (limited to 'ext/fg/js/frame-offset-forwarder.js')
-rw-r--r-- | ext/fg/js/frame-offset-forwarder.js | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/ext/fg/js/frame-offset-forwarder.js b/ext/fg/js/frame-offset-forwarder.js deleted file mode 100644 index 0a0b4a18..00000000 --- a/ext/fg/js/frame-offset-forwarder.js +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Copyright (C) 2020-2021 Yomichan Authors - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <https://www.gnu.org/licenses/>. - */ - -/* global - * FrameAncestryHandler - * api - */ - -class FrameOffsetForwarder { - constructor(frameId) { - this._frameId = frameId; - this._frameAncestryHandler = new FrameAncestryHandler(frameId); - } - - prepare() { - this._frameAncestryHandler.prepare(); - api.crossFrame.registerHandlers([ - ['FrameOffsetForwarder.getChildFrameRect', {async: false, handler: this._onMessageGetChildFrameRect.bind(this)}] - ]); - } - - async getOffset() { - if (this._frameAncestryHandler.isRootFrame()) { - return [0, 0]; - } - - const ancestorFrameIds = await this._frameAncestryHandler.getFrameAncestryInfo(); - - let childFrameId = this._frameId; - const promises = []; - for (const frameId of ancestorFrameIds) { - promises.push(api.crossFrame.invoke(frameId, 'FrameOffsetForwarder.getChildFrameRect', {frameId: childFrameId})); - childFrameId = frameId; - } - - const results = await Promise.all(promises); - - let xOffset = 0; - let yOffset = 0; - for (const {x, y} of results) { - xOffset += x; - yOffset += y; - } - return [xOffset, yOffset]; - } - - // Private - - _onMessageGetChildFrameRect({frameId}) { - const frameElement = this._frameAncestryHandler.getChildFrameElement(frameId); - if (frameElement === null) { return null; } - - const {x, y, width, height} = frameElement.getBoundingClientRect(); - return {x, y, width, height}; - } -} |