summaryrefslogtreecommitdiff
path: root/ext/fg/js/frame-offset-forwarder.js
diff options
context:
space:
mode:
Diffstat (limited to 'ext/fg/js/frame-offset-forwarder.js')
-rw-r--r--ext/fg/js/frame-offset-forwarder.js70
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};
- }
-}