Yomichan is an ongoing community project. It really does take a village, and everyone who contributes code owns a part of it :)
160 lines
4.5 KiB
JavaScript
160 lines
4.5 KiB
JavaScript
/*
|
|
* Copyright (C) 2019-2020 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
|
|
* FrontendApiSender
|
|
*/
|
|
|
|
class PopupProxy {
|
|
constructor(id, depth, parentId, parentFrameId, url, getFrameOffset=null) {
|
|
this._parentId = parentId;
|
|
this._parentFrameId = parentFrameId;
|
|
this._id = id;
|
|
this._depth = depth;
|
|
this._url = url;
|
|
this._apiSender = new FrontendApiSender();
|
|
this._getFrameOffset = getFrameOffset;
|
|
|
|
this._frameOffset = null;
|
|
this._frameOffsetPromise = null;
|
|
this._frameOffsetUpdatedAt = null;
|
|
}
|
|
|
|
// Public properties
|
|
|
|
get id() {
|
|
return this._id;
|
|
}
|
|
|
|
get parent() {
|
|
return null;
|
|
}
|
|
|
|
get depth() {
|
|
return this._depth;
|
|
}
|
|
|
|
get url() {
|
|
return this._url;
|
|
}
|
|
|
|
// Public functions
|
|
|
|
async prepare() {
|
|
const {id} = await this._invokeHostApi('getOrCreatePopup', {id: this._id, parentId: this._parentId});
|
|
this._id = id;
|
|
}
|
|
|
|
isProxy() {
|
|
return true;
|
|
}
|
|
|
|
async setOptions(options) {
|
|
return await this._invokeHostApi('setOptions', {id: this._id, options});
|
|
}
|
|
|
|
hide(changeFocus) {
|
|
this._invokeHostApi('hide', {id: this._id, changeFocus});
|
|
}
|
|
|
|
async isVisible() {
|
|
return await this._invokeHostApi('isVisible', {id: this._id});
|
|
}
|
|
|
|
setVisibleOverride(visible) {
|
|
this._invokeHostApi('setVisibleOverride', {id: this._id, visible});
|
|
}
|
|
|
|
async containsPoint(x, y) {
|
|
if (this._getFrameOffset !== null) {
|
|
await this._updateFrameOffset();
|
|
[x, y] = this._applyFrameOffset(x, y);
|
|
}
|
|
return await this._invokeHostApi('containsPoint', {id: this._id, x, y});
|
|
}
|
|
|
|
async showContent(elementRect, writingMode, type=null, details=null) {
|
|
let {x, y, width, height} = elementRect;
|
|
if (this._getFrameOffset !== null) {
|
|
await this._updateFrameOffset();
|
|
[x, y] = this._applyFrameOffset(x, y);
|
|
}
|
|
elementRect = {x, y, width, height};
|
|
return await this._invokeHostApi('showContent', {id: this._id, elementRect, writingMode, type, details});
|
|
}
|
|
|
|
async setCustomCss(css) {
|
|
return await this._invokeHostApi('setCustomCss', {id: this._id, css});
|
|
}
|
|
|
|
clearAutoPlayTimer() {
|
|
this._invokeHostApi('clearAutoPlayTimer', {id: this._id});
|
|
}
|
|
|
|
async setContentScale(scale) {
|
|
this._invokeHostApi('setContentScale', {id: this._id, scale});
|
|
}
|
|
|
|
// Private
|
|
|
|
_invokeHostApi(action, params={}) {
|
|
if (typeof this._parentFrameId !== 'number') {
|
|
return Promise.reject(new Error('Invalid frame'));
|
|
}
|
|
return this._apiSender.invoke(action, params, `popup-proxy-host#${this._parentFrameId}`);
|
|
}
|
|
|
|
async _updateFrameOffset() {
|
|
const now = Date.now();
|
|
const firstRun = this._frameOffsetUpdatedAt === null;
|
|
const expired = firstRun || this._frameOffsetUpdatedAt < now - PopupProxy._frameOffsetExpireTimeout;
|
|
if (this._frameOffsetPromise === null && !expired) { return; }
|
|
|
|
if (this._frameOffsetPromise !== null) {
|
|
if (firstRun) {
|
|
await this._frameOffsetPromise;
|
|
}
|
|
return;
|
|
}
|
|
|
|
const promise = this._updateFrameOffsetInner(now);
|
|
if (firstRun) {
|
|
await promise;
|
|
}
|
|
}
|
|
|
|
async _updateFrameOffsetInner(now) {
|
|
this._frameOffsetPromise = this._getFrameOffset();
|
|
try {
|
|
const offset = await this._frameOffsetPromise;
|
|
this._frameOffset = offset !== null ? offset : [0, 0];
|
|
this._frameOffsetUpdatedAt = now;
|
|
} catch (e) {
|
|
logError(e);
|
|
} finally {
|
|
this._frameOffsetPromise = null;
|
|
}
|
|
}
|
|
|
|
_applyFrameOffset(x, y) {
|
|
const [offsetX, offsetY] = this._frameOffset;
|
|
return [x + offsetX, y + offsetY];
|
|
}
|
|
}
|
|
|
|
PopupProxy._frameOffsetExpireTimeout = 1000;
|