96 lines
2.7 KiB
JavaScript
96 lines
2.7 KiB
JavaScript
/*
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* Copyright (C) 2016 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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class Popup {
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constructor() {
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this.container = null;
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this.offset = 10;
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}
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showAt(pos, content) {
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this.inject();
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this.container.style.left = pos.x + 'px';
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this.container.style.top = pos.y + 'px';
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this.container.style.visibility = 'visible';
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this.setContent(content);
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}
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showNextTo(elementRect, content) {
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this.inject();
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const containerRect = this.container.getBoundingClientRect();
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let posX = elementRect.left;
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if (posX + containerRect.width >= window.innerWidth) {
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posX = window.innerWidth - containerRect.width;
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}
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let posY = elementRect.bottom + this.offset;
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if (posY + containerRect.height >= window.innerHeight) {
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posY = elementRect.top - containerRect.height - this.offset;
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}
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this.showAt({x: posX, y: posY}, content);
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}
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visible() {
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return this.container !== null && this.container.style.visibility !== 'hidden';
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}
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hide() {
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if (this.container !== null) {
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this.container.style.visibility = 'hidden';
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}
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}
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setContent(content) {
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if (this.container === null) {
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return;
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}
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this.container.contentWindow.scrollTo(0, 0);
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const doc = this.container.contentDocument;
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doc.open();
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doc.write(content);
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doc.close();
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}
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invokeApi(action, params) {
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if (this.container !== null) {
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this.container.contentWindow.postMessage({action, params}, '*');
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}
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}
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inject() {
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if (this.container !== null) {
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return;
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}
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this.container = document.createElement('iframe');
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this.container.id = 'yomichan-popup';
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this.container.addEventListener('mousedown', e => e.stopPropagation());
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this.container.addEventListener('scroll', e => e.stopPropagation());
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document.body.appendChild(this.container);
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}
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}
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