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/*
* Copyright (C) 2016 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* 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 <http://www.gnu.org/licenses/>.
*/
class Popup {
constructor() {
this.offset = 10;
this.container = document.createElement('iframe');
this.container.id = 'yomichan-popup';
this.container.addEventListener('mousedown', e => e.stopPropagation());
this.container.addEventListener('scroll', e => e.stopPropagation());
this.container.setAttribute('src', chrome.extension.getURL('/fg/frame.html'));
document.body.appendChild(this.container);
}
showAt(rect) {
this.container.style.left = `${rect.x}px`;
this.container.style.top = `${rect.y}px`;
this.container.style.height = `${rect.height}px`;
this.container.style.width = `${rect.width}px`;
this.container.style.visibility = 'visible';
}
showNextTo(elementRect) {
const containerStyle = window.getComputedStyle(this.container);
const containerHeight = parseInt(containerStyle.height);
const containerWidth = parseInt(containerStyle.width);
let x = elementRect.left;
let width = containerWidth;
const overflowX = Math.max(x + width - document.body.clientWidth, 0);
if (overflowX > 0) {
if (x >= overflowX) {
x -= overflowX;
} else {
width = document.body.clientWidth;
x = 0;
}
}
let y = 0;
let height = containerHeight;
const yBelow = elementRect.bottom + this.offset;
const yAbove = elementRect.top - this.offset;
const overflowBelow = Math.max(yBelow + height - document.body.clientHeight, 0);
const overflowAbove = Math.max(height - yAbove, 0);
if (overflowBelow > 0 || overflowAbove > 0) {
if (overflowBelow < overflowAbove) {
height = Math.max(height - overflowBelow, 0);
y = yBelow;
} else {
height = Math.max(height - overflowAbove, 0);
y = Math.max(yAbove - height, 0);
}
} else {
y = yBelow;
}
this.showAt({x, y, width, height});
}
hide() {
this.container.style.visibility = 'hidden';
}
isVisible() {
return this.container.style.visibility !== 'hidden';
}
showTermDefs(definitions, options, context) {
this.invokeApi('showTermDefs', {definitions, options, context});
}
showKanjiDefs(definitions, options, context) {
this.invokeApi('showKanjiDefs', {definitions, options, context});
}
showOrphaned() {
this.invokeApi('showOrphaned');
}
invokeApi(action, params={}) {
this.container.contentWindow.postMessage({action, params}, '*');
}
}
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