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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 Client {
constructor() {
this.popupOffset = 10;
this.lastMosePos = null;
this.enabled = false;
this.popup = document.createElement('div');
this.popup.classList.add('yomichan-popup');
this.popup.addEventListener('mousedown', (e) => e.stopPropagation());
this.popup.addEventListener('scroll', (e) => e.stopPropagation());
document.body.appendChild(this.popup);
chrome.runtime.onMessage.addListener(this.onMessage.bind(this));
window.addEventListener('mousedown', this.onMouseDown.bind(this));
window.addEventListener('mousemove', this.onMouseMove.bind(this));
window.addEventListener('keydown', this.onKeyDown.bind(this));
window.addEventListener('scroll', (e) => this.hidePopup());
window.addEventListener('resize', (e) => this.hidePopup());
getState((state) => this.setEnabled(state === 'enabled'));
}
onKeyDown(e) {
if (this.enabled && this.lastMousePos !== null && (e.keyCode === 16 || e.charCode === 16)) {
this.searchAtPoint(this.lastMousePos);
}
}
onMouseMove(e) {
this.lastMousePos = {x: e.clientX, y: e.clientY};
if (this.enabled && (e.shiftKey || e.which === 2)) {
this.searchAtPoint(this.lastMousePos);
}
}
onMouseDown(e) {
this.lastMousePos = {x: e.clientX, y: e.clientY};
if (this.enabled && (e.shiftKey || e.which === 2)) {
this.searchAtPoint(this.lastMousePos);
} else {
this.hidePopup();
}
}
onMessage(request, sender, callback) {
this.setEnabled(request === 'enabled');
callback();
}
searchAtPoint(point) {
const range = getRangeAtPoint(point, 10);
if (range === null) {
this.hidePopup();
return;
}
const rect = getRangePaddedRect(range);
if (point.x < rect.left || point.x > rect.right) {
this.hidePopup();
return;
}
findTerm(range.toString(), ({results, length}) => {
if (length === 0) {
this.hidePopup();
} else {
range.setEnd(range.endContainer, range.startOffset + length);
renderTemplate({defs: results}, 'defs.html', (html) => {
this.popup.innerHTML = html;
this.showPopup(range);
});
}
});
}
showPopup(range) {
const selection = window.getSelection();
selection.removeAllRanges();
selection.addRange(range);
const pos = getPopupPositionForRange(this.popup, range, this.popupOffset);
this.popup.style.left = pos.x + 'px';
this.popup.style.top = pos.y + 'px';
this.popup.style.visibility = 'visible';
}
hidePopup() {
if (this.popup.style.visibility !== 'hidden') {
const selection = window.getSelection();
selection.removeAllRanges();
this.popup.style.visibility = 'hidden';
}
}
setEnabled(enabled) {
if (!(this.enabled = enabled)) {
this.hidePopup();
}
}
}
window.yomiClient = new Client();
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