yomichan/ext/fg/js/client.js

161 lines
4.8 KiB
JavaScript
Raw Normal View History

2016-03-27 20:21:52 +00:00
/*
* 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() {
2016-03-28 20:00:48 +00:00
this.lastMosePos = null;
2016-04-08 03:51:05 +00:00
this.popupText = '';
this.popupOffset = 10;
2016-03-28 00:04:49 +00:00
this.enabled = false;
2016-04-06 05:18:55 +00:00
this.options = null;
2016-03-28 00:04:49 +00:00
2016-03-30 05:32:40 +00:00
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());
2016-04-02 19:56:47 +00:00
document.body.appendChild(this.popup);
2016-03-28 00:04:49 +00:00
chrome.runtime.onMessage.addListener(this.onMessage.bind(this));
2016-03-29 02:06:01 +00:00
window.addEventListener('mousedown', this.onMouseDown.bind(this));
window.addEventListener('mousemove', this.onMouseMove.bind(this));
window.addEventListener('keydown', this.onKeyDown.bind(this));
2016-03-29 03:01:53 +00:00
window.addEventListener('scroll', (e) => this.hidePopup());
window.addEventListener('resize', (e) => this.hidePopup());
2016-03-27 20:21:52 +00:00
2016-04-07 03:48:36 +00:00
getOptions((opts) => {
this.setOptions(opts);
getState((state) => {
this.setEnabled(state === 'enabled');
});
});
2016-03-27 20:21:52 +00:00
}
2016-03-29 02:06:01 +00:00
onKeyDown(e) {
if (this.enabled && this.lastMousePos !== null && (e.keyCode === 16 || e.charCode === 16)) {
2016-03-28 20:00:48 +00:00
this.searchAtPoint(this.lastMousePos);
2016-03-28 05:27:30 +00:00
}
}
2016-03-29 02:06:01 +00:00
onMouseMove(e) {
2016-03-28 20:00:48 +00:00
this.lastMousePos = {x: e.clientX, y: e.clientY};
2016-03-29 02:06:01 +00:00
if (this.enabled && (e.shiftKey || e.which === 2)) {
this.searchAtPoint(this.lastMousePos);
2016-03-28 00:04:49 +00:00
}
2016-03-29 02:06:01 +00:00
}
2016-03-28 00:04:49 +00:00
2016-03-29 02:06:01 +00:00
onMouseDown(e) {
this.lastMousePos = {x: e.clientX, y: e.clientY};
if (this.enabled && (e.shiftKey || e.which === 2)) {
2016-03-28 20:00:48 +00:00
this.searchAtPoint(this.lastMousePos);
2016-03-29 02:06:01 +00:00
} else {
this.hidePopup();
2016-03-28 20:00:48 +00:00
}
}
2016-04-06 05:18:55 +00:00
onMessage({name, value}, sender, callback) {
switch (name) {
case 'state':
this.setEnabled(value === 'enabled');
break;
case 'options':
this.setOptions(value);
break;
}
2016-03-28 20:00:48 +00:00
callback();
}
searchAtPoint(point) {
2016-04-07 05:02:49 +00:00
const range = getRangeAtPoint(point, this.options.scanLength);
2016-03-27 20:21:52 +00:00
if (range === null) {
this.hidePopup();
return;
}
if (this.popup.contains(range.startContainer)) {
this.hidePopup();
return;
}
2016-03-27 20:21:52 +00:00
const rect = getRangePaddedRect(range);
2016-03-28 20:00:48 +00:00
if (point.x < rect.left || point.x > rect.right) {
2016-03-27 20:21:52 +00:00
this.hidePopup();
return;
}
2016-04-08 03:51:05 +00:00
const text = range.toString();
if (text === this.popupText) {
return;
}
findTerm(text, ({results, length}) => {
2016-03-28 01:24:04 +00:00
if (length === 0) {
this.hidePopup();
} else {
range.setEnd(range.endContainer, range.startOffset + length);
2016-04-07 03:48:36 +00:00
renderText({defs: results}, 'defs.html', (html) => {
2016-03-30 05:32:40 +00:00
this.popup.innerHTML = html;
2016-03-28 03:00:41 +00:00
this.showPopup(range);
});
2016-03-28 01:24:04 +00:00
}
});
2016-03-27 20:21:52 +00:00
}
showPopup(range) {
2016-04-08 05:41:16 +00:00
if (this.options.highlightText) {
const selection = window.getSelection();
selection.removeAllRanges();
selection.addRange(range);
}
2016-03-27 20:21:52 +00:00
const pos = getPopupPositionForRange(this.popup, range, this.popupOffset);
2016-03-30 05:32:40 +00:00
2016-04-08 03:51:05 +00:00
this.popupText = range.toString();
2016-03-30 05:32:40 +00:00
this.popup.style.left = pos.x + 'px';
this.popup.style.top = pos.y + 'px';
this.popup.style.visibility = 'visible';
2016-03-27 20:21:52 +00:00
}
hidePopup() {
2016-04-08 03:51:05 +00:00
if (this.popup.style.visibility === 'hidden') {
return;
2016-03-28 20:00:48 +00:00
}
2016-04-08 03:51:05 +00:00
2016-04-08 05:41:16 +00:00
if (this.options.highlightText) {
const selection = window.getSelection();
selection.removeAllRanges();
}
2016-04-08 03:51:05 +00:00
this.popupText = '';
this.popup.style.visibility = 'hidden';
2016-03-27 20:21:52 +00:00
}
2016-03-28 00:04:49 +00:00
setEnabled(enabled) {
if (!(this.enabled = enabled)) {
this.hidePopup();
}
}
2016-04-06 05:18:55 +00:00
setOptions(opts) {
this.options = opts;
}
2016-03-27 20:21:52 +00:00
}
window.yomiClient = new Client();