487 lines
14 KiB
JavaScript
487 lines
14 KiB
JavaScript
/*
|
|
* Copyright (C) 2016-2017 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 Frontend {
|
|
constructor() {
|
|
this.popup = new Popup();
|
|
this.popupTimer = null;
|
|
this.mouseDownLeft = false;
|
|
this.mouseDownMiddle = false;
|
|
this.textSourceLast = null;
|
|
this.pendingLookup = false;
|
|
this.options = null;
|
|
|
|
this.primaryTouchIdentifier = null;
|
|
this.contextMenuChecking = false;
|
|
this.contextMenuPrevent = false;
|
|
this.contextMenuPreviousRange = null;
|
|
this.mouseDownPrevent = false;
|
|
this.clickPrevent = false;
|
|
this.scrollPrevent = false;
|
|
}
|
|
|
|
async prepare() {
|
|
try {
|
|
this.options = await apiOptionsGet();
|
|
|
|
window.addEventListener('message', this.onFrameMessage.bind(this));
|
|
window.addEventListener('mousedown', this.onMouseDown.bind(this));
|
|
window.addEventListener('mousemove', this.onMouseMove.bind(this));
|
|
window.addEventListener('mouseover', this.onMouseOver.bind(this));
|
|
window.addEventListener('mouseup', this.onMouseUp.bind(this));
|
|
window.addEventListener('resize', this.onResize.bind(this));
|
|
|
|
if (this.options.scanning.touchInputEnabled) {
|
|
window.addEventListener('click', this.onClick.bind(this));
|
|
window.addEventListener('touchstart', this.onTouchStart.bind(this));
|
|
window.addEventListener('touchend', this.onTouchEnd.bind(this));
|
|
window.addEventListener('touchcancel', this.onTouchCancel.bind(this));
|
|
window.addEventListener('touchmove', this.onTouchMove.bind(this), {passive: false});
|
|
window.addEventListener('contextmenu', this.onContextMenu.bind(this));
|
|
}
|
|
|
|
chrome.runtime.onMessage.addListener(this.onBgMessage.bind(this));
|
|
} catch (e) {
|
|
this.onError(e);
|
|
}
|
|
}
|
|
|
|
onMouseOver(e) {
|
|
if (e.target === this.popup.container && this.popupTimer) {
|
|
this.popupTimerClear();
|
|
}
|
|
}
|
|
|
|
onMouseMove(e) {
|
|
this.popupTimerClear();
|
|
|
|
if (!this.options.general.enable) {
|
|
return;
|
|
}
|
|
|
|
if (this.mouseDownLeft) {
|
|
return;
|
|
}
|
|
|
|
if (this.pendingLookup) {
|
|
return;
|
|
}
|
|
|
|
const mouseScan = this.mouseDownMiddle && this.options.scanning.middleMouse;
|
|
const keyScan =
|
|
this.options.scanning.modifier === 'alt' && e.altKey ||
|
|
this.options.scanning.modifier === 'ctrl' && e.ctrlKey ||
|
|
this.options.scanning.modifier === 'shift' && e.shiftKey ||
|
|
this.options.scanning.modifier === 'none';
|
|
|
|
if (!keyScan && !mouseScan) {
|
|
return;
|
|
}
|
|
|
|
const search = async () => {
|
|
try {
|
|
await this.searchAt({x: e.clientX, y: e.clientY}, 'mouse');
|
|
} catch (e) {
|
|
this.onError(e);
|
|
}
|
|
};
|
|
|
|
if (this.options.scanning.modifier === 'none') {
|
|
this.popupTimerSet(search);
|
|
} else {
|
|
search();
|
|
}
|
|
}
|
|
|
|
onMouseDown(e) {
|
|
if (this.mouseDownPrevent) {
|
|
this.setMouseDownPrevent(false, false);
|
|
this.setClickPrevent(true);
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
return false;
|
|
}
|
|
|
|
this.mousePosLast = {x: e.clientX, y: e.clientY};
|
|
this.popupTimerClear();
|
|
this.searchClear();
|
|
|
|
if (e.which === 1) {
|
|
this.mouseDownLeft = true;
|
|
} else if (e.which === 2) {
|
|
this.mouseDownMiddle = true;
|
|
}
|
|
}
|
|
|
|
onMouseUp(e) {
|
|
if (e.which === 1) {
|
|
this.mouseDownLeft = false;
|
|
} else if (e.which === 2) {
|
|
this.mouseDownMiddle = false;
|
|
}
|
|
}
|
|
|
|
onFrameMessage(e) {
|
|
const handlers = {
|
|
popupClose: () => {
|
|
this.searchClear();
|
|
},
|
|
|
|
selectionCopy: () => {
|
|
document.execCommand('copy');
|
|
}
|
|
};
|
|
|
|
const handler = handlers[e.data];
|
|
if (handler) {
|
|
handler();
|
|
}
|
|
}
|
|
|
|
onResize() {
|
|
this.searchClear();
|
|
}
|
|
|
|
onClick(e) {
|
|
if (this.clickPrevent) {
|
|
this.setClickPrevent(false);
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
onTouchStart(e) {
|
|
if (this.primaryTouchIdentifier !== null && this.getIndexOfTouch(e.touches, this.primaryTouchIdentifier) >= 0) {
|
|
return;
|
|
}
|
|
|
|
let touch = this.getPrimaryTouch(e.changedTouches);
|
|
if (this.selectionContainsPoint(window.getSelection(), touch.clientX, touch.clientY)) {
|
|
touch = null;
|
|
}
|
|
|
|
this.setPrimaryTouch(touch);
|
|
}
|
|
|
|
onTouchEnd(e) {
|
|
if (this.primaryTouchIdentifier === null) {
|
|
return;
|
|
}
|
|
|
|
if (this.getIndexOfTouch(e.changedTouches, this.primaryTouchIdentifier) < 0) {
|
|
return;
|
|
}
|
|
|
|
this.setPrimaryTouch(this.getPrimaryTouch(this.excludeTouches(e.touches, e.changedTouches)));
|
|
}
|
|
|
|
onTouchCancel(e) {
|
|
this.onTouchEnd(e);
|
|
}
|
|
|
|
onTouchMove(e) {
|
|
if (!this.scrollPrevent || !e.cancelable || this.primaryTouchIdentifier === null) {
|
|
return;
|
|
}
|
|
|
|
const touches = e.changedTouches;
|
|
const index = this.getIndexOfTouch(touches, this.primaryTouchIdentifier);
|
|
if (index < 0) {
|
|
return;
|
|
}
|
|
|
|
const touch = touches[index];
|
|
this.searchFromTouch(touch.clientX, touch.clientY, 'touchMove');
|
|
|
|
e.preventDefault(); // Disable scroll
|
|
}
|
|
|
|
onContextMenu(e) {
|
|
if (this.contextMenuPrevent) {
|
|
this.setContextMenuPrevent(false, false);
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
onAfterSearch(newRange, type, searched, success) {
|
|
if (type === 'mouse') {
|
|
return;
|
|
}
|
|
|
|
if (
|
|
!this.contextMenuChecking ||
|
|
(this.contextMenuPreviousRange === null ? newRange === null : this.contextMenuPreviousRange.equals(newRange))) {
|
|
return;
|
|
}
|
|
|
|
if (type === 'touchStart' && newRange !== null) {
|
|
this.scrollPrevent = true;
|
|
}
|
|
|
|
this.setContextMenuPrevent(true, false);
|
|
this.setMouseDownPrevent(true, false);
|
|
this.contextMenuChecking = false;
|
|
}
|
|
|
|
onBgMessage({action, params}, sender, callback) {
|
|
const handlers = {
|
|
optionsSet: options => {
|
|
this.options = options;
|
|
if (!this.options.enable) {
|
|
this.searchClear();
|
|
}
|
|
},
|
|
|
|
popupSetVisible: ({visible}) => {
|
|
this.popup.setVisible(visible);
|
|
}
|
|
};
|
|
|
|
const handler = handlers[action];
|
|
if (handler) {
|
|
handler(params);
|
|
}
|
|
|
|
callback();
|
|
}
|
|
|
|
onError(error) {
|
|
console.log(error);
|
|
}
|
|
|
|
popupTimerSet(callback) {
|
|
this.popupTimerClear();
|
|
this.popupTimer = window.setTimeout(callback, this.options.scanning.delay);
|
|
}
|
|
|
|
popupTimerClear() {
|
|
if (this.popupTimer) {
|
|
window.clearTimeout(this.popupTimer);
|
|
this.popupTimer = null;
|
|
}
|
|
}
|
|
|
|
async searchAt(point, type) {
|
|
if (this.pendingLookup || this.popup.containsPoint(point)) {
|
|
return;
|
|
}
|
|
|
|
const textSource = docRangeFromPoint(point, this.options);
|
|
let hideResults = !textSource || !textSource.containsPoint(point);
|
|
let searched = false;
|
|
let success = false;
|
|
|
|
try {
|
|
if (!hideResults && (!this.textSourceLast || !this.textSourceLast.equals(textSource))) {
|
|
searched = true;
|
|
this.pendingLookup = true;
|
|
const focus = (type === 'mouse');
|
|
hideResults = !await this.searchTerms(textSource, focus) && !await this.searchKanji(textSource, focus);
|
|
success = true;
|
|
}
|
|
} catch (e) {
|
|
if (window.yomichan_orphaned) {
|
|
if (textSource && this.options.scanning.modifier !== 'none') {
|
|
this.popup.showOrphaned(
|
|
textSource.getRect(),
|
|
textSource.getWritingMode(),
|
|
this.options
|
|
);
|
|
}
|
|
} else {
|
|
this.onError(e);
|
|
}
|
|
} finally {
|
|
if (textSource !== null) {
|
|
textSource.cleanup();
|
|
}
|
|
if (hideResults && this.options.scanning.autoHideResults) {
|
|
this.searchClear();
|
|
}
|
|
|
|
this.pendingLookup = false;
|
|
this.onAfterSearch(this.textSourceLast, type, searched, success);
|
|
}
|
|
}
|
|
|
|
async searchTerms(textSource, focus) {
|
|
textSource.setEndOffset(this.options.scanning.length);
|
|
|
|
const {definitions, length} = await apiTermsFind(textSource.text());
|
|
if (definitions.length === 0) {
|
|
return false;
|
|
}
|
|
|
|
textSource.setEndOffset(length);
|
|
|
|
const sentence = docSentenceExtract(textSource, this.options.anki.sentenceExt);
|
|
const url = window.location.href;
|
|
this.popup.termsShow(
|
|
textSource.getRect(),
|
|
textSource.getWritingMode(),
|
|
definitions,
|
|
this.options,
|
|
{sentence, url, focus}
|
|
);
|
|
|
|
this.textSourceLast = textSource;
|
|
if (this.options.scanning.selectText) {
|
|
textSource.select();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
async searchKanji(textSource, focus) {
|
|
textSource.setEndOffset(1);
|
|
|
|
const definitions = await apiKanjiFind(textSource.text());
|
|
if (definitions.length === 0) {
|
|
return false;
|
|
}
|
|
|
|
const sentence = docSentenceExtract(textSource, this.options.anki.sentenceExt);
|
|
const url = window.location.href;
|
|
this.popup.kanjiShow(
|
|
textSource.getRect(),
|
|
textSource.getWritingMode(),
|
|
definitions,
|
|
this.options,
|
|
{sentence, url, focus}
|
|
);
|
|
|
|
this.textSourceLast = textSource;
|
|
if (this.options.scanning.selectText) {
|
|
textSource.select();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
searchClear() {
|
|
this.popup.hide();
|
|
this.popup.clearAutoPlayTimer();
|
|
|
|
if (this.options.scanning.selectText && this.textSourceLast) {
|
|
this.textSourceLast.deselect();
|
|
}
|
|
|
|
this.textSourceLast = null;
|
|
}
|
|
|
|
getPrimaryTouch(touchList) {
|
|
return touchList.length > 0 ? touchList[0] : null;
|
|
}
|
|
|
|
getIndexOfTouch(touchList, identifier) {
|
|
for (let i in touchList) {
|
|
let t = touchList[i];
|
|
if (t.identifier === identifier) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
excludeTouches(touchList, excludeTouchList) {
|
|
const result = [];
|
|
for (let r of touchList) {
|
|
if (this.getIndexOfTouch(excludeTouchList, r.identifier) < 0) {
|
|
result.push(r);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
setPrimaryTouch(touch) {
|
|
if (touch === null) {
|
|
this.primaryTouchIdentifier = null;
|
|
this.contextMenuPreviousRange = null;
|
|
this.contextMenuChecking = false;
|
|
this.scrollPrevent = false;
|
|
this.setContextMenuPrevent(false, true);
|
|
this.setMouseDownPrevent(false, true);
|
|
this.setClickPrevent(false);
|
|
}
|
|
else {
|
|
this.primaryTouchIdentifier = touch.identifier;
|
|
this.contextMenuPreviousRange = this.textSourceLast ? this.textSourceLast.clone() : null;
|
|
this.contextMenuChecking = true;
|
|
this.scrollPrevent = false;
|
|
this.setContextMenuPrevent(false, false);
|
|
this.setMouseDownPrevent(false, false);
|
|
this.setClickPrevent(false);
|
|
|
|
this.searchFromTouch(touch.clientX, touch.clientY, 'touchStart');
|
|
}
|
|
}
|
|
|
|
setContextMenuPrevent(value, delay) {
|
|
if (!delay) {
|
|
this.contextMenuPrevent = value;
|
|
}
|
|
}
|
|
|
|
setMouseDownPrevent(value, delay) {
|
|
if (!delay) {
|
|
this.mouseDownPrevent = value;
|
|
}
|
|
}
|
|
|
|
setClickPrevent(value) {
|
|
this.clickPrevent = value;
|
|
}
|
|
|
|
searchFromTouch(x, y, type) {
|
|
this.popupTimerClear();
|
|
|
|
if (!this.options.general.enable || this.pendingLookup) {
|
|
return;
|
|
}
|
|
|
|
const search = async () => {
|
|
try {
|
|
await this.searchAt({x, y}, type);
|
|
} catch (e) {
|
|
this.onError(e);
|
|
}
|
|
};
|
|
|
|
search();
|
|
}
|
|
|
|
selectionContainsPoint(selection, x, y) {
|
|
for (let i = 0; i < selection.rangeCount; ++i) {
|
|
const range = selection.getRangeAt(i);
|
|
for (const rect of range.getClientRects()) {
|
|
if (x >= rect.left && x <= rect.right && y >= rect.top && y <= rect.bottom) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
|
|
window.yomichan_frontend = new Frontend();
|
|
window.yomichan_frontend.prepare();
|