yomichan/ext/fg/js/frontend.js

306 lines
9.6 KiB
JavaScript
Raw Normal View History

2016-03-27 20:21:52 +00:00
/*
* Copyright (C) 2016-2020 Yomichan Authors
2016-03-27 20:21:52 +00:00
*
* 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
2020-01-01 17:00:31 +00:00
* along with this program. If not, see <https://www.gnu.org/licenses/>.
2016-03-27 20:21:52 +00:00
*/
2020-03-11 02:30:36 +00:00
/* global
* TextScanner
2020-04-11 00:00:18 +00:00
* apiBroadcastTab
2020-03-11 02:30:36 +00:00
* apiGetZoom
* apiKanjiFind
* apiOptionsGet
* apiTermsFind
* docSentenceExtract
*/
2016-03-27 20:21:52 +00:00
2019-12-06 19:39:29 +00:00
class Frontend extends TextScanner {
2020-04-11 12:32:04 +00:00
constructor(popup) {
2019-12-06 19:39:29 +00:00
super(
2019-12-05 20:12:43 +00:00
window,
2020-04-10 12:49:56 +00:00
() => this.popup.isProxy() ? [] : [this.popup.getContainer()],
2020-04-11 13:20:12 +00:00
[(x, y) => this.popup.containsPoint(x, y)]
2019-12-05 20:12:43 +00:00
);
2019-12-06 19:39:29 +00:00
this.popup = popup;
this._disabledOverride = false;
2016-09-29 03:14:21 +00:00
this.options = null;
2019-02-11 01:44:16 +00:00
this.optionsContext = {
depth: popup.depth,
url: popup.url
};
this._pageZoomFactor = 1.0;
this._contentScale = 1.0;
2019-12-20 18:44:33 +00:00
this._orphaned = true;
this._lastShowPromise = Promise.resolve();
2020-02-27 00:52:12 +00:00
this._windowMessageHandlers = new Map([
['popupClose', () => this.onSearchClear(true)],
['selectionCopy', () => document.execCommand('copy')]
]);
this._runtimeMessageHandlers = new Map([
2020-03-18 22:00:42 +00:00
['popupSetVisibleOverride', ({visible}) => { this.popup.setVisibleOverride(visible); }],
['rootPopupRequestInformationBroadcast', () => { this._broadcastRootPopupInformation(); }],
['requestDocumentInformationBroadcast', ({uniqueId}) => { this._broadcastDocumentInformation(uniqueId); }]
2020-02-27 00:52:12 +00:00
]);
2017-08-13 23:11:51 +00:00
}
async prepare() {
try {
await this.updateOptions();
const {zoomFactor} = await apiGetZoom();
this._pageZoomFactor = zoomFactor;
2019-02-11 01:44:16 +00:00
2019-12-23 19:09:41 +00:00
window.addEventListener('resize', this.onResize.bind(this), false);
const visualViewport = window.visualViewport;
if (visualViewport !== null && typeof visualViewport === 'object') {
window.visualViewport.addEventListener('scroll', this.onVisualViewportScroll.bind(this));
window.visualViewport.addEventListener('resize', this.onVisualViewportResize.bind(this));
}
2020-02-27 02:01:40 +00:00
yomichan.on('orphaned', this.onOrphaned.bind(this));
yomichan.on('optionsUpdated', this.updateOptions.bind(this));
yomichan.on('zoomChanged', this.onZoomChanged.bind(this));
chrome.runtime.onMessage.addListener(this.onRuntimeMessage.bind(this));
this._updateContentScale();
this._broadcastRootPopupInformation();
2017-08-13 23:42:22 +00:00
} catch (e) {
this.onError(e);
}
}
2020-01-11 19:16:58 +00:00
onResize() {
this._updatePopupPosition();
}
2019-10-26 00:11:44 +00:00
onWindowMessage(e) {
const action = e.data;
2020-02-27 00:52:12 +00:00
const handler = this._windowMessageHandlers.get(action);
2019-12-09 03:20:07 +00:00
if (typeof handler !== 'function') { return false; }
2020-02-27 00:52:12 +00:00
handler();
2019-02-11 01:44:16 +00:00
}
onRuntimeMessage({action, params}, sender, callback) {
2020-03-13 21:23:08 +00:00
const {targetPopupId} = params || {};
if (typeof targetPopupId !== 'undefined' && targetPopupId !== this.popup.id) { return; }
2020-03-13 21:23:08 +00:00
2020-02-27 00:52:12 +00:00
const handler = this._runtimeMessageHandlers.get(action);
2019-12-09 03:20:07 +00:00
if (typeof handler !== 'function') { return false; }
2020-02-27 00:52:12 +00:00
const result = handler(params, sender);
2019-12-09 03:20:07 +00:00
callback(result);
return false;
2016-03-28 20:00:48 +00:00
}
2019-12-20 18:44:33 +00:00
onOrphaned() {
this._orphaned = true;
}
onZoomChanged({newZoomFactor}) {
this._pageZoomFactor = newZoomFactor;
this._updateContentScale();
}
onVisualViewportScroll() {
2020-01-11 19:16:58 +00:00
this._updatePopupPosition();
}
onVisualViewportResize() {
this._updateContentScale();
}
2019-12-06 19:39:29 +00:00
getMouseEventListeners() {
return [
...super.getMouseEventListeners(),
2019-12-23 19:09:41 +00:00
[window, 'message', this.onWindowMessage.bind(this)]
2019-12-06 19:39:29 +00:00
];
}
2020-04-11 12:32:04 +00:00
setDisabledOverride(disabled) {
this._disabledOverride = disabled;
2020-04-11 13:20:12 +00:00
this.setEnabled(this.options.general.enable, this._canEnable());
2020-04-11 12:32:04 +00:00
}
async setPopup(popup) {
this.onSearchClear(true);
this.popup = popup;
await popup.setOptions(this.options);
}
async updateOptions() {
2020-04-11 13:20:12 +00:00
this.setOptions(await apiOptionsGet(this.getOptionsContext()), this._canEnable());
2020-03-13 21:23:08 +00:00
const ignoreNodes = ['.scan-disable', '.scan-disable *'];
if (!this.options.scanning.enableOnPopupExpressions) {
ignoreNodes.push('.source-text', '.source-text *');
}
this.ignoreNodes = ignoreNodes.join(',');
2019-10-12 18:34:45 +00:00
await this.popup.setOptions(this.options);
2020-03-13 21:23:08 +00:00
this._updateContentScale();
2020-03-13 21:23:08 +00:00
if (this.textSourceCurrent !== null && this.causeCurrent !== null) {
await this.onSearchSource(this.textSourceCurrent, this.causeCurrent);
}
2019-10-12 02:35:59 +00:00
}
2019-12-06 19:39:29 +00:00
async onSearchSource(textSource, cause) {
let results = null;
2017-08-16 03:04:15 +00:00
2017-08-13 23:42:22 +00:00
try {
2019-11-03 16:06:31 +00:00
if (textSource !== null) {
results = (
await this.findTerms(textSource) ||
await this.findKanji(textSource)
);
if (results !== null) {
const focus = (cause === 'mouse');
this.showContent(textSource, focus, results.definitions, results.type);
}
}
2017-08-13 23:11:51 +00:00
} catch (e) {
2019-12-20 18:44:33 +00:00
if (this._orphaned) {
2019-11-03 16:06:31 +00:00
if (textSource !== null && this.options.scanning.modifier !== 'none') {
this._showPopupContent(textSource, 'orphaned');
2017-08-16 03:04:15 +00:00
}
} else {
this.onError(e);
}
2017-08-13 23:42:22 +00:00
} finally {
if (results === null && this.options.scanning.autoHideResults) {
2019-12-06 19:39:29 +00:00
this.onSearchClear(true);
}
2017-08-13 23:11:51 +00:00
}
2019-11-03 16:06:31 +00:00
return results;
2016-04-18 00:36:15 +00:00
}
showContent(textSource, focus, definitions, type) {
2017-08-13 23:11:51 +00:00
const sentence = docSentenceExtract(textSource, this.options.anki.sentenceExt);
const url = window.location.href;
this._showPopupContent(
textSource,
type,
2019-12-01 04:32:17 +00:00
{definitions, context: {sentence, url, focus, disableHistory: true}}
2017-08-13 23:11:51 +00:00
);
}
showContentCompleted() {
return this._lastShowPromise;
}
async findTerms(textSource) {
2019-12-06 19:39:29 +00:00
this.setTextSourceScanLength(textSource, this.options.scanning.length);
const searchText = textSource.text();
if (searchText.length === 0) { return null; }
2019-11-05 01:43:40 +00:00
const {definitions, length} = await apiTermsFind(searchText, {}, this.getOptionsContext());
if (definitions.length === 0) { return null; }
textSource.setEndOffset(length);
2017-08-13 23:11:51 +00:00
return {definitions, type: 'terms'};
2016-03-27 20:21:52 +00:00
}
async findKanji(textSource) {
2019-12-06 19:39:29 +00:00
this.setTextSourceScanLength(textSource, 1);
const searchText = textSource.text();
if (searchText.length === 0) { return null; }
const definitions = await apiKanjiFind(searchText, this.getOptionsContext());
if (definitions.length === 0) { return null; }
2017-08-13 23:11:51 +00:00
return {definitions, type: 'kanji'};
}
2019-12-06 19:39:29 +00:00
onSearchClear(changeFocus) {
this.popup.hide(changeFocus);
2017-12-16 18:56:53 +00:00
this.popup.clearAutoPlayTimer();
2019-12-06 19:39:29 +00:00
super.onSearchClear(changeFocus);
}
getOptionsContext() {
this.optionsContext.url = this.popup.url;
return this.optionsContext;
}
_showPopupContent(textSource, type=null, details=null) {
this._lastShowPromise = this.popup.showContent(
textSource.getRect(),
textSource.getWritingMode(),
type,
details
);
return this._lastShowPromise;
}
_updateContentScale() {
const {popupScalingFactor, popupScaleRelativeToPageZoom, popupScaleRelativeToVisualViewport} = this.options.general;
let contentScale = popupScalingFactor;
if (popupScaleRelativeToPageZoom) {
contentScale /= this._pageZoomFactor;
}
if (popupScaleRelativeToVisualViewport) {
contentScale /= Frontend._getVisualViewportScale();
}
if (contentScale === this._contentScale) { return; }
this._contentScale = contentScale;
this.popup.setContentScale(this._contentScale);
2020-01-11 19:16:58 +00:00
this._updatePopupPosition();
}
_broadcastRootPopupInformation() {
2020-04-10 12:49:56 +00:00
if (!this.popup.isProxy() && this.popup.depth === 0 && this.popup.frameId === 0) {
2020-04-11 00:00:18 +00:00
apiBroadcastTab('rootPopupInformation', {popupId: this.popup.id, frameId: this.popup.frameId});
}
}
_broadcastDocumentInformation(uniqueId) {
2020-04-11 00:00:18 +00:00
apiBroadcastTab('documentInformationBroadcast', {
uniqueId,
frameId: this.popup.frameId,
title: document.title
});
}
2020-04-11 13:20:12 +00:00
_canEnable() {
if (this.options === null) { return true; } // called by updateOptions for the first time
return this.popup.depth <= this.options.scanning.popupNestingMaxDepth && !this._disabledOverride;
}
2020-01-11 19:16:58 +00:00
async _updatePopupPosition() {
const textSource = this.getCurrentTextSource();
if (textSource !== null && await this.popup.isVisible()) {
this._showPopupContent(textSource);
}
}
static _getVisualViewportScale() {
const visualViewport = window.visualViewport;
return visualViewport !== null && typeof visualViewport === 'object' ? visualViewport.scale : 1.0;
}
2017-08-14 03:50:43 +00:00
}