708 lines
24 KiB
JavaScript
708 lines
24 KiB
JavaScript
/*
|
|
* Copyright (C) 2016-2021 Yomichan Authors
|
|
*
|
|
* 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 <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* global
|
|
* DocumentUtil
|
|
* TextScanner
|
|
* TextSourceElement
|
|
* TextSourceRange
|
|
*/
|
|
|
|
class Frontend {
|
|
constructor({
|
|
pageType,
|
|
popupFactory,
|
|
depth,
|
|
tabId,
|
|
frameId,
|
|
parentPopupId,
|
|
parentFrameId,
|
|
useProxyPopup,
|
|
canUseWindowPopup=true,
|
|
allowRootFramePopupProxy,
|
|
childrenSupported=true,
|
|
hotkeyHandler
|
|
}) {
|
|
this._pageType = pageType;
|
|
this._popupFactory = popupFactory;
|
|
this._depth = depth;
|
|
this._tabId = tabId;
|
|
this._frameId = frameId;
|
|
this._parentPopupId = parentPopupId;
|
|
this._parentFrameId = parentFrameId;
|
|
this._useProxyPopup = useProxyPopup;
|
|
this._canUseWindowPopup = canUseWindowPopup;
|
|
this._allowRootFramePopupProxy = allowRootFramePopupProxy;
|
|
this._childrenSupported = childrenSupported;
|
|
this._hotkeyHandler = hotkeyHandler;
|
|
this._popup = null;
|
|
this._disabledOverride = false;
|
|
this._options = null;
|
|
this._pageZoomFactor = 1.0;
|
|
this._contentScale = 1.0;
|
|
this._lastShowPromise = Promise.resolve();
|
|
this._documentUtil = new DocumentUtil();
|
|
this._textScanner = new TextScanner({
|
|
node: window,
|
|
ignoreElements: this._ignoreElements.bind(this),
|
|
ignorePoint: this._ignorePoint.bind(this),
|
|
getSearchContext: this._getSearchContext.bind(this),
|
|
documentUtil: this._documentUtil,
|
|
searchTerms: true,
|
|
searchKanji: true
|
|
});
|
|
this._popupCache = new Map();
|
|
this._popupEventListeners = new EventListenerCollection();
|
|
this._updatePopupToken = null;
|
|
this._clearSelectionTimer = null;
|
|
this._isPointerOverPopup = false;
|
|
this._optionsContextOverride = null;
|
|
|
|
this._runtimeMessageHandlers = new Map([
|
|
['requestFrontendReadyBroadcast', {async: false, handler: this._onMessageRequestFrontendReadyBroadcast.bind(this)}],
|
|
['setAllVisibleOverride', {async: true, handler: this._onApiSetAllVisibleOverride.bind(this)}],
|
|
['clearAllVisibleOverride', {async: true, handler: this._onApiClearAllVisibleOverride.bind(this)}]
|
|
]);
|
|
|
|
this._hotkeyHandler.registerActions([
|
|
['scanSelectedText', this._onActionScanSelectedText.bind(this)],
|
|
['scanTextAtCaret', this._onActionScanTextAtCaret.bind(this)]
|
|
]);
|
|
}
|
|
|
|
get canClearSelection() {
|
|
return this._textScanner.canClearSelection;
|
|
}
|
|
|
|
set canClearSelection(value) {
|
|
this._textScanner.canClearSelection = value;
|
|
}
|
|
|
|
get popup() {
|
|
return this._popup;
|
|
}
|
|
|
|
async prepare() {
|
|
await this.updateOptions();
|
|
try {
|
|
const {zoomFactor} = await yomichan.api.getZoom();
|
|
this._pageZoomFactor = zoomFactor;
|
|
} catch (e) {
|
|
// Ignore exceptions which may occur due to being on an unsupported page (e.g. about:blank)
|
|
}
|
|
|
|
this._textScanner.prepare();
|
|
|
|
window.addEventListener('resize', this._onResize.bind(this), false);
|
|
DocumentUtil.addFullscreenChangeEventListener(this._updatePopup.bind(this));
|
|
|
|
const visualViewport = window.visualViewport;
|
|
if (visualViewport !== null && typeof visualViewport === 'object') {
|
|
visualViewport.addEventListener('scroll', this._onVisualViewportScroll.bind(this));
|
|
visualViewport.addEventListener('resize', this._onVisualViewportResize.bind(this));
|
|
}
|
|
|
|
yomichan.on('optionsUpdated', this.updateOptions.bind(this));
|
|
yomichan.on('zoomChanged', this._onZoomChanged.bind(this));
|
|
yomichan.on('closePopups', this._onClosePopups.bind(this));
|
|
chrome.runtime.onMessage.addListener(this._onRuntimeMessage.bind(this));
|
|
|
|
this._textScanner.on('clear', this._onTextScannerClear.bind(this));
|
|
this._textScanner.on('searched', this._onSearched.bind(this));
|
|
|
|
yomichan.crossFrame.registerHandlers([
|
|
['closePopup', {async: false, handler: this._onApiClosePopup.bind(this)}],
|
|
['copySelection', {async: false, handler: this._onApiCopySelection.bind(this)}],
|
|
['getSelectionText', {async: false, handler: this._onApiGetSelectionText.bind(this)}],
|
|
['getPopupInfo', {async: false, handler: this._onApiGetPopupInfo.bind(this)}],
|
|
['getPageInfo', {async: false, handler: this._onApiGetPageInfo.bind(this)}]
|
|
]);
|
|
|
|
this._updateContentScale();
|
|
this._signalFrontendReady();
|
|
}
|
|
|
|
setDisabledOverride(disabled) {
|
|
this._disabledOverride = disabled;
|
|
this._updateTextScannerEnabled();
|
|
}
|
|
|
|
setOptionsContextOverride(optionsContext) {
|
|
this._optionsContextOverride = optionsContext;
|
|
}
|
|
|
|
async setTextSource(textSource) {
|
|
this._textScanner.setCurrentTextSource(null);
|
|
await this._textScanner.search(textSource);
|
|
}
|
|
|
|
async updateOptions() {
|
|
try {
|
|
await this._updateOptionsInternal();
|
|
} catch (e) {
|
|
if (!yomichan.isExtensionUnloaded) {
|
|
throw e;
|
|
}
|
|
}
|
|
}
|
|
|
|
showContentCompleted() {
|
|
return this._lastShowPromise;
|
|
}
|
|
|
|
// Message handlers
|
|
|
|
_onMessageRequestFrontendReadyBroadcast({frameId}) {
|
|
this._signalFrontendReady(frameId);
|
|
}
|
|
|
|
// Action handlers
|
|
|
|
_onActionScanSelectedText() {
|
|
this._scanSelectedText(false);
|
|
}
|
|
|
|
_onActionScanTextAtCaret() {
|
|
this._scanSelectedText(true);
|
|
}
|
|
|
|
// API message handlers
|
|
|
|
_onApiGetUrl() {
|
|
return window.location.href;
|
|
}
|
|
|
|
_onApiClosePopup() {
|
|
this._clearSelection(false);
|
|
}
|
|
|
|
_onApiCopySelection() {
|
|
// This will not work on Firefox if a popup has focus, which is usually the case when this function is called.
|
|
document.execCommand('copy');
|
|
}
|
|
|
|
_onApiGetSelectionText() {
|
|
return document.getSelection().toString();
|
|
}
|
|
|
|
_onApiGetPopupInfo() {
|
|
return {
|
|
popupId: (this._popup !== null ? this._popup.id : null)
|
|
};
|
|
}
|
|
|
|
_onApiGetPageInfo() {
|
|
return {
|
|
url: window.location.href,
|
|
documentTitle: document.title
|
|
};
|
|
}
|
|
|
|
async _onApiSetAllVisibleOverride({value, priority, awaitFrame}) {
|
|
const result = await this._popupFactory.setAllVisibleOverride(value, priority);
|
|
if (awaitFrame) {
|
|
await promiseAnimationFrame(100);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
async _onApiClearAllVisibleOverride({token}) {
|
|
return await this._popupFactory.clearAllVisibleOverride(token);
|
|
}
|
|
|
|
// Private
|
|
|
|
_onResize() {
|
|
this._updatePopupPosition();
|
|
}
|
|
|
|
_onRuntimeMessage({action, params}, sender, callback) {
|
|
const messageHandler = this._runtimeMessageHandlers.get(action);
|
|
if (typeof messageHandler === 'undefined') { return false; }
|
|
return invokeMessageHandler(messageHandler, params, callback, sender);
|
|
}
|
|
|
|
_onZoomChanged({newZoomFactor}) {
|
|
this._pageZoomFactor = newZoomFactor;
|
|
this._updateContentScale();
|
|
}
|
|
|
|
_onClosePopups() {
|
|
this._clearSelection(true);
|
|
}
|
|
|
|
_onVisualViewportScroll() {
|
|
this._updatePopupPosition();
|
|
}
|
|
|
|
_onVisualViewportResize() {
|
|
this._updateContentScale();
|
|
}
|
|
|
|
_onTextScannerClear() {
|
|
this._clearSelection(false);
|
|
}
|
|
|
|
_onSearched({type, dictionaryEntries, sentence, inputInfo: {eventType, passive, detail}, textSource, optionsContext, detail: {documentTitle}, error}) {
|
|
const scanningOptions = this._options.scanning;
|
|
|
|
if (error !== null) {
|
|
if (yomichan.isExtensionUnloaded) {
|
|
if (textSource !== null && !passive) {
|
|
this._showExtensionUnloaded(textSource);
|
|
}
|
|
} else {
|
|
log.error(error);
|
|
}
|
|
} if (type !== null) {
|
|
this._stopClearSelectionDelayed();
|
|
let focus = (eventType === 'mouseMove');
|
|
if (isObject(detail)) {
|
|
const focus2 = detail.focus;
|
|
if (typeof focus2 === 'boolean') { focus = focus2; }
|
|
}
|
|
this._showContent(textSource, focus, dictionaryEntries, type, sentence, documentTitle, optionsContext);
|
|
} else {
|
|
if (scanningOptions.autoHideResults) {
|
|
this._clearSelectionDelayed(scanningOptions.hideDelay, false);
|
|
}
|
|
}
|
|
}
|
|
|
|
_onPopupFramePointerOver() {
|
|
this._isPointerOverPopup = true;
|
|
this._stopClearSelectionDelayed();
|
|
}
|
|
|
|
_onPopupFramePointerOut() {
|
|
this._isPointerOverPopup = false;
|
|
}
|
|
|
|
_clearSelection(passive) {
|
|
this._stopClearSelectionDelayed();
|
|
if (this._popup !== null) {
|
|
this._popup.clearAutoPlayTimer();
|
|
this._popup.hide(!passive);
|
|
this._isPointerOverPopup = false;
|
|
}
|
|
this._textScanner.clearSelection();
|
|
}
|
|
|
|
_clearSelectionDelayed(delay, restart, passive) {
|
|
if (!this._textScanner.hasSelection()) { return; }
|
|
if (delay > 0) {
|
|
if (this._clearSelectionTimer !== null && !restart) { return; } // Already running
|
|
this._stopClearSelectionDelayed();
|
|
this._clearSelectionTimer = setTimeout(() => {
|
|
this._clearSelectionTimer = null;
|
|
if (this._isPointerOverPopup) { return; }
|
|
this._clearSelection(passive);
|
|
}, delay);
|
|
} else {
|
|
this._clearSelection(passive);
|
|
}
|
|
}
|
|
|
|
_stopClearSelectionDelayed() {
|
|
if (this._clearSelectionTimer !== null) {
|
|
clearTimeout(this._clearSelectionTimer);
|
|
this._clearSelectionTimer = null;
|
|
}
|
|
}
|
|
|
|
async _updateOptionsInternal() {
|
|
const optionsContext = await this._getOptionsContext();
|
|
const options = await yomichan.api.optionsGet(optionsContext);
|
|
const {scanning: scanningOptions, sentenceParsing: sentenceParsingOptions} = options;
|
|
this._options = options;
|
|
|
|
this._hotkeyHandler.setHotkeys('web', options.inputs.hotkeys);
|
|
|
|
await this._updatePopup();
|
|
|
|
const preventMiddleMouse = this._getPreventMiddleMouseValueForPageType(scanningOptions.preventMiddleMouse);
|
|
this._textScanner.setOptions({
|
|
inputs: scanningOptions.inputs,
|
|
deepContentScan: scanningOptions.deepDomScan,
|
|
selectText: scanningOptions.selectText,
|
|
delay: scanningOptions.delay,
|
|
touchInputEnabled: scanningOptions.touchInputEnabled,
|
|
pointerEventsEnabled: scanningOptions.pointerEventsEnabled,
|
|
scanLength: scanningOptions.length,
|
|
layoutAwareScan: scanningOptions.layoutAwareScan,
|
|
preventMiddleMouse,
|
|
sentenceParsingOptions
|
|
});
|
|
this._updateTextScannerEnabled();
|
|
|
|
if (this._pageType !== 'web') {
|
|
const excludeSelectors = ['.scan-disable', '.scan-disable *'];
|
|
if (!scanningOptions.enableOnPopupExpressions) {
|
|
excludeSelectors.push('.source-text', '.source-text *');
|
|
}
|
|
this._textScanner.excludeSelector = excludeSelectors.join(',');
|
|
}
|
|
|
|
this._updateContentScale();
|
|
|
|
await this._textScanner.searchLast();
|
|
}
|
|
|
|
async _updatePopup() {
|
|
const {usePopupWindow, showIframePopupsInRootFrame} = this._options.general;
|
|
const isIframe = !this._useProxyPopup && (window !== window.parent);
|
|
|
|
const currentPopup = this._popup;
|
|
|
|
let popupPromise;
|
|
if (usePopupWindow && this._canUseWindowPopup) {
|
|
popupPromise = this._popupCache.get('window');
|
|
if (typeof popupPromise === 'undefined') {
|
|
popupPromise = this._getPopupWindow();
|
|
this._popupCache.set('window', popupPromise);
|
|
}
|
|
} else if (
|
|
isIframe &&
|
|
showIframePopupsInRootFrame &&
|
|
DocumentUtil.getFullscreenElement() === null &&
|
|
this._allowRootFramePopupProxy
|
|
) {
|
|
popupPromise = this._popupCache.get('iframe');
|
|
if (typeof popupPromise === 'undefined') {
|
|
popupPromise = this._getIframeProxyPopup();
|
|
this._popupCache.set('iframe', popupPromise);
|
|
}
|
|
} else if (this._useProxyPopup) {
|
|
popupPromise = this._popupCache.get('proxy');
|
|
if (typeof popupPromise === 'undefined') {
|
|
popupPromise = this._getProxyPopup();
|
|
this._popupCache.set('proxy', popupPromise);
|
|
}
|
|
} else {
|
|
popupPromise = this._popupCache.get('default');
|
|
if (typeof popupPromise === 'undefined') {
|
|
popupPromise = this._getDefaultPopup();
|
|
this._popupCache.set('default', popupPromise);
|
|
}
|
|
}
|
|
|
|
// The token below is used as a unique identifier to ensure that a new _updatePopup call
|
|
// hasn't been started during the await.
|
|
const token = {};
|
|
this._updatePopupToken = token;
|
|
const popup = await popupPromise;
|
|
const optionsContext = await this._getOptionsContext();
|
|
if (this._updatePopupToken !== token) { return; }
|
|
if (popup !== null) {
|
|
await popup.setOptionsContext(optionsContext);
|
|
}
|
|
if (this._updatePopupToken !== token) { return; }
|
|
|
|
if (popup !== currentPopup) {
|
|
this._clearSelection(true);
|
|
}
|
|
|
|
this._popupEventListeners.removeAllEventListeners();
|
|
this._popup = popup;
|
|
if (popup !== null) {
|
|
this._popupEventListeners.on(popup, 'framePointerOver', this._onPopupFramePointerOver.bind(this));
|
|
this._popupEventListeners.on(popup, 'framePointerOut', this._onPopupFramePointerOut.bind(this));
|
|
}
|
|
this._isPointerOverPopup = false;
|
|
}
|
|
|
|
async _getDefaultPopup() {
|
|
const isXmlDocument = (typeof XMLDocument !== 'undefined' && document instanceof XMLDocument);
|
|
if (isXmlDocument) {
|
|
return null;
|
|
}
|
|
|
|
return await this._popupFactory.getOrCreatePopup({
|
|
frameId: this._frameId,
|
|
depth: this._depth,
|
|
childrenSupported: this._childrenSupported
|
|
});
|
|
}
|
|
|
|
async _getProxyPopup() {
|
|
return await this._popupFactory.getOrCreatePopup({
|
|
frameId: this._parentFrameId,
|
|
depth: this._depth,
|
|
parentPopupId: this._parentPopupId,
|
|
childrenSupported: this._childrenSupported
|
|
});
|
|
}
|
|
|
|
async _getIframeProxyPopup() {
|
|
const targetFrameId = 0; // Root frameId
|
|
try {
|
|
await this._waitForFrontendReady(targetFrameId, 10000);
|
|
} catch (e) {
|
|
// Root frame not available
|
|
return await this._getDefaultPopup();
|
|
}
|
|
|
|
const {popupId} = await yomichan.crossFrame.invoke(targetFrameId, 'getPopupInfo');
|
|
if (popupId === null) {
|
|
return null;
|
|
}
|
|
|
|
const popup = await this._popupFactory.getOrCreatePopup({
|
|
frameId: targetFrameId,
|
|
id: popupId,
|
|
childrenSupported: this._childrenSupported
|
|
});
|
|
popup.on('offsetNotFound', () => {
|
|
this._allowRootFramePopupProxy = false;
|
|
this._updatePopup();
|
|
});
|
|
return popup;
|
|
}
|
|
|
|
async _getPopupWindow() {
|
|
return await this._popupFactory.getOrCreatePopup({
|
|
depth: this._depth,
|
|
popupWindow: true,
|
|
childrenSupported: this._childrenSupported
|
|
});
|
|
}
|
|
|
|
_ignoreElements() {
|
|
if (this._popup !== null) {
|
|
const container = this._popup.container;
|
|
if (container !== null) {
|
|
return [container];
|
|
}
|
|
}
|
|
return [];
|
|
}
|
|
|
|
async _ignorePoint(x, y) {
|
|
try {
|
|
return this._popup !== null && await this._popup.containsPoint(x, y);
|
|
} catch (e) {
|
|
if (!yomichan.isExtensionUnloaded) {
|
|
throw e;
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
|
|
_showExtensionUnloaded(textSource) {
|
|
if (textSource === null) {
|
|
textSource = this._textScanner.getCurrentTextSource();
|
|
if (textSource === null) { return; }
|
|
}
|
|
this._showPopupContent(textSource, null);
|
|
}
|
|
|
|
_showContent(textSource, focus, dictionaryEntries, type, sentence, documentTitle, optionsContext) {
|
|
const query = textSource.text();
|
|
const {url} = optionsContext;
|
|
const details = {
|
|
focus,
|
|
history: false,
|
|
params: {
|
|
type,
|
|
query,
|
|
wildcards: 'off'
|
|
},
|
|
state: {
|
|
focusEntry: 0,
|
|
optionsContext,
|
|
url,
|
|
sentence,
|
|
documentTitle
|
|
},
|
|
content: {
|
|
dictionaryEntries,
|
|
contentOrigin: {
|
|
tabId: this._tabId,
|
|
frameId: this._frameId
|
|
}
|
|
}
|
|
};
|
|
if (textSource instanceof TextSourceElement && textSource.fullContent !== query) {
|
|
details.params.full = textSource.fullContent;
|
|
details.params['full-visible'] = 'true';
|
|
}
|
|
this._showPopupContent(textSource, optionsContext, details);
|
|
}
|
|
|
|
_showPopupContent(textSource, optionsContext, details=null) {
|
|
this._lastShowPromise = (
|
|
this._popup !== null ?
|
|
this._popup.showContent(
|
|
{
|
|
optionsContext,
|
|
elementRect: textSource.getRect(),
|
|
writingMode: textSource.getWritingMode()
|
|
},
|
|
details
|
|
) :
|
|
Promise.resolve()
|
|
);
|
|
this._lastShowPromise.catch((error) => {
|
|
if (yomichan.isExtensionUnloaded) { return; }
|
|
log.error(error);
|
|
});
|
|
return this._lastShowPromise;
|
|
}
|
|
|
|
_updateTextScannerEnabled() {
|
|
const enabled = (this._options !== null && this._options.general.enable && !this._disabledOverride);
|
|
if (enabled === this._textScanner.isEnabled()) { return; }
|
|
this._textScanner.setEnabled(enabled);
|
|
this._clearSelection(true);
|
|
}
|
|
|
|
_updateContentScale() {
|
|
const {popupScalingFactor, popupScaleRelativeToPageZoom, popupScaleRelativeToVisualViewport} = this._options.general;
|
|
let contentScale = popupScalingFactor;
|
|
if (popupScaleRelativeToPageZoom) {
|
|
contentScale /= this._pageZoomFactor;
|
|
}
|
|
if (popupScaleRelativeToVisualViewport) {
|
|
const visualViewport = window.visualViewport;
|
|
const visualViewportScale = (visualViewport !== null && typeof visualViewport === 'object' ? visualViewport.scale : 1.0);
|
|
contentScale /= visualViewportScale;
|
|
}
|
|
if (contentScale === this._contentScale) { return; }
|
|
|
|
this._contentScale = contentScale;
|
|
if (this._popup !== null) {
|
|
this._popup.setContentScale(this._contentScale);
|
|
}
|
|
this._updatePopupPosition();
|
|
}
|
|
|
|
async _updatePopupPosition() {
|
|
const textSource = this._textScanner.getCurrentTextSource();
|
|
if (
|
|
textSource !== null &&
|
|
this._popup !== null &&
|
|
await this._popup.isVisible()
|
|
) {
|
|
this._showPopupContent(textSource, null);
|
|
}
|
|
}
|
|
|
|
_signalFrontendReady(targetFrameId=null) {
|
|
const params = {frameId: this._frameId};
|
|
if (targetFrameId === null) {
|
|
yomichan.api.broadcastTab('frontendReady', params);
|
|
} else {
|
|
yomichan.api.sendMessageToFrame(targetFrameId, 'frontendReady', params);
|
|
}
|
|
}
|
|
|
|
async _waitForFrontendReady(frameId, timeout) {
|
|
return new Promise((resolve, reject) => {
|
|
let timeoutId = null;
|
|
|
|
const cleanup = () => {
|
|
if (timeoutId !== null) {
|
|
clearTimeout(timeoutId);
|
|
timeoutId = null;
|
|
}
|
|
chrome.runtime.onMessage.removeListener(onMessage);
|
|
};
|
|
const onMessage = (message, sender, sendResponse) => {
|
|
try {
|
|
const {action, params} = message;
|
|
if (action === 'frontendReady' && params.frameId === frameId) {
|
|
cleanup();
|
|
resolve();
|
|
sendResponse();
|
|
}
|
|
} catch (e) {
|
|
// NOP
|
|
}
|
|
};
|
|
|
|
if (timeout !== null) {
|
|
timeoutId = setTimeout(() => {
|
|
timeoutId = null;
|
|
cleanup();
|
|
reject(new Error(`Wait for frontend ready timed out after ${timeout}ms`));
|
|
}, timeout);
|
|
}
|
|
|
|
chrome.runtime.onMessage.addListener(onMessage);
|
|
yomichan.api.broadcastTab('requestFrontendReadyBroadcast', {frameId: this._frameId});
|
|
});
|
|
}
|
|
|
|
_getPreventMiddleMouseValueForPageType(preventMiddleMouseOptions) {
|
|
switch (this._pageType) {
|
|
case 'web': return preventMiddleMouseOptions.onWebPages;
|
|
case 'popup': return preventMiddleMouseOptions.onPopupPages;
|
|
case 'search': return preventMiddleMouseOptions.onSearchPages;
|
|
default: return false;
|
|
}
|
|
}
|
|
|
|
async _getOptionsContext() {
|
|
let optionsContext = this._optionsContextOverride;
|
|
if (optionsContext === null) {
|
|
optionsContext = (await this._getSearchContext()).optionsContext;
|
|
}
|
|
return optionsContext;
|
|
}
|
|
|
|
async _getSearchContext() {
|
|
let url = window.location.href;
|
|
let documentTitle = document.title;
|
|
if (this._useProxyPopup) {
|
|
try {
|
|
({url, documentTitle} = await yomichan.crossFrame.invoke(this._parentFrameId, 'getPageInfo', {}));
|
|
} catch (e) {
|
|
// NOP
|
|
}
|
|
}
|
|
|
|
let optionsContext = this._optionsContextOverride;
|
|
if (optionsContext === null) {
|
|
optionsContext = {depth: this._depth, url};
|
|
}
|
|
|
|
return {
|
|
optionsContext,
|
|
detail: {documentTitle}
|
|
};
|
|
}
|
|
|
|
async _scanSelectedText(allowEmptyRange) {
|
|
const range = this._getFirstSelectionRange(allowEmptyRange);
|
|
if (range === null) { return false; }
|
|
const source = new TextSourceRange(range, range.toString(), null, null);
|
|
await this._textScanner.search(source, {focus: true, restoreSelection: true});
|
|
return true;
|
|
}
|
|
|
|
_getFirstSelectionRange(allowEmptyRange) {
|
|
const selection = window.getSelection();
|
|
for (let i = 0, ii = selection.rangeCount; i < ii; ++i) {
|
|
const range = selection.getRangeAt(i);
|
|
if (range.toString().length > 0 || allowEmptyRange) {
|
|
return range;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
}
|