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Fix google docs (#473)
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* Add support for content script execution world

* Update manifest version to support world parameter in Chromium browsers

* Update google docs injection

* Reuse code for registration

* Add info
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toasted-nutbread authored Dec 29, 2023
1 parent d90d408 commit 0a68020
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Showing 7 changed files with 75 additions and 68 deletions.
2 changes: 1 addition & 1 deletion dev/data/manifest-variants.json
Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@
]
}
],
"minimum_chrome_version": "96.0.0.0",
"minimum_chrome_version": "102.0.0.0",
"options_ui": {
"page": "settings.html",
"open_in_tab": true
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37 changes: 28 additions & 9 deletions ext/js/accessibility/accessibility-controller.js
Original file line number Diff line number Diff line change
Expand Up @@ -86,20 +86,39 @@ export class AccessibilityController {
try {
if (forceGoogleDocsHtmlRenderingAny) {
if (await isContentScriptRegistered(id)) { return; }
/** @type {import('script-manager').RegistrationDetails} */
const details = {
allFrames: true,
matches: ['*://docs.google.com/*'],
runAt: 'document_start',
js: ['js/accessibility/google-docs.js']
};
await registerContentScript(id, details);
try {
await this._registerGoogleDocsContentScript(id, false);
} catch (e) {
// Firefox doesn't support `world` field and will throw an error.
// In this case, use the xray vision version.
await this._registerGoogleDocsContentScript(id, true);
}
} else {
await unregisterContentScript(id);
}
} catch (e) {
log.error(e);
}
}
}

/**
* @param {string} id
* @param {boolean} xray
* @returns {Promise<void>}
*/
_registerGoogleDocsContentScript(id, xray) {
/** @type {import('script-manager').RegistrationDetails} */
const details = {
allFrames: true,
matches: ['*://docs.google.com/*'],
runAt: 'document_start',
js: [
xray ?
'js/accessibility/google-docs-xray.js' :
'js/accessibility/google-docs.js'
]
};
if (!xray) { details.world = 'MAIN'; }
return registerContentScript(id, details);
}
}
30 changes: 30 additions & 0 deletions ext/js/accessibility/google-docs-xray.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
/*
* Copyright (C) 2023 Yomitan 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/>.
*/

/** Entry point. */
function main() {
/** @type {Window} */
// @ts-expect-error - Firefox Xray vision
const window2 = window.wrappedJSObject;
if (!(typeof window2 === 'object' && window2 !== null)) { return; }
// The extension ID below is on an allow-list that is used on the Google Docs webpage.
// @ts-expect-error - Adding a property to the global object
// eslint-disable-next-line no-underscore-dangle
window2._docs_annotate_canvas_by_ext = 'ogmnaimimemjmbakcfefmnahgdfhfami';
}

main();
61 changes: 4 additions & 57 deletions ext/js/accessibility/google-docs.js
Original file line number Diff line number Diff line change
@@ -1,6 +1,5 @@
/*
* Copyright (C) 2023 Yomitan Authors
* Copyright (C) 2021-2022 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
Expand All @@ -16,59 +15,7 @@
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/

(async () => {
// Reentrant check
// @ts-expect-error - Checking a property to the global object
if (self.googleDocsAccessibilitySetup) { return; }
// @ts-expect-error - Adding a property to the global object
self.googleDocsAccessibilitySetup = true;

/**
* @template {import('api').ApiNames} TAction
* @template {import('api').ApiParams<TAction>} TParams
* @param {TAction} action
* @param {TParams} params
* @returns {Promise<import('api').ApiReturn<TAction>>}
*/
const invokeApi = (action, params) => {
return new Promise((resolve, reject) => {
chrome.runtime.sendMessage({action, params}, (response) => {
void chrome.runtime.lastError;
if (typeof response !== 'object' || response === null) {
reject(new Error('Unexpected response'));
} else if (typeof response.error !== 'undefined') {
reject(new Error('Invalid response'));
} else {
resolve(response.result);
}
});
});
};

const optionsContext = {depth: 0, url: location.href};
/** @type {import('api').ApiReturn<'optionsGet'>} */
let options;
try {
options = await invokeApi('optionsGet', {optionsContext});
} catch (e) {
return;
}

if (!options.accessibility.forceGoogleDocsHtmlRendering) { return; }

// The extension ID below is on an allow-list that is used on the Google Docs webpage.
/* eslint-disable */
// @ts-expect-error : Adding a property to the global object
const inject = () => { window._docs_annotate_canvas_by_ext = 'ogmnaimimemjmbakcfefmnahgdfhfami'; };
/* eslint-enable */

let parent = document.head;
if (parent === null) {
parent = document.documentElement;
if (parent === null) { return; }
}
const script = document.createElement('script');
script.textContent = `(${inject.toString()})();`;
parent.appendChild(script);
parent.removeChild(script);
})();
// The extension ID below is on an allow-list that is used on the Google Docs webpage.
// @ts-expect-error - Adding a property to the global object
// eslint-disable-next-line no-underscore-dangle
window._docs_annotate_canvas_by_ext = 'ogmnaimimemjmbakcfefmnahgdfhfami';
5 changes: 4 additions & 1 deletion ext/js/background/script-manager.js
Original file line number Diff line number Diff line change
Expand Up @@ -129,7 +129,7 @@ export async function unregisterContentScript(id) {
* @returns {chrome.scripting.RegisteredContentScript}
*/
function createContentScriptRegistrationOptions(details, id) {
const {css, js, allFrames, matches, runAt} = details;
const {css, js, allFrames, matches, runAt, world} = details;
/** @type {chrome.scripting.RegisteredContentScript} */
const options = {
id: id,
Expand All @@ -150,5 +150,8 @@ function createContentScriptRegistrationOptions(details, id) {
if (typeof runAt !== 'undefined') {
options.runAt = runAt;
}
if (typeof world !== 'undefined') {
options.world = world;
}
return options;
}
4 changes: 4 additions & 0 deletions ext/settings.html
Original file line number Diff line number Diff line change
Expand Up @@ -2146,6 +2146,10 @@ <h1>Yomitan Settings</h1>
Enabling this option will force Google Docs webpages to expose some additional text
information which should allow Yomitan to still work.
</p>
<p class="warning-text">
If any profile has this setting enabled, compatibility mode will be activated;
profile conditions are ignored.
</p>
<p class="danger-text">
Google has changed this compatibility implementation several times, and the changes do not seem to be announced or documented.
Therefore, it is possible that this feature could stop working at any time the future without warning.
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4 changes: 4 additions & 0 deletions types/ext/script-manager.d.ts
Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,8 @@ export type RegistrationDetails = {
css?: string[];
/** List of script paths. */
js?: string[];
/** The execution world for the script. */
world?: ExecutionWorld;
};

export type ContentScriptInjectionDetails = {
Expand All @@ -39,3 +41,5 @@ export type ContentScriptInjectionDetails = {
js?: string[];
urlRegex: RegExp | null;
};

export type ExecutionWorld = 'MAIN' | 'ISOLATED';

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