1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/*
* Copyright (C) 2019-2020 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 <https://www.gnu.org/licenses/>.
*/
/* global
* FrontendApiSender
*/
class PopupProxy {
constructor(id, depth, parentId, parentFrameId, url) {
this._parentId = parentId;
this._parentFrameId = parentFrameId;
this._id = id;
this._depth = depth;
this._url = url;
this._apiSender = new FrontendApiSender();
this._windowMessageHandlers = new Map([
['getIframeOffset', ({offset, uniqueId}, e) => { return this._onGetIframeOffset(offset, uniqueId, e); }]
]);
window.addEventListener('message', this.onMessage.bind(this), false);
}
// Public properties
get id() {
return this._id;
}
get parent() {
return null;
}
get depth() {
return this._depth;
}
get url() {
return this._url;
}
// Public functions
async prepare() {
const {id} = await this._invokeHostApi('getOrCreatePopup', {id: this._id, parentId: this._parentId});
this._id = id;
}
isProxy() {
return true;
}
broadcastRootPopupInformation() {
// NOP
}
async setOptions(options) {
return await this._invokeHostApi('setOptions', {id: this._id, options});
}
hide(changeFocus) {
this._invokeHostApi('hide', {id: this._id, changeFocus});
}
async isVisible() {
return await this._invokeHostApi('isVisible', {id: this._id});
}
setVisibleOverride(visible) {
this._invokeHostApi('setVisibleOverride', {id: this._id, visible});
}
async containsPoint(x, y) {
if (this._depth === 0) {
[x, y] = await PopupProxy._convertIframePointToRootPagePoint(x, y);
}
return await this._invokeHostApi('containsPoint', {id: this._id, x, y});
}
async showContent(elementRect, writingMode, type=null, details=null) {
let {x, y, width, height} = elementRect;
if (this._depth === 0) {
[x, y] = await PopupProxy._convertIframePointToRootPagePoint(x, y);
}
elementRect = {x, y, width, height};
return await this._invokeHostApi('showContent', {id: this._id, elementRect, writingMode, type, details});
}
async setCustomCss(css) {
return await this._invokeHostApi('setCustomCss', {id: this._id, css});
}
clearAutoPlayTimer() {
this._invokeHostApi('clearAutoPlayTimer', {id: this._id});
}
async setContentScale(scale) {
this._invokeHostApi('setContentScale', {id: this._id, scale});
}
// Window message handlers
onMessage(e) {
const {action, params} = e.data;
const handler = this._windowMessageHandlers.get(action);
if (typeof handler !== 'function') { return; }
handler(params, e);
}
_onGetIframeOffset(offset, uniqueId, e) {
let sourceIframe = null;
for (const iframe of document.querySelectorAll('iframe:not(.yomichan-float)')) {
if (iframe.contentWindow !== e.source) { continue; }
sourceIframe = iframe;
break;
}
if (sourceIframe === null) { return; }
const [forwardedX, forwardedY] = offset;
const {x, y} = sourceIframe.getBoundingClientRect();
offset = [forwardedX + x, forwardedY + y];
window.parent.postMessage({action: 'getIframeOffset', params: {offset, uniqueId}}, '*');
}
// Private
_invokeHostApi(action, params={}) {
if (typeof this._parentFrameId !== 'number') {
return Promise.reject(new Error('Invalid frame'));
}
return this._apiSender.invoke(action, params, `popup-proxy-host#${this._parentFrameId}`);
}
static async _convertIframePointToRootPagePoint(x, y) {
const uniqueId = yomichan.generateId(16);
let frameOffsetResolve = null;
const frameOffsetPromise = new Promise((resolve) => (frameOffsetResolve = resolve));
const runtimeMessageCallback = ({action, params}, sender, callback) => {
if (action === 'iframeOffset' && isObject(params) && params.uniqueId === uniqueId) {
chrome.runtime.onMessage.removeListener(runtimeMessageCallback);
callback();
frameOffsetResolve(params);
return false;
}
};
chrome.runtime.onMessage.addListener(runtimeMessageCallback);
window.parent.postMessage({
action: 'getIframeOffset',
params: {
uniqueId,
offset: [x, y]
}
}, '*');
const {offset} = await frameOffsetPromise;
return offset;
}
}
|