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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const { GeckoViewActorChild } = ChromeUtils.import(
"resource://gre/modules/GeckoViewActorChild.jsm"
);
var { XPCOMUtils } = ChromeUtils.import(
"resource://gre/modules/XPCOMUtils.jsm"
);
var { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
XPCOMUtils.defineLazyModuleGetters(this, {
ManifestObtainer: "resource://gre/modules/ManifestObtainer.jsm",
});
var EXPORTED_SYMBOLS = ["ContentDelegateChild"];
class ContentDelegateChild extends GeckoViewActorChild {
notifyParentOfViewportFit() {
if (this.triggerViewportFitChange) {
this.contentWindow.cancelIdleCallback(this.triggerViewportFitChange);
}
this.triggerViewportFitChange = this.contentWindow.requestIdleCallback(
() => {
this.triggerViewportFitChange = null;
const viewportFit = this.contentWindow.windowUtils.getViewportFitInfo();
if (this.lastViewportFit === viewportFit) {
return;
}
this.lastViewportFit = viewportFit;
this.eventDispatcher.sendRequest({
type: "GeckoView:DOMMetaViewportFit",
viewportfit: viewportFit,
});
}
);
}
// eslint-disable-next-line complexity
handleEvent(aEvent) {
debug`handleEvent: ${aEvent.type}`;
if (!this.isContentWindow) {
// This not a GeckoView-controlled window
return;
}
switch (aEvent.type) {
case "contextmenu": {
function nearestParentAttribute(aNode, aAttribute) {
while (
aNode &&
aNode.hasAttribute &&
!aNode.hasAttribute(aAttribute)
) {
aNode = aNode.parentNode;
}
return aNode && aNode.getAttribute && aNode.getAttribute(aAttribute);
}
function createAbsoluteUri(aBaseUri, aUri) {
if (!aUri || !aBaseUri || !aBaseUri.displaySpec) {
return null;
}
return Services.io.newURI(aUri, null, aBaseUri).displaySpec;
}
const node = aEvent.composedTarget;
const baseUri = node.ownerDocument.baseURIObject;
const uri = createAbsoluteUri(
baseUri,
nearestParentAttribute(node, "href")
);
const title = nearestParentAttribute(node, "title");
const alt = nearestParentAttribute(node, "alt");
const elementType = ChromeUtils.getClassName(node);
const isImage = elementType === "HTMLImageElement";
const isMedia =
elementType === "HTMLVideoElement" ||
elementType === "HTMLAudioElement";
const elementSrc =
(isImage || isMedia) && (node.currentSrc || node.src);
if (uri || isImage || isMedia) {
const msg = {
type: "GeckoView:ContextMenu",
screenX: aEvent.screenX,
screenY: aEvent.screenY,
baseUri: (baseUri && baseUri.displaySpec) || null,
uri,
title,
alt,
elementType,
elementSrc: elementSrc || null,
};
this.eventDispatcher.sendRequest(msg);
aEvent.preventDefault();
}
break;
}
case "MozDOMFullscreen:Request": {
this.sendAsyncMessage("GeckoView:DOMFullscreenRequest", {});
break;
}
case "MozDOMFullscreen:Entered":
case "MozDOMFullscreen:Exited":
// Content may change fullscreen state by itself, and we should ensure
// that the parent always exits fullscreen when content has left
// full screen mode.
if (this.contentWindow?.document.fullscreenElement) {
break;
}
// fall-through
case "MozDOMFullscreen:Exit":
this.sendAsyncMessage("GeckoView:DOMFullscreenExit", {});
break;
case "DOMMetaViewportFitChanged":
if (aEvent.originalTarget.ownerGlobal == this.contentWindow) {
this.notifyParentOfViewportFit();
}
break;
case "DOMContentLoaded": {
if (aEvent.originalTarget.ownerGlobal == this.contentWindow) {
// If loaded content doesn't have viewport-fit, parent still
// uses old value of previous content.
this.notifyParentOfViewportFit();
}
if (this.contentWindow !== this.contentWindow?.top) {
// Only check WebApp manifest on the top level window.
return;
}
this.contentWindow.requestIdleCallback(async () => {
const manifest = await ManifestObtainer.contentObtainManifest(
this.contentWindow
);
if (manifest) {
this.eventDispatcher.sendRequest({
type: "GeckoView:WebAppManifest",
manifest,
});
}
});
break;
}
case "MozFirstContentfulPaint": {
this.eventDispatcher.sendRequest({
type: "GeckoView:FirstContentfulPaint",
});
break;
}
case "MozPaintStatusReset": {
this.eventDispatcher.sendRequest({
type: "GeckoView:PaintStatusReset",
});
break;
}
}
}
}
const { debug, warn } = ContentDelegateChild.initLogging(
"ContentDelegateChild"
);
|
