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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /toolkit/actors/AutoScrollParent.sys.mjs
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'toolkit/actors/AutoScrollParent.sys.mjs')
-rw-r--r--toolkit/actors/AutoScrollParent.sys.mjs48
1 files changed, 48 insertions, 0 deletions
diff --git a/toolkit/actors/AutoScrollParent.sys.mjs b/toolkit/actors/AutoScrollParent.sys.mjs
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+/* vim: set ts=2 sw=2 sts=2 et tw=80: */
+/* 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/. */
+
+export class AutoScrollParent extends JSWindowActorParent {
+ receiveMessage(msg) {
+ let browser = this.manager.browsingContext.top.embedderElement;
+ if (!browser) {
+ return null;
+ }
+
+ // If another tab is activated, we shouldn't start autoscroll requested
+ // for the previous active window if and only if the browser is a remote
+ // browser. This is required for web apps which don't prevent default of
+ // middle click after opening a new window. If the active tab is our
+ // documents like about:*, we don't need this check since our documents
+ // should do it correctly.
+ const requestedInForegroundTab = browser.isRemoteBrowser
+ ? Services.focus.focusedElement == browser
+ : true;
+
+ let data = msg.data;
+ switch (msg.name) {
+ case "Autoscroll:Start":
+ // Don't start autoscroll if the tab has already been a background tab.
+ if (!requestedInForegroundTab) {
+ return Promise.resolve({ autoscrollEnabled: false, usingAPZ: false });
+ }
+ return Promise.resolve(browser.startScroll(data));
+ case "Autoscroll:MaybeStartInParent":
+ // Don't start autoscroll if the tab has already been a background tab.
+ if (!requestedInForegroundTab) {
+ return Promise.resolve({ autoscrollEnabled: false, usingAPZ: false });
+ }
+ let parent = this.browsingContext.parent;
+ if (parent) {
+ let actor = parent.currentWindowGlobal.getActor("AutoScroll");
+ actor.sendAsyncMessage("Autoscroll:MaybeStart", data);
+ }
+ break;
+ case "Autoscroll:Cancel":
+ browser.cancelScroll();
+ break;
+ }
+ return null;
+ }
+}