morgan pushed to branch mullvad-browser-128.9.0esr-14.5-1 at The Tor Project / Applications / Mullvad Browser

Commits: f222b21b by hackademix at 2025-04-14T18:51:21+00:00 fixup! BB 41919: Letterboxing, add temporarily visible web content-size indicator on window resizing.

BB 43632: Letterboxing, always show the correct size for the active tab on resizing. BB 43642: New tab shows letterboxing size indicator.

- - - - -

2 changed files:

- browser/themes/shared/tabbrowser/content-area.css - toolkit/components/resistfingerprinting/RFPHelper.sys.mjs

Changes:

===================================== browser/themes/shared/tabbrowser/content-area.css ===================================== @@ -124,6 +124,7 @@ direction: ltr; }

+ .browserStack:not(.letterboxingStatus) &[type=letterboxingStatus], .exclude-letterboxing &[type=letterboxingStatus], &[inactive], :root[inDOMFullscreen] &:not([type=overLink]) {

===================================== toolkit/components/resistfingerprinting/RFPHelper.sys.mjs ===================================== @@ -717,13 +717,7 @@ class _RFPHelper { borderRadius === 0 ? "hidden" : "", "--letterboxing-border-radius": borderRadius, }); - - if ( - isResize && - this.letterboxingEnabled && - (parentWidth > lastRoundedSize.width || - parentHeight > lastRoundedSize.height) - ) { + if (win.gBrowser.selectedBrowser == aBrowser) { const updateStatus = async args => { win.XULBrowserWindow.letterboxingStatus = args ? await win.document.l10n.formatValue( @@ -733,9 +727,24 @@ class _RFPHelper { : ""; win.StatusPanel.update(); }; - updateStatus(lastRoundedSize); - win.clearTimeout(win._letterboxingStatusTimeout); - win._letterboxingStatusTimeout = win.setTimeout(updateStatus, 1000); + if ( + isResize && + this.letterboxingEnabled && + (parentWidth > lastRoundedSize.width || + parentHeight > lastRoundedSize.height) + ) { + const clazz = "letterboxingStatus"; + const currentParent = win.document.getElementsByClassName(clazz)[0]; + if (currentParent != browserParent) { + currentParent?.classList.remove(clazz); + browserParent.classList.add(clazz); + } + updateStatus(lastRoundedSize); + win.clearTimeout(win._letterboxingStatusTimeout); + win._letterboxingStatusTimeout = win.setTimeout(updateStatus, 1000); + } else { + updateStatus(""); + } } }

@@ -840,9 +849,23 @@ class _RFPHelper { const resizeObserver = (aWindow._rfpResizeObserver = new aWindow.ResizeObserver(entries => { const context = { isResize: true }; - for (let { target } of entries) { + if (entries.length == 1) { + const { target } = entries[0]; + if (!("_letterboxingNew" in target)) { + target._letterboxingNew = !entries[0].contentRect.width; + if (target._letterboxingNew) { + return; + } + context.isResize = false; + } else if (target._letterboxingNew) { + target._letterboxingNew = false; + context.isResize = false; + } + } + + for (const { target } of entries) { this._roundOrResetContentSize( - target.querySelector("browser"), + target.getElementsByTagName("browser")[0], context ); }

View it on GitLab: https://gitlab.torproject.org/tpo/applications/mullvad-browser/-/commit/f222...