corysanin/tubestation
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Bug 1884172 - Use x-moz-nativeimage when copying screenshots to clipboard. r=mconley

Browse Source 
Differential Revision: https://phabricator.services.mozilla.com/D204256
This commit is contained in:
Niklas Baumgardner
2024-03-11 16:18:31 +00:00
parent 0a2f9c1f3a
commit 5b22671ddc
2 changed files with 21 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
browser/components/screenshots/ScreenshotsUtils.sys.mjs
View File

@@ -980,8 +980,23 @@ export var ScreenshotsUtils = {
"@mozilla.org/widget/transferable;1"
].createInstance(Ci.nsITransferable);
transferable.init(null);
transferable.addDataFlavor("image/png");
transferable.setTransferData("image/png", imgDecoded);
// Internal consumers expect the image data to be stored as a
// nsIInputStream. On Linux and Windows, pasted data is directly
// retrieved from the system's native clipboard, and made available
// as a nsIInputStream.
//
// On macOS, nsClipboard::GetNativeClipboardData (nsClipboard.mm) uses
// a cached copy of nsITransferable if available, e.g. when the copy
// was initiated by the same browser instance. To make sure that a
// nsIInputStream is returned instead of the cached imgIContainer,
// the image is exported as as `kNativeImageMime`. Data associated
// with this type is converted to a platform-specific image format
// when written to the clipboard. The type is not used when images
// are read from the clipboard (on all platforms, not just macOS).
// This forces nsClipboard::GetNativeClipboardData to fall back to
// the native clipboard, and return the image as a nsITransferable.
transferable.addDataFlavor("application/x-moz-nativeimage");
transferable.setTransferData("application/x-moz-nativeimage", imgDecoded);
Services.clipboard.setData(
transferable,