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// Where we save the desktop background to (~/Pictures).
const NS_OSX_PICTURE_DOCUMENTS_DIR = "Pct";
// Paths used to run the CLI command (python script) that is used to
// 1) check the desktop background image matches what we set it to via
// nsIShellService::setDesktopBackground() and
// 2) revert the desktop background image to the OS default
const kPythonPath = "/usr/bin/python";
const kDesktopCheckerScriptPath =
"browser/browser/components/shell/test/mac_desktop_image.py";
const kDefaultBackgroundImage_10_14 =
"/Library/Desktop Pictures/Solid Colors/Teal.png";
const kDefaultBackgroundImage_10_15 =
"/System/Library/Desktop Pictures/Solid Colors/Teal.png";
ChromeUtils.defineESModuleGetters(this, {
FileUtils: "resource://gre/modules/FileUtils.sys.mjs",
});
function getPythonExecutableFile() {
let python = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
python.initWithPath(kPythonPath);
return python;
}
function createProcess() {
return Cc["@mozilla.org/process/util;1"].createInstance(Ci.nsIProcess);
}
// Use a CLI command to set the desktop background to |imagePath|. Returns the
// exit code of the CLI command which reflects whether or not the background
// image was successfully set. Returns 0 on success.
function setDesktopBackgroundCLI(imagePath) {
let setBackgroundProcess = createProcess();
setBackgroundProcess.init(getPythonExecutableFile());
let args = [
kDesktopCheckerScriptPath,
"--verbose",
"--set-background-image",
imagePath,
];
setBackgroundProcess.run(true, args, args.length);
return setBackgroundProcess.exitValue;
}
// Check the desktop background is |imagePath| using a CLI command.
// Returns the exit code of the CLI command which reflects whether or not
// the provided image path matches the path of the current desktop background
// image. A return value of 0 indicates success/match.
function checkDesktopBackgroundCLI(imagePath) {
let checkBackgroundProcess = createProcess();
checkBackgroundProcess.init(getPythonExecutableFile());
let args = [
kDesktopCheckerScriptPath,
"--verbose",
"--check-background-image",
imagePath,
];
checkBackgroundProcess.run(true, args, args.length);
return checkBackgroundProcess.exitValue;
}
// Use the python script to set/check the desktop background is |imagePath|
function setAndCheckDesktopBackgroundCLI(imagePath) {
Assert.ok(FileUtils.File(imagePath).exists(), `${imagePath} exists`);
let setExitCode = setDesktopBackgroundCLI(imagePath);
Assert.ok(setExitCode == 0, `Setting background via CLI to ${imagePath}`);
let checkExitCode = checkDesktopBackgroundCLI(imagePath);
Assert.ok(checkExitCode == 0, `Checking background via CLI is ${imagePath}`);
}
// Restore the automation default background image. i.e., the default used
// in the automated test environment, not the OS default.
function restoreDefaultBackground() {
let defaultBackgroundPath;
if (AppConstants.isPlatformAndVersionAtLeast("macosx", 19)) {
defaultBackgroundPath = kDefaultBackgroundImage_10_15;
} else {
defaultBackgroundPath = kDefaultBackgroundImage_10_14;
}
setAndCheckDesktopBackgroundCLI(defaultBackgroundPath);
}
/**
* Tests "Set As Desktop Background" platform implementation on macOS.
*
* Sets the desktop background image to the browser logo from the about:logo
* page and verifies it was set successfully. Setting the desktop background
* (which uses the nsIShellService::setDesktopBackground() interface method)
* downloads the image to ~/Pictures using a unique file name and sets the
* desktop background to the downloaded file leaving the download in place.
* After setDesktopBackground() is called, the test uses a python script to
* validate that the current desktop background is in fact set to the
* downloaded logo.
*/
add_task(async function () {
await BrowserTestUtils.withNewTab(
{
gBrowser,
url: "about:logo",
},
async browser => {
let dirSvc = Cc["@mozilla.org/file/directory_service;1"].getService(
Ci.nsIDirectoryServiceProvider
);
let uuidGenerator = Services.uuid;
let shellSvc = Cc["@mozilla.org/browser/shell-service;1"].getService(
Ci.nsIShellService
);
// Ensure we are starting with the default background. Log a
// failure if we can not set the background to the default, but
// ignore the case where the background is not already set as that
// that may be due to a previous test failure.
restoreDefaultBackground();
// Generate a UUID (with non-alphanumberic characters removed) to build
// up a filename for the desktop background. Use a UUID to distinguish
// between runs so we won't be confused by images that were not properly
// cleaned up after previous runs.
let uuid = uuidGenerator.generateUUID().toString().replace(/\W/g, "");
// Set the background image path to be $HOME/Pictures/<UUID>.png.
// nsIShellService.setDesktopBackground() downloads the image to this
// path and then sets it as the desktop background image, leaving the
// image in place.
let backgroundImage = dirSvc.getFile(NS_OSX_PICTURE_DOCUMENTS_DIR, {});
backgroundImage.append(uuid + ".png");
if (backgroundImage.exists()) {
backgroundImage.remove(false);
}
// For simplicity, we're going to reach in and access the image on the
// page directly, which means the page shouldn't be running in a remote
// browser. Thankfully, about:logo runs in the parent process for now.
Assert.ok(
!gBrowser.selectedBrowser.isRemoteBrowser,
"image can be accessed synchronously from the parent process"
);
let image = gBrowser.selectedBrowser.contentDocument.images[0];
info(`Setting/saving desktop background to ${backgroundImage.path}`);
// Saves the file in ~/Pictures
shellSvc.setDesktopBackground(image, 0, backgroundImage.leafName);
await BrowserTestUtils.waitForCondition(() => backgroundImage.exists());
info(`${backgroundImage.path} downloaded`);
Assert.ok(
FileUtils.File(backgroundImage.path).exists(),
`${backgroundImage.path} exists`
);
// Check that the desktop background image is the image we set above.
let exitCode = checkDesktopBackgroundCLI(backgroundImage.path);
Assert.ok(exitCode == 0, `background should be ${backgroundImage.path}`);
// Restore the background image to the Mac default.
restoreDefaultBackground();
// We no longer need the downloaded image.
backgroundImage.remove(false);
}
);
});
|
