Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
let pdfPrinterName = "Mozilla Save to PDF";
let fastPrinterName = "Fast";
let slowPrinterName = "Slow";
async function setupPrinters(helper) {
helper.addMockPrinter(fastPrinterName);
let resolvePrinterInfo;
helper.addMockPrinter({
name: slowPrinterName,
printerInfoPromise: new Promise(resolve => {
resolvePrinterInfo = resolve;
}),
});
await SpecialPowers.pushPrefEnv({
set: [["print.printer_Slow.print_orientation", 1]],
});
return resolvePrinterInfo;
}
async function changeDestination(helper, dir) {
let picker = helper.get("printer-picker");
let changed = BrowserTestUtils.waitForEvent(picker, "change");
let pickerOpened = BrowserTestUtils.waitForSelectPopupShown(window);
picker.focus();
EventUtils.sendKey("space", helper.win);
await pickerOpened;
EventUtils.sendKey(dir, window);
EventUtils.sendKey("return", window);
await changed;
}
function assertFormEnabled(form) {
for (let element of form.elements) {
if (element.hasAttribute("disallowed")) {
ok(element.disabled, `${element.id} is disallowed`);
} else {
ok(!element.disabled, `${element.id} is enabled`);
}
}
}
function assertFormDisabled(form) {
for (let element of form.elements) {
if (element.id == "printer-picker" || element.id == "cancel-button") {
ok(!element.disabled, `${element.id} is enabled`);
} else {
ok(element.disabled, `${element.id} is disabled`);
}
}
}
add_task(async function testSlowDestinationChange() {
await PrintHelper.withTestPage(async helper => {
let resolvePrinterInfo = await setupPrinters(helper);
await helper.startPrint();
let destinationPicker = helper.get("printer-picker");
let printForm = helper.get("print");
info("Changing to fast printer should change settings");
await helper.assertSettingsChanged(
{ printerName: pdfPrinterName, orientation: 0 },
{ printerName: fastPrinterName, orientation: 0 },
async () => {
await changeDestination(helper, "down");
is(destinationPicker.value, fastPrinterName, "Fast printer selected");
// Wait one frame so the print settings promises resolve.
await helper.awaitAnimationFrame();
assertFormEnabled(printForm);
}
);
info("Changing to slow printer should not change settings yet");
await helper.assertSettingsNotChanged(
{ printerName: fastPrinterName, orientation: 0 },
async () => {
await changeDestination(helper, "down");
is(destinationPicker.value, slowPrinterName, "Slow printer selected");
// Wait one frame, since the settings are blocked on resolvePrinterInfo
// the settings shouldn't change.
await helper.awaitAnimationFrame();
assertFormDisabled(printForm);
}
);
await helper.assertSettingsChanged(
{ printerName: fastPrinterName, orientation: 0 },
{ printerName: slowPrinterName, orientation: 1 },
async () => {
resolvePrinterInfo();
await helper.waitForSettingsEvent();
assertFormEnabled(printForm);
}
);
await helper.closeDialog();
});
});
add_task(async function testSwitchAwayFromSlowDestination() {
await PrintHelper.withTestPage(async helper => {
let resolvePrinterInfo = await setupPrinters(helper);
await helper.startPrint();
let destinationPicker = helper.get("printer-picker");
let printForm = helper.get("print");
// Load the fast printer.
await helper.waitForSettingsEvent(async () => {
await changeDestination(helper, "down");
});
await helper.awaitAnimationFrame();
assertFormEnabled(printForm);
// "Load" the slow printer.
await changeDestination(helper, "down");
is(destinationPicker.value, slowPrinterName, "Slow printer selected");
// Wait an animation frame, since there's no settings event.
await helper.awaitAnimationFrame();
assertFormDisabled(printForm);
// Switch back to the fast printer.
await helper.waitForSettingsEvent(async () => {
await changeDestination(helper, "up");
});
helper.assertSettingsMatch({
printerName: fastPrinterName,
orientation: 0,
});
await helper.awaitAnimationFrame();
assertFormEnabled(printForm);
// Let the slow printer settings resolve, the orientation shouldn't change.
resolvePrinterInfo();
// Wait so the settings event can trigger, if this case isn't handled.
await helper.awaitAnimationFrame();
helper.assertSettingsMatch({
printerName: fastPrinterName,
orientation: 0,
});
assertFormEnabled(printForm);
await helper.closeDialog();
});
});