gecko/browser/base/content/test/browser_overflowScroll.js

77 lines
2.8 KiB
JavaScript

var tabContainer = gBrowser.tabContainer;
var tabstrip = tabContainer.mTabstrip;
var scrollbox = tabstrip._scrollbox;
var originalSmoothScroll = tabstrip.smoothScroll;
function rect(ele) ele.getBoundingClientRect();
function width(ele) rect(ele).width;
function left(ele) rect(ele).left;
function right(ele) rect(ele).right;
function isLeft(ele, msg) is(left(ele), left(scrollbox), msg);
function isRight(ele, msg) is(right(ele), right(scrollbox), msg);
function elementFromPoint(x) tabstrip._elementFromPoint(x);
function nextLeftElement() elementFromPoint(left(scrollbox) - 1);
function nextRightElement() elementFromPoint(right(scrollbox) + 1);
function test() {
waitForExplicitFinish();
// If the previous (or more) test finished with cleaning up the tabs,
// there may be some pending animations. That can cause a failure of
// this tests, so, we should test this in another stack.
setTimeout(doTest, 0);
}
function doTest() {
tabstrip.smoothScroll = false;
var tabMinWidth = gPrefService.getIntPref("browser.tabs.tabMinWidth");
var tabCountForOverflow = Math.ceil(width(tabstrip) / tabMinWidth * 3);
while (tabContainer.childNodes.length < tabCountForOverflow)
gBrowser.addTab();
tabstrip.addEventListener("overflow", runOverflowTests, false);
}
function runOverflowTests(aEvent) {
if (aEvent.detail != 1)
return;
tabstrip.removeEventListener("overflow", runOverflowTests, false);
var upButton = tabstrip._scrollButtonUp;
var downButton = tabstrip._scrollButtonDown;
var element;
gBrowser.selectedTab = tabContainer.firstChild;
isLeft(tabContainer.firstChild, "Selecting the first tab scrolls it into view");
element = nextRightElement();
EventUtils.synthesizeMouse(downButton, 0, 0, {});
isRight(element, "Scrolled one tab to the right with a single click");
gBrowser.selectedTab = tabContainer.lastChild;
isRight(tabContainer.lastChild, "Selecting the last tab scrolls it into view");
element = nextLeftElement();
EventUtils.synthesizeMouse(upButton, 0, 0, {});
isLeft(element, "Scrolled one tab to the left with a single click");
element = elementFromPoint(left(scrollbox) - width(scrollbox));
EventUtils.synthesizeMouse(upButton, 0, 0, {clickCount: 2});
isLeft(element, "Scrolled one page of tabs with a double click");
EventUtils.synthesizeMouse(upButton, 0, 0, {clickCount: 3});
isLeft(tabContainer.firstChild, "Scrolled to the start with a triple click");
element = nextRightElement();
EventUtils.synthesizeMouseScroll(scrollbox, 0, 0, {delta: 1});
isRight(element, "Scrolled one tab to the right with the mouse wheel");
while (tabContainer.childNodes.length > 1)
gBrowser.removeTab(tabContainer.lastChild);
tabstrip.smoothScroll = originalSmoothScroll;
finish();
}