The Tor Browser: browser/devtools/shared/test/browser

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* Any copyright is dedicated to the Public Domain.

     2  * http://creativecommons.org/publicdomain/zero/1.0/ */

     4 // Tests that scrollIntoViewIfNeeded works properly.

     6 let imported = {};

     7 Components.utils.import("resource://gre/modules/devtools/LayoutHelpers.jsm",

     8     imported);

     9 registerCleanupFunction(function () {

    10   imported = {};

    11 });

    13 let LayoutHelpers = imported.LayoutHelpers;

    15 const TEST_URI = "http://example.com/browser/browser/devtools/shared/test/browser_layoutHelpers.html";

    17 function test() {

    18   addTab(TEST_URI, function(browser, tab) {

    19     info("Starting browser_layoutHelpers.js");

    20     let doc = browser.contentDocument;

    21     runTest(doc.defaultView, doc.getElementById('some'));

    22     gBrowser.removeCurrentTab();

    23     finish();

    24   });

    25 }

    27 function runTest(win, some) {

    28   let lh = new LayoutHelpers(win);

    30   some.style.top = win.innerHeight + 'px';

    31   some.style.left = win.innerWidth + 'px';

    32   // The tests start with a black 2x2 pixels square below bottom right.

    33   // Do not resize the window during the tests.

    35   win.scroll(win.innerWidth / 2, win.innerHeight + 2);  // Above the viewport.

    36   lh.scrollIntoViewIfNeeded(some);

    37   is(win.scrollY, Math.floor(win.innerHeight / 2) + 1,

    38      'Element completely hidden above should appear centered.');

    40   win.scroll(win.innerWidth / 2, win.innerHeight + 1);  // On the top edge.

    41   lh.scrollIntoViewIfNeeded(some);

    42   is(win.scrollY, win.innerHeight,

    43      'Element partially visible above should appear above.');

    45   win.scroll(win.innerWidth / 2, 0);  // Just below the viewport.

    46   lh.scrollIntoViewIfNeeded(some);

    47   is(win.scrollY, Math.floor(win.innerHeight / 2) + 1,

    48      'Element completely hidden below should appear centered.');

    50   win.scroll(win.innerWidth / 2, 1);  // On the bottom edge.

    51   lh.scrollIntoViewIfNeeded(some);

    52   is(win.scrollY, 2,

    53      'Element partially visible below should appear below.');

    56   win.scroll(win.innerWidth / 2, win.innerHeight + 2);  // Above the viewport.

    57   lh.scrollIntoViewIfNeeded(some, false);

    58   is(win.scrollY, win.innerHeight,

    59      'Element completely hidden above should appear above ' +

    60      'if parameter is false.');

    62   win.scroll(win.innerWidth / 2, win.innerHeight + 1);  // On the top edge.

    63   lh.scrollIntoViewIfNeeded(some, false);

    64   is(win.scrollY, win.innerHeight,

    65      'Element partially visible above should appear above ' +

    66      'if parameter is false.');

    68   win.scroll(win.innerWidth / 2, 0);  // Below the viewport.

    69   lh.scrollIntoViewIfNeeded(some, false);

    70   is(win.scrollY, 2,

    71      'Element completely hidden below should appear below ' +

    72      'if parameter is false.');

    74   win.scroll(win.innerWidth / 2, 1);  // On the bottom edge.

    75   lh.scrollIntoViewIfNeeded(some, false);

    76   is(win.scrollY, 2,

    77      'Element partially visible below should appear below ' +

    78      'if parameter is false.');

    80   // The case of iframes.

    81   win.scroll(0, 0);

    83   let frame = win.document.getElementById('frame');

    84   let fwin = frame.contentWindow;

    86   frame.style.top = win.innerHeight + 'px';

    87   frame.style.left = win.innerWidth + 'px';

    89   fwin.addEventListener('load', function frameLoad() {

    90     let some = fwin.document.getElementById('some');

    91     lh.scrollIntoViewIfNeeded(some);

    92     is(win.scrollX, Math.floor(win.innerWidth / 2) + 20,

    93        'Scrolling from an iframe should center the iframe vertically.');

    94     is(win.scrollY, Math.floor(win.innerHeight / 2) + 20,

    95        'Scrolling from an iframe should center the iframe horizontally.');

    96     is(fwin.scrollX, Math.floor(fwin.innerWidth / 2) + 1,

    97        'Scrolling from an iframe should center the element vertically.');

    98     is(fwin.scrollY, Math.floor(fwin.innerHeight / 2) + 1,

    99        'Scrolling from an iframe should center the element horizontally.');

   100   }, false);

   101 }

The Tor Browser / file revision