browser/devtools/shared/test/browser_layoutHelpers.js@6474c204b198 (annotated)
browser/devtools/shared/test/browser_layoutHelpers.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* Any copyright is dedicated to the Public Domain. |
| michael@0 | 2 | * http://creativecommons.org/publicdomain/zero/1.0/ */ |
| michael@0 | 3 | |
| michael@0 | 4 | // Tests that scrollIntoViewIfNeeded works properly. |
| michael@0 | 5 | |
| michael@0 | 6 | let imported = {}; |
| michael@0 | 7 | Components.utils.import("resource://gre/modules/devtools/LayoutHelpers.jsm", |
| michael@0 | 8 | imported); |
| michael@0 | 9 | registerCleanupFunction(function () { |
| michael@0 | 10 | imported = {}; |
| michael@0 | 11 | }); |
| michael@0 | 12 | |
| michael@0 | 13 | let LayoutHelpers = imported.LayoutHelpers; |
| michael@0 | 14 | |
| michael@0 | 15 | const TEST_URI = "http://example.com/browser/browser/devtools/shared/test/browser_layoutHelpers.html"; |
| michael@0 | 16 | |
| michael@0 | 17 | function test() { |
| michael@0 | 18 | addTab(TEST_URI, function(browser, tab) { |
| michael@0 | 19 | info("Starting browser_layoutHelpers.js"); |
| michael@0 | 20 | let doc = browser.contentDocument; |
| michael@0 | 21 | runTest(doc.defaultView, doc.getElementById('some')); |
| michael@0 | 22 | gBrowser.removeCurrentTab(); |
| michael@0 | 23 | finish(); |
| michael@0 | 24 | }); |
| michael@0 | 25 | } |
| michael@0 | 26 | |
| michael@0 | 27 | function runTest(win, some) { |
| michael@0 | 28 | let lh = new LayoutHelpers(win); |
| michael@0 | 29 | |
| michael@0 | 30 | some.style.top = win.innerHeight + 'px'; |
| michael@0 | 31 | some.style.left = win.innerWidth + 'px'; |
| michael@0 | 32 | // The tests start with a black 2x2 pixels square below bottom right. |
| michael@0 | 33 | // Do not resize the window during the tests. |
| michael@0 | 34 | |
| michael@0 | 35 | win.scroll(win.innerWidth / 2, win.innerHeight + 2); // Above the viewport. |
| michael@0 | 36 | lh.scrollIntoViewIfNeeded(some); |
| michael@0 | 37 | is(win.scrollY, Math.floor(win.innerHeight / 2) + 1, |
| michael@0 | 38 | 'Element completely hidden above should appear centered.'); |
| michael@0 | 39 | |
| michael@0 | 40 | win.scroll(win.innerWidth / 2, win.innerHeight + 1); // On the top edge. |
| michael@0 | 41 | lh.scrollIntoViewIfNeeded(some); |
| michael@0 | 42 | is(win.scrollY, win.innerHeight, |
| michael@0 | 43 | 'Element partially visible above should appear above.'); |
| michael@0 | 44 | |
| michael@0 | 45 | win.scroll(win.innerWidth / 2, 0); // Just below the viewport. |
| michael@0 | 46 | lh.scrollIntoViewIfNeeded(some); |
| michael@0 | 47 | is(win.scrollY, Math.floor(win.innerHeight / 2) + 1, |
| michael@0 | 48 | 'Element completely hidden below should appear centered.'); |
| michael@0 | 49 | |
| michael@0 | 50 | win.scroll(win.innerWidth / 2, 1); // On the bottom edge. |
| michael@0 | 51 | lh.scrollIntoViewIfNeeded(some); |
| michael@0 | 52 | is(win.scrollY, 2, |
| michael@0 | 53 | 'Element partially visible below should appear below.'); |
| michael@0 | 54 | |
| michael@0 | 55 | |
| michael@0 | 56 | win.scroll(win.innerWidth / 2, win.innerHeight + 2); // Above the viewport. |
| michael@0 | 57 | lh.scrollIntoViewIfNeeded(some, false); |
| michael@0 | 58 | is(win.scrollY, win.innerHeight, |
| michael@0 | 59 | 'Element completely hidden above should appear above ' + |
| michael@0 | 60 | 'if parameter is false.'); |
| michael@0 | 61 | |
| michael@0 | 62 | win.scroll(win.innerWidth / 2, win.innerHeight + 1); // On the top edge. |
| michael@0 | 63 | lh.scrollIntoViewIfNeeded(some, false); |
| michael@0 | 64 | is(win.scrollY, win.innerHeight, |
| michael@0 | 65 | 'Element partially visible above should appear above ' + |
| michael@0 | 66 | 'if parameter is false.'); |
| michael@0 | 67 | |
| michael@0 | 68 | win.scroll(win.innerWidth / 2, 0); // Below the viewport. |
| michael@0 | 69 | lh.scrollIntoViewIfNeeded(some, false); |
| michael@0 | 70 | is(win.scrollY, 2, |
| michael@0 | 71 | 'Element completely hidden below should appear below ' + |
| michael@0 | 72 | 'if parameter is false.'); |
| michael@0 | 73 | |
| michael@0 | 74 | win.scroll(win.innerWidth / 2, 1); // On the bottom edge. |
| michael@0 | 75 | lh.scrollIntoViewIfNeeded(some, false); |
| michael@0 | 76 | is(win.scrollY, 2, |
| michael@0 | 77 | 'Element partially visible below should appear below ' + |
| michael@0 | 78 | 'if parameter is false.'); |
| michael@0 | 79 | |
| michael@0 | 80 | // The case of iframes. |
| michael@0 | 81 | win.scroll(0, 0); |
| michael@0 | 82 | |
| michael@0 | 83 | let frame = win.document.getElementById('frame'); |
| michael@0 | 84 | let fwin = frame.contentWindow; |
| michael@0 | 85 | |
| michael@0 | 86 | frame.style.top = win.innerHeight + 'px'; |
| michael@0 | 87 | frame.style.left = win.innerWidth + 'px'; |
| michael@0 | 88 | |
| michael@0 | 89 | fwin.addEventListener('load', function frameLoad() { |
| michael@0 | 90 | let some = fwin.document.getElementById('some'); |
| michael@0 | 91 | lh.scrollIntoViewIfNeeded(some); |
| michael@0 | 92 | is(win.scrollX, Math.floor(win.innerWidth / 2) + 20, |
| michael@0 | 93 | 'Scrolling from an iframe should center the iframe vertically.'); |
| michael@0 | 94 | is(win.scrollY, Math.floor(win.innerHeight / 2) + 20, |
| michael@0 | 95 | 'Scrolling from an iframe should center the iframe horizontally.'); |
| michael@0 | 96 | is(fwin.scrollX, Math.floor(fwin.innerWidth / 2) + 1, |
| michael@0 | 97 | 'Scrolling from an iframe should center the element vertically.'); |
| michael@0 | 98 | is(fwin.scrollY, Math.floor(fwin.innerHeight / 2) + 1, |
| michael@0 | 99 | 'Scrolling from an iframe should center the element horizontally.'); |
| michael@0 | 100 | }, false); |
| michael@0 | 101 | } |
