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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /toolkit/components/thumbnails/test/browser_thumbnails_fullViewport.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'toolkit/components/thumbnails/test/browser_thumbnails_fullViewport.js')
-rw-r--r-- | toolkit/components/thumbnails/test/browser_thumbnails_fullViewport.js | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/toolkit/components/thumbnails/test/browser_thumbnails_fullViewport.js b/toolkit/components/thumbnails/test/browser_thumbnails_fullViewport.js new file mode 100644 index 0000000000..92533bdd3d --- /dev/null +++ b/toolkit/components/thumbnails/test/browser_thumbnails_fullViewport.js @@ -0,0 +1,74 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ + +"use strict"; + +const BUILDER_URL = "https://example.com/document-builder.sjs?html="; +const PAGE_MARKUP = ` +<html> + <head> + <style> + body { + background-color: rgb(0, 255, 0); + margin: 0; + } + + div { + background-color: rgb(255, 0, 0); + height: 100vh; + width: 100vw; + margin-top: 100vh; + } + </style> + </head> + <body> + <div id="bigredblock"></div> + </body> +</html> +`; +const PAGE_URL = BUILDER_URL + encodeURI(PAGE_MARKUP); + +/** + * These tests ensure that it's possible to capture the full viewport of + * a browser, and not just the top region. + */ +add_task(async function thumbnails_fullViewport_capture() { + // Create a tab with a green background. + await BrowserTestUtils.withNewTab( + { + gBrowser, + url: PAGE_URL, + }, + async browser => { + let canvas = PageThumbs.createCanvas(window); + await PageThumbs.captureToCanvas(browser, canvas, { + fullViewport: true, + }); + + // The red region isn't scrolled in yet, so we should get + // a green thumbnail. + let ctx = canvas.getContext("2d"); + let [r, g, b] = ctx.getImageData(0, 0, 1, 1).data; + Assert.equal(r, 0, "No red channel"); + Assert.equal(g, 255, "Full green channel"); + Assert.equal(b, 0, "No blue channel"); + + // Now scroll the red region into view. + await SpecialPowers.spawn(browser, [], () => { + let redblock = content.document.getElementById("bigredblock"); + redblock.scrollIntoView(true); + }); + + await PageThumbs.captureToCanvas(browser, canvas, { + fullViewport: true, + }); + + // The captured region should be red. + ctx = canvas.getContext("2d"); + [r, g, b] = ctx.getImageData(0, 0, 1, 1).data; + Assert.equal(r, 255, "Full red channel"); + Assert.equal(g, 0, "No green channel"); + Assert.equal(b, 0, "No blue channel"); + } + ); +}); |