content/canvas/test/test_canvas_font_setter.html@6474c204b198 (annotated)
content/canvas/test/test_canvas_font_setter.html
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 | <!DOCTYPE HTML> |
| michael@0 | 2 | <html> |
| michael@0 | 3 | <!-- |
| michael@0 | 4 | https://bugzilla.mozilla.org/show_bug.cgi?id= |
| michael@0 | 5 | --> |
| michael@0 | 6 | <head> |
| michael@0 | 7 | <title>Test for Bug </title> |
| michael@0 | 8 | <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> |
| michael@0 | 9 | <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> |
| michael@0 | 10 | </head> |
| michael@0 | 11 | <body> |
| michael@0 | 12 | <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=">Mozilla Bug </a> |
| michael@0 | 13 | <canvas id="display" height="200" width="200"></canvas> |
| michael@0 | 14 | <pre id="test"> |
| michael@0 | 15 | <script type="application/javascript"> |
| michael@0 | 16 | |
| michael@0 | 17 | var canvas = document.getElementById("display"); |
| michael@0 | 18 | var cx = canvas.getContext("2d"); |
| michael@0 | 19 | |
| michael@0 | 20 | is(cx.font, "10px sans-serif", "initial font of canvas context"); |
| michael@0 | 21 | |
| michael@0 | 22 | cx.font = "italic 16px sans-serif"; |
| michael@0 | 23 | is(cx.font, "italic 16px sans-serif", "valid font should round-trip"); |
| michael@0 | 24 | cx.font = "bold 12px serif; background: green"; |
| michael@0 | 25 | is(cx.font, "italic 16px sans-serif", "invalid font should be ignored"); |
| michael@0 | 26 | |
| michael@0 | 27 | cx.font = "bold 12px/3.0 serif"; |
| michael@0 | 28 | is(cx.font, "bold 12px serif", "line-height should be dropped"); |
| michael@0 | 29 | cx.font = "inherit"; |
| michael@0 | 30 | is(cx.font, "bold 12px serif", "inherit should be ignored"); |
| michael@0 | 31 | cx.font = "boold 18px sans-serif"; |
| michael@0 | 32 | is(cx.font, "bold 12px serif", "syntax error should be ignored"); |
| michael@0 | 33 | cx.font = "menu"; |
| michael@0 | 34 | todo_is(cx.font, "menu", "system fonts should work"); |
| michael@0 | 35 | |
| michael@0 | 36 | function textmeas() { |
| michael@0 | 37 | return cx.measureText("hello").width; |
| michael@0 | 38 | } |
| michael@0 | 39 | |
| michael@0 | 40 | cx.font = "66px serif"; |
| michael@0 | 41 | var w_at_66 = textmeas(); |
| michael@0 | 42 | cx.font = "20px serif"; |
| michael@0 | 43 | var w_at_20 = textmeas(); |
| michael@0 | 44 | ok(w_at_66 > w_at_20, "text should be wider at 66px than at 20px"); |
| michael@0 | 45 | |
| michael@0 | 46 | canvas.style.fontSize = "33px"; |
| michael@0 | 47 | cx.font = "2em serif"; |
| michael@0 | 48 | is(cx.font, "2em serif", "serialization of em"); |
| michael@0 | 49 | is(textmeas(), w_at_66, "em should be relative to canvas font size"); |
| michael@0 | 50 | canvas.style.fontSize = "16px"; |
| michael@0 | 51 | is(cx.font, "2em serif", "serialization of em"); |
| michael@0 | 52 | is(textmeas(), w_at_66, |
| michael@0 | 53 | "em should be relative to canvas font size at time of setting"); |
| michael@0 | 54 | document.body.removeChild(canvas); |
| michael@0 | 55 | is(cx.font, "2em serif", "serialization of em"); |
| michael@0 | 56 | is(textmeas(), w_at_66, |
| michael@0 | 57 | "em should be relative to canvas font size at time of setting"); |
| michael@0 | 58 | canvas.style.fontSize = "33px"; |
| michael@0 | 59 | cx.font = "2em serif"; |
| michael@0 | 60 | is(cx.font, "2em serif", "serialization of em"); |
| michael@0 | 61 | is(textmeas(), w_at_20, |
| michael@0 | 62 | "em should be relative to 10px when canvas not in document"); |
| michael@0 | 63 | document.body.appendChild(canvas); |
| michael@0 | 64 | |
| michael@0 | 65 | </script> |
| michael@0 | 66 | </pre> |
| michael@0 | 67 | </body> |
| michael@0 | 68 | </html> |
