git.wh0rd.org / tt-rss.git / blame
| Commit | Line | Data |
|---|---|---|
| f0cfe83e AD |
1 | define("dojo/hccss", [ |
| 2 | "require", // require.toUrl | |
| 3 | "./_base/config", // config.blankGif | |
| 4 | "./dom-class", // domClass.add | |
| 5 | "./dom-style", // domStyle.getComputedStyle | |
| 6 | "./has", | |
| 7 | "./ready", // ready | |
| 8 | "./_base/window" // win.body | |
| 9 | ], function(require, config, domClass, domStyle, has, ready, win){ | |
| 10 | ||
| 11 | // module: | |
| 12 | // dojo/hccss | |
| 13 | ||
| 14 | /*===== | |
| 15 | return function(){ | |
| 16 | // summary: | |
| 17 | // Test if computer is in high contrast mode (i.e. if browser is not displaying background images). | |
| 18 | // Defines `has("highcontrast")` and sets `dj_a11y` CSS class on `<body>` if machine is in high contrast mode. | |
| 19 | // Returns `has()` method; | |
| 20 | }; | |
| 21 | =====*/ | |
| 22 | ||
| 23 | // Has() test for when background images aren't displayed. Don't call has("highcontrast") before dojo/domReady!. | |
| 24 | has.add("highcontrast", function(){ | |
| 25 | // note: if multiple documents, doesn't matter which one we use | |
| 26 | var div = win.doc.createElement("div"); | |
| 27 | div.style.cssText = "border: 1px solid; border-color:red green; position: absolute; height: 5px; top: -999px;" + | |
| 28 | "background-image: url(" + (config.blankGif || require.toUrl("./resources/blank.gif")) + ");"; | |
| 29 | win.body().appendChild(div); | |
| 30 | ||
| 31 | var cs = domStyle.getComputedStyle(div), | |
| 32 | bkImg = cs.backgroundImage, | |
| 33 | hc = (cs.borderTopColor == cs.borderRightColor) || | |
| 34 | (bkImg && (bkImg == "none" || bkImg == "url(invalid-url:)" )); | |
| 35 | ||
| 36 | if(has("ie") <= 8){ | |
| 37 | div.outerHTML = ""; // prevent mixed-content warning, see http://support.microsoft.com/kb/925014 | |
| 38 | }else{ | |
| 39 | win.body().removeChild(div); | |
| 40 | } | |
| 41 | ||
| 42 | return hc; | |
| 43 | }); | |
| 44 | ||
| 45 | // Priority is 90 to run ahead of parser priority of 100. For 2.0, remove the ready() call and instead | |
| 46 | // change this module to depend on dojo/domReady! | |
| 47 | ready(90, function(){ | |
| 48 | if(has("highcontrast")){ | |
| 49 | domClass.add(win.body(), "dj_a11y"); | |
| 50 | } | |
| 51 | }); | |
| 52 | ||
| 53 | return has; | |
| 54 | }); |