├── LICENSE.txt ├── README.markdown ├── benchmark ├── benchmark.html └── jquery-1.10.2.min.js ├── bower.json ├── df-visible.jquery.json ├── examples ├── demo-basic.html └── demo-container.html ├── jquery.visible.js ├── jquery.visible.min.js └── package.json /LICENSE.txt: -------------------------------------------------------------------------------- 1 | Copyright (c) 2012 Digital Fusion, http://teamdf.com/ 2 | 3 | Permission is hereby granted, free of charge, to any person obtaining 4 | a copy of this software and associated documentation files (the 5 | "Software"), to deal in the Software without restriction, including 6 | without limitation the rights to use, copy, modify, merge, publish, 7 | distribute, sublicense, and/or sell copies of the Software, and to 8 | permit persons to whom the Software is furnished to do so, subject to 9 | the following conditions: 10 | 11 | The above copyright notice and this permission notice shall be 12 | included in all copies or substantial portions of the Software. 13 | 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 15 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 16 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 17 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 18 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 19 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 20 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- /README.markdown: -------------------------------------------------------------------------------- 1 | Element Onscreen Visibility 2 | =========================== 3 | 4 | This is a [jQuery](http://jquery.com/) plugin which allows us to quickly check if an element 5 | is within the browsers [visual viewport](http://www.quirksmode.org/mobile/viewports.html), 6 | regardless of the scroll position. If a user can see this element, the function will return true. 7 | 8 | 9 | Documentation 10 | ------------- 11 | ### Basic visibility check 12 | 13 | This basic check will return `true` if the entire element is visible to the user (within the visual viewport). 14 | 15 | $('#element').visible(); 16 | 17 | If you'd like to check for ANY PART of the element, you can use the following: 18 | 19 | $('#element').visible( true ); 20 | 21 | The plugin ignores the elements visibility by default. E.g., `display:none`, `visibility: hidden`, `offsetWidth` or `offsetHeight` is 0). 22 | To filter on css visibility, you can use the jQuery `:visible` selector: 23 | 24 | $('#element:visible').visible(); 25 | 26 | Optionally, you can specify a second parameter to the `.visible` plugin, which will check whether the element is visible, as well as 27 | whether it's within the viewport too. 28 | 29 | $('#element:visible').visible( false, true ); 30 | 31 | Optionally, you can add a third parameter to specify the direction to check for visibility. This can either be 'horizontal', 'vertical' or 'both'. 32 | Default is to 'both'. 33 | 34 | $('#element').visible( false, false, 'horizontal' ); 35 | 36 | 37 | Demos 38 | ----- 39 | 40 | The Demos for this plugin live under the examples/ directory. Open them directly in your web browser, or view the following online examples: 41 | 42 | - [Basic Demo](http://opensource.teamdf.com/visible/examples/demo-basic.html) 43 | 44 | See the blog article: 45 | 46 | - [Checking if an element is visible on-screen using jQuery](https://www.customd.com/articles/13/checking-if-an-element-is-visible-on-screen-using-jquery) 47 | 48 | 49 | Limitations 50 | ----------- 51 | 52 | Currently, this plugin will not check for visibility in nested scrollable areas, only on the main viewport (window object). 53 | -------------------------------------------------------------------------------- /benchmark/benchmark.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Benchmarks 5 | 43 | 44 | 45 |

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