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| 1 # paper-header-panel |
| 2 |
| 3 `paper-header-panel` contains a header section and a content panel section. |
| 4 |
| 5 __Important:__ The `paper-header-panel` will not display if its parent does not
have a height. |
| 6 |
| 7 Using [layout classes](http://www.polymer-project.org/docs/polymer/layout-attrs.
html), you can make |
| 8 the `paper-header-panel` fill the screen |
| 9 |
| 10 ```html |
| 11 <body class="fullbleed layout vertical"> |
| 12 <paper-header-panel class="flex"> |
| 13 <paper-toolbar> |
| 14 <div>Hello World!</div> |
| 15 </paper-toolbar> |
| 16 </paper-header-panel> |
| 17 </body> |
| 18 ``` |
| 19 |
| 20 Special support is provided for scrolling modes when one uses a `paper-toolbar`
or equivalent for the header section. For example: |
| 21 |
| 22 ```html |
| 23 <paper-header-panel> |
| 24 <paper-toolbar>Header</paper-toolbar> |
| 25 <div>Content goes here...</div> |
| 26 </paper-header-panel> |
| 27 ``` |
| 28 |
| 29 If you want to use other than `paper-toolbar` for the header, add `paper-header`
class to that |
| 30 element: |
| 31 |
| 32 ```html |
| 33 <paper-header-panel> |
| 34 <div class="paper-header">Header</div> |
| 35 <div>Content goes here...</div> |
| 36 </paper-header-panel> |
| 37 ``` |
| 38 |
| 39 To have the content fit to the main area, use the `fit` class: |
| 40 |
| 41 ```html |
| 42 <paper-header-panel> |
| 43 <div class="paper-header">standard</div> |
| 44 <div class="content fit">content fits 100% below the header</div> |
| 45 </paper-header-panel> |
| 46 ``` |
| 47 |
| 48 ### Mode |
| 49 |
| 50 Controls header and scrolling behavior. Options are `standard`, `seamed`, `water
fall`, `waterfall-tall`, `scroll` and |
| 51 `cover`. Default is `standard`. |
| 52 |
| 53 Mode | Description |
| 54 ----------------|------------- |
| 55 `standard` | The header is a step above the panel. The header will consume the p
anel at the point of entry, preventing it from passing through to the opposite s
ide. |
| 56 `seamed` | The header is presented as seamed with the panel. |
| 57 `waterfall` | Similar to standard mode, but header is initially presented as sea
med with panel, but then separates to form the step. |
| 58 `waterfall-tall` | The header is initially taller (`tall` class is added to the
header). As the user scrolls, the header separates (forming an edge) while conde
nsing (`tall` class is removed from the header). |
| 59 `scroll` | The header keeps its seam with the panel, and is pushed off screen. |
| 60 `cover` | The panel covers the whole `paper-header-panel` including the header.
This allows user to style the panel in such a way that the panel is partially co
vering the header. |
| 61 |
| 62 Example: |
| 63 |
| 64 ```html |
| 65 <paper-header-panel mode="waterfall"> |
| 66 <div class="paper-header">standard</div> |
| 67 <div class="content fit">content fits 100% below the header</div> |
| 68 </paper-header-panel> |
| 69 ``` |
| 70 |
| 71 ### Styling header panel: |
| 72 |
| 73 To change the shadow that shows up underneath the header: |
| 74 |
| 75 ```css |
| 76 paper-header-panel { |
| 77 --paper-header-panel-shadow: { |
| 78 height: 6px; |
| 79 bottom: -6px; |
| 80 box-shadow: inset 0px 5px 6px -3px rgba(0, 0, 0, 0.4); |
| 81 }; |
| 82 } |
| 83 ``` |
| 84 |
| 85 To change the panel container: |
| 86 |
| 87 ```css |
| 88 paper-slider { |
| 89 --paper-header-panel-standard-container: { |
| 90 border: 1px solid gray; |
| 91 }; |
| 92 |
| 93 --paper-header-panel-cover-container: { |
| 94 border: 1px solid gray; |
| 95 }; |
| 96 |
| 97 --paper-header-panel-waterfall-container: { |
| 98 border: 1px solid gray; |
| 99 }; |
| 100 |
| 101 --paper-header-panel-waterfall-tall-container: { |
| 102 border: 1px solid gray; |
| 103 }; |
| 104 } |
| 105 ``` |
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Chromium Code Reviews
Issue 1162563004:
Upgrade to 1.0 and switch clients to dom-repeat where needed. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master