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Primo3/primo-explore/custom/src/css/README.md
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# The Primo New UI Customization Workflow Development Environment
##css documentation
- Primo uses Angular Directives massively in this project
- To learn more about directives see:
> https://docs.angularjs.org/guide/directive
- Primo uses external directives from the Angular-material framework :
> https://material.angularjs.org/latest/
- Those directives are tagged by a prefix : "md-"
- Primo also creates its own directives which are tagged by the "prm-" prefix.
Example:
```
<header layout="column" layout-fill class="topbar-wrapper">
<prm-topbar>
</prm-topbar>
<prm-search-bar (search-event)="prmSearch.onSearchBarSearchEvent()">
</prm-search-bar>
<md-progress-linear class="header-progress-bar animation-scale-up-down" md-mode="indeterminate" ng-show="prmSearch.searchInProgress">
</md-progress-linear>
</header>
```
- You can see in the example how we use :
1. An HTML5 tag - header
2. A Primo directive : prm-topbar , prm-search-bar.
3. An external material design directive : md-progress-bar :
> https://material.angularjs.org/latest/api/directive/mdProgressLinear
- When defining css rules it is important to understand the css cascading/specifity logic:
> http://www.w3.org/TR/css3-cascade/
> https://specificity.keegan.st/
- When you start working on customizing your css be aware of the ability to define css selectors based on the directive name, which is actually equivalent
to an html tag - this will enable you changing the design of a component cross-system without relying on id's/classes
- For the example above we can define selectors:
```
prm-topbar input {....}
prm-topbar.md-primoExplore-theme input {....}
```
- Primo is using a theme inside angular-material to define a palette of colors see:
> https://material.angularjs.org/latest/Theming/01_introduction
- This means that you will often encounter a class "md-primoExplore-theme" attached to elements.
##Recipes/Examples:
# css Recipe 1 - Color Scheme
- Open a new command line window
- cd to the project base directory (C:\**\**\primo-explore-devenv)
- Run `gulp css-colors` to save the OTB css file
- Run `css-color-extractor primo-explore/tmp/app.css --format=css > primo-explore/tmp/colors.css` to extract the color definitions from the OTB css file and copy the css rules to primo-explore/custom/css/custom1.css
Run the following steps repeatedly until you are satisfied with the result
- Choose a color from the interface (using your browsers' dev tools or extensions such as colorzilla)
- Choose the new color from your library color scheme
- Replace all values in the custom1.css file
- Save and refresh your browser
# css Recipe 2 - Moving the Facets to the Left
- Select the parent container containing the search result and the facets
- Copy the selector definition using your browsers' dev tools
- Define the container as
```
display:flex;
flex-flow:row-reverse;
```
- complete css definition:
```
prm-search > md-content.md-primoExplore-theme .main {
display: -webkit-flex; !* Safari *!
-webkit-flex-flow: row-reverse wrap; !* Safari 6.1+ *!
display: flex;
flex-flow: row-reverse wrap;
}
.screen-gt-sm .sidebar{
webkit-flex: 0 0 15%;
flex: 0 0 15%;
}
```
- Save and refresh your browser
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