Built-in Toolbars

CKEditor provides three different packages with their own configurations (full, standard & basic). The bundle is shipped with the full edition but you can easily switch the toolbar configuration by using the full, standard or basic keyword as toolbar. You can configure it globally in your configuration:

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# config/packages/fos_ck_editor.yaml
fos_ck_editor:
    configs:
        my_config:
            toolbar: full

Or you can configure it your widget:

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$builder->add('field', 'ckeditor', array(
    'config' => array('toolbar' => 'full'),
));

Custom Toolbar

Build a toolbar in the configuration or especially in the widget is really a pain. Each time, you want a custom one, you need to redefine all the structure. To avoid this duplication, the bundle allows you to define your own toolbars or override the built-in ones in a separate node and reuse them. This feature is only available in your configuration.

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# config/packages/fos_ck_editor.yaml
fos_ck_editor:
    configs:
        my_config_1:
            toolbar: "my_toolbar_1"
            uiColor: "#000000"
            # ...
        my_config_2:
            toolbar: "my_toolbar_2"
            uiColor: "#ffffff"
            # ...
        my_config_2:
            toolbar: "my_toolbar_1"
            uiColor: "#cccccc"
    toolbars:
        configs:
            my_toolbar_1: [ [ "Source", "-", "Save" ], "/", [ "Anchor" ], "/", [ "Maximize" ] ]
            my_toolbar_2: [ [ "Source" ], "/", [ "Anchor" ], "/", [ "Maximize" ] ]

Here, we see how is structured a toolbar. A toolbar is an array of toolbars (strips), each one being also an array, containing a list of UI items. To do a carriage return, you just have to add the char / between strips. It relies on the exact same structure than CKEditor itself.

Using the toolbars node is better but the config is still not perfect as you still have code duplications in the toolbar items. To avoid this part, you can define a group of items in a separate node & then, inject them in your toolbar by prefixing them with a @.

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fos_ck_editor:
    configs:
        my_config_1:
            toolbar: "my_toolbar_1"
            uiColor: "#000000"
            # ...
        my_config_2:
            toolbar: "my_toolbar_2"
            uiColor: "#ffffff"
            # ...
    toolbars:
        configs:
            my_toolbar_1: [ "@document", "/", "@link" , "/", "@tool" ]
            my_toolbar_2: [ "@document", "/", "@tool" ]
        items:
            document: [ "Source", "-", "Save" ]
            link:     [ "Anchor" ]
            tool:     [ "Maximize" ]

The built-in configurations (full, standard, basic) are also using items so if you want to just override one part of a configuration, just override it:

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fos_ck_editor:
    configs:
        my_config:
            toolbar: "full"
    toolbars:
        items:
            full.colors: [ "TextColor", "BGColor" ]
            full.document: [ "Source", "-", "Preview", "Print" ]