<template>
    <AppDoc name="TriStateCheckboxDemo" :sources="sources">
        <h5>Import via Module</h5>
        <pre v-code.script><code>
import TriStateCheckbox from 'primevue/tristatecheckbox';

</code></pre>

        <h5>Import via CDN</h5>
        <pre v-code><code>
&lt;script src="https://unpkg.com/primevue@^3/core/core.min.js"&gt;&lt;/script&gt;
&lt;script src="https://unpkg.com/primevue@^3/tristatecheckbox/tristatecheckbox.min.js"&gt;&lt;/script&gt;

</code></pre>

        <h5>Getting Started</h5>
        <p>A model can be bound using the standard v-model directive.</p>
        <pre v-code><code>
&lt;TriStateCheckbox v-model="value" /&gt;

</code></pre>

        <h5>Properties</h5>
        <p>Any property such as name and autofocus are passed to the underlying input element. Following is the additional property to configure the component.</p>
        <div class="doc-tablewrapper">
            <table class="doc-table">
                <thead>
                    <tr>
                        <th>Name</th>
                        <th>Type</th>
                        <th>Default</th>
                        <th>Description</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <td>modelValue</td>
                        <td>boolean</td>
                        <td>null</td>
                        <td>Value of the component.</td>
                    </tr>
                    <tr>
                        <td>disabled</td>
                        <td>boolean</td>
                        <td>false</td>
                        <td>When specified, disables the component.</td>
                    </tr>
                    <tr>
                        <td>tabindex</td>
                        <td>number</td>
                        <td>0</td>
                        <td>Index of the element in tabbing order.</td>
                    </tr>
                    <tr>
                        <td>inputId</td>
                        <td>string</td>
                        <td>null</td>
                        <td>Style class of the component input field.</td>
                    </tr>
                    <tr>
                        <td>inputProps</td>
                        <td>object</td>
                        <td>null</td>
                        <td>Uses to pass all properties of the HTMLInputElement to the focusable input element inside the component.</td>
                    </tr>
                    <tr>
                        <td>aria-label</td>
                        <td>string</td>
                        <td>null</td>
                        <td>Defines a string value that labels an interactive element.</td>
                    </tr>
                    <tr>
                        <td>aria-labelledby</td>
                        <td>string</td>
                        <td>null</td>
                        <td>Establishes relationships between the component and label(s) where its value should be one or more element IDs.</td>
                    </tr>
                </tbody>
            </table>
        </div>

        <h5>Events</h5>
        <p>Any valid event such as focus and blur.</p>

        <h5>Styling</h5>
        <p>Following is the list of structural style classes, for theming classes visit <router-link to="/theming">theming</router-link> page.</p>
        <div class="doc-tablewrapper">
            <table class="doc-table">
                <thead>
                    <tr>
                        <th>Name</th>
                        <th>Element</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <td>p-chkbox</td>
                        <td>Container element</td>
                    </tr>
                    <tr>
                        <td>p-tristatechkbox</td>
                        <td>Container element</td>
                    </tr>
                    <tr>
                        <td>p-chkbox-box</td>
                        <td>Container of icon.</td>
                    </tr>
                    <tr>
                        <td>p-chkbox-icon</td>
                        <td>Icon element.</td>
                    </tr>
                </tbody>
            </table>
        </div>

        <h5>Accessibility</h5>
        <h6>Screen Reader</h6>
        <p>
            TriStateCheckbox component uses an element with <i>checkbox</i> role. Value to describe the component can either be provided with <i>aria-labelledby</i> or <i>aria-label</i> props. Component adds an element with <i>aria-live</i> attribute
            that is only visible to screen readers to read the value displayed. Values to read are defined with the <i>trueLabel</i>, <i>falseLabel</i> and <i>nullLabel</i> keys of the <i>aria</i> property from the
            <router-link to="/locale">locale</router-link> API. This is an example of a custom accessibility implementation as there is no one to one mapping between the component design and the WCAG specification.
        </p>

        <pre v-code><code>
&lt;span id="chkbox1"&gt;Remember Me&lt;/span&gt;
&lt;TriStateCheckbox aria-labelledby="chkbox1" /&gt;

&lt;TriStateCheckbox aria-label="Remember Me" /&gt;

</code></pre>

        <h6>Keyboard Support</h6>
        <div class="doc-tablewrapper">
            <table class="doc-table">
                <thead>
                    <tr>
                        <th>Key</th>
                        <th>Function</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <td><i>tab</i></td>
                        <td>Moves focus to the checkbox.</td>
                    </tr>
                    <tr>
                        <td><i>space</i></td>
                        <td>Toggles between the values.</td>
                    </tr>
                    <tr>
                        <td><i>enter</i></td>
                        <td>Toggles between the values.</td>
                    </tr>
                </tbody>
            </table>
        </div>

        <h5>Dependencies</h5>
        <p>None.</p>
    </AppDoc>
</template>

<script>
export default {
    data() {
        return {
            sources: {
                'options-api': {
                    tabName: 'Options API Source',
                    content: `
<template>
    <div>
        <div class="field-checkbox m-0">
            <TriStateCheckbox inputId="checkbox" v-model="value" />
            <label for="checkbox">{{value == null ? 'null' : value}}</label>
        </div>
    </div>
</template>

<script>
export default {
    data() {
        return {
            value: null
        }
    }
}
<\\/script>
`
                },
                'composition-api': {
                    tabName: 'Composition API Source',
                    content: `
<template>
    <div>
        <div class="field-checkbox m-0">
            <TriStateCheckbox inputId="checkbox" v-model="value" />
            <label for="checkbox">{{value == null ? 'null' : value}}</label>
        </div>
    </div>
</template>

<script>
import { ref } from 'vue';

export default {
    setup() {
        const value = ref(null);

		return { value }
    }
}
<\\/script>
`
                },
                'browser-source': {
                    tabName: 'Browser Source',
                    imports: `<script src="https://unpkg.com/primevue@^3/tristatecheckbox/tristatecheckbox.min.js"><\\/script>`,
                    content: `<div id="app">
            <div class="field-checkbox m-0">
                <p-tristatecheckbox input-id="checkbox" v-model="value"></p-tristatecheckbox>
                <label for="checkbox">{{value == null ? 'null' : value}}</label>
            </div>
        </div>

        <script type="module">
        const { createApp, ref } = Vue;

        const App = {
            setup() {
                const value = ref(null);

                return { value }
            },
            components: {
                "p-tristatecheckbox": primevue.tristatecheckbox
            }
        };

        createApp(App)
            .use(primevue.config.default)
            .mount("#app");
        <\\/script>
`
                }
            }
        };
    }
};
</script>
