schlechtenburg/packages/paragraph/lib/edit.tsx
2021-03-08 16:29:35 +01:00

174 lines
4 KiB
TypeScript

import {
defineComponent,
reactive,
computed,
ref,
Ref,
onMounted,
watch,
PropType,
} from 'vue';
import {
model,
useActivation,
SbToolbar,
SbSelect,
} from '@schlechtenburg/core';
import {
getDefaultData,
ParagraphData,
} from './util';
import './style.scss';
export default defineComponent({
name: 'sb-paragraph-edit',
model,
props: {
blockId: { type: String, required: true },
data: {
type: (null as unknown) as PropType<ParagraphData>,
default: getDefaultData,
},
onUpdate: { type: Function, default: () => {} },
onAppendBlock: { type: Function, default: () => {} },
onRemoveSelf: { type: Function, default: () => {} },
onActivateNext: { type: Function, default: () => {} },
onActivatePrevious: { type: Function, default: () => {} },
},
setup(props) {
const localData = (reactive({
value: props.data.value,
align: props.data.align,
focused: false,
}) as unknown) as {
value: string;
align: string;
focused: boolean;
};
const inputEl: Ref<null|HTMLElement> = ref(null);
const { isActive, activate } = useActivation(props.blockId);
const focusInput = () => {
if (inputEl.value && isActive.value) {
inputEl.value.focus();
}
};
onMounted(() => {
focusInput();
if (inputEl.value) {
inputEl.value.innerHTML = localData.value;
}
});
watch(isActive, focusInput);
watch(() => props.data, () => {
localData.value = props.data.value;
localData.align = props.data.align;
if (inputEl.value) {
inputEl.value.innerHTML = localData.value;
}
});
const onTextUpdate = ($event: Event) => {
localData.value = ($event.target as HTMLElement).innerHTML;
};
const classes = computed(() => ({
'sb-paragraph': true,
'sb-paragraph_focused': localData.focused,
[`sb-paragraph_align-${localData.align}`]: true,
}));
const setAlignment = ($event: Event) => {
props.onUpdate({
value: localData.value,
align: ($event.target as HTMLSelectElement).value,
});
};
const onFocus = () => {
localData.focused = true;
activate();
};
const onBlur = () => {
localData.focused = false;
props.onUpdate({
value: localData.value,
align: localData.align,
});
};
const onKeydown = ($event: KeyboardEvent) => {
if ($event.key === 'Enter' && !$event.shiftKey) {
const id = `${+(new Date())}`;
props.onAppendBlock({
id,
name: 'sb-paragraph',
data: getDefaultData(),
});
activate(id);
$event.preventDefault();
}
};
const onKeyup = ($event: KeyboardEvent) => {
if ($event.key === 'Backspace' && localData.value === '') {
props.onRemoveSelf();
}
const selection = window.getSelection();
const node = selection?.focusNode;
const childNodes = Array.from(inputEl?.value?.childNodes || []);
const index = node ? childNodes.indexOf(node as ChildNode) : -1;
if (node === inputEl.value || index === 0 || index === childNodes.length -1) {
switch ($event.key) {
case 'ArrowDown':
props.onActivateNext();
break;
case 'ArrowUp':
props.onActivatePrevious();
break;
}
}
};
return () => (
<div class={classes.value}>
<SbToolbar>
<SbSelect
{...{
value: localData.align,
onChange: setAlignment,
}}
>
<option>left</option>
<option>center</option>
<option>right</option>
</SbSelect>
</SbToolbar>
<p
class="sb-paragraph__input"
ref={inputEl}
contenteditable
onInput={onTextUpdate}
onFocus={onFocus}
onBlur={onBlur}
onKeydown={onKeydown}
onKeyup={onKeyup}
></p>
</div>
);
},
});