mldong-flow-designer-plus
Version:
本项目包含了作者为B站课堂视频[《工作流设计器开发最佳实践》](https://www.bilibili.com/cheese/play/ss24484)的过程源码。教程中开发的组件也可用于实际生产环境中。以下是和使用文档和课程章节说明。 ## 实战项目 [演示地址](https://flow-pro.mldong.com/)
661 lines (660 loc) • 25.8 kB
JavaScript
import { computed, getCurrentInstance, defineComponent, useAttrs as useAttrs$1, useSlots, shallowRef, ref, watch, nextTick, onMounted, toRef, openBlock, createElementBlock, normalizeClass, unref, normalizeStyle, createCommentVNode, Fragment, renderSlot, createElementVNode, createBlock, withCtx, resolveDynamicComponent, mergeProps, withModifiers, createVNode, toDisplayString } from "vue";
import { u as useResizeObserver } from "./index-B5MEhWj_.js";
import { i as iconPropType, V as ValidateComponentsMap, v as view_default, h as hide_default, E as ElIcon, a as circle_close_default } from "./icon-DV3tCSN7.js";
import { h as isClient, j as isNumber, b as buildProps, d as definePropType, c as isString, f as debugWarn, u as useNamespace, N as NOOP, k as isObject, _ as _export_sfc, w as withInstall } from "./install-La2G4dPY.js";
import { u as useSizeProp } from "./index-CLW2rQKZ.js";
import { m as mutable } from "./typescript-D6L75muK.js";
import { u as useAriaProps } from "./index-Ds80FYRq.js";
import { U as UPDATE_MODEL_EVENT } from "./event-DSz0kuqc.js";
import { h as fromPairs, j as isNil } from "./index-BLhyZWKY.js";
import { u as useFormItem, e as useFormItemInputId, a as useFormSize, b as useFormDisabled } from "./use-form-common-props-BwON8RcZ.js";
import { u as useFocusController, a as useComposition } from "./index-BVZ8Smzo.js";
const isFirefox = () => isClient && /firefox/i.test(window.navigator.userAgent);
let hiddenTextarea = void 0;
const HIDDEN_STYLE = `
height:0 !important;
visibility:hidden !important;
${isFirefox() ? "" : "overflow:hidden !important;"}
position:absolute !important;
z-index:-1000 !important;
top:0 !important;
right:0 !important;
`;
const CONTEXT_STYLE = [
"letter-spacing",
"line-height",
"padding-top",
"padding-bottom",
"font-family",
"font-weight",
"font-size",
"text-rendering",
"text-transform",
"width",
"text-indent",
"padding-left",
"padding-right",
"border-width",
"box-sizing"
];
function calculateNodeStyling(targetElement) {
const style = window.getComputedStyle(targetElement);
const boxSizing = style.getPropertyValue("box-sizing");
const paddingSize = Number.parseFloat(style.getPropertyValue("padding-bottom")) + Number.parseFloat(style.getPropertyValue("padding-top"));
const borderSize = Number.parseFloat(style.getPropertyValue("border-bottom-width")) + Number.parseFloat(style.getPropertyValue("border-top-width"));
const contextStyle = CONTEXT_STYLE.map((name) => `${name}:${style.getPropertyValue(name)}`).join(";");
return { contextStyle, paddingSize, borderSize, boxSizing };
}
function calcTextareaHeight(targetElement, minRows = 1, maxRows) {
var _a;
if (!hiddenTextarea) {
hiddenTextarea = document.createElement("textarea");
document.body.appendChild(hiddenTextarea);
}
const { paddingSize, borderSize, boxSizing, contextStyle } = calculateNodeStyling(targetElement);
hiddenTextarea.setAttribute("style", `${contextStyle};${HIDDEN_STYLE}`);
hiddenTextarea.value = targetElement.value || targetElement.placeholder || "";
let height = hiddenTextarea.scrollHeight;
const result = {};
if (boxSizing === "border-box") {
height = height + borderSize;
} else if (boxSizing === "content-box") {
height = height - paddingSize;
}
hiddenTextarea.value = "";
const singleRowHeight = hiddenTextarea.scrollHeight - paddingSize;
if (isNumber(minRows)) {
let minHeight = singleRowHeight * minRows;
if (boxSizing === "border-box") {
minHeight = minHeight + paddingSize + borderSize;
}
height = Math.max(minHeight, height);
result.minHeight = `${minHeight}px`;
}
if (isNumber(maxRows)) {
let maxHeight = singleRowHeight * maxRows;
if (boxSizing === "border-box") {
maxHeight = maxHeight + paddingSize + borderSize;
}
height = Math.min(maxHeight, height);
}
result.height = `${height}px`;
(_a = hiddenTextarea.parentNode) == null ? void 0 : _a.removeChild(hiddenTextarea);
hiddenTextarea = void 0;
return result;
}
const inputProps = buildProps({
id: {
type: String,
default: void 0
},
size: useSizeProp,
disabled: Boolean,
modelValue: {
type: definePropType([
String,
Number,
Object
]),
default: ""
},
maxlength: {
type: [String, Number]
},
minlength: {
type: [String, Number]
},
type: {
type: String,
default: "text"
},
resize: {
type: String,
values: ["none", "both", "horizontal", "vertical"]
},
autosize: {
type: definePropType([Boolean, Object]),
default: false
},
autocomplete: {
type: String,
default: "off"
},
formatter: {
type: Function
},
parser: {
type: Function
},
placeholder: {
type: String
},
form: {
type: String
},
readonly: Boolean,
clearable: Boolean,
showPassword: Boolean,
showWordLimit: Boolean,
suffixIcon: {
type: iconPropType
},
prefixIcon: {
type: iconPropType
},
containerRole: {
type: String,
default: void 0
},
tabindex: {
type: [String, Number],
default: 0
},
validateEvent: {
type: Boolean,
default: true
},
inputStyle: {
type: definePropType([Object, Array, String]),
default: () => mutable({})
},
autofocus: Boolean,
rows: {
type: Number,
default: 2
},
...useAriaProps(["ariaLabel"])
});
const inputEmits = {
[UPDATE_MODEL_EVENT]: (value) => isString(value),
input: (value) => isString(value),
change: (value) => isString(value),
focus: (evt) => evt instanceof FocusEvent,
blur: (evt) => evt instanceof FocusEvent,
clear: () => true,
mouseleave: (evt) => evt instanceof MouseEvent,
mouseenter: (evt) => evt instanceof MouseEvent,
keydown: (evt) => evt instanceof Event,
compositionstart: (evt) => evt instanceof CompositionEvent,
compositionupdate: (evt) => evt instanceof CompositionEvent,
compositionend: (evt) => evt instanceof CompositionEvent
};
const DEFAULT_EXCLUDE_KEYS = ["class", "style"];
const LISTENER_PREFIX = /^on[A-Z]/;
const useAttrs = (params = {}) => {
const { excludeListeners = false, excludeKeys } = params;
const allExcludeKeys = computed(() => {
return ((excludeKeys == null ? void 0 : excludeKeys.value) || []).concat(DEFAULT_EXCLUDE_KEYS);
});
const instance = getCurrentInstance();
if (!instance) {
debugWarn("use-attrs", "getCurrentInstance() returned null. useAttrs() must be called at the top of a setup function");
return computed(() => ({}));
}
return computed(() => {
var _a;
return fromPairs(Object.entries((_a = instance.proxy) == null ? void 0 : _a.$attrs).filter(([key]) => !allExcludeKeys.value.includes(key) && !(excludeListeners && LISTENER_PREFIX.test(key))));
});
};
function useCursor(input) {
let selectionInfo;
function recordCursor() {
if (input.value == void 0)
return;
const { selectionStart, selectionEnd, value } = input.value;
if (selectionStart == null || selectionEnd == null)
return;
const beforeTxt = value.slice(0, Math.max(0, selectionStart));
const afterTxt = value.slice(Math.max(0, selectionEnd));
selectionInfo = {
selectionStart,
selectionEnd,
value,
beforeTxt,
afterTxt
};
}
function setCursor() {
if (input.value == void 0 || selectionInfo == void 0)
return;
const { value } = input.value;
const { beforeTxt, afterTxt, selectionStart } = selectionInfo;
if (beforeTxt == void 0 || afterTxt == void 0 || selectionStart == void 0)
return;
let startPos = value.length;
if (value.endsWith(afterTxt)) {
startPos = value.length - afterTxt.length;
} else if (value.startsWith(beforeTxt)) {
startPos = beforeTxt.length;
} else {
const beforeLastChar = beforeTxt[selectionStart - 1];
const newIndex = value.indexOf(beforeLastChar, selectionStart - 1);
if (newIndex !== -1) {
startPos = newIndex + 1;
}
}
input.value.setSelectionRange(startPos, startPos);
}
return [recordCursor, setCursor];
}
const __default__ = defineComponent({
name: "ElInput",
inheritAttrs: false
});
const _sfc_main = /* @__PURE__ */ defineComponent({
...__default__,
props: inputProps,
emits: inputEmits,
setup(__props, { expose, emit }) {
const props = __props;
const rawAttrs = useAttrs$1();
const attrs = useAttrs();
const slots = useSlots();
const containerKls = computed(() => [
props.type === "textarea" ? nsTextarea.b() : nsInput.b(),
nsInput.m(inputSize.value),
nsInput.is("disabled", inputDisabled.value),
nsInput.is("exceed", inputExceed.value),
{
[nsInput.b("group")]: slots.prepend || slots.append,
[nsInput.m("prefix")]: slots.prefix || props.prefixIcon,
[nsInput.m("suffix")]: slots.suffix || props.suffixIcon || props.clearable || props.showPassword,
[nsInput.bm("suffix", "password-clear")]: showClear.value && showPwdVisible.value,
[nsInput.b("hidden")]: props.type === "hidden"
},
rawAttrs.class
]);
const wrapperKls = computed(() => [
nsInput.e("wrapper"),
nsInput.is("focus", isFocused.value)
]);
const { form: elForm, formItem: elFormItem } = useFormItem();
const { inputId } = useFormItemInputId(props, {
formItemContext: elFormItem
});
const inputSize = useFormSize();
const inputDisabled = useFormDisabled();
const nsInput = useNamespace("input");
const nsTextarea = useNamespace("textarea");
const input = shallowRef();
const textarea = shallowRef();
const hovering = ref(false);
const passwordVisible = ref(false);
const countStyle = ref();
const textareaCalcStyle = shallowRef(props.inputStyle);
const _ref = computed(() => input.value || textarea.value);
const { wrapperRef, isFocused, handleFocus, handleBlur } = useFocusController(_ref, {
beforeFocus() {
return inputDisabled.value;
},
afterBlur() {
var _a;
if (props.validateEvent) {
(_a = elFormItem == null ? void 0 : elFormItem.validate) == null ? void 0 : _a.call(elFormItem, "blur").catch((err) => debugWarn(err));
}
}
});
const needStatusIcon = computed(() => {
var _a;
return (_a = elForm == null ? void 0 : elForm.statusIcon) != null ? _a : false;
});
const validateState = computed(() => (elFormItem == null ? void 0 : elFormItem.validateState) || "");
const validateIcon = computed(() => validateState.value && ValidateComponentsMap[validateState.value]);
const passwordIcon = computed(() => passwordVisible.value ? view_default : hide_default);
const containerStyle = computed(() => [
rawAttrs.style
]);
const textareaStyle = computed(() => [
props.inputStyle,
textareaCalcStyle.value,
{ resize: props.resize }
]);
const nativeInputValue = computed(() => isNil(props.modelValue) ? "" : String(props.modelValue));
const showClear = computed(() => props.clearable && !inputDisabled.value && !props.readonly && !!nativeInputValue.value && (isFocused.value || hovering.value));
const showPwdVisible = computed(() => props.showPassword && !inputDisabled.value && !!nativeInputValue.value && (!!nativeInputValue.value || isFocused.value));
const isWordLimitVisible = computed(() => props.showWordLimit && !!props.maxlength && (props.type === "text" || props.type === "textarea") && !inputDisabled.value && !props.readonly && !props.showPassword);
const textLength = computed(() => nativeInputValue.value.length);
const inputExceed = computed(() => !!isWordLimitVisible.value && textLength.value > Number(props.maxlength));
const suffixVisible = computed(() => !!slots.suffix || !!props.suffixIcon || showClear.value || props.showPassword || isWordLimitVisible.value || !!validateState.value && needStatusIcon.value);
const [recordCursor, setCursor] = useCursor(input);
useResizeObserver(textarea, (entries) => {
onceInitSizeTextarea();
if (!isWordLimitVisible.value || props.resize !== "both")
return;
const entry = entries[0];
const { width } = entry.contentRect;
countStyle.value = {
right: `calc(100% - ${width + 15 + 6}px)`
};
});
const resizeTextarea = () => {
const { type, autosize } = props;
if (!isClient || type !== "textarea" || !textarea.value)
return;
if (autosize) {
const minRows = isObject(autosize) ? autosize.minRows : void 0;
const maxRows = isObject(autosize) ? autosize.maxRows : void 0;
const textareaStyle2 = calcTextareaHeight(textarea.value, minRows, maxRows);
textareaCalcStyle.value = {
overflowY: "hidden",
...textareaStyle2
};
nextTick(() => {
textarea.value.offsetHeight;
textareaCalcStyle.value = textareaStyle2;
});
} else {
textareaCalcStyle.value = {
minHeight: calcTextareaHeight(textarea.value).minHeight
};
}
};
const createOnceInitResize = (resizeTextarea2) => {
let isInit = false;
return () => {
var _a;
if (isInit || !props.autosize)
return;
const isElHidden = ((_a = textarea.value) == null ? void 0 : _a.offsetParent) === null;
if (!isElHidden) {
resizeTextarea2();
isInit = true;
}
};
};
const onceInitSizeTextarea = createOnceInitResize(resizeTextarea);
const setNativeInputValue = () => {
const input2 = _ref.value;
const formatterValue = props.formatter ? props.formatter(nativeInputValue.value) : nativeInputValue.value;
if (!input2 || input2.value === formatterValue)
return;
input2.value = formatterValue;
};
const handleInput = async (event) => {
recordCursor();
let { value } = event.target;
if (props.formatter) {
value = props.parser ? props.parser(value) : value;
}
if (isComposing.value)
return;
if (value === nativeInputValue.value) {
setNativeInputValue();
return;
}
emit(UPDATE_MODEL_EVENT, value);
emit("input", value);
await nextTick();
setNativeInputValue();
setCursor();
};
const handleChange = (event) => {
emit("change", event.target.value);
};
const {
isComposing,
handleCompositionStart,
handleCompositionUpdate,
handleCompositionEnd
} = useComposition({ emit, afterComposition: handleInput });
const handlePasswordVisible = () => {
recordCursor();
passwordVisible.value = !passwordVisible.value;
setTimeout(setCursor);
};
const focus = () => {
var _a;
return (_a = _ref.value) == null ? void 0 : _a.focus();
};
const blur = () => {
var _a;
return (_a = _ref.value) == null ? void 0 : _a.blur();
};
const handleMouseLeave = (evt) => {
hovering.value = false;
emit("mouseleave", evt);
};
const handleMouseEnter = (evt) => {
hovering.value = true;
emit("mouseenter", evt);
};
const handleKeydown = (evt) => {
emit("keydown", evt);
};
const select = () => {
var _a;
(_a = _ref.value) == null ? void 0 : _a.select();
};
const clear = () => {
emit(UPDATE_MODEL_EVENT, "");
emit("change", "");
emit("clear");
emit("input", "");
};
watch(() => props.modelValue, () => {
var _a;
nextTick(() => resizeTextarea());
if (props.validateEvent) {
(_a = elFormItem == null ? void 0 : elFormItem.validate) == null ? void 0 : _a.call(elFormItem, "change").catch((err) => debugWarn(err));
}
});
watch(nativeInputValue, () => setNativeInputValue());
watch(() => props.type, async () => {
await nextTick();
setNativeInputValue();
resizeTextarea();
});
onMounted(() => {
if (!props.formatter && props.parser) {
debugWarn("ElInput", "If you set the parser, you also need to set the formatter.");
}
setNativeInputValue();
nextTick(resizeTextarea);
});
expose({
input,
textarea,
ref: _ref,
textareaStyle,
autosize: toRef(props, "autosize"),
isComposing,
focus,
blur,
select,
clear,
resizeTextarea
});
return (_ctx, _cache) => {
return openBlock(), createElementBlock("div", {
class: normalizeClass([
unref(containerKls),
{
[unref(nsInput).bm("group", "append")]: _ctx.$slots.append,
[unref(nsInput).bm("group", "prepend")]: _ctx.$slots.prepend
}
]),
style: normalizeStyle(unref(containerStyle)),
onMouseenter: handleMouseEnter,
onMouseleave: handleMouseLeave
}, [
createCommentVNode(" input "),
_ctx.type !== "textarea" ? (openBlock(), createElementBlock(Fragment, { key: 0 }, [
createCommentVNode(" prepend slot "),
_ctx.$slots.prepend ? (openBlock(), createElementBlock("div", {
key: 0,
class: normalizeClass(unref(nsInput).be("group", "prepend"))
}, [
renderSlot(_ctx.$slots, "prepend")
], 2)) : createCommentVNode("v-if", true),
createElementVNode("div", {
ref_key: "wrapperRef",
ref: wrapperRef,
class: normalizeClass(unref(wrapperKls))
}, [
createCommentVNode(" prefix slot "),
_ctx.$slots.prefix || _ctx.prefixIcon ? (openBlock(), createElementBlock("span", {
key: 0,
class: normalizeClass(unref(nsInput).e("prefix"))
}, [
createElementVNode("span", {
class: normalizeClass(unref(nsInput).e("prefix-inner"))
}, [
renderSlot(_ctx.$slots, "prefix"),
_ctx.prefixIcon ? (openBlock(), createBlock(unref(ElIcon), {
key: 0,
class: normalizeClass(unref(nsInput).e("icon"))
}, {
default: withCtx(() => [
(openBlock(), createBlock(resolveDynamicComponent(_ctx.prefixIcon)))
]),
_: 1
}, 8, ["class"])) : createCommentVNode("v-if", true)
], 2)
], 2)) : createCommentVNode("v-if", true),
createElementVNode("input", mergeProps({
id: unref(inputId),
ref_key: "input",
ref: input,
class: unref(nsInput).e("inner")
}, unref(attrs), {
minlength: _ctx.minlength,
maxlength: _ctx.maxlength,
type: _ctx.showPassword ? passwordVisible.value ? "text" : "password" : _ctx.type,
disabled: unref(inputDisabled),
readonly: _ctx.readonly,
autocomplete: _ctx.autocomplete,
tabindex: _ctx.tabindex,
"aria-label": _ctx.ariaLabel,
placeholder: _ctx.placeholder,
style: _ctx.inputStyle,
form: _ctx.form,
autofocus: _ctx.autofocus,
role: _ctx.containerRole,
onCompositionstart: unref(handleCompositionStart),
onCompositionupdate: unref(handleCompositionUpdate),
onCompositionend: unref(handleCompositionEnd),
onInput: handleInput,
onChange: handleChange,
onKeydown: handleKeydown
}), null, 16, ["id", "minlength", "maxlength", "type", "disabled", "readonly", "autocomplete", "tabindex", "aria-label", "placeholder", "form", "autofocus", "role", "onCompositionstart", "onCompositionupdate", "onCompositionend"]),
createCommentVNode(" suffix slot "),
unref(suffixVisible) ? (openBlock(), createElementBlock("span", {
key: 1,
class: normalizeClass(unref(nsInput).e("suffix"))
}, [
createElementVNode("span", {
class: normalizeClass(unref(nsInput).e("suffix-inner"))
}, [
!unref(showClear) || !unref(showPwdVisible) || !unref(isWordLimitVisible) ? (openBlock(), createElementBlock(Fragment, { key: 0 }, [
renderSlot(_ctx.$slots, "suffix"),
_ctx.suffixIcon ? (openBlock(), createBlock(unref(ElIcon), {
key: 0,
class: normalizeClass(unref(nsInput).e("icon"))
}, {
default: withCtx(() => [
(openBlock(), createBlock(resolveDynamicComponent(_ctx.suffixIcon)))
]),
_: 1
}, 8, ["class"])) : createCommentVNode("v-if", true)
], 64)) : createCommentVNode("v-if", true),
unref(showClear) ? (openBlock(), createBlock(unref(ElIcon), {
key: 1,
class: normalizeClass([unref(nsInput).e("icon"), unref(nsInput).e("clear")]),
onMousedown: withModifiers(unref(NOOP), ["prevent"]),
onClick: clear
}, {
default: withCtx(() => [
createVNode(unref(circle_close_default))
]),
_: 1
}, 8, ["class", "onMousedown"])) : createCommentVNode("v-if", true),
unref(showPwdVisible) ? (openBlock(), createBlock(unref(ElIcon), {
key: 2,
class: normalizeClass([unref(nsInput).e("icon"), unref(nsInput).e("password")]),
onClick: handlePasswordVisible
}, {
default: withCtx(() => [
(openBlock(), createBlock(resolveDynamicComponent(unref(passwordIcon))))
]),
_: 1
}, 8, ["class"])) : createCommentVNode("v-if", true),
unref(isWordLimitVisible) ? (openBlock(), createElementBlock("span", {
key: 3,
class: normalizeClass(unref(nsInput).e("count"))
}, [
createElementVNode("span", {
class: normalizeClass(unref(nsInput).e("count-inner"))
}, toDisplayString(unref(textLength)) + " / " + toDisplayString(_ctx.maxlength), 3)
], 2)) : createCommentVNode("v-if", true),
unref(validateState) && unref(validateIcon) && unref(needStatusIcon) ? (openBlock(), createBlock(unref(ElIcon), {
key: 4,
class: normalizeClass([
unref(nsInput).e("icon"),
unref(nsInput).e("validateIcon"),
unref(nsInput).is("loading", unref(validateState) === "validating")
])
}, {
default: withCtx(() => [
(openBlock(), createBlock(resolveDynamicComponent(unref(validateIcon))))
]),
_: 1
}, 8, ["class"])) : createCommentVNode("v-if", true)
], 2)
], 2)) : createCommentVNode("v-if", true)
], 2),
createCommentVNode(" append slot "),
_ctx.$slots.append ? (openBlock(), createElementBlock("div", {
key: 1,
class: normalizeClass(unref(nsInput).be("group", "append"))
}, [
renderSlot(_ctx.$slots, "append")
], 2)) : createCommentVNode("v-if", true)
], 64)) : (openBlock(), createElementBlock(Fragment, { key: 1 }, [
createCommentVNode(" textarea "),
createElementVNode("textarea", mergeProps({
id: unref(inputId),
ref_key: "textarea",
ref: textarea,
class: [unref(nsTextarea).e("inner"), unref(nsInput).is("focus", unref(isFocused))]
}, unref(attrs), {
minlength: _ctx.minlength,
maxlength: _ctx.maxlength,
tabindex: _ctx.tabindex,
disabled: unref(inputDisabled),
readonly: _ctx.readonly,
autocomplete: _ctx.autocomplete,
style: unref(textareaStyle),
"aria-label": _ctx.ariaLabel,
placeholder: _ctx.placeholder,
form: _ctx.form,
autofocus: _ctx.autofocus,
rows: _ctx.rows,
role: _ctx.containerRole,
onCompositionstart: unref(handleCompositionStart),
onCompositionupdate: unref(handleCompositionUpdate),
onCompositionend: unref(handleCompositionEnd),
onInput: handleInput,
onFocus: unref(handleFocus),
onBlur: unref(handleBlur),
onChange: handleChange,
onKeydown: handleKeydown
}), null, 16, ["id", "minlength", "maxlength", "tabindex", "disabled", "readonly", "autocomplete", "aria-label", "placeholder", "form", "autofocus", "rows", "role", "onCompositionstart", "onCompositionupdate", "onCompositionend", "onFocus", "onBlur"]),
unref(isWordLimitVisible) ? (openBlock(), createElementBlock("span", {
key: 0,
style: normalizeStyle(countStyle.value),
class: normalizeClass(unref(nsInput).e("count"))
}, toDisplayString(unref(textLength)) + " / " + toDisplayString(_ctx.maxlength), 7)) : createCommentVNode("v-if", true)
], 64))
], 38);
};
}
});
var Input = /* @__PURE__ */ _export_sfc(_sfc_main, [["__file", "input.vue"]]);
const ElInput = withInstall(Input);
export {
ElInput,
ElInput as default,
inputEmits,
inputProps
};
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