element-plus
Version:
A Component Library for Vue3.0
380 lines (374 loc) • 12.5 kB
JavaScript
import { defineComponent, ref, computed, watch, nextTick, onMounted, openBlock, createBlock, Transition, withCtx, createVNode, withModifiers, createCommentVNode, Fragment, renderList, withDirectives, vShow } from 'vue';
import { isFirefox, rafThrottle } from '../utils/util';
import { on, off } from '../utils/dom';
import { EVENT_CODE } from '../utils/aria';
import { t } from '../locale';
var __defProp = Object.defineProperty;
var __defProps = Object.defineProperties;
var __getOwnPropDescs = Object.getOwnPropertyDescriptors;
var __getOwnPropSymbols = Object.getOwnPropertySymbols;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __propIsEnum = Object.prototype.propertyIsEnumerable;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __spreadValues = (a, b) => {
for (var prop in b || (b = {}))
if (__hasOwnProp.call(b, prop))
__defNormalProp(a, prop, b[prop]);
if (__getOwnPropSymbols)
for (var prop of __getOwnPropSymbols(b)) {
if (__propIsEnum.call(b, prop))
__defNormalProp(a, prop, b[prop]);
}
return a;
};
var __spreadProps = (a, b) => __defProps(a, __getOwnPropDescs(b));
const Mode = {
CONTAIN: {
name: "contain",
icon: "el-icon-full-screen"
},
ORIGINAL: {
name: "original",
icon: "el-icon-c-scale-to-original"
}
};
const mousewheelEventName = isFirefox() ? "DOMMouseScroll" : "mousewheel";
const CLOSE_EVENT = "close";
const SWITCH_EVENT = "switch";
var script = defineComponent({
name: "ElImageViewer",
props: {
urlList: {
type: Array,
default: []
},
zIndex: {
type: Number,
default: 2e3
},
initialIndex: {
type: Number,
default: 0
},
infinite: {
type: Boolean,
default: true
},
hideOnClickModal: {
type: Boolean,
default: false
}
},
emits: [CLOSE_EVENT, SWITCH_EVENT],
setup(props, { emit }) {
let _keyDownHandler = null;
let _mouseWheelHandler = null;
let _dragHandler = null;
const loading = ref(true);
const index = ref(props.initialIndex);
const wrapper = ref(null);
const img = ref(null);
const mode = ref(Mode.CONTAIN);
let transform = ref({
scale: 1,
deg: 0,
offsetX: 0,
offsetY: 0,
enableTransition: false
});
const isSingle = computed(() => {
const { urlList } = props;
return urlList.length <= 1;
});
const isFirst = computed(() => {
return index.value === 0;
});
const isLast = computed(() => {
return index.value === props.urlList.length - 1;
});
const currentImg = computed(() => {
return props.urlList[index.value];
});
const imgStyle = computed(() => {
const { scale, deg, offsetX, offsetY, enableTransition } = transform.value;
const style = {
transform: `scale(${scale}) rotate(${deg}deg)`,
transition: enableTransition ? "transform .3s" : "",
marginLeft: `${offsetX}px`,
marginTop: `${offsetY}px`
};
if (mode.value.name === Mode.CONTAIN.name) {
style.maxWidth = style.maxHeight = "100%";
}
return style;
});
function hide() {
deviceSupportUninstall();
emit(CLOSE_EVENT);
}
function deviceSupportInstall() {
_keyDownHandler = rafThrottle((e) => {
switch (e.code) {
case EVENT_CODE.esc:
hide();
break;
case EVENT_CODE.space:
toggleMode();
break;
case EVENT_CODE.left:
prev();
break;
case EVENT_CODE.up:
handleActions("zoomIn");
break;
case EVENT_CODE.right:
next();
break;
case EVENT_CODE.down:
handleActions("zoomOut");
break;
}
});
_mouseWheelHandler = rafThrottle((e) => {
const delta = e.wheelDelta ? e.wheelDelta : -e.detail;
if (delta > 0) {
handleActions("zoomIn", {
zoomRate: 0.015,
enableTransition: false
});
} else {
handleActions("zoomOut", {
zoomRate: 0.015,
enableTransition: false
});
}
});
on(document, "keydown", _keyDownHandler);
on(document, mousewheelEventName, _mouseWheelHandler);
}
function deviceSupportUninstall() {
off(document, "keydown", _keyDownHandler);
off(document, mousewheelEventName, _mouseWheelHandler);
_keyDownHandler = null;
_mouseWheelHandler = null;
}
function handleImgLoad() {
loading.value = false;
}
function handleImgError(e) {
loading.value = false;
e.target.alt = t("el.image.error");
}
function handleMouseDown(e) {
if (loading.value || e.button !== 0)
return;
const { offsetX, offsetY } = transform.value;
const startX = e.pageX;
const startY = e.pageY;
_dragHandler = rafThrottle((ev) => {
transform.value = __spreadProps(__spreadValues({}, transform.value), {
offsetX: offsetX + ev.pageX - startX,
offsetY: offsetY + ev.pageY - startY
});
});
on(document, "mousemove", _dragHandler);
on(document, "mouseup", () => {
off(document, "mousemove", _dragHandler);
});
e.preventDefault();
}
function reset() {
transform.value = {
scale: 1,
deg: 0,
offsetX: 0,
offsetY: 0,
enableTransition: false
};
}
function toggleMode() {
if (loading.value)
return;
const modeNames = Object.keys(Mode);
const modeValues = Object.values(Mode);
const currentMode = mode.value.name;
const index2 = modeValues.findIndex((i) => i.name === currentMode);
const nextIndex = (index2 + 1) % modeNames.length;
mode.value = Mode[modeNames[nextIndex]];
reset();
}
function prev() {
if (isFirst.value && !props.infinite)
return;
const len = props.urlList.length;
index.value = (index.value - 1 + len) % len;
}
function next() {
if (isLast.value && !props.infinite)
return;
const len = props.urlList.length;
index.value = (index.value + 1) % len;
}
function handleActions(action, options = {}) {
if (loading.value)
return;
const { zoomRate, rotateDeg, enableTransition } = __spreadValues({
zoomRate: 0.2,
rotateDeg: 90,
enableTransition: true
}, options);
switch (action) {
case "zoomOut":
if (transform.value.scale > 0.2) {
transform.value.scale = parseFloat((transform.value.scale - zoomRate).toFixed(3));
}
break;
case "zoomIn":
transform.value.scale = parseFloat((transform.value.scale + zoomRate).toFixed(3));
break;
case "clocelise":
transform.value.deg += rotateDeg;
break;
case "anticlocelise":
transform.value.deg -= rotateDeg;
break;
}
transform.value.enableTransition = enableTransition;
}
watch(currentImg, () => {
nextTick(() => {
const $img = img.value;
if (!$img.complete) {
loading.value = true;
}
});
});
watch(index, (val) => {
reset();
emit(SWITCH_EVENT, val);
});
onMounted(() => {
var _a, _b;
deviceSupportInstall();
(_b = (_a = wrapper.value) == null ? void 0 : _a.focus) == null ? void 0 : _b.call(_a);
});
return {
index,
wrapper,
img,
isSingle,
isFirst,
isLast,
currentImg,
imgStyle,
mode,
handleActions,
prev,
next,
hide,
toggleMode,
handleImgLoad,
handleImgError,
handleMouseDown
};
}
});
const _hoisted_1 = /* @__PURE__ */ createVNode("i", { class: "el-icon-close" }, null, -1);
const _hoisted_2 = /* @__PURE__ */ createVNode("i", { class: "el-icon-arrow-left" }, null, -1);
const _hoisted_3 = /* @__PURE__ */ createVNode("i", { class: "el-icon-arrow-right" }, null, -1);
const _hoisted_4 = { class: "el-image-viewer__btn el-image-viewer__actions" };
const _hoisted_5 = { class: "el-image-viewer__actions__inner" };
const _hoisted_6 = /* @__PURE__ */ createVNode("i", { class: "el-image-viewer__actions__divider" }, null, -1);
const _hoisted_7 = /* @__PURE__ */ createVNode("i", { class: "el-image-viewer__actions__divider" }, null, -1);
const _hoisted_8 = { class: "el-image-viewer__canvas" };
function render(_ctx, _cache, $props, $setup, $data, $options) {
return openBlock(), createBlock(Transition, { name: "viewer-fade" }, {
default: withCtx(() => [
createVNode("div", {
ref: "wrapper",
tabindex: -1,
class: "el-image-viewer__wrapper",
style: { zIndex: _ctx.zIndex }
}, [
createVNode("div", {
class: "el-image-viewer__mask",
onClick: _cache[1] || (_cache[1] = withModifiers(($event) => _ctx.hideOnClickModal && _ctx.hide(), ["self"]))
}),
createCommentVNode(" CLOSE "),
createVNode("span", {
class: "el-image-viewer__btn el-image-viewer__close",
onClick: _cache[2] || (_cache[2] = (...args) => _ctx.hide && _ctx.hide(...args))
}, [
_hoisted_1
]),
createCommentVNode(" ARROW "),
!_ctx.isSingle ? (openBlock(), createBlock(Fragment, { key: 0 }, [
createVNode("span", {
class: ["el-image-viewer__btn el-image-viewer__prev", { "is-disabled": !_ctx.infinite && _ctx.isFirst }],
onClick: _cache[3] || (_cache[3] = (...args) => _ctx.prev && _ctx.prev(...args))
}, [
_hoisted_2
], 2),
createVNode("span", {
class: ["el-image-viewer__btn el-image-viewer__next", { "is-disabled": !_ctx.infinite && _ctx.isLast }],
onClick: _cache[4] || (_cache[4] = (...args) => _ctx.next && _ctx.next(...args))
}, [
_hoisted_3
], 2)
], 64)) : createCommentVNode("v-if", true),
createCommentVNode(" ACTIONS "),
createVNode("div", _hoisted_4, [
createVNode("div", _hoisted_5, [
createVNode("i", {
class: "el-icon-zoom-out",
onClick: _cache[5] || (_cache[5] = ($event) => _ctx.handleActions("zoomOut"))
}),
createVNode("i", {
class: "el-icon-zoom-in",
onClick: _cache[6] || (_cache[6] = ($event) => _ctx.handleActions("zoomIn"))
}),
_hoisted_6,
createVNode("i", {
class: _ctx.mode.icon,
onClick: _cache[7] || (_cache[7] = (...args) => _ctx.toggleMode && _ctx.toggleMode(...args))
}, null, 2),
_hoisted_7,
createVNode("i", {
class: "el-icon-refresh-left",
onClick: _cache[8] || (_cache[8] = ($event) => _ctx.handleActions("anticlocelise"))
}),
createVNode("i", {
class: "el-icon-refresh-right",
onClick: _cache[9] || (_cache[9] = ($event) => _ctx.handleActions("clocelise"))
})
])
]),
createCommentVNode(" CANVAS "),
createVNode("div", _hoisted_8, [
(openBlock(true), createBlock(Fragment, null, renderList(_ctx.urlList, (url, i) => {
return withDirectives((openBlock(), createBlock("img", {
ref: "img",
key: url,
src: url,
style: _ctx.imgStyle,
class: "el-image-viewer__img",
onLoad: _cache[10] || (_cache[10] = (...args) => _ctx.handleImgLoad && _ctx.handleImgLoad(...args)),
onError: _cache[11] || (_cache[11] = (...args) => _ctx.handleImgError && _ctx.handleImgError(...args)),
onMousedown: _cache[12] || (_cache[12] = (...args) => _ctx.handleMouseDown && _ctx.handleMouseDown(...args))
}, null, 44, ["src"])), [
[vShow, i === _ctx.index]
]);
}), 128))
])
], 4)
]),
_: 1
});
}
script.render = render;
script.__file = "packages/image-viewer/src/index.vue";
script.install = (app) => {
app.component(Image.name, Image);
};
const _ImageViewer = script;
export default _ImageViewer;