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node_modules/uni-simple-router/src/public/hooks.ts

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+import {
+    Router,
+    hookListRule,
+    navtoRule,
+    reloadNavRule,
+    totalNextRoute,
+    hookToggle,
+    NAVTYPE,
+    navErrorRule,
+    objectAny
+} from '../options/base';
+import {
+    routesForMapRoute,
+    getDataType,
+    forMatNextToFrom,
+    getUniCachePage,
+    voidFun
+} from '../helpers/utils'
+import { navjump } from './methods';
+import { proxyH5Mount } from '../H5/proxyHook';
+import { tabIndexSelect } from '../app/appPatch';
+
+export const ERRORHOOK:Array<(error:navErrorRule, router:Router)=>void> = [
+    (error, router) => router.lifeCycle.routerErrorHooks[0](error, router)
+]
+export const HOOKLIST: hookListRule = [
+    (router, to, from, toRoute, next) => callHook(router.lifeCycle.routerBeforeHooks[0], to, from, router, next),
+    (router, to, from, toRoute, next) => callBeforeRouteLeave(router, to, from, next),
+    (router, to, from, toRoute, next) => callHook(router.lifeCycle.beforeHooks[0], to, from, router, next),
+    (router, to, from, toRoute, next) => callHook(toRoute.beforeEnter, to, from, router, next),
+    (router, to, from, toRoute, next) => callHook(router.lifeCycle.afterHooks[0], to, from, router, next, false),
+    (router, to, from, toRoute, next) => {
+        router.$lockStatus = false;
+        if (router.options.platform === 'h5') {
+            proxyH5Mount(router);
+        }
+        return callHook(router.lifeCycle.routerAfterHooks[0], to, from, router, next, false)
+    }
+];
+
+export function callBeforeRouteLeave(
+    router:Router,
+    to:totalNextRoute,
+    from:totalNextRoute,
+    resolve:Function
+):void {
+    const page = getUniCachePage<objectAny>(0);
+    let beforeRouteLeave;
+    if (Object.keys(page).length > 0) {
+        let leaveHooks:Array<Function>|undefined|Function;
+        if (router.options.platform === 'h5') {
+            leaveHooks = (page as objectAny).$options.beforeRouteLeave;
+        } else {
+            if ((page as objectAny).$vm != null) {
+                leaveHooks = (page as objectAny).$vm.$options.beforeRouteLeave;
+            }
+        }
+        switch (getDataType<Array<Function>>((leaveHooks as Array<Function>))) {
+        case '[object Array]': // h5端表现
+            beforeRouteLeave = (leaveHooks as Array<Function>)[0];
+            beforeRouteLeave = beforeRouteLeave.bind(page)
+            break;
+        case '[object Function]': // 目前app端表现
+            beforeRouteLeave = (leaveHooks as Function).bind((page as objectAny).$vm);
+            break
+        }
+    }
+    return callHook(beforeRouteLeave, to, from, router, resolve);
+}
+
+export function callHook(
+    hook:Function|undefined,
+    to:totalNextRoute,
+    from: totalNextRoute,
+    router:Router,
+    resolve:Function,
+    hookAwait:boolean|undefined = true
+):void {
+    if (hook != null && hook instanceof Function) {
+        if (hookAwait === true) {
+            hook(to, from, resolve, router, false);
+        } else {
+            hook(to, from, () => {}, router, false);
+            resolve();
+        }
+    } else {
+        resolve();
+    }
+}
+
+export function onTriggerEachHook(
+    to:totalNextRoute,
+    from: totalNextRoute,
+    router:Router,
+    hookType:hookToggle,
+    next:(rule?: navtoRule|false)=>void,
+):void {
+    let callHookList:hookListRule = [];
+    switch (hookType) {
+    case 'beforeEach':
+        callHookList = HOOKLIST.slice(0, 3);
+        break;
+    case 'afterEach':
+        callHookList = HOOKLIST.slice(4);
+        break
+    case 'beforeEnter':
+        callHookList = HOOKLIST.slice(3, 4);
+        break;
+    }
+    transitionTo(router, to, from, 'push', callHookList, next);
+}
+
+export function transitionTo(
+    router:Router,
+    to:totalNextRoute,
+    from: totalNextRoute,
+    navType:NAVTYPE,
+    callHookList:hookListRule,
+    hookCB:Function
+) :void{
+    const {matTo, matFrom} = forMatNextToFrom<totalNextRoute>(router, to, from);
+    if (router.options.platform === 'h5') {
+        loopCallHook(callHookList, 0, hookCB, router, matTo, matFrom, navType);
+    } else {
+        loopCallHook(callHookList.slice(0, 4), 0, () => {
+            hookCB(() => { // 非H5端等他跳转完才触发最后两个生命周期
+                loopCallHook(callHookList.slice(4), 0, voidFun, router, matTo, matFrom, navType);
+            });
+        }, router, matTo, matFrom, navType);
+    }
+}
+
+export function loopCallHook(
+    hooks:hookListRule,
+    index:number,
+    next:Function,
+    router:Router,
+    matTo:totalNextRoute,
+    matFrom: totalNextRoute,
+    navType:NAVTYPE,
+): void|Function {
+    const toRoute = routesForMapRoute(router, matTo.path, ['finallyPathMap', 'pathMap']);
+    if (hooks.length - 1 < index) {
+        return next();
+    }
+    const hook = hooks[index];
+    const errHook = ERRORHOOK[0];
+    hook(router, matTo, matFrom, toRoute, (nextTo:reloadNavRule) => {
+        if (router.options.platform === 'app-plus') {
+            if (nextTo === false || (typeof nextTo === 'string' || typeof nextTo === 'object')) {
+                tabIndexSelect(matTo, matFrom);
+            }
+        }
+        if (nextTo === false) {
+            if (router.options.platform === 'h5') {
+                next(false);
+            }
+            errHook({ type: 0, msg: '管道函数传递 false 导航被终止!', matTo, matFrom, nextTo }, router)
+        } else if (typeof nextTo === 'string' || typeof nextTo === 'object') {
+            let newNavType = navType;
+            let newNextTo = nextTo;
+            if (typeof nextTo === 'object') {
+                const {NAVTYPE: type, ...moreTo} = nextTo;
+                newNextTo = moreTo;
+                if (type != null) {
+                    newNavType = type;
+                }
+            }
+            navjump(newNextTo, router, newNavType, {from: matFrom, next})
+        } else if (nextTo == null) {
+            index++;
+            loopCallHook(hooks, index, next, router, matTo, matFrom, navType)
+        } else {
+            errHook({ type: 1, msg: '管道函数传递未知类型，无法被识别。导航被终止！', matTo, matFrom, nextTo }, router)
+        }
+    });
+}