import {
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initWebview,
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createWebview
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} from './webview'
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import {
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navigateFinish
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} from './navigator'
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import tabBar from '../framework/tab-bar'
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import {
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createPage
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} from '../../page-factory'
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import {
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loadPage
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} from './load-sub-package'
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import {
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initEntryPage
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} from './config'
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const pages = []
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export function getCurrentPages (returnAll) {
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return returnAll ? pages.slice(0) : pages.filter(page => {
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return !page.$page.meta.isTabBar || page.$page.meta.visible
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})
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}
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export function getCurrentPageId () {
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const pages = getCurrentPages()
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return pages[pages.length - 1].$page.id
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}
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const preloadWebviews = {}
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export function removePreloadWebview (webview) {
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const url = Object.keys(preloadWebviews).find(url => preloadWebviews[url].id === webview.id)
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if (url) {
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if (process.env.NODE_ENV !== 'production') {
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console.log(`[uni-app] removePreloadWebview(${webview.id})`)
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}
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delete preloadWebviews[url]
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}
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}
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export function closePreloadWebview ({
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url
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}) {
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const webview = preloadWebviews[url]
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if (webview) {
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if (webview.__page__) {
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if (!getCurrentPages(true).find(page => page === webview.__page__)) {
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// 未使用
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webview.close('none')
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} else { // 被使用
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webview.__preload__ = false
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}
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} else { // 未使用
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webview.close('none')
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}
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delete preloadWebviews[url]
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}
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return webview
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}
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export function preloadWebview ({
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url,
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path,
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query
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}) {
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if (!preloadWebviews[url]) {
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const routeOptions = JSON.parse(JSON.stringify(__uniRoutes.find(route => route.path === path)))
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preloadWebviews[url] = createWebview(path, routeOptions, query, {
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__preload__: true,
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__query__: JSON.stringify(query)
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})
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}
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return preloadWebviews[url]
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}
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/**
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* 首页需要主动registerPage，二级页面路由跳转时registerPage
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*/
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export function registerPage ({
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url,
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path,
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query,
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openType,
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webview,
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eventChannel
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}) {
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// fast 模式，nvue 首页时，初始化下 entry page
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webview && initEntryPage()
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if (preloadWebviews[url]) {
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webview = preloadWebviews[url]
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if (webview.__page__) {
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// 该预载页面已处于显示状态,不再使用该预加载页面,直接新开
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if (getCurrentPages(true).find(page => page === webview.__page__)) {
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if (process.env.NODE_ENV !== 'production') {
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console.log(`[uni-app] preloadWebview(${path},${webview.id}) already in use`)
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}
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webview = null
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} else {
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if (eventChannel) {
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webview.__page__.eventChannel = eventChannel
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}
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pages.push(webview.__page__)
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if (process.env.NODE_ENV !== 'production') {
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console.log(`[uni-app] reuse preloadWebview(${path},${webview.id})`)
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}
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return webview
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}
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}
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}
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const routeOptions = JSON.parse(JSON.stringify(__uniRoutes.find(route => route.path === path)))
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if (
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openType === 'reLaunch' ||
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(
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!__uniConfig.realEntryPagePath &&
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getCurrentPages().length === 0 // redirectTo
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)
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) {
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routeOptions.meta.isQuit = true
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} else if (!routeOptions.meta.isTabBar) {
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routeOptions.meta.isQuit = false
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}
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if (!webview) {
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webview = createWebview(path, routeOptions, query)
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} else {
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webview = plus.webview.getWebviewById(webview.id)
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webview.nvue = routeOptions.meta.isNVue
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}
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if (routeOptions.meta.isTabBar) {
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routeOptions.meta.visible = true
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}
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if (routeOptions.meta.isTabBar) {
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tabBar.append(webview)
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}
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if (process.env.NODE_ENV !== 'production') {
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console.log(`[uni-app] registerPage(${path},${webview.id})`)
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}
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const isLaunchNVuePage = webview.id === '1' && webview.nvue
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initWebview(webview, routeOptions, path, query)
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const route = path.slice(1)
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webview.__uniapp_route = route
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const pageInstance = {
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route,
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options: Object.assign({}, query || {}),
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$getAppWebview () {
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// 重要，不能直接返回 webview 对象，因为 plus 可能会被二次替换，返回的 webview 对象内部的 plus 不正确
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// 导致 webview.getStyle 等逻辑出错(旧的 webview 内部 plus 被释放)
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return plus.webview.getWebviewById(webview.id)
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},
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eventChannel,
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$page: {
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id: parseInt(webview.id),
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meta: routeOptions.meta,
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path,
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route,
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fullPath: url,
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openType
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},
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$remove () {
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const index = pages.findIndex(page => page === this)
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if (index !== -1) {
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if (!webview.nvue) {
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this.$vm.$destroy()
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}
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pages.splice(index, 1)
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if (process.env.NODE_ENV !== 'production') {
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console.log('[uni-app] removePage(' + path + ')[' + webview.id + ']')
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}
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}
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},
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// 兼容小程序框架
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selectComponent (selector) {
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return this.$vm.selectComponent(selector)
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},
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selectAllComponents (selector) {
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return this.$vm.selectAllComponents(selector)
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}
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}
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pages.push(pageInstance)
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if (webview.__preload__) {
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webview.__page__ = pageInstance
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}
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// 首页是 nvue 时，在 registerPage 时，执行路由堆栈
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if (isLaunchNVuePage) {
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if (
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__uniConfig.splashscreen &&
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__uniConfig.splashscreen.autoclose &&
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!__uniConfig.splashscreen.alwaysShowBeforeRender
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) {
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plus.navigator.closeSplashscreen()
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}
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__uniConfig.onReady(function () {
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navigateFinish(webview)
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})
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}
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if (__PLATFORM__ === 'app-plus') {
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if (!webview.nvue) {
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const pageId = webview.id
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try {
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loadPage(route, () => {
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createPage(route, pageId, query, pageInstance).$mount()
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})
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} catch (e) {
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console.error(e)
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}
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}
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}
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return webview
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}
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