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Code Issues Packages Projects Releases Wiki Activity

Slot-based routing (#573)

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This commit is contained in:
Rich Harris
2019-02-21 16:34:07 -05:00
committed by GitHub
parent c637687922
commit e0de230e13
22 changed files with 141 additions and 99 deletions
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8
runtime/internal/error.svelte
View File

@@ -1 +1,7 @@
<svelte:component this={child.component} {...child.props}/>
<h1>{status}</h1>
<p>{error.message}</p>
{#if process.env.NODE_ENV === 'development'}
<pre>{error.stack}</pre>
{/if}

2
runtime/internal/layout.svelte
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@@ -1 +1 @@
<svelte:component this={child.component} {...child.props}/>
<slot></slot>

75
runtime/src/app/app.ts
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@@ -1,5 +1,5 @@
import { writable } from 'svelte/store.mjs';
import Sapper from '@sapper/internal/Sapper.svelte';
import App from '@sapper/internal/App.svelte';
import { stores } from '@sapper/internal/shared';
import { Root, root_preload, ErrorComponent, ignore, components, routes } from '@sapper/internal/manifest-client';
import {
@@ -180,8 +180,13 @@ async function render(redirect: Redirect, branch: any[], props: any, page: Page)
stores.preloading.set(false);
if (root_component) {
root_component.props = props;
root_component.$set(props);
} else {
props.session = session;
props.level0 = {
props: await root_preloaded
};
// first load — remove SSR'd <head> contents
const start = document.querySelector('#sapper-head-start');
const end = document.querySelector('#sapper-head-end');
@@ -192,13 +197,9 @@ async function render(redirect: Redirect, branch: any[], props: any, page: Page)
detach(end);
}
root_component = new Sapper({
root_component = new App({
target,
props: {
Root,
props,
session
},
hydrate: true
});
}
@@ -211,13 +212,14 @@ async function render(redirect: Redirect, branch: any[], props: any, page: Page)
export async function hydrate_target(target: Target): Promise<{
redirect?: Redirect;
props?: any;
branch?: Array<{ Component: ComponentConstructor, preload: (page) => Promise<any>, segment: string }>
branch?: Array<{ Component: ComponentConstructor, preload: (page) => Promise<any>, segment: string }>;
}> {
const { route, page } = target;
const segments = page.path.split('/').filter(Boolean);
let redirect: Redirect = null;
let error: { statusCode: number, message: Error | string } = null;
const props = { error: null, status: 200, segments: [segments[0]] };
const preload_context = {
fetch: (url: string, opts?: any) => fetch(url, opts),
@@ -227,8 +229,9 @@ export async function hydrate_target(target: Target): Promise<{
}
redirect = { statusCode, location };
},
error: (statusCode: number, message: Error | string) => {
error = { statusCode, message };
error: (status: number, error: Error | string) => {
props.error = typeof error === 'string' ? new Error(error) : error;
props.status = status;
}
};
@@ -241,15 +244,19 @@ export async function hydrate_target(target: Target): Promise<{
}
let branch;
let l = 1;
try {
branch = await Promise.all(route.parts.map(async (part, i) => {
props.segments[l] = segments[i + 1]; // TODO make this less confusing
if (!part) return null;
const j = l++;
const segment = segments[i];
if (!session_dirty && current_branch[i] && current_branch[i].segment === segment) return current_branch[i];
const { default: Component, preload } = await load_component(components[part.i]);
const { default: component, preload } = await load_component(components[part.i]);
let preloaded;
if (ready || !initial_data.preloaded[i + 1]) {
@@ -264,49 +271,15 @@ export async function hydrate_target(target: Target): Promise<{
preloaded = initial_data.preloaded[i + 1];
}
return { Component, preloaded, segment };
return (props[`level${j}`] = { component, props: preloaded, segment });
}));
} catch (e) {
error = { statusCode: 500, message: e };
} catch (error) {
props.error = error;
props.status = 500;
branch = [];
}
if (redirect) return { redirect };
if (error) {
// TODO be nice if this was less of a special case
return {
props: {
child: {
component: ErrorComponent,
props: {
error: typeof error.message === 'string' ? new Error(error.message) : error.message,
status: error.statusCode
}
}
},
branch
};
}
const props = Object.assign({}, await root_preloaded, {
child: { segment: segments[0] }
});
let level = props.child;
branch.forEach((node, i) => {
if (!node) return;
level.component = node.Component;
level.props = Object.assign({}, node.preloaded, {
child: { segment: segments[i + 1] }
});
level = level.props.child;
});
return { props, branch };
return { redirect, props, branch };
}
function load_css(chunk: string) {

57
runtime/src/server/middleware/get_page_handler.ts
View File

@@ -9,7 +9,7 @@ import { IGNORE } from '../constants';
import { Manifest, Page, Props, Req, Res } from './types';
import { build_dir, dev, src_dir } from '@sapper/internal/manifest-server';
import { stores } from '@sapper/internal/shared';
import Sapper from '@sapper/internal/Sapper.svelte';
import App from '@sapper/internal/App.svelte';
export function get_page_handler(
manifest: Manifest,
@@ -38,7 +38,7 @@ export function get_page_handler(
}
async function handle_page(page: Page, req: Req, res: Res, status = 200, error: Error | string = null) {
const isSWIndexHtml = req.path === '/service-worker-index.html';
const is_service_worker_index = req.path === '/service-worker-index.html';
const build_info: {
bundler: 'rollup' | 'webpack',
shimport: string | null,
@@ -52,7 +52,7 @@ export function get_page_handler(
// preload main.js and current route
// TODO detect other stuff we can preload? images, CSS, fonts?
let preloaded_chunks = Array.isArray(build_info.assets.main) ? build_info.assets.main : [build_info.assets.main];
if (!error && !isSWIndexHtml) {
if (!error && !is_service_worker_index) {
page.parts.forEach(part => {
if (!part) return;
@@ -152,7 +152,7 @@ export function get_page_handler(
let toPreload = [root_preloaded];
if (!isSWIndexHtml) {
if (!is_service_worker_index) {
toPreload = toPreload.concat(page.parts.map(part => {
if (!part) return null;
@@ -193,48 +193,51 @@ export function get_page_handler(
const segments = req.path.split('/').filter(Boolean);
const props = Object.assign({}, preloaded[0], {
child: {
// TODO make this less confusing
const layout_segments = [segments[0]];
let l = 1;
page.parts.forEach((part, i) => {
layout_segments[l] = segments[i + 1];
if (!part) return null;
l++;
});
const props = {
segments: layout_segments,
status: error ? status : 200,
error: error ? error instanceof Error ? error : { message: error } : null,
session: writable(session),
level0: {
props: preloaded[0]
},
level1: {
segment: segments[0],
props: {}
}
});
};
let level = props.child;
if (!isSWIndexHtml) {
if (!is_service_worker_index) {
let l = 1;
for (let i = 0; i < page.parts.length; i += 1) {
const part = page.parts[i];
if (!part) continue;
Object.assign(level, {
props[`level${l++}`] = {
component: part.component,
props: Object.assign({}, preloaded[i + 1])
});
level.props.child = <Props["child"]>{
segment: segments[i + 1],
props: {}
props: preloaded[i + 1],
segment: segments[i]
};
level = level.props.child;
}
}
if (error) {
props.child.props.error = error instanceof Error ? error : { message: error };
props.child.props.status = status;
}
stores.page.set({
path: req.path,
query: req.query,
params: params
});
const { html, head, css } = Sapper.render({
Root: manifest.root,
props: props,
session: writable(session)
});
const { html, head, css } = App.render(props);
const serialized = {
preloaded: `[${preloaded.map(data => try_serialize(data)).join(',')}]`,

4
src/api/build.ts
View File

@@ -1,7 +1,7 @@
import * as fs from 'fs';
import * as path from 'path';
import minify_html from './utils/minify_html';
import { create_compilers, create_main_manifests, create_manifest_data, create_serviceworker_manifest } from '../core';
import { create_compilers, create_app, create_manifest_data, create_serviceworker_manifest } from '../core';
import { copy_shimport } from './utils/copy_shimport';
import read_template from '../core/read_template';
import { CompileResult } from '../core/create_compilers/interfaces';
@@ -71,7 +71,7 @@ export async function build({
const manifest_data = create_manifest_data(routes);
// create src/node_modules/@sapper/app.mjs and server.mjs
create_main_manifests({
create_app({
bundler,
manifest_data,
cwd,

6
src/api/dev.ts
View File

@@ -4,7 +4,7 @@ import * as http from 'http';
import * as child_process from 'child_process';
import * as ports from 'port-authority';
import { EventEmitter } from 'events';
import { create_manifest_data, create_main_manifests, create_compilers, create_serviceworker_manifest } from '../core';
import { create_manifest_data, create_app, create_compilers, create_serviceworker_manifest } from '../core';
import { Compiler, Compilers } from '../core/create_compilers';
import { CompileResult } from '../core/create_compilers/interfaces';
import Deferred from './utils/Deferred';
@@ -162,7 +162,7 @@ class Watcher extends EventEmitter {
try {
manifest_data = create_manifest_data(routes);
create_main_manifests({
create_app({
bundler: this.bundler,
manifest_data,
dev: true,
@@ -190,7 +190,7 @@ class Watcher extends EventEmitter {
() => {
try {
const new_manifest_data = create_manifest_data(routes);
create_main_manifests({
create_app({
bundler: this.bundler,
manifest_data, // TODO is this right? not new_manifest_data?
dev: true,

1
src/api/utils/copy_runtime.ts
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@@ -6,7 +6,6 @@ const runtime = [
'app.mjs',
'server.mjs',
'internal/shared.mjs',
'internal/Sapper.svelte',
'internal/layout.svelte',
'internal/error.svelte'
].map(file => ({

2
src/core.ts
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@@ -1,3 +1,3 @@
export * from './core/create_manifests';
export * from './core/create_app';
export { default as create_compilers } from './core/create_compilers/index';
export { default as create_manifest_data } from './core/create_manifest_data';

57
src/core/create_manifests.ts → src/core/create_app.ts
View File

@@ -3,7 +3,7 @@ import * as path from 'path';
import { posixify, stringify, walk, write_if_changed } from '../utils';
import { Page, PageComponent, ManifestData } from '../interfaces';
export function create_main_manifests({
export function create_app({
bundler,
manifest_data,
dev_port,
@@ -31,8 +31,11 @@ export function create_main_manifests({
const client_manifest = generate_client_manifest(manifest_data, path_to_routes, bundler, dev, dev_port);
const server_manifest = generate_server_manifest(manifest_data, path_to_routes, cwd, src, dest, dev);
const app = generate_app(manifest_data, path_to_routes);
write_if_changed(`${output}/internal/manifest-client.mjs`, client_manifest);
write_if_changed(`${output}/internal/manifest-server.mjs`, server_manifest);
write_if_changed(`${output}/internal/App.svelte`, app);
}
export function create_serviceworker_manifest({ manifest_data, output, client_files, static_files }: {
@@ -230,6 +233,58 @@ function generate_server_manifest(
`.replace(/^\t{2}/gm, '').trim();
}
function generate_app(manifest_data: ManifestData, path_to_routes: string) {
// TODO remove default layout altogether
const max_depth = Math.max(...manifest_data.pages.map(page => page.parts.filter(Boolean).length));
const levels = [];
for (let i = 0; i < max_depth; i += 1) {
levels.push(i + 1);
}
let l = max_depth;
let pyramid = `<svelte:component this={level${l}.component} {...level${l}.props}/>`;
while (l-- > 1) {
pyramid = `
<svelte:component this={level${l}.component} segment={segments[${l}]} {...level${l}.props}>
{#if level${l + 1}}
${pyramid.replace(/\n/g, '\n\t\t\t\t\t')}
{/if}
</svelte:component>
`.replace(/^\t\t\t/gm, '').trim();
}
return `
<!-- This file is generated by Sapper — do not edit it! -->
<script>
import { setContext } from 'svelte';
import { CONTEXT_KEY } from './shared';
import Layout from '${get_file(path_to_routes, manifest_data.root)}';
import Error from '${get_file(path_to_routes, manifest_data.error)}';
export let session;
export let error;
export let status;
export let segments;
export let level0;
${levels.map(l => `export let level${l} = null;`).join('\n\t\t\t')}
setContext(CONTEXT_KEY, session);
</script>
<Layout segment={segments[0]} {...level0.props}>
{#if error}
<Error {error} {status}/>
{:else}
${pyramid.replace(/\n/g, '\n\t\t\t\t')}
{/if}
</Layout>
`.replace(/^\t\t/gm, '').trim();
}
function get_file(path_to_routes: string, component: PageComponent) {
if (component.default) return `./${component.type}.svelte`;
return posixify(`${path_to_routes}/${component.file}`);

0
test/apps/layout/src/routes/[x]/[y]/[z].html → test/apps/layout/src/routes/[x]/[y]/[z].svelte
View File

6
test/apps/layout/src/routes/[x]/[y]/_layout.html → test/apps/layout/src/routes/[x]/[y]/_layout.svelte
View File

@@ -12,10 +12,10 @@
import { page } from '@sapper/app';
export let count;
export let child;
export let segment;
</script>
<span>y: {$page.params.y} {count}</span>
<svelte:component this={child.component} {...child.props}/>
<slot></slot>
<span>child segment: {child.segment}</span>
<span>child segment: {segment}</span>

6
test/apps/layout/test.ts
View File

@@ -28,7 +28,7 @@ describe('layout', function() {
await page.goto(`${base}/foo/bar/baz`);
const text1 = String(await page.evaluate(() => document.querySelector('#sapper').textContent));
assert.deepEqual(text1.split('\n').filter(Boolean).map(str => str.trim()), [
assert.deepEqual(text1.split('\n').map(str => str.trim()).filter(Boolean), [
'y: bar 1',
'z: baz 1',
'click me',
@@ -37,7 +37,7 @@ describe('layout', function() {
await start();
const text2 = String(await page.evaluate(() => document.querySelector('#sapper').textContent));
assert.deepEqual(text2.split('\n').filter(Boolean).map(str => str.trim()), [
assert.deepEqual(text2.split('\n').map(str => str.trim()).filter(Boolean), [
'y: bar 1',
'z: baz 1',
'click me',
@@ -48,7 +48,7 @@ describe('layout', function() {
await wait(50);
const text3 = String(await page.evaluate(() => document.querySelector('#sapper').textContent));
assert.deepEqual(text3.split('\n').filter(Boolean).map(str => str.trim()), [
assert.deepEqual(text3.split('\n').map(str => str.trim()).filter(Boolean), [
'y: bar 1',
'z: qux 2',
'click me',

5
test/apps/preloading/src/routes/_layout.svelte
View File

@@ -8,13 +8,16 @@
<script>
import { preloading } from '@sapper/app';
import { setContext } from 'svelte';
export let child;
export let rootPreloadFunctionRan;
setContext('x', { rootPreloadFunctionRan });
</script>
{#if $preloading}
<progress class='preloading-progress' value=0.5/>
{/if}
<svelte:component this={child.component} {rootPreloadFunctionRan} {...child.props}/>
<slot></slot>

0
test/apps/preloading/src/routes/prefetch/[slug]/index.html → test/apps/preloading/src/routes/prefetch/[slug]/index.svelte
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1
test/apps/preloading/src/routes/prefetch/_layout.html
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@@ -1 +0,0 @@
<svelte:component this={child.component} {...child.props}/>

0
test/apps/preloading/src/routes/prefetch/index.html → test/apps/preloading/src/routes/prefetch/index.svelte
View File

1
test/apps/preloading/src/routes/preload-root/index.html
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@@ -1 +0,0 @@
<h1>root preload function ran: {rootPreloadFunctionRan}</h1>

6
test/apps/preloading/src/routes/preload-root/index.svelte Normal file
View File

@@ -0,0 +1,6 @@
<script>
import { getContext } from 'svelte';
const { rootPreloadFunctionRan } = getContext('x');
</script>
<h1>root preload function ran: {rootPreloadFunctionRan}</h1>

0
test/apps/preloading/src/routes/preload-values/custom-class.html → test/apps/preloading/src/routes/preload-values/custom-class.svelte
View File

1
test/apps/preloading/src/routes/preload-values/index.html
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@@ -1 +0,0 @@
<svelte:component this={child.component} {...child.props}/>

0
test/apps/preloading/src/routes/preload-values/set.html → test/apps/preloading/src/routes/preload-values/set.svelte
View File

0
test/apps/layout/src/routes/[slug].svelte → webpack/[slug].svelte
View File