From 771c78ac70b262c66bc4ab97e9a5a7b4708bcded Mon Sep 17 00:00:00 2001
From: yutent <yutent.io@gmail.com>
Date: Wed, 19 Apr 2023 16:03:06 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AE=8C=E6=88=90=E6=97=B6=E9=97=B4=E7=BA=BF?=
 =?UTF-8?q?=E7=BB=84=E4=BB=B6=E7=9A=84=E5=BC=80=E5=8F=91?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Readme.md             |   4 +-
 src/card/index.js     |   2 +-
 src/timeline/index.js | 147 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 150 insertions(+), 3 deletions(-)
 create mode 100644 src/timeline/index.js

diff --git a/Readme.md b/Readme.md
index 47e6795..5511ccf 100644
--- a/Readme.md
+++ b/Readme.md
@@ -13,7 +13,7 @@
 
 - @bd/core 针对`web components`的核心封装库, 以数据驱动, 可以更方便的开发 wc 组件
 
-### 开发进度 && 计划 (30/54)
+### 开发进度 && 计划 (31/54)
 
 - [x] `wc-card` 卡片组件
 - [x] `wc-space` 间隔组件
@@ -59,7 +59,7 @@
 - [ ] `wc-loading` 加载组件
 - [x] `wc-tabs` 选项卡组件
 - [x] `wc-steps` 步骤条组件
-- [ ] `wc-timeline` 时间线组件
+- [x] `wc-timeline` 时间线组件
 - [ ] `wc-layout` 布局组件
 - [ ] `wc-tag` 标签组件
 - [ ] `wc-tooltip` 文字提示组件
diff --git a/src/card/index.js b/src/card/index.js
index 67afc03..725057f 100644
--- a/src/card/index.js
+++ b/src/card/index.js
@@ -61,7 +61,7 @@ class Card extends Component {
   render() {
     return html`
       <div class="card-box">
-        <div class="header"><slot>${this.header}</slot></div>
+        <div class="header"><slot name="header">${this.header}</slot></div>
         <div class="content"><slot></slot></div>
       </div>
     `
diff --git a/src/timeline/index.js b/src/timeline/index.js
new file mode 100644
index 0000000..75c1de7
--- /dev/null
+++ b/src/timeline/index.js
@@ -0,0 +1,147 @@
+/**
+ * {}
+ * @author yutent<yutent.io@gmail.com>
+ * @date 2023/04/18 09:38:01
+ */
+
+import { css, html, Component, bind, styleMap, classMap } from '@bd/core'
+import '../icon/index.js'
+
+function pad(n) {
+  return n < 10 ? '0' + n : n
+}
+
+function getTimeStamp(t) {
+  let y = t.getFullYear()
+  let m = pad(t.getMonth() + 1)
+  let d = pad(t.getDate())
+  let h = pad(t.getHours())
+  let i = pad(t.getMinutes())
+  return `${y}/${m}/${d} ${h}:${i}`
+}
+
+const DEFAULT_TIME = getTimeStamp(new Date())
+
+class Timeline extends Component {
+  static styles = [
+    css`
+      :host {
+        display: flex;
+        flex-direction: column;
+        justify-content: space-between;
+      }
+    `
+  ]
+  created() {
+    bind(this.root, 'slotchange', ev => {
+      let children = ev.target.assignedNodes()
+
+      children.forEach((it, i) => {
+        it.removeAttribute('last')
+      })
+
+      children.at(-1).setAttribute('last', '')
+    })
+  }
+}
+
+class Item extends Component {
+  static props = {
+    time: {
+      type: String,
+      default: DEFAULT_TIME,
+      observer(v) {
+        if (isFinite(v)) {
+          this.time = getTimeStamp(new Date(+v))
+        }
+      }
+    },
+    content: '',
+    icon: { type: String, default: null },
+    color: ''
+  }
+
+  static styles = css`
+    :host {
+      flex: 1;
+      display: flex;
+      font-size: 14px;
+    }
+    .container {
+      display: flex;
+      width: 100%;
+      margin-bottom: 32px;
+      color: var(--color-dark-1);
+    }
+
+    .header {
+      position: relative;
+      display: flex;
+      justify-content: center;
+      width: 26px;
+      height: 100%;
+      min-height: 64px;
+      user-select: none;
+
+      &::after {
+        position: absolute;
+        left: 12px;
+        top: 20px;
+        width: 2px;
+        height: calc(100% + 12px); // -20 + 32
+        background: var(--color-grey-1);
+        content: '';
+      }
+    }
+    :host([last]) {
+      .header:after {
+        display: none;
+      }
+    }
+
+    .dot {
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+      width: 20px;
+      height: 20px;
+      border-radius: 50%;
+      background: var(--color-grey-1);
+      color: #fff;
+      --size: 14px;
+    }
+    .group {
+      flex: 1;
+      display: flex;
+      flex-direction: column;
+      margin-left: 12px;
+    }
+    .time {
+      margin-bottom: 4px;
+      line-height: 1.5;
+      font-size: 12px;
+      color: var(--color-grey-3);
+      user-select: none;
+      font-family: Raleway, Arial, Helvetica, sans-serif;
+    }
+  `
+
+  render() {
+    return html`
+      <label class="container" status=${this.status}>
+        <header class="header">
+          <span class="dot" style=${styleMap({ backgroundColor: this.color })}>
+            <wc-icon name=${this.icon || 'time'}></wc-icon>
+          </span>
+        </header>
+        <div class="group">
+          <span class="time">${this.time}</span>
+          <slot class="content">${this.content}</slot>
+        </div>
+      </label>
+    `
+  }
+}
+
+Timeline.reg('timeline')
+Item.reg('timeline-item')