组件化拆分: TreeCanvas(2D画布) + WorkspaceArea(任务列表+锁定工作区) + detail瘦身(仅弹窗)
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track-uniapp/src/pages/scan/components/TreeCanvas.vue
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101
track-uniapp/src/pages/scan/components/TreeCanvas.vue
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<template>
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<view class="tree-area">
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<view v-if="!product.task_tree || !product.task_tree.length" class="zero-task">
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<text class="zero-icon">📋</text>
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<text class="zero-text">该产品暂无流转任务</text>
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</view>
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<template v-else>
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<view class="canvas-hint">🖐 2D 蓝图画布：支持随意拖拽探索分支走向</view>
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<movable-area class="tree-movable-area">
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<movable-view class="tree-movable-view" direction="all" :x="0" :y="0"
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:scale="true" :scale-min="0.5" :scale-max="2"
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:style="{ width: Math.max(canvasWidth, 1200) + 'px', height: Math.max(canvasHeight, 1200) + 'px' }">
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<view class="canvas-inner">
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<view v-for="line in treeLines" :key="line.key" class="canvas-line" :style="lineStyle(line)"></view>
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<view v-for="node in treeNodes" :key="node.id" class="canvas-node" :class="statusColor(node.status)"
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:style="{ left: node.x + 'px', top: node.y + 'px' }"
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@tap="node.records && node.records.length && $emit('viewRecords', node)">
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<view class="cn-header">
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<text class="cn-name">{{ node.task_name }}</text>
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<text :class="['cn-badge', statusColor(node.status)]">{{ statusLabel(node.status) }}</text>
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</view>
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<text class="cn-assignee">负责人: {{ node.assignee_id || '—' }}</text>
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<text v-if="getTaskRemark(node)" class="cn-remark">📌 {{ getTaskRemark(node) }}</text>
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<view class="cn-footer">
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<text v-if="node.status==='COMPLETED' && (!node.child_tasks || !node.child_tasks.length)" class="cn-end">🏁 终止</text>
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<text v-if="node.status==='ARCHIVED'" class="cn-end cn-end-wh">📦 入库</text>
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<text v-if="node.records && node.records.length" class="cn-records">📋 {{ node.records.length }}记录 ›</text>
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</view>
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</view>
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</view>
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</movable-view>
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</movable-area>
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</template>
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</view>
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</template>
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<script>
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const STATUS_MAP = { PENDING: "待接收", WIP: "进行中", COMPLETED: "已完成", REJECTED: "已驳回", ARCHIVED: "已入库" };
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export default {
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name: "TreeCanvas",
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props: { product: { type: Object, default: null } },
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emits: ["viewRecords"],
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computed: {
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treeNodes() {
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const nodes = []; const CARD_W = 200, CARD_H = 140, GAP_X = 60, GAP_Y = 60;
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const layout = (tasks, depth, startX) => {
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if (!tasks || !tasks.length) return startX;
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const y = 20 + depth * (CARD_H + GAP_Y); let x = startX; const childXs = [];
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for (const t of tasks) {
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nodes.push({ ...t, x, y }); const childStartX = x;
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if (t.child_tasks && t.child_tasks.length) { x = layout(t.child_tasks, depth + 1, x); } else { x += CARD_W + GAP_X; }
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childXs.push({ id: t.id, cx: childStartX + CARD_W / 2, cy: y + CARD_H, children: t.child_tasks || [] });
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}
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nodes._lines = nodes._lines || [];
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for (const cx of childXs) { if (cx.children.length) { const midX = cx.cx; for (const c of cx.children) { const childNode = nodes.find(n => n.id === c.id); if (childNode) { nodes._lines.push({ key: cx.id + '-' + c.id, x1: midX, y1: cx.cy, x2: childNode.x + CARD_W / 2, y2: childNode.y }); } } } }
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return x;
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};
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if (this.product && this.product.task_tree) { nodes._lines = []; layout(this.product.task_tree, 0, 40); }
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return nodes;
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},
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treeLines() { return this.treeNodes._lines || []; },
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canvasWidth() { const nodes = this.treeNodes; if (!nodes.length) return 400; return Math.max(400, Math.max(...nodes.map(n => n.x)) + 300); },
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canvasHeight() { const nodes = this.treeNodes; if (!nodes.length) return 400; return Math.max(400, Math.max(...nodes.map(n => n.y)) + 300); },
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},
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methods: {
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statusLabel(s) { return STATUS_MAP[s] || s; },
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statusColor(s) { switch (s) { case "PENDING": return "s-yellow"; case "WIP": return "s-blue"; case "COMPLETED": return "s-green"; case "REJECTED": return "s-red"; default: return "s-gray"; } },
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getTaskRemark(t) { if (!t) return ""; if (t.remark) return t.remark; if (t.records && t.records.length > 0) { const recs = [...t.records].reverse(); const rec = recs.find(r => r.remark && r.remark.length > 0); if (rec) return rec.remark; } return ""; },
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lineStyle(line) { const dx = line.x2 - line.x1; const dy = line.y2 - line.y1; const len = Math.sqrt(dx * dx + dy * dy); const angle = Math.atan2(dy, dx) * 180 / Math.PI; return { left: line.x1 + 'px', top: line.y1 + 'px', width: len + 'px', transform: `rotate(${angle}deg)`, transformOrigin: '0 0' }; },
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},
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};
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</script>
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<style scoped>
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.tree-area { flex: 1; display: flex; flex-direction: column; overflow: hidden; margin-top: 4px; }
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.canvas-hint { font-size: 11px; color: #9ca3af; text-align: center; padding: 4px 0; flex-shrink: 0; }
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.tree-movable-area { flex: 1; width: 100%; background-color: #ebedf0; border-radius: 12px; overflow: hidden; box-shadow: inset 0 0 20px rgba(0,0,0,0.05); }
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.canvas-inner { position: absolute; left: 0; top: 0; }
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.canvas-node { position: absolute; width: 180px; min-height: 100px; background: #ffffff; border-radius: 12px; padding: 14px; box-shadow: 0 4px 15px rgba(0,0,0,0.08); border-left: 6px solid #3b82f6; border-top: none; z-index: 10; display: flex; flex-direction: column; gap: 6px; }
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.canvas-node.s-yellow { border-left-color: #f59e0b; }
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.canvas-node.s-blue { border-left-color: #3b82f6; }
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.canvas-node.s-green { border-left-color: #22c55e; }
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.canvas-node.s-red { border-left-color: #ef4444; }
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.cn-header { display: flex; align-items: center; justify-content: space-between; }
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.cn-name { font-size: 14px; font-weight: 800; color: #1f2937; }
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.cn-badge { font-size: 10px; padding: 2px 6px; border-radius: 8px; font-weight: 600; }
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.cn-badge.s-yellow { background: #fef3c7; color: #b45309; }
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.cn-badge.s-blue { background: #dbeafe; color: #1d4ed8; }
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.cn-badge.s-green { background: #dcfce7; color: #15803d; }
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.cn-assignee { font-size: 11px; color: #6b7280; }
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.cn-remark { font-size: 11px; color: #a16207; background: #fefce8; padding: 4px 8px; border-radius: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
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.cn-footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 6px; border-top: 1px solid #f3f4f6; }
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.cn-end { font-size: 10px; font-weight: 600; color: #16a34a; }
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.cn-end-wh { color: #7c3aed; }
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.cn-records { font-size: 11px; color: #2563eb; font-weight: 600; }
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.canvas-line { position: absolute; height: 3px; background: #94a3b8; z-index: 1; border-radius: 2px; box-shadow: 0 1px 2px rgba(0,0,0,0.1); }
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.zero-task { display: flex; flex-direction: column; align-items: center; padding: 24px 0; }
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.zero-icon { font-size: 40px; margin-bottom: 8px; }
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.zero-text { font-size: 14px; color: #9ca3af; }
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</style>
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