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data-v-0d424459></span><span class="menu-text" data-v-0d424459>Menu</span></button><div class="VPLocalNavOutlineDropdown" style="--vp-vh:0px;" data-v-0d424459 data-v-9e866da0><button data-v-9e866da0>Return to top</button><!----></div></div></div><aside class="VPSidebar" data-v-52085faa data-v-b300e040><div class="curtain" data-v-b300e040></div><nav class="nav" id="VPSidebarNav" aria-labelledby="sidebar-aria-label" tabindex="-1" data-v-b300e040><span class="visually-hidden" id="sidebar-aria-label" data-v-b300e040> Sidebar Navigation </span><!--[--><!--]--><!--[--><div class="no-transition group" data-v-cd5b1edc><section class="VPSidebarItem level-0 has-active" data-v-cd5b1edc data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h2 class="text" data-v-edbe517d>编辑器</h2><!----></div><div class="items" data-v-edbe517d><!--[--><section class="VPSidebarItem level-1" data-v-edbe517d data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h3 class="text" data-v-edbe517d>Editor组件</h3><!----></div><div class="items" data-v-edbe517d><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/props.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>props</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/slots.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>slots</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/events.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>events</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-edbe517d data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h3 class="text" data-v-edbe517d>editorService</h3><!----></div><div class="items" data-v-edbe517d><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/editorServiceMethods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>方法</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/editorServiceEvents.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>事件</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-edbe517d data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h3 class="text" data-v-edbe517d>propsService</h3><!----></div><div class="items" data-v-edbe517d><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/propsServiceMethods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>方法</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/propsServiceEvents.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>事件</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1 has-active" data-v-edbe517d data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h3 class="text" data-v-edbe517d>historyService</h3><!----></div><div class="items" data-v-edbe517d><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/historyServiceMethods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>方法</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/historyServiceEvents.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>事件</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-1 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/eventsServiceMethods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>eventsService</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1" data-v-edbe517d data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h3 class="text" data-v-edbe517d>uiService</h3><!----></div><div class="items" data-v-edbe517d><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/uiServiceMethods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>方法</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/uiServiceEvents.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>事件</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-1 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/codeBlockServiceMethods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>codeBlockService</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/componentListServiceMethods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>componentListService</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/editor/storageServiceMethods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>storageService</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-cd5b1edc><section class="VPSidebarItem level-0" data-v-cd5b1edc data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h2 class="text" data-v-edbe517d>表单</h2><!----></div><div class="items" data-v-edbe517d><!--[--><section class="VPSidebarItem level-1" data-v-edbe517d data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h3 class="text" data-v-edbe517d>Form组件</h3><!----></div><div class="items" data-v-edbe517d><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/form/form-props.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>props</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/form/form-methods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>methods</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/form/form-events.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>events</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-edbe517d data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h3 class="text" data-v-edbe517d>FormDialog组件</h3><!----></div><div class="items" data-v-edbe517d><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/form/form-dialog-props.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>props</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/form/form-dialog-methods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>methods</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/form/form-dialog-events.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>events</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-1" data-v-edbe517d data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h3 class="text" data-v-edbe517d>工具函数</h3><!----></div><div class="items" data-v-edbe517d><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/form/submit-form.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>submitForm</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><div class="no-transition group" data-v-cd5b1edc><section class="VPSidebarItem level-0" data-v-cd5b1edc data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h2 class="text" data-v-edbe517d>表格</h2><!----></div><div class="items" data-v-edbe517d><!--[--><section class="VPSidebarItem level-1" data-v-edbe517d data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h3 class="text" data-v-edbe517d>Table组件</h3><!----></div><div class="items" data-v-edbe517d><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/table/props.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>props</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/table/methods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>methods</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/table/events.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>events</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><div class="no-transition group" data-v-cd5b1edc><section class="VPSidebarItem level-0" data-v-cd5b1edc data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h2 class="text" data-v-edbe517d>stage</h2><!----></div><div class="items" data-v-edbe517d><!--[--><section class="VPSidebarItem level-1" data-v-edbe517d data-v-edbe517d><div class="item" role="button" tabindex="0" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><h3 class="text" data-v-edbe517d>StageCore</h3><!----></div><div class="items" data-v-edbe517d><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/stage/coreMethods.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>方法</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edbe517d data-v-edbe517d><div class="item" data-v-edbe517d><div class="indicator" data-v-edbe517d></div><a class="VPLink link link" href="/tmagic-editor/docs/api/stage/coreEvents.html" data-v-edbe517d><!--[--><p class="text" data-v-edbe517d>事件</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-52085faa data-v-e4a435e4><div class="VPDoc has-sidebar has-aside" data-v-e4a435e4 data-v-e240b221><!--[--><!--]--><div class="container" data-v-e240b221><div class="aside" data-v-e240b221><div class="aside-curtain" data-v-e240b221></div><div class="aside-container" data-v-e240b221><div class="aside-content" data-v-e240b221><div class="VPDocAside" data-v-e240b221 data-v-29ae77ab><!--[--><!--]--><!--[--><!--]--><nav aria-labelledby="doc-outline-aria-label" class="VPDocAsideOutline" data-v-29ae77ab data-v-9a0a5036><div class="content" data-v-9a0a5036><div class="outline-marker" data-v-9a0a5036></div><div aria-level="2" class="outline-title" id="doc-outline-aria-label" role="heading" data-v-9a0a5036>On this page</div><ul class="VPDocOutlineItem root" data-v-9a0a5036 data-v-97ea2a1e><!--[--><!--]--></ul></div></nav><!--[--><!--]--><div class="spacer" data-v-29ae77ab></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-e240b221><div class="content-container" data-v-e240b221><!--[--><!--]--><main class="main" data-v-e240b221><div style="position:relative;" class="vp-doc _tmagic-editor_docs_api_editor_historyServiceMethods" data-v-e240b221><div><h1 id="historyservice方法" tabindex="-1">historyService方法 <a class="header-anchor" href="#historyservice方法" aria-label="Permalink to “historyService方法”">​</a></h1><h2 id="reset" tabindex="-1">reset <a class="header-anchor" href="#reset" aria-label="Permalink to “reset”">​</a></h2><ul><li><p><strong>详情：</strong></p><p>重置全部历史记录（包括页面节点栈、代码块栈、数据源栈），并重置当前页面 id / canRedo / canUndo</p></li></ul><h2 id="resetpage" tabindex="-1">resetPage <a class="header-anchor" href="#resetpage" aria-label="Permalink to “resetPage”">​</a></h2><ul><li><p><strong>详情：</strong></p><p>重置当前页面的历史记录状态（清空当前页面id，重置 canRedo/canUndo）</p></li></ul><h2 id="resetstate" tabindex="-1">resetState <a class="header-anchor" href="#resetstate" aria-label="Permalink to “resetState”">​</a></h2><ul><li><p><strong>详情：</strong></p><p>重置历史记录全部内部状态（清空 pageId、pageSteps、canRedo、canUndo、codeBlockState、dataSourceState）</p></li></ul><h2 id="changepage" tabindex="-1">changePage <a class="header-anchor" href="#changepage" aria-label="Permalink to “changePage”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{MPage | MPageFragment} page</code></li></ul><details class="details custom-block"><summary>查看 MPage / MPageFragment 类型定义</summary><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MPage</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> extends</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MContainer</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 页面类型 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> type</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> NodeType</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">PAGE</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MPageFragment</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> extends</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MContainer</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 页面类型 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> type</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> NodeType</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">PAGE_FRAGMENT</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div></details></li><li><p><strong>详情：</strong></p><p>按页面切换历史堆栈</p></li></ul><h2 id="push" tabindex="-1">push <a class="header-anchor" href="#push" aria-label="Permalink to “push”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{StepValue} state</code></li></ul><details class="details custom-block"><summary>查看 StepValue 及关联类型定义</summary><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> StepValue</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> extends</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> BaseStepValue</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">MNode</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&gt; {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 页面信息 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> data</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { </span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">name</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">; </span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">id</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> };</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 操作前选中的节点 ID，用于撤销后恢复选择状态 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> selectedBefore</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">[];</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 操作后选中的节点 ID，用于重做后恢复选择状态 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> selectedAfter</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">[];</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> modifiedNodeIds</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Map</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&gt;;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">/**</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 历史记录操作类型：</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `add` / `remove` / `update`：普通可撤销/重做的节点变更；</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `initial`：页面「未修改的初始状态」基线（设置 root 时生成），作为页面栈 index 0 的固定底线 step。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 该 step 不可被撤销/回滚（cursor 不会低于它），仅用于历史面板底部的初始行展示。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> */</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> type</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> HistoryOpType</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;add&#39;</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;remove&#39;</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;update&#39;</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;initial&#39;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">/**</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 历史记录的「操作途径」——标记本次变更由哪条交互入口触发，仅用于历史面板展示 / 业务埋点，</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 不影响 undo/redo 行为。缺省（未传）时 UI 视为「未知」。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> *</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `stage`：画布（拖拽 / 缩放 / 排序等舞台直接操作）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `tree`：树形面板（图层 / 数据源 / 代码块等树形结构里的拖拽 / 菜单操作）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `component-panel`：组件面板（左侧组件列表点击 / 拖拽新增组件）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `props`：配置面板表单（属性表单字段编辑）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `code`：源码编辑器（配置面板「源码」面板里直接编辑 JSON/代码后保存）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `stage-contextmenu`：画布右键菜单（舞台上节点的右键上下文菜单）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `tree-contextmenu`：树面板右键菜单（图层 / 数据源 / 代码块等树形列表上的右键上下文菜单）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `toolbar`：工具栏菜单（顶部导航工具栏按钮）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `shortcut`：键盘快捷键</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `rollback`：历史回滚（历史面板里对某条历史「回滚」，反向应用为一条新记录，类 git revert）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `api`：代码 / 接口调用（程序化触发）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `ai`：AI 生成 / 智能助手触发的变更</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `unknown`：未知来源</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> *</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 通过 `(string &amp; {})` 允许业务侧扩展自定义途径字符串，同时保留内置值的自动补全。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> */</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> type</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> HistoryOpSource</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;initial&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;stage&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;tree&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;component-panel&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;props&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;code&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;root-code&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;stage-contextmenu&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;tree-contextmenu&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;toolbar&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;shortcut&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;rollback&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;api&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;ai&#39;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 同步</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;sync&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;unknown&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">string</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> &amp;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {});</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> type</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Id</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> number</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> type</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MNode</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MComponent</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MContainer</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MIteratorContainer</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MPage</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MApp</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> MPageFragment</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> ChangeRecord</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> propPath</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> value</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> any</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div></details></li><li><p><strong>返回：</strong></p><ul><li><code>{StepValue | null}</code></li></ul></li><li><p><strong>详情：</strong></p><p>添加一条历史记录</p><div class="tip custom-block"><p class="custom-block-title custom-block-title-default">TIP</p><p><code>opType: &#39;update&#39;</code> 的每个 <code>updatedItems[i]</code> 上可携带 <code>changeRecords</code>，用于撤销 / 重做时仅按 <code>propPath</code> 局部更新对应字段，避免整节点替换冲掉同节点上的其它无关变更；不带 <code>changeRecords</code> 时退化为整节点替换（如 <code>sort</code> / <code>moveLayer</code> / 拖动等纯快照场景）。</p><p><code>StepValue</code> 上的 <code>historyDescription</code> / <code>source</code> 仅用于历史面板展示与埋点，不影响 undo/redo 行为。</p><p>入栈时会为每条记录自动生成唯一标识 <code>uuid</code>（调用方未指定时），可用于精确引用 / 定位某一条历史记录。 若需要在执行 DSL 操作后拿到本次写入记录的 <code>uuid</code>，可使用 editorService / dataSourceService / codeBlockService 提供的 <code>*AndGetHistoryId</code> 方法，参见 <a href="./editorServiceMethods.html#历史记录-uuid-与-andgethistoryid">editorService 历史记录 uuid 与 *AndGetHistoryId</a>。 <code>pushCodeBlock</code> / <code>pushDataSource</code> 同样会自动写入 <code>uuid</code>。</p></div></li></ul><h2 id="undo" tabindex="-1">undo <a class="header-anchor" href="#undo" aria-label="Permalink to “undo”">​</a></h2><ul><li><p><strong>返回：</strong></p><ul><li><code>{StepValue | null}</code></li></ul></li><li><p><strong>详情：</strong></p><p>撤销当前操作。<code>opType: &#39;update&#39;</code> 时，若 <code>updatedItems[i].changeRecords</code> 存在，会按 <code>propPath</code> 从 <code>oldNode</code> 取值做局部回滚；否则用 <code>oldNode</code> 整节点替换。</p></li></ul><h2 id="redo" tabindex="-1">redo <a class="header-anchor" href="#redo" aria-label="Permalink to “redo”">​</a></h2><ul><li><p><strong>返回：</strong></p><ul><li><code>{StepValue | null}</code></li></ul></li><li><p><strong>详情：</strong></p><p>恢复到下一步。<code>opType: &#39;update&#39;</code> 时，若 <code>updatedItems[i].changeRecords</code> 存在，会按 <code>propPath</code> 从 <code>newNode</code> 取值做局部重做；否则用 <code>newNode</code> 整节点替换。</p></li></ul><h2 id="pushcodeblock" tabindex="-1">pushCodeBlock <a class="header-anchor" href="#pushcodeblock" aria-label="Permalink to “pushCodeBlock”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} codeBlockId</code> 代码块 id</li><li><code>{Object} payload</code><ul><li><code>{CodeBlockContent | null} oldContent</code> 变更前的代码块内容；新增时为 <code>null</code></li><li><code>{CodeBlockContent | null} newContent</code> 变更后的代码块内容；删除时为 <code>null</code></li><li><code>{ChangeRecord[]} changeRecords</code> 可选；form 端 propPath/value 变更列表，撤销/重做时若有则按 propPath 局部更新；缺省（或空数组）才退化为整内容替换</li><li><code>{string}</code> historyDescription 可选；人类可读描述，用于历史面板展示；不影响 undo/redo 行为</li><li><code>{HistoryOpSource}</code> source 可选；操作途径，用于历史面板展示与埋点；不影响 undo/redo 行为</li></ul></li></ul><details class="details custom-block"><summary>查看 CodeBlockStepValue 及关联类型定义</summary><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">/**</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 代码块历史记录条目。按 codeBlock.id 分组保存到 historyState.codeBlockState。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 变更内容统一由 `diff`（单项）表达，每项见 </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">{</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">@link</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> StepDiffItem</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">}</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">：</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - 新增（opType &#39;add&#39;）：仅 `newSchema`（新内容）；</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - 更新（opType &#39;update&#39;）：`oldSchema` + `newSchema`，并可带 `changeRecords` 做局部更新；</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - 删除（opType &#39;remove&#39;）：仅 `oldSchema`（删除前内容）。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> */</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> CodeBlockStepValue</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> extends</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> BaseStepValue</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">CodeBlockContent</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&gt; {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 关联的代码块 id */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> id</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">/**</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 历史记录的「操作途径」——标记本次变更由哪条交互入口触发，仅用于历史面板展示 / 业务埋点，</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 不影响 undo/redo 行为。缺省（未传）时 UI 视为「未知」。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> *</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `stage`：画布（拖拽 / 缩放 / 排序等舞台直接操作）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `tree`：树形面板（图层 / 数据源 / 代码块等树形结构里的拖拽 / 菜单操作）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `component-panel`：组件面板（左侧组件列表点击 / 拖拽新增组件）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `props`：配置面板表单（属性表单字段编辑）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `code`：源码编辑器（配置面板「源码」面板里直接编辑 JSON/代码后保存）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `stage-contextmenu`：画布右键菜单（舞台上节点的右键上下文菜单）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `tree-contextmenu`：树面板右键菜单（图层 / 数据源 / 代码块等树形列表上的右键上下文菜单）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `toolbar`：工具栏菜单（顶部导航工具栏按钮）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `shortcut`：键盘快捷键</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `rollback`：历史回滚（历史面板里对某条历史「回滚」，反向应用为一条新记录，类 git revert）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `api`：代码 / 接口调用（程序化触发）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `ai`：AI 生成 / 智能助手触发的变更</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `unknown`：未知来源</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> *</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 通过 `(string &amp; {})` 允许业务侧扩展自定义途径字符串，同时保留内置值的自动补全。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> */</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> type</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> HistoryOpSource</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;initial&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;stage&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;tree&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;component-panel&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;props&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;code&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;root-code&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;stage-contextmenu&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;tree-contextmenu&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;toolbar&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;shortcut&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;rollback&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;api&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;ai&#39;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 同步</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;sync&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;unknown&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">string</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> &amp;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {});</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> CodeBlockContent</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 代码块名称 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> name</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 代码块内容 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> content</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> ((</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">...</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">args</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> any</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">[]) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=&gt;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> any</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">|</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Function</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 参数定义 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> params</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> CodeParam</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">[] </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">|</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> [];</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 注释 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> desc</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 扩展字段 */</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> [</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">propName</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">]</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> any</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> ChangeRecord</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> propPath</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> value</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> any</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div></details></li><li><p><strong>返回：</strong></p><ul><li><code>{CodeBlockStepValue | null}</code> 入栈失败（未传 id）时返回 <code>null</code></li></ul></li><li><p><strong>详情：</strong></p><p>推入一条代码块变更记录。与页面 / 节点完全无关，按 <code>codeBlockId</code> 维度独立一份 <code>UndoRedo</code> 栈， 栈实例存放在 <code>historyService.state.codeBlockState[codeBlockId]</code>。</p><p>入栈成功后会触发 <code>code-block-history-change</code> 事件。</p><div class="tip custom-block"><p class="custom-block-title custom-block-title-default">TIP</p><p><code>codeBlockService.setCodeDslByIdSync</code> 与 <code>codeBlockService.deleteCodeDslByIds</code> 内部已经 自动调用本方法，业务代码通常无需手动调用。</p></div></li></ul><h2 id="undocodeblock" tabindex="-1">undoCodeBlock <a class="header-anchor" href="#undocodeblock" aria-label="Permalink to “undoCodeBlock”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} codeBlockId</code></li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{CodeBlockStepValue | null}</code> 栈不存在或已无可撤销记录时返回 <code>null</code></li></ul></li><li><p><strong>详情：</strong></p><p>撤销指定代码块的最近一次变更。成功时会触发 <code>code-block-history-change</code> 事件。 拿到 step 后由调用方根据 <code>step.oldContent</code> 写回 <code>codeBlockService</code>（本方法不会自动回放）。</p></li></ul><h2 id="redocodeblock" tabindex="-1">redoCodeBlock <a class="header-anchor" href="#redocodeblock" aria-label="Permalink to “redoCodeBlock”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} codeBlockId</code></li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{CodeBlockStepValue | null}</code> 栈不存在或已无可重做记录时返回 <code>null</code></li></ul></li><li><p><strong>详情：</strong></p><p>重做指定代码块的下一次变更。成功时会触发 <code>code-block-history-change</code> 事件。</p></li></ul><h2 id="canundocodeblock" tabindex="-1">canUndoCodeBlock <a class="header-anchor" href="#canundocodeblock" aria-label="Permalink to “canUndoCodeBlock”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} codeBlockId</code></li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{boolean}</code></li></ul></li><li><p><strong>详情：</strong></p><p>指定代码块当前是否可撤销。栈不存在时返回 <code>false</code>。</p></li></ul><h2 id="canredocodeblock" tabindex="-1">canRedoCodeBlock <a class="header-anchor" href="#canredocodeblock" aria-label="Permalink to “canRedoCodeBlock”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} codeBlockId</code></li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{boolean}</code></li></ul></li><li><p><strong>详情：</strong></p><p>指定代码块当前是否可重做。栈不存在时返回 <code>false</code>。</p></li></ul><h2 id="pushdatasource" tabindex="-1">pushDataSource <a class="header-anchor" href="#pushdatasource" aria-label="Permalink to “pushDataSource”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} dataSourceId</code> 数据源 id</li><li><code>{Object} payload</code><ul><li><code>{DataSourceSchema | null} oldSchema</code> 变更前的数据源 schema；新增时为 <code>null</code></li><li><code>{DataSourceSchema | null} newSchema</code> 变更后的数据源 schema；删除时为 <code>null</code></li><li><code>{ChangeRecord[]} changeRecords</code> 可选；form 端 propPath/value 变更列表，撤销/重做时若有则按 propPath 局部更新；缺省（或空数组）才退化为整 schema 替换</li><li><code>{string}</code> historyDescription 可选；人类可读描述，用于历史面板展示；不影响 undo/redo 行为</li><li><code>{HistoryOpSource}</code> source 可选；操作途径，用于历史面板展示与埋点；不影响 undo/redo 行为</li></ul></li></ul><details class="details custom-block"><summary>查看 DataSourceStepValue 及关联类型定义</summary><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">/**</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 数据源历史记录条目。按 dataSource.id 分组保存到 historyState.dataSourceState。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 变更内容统一由 `diff`（单项）表达，每项见 </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">{</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">@link</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> StepDiffItem</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">}</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">：</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - 新增（opType &#39;add&#39;）：仅 `newSchema`（新 schema）；</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - 更新（opType &#39;update&#39;）：`oldSchema` + `newSchema`，并可带 `changeRecords` 做局部更新；</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - 删除（opType &#39;remove&#39;）：仅 `oldSchema`（删除前 schema）。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> */</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> DataSourceStepValue</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> extends</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> BaseStepValue</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">DataSourceSchema</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&gt; {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 关联的数据源 id */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> id</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">/**</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 历史记录的「操作途径」——标记本次变更由哪条交互入口触发，仅用于历史面板展示 / 业务埋点，</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 不影响 undo/redo 行为。缺省（未传）时 UI 视为「未知」。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> *</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `stage`：画布（拖拽 / 缩放 / 排序等舞台直接操作）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `tree`：树形面板（图层 / 数据源 / 代码块等树形结构里的拖拽 / 菜单操作）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `component-panel`：组件面板（左侧组件列表点击 / 拖拽新增组件）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `props`：配置面板表单（属性表单字段编辑）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `code`：源码编辑器（配置面板「源码」面板里直接编辑 JSON/代码后保存）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `stage-contextmenu`：画布右键菜单（舞台上节点的右键上下文菜单）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `tree-contextmenu`：树面板右键菜单（图层 / 数据源 / 代码块等树形列表上的右键上下文菜单）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `toolbar`：工具栏菜单（顶部导航工具栏按钮）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `shortcut`：键盘快捷键</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `rollback`：历史回滚（历史面板里对某条历史「回滚」，反向应用为一条新记录，类 git revert）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `api`：代码 / 接口调用（程序化触发）</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `ai`：AI 生成 / 智能助手触发的变更</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * - `unknown`：未知来源</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> *</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 通过 `(string &amp; {})` 允许业务侧扩展自定义途径字符串，同时保留内置值的自动补全。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> */</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> type</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> HistoryOpSource</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;initial&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;stage&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;tree&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;component-panel&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;props&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;code&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;root-code&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;stage-contextmenu&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;tree-contextmenu&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;toolbar&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;shortcut&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;rollback&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;api&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;ai&#39;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // 同步</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;sync&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &#39;unknown&#39;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> |</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">string</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> &amp;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {});</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> ChangeRecord</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> propPath</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> value</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> any</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div></details></li><li><p><strong>返回：</strong></p><ul><li><code>{DataSourceStepValue | null}</code> 入栈失败（未传 id）时返回 <code>null</code></li></ul></li><li><p><strong>详情：</strong></p><p>推入一条数据源变更记录。与页面 / 节点完全无关，按 <code>dataSourceId</code> 维度独立一份 <code>UndoRedo</code> 栈， 栈实例存放在 <code>historyService.state.dataSourceState[dataSourceId]</code>。</p><p>入栈成功后会触发 <code>data-source-history-change</code> 事件。</p><div class="tip custom-block"><p class="custom-block-title custom-block-title-default">TIP</p><p><code>dataSourceService.add</code> / <code>update</code> / <code>remove</code> 内部已经自动调用本方法，业务代码通常无需手动调用。</p></div></li></ul><h2 id="undodatasource" tabindex="-1">undoDataSource <a class="header-anchor" href="#undodatasource" aria-label="Permalink to “undoDataSource”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} dataSourceId</code></li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{DataSourceStepValue | null}</code></li></ul></li><li><p><strong>详情：</strong></p><p>撤销指定数据源的最近一次变更。成功时会触发 <code>data-source-history-change</code> 事件。 拿到 step 后由调用方根据 <code>step.oldSchema</code> 写回 <code>dataSourceService</code>（本方法不会自动回放）。</p></li></ul><h2 id="redodatasource" tabindex="-1">redoDataSource <a class="header-anchor" href="#redodatasource" aria-label="Permalink to “redoDataSource”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} dataSourceId</code></li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{DataSourceStepValue | null}</code></li></ul></li><li><p><strong>详情：</strong></p><p>重做指定数据源的下一次变更。成功时会触发 <code>data-source-history-change</code> 事件。</p></li></ul><h2 id="canundodatasource" tabindex="-1">canUndoDataSource <a class="header-anchor" href="#canundodatasource" aria-label="Permalink to “canUndoDataSource”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} dataSourceId</code></li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{boolean}</code></li></ul></li><li><p><strong>详情：</strong></p><p>指定数据源当前是否可撤销。栈不存在时返回 <code>false</code>。</p></li></ul><h2 id="canredodatasource" tabindex="-1">canRedoDataSource <a class="header-anchor" href="#canredodatasource" aria-label="Permalink to “canRedoDataSource”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} dataSourceId</code></li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{boolean}</code></li></ul></li><li><p><strong>详情：</strong></p><p>指定数据源当前是否可重做。栈不存在时返回 <code>false</code>。</p></li></ul><h2 id="marksaved" tabindex="-1">markSaved <a class="header-anchor" href="#marksaved" aria-label="Permalink to “markSaved”">​</a></h2><ul><li><p><strong>详情：</strong></p><p>标记「整份 DSL 已保存」：把页面 / 代码块 / 数据源所有栈当前游标所在的记录都标记为已保存（<code>saved = true</code>）。</p><p>同一栈内任意时刻最多保留一条已保存记录（标记前会清除该栈内全部旧标记）；某个栈处于「全部已撤销」（cursor 为 0）时不会留下已保存记录，从 IndexedDB 恢复时其游标会回到 0。</p><p>通常在 DSL 整体落库（保存到后端 / 本地）成功后调用，配合 <a href="#restorefromindexeddb"><code>restoreFromIndexedDB</code></a> 把游标恢复到此处。仅保存了其中一类时请改用更细粒度的 <code>markPageSaved</code> / <code>markCodeBlockSaved</code> / <code>markDataSourceSaved</code>。</p><p>调用后会触发 <code>mark-saved</code> 事件（<code>{ kind: &#39;all&#39; }</code>）。</p></li></ul><h2 id="markpagesaved" tabindex="-1">markPageSaved <a class="header-anchor" href="#markpagesaved" aria-label="Permalink to “markPageSaved”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} pageId</code> 可选；缺省为当前活动页</li></ul></li><li><p><strong>详情：</strong></p><p>标记指定页面（缺省当前活动页）历史栈的当前记录为已保存，仅影响该页面自己的栈。触发 <code>mark-saved</code> 事件（<code>{ kind: &#39;page&#39;, id }</code>）。</p></li></ul><h2 id="markcodeblocksaved" tabindex="-1">markCodeBlockSaved <a class="header-anchor" href="#markcodeblocksaved" aria-label="Permalink to “markCodeBlockSaved”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} codeBlockId</code></li></ul></li><li><p><strong>详情：</strong></p><p>标记指定代码块历史栈的当前记录为已保存，仅影响该代码块自己的栈。触发 <code>mark-saved</code> 事件（<code>{ kind: &#39;code-block&#39;, id }</code>）。</p></li></ul><h2 id="markdatasourcesaved" tabindex="-1">markDataSourceSaved <a class="header-anchor" href="#markdatasourcesaved" aria-label="Permalink to “markDataSourceSaved”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} dataSourceId</code></li></ul></li><li><p><strong>详情：</strong></p><p>标记指定数据源历史栈的当前记录为已保存，仅影响该数据源自己的栈。触发 <code>mark-saved</code> 事件（<code>{ kind: &#39;data-source&#39;, id }</code>）。</p></li></ul><h2 id="clearpage" tabindex="-1">clearPage <a class="header-anchor" href="#clearpage" aria-label="Permalink to “clearPage”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} pageId</code> 可选；缺省为当前活动页</li></ul></li><li><p><strong>详情：</strong></p><p>清空指定页面（缺省当前活动页）的历史记录栈。仅删除撤销/重做记录，不会改动当前 DSL；清空后该页将无法再撤销/重做之前的操作。清空当前活动页时会同步刷新 <code>canUndo</code> / <code>canRedo</code> 并触发 <code>change</code> 事件。</p></li></ul><h2 id="clearcodeblock" tabindex="-1">clearCodeBlock <a class="header-anchor" href="#clearcodeblock" aria-label="Permalink to “clearCodeBlock”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} codeBlockId</code> 可选；缺省清空全部代码块</li></ul></li><li><p><strong>详情：</strong></p><p>清空代码块历史记录栈：传入 <code>codeBlockId</code> 仅清空该代码块，缺省清空全部代码块。仅删除撤销/重做记录，不会改动代码块本身。</p></li></ul><h2 id="cleardatasource" tabindex="-1">clearDataSource <a class="header-anchor" href="#cleardatasource" aria-label="Permalink to “clearDataSource”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{Id} dataSourceId</code> 可选；缺省清空全部数据源</li></ul></li><li><p><strong>详情：</strong></p><p>清空数据源历史记录栈：传入 <code>dataSourceId</code> 仅清空该数据源，缺省清空全部数据源。仅删除撤销/重做记录，不会改动数据源本身。</p></li></ul><h2 id="savetoindexeddb" tabindex="-1">saveToIndexedDB <a class="header-anchor" href="#savetoindexeddb" aria-label="Permalink to “saveToIndexedDB”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{HistoryPersistOptions} options</code> 可选</li></ul><details class="details custom-block"><summary>查看 HistoryPersistOptions / PersistedHistoryState 类型定义</summary><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">/** historyService 持久化相关 API 的可选配置。 */</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> HistoryPersistOptions</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** IndexedDB 数据库名，默认 `tmagic-editor`（最终库名会拼上当前 DSL app id）。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> dbName</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** objectStore 名，默认 `history`。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> storeName</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 记录 key，用于区分不同活动页 / 项目，默认 `default`。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> key</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> IDBValidKey</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /**</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 显式指定用于库名隔离的 DSL app id。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 缺省时回退到当前 editorService 的 `root.id`；在「先恢复历史再 set root」场景下 root 尚未设置，</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 需由调用方（如从待加载 DSL 取 id）显式传入，否则会读 / 写到未按 app 隔离的默认库。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> appId</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">/**</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 历史记录的可持久化快照。由 historyService.saveToIndexedDB 写入 IndexedDB，</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * 再由 historyService.restoreFromIndexedDB 读出并重建各 UndoRedo 栈。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> */</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> PersistedHistoryState</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 快照结构版本号，便于后续兼容升级。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> version</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> number</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 保存时的活动页 id。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> pageId</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">?:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 各页面历史栈的序列化快照，按 pageId 分组。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> pageSteps</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Record</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">SerializedUndoRedo</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">StepValue</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&gt;&gt;;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 各代码块历史栈的序列化快照，按 codeBlockId 分组。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> codeBlockState</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Record</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">SerializedUndoRedo</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">CodeBlockStepValue</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&gt;&gt;;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 各数据源历史栈的序列化快照，按 dataSourceId 分组。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> dataSourceState</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> Record</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">Id</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">SerializedUndoRedo</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">DataSourceStepValue</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&gt;&gt;;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 保存时间戳（毫秒）。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> savedAt</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> number</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><div class="language-ts"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark" style="--shiki-light:#24292e;--shiki-dark:#e1e4e8;--shiki-light-bg:#fff;--shiki-dark-bg:#24292e;" tabindex="0" dir="ltr"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">/**</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> * UndoRedo 栈的可序列化快照，用于持久化（如写入 IndexedDB）后再还原。</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> */</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">export</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> interface</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> SerializedUndoRedo</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&lt;</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">T</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> any</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">&gt; {</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 栈内全部元素（按时间正序，索引 0 为最早一步）。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> elementList</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> T</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">[];</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 游标位置（已应用步骤数量）。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> listCursor</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> number</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /** 栈容量上限。 */</span></span>
<span class="line"><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> listMaxSize</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> number</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div></details></li><li><p><strong>返回：</strong></p><ul><li><code>{Promise&lt;PersistedHistoryState&gt;}</code> 写入成功的快照对象</li></ul></li><li><p><strong>详情：</strong></p><p>把当前内存中的全部历史栈（页面 / 代码块 / 数据源）连同各自游标、容量序列化后写入本地 IndexedDB。</p><ul><li>最终库名为 <code>${dbName}-${当前 DSL app id}</code>，按应用隔离；</li><li><code>key</code> 用于在同一 store 下区分不同记录，缺省为 <code>default</code>；</li><li>历史记录里可能包含函数（代码块内容 / 节点事件等），内部使用 <code>serialize-javascript</code> 序列化为字符串后写入，恢复时再用 <code>parseDSL</code> 还原，因此可安全持久化函数 / <code>Map</code> 等；</li><li>不支持 IndexedDB 的环境（如 SSR）会 reject。</li></ul><p>写入成功后触发 <code>save-to-indexed-db</code> 事件。</p><div class="warning custom-block"><p class="custom-block-title custom-block-title-default">WARNING</p><p><code>beforeunload</code> / <code>pagehide</code> 阶段浏览器不会等待异步 IndexedDB 事务提交，单纯依赖卸载时写入可能丢失最近一次编辑。建议在历史变更时（防抖）即调用本方法持久化，确保刷新后能完整恢复。</p></div></li></ul><h2 id="restorefromindexeddb" tabindex="-1">restoreFromIndexedDB <a class="header-anchor" href="#restorefromindexeddb" aria-label="Permalink to “restoreFromIndexedDB”">​</a></h2><ul><li><p><strong>参数：</strong></p><ul><li><code>{HistoryPersistOptions} options</code> 可选</li></ul></li><li><p><strong>返回：</strong></p><ul><li><code>{Promise&lt;PersistedHistoryState | null&gt;}</code> 找不到记录时返回 <code>null</code></li></ul></li><li><p><strong>详情：</strong></p><p>从本地 IndexedDB 读取此前保存的历史快照并重建全部撤销/重做栈。</p><ul><li>每个栈都会按 <code>listMaxSize</code> 裁剪并还原游标；</li><li>若某个栈存在已保存记录（见 <code>markSaved</code>），其游标会被定位到「最近一条已保存记录」之后，使恢复后的状态与落库的 DSL 对齐；</li><li>会整体覆盖当前内存中的历史状态，并把活动页恢复为快照中的 <code>pageId</code>；</li><li>找不到对应记录时返回 <code>null</code> 且不改动当前状态；不支持 IndexedDB 的环境会 reject。</li></ul><p>成功后触发 <code>restore-from-indexed-db</code> 与 <code>change</code> 事件。</p></li></ul><h2 id="destroy" tabindex="-1">destroy <a class="header-anchor" href="#destroy" aria-label="Permalink to “destroy”">​</a></h2><ul><li><p><strong>详情：</strong></p><p>销毁</p></li></ul></div></div></main><footer class="VPDocFooter" data-v-e240b221 data-v-5ee03efa><!--[--><!--]--><!----><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-5ee03efa><span class="visually-hidden" id="doc-footer-aria-label" data-v-5ee03efa>Pager</span><div class="pager" data-v-5ee03efa><a class="VPLink link pager-link prev" href="/tmagic-editor/docs/api/editor/propsServiceEvents.html" data-v-5ee03efa><!--[--><span class="desc" data-v-5ee03efa>Previous page</span><span class="title" data-v-5ee03efa>事件</span><!--]--></a></div><div class="pager" data-v-5ee03efa><a class="VPLink link pager-link next" href="/tmagic-editor/docs/api/editor/historyServiceEvents.html" data-v-5ee03efa><!--[--><span class="desc" data-v-5ee03efa>Next page</span><span class="title" data-v-5ee03efa>事件</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-52085faa data-v-b8960fa3><div class="container" data-v-b8960fa3><p class="message" data-v-b8960fa3>Powered by 腾讯视频会员平台技术中心</p><p class="copyright" data-v-b8960fa3>Copyright (C) 2025 Tencent.</p></div></footer><!--[--><!--]--></div></div>
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