# 缩略图加载错误
# 在加载 "缩略图" addon之前，此组件不可用
随着版本 7.3.0 的发布，缩略图组件被模块化为addon。因此，在将过去的版本迁移到此版本或更高版本之前，应根据实际需要配置缩略图组件。在初始化阶段，如果没有对缩略图组件进行适当修改，则直接迁移将导致浏览器控制台上出现错误。要查看错误的详细信息，请打开浏览器 DevTools，然后单击以下demo的右上侧的 Run。
注意：以下demo不在旧版浏览器上运行。
<html>
<template id="layout-template">
<webpdf>
<toolbar name="toolbar">
<div style="display: flex; flex-direction: row; padding: 6px;">
<open-file-dropdown></open-file-dropdown>
<download-file-button></download-file-button>
</div>
</toolbar>
<div class="fv__ui-body">
<sidebar>
<commentlist-sidebar-panel></commentlist-sidebar-panel>
<thumbnail-sidebar-panel></thumbnail-sidebar-panel>
</sidebar>
<viewer @zoom-on-pinch @zoom-on-doubletap @zoom-on-wheel @touch-to-scroll></viewer>
</div>
<template name="template-container">
<fpmodule:file-property-dialog></fpmodule:file-property-dialog>
<!-- contextmenus
<page-contextmenu></page-contextmenu>
<default-annot-contextmenu></default-annot-contextmenu>
<markup-contextmenu></markup-contextmenu>
-->
</template>
</webpdf>
</template>
<script>
var CustomAppearance = PDFViewCtrl.shared.createClass({
getLayoutTemplate: function() {
var template = document.getElementById('layout-template');
return template.innerHTML;
},
beforeMounted: function(rootComponent) {
this.rootComponent = rootComponent;
this.toolbarComponent = rootComponent.getComponentByName('toolbar');
},
disableAll: function() {
this.toolbarComponent.disable();
},
enableAll: function() {
this.toolbarComponent.enable();
}
}, UIExtension.appearances.Appearance);
var libPath = window.top.location.origin + '/lib';
var pdfui = new UIExtension.PDFUI({
viewerOptions: {
libPath: libPath,
jr: {
licenseSN: licenseSN,
licenseKey: licenseKey
},
},
renderTo: document.body,
appearance: CustomAppearance,
addons: [
libPath + '/uix-addons/file-property',
]
});
</script>
</html>
{
"iframeOptions": {
"style": "height: 500px"
}
}
# 解决方案
# 引用缩略图addon
如果您需要缩略图功能，则需要在初始化PDFUI时引用 /uix-addons/thumbnail。以下是示例代码：
<html>
<template id="layout-template">
<webpdf>
<toolbar name="toolbar">
<div style="display: flex; flex-direction: row; padding: 6px;">
<open-file-dropdown></open-file-dropdown>
<download-file-button></download-file-button>
</div>
</toolbar>
<div class="fv__ui-body">
<sidebar>
<commentlist-sidebar-panel></commentlist-sidebar-panel>
<thumbnail-sidebar-panel></thumbnail-sidebar-panel>
</sidebar>
<viewer @zoom-on-pinch @zoom-on-doubletap @zoom-on-wheel @touch-to-scroll></viewer>
</div>
<template name="template-container">
<fpmodule:file-property-dialog></fpmodule:file-property-dialog>
<!-- contextmenus -->
<page-contextmenu></page-contextmenu>
<default-annot-contextmenu></default-annot-contextmenu>
<markup-contextmenu></markup-contextmenu>
</template>
</webpdf>
</template>
<script>
var CustomAppearance = PDFViewCtrl.shared.createClass({
getLayoutTemplate: function() {
var template = document.getElementById('layout-template');
return template.innerHTML;
},
beforeMounted: function(rootComponent) {
this.rootComponent = rootComponent;
this.toolbarComponent = rootComponent.getComponentByName('toolbar');
},
disableAll: function() {
this.toolbarComponent.disable();
},
enableAll: function() {
this.toolbarComponent.enable();
}
}, UIExtension.appearances.Appearance);
var libPath = window.top.location.origin + '/lib';
var pdfui = new UIExtension.PDFUI({
viewerOptions: {
libPath: libPath,
jr: {
licenseSN: licenseSN,
licenseKey: licenseKey
},
},
renderTo: document.body,
appearance: CustomAppearance,
addons: [
libPath + '/uix-addons/file-property',
libPath + '/uix-addons/thumbnail'
]
});
</script>
</html>
{
"iframeOptions": {
"style": "height: 500px"
}
}
# 在layout-template中删除 <thumbnail-sidebar-panel> 标签
如果您不需要缩略图功能，则需要删除 <thumbnail-sidebar-panel> 标签以避免错误。以下是示例代码：
<html>
<template id="layout-template">
<webpdf>
<toolbar name="toolbar">
<div style="display: flex; flex-direction: row; padding: 6px;">
<open-file-dropdown></open-file-dropdown>
<download-file-button></download-file-button>
</div>
</toolbar>
<div class="fv__ui-body">
<sidebar>
<commentlist-sidebar-panel></commentlist-sidebar-panel>
<!-- <thumbnail-sidebar-panel></thumbnail-sidebar-panel> -->
</sidebar>
<viewer @zoom-on-pinch @zoom-on-doubletap @zoom-on-wheel @touch-to-scroll></viewer>
</div>
<template name="template-container">
<fpmodule:file-property-dialog></fpmodule:file-property-dialog>
<!-- contextmenus -->
<page-contextmenu></page-contextmenu>
<default-annot-contextmenu></default-annot-contextmenu>
<markup-contextmenu></markup-contextmenu>
</template>
</webpdf>
</template>
<script>
var CustomAppearance = PDFViewCtrl.shared.createClass({
getLayoutTemplate: function() {
var template = document.getElementById('layout-template');
return template.innerHTML;
},
beforeMounted: function(rootComponent) {
this.rootComponent = rootComponent;
this.toolbarComponent = rootComponent.getComponentByName('toolbar');
},
disableAll: function() {
this.toolbarComponent.disable();
},
enableAll: function() {
this.toolbarComponent.enable();
}
}, UIExtension.appearances.Appearance);
var libPath = window.top.location.origin + '/lib';
var pdfui = new UIExtension.PDFUI({
viewerOptions: {
libPath: libPath,
jr: {
licenseSN: licenseSN,
licenseKey: licenseKey
},
},
renderTo: document.body,
appearance: CustomAppearance,
addons: [
libPath + '/uix-addons/file-property',
]
});
</script>
</html>
{
"iframeOptions": {
"style": "height: 500px"
}
}
← 最佳实践