mirror of
https://ark.sudovanilla.org/Korbs/electron-tabs.git
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335 lines
9.2 KiB
Markdown
335 lines
9.2 KiB
Markdown
# electron-tabs
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> Simple tabs for Electron applications
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## Features
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* :electron: Compatible with Electron ≥ 17.
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* :lock: Compliant with [Electron security recommendations](https://www.electronjs.org/docs/latest/tutorial/security) (works without `nodeIntegration: true`).
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* :toolbox: Written with TypeScript and Web Components.
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* :hand: Supports drag and drop out of the box.
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* :art: Easily customizable.
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## Installation
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```bash
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npm install --save electron-tabs
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```
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## Getting started
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Define the following `webPreferences` options in the main process:
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```js
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const mainWindow = new electron.BrowserWindow({
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webPreferences: {
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webviewTag: true
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}
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});
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```
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Then add the following markup where you want the tabs to display:
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```html
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<tab-group></tab-group>
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<script src="node_modules/electron-tabs/dist/electron-tabs.js"></script>
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```
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## Options
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You can add options by setting `<tab-group>` element attributes:
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```html
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<tab-group new-tab-button="true" sortable="true"></tab-group>
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```
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The following attributes are supported:
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* `close-button-text` (string): text of the tabs "Close" button.
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* `new-tab-button` (boolean): set it to true to display the "New Tab" button.
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* `new-tab-button-text` (string): text of the "New Tab" button.
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* `sortable` (boolean): set it to true to make the tabs sortable by drag and drop.
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* `visibility-threshold` (number): the minimum number of tabs necessary for the tab bar to be displayed. 0 (default) means that it will always remain visible.
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## Methods
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Use `TabGroup` methods and manipulate tabs in a script after calling `electron-tabs.js`.
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```html
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<tab-group new-tab-button="true"></tab-group>
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<script src="path/to/electron-tabs.js"></script>
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<script>
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// Select tab-group
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const tabGroup = document.querySelector("tab-group");
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// Setup the default tab which is created when the "New Tab" button is clicked
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tabGroup.setDefaultTab({
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title: "New Page",
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src: "path/to/new-page.html",
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active: true
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});
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// Do stuff
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const tab = tabGroup.addTab({
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title: "electron-tabs on NPM",
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src: "https://www.npmjs.com/package/electron-tabs"
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});
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const pos = tab.getPosition();
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console.log("Tab position is " + pos);
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</script>
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```
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### TabGroup
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#### `tabGroup.addTab(options)`
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Add a new tab and returns the related `Tab` instance.
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* `title`: tab title.
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* `src`: URL to the page which will be loaded into the view. This is actually the same than `options.webview.src`.
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* `badge`: optional text to put into a badge, badge will be hidden if false.
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* `iconURL`: optional URL to the tab icon.
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* `icon`: optional code for a tab icon. Can be used with symbol libraries (example with Font Awesome: `icon: 'fa fa-icon-name'`). This attribute is ignored if an `iconURL` was given.
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* `closable` (default: `true`): if set to `true` the close button won't be displayed and the user won't be able to close the tab. See also `tab.close()`.
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* `visible` (default: `true`): set this to `false` if you don't want to display the tab once it is loaded. If set to `false` then you will need to call `tab.show()` to display the tab.
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* `active` (default: `false`): set this to `true` if you want to activate the tab once it is loaded. Otherwise you will need to call `tab.activate()`.
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* `ready`: a callback function to call once the tab is ready. The `Tab` instance is passed as the only parameter.
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* `webviewAttributes`: attributes to add to the webview tag. See [webview documentation](http://electron.atom.io/docs/api/web-view-tag/#tag-attributes).
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#### `tabGroup.setDefaultTab(options)`
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Define default options to use for creating the tab when the "New Tab" button is clicked or when calling `tabGroup.addTab()` with no parameter.
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```javascript
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tabGroup.setDefaultTab({
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title: "New Page",
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src: "path/to/new-page.html",
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active: true
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});
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```
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#### `tabGroup.getTab(id)`
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Retrieve an instance of `Tab` from this `id` (return `null` if not found).
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#### `tabGroup.getTabByPosition(position)`
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Retrieve an instance of `Tab` from this `position` (return `null` if not found). A negative value is an offset from the right.
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To get the tab in the leftmost position:
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```javascript
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tabGroup.getTabByPosition(1);
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```
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To get the tab in the rightmost position:
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```javascript
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tabGroup.getTabByPosition(-1);
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```
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#### `tabGroup.getTabByRelPosition(position)`
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Retrieve an instance of `Tab` from this `position` relative to the active tab (return `null` if not found).
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`tabGroup.getNextTab()` is an alias to `tabGroup.getTabByRelPosition(1)`.
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`tabGroup.getPreviousTab()` is an alias to `tabGroup.getTabByRelPosition(-1)`.
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#### `tabGroup.getActiveTab()`
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Return the active tab (return `null` if none).
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#### `tabGroup.getTabs()`
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Return all registered tabs.
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#### `tabGroup.eachTab(fn, thisArg)`
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Loop through the list of tabs in `tabGroup` and execute the `fn` function for each tab. `fn` is called with the following parameters:
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* `currentTab`: the current tab object.
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* `index`: the index of the current tab being processed.
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* `tabs`: the full array of tabs (similar to `tabGroup.getTabs()`).
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`thisArg` (optional) is the value to use as `this` when executing `fn`.
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### Tab
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Instances of `Tab` are returned by the `tabGroup.addTab()` method.
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#### `tab.setTitle(title)`
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Set tab title.
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#### `tab.getTitle()`
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Get current tab title.
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#### `tab.setBadge(badge)`
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Set tab badge.
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#### `tab.getBadge()`
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Get current tab badge.
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#### `tab.setIcon (iconURL, icon)`
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Set tab icon (a iconURL or an icon must be given).
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#### `tab.getIcon()`
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Get current tab icon URL / icon.
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#### `tab.setPosition(newPosition)`
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Move tab to the specified position. See [`tabGroup.getTabByPosition`](#tabgroupgettabbypositionposition) for information about positions.
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#### `tab.getPosition(fromRight)`
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Get the tab position. If `fromRight` is true the index returned is negative and is the offset from the right.
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#### `tab.activate()`
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Activate this tab. The class "active" is added to the active tab.
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#### `tab.show(flag)`
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Toggle the "visible" class on the tab. `tab.hide()` is an alias to `tab.show(false)`.
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#### `tab.hasClass(classname)`
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Return `true` if the tab element has the specified classname. Useful for checking if a tab is "active" or "visible".
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#### `tab.close(force)`
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Close the tab (and activate another tab if relevant). When `force` is set to `true` the tab will be closed even if it is not `closable`.
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## Events
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The following events are emitted:
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* `tabGroup.on("tab-added", (tab, tabGroup) => { ... });`
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* `tabGroup.on("tab-removed", (tab, tabGroup) => { ... });`
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* `tabGroup.on("tab-active", (tab, tabGroup) => { ... });`
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* `tab.on("webview-ready", (tab) => { ... });`
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* `tab.on("webview-dom-ready", (tab) => { ... });`
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* `tab.on("title-changed", (title, tab) => { ... });`
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* `tab.on("badge-changed", (badge, tab) => { ... });`
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* `tab.on("icon-changed", (icon, tab) => { ... });`
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* `tab.on("active", (tab) => { ... });`
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* `tab.on("inactive", (tab) => { ... });`
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* `tab.on("visible", (tab) => { ... });`
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* `tab.on("hidden", (tab) => { ... });`
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* `tab.on("close", (tab) => { ... });`
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* `tab.on("closing", (tab, abort) => { ... });` (Use `abort()` function to cancel closing)
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You can also use `tab.once` to automatically remove the listener when invoked:
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* `tab.once("webview-ready", (tab) => { ... });`
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* `tab.once("webview-dom-ready", (tab) => { ... });`
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## Access Electron webview element
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You can access the webview element and use its methods with through the `Tab.webview` attribute. See [webview documentation](https://electronjs.org/docs/api/webview-tag#methods).
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```javascript
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let webview = tab.webview;
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webview.loadURL("file://path/to/new/page.html");
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```
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## Custom styles
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To customize tab-group styles, set new values to [electron-tabs CSS variables](https://github.com/brrd/electron-tabs/blob/master/src/style.css) in your application stylesheet.
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Since `TabGroup` is a Web Component you won't be able to change its styles directly from your app stylesheet. If you need more control over it then you can add a `<style>` tag inside the `<tab-group >` element:
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```html
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<tab-group new-tab-button="true" sortable="true">
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<style>
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/* Write your own CSS rules here... */
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</style>
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</tab-group>
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```
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This method is particularly useful when you need to define custom badges or tab styles:
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```html
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<tab-group new-tab-button="true" sortable="true">
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<style>
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/* Add custom styles */
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.my-badge {
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background-color: orange;
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}
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.my-custom-tab {
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color: red;
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font-weight: bold;
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}
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</style>
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</tab-group>
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<script src="path/to/electron-tabs.js"></script>
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<script>
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const tabGroup = document.querySelector("tab-group");
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tabGroup.addTab({
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title: "Tab with custom badge",
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src: "page.html",
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badge: {
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text: "5",
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classname: "my-badge"
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}
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});
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tabGroup.addTab({
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title: "Tab with custom style",
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src: "page.html",
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ready: function(tab) {
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tab.element.classList.add("my-custom-tab");
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}
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});
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</script>
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```
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## Development
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`electron-tabs` uses TypeScript and Parcel under the hood.
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### Requirements
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Git and Node 12+.
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### Build
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```bash
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# Clone this repo
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git clone git@github.com:brrd/electron-tabs.git
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cd electron-tabs
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# Install dependencies
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npm install
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# Build
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npm run build
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# ...or watch
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npm run watch
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```
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### Demo
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```bash
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npm run demo
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```
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## License
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The MIT License (MIT) - Copyright (c) 2022 Thomas Brouard
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