Initial release
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190
main.ts
190
main.ts
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@ -1,134 +1,84 @@
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import { App, Editor, MarkdownView, Modal, Notice, Plugin, PluginSettingTab, Setting } from 'obsidian';
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import { Plugin } from "obsidian";
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// Remember to rename these classes and interfaces!
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interface MyPluginSettings {
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mySetting: string;
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interface Color {
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r: number;
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g: number;
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b: number;
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}
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const DEFAULT_SETTINGS: MyPluginSettings = {
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mySetting: 'default'
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}
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export default class MyPlugin extends Plugin {
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settings: MyPluginSettings;
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export default class SVGView extends Plugin {
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async onload() {
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await this.loadSettings();
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this.registerMarkdownPostProcessor((element, context) => {
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const images = element.querySelectorAll("img");
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// This creates an icon in the left ribbon.
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const ribbonIconEl = this.addRibbonIcon('dice', 'Sample Plugin', (evt: MouseEvent) => {
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// Called when the user clicks the icon.
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new Notice('This is a notice!');
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images.forEach((item) => {
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if (!item.src.startsWith("data:image/svg+xml")) {
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// Exclude image who aren't SVG
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return;
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}
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/** Convert to grayscale */
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const colorToGrayscale = (color: Color) => {
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return 0.3 * color.r + 0.59 * color.g + 0.11 * color.b;
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};
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/** Extract color using canvas2d */
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const extractColors = (image: HTMLImageElement) => {
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const canvas = document.createElement("canvas");
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canvas.width = image.width;
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canvas.height = image.height;
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const ctx = canvas.getContext("2d");
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if (!ctx) {
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return;
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}
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ctx.drawImage(image, 0, 0);
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const imageData = ctx.getImageData(
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0,
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0,
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Math.max(1, canvas.width),
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Math.max(1, canvas.height)
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);
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const pixelData = imageData.data;
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const colors: Color[] = [];
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for (let i = 0; i < pixelData.length; i += 4) {
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if (pixelData[i + 3] > 0) {
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colors.push({
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r: pixelData[i],
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g: pixelData[i + 1],
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b: pixelData[i + 2],
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});
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// Perform additional things with the ribbon
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ribbonIconEl.addClass('my-plugin-ribbon-class');
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}
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}
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// This adds a status bar item to the bottom of the app. Does not work on mobile apps.
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const statusBarItemEl = this.addStatusBarItem();
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statusBarItemEl.setText('Status Bar Text');
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return colors;
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};
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// This adds a simple command that can be triggered anywhere
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this.addCommand({
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id: 'open-sample-modal-simple',
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name: 'Open sample modal (simple)',
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callback: () => {
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new SampleModal(this.app).open();
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// Extract colors
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const colors = extractColors(item);
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if (!colors) {
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return;
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}
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// Calculate the average grayscale value
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const grayscaleValues = colors.map(colorToGrayscale);
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const totalGrayscale = grayscaleValues.reduce(
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(acc, val) => acc + val,
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0
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);
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const averageGrayscale =
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totalGrayscale / grayscaleValues.length;
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if (averageGrayscale < 128) {
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item.setCssStyles({
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filter: "invert(1)",
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});
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}
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});
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// This adds an editor command that can perform some operation on the current editor instance
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this.addCommand({
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id: 'sample-editor-command',
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name: 'Sample editor command',
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editorCallback: (editor: Editor, view: MarkdownView) => {
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console.log(editor.getSelection());
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editor.replaceSelection('Sample Editor Command');
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}
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});
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// This adds a complex command that can check whether the current state of the app allows execution of the command
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this.addCommand({
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id: 'open-sample-modal-complex',
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name: 'Open sample modal (complex)',
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checkCallback: (checking: boolean) => {
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// Conditions to check
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const markdownView = this.app.workspace.getActiveViewOfType(MarkdownView);
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if (markdownView) {
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// If checking is true, we're simply "checking" if the command can be run.
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// If checking is false, then we want to actually perform the operation.
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if (!checking) {
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new SampleModal(this.app).open();
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}
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// This command will only show up in Command Palette when the check function returns true
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return true;
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}
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}
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});
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// This adds a settings tab so the user can configure various aspects of the plugin
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this.addSettingTab(new SampleSettingTab(this.app, this));
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// If the plugin hooks up any global DOM events (on parts of the app that doesn't belong to this plugin)
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// Using this function will automatically remove the event listener when this plugin is disabled.
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this.registerDomEvent(document, 'click', (evt: MouseEvent) => {
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console.log('click', evt);
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});
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// When registering intervals, this function will automatically clear the interval when the plugin is disabled.
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this.registerInterval(window.setInterval(() => console.log('setInterval'), 5 * 60 * 1000));
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}
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onunload() {
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}
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async loadSettings() {
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this.settings = Object.assign({}, DEFAULT_SETTINGS, await this.loadData());
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}
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async saveSettings() {
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await this.saveData(this.settings);
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}
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}
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class SampleModal extends Modal {
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constructor(app: App) {
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super(app);
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}
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onOpen() {
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const {contentEl} = this;
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contentEl.setText('Woah!');
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}
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onClose() {
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const {contentEl} = this;
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contentEl.empty();
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}
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}
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class SampleSettingTab extends PluginSettingTab {
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plugin: MyPlugin;
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constructor(app: App, plugin: MyPlugin) {
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super(app, plugin);
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this.plugin = plugin;
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}
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display(): void {
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const {containerEl} = this;
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containerEl.empty();
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new Setting(containerEl)
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.setName('Setting #1')
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.setDesc('It\'s a secret')
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.addText(text => text
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.setPlaceholder('Enter your secret')
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.setValue(this.plugin.settings.mySetting)
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.onChange(async (value) => {
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this.plugin.settings.mySetting = value;
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await this.plugin.saveSettings();
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}));
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}
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onunload() {}
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}
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