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https://github.com/varkor/quiver.git
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Add option to (not) centre tikz-cd output
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4255f17be2
commit
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@ -122,6 +122,11 @@ DOM.Element = class {
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bounding_rect() {
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return this.element.getBoundingClientRect();
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}
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dispatch(event) {
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this.element.dispatchEvent(event);
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return this;
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}
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};
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/// A class for conveniently dealing with SVGs.
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57
src/main.css
57
src/main.css
@ -517,7 +517,7 @@ being. */
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font-size: inherit;
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font-family: monospace;
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color: hsl(0, 0%, 96%);
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color: var(--ui-white);
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}
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.panel input[type="text"]::placeholder {
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@ -1200,7 +1200,7 @@ button.flash {
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background: hsla(50, 100%, 70%, 1);
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}
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.export .tip.hidden, .export .warning.hidden {
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.export .hidden {
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display: none;
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}
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@ -1210,6 +1210,59 @@ button.flash {
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list-style-type: circle;
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}
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.export .options {
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margin-bottom: 8pt;
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padding: 6pt 4pt;
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background: var(--ui-black);
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border-radius: 2px;
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color: var(--ui-white);
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user-select: none;
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-webkit-user-select: none;
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}
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.export .options label {
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position: relative;
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top: 1px;
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}
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.export .options label kbd.hint {
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/* Leave some space for the checkbox itself. */
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transform: translate(-50%, -50%);
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}
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.export .options label input[type="checkbox"] {
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margin-top: -1px;
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margin-right: 6pt;
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width: 12pt;
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height: 12pt;
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vertical-align: middle;
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-webkit-appearance: none;
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appearance: none;
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background: var(--ui-white);
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border-radius: 2px;
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outline: none;
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}
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.export .options label input[type="checkbox"]:hover {
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background: hsl(0, 0%, 80%);
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}
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.export .options label input[type="checkbox"]:checked {
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background: var(--ui-focus);
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text-align: center;
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}
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.export .options label input[type="checkbox"]:checked::before {
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content: "✓";
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color: var(--ui-black);
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}
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.export .code {
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font: 16px monospace;
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color: white;
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@ -174,12 +174,12 @@ class Quiver {
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/// Currently, the supported formats are:
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/// - "tikz-cd"
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/// - "base64"
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export(format) {
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export(format, settings) {
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switch (format) {
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case "tikz-cd":
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return QuiverExport.tikz_cd.export(this);
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return QuiverExport.tikz_cd.export(this, settings);
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case "base64":
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return QuiverImportExport.base64.export(this);
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return QuiverImportExport.base64.export(this, settings);
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default:
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throw new Error(`unknown export format \`${format}\``);
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}
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@ -199,18 +199,21 @@ class QuiverImportExport extends QuiverExport {
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}
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QuiverExport.tikz_cd = new class extends QuiverExport {
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export(quiver) {
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export(quiver, settings) {
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let output = "";
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// Wrap tikz-cd code with `\begin{tikzcd} ... \end{tikzcd}`.
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// We also add custom TikZ styles if required, e.g. for drawing fixed-height curves, which
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// improve upon the build-in `bend` option.
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const wrap_boilerplate = (output) => {
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const tikzcd = `\\[\\begin{tikzcd}\n${
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let tikzcd = `\\begin{tikzcd}\n${
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output.length > 0 ? `${
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output.split("\n").map(line => `\t${line}`).join("\n")
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}\n` : ""
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}\\end{tikzcd}\\]`;
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}\\end{tikzcd}`;
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if (settings.get("export.centre_diagram")) {
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tikzcd = `\\[${tikzcd}\\]`;
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}
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return `% ${QuiverImportExport.base64.export(quiver).data}\n${tikzcd}`;
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};
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123
src/ui.js
123
src/ui.js
@ -584,6 +584,9 @@ class UI {
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// The URL from which the macros have been fetched (if at all).
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this.macro_url = null;
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// The user settings, which are stored persistently across sessions in `localStorage`.
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this.settings = new Settings();
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}
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/// Reset most of the UI. We don't bother resetting current zoom, etc.: just enough to make
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@ -3257,6 +3260,35 @@ History.State = class {
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}
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};
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class Settings {
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constructor() {
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this.data = {
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// Whether to wrap the `tikz-cd` output in `\[ \]`.
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"export.centre_diagram": true,
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};
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try {
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// Try to update the default values with the saved settings.
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this.data = Object.assign(
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this.data,
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JSON.parse(window.localStorage.getItem("settings"))
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);
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} catch (_) {
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// The JSON stored in `settings` was malformed.
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}
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}
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/// Returns a saved user setting, or the default value if a setting has not been modified yet.
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get(setting) {
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return this.data[setting];
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}
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/// Saves a user setting.
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set(setting, value) {
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this.data[setting] = value;
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window.localStorage.setItem("settings", JSON.stringify(this.data));
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}
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}
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/// A panel for editing cell data.
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class Panel {
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constructor() {
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@ -3889,13 +3921,31 @@ class Panel {
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// If the user clicks on two different exports in a row
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// we will simply switch the displayed export format.
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// Clicking on the same button twice closes the panel.
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if (this.export !== format) {
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if (this.export === null || this.export.format !== format) {
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ui.switch_mode(new UIMode.Modal());
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// Get the encoding of the diagram. The output may be modified by the caller.
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const { data, metadata } = modify(ui.quiver.export(format));
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const { data, metadata } = modify(ui.quiver.export(format, ui.settings));
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let export_pane, tip, warning, list, options, content;
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const update_output = (data) => {
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// At present, the data is always a string.
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content.clear().add(data);
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// Select the code for easy copying.
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const select_output = () => {
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const selection = window.getSelection();
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const range = document.createRange();
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range.selectNodeContents(content.element);
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selection.removeAllRanges();
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selection.addRange(range);
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};
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select_output();
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// Safari seems to occasionally fail to select the text immediately, so we
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// also select it after a delay to ensure the text is selected.
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UI.delay(select_output);
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};
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let export_pane, tip, warning, list, content;
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if (this.export === null) {
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// Create the export pane.
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export_pane = new DOM.Element("div", { class: "export" });
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@ -3930,14 +3980,48 @@ class Panel {
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"appear in this diagram:")
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.add(list = new DOM.Element("ul"))
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.add_to(export_pane);
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const checkbox = new DOM.Element("input", { type: "checkbox" });
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options = new DOM.Element("div", { class: "options hidden" })
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.add(new DOM.Element("label")
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.add(checkbox)
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.add("Centre diagram")
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)
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.add_to(export_pane);
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// When the shortcut is active, we will always be displaying the modal pane,
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// so the shortcut is always valid.
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const shortcut = { key: "C", context: Shortcuts.SHORTCUT_PRIORITY.Always };
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new DOM.Element("kbd", { class: "hint button" })
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.add(Shortcuts.name([shortcut])).add_to(checkbox.parent);
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const shortcuts = [ui.shortcuts.add([shortcut], () => {
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if (!options.class_list.contains("hidden")) {
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checkbox.element.checked = !checkbox.element.checked;
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checkbox.dispatch(new Event("change"));
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}
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})];
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checkbox.listen("change", () => {
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ui.settings.set("export.centre_diagram", checkbox.element.checked);
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// Update the output. We ignore `metadata`, which currently does not change
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// in response to the settings.
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const { data } = modify(ui.quiver.export(format, ui.settings));
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update_output(data);
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});
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// Prevent the highlighted output from being deselected when changing a setting.
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checkbox.listen(pointer_event("up"), (event) => event.preventDefault());
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content = new DOM.Element("div", { class: "code" }).add_to(export_pane);
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ui.element.add(export_pane);
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this.export = { shortcuts };
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} else {
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// Find the existing export pane.
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export_pane = ui.element.query_selector(".export");
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tip = export_pane.query_selector(".tip");
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warning = export_pane.query_selector(".warning");
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list = export_pane.query_selector("ul");
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options = export_pane.query_selector(".options");
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content = export_pane.query_selector(".code");
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}
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// Display a warning if necessary.
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@ -3951,18 +4035,18 @@ class Panel {
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}
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tip.class_list.toggle("hidden", format !== "tikz-cd");
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warning.class_list.toggle("hidden", unsupported_items.length === 0);
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options.class_list.toggle("hidden", format !== "tikz-cd");
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// At present, the data is always a string.
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content.clear().add(data);
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const centre_checkbox = options.query_selector('input[type="checkbox"]');
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if (ui.settings.get("export.centre_diagram")) {
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centre_checkbox.set_attributes({ checked: "" });
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} else {
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centre_checkbox.remove_attributes("checked");
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}
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this.export = format;
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this.export.format = format;
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// Select the code for easy copying.
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const selection = window.getSelection();
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const range = document.createRange();
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range.selectNodeContents(content.element);
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selection.removeAllRanges();
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selection.addRange(range);
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update_output(data);
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// Disable cell data editing while the export pane is visible.
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this.update(ui);
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} else {
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@ -4475,6 +4559,9 @@ class Panel {
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dismiss_export_pane(ui) {
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if (this.export !== null) {
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ui.element.query_selector(".export").remove();
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for (const id of this.export.shortcuts) {
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ui.shortcuts.remove(id);
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}
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this.export = null;
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ui.switch_mode(UIMode.default);
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this.update(ui);
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@ -4491,6 +4578,9 @@ class Shortcuts {
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// A map from keys to the shortcuts to which they correspond.
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this.shortcuts = new Map();
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// An identifier for shortcuts, used to allow the caller to delete shortcuts.
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this.next_id = 0;
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// Handle global key presses (such as, but not exclusively limited to, keyboard shortcuts).
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const handle_shortcut = (type, event) => {
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// Many keyboard shortcuts are only relevant when we're not midway
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@ -4592,6 +4682,7 @@ class Shortcuts {
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this.shortcuts.set(key, []);
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}
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this.shortcuts.get(key).push({
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id: this.next_id,
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// `null` means we don't care about whether the modifier key
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// is pressed or not, so we need to special case it.
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modifier: shortcut.modifier !== null ? (shortcut.modifier || false) : null,
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@ -4604,6 +4695,14 @@ class Shortcuts {
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button,
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});
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}
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return this.next_id++;
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}
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// Remove all actions associated to a shortcut ID.
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remove(id) {
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for (const [key, shortcuts] of this.shortcuts) {
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this.shortcuts.set(key, shortcuts.filter((shortcut) => shortcut.id !== id));
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}
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}
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/// Returns whether this is likely to be an Apple platform or not, which determines what style
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