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Add Copy to Clipboard Button for Regex Templates #534

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16 changes: 16 additions & 0 deletions dev/sass/controls.scss
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,22 @@
border-radius: $control-radius;
}

.copy-button {
margin-top: 10px;
padding: 8px 12px;
background-color: #4CAF50;
color: #fff;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 14px;
}

.copy-button:hover {
background-color: #45a049;
}


input, textarea {
@extend %control;

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141 changes: 79 additions & 62 deletions dev/src/views/Expression.js
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Original file line number Diff line number Diff line change
Expand Up @@ -31,106 +31,123 @@ import EventDispatcher from "../events/EventDispatcher"
import app from "../app";

export default class Expression extends EventDispatcher {
constructor (el) {
constructor(el) {
super();
this.el = el;
this.delim = "/";
this.lexer = new ExpressionLexer();

this._initUI(el);
app.flavor.on("change", ()=> this._onFlavorChange());
app.flavor.on("change", () => this._onFlavorChange());
this._onFlavorChange();
}

set value(expression) {
let regex = Utils.decomposeRegEx(expression || Expression.DEFAULT_EXPRESSION, this.delim);
this.pattern = regex.source;
this.flags = regex.flags;
}

get value() {
return this.editor.getValue();
}

set pattern(pattern) {
let index = this.editor.getValue().lastIndexOf(this.delim);
this.editor.replaceRange(pattern, {line: 0, ch: 1}, {line: 0, ch: index});
this.editor.replaceRange(pattern, { line: 0, ch: 1 }, { line: 0, ch: index });
this._deferUpdate();
}

get pattern() {
return Utils.decomposeRegEx(this.editor.getValue(), this.delim).source;
}

set flags(flags) {
flags = app.flavor.validateFlagsStr(flags);
let str = this.editor.getValue(), index = str.lastIndexOf(this.delim);
this.editor.replaceRange(flags, {line: 0, ch: index + 1}, {line: 0, ch: str.length }); // this doesn't work if readOnly is false.
this.editor.replaceRange(flags, { line: 0, ch: index + 1 }, { line: 0, ch: str.length }); // this doesn't work if readOnly is false.
}

get flags() {
return Utils.decomposeRegEx(this.editor.getValue(), this.delim).flags;
}

get token() {
return this.lexer.token;
}

showFlags() {
this.flagsList.selected = this.flags.split("");
app.tooltip.toggle.toggleOn("flags", this.flagsEl, this.flagsBtn, true, -2);
}

toggleFlag(s) {
let flags = this.flags, i = flags.indexOf(s);
this.flags = i>=0 ? flags.replace(s, "") : flags+s;
this.flags = i >= 0 ? flags.replace(s, "") : flags + s;
}

showFlavors() {
app.tooltip.toggle.toggleOn("flavor", this.flavorEl, this.flavorBtn, true, -2)
}

insert(str) {
this.editor.replaceSelection(str, "end");
}

selectAll() {
CMUtils.selectAll(this.editor);
}
// private methods:

// private methods:
_initUI(el) {
this.editorEl = $.query("> .editor", el);
let editor = this.editor = CMUtils.create(this.editorEl, {
autofocus: true,
maxLength: 2500,
singleLine: true
}, "100%", "100%");

editor.on("mousedown", (cm, evt)=> this._onEditorMouseDown(cm, evt));
editor.on("change", (cm, evt)=> this._onEditorChange(cm, evt));
editor.on("keydown", (cm, evt)=> this._onEditorKeyDown(cm, evt));
// hacky method to disable overwrite mode on expressions to avoid overwriting flags:
editor.toggleOverwrite = ()=>{};


// Add Copy Button
const copyButton = document.createElement("button");
copyButton.textContent = "Copy";
copyButton.className = "copy-button";
copyButton.addEventListener("click", () => {
const patternText = this.pattern || "";
navigator.clipboard.writeText(patternText).then(() => {
alert("Pattern copied!");
}).catch(err => {
console.error("Failed to copy pattern:", err);
});
});

// Append the button to the parent container
this.editorEl.parentElement.appendChild(copyButton);

editor.on("mousedown", (cm, evt) => this._onEditorMouseDown(cm, evt));
editor.on("change", (cm, evt) => this._onEditorChange(cm, evt));
editor.on("keydown", (cm, evt) => this._onEditorKeyDown(cm, evt));

editor.toggleOverwrite = () => { }; // Disable overwrite mode for flags

this.errorEl = $.query(".icon.alert", this.editorEl);
this.errorEl.addEventListener("mouseenter", (evt)=>this._onMouseError(evt));
this.errorEl.addEventListener("mouseleave", (evt)=>this._onMouseError(evt));
this.errorEl.addEventListener("mouseenter", (evt) => this._onMouseError(evt));
this.errorEl.addEventListener("mouseleave", (evt) => this._onMouseError(evt));

this.highlighter = new ExpressionHighlighter(editor);
this.hover = new ExpressionHover(editor, this.highlighter);

this._setInitialExpression();
this._initTooltips(el);
this.value = Expression.DEFAULT_EXPRESSION;
}



_setInitialExpression() {
let editor = this.editor;
editor.setValue("/./g");

// leading /
editor.getDoc().markText({line: 0, ch: 0}, {
editor.getDoc().markText({ line: 0, ch: 0 }, {
line: 0,
ch: 1
}, {
Expand All @@ -139,9 +156,9 @@ export default class Expression extends EventDispatcher {
atomic: true,
inclusiveLeft: true
});

// trailing /g
editor.getDoc().markText({line: 0, ch: 2}, {
editor.getDoc().markText({ line: 0, ch: 2 }, {
line: 0,
ch: 4
}, {
Expand All @@ -152,11 +169,11 @@ export default class Expression extends EventDispatcher {
});
this._deferUpdate();
}

_deferUpdate() {
Utils.defer(()=>this._update(), "Expression._update");
Utils.defer(() => this._update(), "Expression._update");
}

_update() {
let expr = this.editor.getValue();
this.lexer.profile = app.flavor.profile;
Expand All @@ -166,59 +183,59 @@ export default class Expression extends EventDispatcher {
this.highlighter.draw(token);
this.dispatchEvent("change");
}

_initTooltips(el) {
const template = $.template`<svg class="inline check icon"><use xlink:href="#check"></use></svg> ${"label"}`;
let flavorData = app.flavor.profiles.map((o)=>({id:o.id, label:o.label+" ("+(o.browser?"Browser":"Server")+")"}));
let flavorData = app.flavor.profiles.map((o) => ({ id: o.id, label: o.label + " (" + (o.browser ? "Browser" : "Server") + ")" }));

this.flavorBtn = $.query("section.expression .button.flavor", el);
this.flavorEl = $.query("#library #tooltip-flavor");
this.flavorList = new List($.query("ul.list", this.flavorEl), {data:flavorData, template});
this.flavorList.on("change", ()=>this._onFlavorListChange());
this.flavorList = new List($.query("ul.list", this.flavorEl), { data: flavorData, template });
this.flavorList.on("change", () => this._onFlavorListChange());
this.flavorBtn.addEventListener("click", (evt) => this.showFlavors());
$.query(".icon.help", this.flavorEl).addEventListener("click", ()=> app.sidebar.goto("engine"));
$.query(".icon.help", this.flavorEl).addEventListener("click", () => app.sidebar.goto("engine"));

this.flagsBtn = $.query("section.expression .button.flags", el);
this.flagsEl = $.query("#library #tooltip-flags");
this.flagsList = new List($.query("ul.list", this.flagsEl), {data:[], multi:true, template});
this.flagsList.on("change", ()=> this._onFlagListChange());
this.flagsList = new List($.query("ul.list", this.flagsEl), { data: [], multi: true, template });
this.flagsList.on("change", () => this._onFlagListChange());
this.flagsBtn.addEventListener("click", (evt) => this.showFlags());
$.query(".icon.help", this.flagsEl).addEventListener("click", ()=> app.sidebar.goto("flags"));
$.query(".icon.help", this.flagsEl).addEventListener("click", () => app.sidebar.goto("flags"));
}

// event handlers:
// event handlers:
_onFlavorListChange() {
app.tooltip.toggle.hide("flavor");
app.flavor.value = this.flavorList.selected;
Track.page("flavor/"+this.flavorList.selected);
Track.page("flavor/" + this.flavorList.selected);
}

_onFlagListChange() {
let sel = this.flagsList.selected;
this.flags = sel ? sel.join("") : "";
Track.event("set_flags", "engagement", this.flags);
}

_onFlavorChange() {
let flavor = app.flavor, profile = flavor.profile;
this.flavorList.selected = profile.id;
$.query("> .label", this.flavorBtn).innerText = profile.label;
let supported = Expression.FLAGS.split("").filter((n)=>!!profile.flags[n]);

let supported = Expression.FLAGS.split("").filter((n) => !!profile.flags[n]);
let labels = Expression.FLAG_LABELS;
this.flagsList.data = supported.map((n)=>({id:n, label:labels[n]}));
this.flags = this.flags.split("").filter((n)=>!!profile.flags[n]).join("");
this.flagsList.data = supported.map((n) => ({ id: n, label: labels[n] }));
this.flags = this.flags.split("").filter((n) => !!profile.flags[n]).join("");
}

_onEditorMouseDown(cm, evt) {
// offset by half a character to make accidental clicks less likely:
let index = CMUtils.getCharIndexAt(cm, evt.clientX - cm.defaultCharWidth() * 0.6, evt.clientY);
if (index >= cm.getValue().lastIndexOf(this.delim)) {
this.showFlags();
}
}


_onEditorChange(cm, evt) {
// catches pasting full expressions in.
// TODO: will need to be updated to work with other delimeters
Expand All @@ -230,7 +247,7 @@ export default class Expression extends EventDispatcher {
}
this.value = str;
}

_onEditorKeyDown(cm, evt) {
// Ctrl or Command + D by default, will delete the expression and the flags field, Re: https://github.com/gskinner/regexr/issues/74
// So we just manually reset to nothing here.
Expand All @@ -239,17 +256,17 @@ export default class Expression extends EventDispatcher {
this.pattern = "";
}
}

_onMouseError(evt) {
let tt = app.tooltip.hover, errs = this.lexer.errors;
if (evt.type === "mouseleave") { return tt.hide("error"); }
if (errs.length === 0) { return; }
let err = errs.length === 1 && errs[0].error;
let str = err ? app.reference.getError(err, errs[0]) : "Problems in the Expression are underlined in <span class='exp-error'>red</span>. Roll over them for details.";
let label = err && err.warning ? "WARNING" : "PARSE ERROR";
tt.showOn("error", "<span class='error'>"+label+":</span> "+str, this.errorEl);
tt.showOn("error", "<span class='error'>" + label + ":</span> " + str, this.errorEl);
}

}

Expression.DEFAULT_EXPRESSION = "/([A-Z])\\w+/g";
Expand Down