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| author | Shulhan <ms@kilabit.info> | 2024-09-15 14:32:48 +0700 |
|---|---|---|
| committer | Shulhan <ms@kilabit.info> | 2024-09-15 14:32:48 +0700 |
| commit | d1e96e09438b4a5c7580b86c469e817a61be991f (patch) | |
| tree | 4d81fb2fd62207bbb9162b81083c721ec8fd8e29 /editor/editor.js | |
| parent | 1cc9c9dd68a3a59c685505228336430624608852 (diff) | |
| download | pakakeh.ts-d1e96e09438b4a5c7580b86c469e817a61be991f.tar.xz | |
all: commit all generate JavaScript files
This is to simplify development on third party where they can
clone and include the file directly without installing or running
anything to build the files.
Diffstat (limited to 'editor/editor.js')
| -rw-r--r-- | editor/editor.js | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/editor/editor.js b/editor/editor.js new file mode 100644 index 0000000..e80e147 --- /dev/null +++ b/editor/editor.js @@ -0,0 +1,205 @@ +// SPDX-FileCopyrightText: 2021 M. Shulhan <ms@kilabit.info> +// SPDX-License-Identifier: GPL-3.0-or-later +const WUI_EDITOR_CLASS = "wui_editor"; +const WUI_EDITOR_CLASS_LINE_NUMBER = "wui_editor_line_number"; +const WUI_EDITOR_CLASS_CONTENT = "wui_editor_content"; +export class WuiEditor { + constructor(opts) { + this.opts = opts; + this.content = ""; + this.totalLine = 0; + this.elLineNumber = document.createElement("div"); + this.elContent = document.createElement("div"); + this.isKeyControl = false; + this.id = opts.id; + this.isEditable = opts.isEditable; + const el = document.getElementById(opts.id); + if (!el) { + console.error("WuiEditor: element ID not found:", opts.id); + return; + } + this.el = el; + this.initStyle(); + this.initLineNumber(); + this.initContent(); + this.el.classList.add(WUI_EDITOR_CLASS); + } + // getContent return content of file. + getContent() { + let content = ""; + let el; + let line; + this.elContent.childNodes.forEach((node) => { + switch (node.nodeType) { + case Node.ELEMENT_NODE: + el = node; + line = el.innerText; + break; + case Node.TEXT_NODE: + line = node.nodeValue || ""; + break; + } + line = line.trimEnd(); + content += line + "\n"; + }); + content = content.trim(); + return content; + } + // open the node for editing. + // The content MUST be encoded in base64. + open(node) { + this.content = atob(node.content); + this.content = this.content.replace("\r\n", "\n"); + this.render(this.content); + } + setEditable(yes) { + this.isEditable = yes; + if (yes) { + this.elContent.setAttribute("contenteditable", "true"); + } + else { + this.elContent.setAttribute("contenteditable", "false"); + } + } + addNewLine() { + this.totalLine++; + const elLine = document.createElement("div"); + elLine.innerText = `${this.totalLine}`; + this.elLineNumber.appendChild(elLine); + } + initLineNumber() { + this.elLineNumber.classList.add(WUI_EDITOR_CLASS_LINE_NUMBER); + this.el.appendChild(this.elLineNumber); + } + initContent() { + if (this.opts.isEditable) { + this.elContent.setAttribute("contenteditable", "true"); + this.elContent.setAttribute("spellcheck", "false"); + this.elContent.addEventListener("paste", (ev) => { + var _a; + ev.preventDefault(); + let text = ((_a = ev.clipboardData) === null || _a === void 0 ? void 0 : _a.getData("text/plain")) || ""; + if (!text) { + console.error(`on paste: text is ${text}`); + return; + } + const selection = window.getSelection(); + if (!selection || !selection.rangeCount) { + console.error(`on paste: failed to get selection`); + return; + } + text = text.trimEnd(); + selection.deleteFromDocument(); + selection.getRangeAt(0).insertNode(document.createTextNode(text)); + selection.collapseToEnd(); + this.renderLineNumber(this.getContent()); + }); + this.elContent.onkeydown = (ev) => { + this.onKeydownDocument(this, ev); + }; + this.elContent.onkeyup = (ev) => { + this.onKeyupDocument(this, ev); + }; + this.elContent.addEventListener("blur", () => { + this.isKeyControl = false; + }); + } + this.elContent.classList.add(WUI_EDITOR_CLASS_CONTENT); + this.el.appendChild(this.elContent); + } + initStyle() { + const style = document.createElement("style"); + style.type = "text/css"; + style.innerText = ` + [contenteditable] { + outline: 0px solid transparent; + } + .${WUI_EDITOR_CLASS} { + background-color: cornsilk; + border: 1px solid brown; + font-family: monospace; + line-height: 1.6em; + overflow-y: scroll; + width: 100%; + } + .${WUI_EDITOR_CLASS_LINE_NUMBER} { + background-color: bisque; + border-right: 1px dashed brown; + color: dimgrey; + display: inline-block; + font-family: monospace; + margin-right: 4px; + padding: 0px 8px; + position: sticky; + text-align: right; + width: 3em; + } + .${WUI_EDITOR_CLASS_CONTENT} { + caret-color: red; + display: inline-block; + padding: 0px 8px 0 0; + vertical-align: top; + white-space: pre; + width: calc(100% - 10em); + word-wrap: normal; + } + `; + document.head.appendChild(style); + } + onKeydownDocument(ed, ev) { + switch (ev.key) { + case "Control": + ed.isKeyControl = true; + break; + case "Enter": + if (ed.isKeyControl) { + ev.preventDefault(); + ev.stopPropagation(); + if (ed.opts.onSave) { + const content = ed.getContent(); + ed.opts.onSave(content); + ed.render(content); + } + return false; + } + this.addNewLine(); + return false; + } + return true; + } + onKeyupDocument(ed, ev) { + switch (ev.key) { + case "Control": + ed.isKeyControl = false; + return true; + } + return true; + } + render(content) { + const lines = content.split("\n"); + this.elContent.innerText = ""; + this.elLineNumber.innerText = ""; + lines.forEach((line, x) => { + const el = document.createElement("div"); + el.innerText = `${x + 1}`; + this.elLineNumber.appendChild(el); + const div = document.createElement("div"); + div.innerText = line; + if (line == "") { + div.appendChild(document.createElement("br")); + } + this.elContent.appendChild(div); + }); + this.totalLine = lines.length; + } + renderLineNumber(content) { + const lines = content.split("\n"); + this.elLineNumber.innerText = ""; + lines.forEach((_, x) => { + const el = document.createElement("div"); + el.innerText = `${x + 1}`; + this.elLineNumber.appendChild(el); + }); + this.totalLine = lines.length; + } +} |
