--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.cms/lib/codemirror/addon/display/panel.js	Fri Oct 11 22:40:23 2024 +0000
@@ -0,0 +1,133 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/5/LICENSE
+
+(function (mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function (CodeMirror) {
+  CodeMirror.defineExtension("addPanel", function (node, options) {
+    options = options || {};
+
+    if (!this.state.panels) initPanels(this);
+
+    var info = this.state.panels;
+    var wrapper = info.wrapper;
+    var cmWrapper = this.getWrapperElement();
+    var replace = options.replace instanceof Panel && !options.replace.cleared;
+
+    if (options.after instanceof Panel && !options.after.cleared) {
+      wrapper.insertBefore(node, options.before.node.nextSibling);
+    } else if (options.before instanceof Panel && !options.before.cleared) {
+      wrapper.insertBefore(node, options.before.node);
+    } else if (replace) {
+      wrapper.insertBefore(node, options.replace.node);
+      options.replace.clear(true);
+    } else if (options.position == "bottom") {
+      wrapper.appendChild(node);
+    } else if (options.position == "before-bottom") {
+      wrapper.insertBefore(node, cmWrapper.nextSibling);
+    } else if (options.position == "after-top") {
+      wrapper.insertBefore(node, cmWrapper);
+    } else {
+      wrapper.insertBefore(node, wrapper.firstChild);
+    }
+
+    var height = (options && options.height) || node.offsetHeight;
+
+    var panel = new Panel(this, node, options, height);
+    info.panels.push(panel);
+
+    this.setSize();
+    if (options.stable && isAtTop(this, node))
+      this.scrollTo(null, this.getScrollInfo().top + height);
+
+    return panel;
+  });
+
+  function Panel(cm, node, options, height) {
+    this.cm = cm;
+    this.node = node;
+    this.options = options;
+    this.height = height;
+    this.cleared = false;
+  }
+
+  /* when skipRemove is true, clear() was called from addPanel().
+   * Thus removePanels() should not be called (issue 5518) */
+  Panel.prototype.clear = function (skipRemove) {
+    if (this.cleared) return;
+    this.cleared = true;
+    var info = this.cm.state.panels;
+    info.panels.splice(info.panels.indexOf(this), 1);
+    this.cm.setSize();
+    if (this.options.stable && isAtTop(this.cm, this.node))
+      this.cm.scrollTo(null, this.cm.getScrollInfo().top - this.height)
+    info.wrapper.removeChild(this.node);
+    if (info.panels.length == 0 && !skipRemove) removePanels(this.cm);
+  };
+
+  Panel.prototype.changed = function () {
+    this.height = this.node.getBoundingClientRect().height;
+    this.cm.setSize();
+  };
+
+  function initPanels(cm) {
+    var wrap = cm.getWrapperElement()
+    var style = window.getComputedStyle ? window.getComputedStyle(wrap) : wrap.currentStyle;
+    var height = parseInt(style.height);
+    var info = cm.state.panels = {
+      setHeight: wrap.style.height,
+      panels: [],
+      wrapper: document.createElement("div")
+    };
+    var hasFocus = cm.hasFocus(), scrollPos = cm.getScrollInfo()
+    wrap.parentNode.insertBefore(info.wrapper, wrap);
+    info.wrapper.appendChild(wrap);
+    cm.scrollTo(scrollPos.left, scrollPos.top)
+    if (hasFocus) cm.focus();
+
+    cm._setSize = cm.setSize;
+    if (height != null) cm.setSize = function (width, newHeight) {
+      if (!newHeight) newHeight = info.wrapper.offsetHeight;
+      info.setHeight = newHeight;
+      if (typeof newHeight != "number") {
+        var px = /^(\d+\.?\d*)px$/.exec(newHeight);
+        if (px) {
+          newHeight = Number(px[1]);
+        } else {
+          info.wrapper.style.height = newHeight;
+          newHeight = info.wrapper.offsetHeight;
+        }
+      }
+      var editorheight = newHeight - info.panels
+        .map(function (p) { return p.node.getBoundingClientRect().height; })
+        .reduce(function (a, b) { return a + b; }, 0);
+      cm._setSize(width, editorheight);
+      height = newHeight;
+    };
+  }
+
+  function removePanels(cm) {
+    var info = cm.state.panels;
+    cm.state.panels = null;
+
+    var wrap = cm.getWrapperElement()
+    var hasFocus = cm.hasFocus(), scrollPos = cm.getScrollInfo()
+    info.wrapper.parentNode.replaceChild(wrap, info.wrapper);
+    cm.scrollTo(scrollPos.left, scrollPos.top)
+    if (hasFocus) cm.focus();
+    wrap.style.height = info.setHeight;
+    cm.setSize = cm._setSize;
+    cm.setSize();
+  }
+
+  function isAtTop(cm, dom) {
+    for (var sibling = dom.nextSibling; sibling; sibling = sibling.nextSibling)
+      if (sibling == cm.getWrapperElement()) return true
+    return false
+  }
+});