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-rw-r--r--js/codemirror/panel.js112
1 files changed, 112 insertions, 0 deletions
diff --git a/js/codemirror/panel.js b/js/codemirror/panel.js
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+++ b/js/codemirror/panel.js
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+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/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();
+
+ 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 (options.replace instanceof Panel && !options.replace.cleared) {
+ wrapper.insertBefore(node, options.replace.node);
+ options.replace.clear();
+ } 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;
+ this._setSize(null, info.heightLeft -= height);
+ info.panels++;
+ return new Panel(this, node, options, height);
+ });
+
+ function Panel(cm, node, options, height) {
+ this.cm = cm;
+ this.node = node;
+ this.options = options;
+ this.height = height;
+ this.cleared = false;
+ }
+
+ Panel.prototype.clear = function() {
+ if (this.cleared) return;
+ this.cleared = true;
+ var info = this.cm.state.panels;
+ this.cm._setSize(null, info.heightLeft += this.height);
+ info.wrapper.removeChild(this.node);
+ if (--info.panels == 0) removePanels(this.cm);
+ };
+
+ Panel.prototype.changed = function(height) {
+ var newHeight = height == null ? this.node.offsetHeight : height;
+ var info = this.cm.state.panels;
+ this.cm._setSize(null, info.height += (newHeight - this.height));
+ this.height = newHeight;
+ };
+
+ 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,
+ heightLeft: height,
+ panels: 0,
+ wrapper: document.createElement("div")
+ };
+ wrap.parentNode.insertBefore(info.wrapper, wrap);
+ var hasFocus = cm.hasFocus();
+ info.wrapper.appendChild(wrap);
+ if (hasFocus) cm.focus();
+
+ cm._setSize = cm.setSize;
+ if (height != null) cm.setSize = function(width, newHeight) {
+ if (newHeight == null) return this._setSize(width, newHeight);
+ 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;
+ info.wrapper.style.height = "";
+ }
+ }
+ cm._setSize(width, info.heightLeft += (newHeight - height));
+ height = newHeight;
+ };
+ }
+
+ function removePanels(cm) {
+ var info = cm.state.panels;
+ cm.state.panels = null;
+
+ var wrap = cm.getWrapperElement();
+ info.wrapper.parentNode.replaceChild(wrap, info.wrapper);
+ wrap.style.height = info.setHeight;
+ cm.setSize = cm._setSize;
+ cm.setSize();
+ }
+});