128 lines
4.3 KiB
JavaScript
128 lines
4.3 KiB
JavaScript
// CodeMirror, copyright (c) by Marijn Haverbeke and others
|
|
// Distributed under an MIT license: https://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();
|
|
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);
|
|
info.panels++;
|
|
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);
|
|
if (!replace) {
|
|
info.panels++;
|
|
}
|
|
if (options.stable && isAtTop(this, node))
|
|
this.scrollTo(null, this.getScrollInfo().top + height)
|
|
|
|
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);
|
|
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 == 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.heightLeft -= (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();
|
|
}
|
|
|
|
function isAtTop(cm, dom) {
|
|
for (var sibling = dom.nextSibling; sibling; sibling = sibling.nextSibling)
|
|
if (sibling == cm.getWrapperElement()) return true
|
|
return false
|
|
}
|
|
});
|