"use strict";
var event = require("../lib/event");
var UA = require("../lib/useragent");
var ace = require("../ace");
module.exports = exports = ace;
/**
* Returns the CSS property of element.
* 1) If the CSS property is on the style object of the element, use it, OR
* 2) Compute the CSS property
*
* If the property can't get computed, is 'auto' or 'intrinsic', the former
* calculated property is used (this can happen in cases where the textarea
* is hidden and has no dimension styles).
* @param {HTMLElement} element
* @param {HTMLElement} container
* @param {string} property
*/
var getCSSProperty = function(element, container, property) {
var ret = element.style[property];
if (!ret) {
if (window.getComputedStyle) {
ret = window.getComputedStyle(element, '').getPropertyValue(property);
} else {
// @ts-ignore
ret = element.currentStyle[property];
}
}
if (!ret || ret == 'auto' || ret == 'intrinsic') {
ret = container.style[property];
}
return ret;
};
/**
* @param {HTMLElement} elm
* @param {Object} styles
*/
function applyStyles(elm, styles) {
for (var style in styles) {
elm.style[style] = styles[style];
}
}
function setupContainer(element, getValue) {
if (element.type != 'textarea') {
throw new Error("Textarea required!");
}
var parentNode = element.parentNode;
// This will hold the editor.
var container = document.createElement('div');
// To put Ace in the place of the textarea, we have to copy a few of the
// textarea's style attributes to the div container.
//
// The problem is that the properties have to get computed (they might be
// defined by a CSS file on the page - you can't access such rules that
// apply to an element via elm.style). Computed properties are converted to
// pixels although the dimension might be given as percentage. When the
// window resizes, the dimensions defined by percentages changes, so the
// properties have to get recomputed to get the new/true pixels.
var resizeEvent = function() {
var style = 'position:relative;';
[
'margin-top', 'margin-left', 'margin-right', 'margin-bottom'
].forEach(function(item) {
style += item + ':' +
getCSSProperty(element, container, item) + ';';
});
// Calculating the width/height of the textarea is somewhat tricky. To
// do it right, you have to include the paddings to the sides as well
// (eg. width = width + padding-left, -right). This works well, as
// long as the width of the element is not set or given in pixels. In
// this case and after the textarea is hidden, getCSSProperty(element,
// container, 'width') will still return pixel value. If the element
// has realtiv dimensions (e.g. width='95<percent>')
// getCSSProperty(...) will return pixel values only as long as the
// textarea is visible. After it is hidden getCSSProperty will return
// the relative dimensions as they are set on the element (in the case
// of width, 95<percent>).
// Making the sum of pixel vaules (e.g. padding) and realtive values
// (e.g. <percent>) is not possible. As such the padding styles are
// ignored.
// The complete width is the width of the textarea + the padding
// to the left and right.
var width = getCSSProperty(element, container, 'width') || (element.clientWidth + "px");
var height = getCSSProperty(element, container, 'height') || (element.clientHeight + "px");
style += 'height:' + height + ';width:' + width + ';';
// Set the display property to 'inline-block'.
style += 'display:inline-block;';
container.style.cssText = style;
};
event.addListener(window, 'resize', resizeEvent);
// Call the resizeEvent once, so that the size of the container is
// calculated.
resizeEvent();
// Insert the div container after the element.
parentNode.insertBefore(container, element.nextSibling);
// Override the forms onsubmit function. Set the innerHTML and value
// of the textarea before submitting.
while (parentNode !== document) {
if (parentNode.tagName.toUpperCase() === 'FORM') {
var oldSumit = parentNode.onsubmit;
// Override the onsubmit function of the form.
parentNode.onsubmit = function(evt) {
element.value = getValue();
// If there is a onsubmit function already, then call
// it with the current context and pass the event.
if (oldSumit) {
oldSumit.call(this, evt);
}
};
break;
}
parentNode = parentNode.parentNode;
}
return container;
}
exports.transformTextarea = function(element, options) {
var isFocused = element.autofocus || document.activeElement == element;
var session;
var container = setupContainer(element, function() {
return session.getValue();
});
// Hide the element.
element.style.display = 'none';
container.style.background = 'white';
//
var editorDiv = document.createElement("div");
applyStyles(editorDiv, {
top: "0px",
left: "0px",
right: "0px",
bottom: "0px",
border: "1px solid gray",
position: "absolute"
});
container.appendChild(editorDiv);
var settingOpener = document.createElement("div");
applyStyles(settingOpener, {
position: "absolute",
right: "0px",
bottom: "0px",
cursor: "nw-resize",
border: "solid 9px",
borderColor: "lightblue gray gray #ceade6",
zIndex: 101
});
var settingDiv = document.createElement("div");
var settingDivStyles = {
top: "0px",
left: "20%",
right: "0px",
bottom: "0px",
position: "absolute",
padding: "5px",
zIndex: 100,
color: "white",
display: "none",
overflow: "auto",
fontSize: "14px",
boxShadow: "-5px 2px 3px gray"
};
if (!UA.isOldIE) {
settingDivStyles.backgroundColor = "rgba(0, 0, 0, 0.6)";
} else {
settingDivStyles.backgroundColor = "#333";
}
applyStyles(settingDiv, settingDivStyles);
container.appendChild(settingDiv);
options = options || exports.defaultOptions;
// Power up ace on the textarea:
var editor = ace.edit(editorDiv);
session = editor.getSession();
session.setValue(element.value || element.innerHTML);
if (isFocused)
editor.focus();
// Add the settingPanel opener to the editor's div.
container.appendChild(settingOpener);
// Create the API.
setupApi(editor, editorDiv, settingDiv, ace, options);
// Create the setting's panel.
setupSettingPanel(settingDiv, settingOpener, editor);
var state = "";
event.addListener(settingOpener, "mousemove", function(e) {
var rect = this.getBoundingClientRect();
var x = e.clientX - rect.left, y = e.clientY - rect.top;
if (x + y < (rect.width + rect.height)/2) {
this.style.cursor = "pointer";
state = "toggle";
} else {
state = "resize";
this.style.cursor = "nw-resize";
}
});
event.addListener(settingOpener, "mousedown", function(e) {
e.preventDefault();
if (state == "toggle") {
editor.setDisplaySettings();
return;
}
container.style.zIndex = "100000";
var rect = container.getBoundingClientRect();
var startX = rect.width + rect.left - e.clientX;
var startY = rect.height + rect.top - e.clientY;
event.capture(settingOpener, function(e) {
container.style.width = e.clientX - rect.left + startX + "px";
container.style.height = e.clientY - rect.top + startY + "px";
editor.resize();
}, function() {});
});
return editor;
};
function setupApi(editor, editorDiv, settingDiv, ace, options) {
function toBool(value) {
return value === "true" || value == true;
}
editor.setDisplaySettings = function(display) {
if (display == null)
display = settingDiv.style.display == "none";
if (display) {
settingDiv.style.display = "block";
settingDiv.hideButton.focus();
editor.on("focus", function onFocus() {
editor.removeListener("focus", onFocus);
settingDiv.style.display = "none";
});
} else {
editor.focus();
}
};
editor.$setOption = editor.setOption;
editor.$getOption = editor.getOption;
editor.setOption = function(key, value) {
switch (key) {
case "mode":
editor.$setOption("mode", "ace/mode/" + value);
break;
case "theme":
editor.$setOption("theme", "ace/theme/" + value);
break;
case "keybindings":
switch (value) {
case "vim":
editor.setKeyboardHandler("ace/keyboard/vim");
break;
case "emacs":
editor.setKeyboardHandler("ace/keyboard/emacs");
break;
default:
editor.setKeyboardHandler(null);
}
break;
case "wrap":
case "fontSize":
editor.$setOption(key, value);
break;
default:
editor.$setOption(key, toBool(value));
}
};
editor.getOption = function(key) {
switch (key) {
case "mode":
return editor.$getOption("mode").substr("ace/mode/".length);
break;
case "theme":
return editor.$getOption("theme").substr("ace/theme/".length);
break;
case "keybindings":
var value = editor.getKeyboardHandler();
switch (value && value.$id) {
case "ace/keyboard/vim":
return "vim";
case "ace/keyboard/emacs":
return "emacs";
default:
return "ace";
}
break;
default:
return editor.$getOption(key);
}
};
editor.setOptions(options);
return editor;
}
function setupSettingPanel(settingDiv, settingOpener, editor) {
var BOOL = null;
var desc = {
mode: "Mode:",
wrap: "Soft Wrap:",
theme: "Theme:",
fontSize: "Font Size:",
showGutter: "Display Gutter:",
keybindings: "Keyboard",
showPrintMargin: "Show Print Margin:",
useSoftTabs: "Use Soft Tabs:",
showInvisibles: "Show Invisibles"
};
var optionValues = {
mode: {
text: "Plain",
javascript: "JavaScript",
xml: "XML",
html: "HTML",
css: "CSS",
scss: "SCSS",
python: "Python",
php: "PHP",
java: "Java",
ruby: "Ruby",
c_cpp: "C/C++",
coffee: "CoffeeScript",
json: "json",
perl: "Perl",
clojure: "Clojure",
ocaml: "OCaml",
csharp: "C#",
haxe: "haXe",
svg: "SVG",
textile: "Textile",
groovy: "Groovy",
liquid: "Liquid",
Scala: "Scala"
},
theme: {
clouds: "Clouds",
clouds_midnight: "Clouds Midnight",
cobalt: "Cobalt",
crimson_editor: "Crimson Editor",
dawn: "Dawn",
gob: "Green on Black",
eclipse: "Eclipse",
idle_fingers: "Idle Fingers",
kr_theme: "Kr Theme",
merbivore: "Merbivore",
merbivore_soft: "Merbivore Soft",
mono_industrial: "Mono Industrial",
monokai: "Monokai",
pastel_on_dark: "Pastel On Dark",
solarized_dark: "Solarized Dark",
solarized_light: "Solarized Light",
textmate: "Textmate",
twilight: "Twilight",
vibrant_ink: "Vibrant Ink"
},
showGutter: BOOL,
fontSize: {
"10px": "10px",
"11px": "11px",
"12px": "12px",
"14px": "14px",
"16px": "16px"
},
wrap: {
off: "Off",
40: "40",
80: "80",
free: "Free"
},
keybindings: {
ace: "ace",
vim: "vim",
emacs: "emacs"
},
showPrintMargin: BOOL,
useSoftTabs: BOOL,
showInvisibles: BOOL
};
var table = [];
table.push("<table><tr><th>Setting</th><th>Value</th></tr>");
function renderOption(builder, option, obj, cValue) {
if (!obj) {
builder.push(
"<input type='checkbox' title='", option, "' ",
cValue + "" == "true" ? "checked='true'" : "",
"'></input>"
);
return;
}
builder.push("<select title='" + option + "'>");
for (var value in obj) {
builder.push("<option value='" + value + "' ");
if (cValue == value) {
builder.push(" selected ");
}
builder.push(">",
obj[value],
"</option>");
}
builder.push("</select>");
}
for (var option in exports.defaultOptions) {
table.push("<tr><td>", desc[option], "</td>");
table.push("<td>");
renderOption(table, option, optionValues[option], editor.getOption(option));
table.push("</td></tr>");
}
table.push("</table>");
settingDiv.innerHTML = table.join("");
var onChange = function(e) {
var select = e.currentTarget;
editor.setOption(select.title, select.value);
};
var onClick = function(e) {
var cb = e.currentTarget;
editor.setOption(cb.title, cb.checked);
};
var selects = settingDiv.getElementsByTagName("select");
for (var i = 0; i < selects.length; i++)
selects[i].onchange = onChange;
var cbs = settingDiv.getElementsByTagName("input");
for (var i = 0; i < cbs.length; i++)
cbs[i].onclick = onClick;
var button = document.createElement("input");
button.type = "button";
button.value = "Hide";
event.addListener(button, "click", function() {
editor.setDisplaySettings(false);
});
settingDiv.appendChild(button);
settingDiv.hideButton = button;
}
// Default startup options.
exports.defaultOptions = {
mode: "javascript",
theme: "textmate",
wrap: "off",
fontSize: "12px",
showGutter: "false",
keybindings: "ace",
showPrintMargin: "false",
useSoftTabs: "true",
showInvisibles: "false"
};