elm/libraries/Native/Text.js
Evan Czaplicki 3fe9e2470c Fix indent
2013-09-01 22:20:07 -07:00

137 lines
No EOL
4.2 KiB
JavaScript

Elm.Native.Text = function(elm) {
'use strict';
elm.Native = elm.Native || {};
if (elm.Native.Text) return elm.Native.Text;
var JS = Elm.JavaScript(elm);
var htmlHeight = Elm.Native.Utils(elm).htmlHeight;
var Color = Elm.Native.Color(elm);
var Element = Elm.Graphics.Element(elm);
var show = Elm.Native.Show(elm).show;
function makeSpaces(s) {
if (s.length == 0) { return s; }
var arr = s.split('');
if (arr[0] == ' ') { arr[0] = " " }
for (var i = arr.length; --i; ) {
if (arr[i][0] == ' ' && arr[i-1] == ' ') {
arr[i-1] = arr[i-1] + arr[i];
arr[i] = '';
}
}
for (var i = arr.length; i--; ) {
if (arr[i].length > 1 && arr[i][0] == ' ') {
var spaces = arr[i].split('');
for (var j = spaces.length - 2; j >= 0; j -= 2) {
spaces[j] = ' ';
}
arr[i] = spaces.join('');
}
}
arr = arr.join('');
if (arr[arr.length-1] === " ") {
return arr.slice(0,-1) + ' ';
}
return arr;
}
function properEscape(str) {
if (str.length == 0) return str;
str = str //.replace(/&/g, "&")
.replace(/"/g, /*"*/ '"')
.replace(/'/g, /*'*/ "'")
.replace(/</g, "&#60;")
.replace(/>/g, "&#62;")
.replace(/\n/g, "<br/>");
var arr = str.split('<br/>');
for (var i = arr.length; i--; ) {
arr[i] = makeSpaces(arr[i]);
}
return arr.join('<br/>');
}
function toText(str) { return properEscape(JS.fromString(str)); }
function addTag(tag) { return function(text) {
return '<' + tag + ' style="padding:0;margin:0">' + text + '</' + tag + '>';
}
}
function addStyle(style, value, text) {
return "<span style='" + style + ":" + value + "'>" + text + "</span>";
}
function typeface(name, text) {
return addStyle('font-family', JS.fromString(name), text);
}
function monospace(text) {
return addStyle('font-family', 'monospace', text);
}
function size(px, text) { return addStyle('font-size', px + 'px', text) }
var header = addTag('h1');
function height(h, text) { return addStyle('font-size', h+'px', text) }
function italic(text) { return addStyle('font-style', 'italic', text) }
var bold = addTag('b');
function extract(c) {
if (c._3 === 1) { return 'rgb(' + c._0 + ',' + c._1 + ',' + c._2 + ')'; }
return 'rgba(' + c._0 + ',' + c._1 + ',' + c._2 + ',' + c._3 + ')';
}
function color(c, text) {
return addStyle('color', extract(c), text);
}
function underline(text) { return addStyle('text-decoration', 'underline', text) }
function overline(text) { return addStyle('text-decoration', 'overline', text) }
function strikeThrough(text) {
return addStyle('text-decoration', 'line-through', text);
}
function link(href, text) {
return "<a href='" + toText(href) + "'>" + text + "</a>";
}
function position(pos) {
return function(text) {
var e = {ctor:'RawHtml',
_0: '<div style="padding:0;margin:0;text-align:' +
pos + '">' + text + '</div>'
};
var p = A2(htmlHeight, 0, text);
return A3(Element.newElement, p._0, p._1, e);
}
}
function asText(v) {
return position('left')(monospace(toText(show(v))));
}
function plainText(v) {
return position('left')(toText(v));
}
return elm.Native.Text = {
toText: toText,
header : header,
height : F2(height),
italic : italic,
bold : bold,
underline : underline,
overline : overline,
strikeThrough : strikeThrough,
monospace : monospace,
typeface : F2(typeface),
color : F2(color),
link : F2(link),
justified : position('justify'),
centered : position('center'),
righted : position('right'),
text : position('left'),
plainText : plainText,
asText : asText
};
};