diff options
author | John McLear <john@mclear.co.uk> | 2012-11-06 11:56:19 +0000 |
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committer | John McLear <john@mclear.co.uk> | 2012-11-06 11:56:19 +0000 |
commit | f68bdde0c1d4e77b8a3446022bcf85ce17361cb6 (patch) | |
tree | 4c34122cf2f4a33b19f4c5535e0203715ea8f89c /src/static | |
parent | 28bcdcec251316e349546f8c81c42b4dfb4b8b6e (diff) | |
download | etherpad-lite-f68bdde0c1d4e77b8a3446022bcf85ce17361cb6.zip |
resolve #1131 make textarea resize
Diffstat (limited to 'src/static')
-rw-r--r-- | src/static/js/admin/jquery.autosize.js | 180 | ||||
-rw-r--r-- | src/static/js/admin/settings.js | 2 |
2 files changed, 182 insertions, 0 deletions
diff --git a/src/static/js/admin/jquery.autosize.js b/src/static/js/admin/jquery.autosize.js new file mode 100644 index 00000000..8c8ab1a8 --- /dev/null +++ b/src/static/js/admin/jquery.autosize.js @@ -0,0 +1,180 @@ +// Autosize 1.13 - jQuery plugin for textareas
+// (c) 2012 Jack Moore - jacklmoore.com
+// license: www.opensource.org/licenses/mit-license.php
+
+(function ($) {
+ var
+ defaults = {
+ className: 'autosizejs',
+ append: "",
+ callback: false
+ },
+ hidden = 'hidden',
+ borderBox = 'border-box',
+ lineHeight = 'lineHeight',
+ copy = '<textarea tabindex="-1" style="position:absolute; top:-9999px; left:-9999px; right:auto; bottom:auto; -moz-box-sizing:content-box; -webkit-box-sizing:content-box; box-sizing:content-box; word-wrap:break-word; height:0 !important; min-height:0 !important; overflow:hidden;"/>',
+ // line-height is omitted because IE7/IE8 doesn't return the correct value.
+ copyStyle = [
+ 'fontFamily',
+ 'fontSize',
+ 'fontWeight',
+ 'fontStyle',
+ 'letterSpacing',
+ 'textTransform',
+ 'wordSpacing',
+ 'textIndent'
+ ],
+ oninput = 'oninput',
+ onpropertychange = 'onpropertychange',
+ test = $(copy)[0];
+
+ // For testing support in old FireFox
+ test.setAttribute(oninput, "return");
+
+ if ($.isFunction(test[oninput]) || onpropertychange in test) {
+
+ // test that line-height can be accurately copied to avoid
+ // incorrect value reporting in old IE and old Opera
+ $(test).css(lineHeight, '99px');
+ if ($(test).css(lineHeight) === '99px') {
+ copyStyle.push(lineHeight);
+ }
+
+ $.fn.autosize = function (options) {
+ options = $.extend({}, defaults, options || {});
+
+ return this.each(function () {
+ var
+ ta = this,
+ $ta = $(ta),
+ mirror,
+ minHeight = $ta.height(),
+ maxHeight = parseInt($ta.css('maxHeight'), 10),
+ active,
+ i = copyStyle.length,
+ resize,
+ boxOffset = 0,
+ value = ta.value,
+ callback = $.isFunction(options.callback);
+
+ if ($ta.css('box-sizing') === borderBox || $ta.css('-moz-box-sizing') === borderBox || $ta.css('-webkit-box-sizing') === borderBox){
+ boxOffset = $ta.outerHeight() - $ta.height();
+ }
+
+ if ($ta.data('mirror') || $ta.data('ismirror')) {
+ // if autosize has already been applied, exit.
+ // if autosize is being applied to a mirror element, exit.
+ return;
+ } else {
+ mirror = $(copy).data('ismirror', true).addClass(options.className)[0];
+
+ resize = $ta.css('resize') === 'none' ? 'none' : 'horizontal';
+
+ $ta.data('mirror', $(mirror)).css({
+ overflow: hidden,
+ overflowY: hidden,
+ wordWrap: 'break-word',
+ resize: resize
+ });
+ }
+
+ // Opera returns '-1px' when max-height is set to 'none'.
+ maxHeight = maxHeight && maxHeight > 0 ? maxHeight : 9e4;
+
+ // Using mainly bare JS in this function because it is going
+ // to fire very often while typing, and needs to very efficient.
+ function adjust() {
+ var height, overflow, original;
+
+ // the active flag keeps IE from tripping all over itself. Otherwise
+ // actions in the adjust function will cause IE to call adjust again.
+ if (!active) {
+ active = true;
+ mirror.value = ta.value + options.append;
+ mirror.style.overflowY = ta.style.overflowY;
+ original = parseInt(ta.style.height,10);
+
+ // Update the width in case the original textarea width has changed
+ mirror.style.width = $ta.css('width');
+
+ // Needed for IE to reliably return the correct scrollHeight
+ mirror.scrollTop = 0;
+
+ // Set a very high value for scrollTop to be sure the
+ // mirror is scrolled all the way to the bottom.
+ mirror.scrollTop = 9e4;
+
+ height = mirror.scrollTop;
+ overflow = hidden;
+ if (height > maxHeight) {
+ height = maxHeight;
+ overflow = 'scroll';
+ } else if (height < minHeight) {
+ height = minHeight;
+ }
+ height += boxOffset;
+ ta.style.overflowY = overflow;
+
+ if (original !== height) {
+ ta.style.height = height + 'px';
+ if (callback) {
+ options.callback.call(ta);
+ }
+ }
+
+ // This small timeout gives IE a chance to draw it's scrollbar
+ // before adjust can be run again (prevents an infinite loop).
+ setTimeout(function () {
+ active = false;
+ }, 1);
+ }
+ }
+
+ // mirror is a duplicate textarea located off-screen that
+ // is automatically updated to contain the same text as the
+ // original textarea. mirror always has a height of 0.
+ // This gives a cross-browser supported way getting the actual
+ // height of the text, through the scrollTop property.
+ while (i--) {
+ mirror.style[copyStyle[i]] = $ta.css(copyStyle[i]);
+ }
+
+ $('body').append(mirror);
+
+ if (onpropertychange in ta) {
+ if (oninput in ta) {
+ // Detects IE9. IE9 does not fire onpropertychange or oninput for deletions,
+ // so binding to onkeyup to catch most of those occassions. There is no way that I
+ // know of to detect something like 'cut' in IE9.
+ ta[oninput] = ta.onkeyup = adjust;
+ } else {
+ // IE7 / IE8
+ ta[onpropertychange] = adjust;
+ }
+ } else {
+ // Modern Browsers
+ ta[oninput] = adjust;
+
+ // The textarea overflow is now hidden. But Chrome doesn't reflow the text after the scrollbars are removed.
+ // This is a hack to get Chrome to reflow it's text.
+ ta.value = '';
+ ta.value = value;
+ }
+
+ $(window).resize(adjust);
+
+ // Allow for manual triggering if needed.
+ $ta.bind('autosize', adjust);
+
+ // Call adjust in case the textarea already contains text.
+ adjust();
+ });
+ };
+ } else {
+ // Makes no changes for older browsers (FireFox3- and Safari4-)
+ $.fn.autosize = function (callback) {
+ return this;
+ };
+ }
+
+}(jQuery));
\ No newline at end of file diff --git a/src/static/js/admin/settings.js b/src/static/js/admin/settings.js index 0c9edb1a..ebe4a25a 100644 --- a/src/static/js/admin/settings.js +++ b/src/static/js/admin/settings.js @@ -18,6 +18,7 @@ $(document).ready(function () { { $('.settings').append(settings.results); $('.settings').focus(); + $('.settings').autosize(); } else{ alert("YOUR JSON IS BAD AND YOU SHOULD FEEL BAD"); @@ -66,3 +67,4 @@ function isJSONClean(data){ return true; } } + |