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<title>[26564] trunk/src/wp-admin: Auto-resize the Quick Draft textarea.</title>
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<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/26564">26564</a></dd>
<dt>Author</dt> <dd>helen</dd>
<dt>Date</dt> <dd>2013-12-03 17:34:46 +0000 (Tue, 03 Dec 2013)</dd>
</dl>
<h3>Log Message</h3>
<pre>Auto-resize the Quick Draft textarea. props lessbloat, markjaquith, helen. fixes <a href="http://core.trac.wordpress.org/ticket/26053">#26053</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadmincsswpadmincss">trunk/src/wp-admin/css/wp-admin.css</a></li>
<li><a href="#trunksrcwpadminjsdashboardjs">trunk/src/wp-admin/js/dashboard.js</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadmincsswpadmincss"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/css/wp-admin.css (26563 => 26564)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/css/wp-admin.css 2013-12-03 17:31:33 UTC (rev 26563)
+++ trunk/src/wp-admin/css/wp-admin.css 2013-12-03 17:34:46 UTC (rev 26564)
</span><span class="lines">@@ -3101,6 +3101,12 @@
</span><span class="cx"> padding: 6px 7px;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+#quick-press textarea#content {
+ min-height: 90px;
+ max-height: 1300px;
+ resize: none;
+}
+
</ins><span class="cx"> /* Dashboard Quick Draft - Drafts list */
</span><span class="cx">
</span><span class="cx"> .js #dashboard_quick_press .drafts {
</span></span></pre></div>
<a id="trunksrcwpadminjsdashboardjs"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/js/dashboard.js (26563 => 26564)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/js/dashboard.js 2013-12-03 17:31:33 UTC (rev 26563)
+++ trunk/src/wp-admin/js/dashboard.js 2013-12-03 17:34:46 UTC (rev 26564)
</span><span class="lines">@@ -2,11 +2,9 @@
</span><span class="cx"> var ajaxWidgets, ajaxPopulateWidgets, quickPressLoad;
</span><span class="cx">
</span><span class="cx"> jQuery(document).ready( function($) {
</span><del>- var $window = $( window ),
- welcomePanel = $( '#welcome-panel' ),
</del><ins>+ var welcomePanel = $( '#welcome-panel' ),
</ins><span class="cx"> welcomePanelHide = $('#wp_welcome_panel-hide'),
</span><del>- updateWelcomePanel,
- metaboxHolder = $( '.metabox-holder' );
</del><ins>+ updateWelcomePanel;
</ins><span class="cx">
</span><span class="cx"> updateWelcomePanel = function( visible ) {
</span><span class="cx"> $.post( ajaxurl, {
</span><span class="lines">@@ -120,6 +118,8 @@
</span><span class="cx"> $('#description-wrap, p.submit').slideDown(200);
</span><span class="cx"> wpActiveEditor = 'content';
</span><span class="cx"> });
</span><ins>+
+ autoResizeTextarea();
</ins><span class="cx"> };
</span><span class="cx"> quickPressLoad();
</span><span class="cx">
</span><span class="lines">@@ -131,4 +131,61 @@
</span><span class="cx"> e.preventDefault();
</span><span class="cx"> });
</span><span class="cx">
</span><ins>+ function autoResizeTextarea() {
+ // Add a hidden div. We'll copy over the text from the textarea to measure its height.
+ $('body').append( '<div class="quick-draft-textarea-clone" style="display: none;"></div>' );
+
+ var clone = $('.quick-draft-textarea-clone'),
+ editor = $('#content'),
+ editorHeight = editor.height(),
+ // 100px roughly accounts for browser chrome and allows the
+ // save draft button to show on-screen at the same time.
+ editorMaxHeight = $(window).height() - 100;
+
+ // Match up textarea and clone div as much as possible.
+ // Padding cannot be reliably retrieved using shorthand in all browsers.
+ clone.css({
+ 'font-family': editor.css('font-family'),
+ 'font-size': editor.css('font-size'),
+ 'line-height': editor.css('line-height'),
+ 'padding-bottom': editor.css('paddingBottom'),
+ 'padding-left': editor.css('paddingLeft'),
+ 'padding-right': editor.css('paddingRight'),
+ 'padding-top': editor.css('paddingTop'),
+ 'white-space': 'pre-wrap',
+ 'word-wrap': 'break-word',
+ 'display': 'none'
+ });
+
+ // propertychange is for IE < 9
+ editor.on('focus input propertychange', function() {
+ var $this = $(this),
+ // is to ensure that the height of a final trailing newline is included.
+ textareaContent = $this.val().replace(/\n/g, '<br>') + ' ',
+ // 2px is for border-top & border-bottom
+ cloneHeight = clone.css('width', $this.css('width')).html(textareaContent).outerHeight() + 2;
+
+ // Default to having scrollbars
+ editor.css('overflow-y', 'auto');
+
+ // Only change the height if it has indeed changed and both heights are below the max.
+ if ( cloneHeight === editorHeight || ( cloneHeight >= editorMaxHeight && editorHeight >= editorMaxHeight ) ) {
+ return;
+ }
+
+ // Don't allow editor to exceed height of window.
+ // This is also bound in CSS to a max-height of 1300px to be extra safe.
+ if ( cloneHeight > editorMaxHeight ) {
+ editorHeight = editorMaxHeight;
+ } else {
+ editorHeight = cloneHeight;
+ }
+
+ // No scrollbars as we change height
+ editor.css('overflow-y', 'hidden');
+
+ $this.css('height', editorHeight + 'px');
+ });
+ }
+
</ins><span class="cx"> } );
</span></span></pre>
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