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<title>[32816] trunk/src/wp-includes/js/tinymce/plugins/wordpress/plugin.js: TinyMCE: improve reposition method inline toolbars</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/32816">32816</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/32816","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>iseulde</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2015-06-17 04:41:59 +0000 (Wed, 17 Jun 2015)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>TinyMCE: improve reposition method inline toolbars

* Make sure the toolbar does not overlap the target, unless it is higher than half the visible editor area's height.
* Allow the toolbar to have the preference to position itself above or below the target.
* Cache DOM lookups.
* Simplify the logic and fix various positioning issues.

See <a href="https://core.trac.wordpress.org/ticket/32604">#32604</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesjstinymcepluginswordpresspluginjs">trunk/src/wp-includes/js/tinymce/plugins/wordpress/plugin.js</a></li>
</ul>

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<h3>Diff</h3>
<a id="trunksrcwpincludesjstinymcepluginswordpresspluginjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/js/tinymce/plugins/wordpress/plugin.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/js/tinymce/plugins/wordpress/plugin.js      2015-06-17 04:14:06 UTC (rev 32815)
+++ trunk/src/wp-includes/js/tinymce/plugins/wordpress/plugin.js        2015-06-17 04:41:59 UTC (rev 32816)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -447,9 +447,21 @@
</span><span class="cx" style="display: block; padding: 0 10px">                var Factory = tinymce.ui.Factory,
</span><span class="cx" style="display: block; padding: 0 10px">                        settings = editor.settings,
</span><span class="cx" style="display: block; padding: 0 10px">                        currentToolbar,
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        currentSelection;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 currentSelection,
+                       wpAdminbar = document.getElementById( 'wpadminbar' ),
+                       mceIframe, mceToolbar, mceStatusbar, wpStatusbar;
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                function create( buttons ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         editor.on( 'init', function() {
+                       mceIframe = document.getElementById( editor.id + '_ifr' );
+                       mceToolbar = tinymce.$( '.mce-toolbar-grp', editor.getContainer() )[0];
+                       mceStatusbar = tinymce.$( '.mce-statusbar', editor.getContainer() )[0];
+
+                       if ( editor.id === 'content' ) {
+                               wpStatusbar = document.getElementById( 'post-status-info' );
+                       }
+               } );
+
+               function create( buttons, bottom ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                         var toolbar,
</span><span class="cx" style="display: block; padding: 0 10px">                                toolbarItems = [],
</span><span class="cx" style="display: block; padding: 0 10px">                                buttonGroup;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -573,107 +585,83 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                } ]
</span><span class="cx" style="display: block; padding: 0 10px">                        } );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        toolbar.bottom = bottom;
+
</ins><span class="cx" style="display: block; padding: 0 10px">                         function hide() {
</span><span class="cx" style="display: block; padding: 0 10px">                                toolbar.hide();
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                        function reposition() {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                var top, left, minTop, className,
-                                       windowPos, adminbar, mceToolbar, boundary,
-                                       boundaryMiddle, boundaryVerticalMiddle, spaceTop,
-                                       spaceBottom, windowWidth, toolbarWidth, toolbarHalf,
-                                       iframe, iframePos, iframeWidth, iframeHeigth,
-                                       toolbarNodeHeight, verticalSpaceNeeded,
-                                       toolbarNode = this.getEl(),
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         var scrollX = window.pageXOffset || document.documentElement.scrollLeft,
+                                       scrollY = window.pageYOffset || document.documentElement.scrollTop,
+                                       windowWidth = window.innerWidth,
+                                       windowHeight = window.innerHeight,
+                                       iframeRect = mceIframe.getBoundingClientRect(),
+                                       toolbar = this.getEl(),
+                                       toolbarWidth = toolbar.offsetWidth,
+                                       toolbarHeight = toolbar.offsetHeight,
+                                       selection = currentSelection.getBoundingClientRect(),
+                                       selectionMiddle = ( selection.left + selection.right ) / 2,
</ins><span class="cx" style="display: block; padding: 0 10px">                                         buffer = 5,
</span><span class="cx" style="display: block; padding: 0 10px">                                        margin = 8,
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        adminbarHeight = 0;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 spaceNeeded = toolbarHeight + margin + buffer,
+                                       wpAdminbarBottom = wpAdminbar ? wpAdminbar.getBoundingClientRect().bottom : 0,
+                                       mceToolbarBottom = mceToolbar ? mceToolbar.getBoundingClientRect().bottom : 0,
+                                       mceStatusbarTop = mceStatusbar ? windowHeight - mceStatusbar.getBoundingClientRect().top : 0,
+                                       wpStatusbarTop = wpStatusbar ? windowHeight - wpStatusbar.getBoundingClientRect().top : 0,
+                                       blockedTop = Math.max( 0, wpAdminbarBottom, mceToolbarBottom, iframeRect.top ),
+                                       blockedBottom = Math.max( 0, mceStatusbarTop, wpStatusbarTop, windowHeight - iframeRect.bottom ),
+                                       spaceTop = selection.top + iframeRect.top - blockedTop,
+                                       spaceBottom = windowHeight - iframeRect.top - selection.bottom - blockedBottom,
+                                       editorHeight = windowHeight - blockedTop - blockedBottom,
+                                       className = '',
+                                       top, left;
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                if ( ! currentSelection ) {
-                                       return;
-                               }
-
-                               windowPos = window.pageYOffset || document.documentElement.scrollTop;
-                               adminbar = tinymce.$( '#wpadminbar' )[0];
-                               mceToolbar = tinymce.$( '.mce-toolbar-grp', editor.getContainer() )[0];
-                               boundary = currentSelection.getBoundingClientRect();
-                               boundaryMiddle = ( boundary.left + boundary.right ) / 2;
-                               boundaryVerticalMiddle = ( boundary.top + boundary.bottom ) / 2;
-                               spaceTop = boundary.top;
-                               spaceBottom = iframeHeigth - boundary.bottom;
-                               windowWidth = window.innerWidth;
-                               toolbarWidth = toolbarNode.offsetWidth;
-                               toolbarHalf = toolbarWidth / 2;
-                               iframe = document.getElementById( editor.id + '_ifr' );
-                               iframePos = DOM.getPos( iframe );
-                               iframeWidth = iframe.offsetWidth;
-                               iframeHeigth = iframe.offsetHeight;
-                               toolbarNodeHeight = toolbarNode.offsetHeight;
-                               verticalSpaceNeeded = toolbarNodeHeight + margin + buffer;
-
-                               if ( spaceTop >= verticalSpaceNeeded ) {
-                                       className = ' mce-arrow-down';
-                                       top = boundary.top + iframePos.y - toolbarNodeHeight - margin;
-                               } else if ( spaceBottom >= verticalSpaceNeeded ) {
-                                       className = ' mce-arrow-up';
-                                       top = boundary.bottom + iframePos.y;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         if ( this.bottom ) {
+                                       if ( spaceBottom >= spaceNeeded ) {
+                                               className = ' mce-arrow-up';
+                                               top = selection.bottom + iframeRect.top + scrollY;
+                                       } else if ( spaceTop >= spaceNeeded ) {
+                                               className = ' mce-arrow-down';
+                                               top = selection.top + iframeRect.top + scrollY - toolbarHeight - margin;
+                                       }
</ins><span class="cx" style="display: block; padding: 0 10px">                                 } else {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        top = buffer;
-
-                                       if ( boundaryVerticalMiddle >= verticalSpaceNeeded ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 if ( spaceTop >= spaceNeeded ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                                                 className = ' mce-arrow-down';
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        } else {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                         top = selection.top + iframeRect.top + scrollY - toolbarHeight - margin;
+                                       } else if ( spaceBottom >= spaceNeeded && editorHeight / 2 > selection.bottom + iframeRect.top - blockedTop ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                                                 className = ' mce-arrow-up';
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                                top = selection.bottom + iframeRect.top + scrollY;
</ins><span class="cx" style="display: block; padding: 0 10px">                                         }
</span><span class="cx" style="display: block; padding: 0 10px">                                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                // Make sure the image toolbar is below the main toolbar.
-                               if ( mceToolbar ) {
-                                       minTop = DOM.getPos( mceToolbar ).y + mceToolbar.clientHeight;
-                               } else {
-                                       minTop = iframePos.y;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         if ( typeof top === 'undefined' ) {
+                                       top = scrollY + blockedTop + buffer;
</ins><span class="cx" style="display: block; padding: 0 10px">                                 }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                // Make sure the image toolbar is below the adminbar (if visible) or below the top of the window.
-                               if ( windowPos ) {
-                                       if ( adminbar && adminbar.getBoundingClientRect().top === 0 ) {
-                                               adminbarHeight = adminbar.clientHeight;
-                                       }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         left = selectionMiddle - toolbarWidth / 2 + iframeRect.left + scrollX;
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        if ( windowPos + adminbarHeight > minTop ) {
-                                               minTop = windowPos + adminbarHeight;
-                                       }
-                               }
-
-                               if ( top && minTop && ( minTop + buffer > top ) ) {
-                                       top = minTop + buffer;
-                                       className = '';
-                               }
-
-                               left = boundaryMiddle - toolbarHalf;
-                               left += iframePos.x;
-
-                               if ( boundary.left < 0 || boundary.right > iframeWidth ) {
-                                       left = iframePos.x + ( iframeWidth - toolbarWidth ) / 2;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         if ( selection.left < 0 || selection.right > iframeRect.width ) {
+                                       left = iframeRect.left + scrollX + ( iframeRect.width - toolbarWidth ) / 2;
</ins><span class="cx" style="display: block; padding: 0 10px">                                 } else if ( toolbarWidth >= windowWidth ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                        className += ' mce-arrow-full';
</span><span class="cx" style="display: block; padding: 0 10px">                                        left = 0;
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                } else if ( ( left < 0 && boundary.left + toolbarWidth > windowWidth ) ||
-                                       ( left + toolbarWidth > windowWidth && boundary.right - toolbarWidth < 0 ) ) {
-
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         } else if ( ( left < 0 && selection.left + toolbarWidth > windowWidth ) || ( left + toolbarWidth > windowWidth && selection.right - toolbarWidth < 0 ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                                         left = ( windowWidth - toolbarWidth ) / 2;
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                } else if ( left < iframePos.x ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         } else if ( left < iframeRect.left + scrollX ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                                         className += ' mce-arrow-left';
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        left = boundary.left + iframePos.x;
-                               } else if ( left + toolbarWidth > iframeWidth + iframePos.x ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 left = selection.left + iframeRect.left + scrollX;
+                               } else if ( left + toolbarWidth > iframeRect.width + iframeRect.left + scrollX ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                                         className += ' mce-arrow-right';
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        left = boundary.right - toolbarWidth + iframePos.x;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 left = selection.right - toolbarWidth + iframeRect.left + scrollX;
</ins><span class="cx" style="display: block; padding: 0 10px">                                 }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                toolbarNode.className = toolbarNode.className.replace( / ?mce-arrow-[\w]+/g, '' );
-                               toolbarNode.className += className;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         toolbar.className = toolbar.className.replace( / ?mce-arrow-[\w]+/g, '' ) + className;
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                DOM.setStyles( toolbarNode, { 'left': left, 'top': top } );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         DOM.setStyles( toolbar, {
+                                       'left': left,
+                                       'top': top
+                               } );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                                return this;
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span></span></pre>
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