388 lines
11 KiB
JavaScript
388 lines
11 KiB
JavaScript
/* global tinymce */
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window.wp = window.wp || {};
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jQuery( document ).ready( function($) {
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var $window = $( window ),
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$document = $( document ),
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$adminBar = $( '#wpadminbar' ),
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$contentWrap = $( '#wp-content-wrap' ),
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$tools = $( '#wp-content-editor-tools' ),
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$visualTop,
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$visualEditor,
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$textTop = $( '#ed_toolbar' ),
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$textEditor = $( '#content' ),
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$textEditorClone = $( '<div id="content-textarea-clone"></div>' ),
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$bottom = $( '#post-status-info' ),
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$statusBar,
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buffer = 200,
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fullscreen = window.wp.editor && window.wp.editor.fullscreen,
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editorInstance,
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fixedTop = false,
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fixedBottom = false;
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$textEditorClone.insertAfter( $textEditor );
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// use to enable/disable
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$contentWrap.addClass( 'wp-editor-expand' );
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$( '#content-resize-handle' ).hide();
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$textEditorClone.css( {
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'font-family': $textEditor.css( 'font-family' ),
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'font-size': $textEditor.css( 'font-size' ),
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'line-height': $textEditor.css( 'line-height' ),
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'padding': $textEditor.css( 'padding' ),
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'padding-top': 37,
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'white-space': 'pre-wrap',
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'word-wrap': 'break-word'
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} );
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$textEditor.on( 'focus input propertychange', function() {
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textEditorResize();
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} );
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$textEditor.on( 'keyup', function() {
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var range = document.createRange(),
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start = $textEditor[0].selectionStart,
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end = $textEditor[0].selectionEnd,
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textNode = $textEditorClone[0].firstChild,
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windowHeight = $window.height(),
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offset, cursorTop, cursorBottom, editorTop, editorBottom;
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if ( start && end && start !== end ) {
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return;
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}
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range.setStart( textNode, start );
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range.setEnd( textNode, end + 1 );
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offset = range.getBoundingClientRect();
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if ( ! offset.height ) {
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return;
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}
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cursorTop = offset.top;
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cursorBottom = cursorTop + offset.height;
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editorTop = $adminBar.outerHeight() + $textTop.outerHeight();
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editorBottom = windowHeight - $bottom.outerHeight();
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if ( cursorTop < editorTop || cursorBottom > editorBottom ) {
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window.scrollTo( window.pageXOffset, cursorTop + window.pageYOffset - windowHeight / 2 );
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}
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} );
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function textEditorResize() {
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if ( editorInstance && ! editorInstance.isHidden() ) {
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return;
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}
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var hiddenHeight = $textEditorClone.width( $textEditor.width() ).text( $textEditor.val() + ' ' ).height(),
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textEditorHeight = $textEditor.height();
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if ( hiddenHeight < 300 ) {
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hiddenHeight = 300;
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}
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if ( hiddenHeight === textEditorHeight ) {
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return;
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}
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$textEditor.height( hiddenHeight );
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adjust( 'resize' );
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}
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// We need to wait for TinyMCE to initialize.
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$document.on( 'tinymce-editor-init.editor-expand', function( event, editor ) {
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// Make sure it's the main editor.
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if ( editor.id !== 'content' ) {
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return;
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}
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// Copy the editor instance.
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editorInstance = editor;
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// Resizing will be handled by the autoresize plugin.
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editor.theme.resizeTo = function() {};
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// Set the minimum height to the initial viewport height.
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editor.settings.autoresize_min_height = 300;
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// Get the necessary UI elements.
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$visualTop = $contentWrap.find( '.mce-toolbar-grp' );
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$visualEditor = $contentWrap.find( '.mce-edit-area' );
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$statusBar = $contentWrap.find( '.mce-statusbar' ).filter( ':visible' );
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// Adjust when switching editor modes.
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editor.on( 'show', function() {
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setTimeout( function() {
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editor.execCommand( 'wpAutoResize' );
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adjust( 'resize' );
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}, 200 );
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} );
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// Make sure the cursor is always visible.
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// This is not only necessary to keep the cursor between the toolbars,
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// but also to scroll the window when the cursor moves out of the viewport to a wpview.
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// Setting a buffer > 0 will prevent the browser default.
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// Some browsers will scroll to the middle,
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// others to the top/bottom of the *window* when moving the cursor out of the viewport.
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editor.on( 'keyup', function( event ) {
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var VK = tinymce.util.VK,
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key = event.keyCode,
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offset = getCursorOffset(),
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windowHeight = $window.height(),
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buffer = 10,
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cursorTop, cursorBottom, editorTop, editorBottom;
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if ( ! offset ) {
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return;
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}
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cursorTop = offset.top + editor.getContentAreaContainer().getElementsByTagName( 'iframe' )[0].getBoundingClientRect().top;
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cursorBottom = cursorTop + offset.height;
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cursorTop = cursorTop - buffer;
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cursorBottom = cursorBottom + buffer;
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editorTop = $adminBar.outerHeight() + $tools.outerHeight() + $visualTop.outerHeight();
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editorBottom = windowHeight - $bottom.outerHeight();
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if ( cursorTop < editorTop && ( key === VK.UP || key === VK.LEFT || key === VK.BACKSPACE ) ) {
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window.scrollTo( window.pageXOffset, cursorTop + window.pageYOffset - editorTop );
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} else if ( cursorBottom > editorBottom ) {
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window.scrollTo( window.pageXOffset, cursorBottom + window.pageYOffset - editorBottom );
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}
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} );
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function getCursorOffset() {
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var selection = editor.selection,
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node = selection.getNode(),
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range = selection.getRng(),
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view, clone, offset;
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if ( tinymce.Env.ie && tinymce.Env.ie < 9 ) {
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return;
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}
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if ( editor.plugins.wpview && ( view = editor.plugins.wpview.getView( node ) ) ) {
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offset = view.getBoundingClientRect();
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} else if ( selection.isCollapsed() ) {
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clone = range.cloneRange();
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if ( clone.startContainer.length > 1 ) {
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if ( clone.startContainer.length > clone.endOffset ) {
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clone.setEnd( clone.startContainer, clone.endOffset + 1 );
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} else {
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clone.setStart( clone.startContainer, clone.endOffset - 1 );
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}
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selection.setRng( clone );
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offset = selection.getRng().getBoundingClientRect();
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selection.setRng( range );
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} else {
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offset = node.getBoundingClientRect();
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}
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} else {
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offset = range.getBoundingClientRect();
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}
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if ( ! offset.height ) {
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return;
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}
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return offset;
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}
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editor.on( 'hide', function() {
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textEditorResize();
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adjust( 'resize' );
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} );
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// Adjust when the editor resizes.
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editor.on( 'nodechange setcontent keyup FullscreenStateChanged', function() {
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adjust( 'resize' );
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} );
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editor.on( 'wp-toolbar-toggle', function() {
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$visualEditor.css( {
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paddingTop: $visualTop.outerHeight()
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} );
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} );
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// And adjust "immediately".
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// Allow some time to load CSS etc.
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setTimeout( function() {
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$visualEditor.css( {
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paddingTop: $visualTop.outerHeight()
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} );
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adjust( 'resize' );
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}, 500 );
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} );
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// Adjust when the window is scrolled or resized.
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$window.on( 'scroll resize', function( event ) {
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adjust( event.type );
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} );
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// Adjust when exiting fullscreen mode.
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fullscreen && fullscreen.pubsub.subscribe( 'hidden', function() {
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adjust( 'resize' );
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} );
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// Adjust when collapsing the menu.
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$document.on( 'wp-collapse-menu.editor-expand', function() {
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adjust( 'resize' );
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} )
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// Adjust when changing the columns.
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.on( 'postboxes-columnchange.editor-expand', function() {
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adjust( 'resize' );
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} )
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// Adjust when changing the body class.
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.on( 'editor-classchange.editor-expand', function() {
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adjust( 'resize' );
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} );
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// Adjust the toolbars based on the active editor mode.
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function adjust( eventType ) {
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// Make sure we're not in fullscreen mode.
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if ( fullscreen && fullscreen.settings.visible ) {
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return;
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}
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var bottomHeight = $bottom.outerHeight(),
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windowPos = $window.scrollTop(),
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windowHeight = $window.height(),
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windowWidth = $window.width(),
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adminBarHeight = windowWidth > 600 ? $adminBar.height() : 0,
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$top, $editor, visual,
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toolsHeight, topPos, topHeight, editorPos, editorHeight, editorWidth, statusBarHeight;
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// Visual editor.
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if ( editorInstance && ! editorInstance.isHidden() ) {
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$top = $visualTop;
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$editor = $visualEditor;
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visual = true;
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// Doesn't hide the panel of 'styleselect'. :(
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tinymce.each( editorInstance.controlManager.buttons, function( button ) {
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if ( button._active && ( button.type === 'colorbutton' || button.type === 'panelbutton' || button.type === 'menubutton' ) ) {
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button.hidePanel();
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}
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} );
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// Text editor.
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} else {
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$top = $textTop;
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$editor = $textEditor;
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}
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toolsHeight = $tools.outerHeight();
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topPos = $top.parent().offset().top;
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topHeight = $top.outerHeight();
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editorPos = $editor.offset().top;
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editorHeight = $editor.outerHeight();
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editorWidth = $editor.outerWidth();
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statusBarHeight = visual ? $statusBar.outerHeight() : 0;
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// Maybe pin the top.
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if ( ( ! fixedTop || eventType === 'resize' ) &&
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// Handle scrolling down.
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( windowPos >= ( topPos - toolsHeight - adminBarHeight ) &&
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// Handle scrolling up.
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windowPos <= ( topPos - toolsHeight - adminBarHeight + editorHeight - buffer ) ) ) {
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fixedTop = true;
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$top.css( {
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position: 'fixed',
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top: adminBarHeight + toolsHeight,
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width: $editor.parent().width() - ( $top.outerWidth() - $top.width() ),
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borderTop: '1px solid #e5e5e5'
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} );
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$tools.css( {
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position: 'fixed',
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top: adminBarHeight,
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width: editorWidth + 2
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} );
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// Maybe unpin the top.
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} else if ( fixedTop || eventType === 'resize' ) {
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// Handle scrolling up.
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if ( windowPos <= ( topPos - toolsHeight - adminBarHeight ) ) {
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fixedTop = false;
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$top.css( {
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position: 'absolute',
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top: 0,
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borderTop: 'none',
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width: $editor.parent().width() - ( $top.outerWidth() - $top.width() )
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} );
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$tools.css( {
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position: 'absolute',
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top: 0,
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width: $contentWrap.width()
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} );
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// Handle scrolling down.
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} else if ( windowPos >= ( topPos - toolsHeight - adminBarHeight + editorHeight - buffer ) ) {
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fixedTop = false;
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$top.css( {
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position: 'absolute',
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top: editorHeight - buffer
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} );
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$tools.css( {
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position: 'absolute',
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top: editorHeight - buffer + 1, // border
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width: $contentWrap.width()
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} );
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}
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}
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// Maybe adjust the bottom bar.
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if ( ( ! fixedBottom || eventType === 'resize' ) &&
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// + 1 for the border around the .wp-editor-container.
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( windowPos + windowHeight ) <= ( editorPos + editorHeight + bottomHeight + statusBarHeight + 1 ) ) {
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fixedBottom = true;
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$bottom.css( {
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position: 'fixed',
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bottom: 0,
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width: editorWidth + 2,
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borderTop: '1px solid #dedede'
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} );
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} else if ( fixedBottom &&
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( windowPos + windowHeight ) > ( editorPos + editorHeight + bottomHeight + statusBarHeight - 1 ) ) {
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fixedBottom = false;
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$bottom.css( {
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position: 'relative',
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bottom: 'auto',
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width: '100%',
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borderTop: 'none'
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} );
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}
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}
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textEditorResize();
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$tools.css( {
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position: 'absolute',
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top: 0,
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width: $contentWrap.width()
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} );
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$contentWrap.css( {
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paddingTop: $tools.outerHeight()
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} );
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// This needs to execute after quicktags is ready or a button is added...
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setTimeout( function() {
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$textEditor.css( {
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paddingTop: $textTop.outerHeight() + parseInt( $textEditor.css( 'padding-top' ), 10 )
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} );
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}, 500 );
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});
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