473 lines
13 KiB
JavaScript
473 lines
13 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 = $( '#wpadminbar' ),
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$wrap = $( '#postdivrich' ),
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$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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fullscreen = window.wp.editor && window.wp.editor.fullscreen,
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mceEditor,
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mceBind = function(){},
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mceUnbind = function(){},
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fixedTop = false,
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fixedBottom = false,
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scrollTimer;
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$textEditorClone.insertAfter( $textEditor );
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$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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function textEditorKeyup( event ) {
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var VK = jQuery.ui.keyCode,
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key = event.keyCode,
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range = document.createRange(),
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selStart = $textEditor[0].selectionStart,
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selEnd = $textEditor[0].selectionEnd,
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textNode = $textEditorClone[0].firstChild,
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windowHeight = $window.height(),
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buffer = 10,
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offset, cursorTop, cursorBottom, editorTop, editorBottom;
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if ( selStart && selEnd && selStart !== selEnd ) {
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return;
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}
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// These are not TinyMCE ranges.
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try {
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range.setStart( textNode, selStart );
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range.setEnd( textNode, selEnd + 1 );
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} catch ( ex ) {}
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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 - buffer;
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cursorBottom = cursorTop + offset.height + buffer;
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editorTop = $adminBar.outerHeight() + $tools.outerHeight() + $textTop.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 textEditorResize() {
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if ( mceEditor && ! mceEditor.isHidden() ) {
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return;
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}
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var textEditorHeight = $textEditor.height(),
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hiddenHeight;
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$textEditorClone.width( $textEditor.width() );
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$textEditorClone.text( $textEditor.val() + ' ' );
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hiddenHeight = $textEditorClone.height();
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if ( hiddenHeight < 300 ) {
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hiddenHeight = 300;
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}
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if ( hiddenHeight === textEditorHeight ) {
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return;
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}
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$textEditor.height( hiddenHeight );
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adjust();
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}
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// We need to wait for TinyMCE to initialize.
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$document.on( 'tinymce-editor-init.editor-expand', function( event, editor ) {
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// Make sure it's the main editor.
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if ( editor.id !== 'content' ) {
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return;
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}
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// Copy the editor instance.
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mceEditor = editor;
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// Set the minimum height to the initial viewport height.
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editor.settings.autoresize_min_height = 300;
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// Get the necessary UI elements.
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$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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function mceGetCursorOffset() {
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var node = editor.selection.getNode(),
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view, offset;
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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 {
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offset = node.getBoundingClientRect();
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}
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return offset.height ? offset : false;
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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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function mceKeyup( event ) {
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var VK = tinymce.util.VK,
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key = event.keyCode,
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offset = mceGetCursorOffset(),
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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().firstChild.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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// Don't scroll if the node is taller than the visible part of the editor
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if ( editorBottom - editorTop < offset.height ) {
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return;
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}
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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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// Adjust when switching editor modes.
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function mceShow() {
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setTimeout( function() {
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editor.execCommand( 'wpAutoResize' );
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adjust();
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}, 300 );
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}
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function mceHide() {
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textEditorResize();
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adjust();
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}
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mceBind = function() {
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editor.on( 'keyup', mceKeyup );
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editor.on( 'show', mceShow );
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editor.on( 'hide', mceHide );
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// Adjust when the editor resizes.
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editor.on( 'setcontent wp-autoresize wp-toolbar-toggle', adjust );
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};
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mceUnbind = function() {
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editor.off( 'keyup', mceKeyup );
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editor.off( 'show', mceShow );
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editor.off( 'hide', mceHide );
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editor.off( 'setcontent wp-autoresize wp-toolbar-toggle', adjust );
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};
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if ( $wrap.hasClass( 'wp-editor-expand' ) ) {
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// Adjust "immediately"
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mceBind();
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initialResize( adjust );
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}
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} );
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// Adjust the toolbars based on the active editor mode.
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function adjust( type ) {
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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 ? $adminBar.height() : 0,
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resize = type !== 'scroll',
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visual = ( mceEditor && ! mceEditor.isHidden() ),
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buffer = 200,
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$top, $editor,
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toolsHeight, topPos, topHeight, editorPos, editorHeight, editorWidth, statusBarHeight;
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if ( visual ) {
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$top = $visualTop;
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$editor = $visualEditor;
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} else {
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$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 ? $statusBar.outerHeight() : 0;
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// Maybe pin the top.
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if ( ( ! fixedTop || resize ) &&
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// Handle scrolling down.
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( windowPos >= ( topPos - toolsHeight - adminBarHeight ) &&
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// Handle scrolling up.
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windowPos <= ( topPos - toolsHeight - adminBarHeight + editorHeight - buffer ) ) ) {
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fixedTop = true;
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$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 || 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: $contentWrap.width()
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} );
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}
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}
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// Maybe adjust the bottom bar.
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if ( ( ! fixedBottom || resize ) &&
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// + 1 for the border around the .wp-editor-container.
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( windowPos + windowHeight ) <= ( editorPos + editorHeight + bottomHeight + statusBarHeight + 1 ) ) {
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fixedBottom = true;
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$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 || resize ) &&
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( windowPos + windowHeight ) > ( editorPos + editorHeight + bottomHeight + statusBarHeight - 1 ) ) {
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fixedBottom = false;
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$bottom.css( {
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position: 'relative',
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bottom: 'auto',
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width: '100%',
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borderTop: 'none'
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} );
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}
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if ( resize ) {
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$contentWrap.css( {
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paddingTop: $tools.outerHeight()
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} );
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if ( visual ) {
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$visualEditor.css( {
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paddingTop: $visualTop.outerHeight()
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} );
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} else {
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$textEditor.css( {
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marginTop: $textTop.outerHeight()
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} );
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$textEditorClone.width( $textEditor.width() );
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}
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}
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}
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function fullscreenHide() {
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textEditorResize();
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adjust();
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}
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function initialResize( callback ) {
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for ( var i = 1; i < 6; i++ ) {
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setTimeout( callback, 500 * i );
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}
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}
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function afterScroll() {
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clearTimeout( scrollTimer );
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scrollTimer = setTimeout( adjust, 200 );
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}
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function on() {
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// Scroll to the top when triggering this from JS.
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// Ensures toolbars are pinned properly.
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if ( window.pageYOffset && window.pageYOffset > 130 ) {
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window.scrollTo( window.pageXOffset, 0 );
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}
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$wrap.addClass( 'wp-editor-expand' );
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// Adjust when the window is scrolled or resized.
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$window.on( 'scroll.editor-expand resize.editor-expand', function( event ) {
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adjust( event.type );
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afterScroll();
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} );
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// Adjust when collapsing the menu, changing the columns, changing the body class.
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$document.on( 'wp-collapse-menu.editor-expand postboxes-columnchange.editor-expand editor-classchange.editor-expand', adjust );
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$textEditor.on( 'focus.editor-expand input.editor-expand propertychange.editor-expand', textEditorResize );
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$textEditor.on( 'keyup.editor-expand', textEditorKeyup );
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mceBind();
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// Adjust when entering/exiting fullscreen mode.
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fullscreen && fullscreen.pubsub.subscribe( 'hidden', fullscreenHide );
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if ( mceEditor ) {
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mceEditor.settings.wp_autoresize_on = true;
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mceEditor.execCommand( 'wpAutoResizeOn' );
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if ( ! mceEditor.isHidden() ) {
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mceEditor.execCommand( 'wpAutoResize' );
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}
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}
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if ( ! mceEditor || mceEditor.isHidden() ) {
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textEditorResize();
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}
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adjust();
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}
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function off() {
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var height = window.getUserSetting('ed_size');
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// Scroll to the top when triggering this from JS.
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// Ensures toolbars are reset properly.
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if ( window.pageYOffset && window.pageYOffset > 130 ) {
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window.scrollTo( window.pageXOffset, 0 );
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}
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$wrap.removeClass( 'wp-editor-expand' );
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// Adjust when the window is scrolled or resized.
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$window.off( 'scroll.editor-expand resize.editor-expand' );
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// Adjust when collapsing the menu, changing the columns, changing the body class.
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$document.off( 'wp-collapse-menu.editor-expand postboxes-columnchange.editor-expand editor-classchange.editor-expand', adjust );
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$textEditor.off( 'focus.editor-expand input.editor-expand propertychange.editor-expand', textEditorResize );
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$textEditor.off( 'keyup.editor-expand', textEditorKeyup );
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mceUnbind();
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// Adjust when entering/exiting fullscreen mode.
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fullscreen && fullscreen.pubsub.unsubscribe( 'hidden', fullscreenHide );
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// Reset all css
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$.each( [ $visualTop, $textTop, $tools, $bottom, $contentWrap, $visualEditor, $textEditor ], function( i, element ) {
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element && element.attr( 'style', '' );
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});
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if ( mceEditor ) {
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mceEditor.settings.wp_autoresize_on = false;
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mceEditor.execCommand( 'wpAutoResizeOff' );
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if ( ! mceEditor.isHidden() ) {
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$textEditor.hide();
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if ( height ) {
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mceEditor.theme.resizeTo( null, height );
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}
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}
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}
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if ( height ) {
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$textEditor.height( height );
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}
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}
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// Start on load
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if ( $wrap.hasClass( 'wp-editor-expand' ) ) {
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on();
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// Ideally we need to resize just after CSS has fully loaded and QuickTags is ready.
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if ( $contentWrap.hasClass( 'html-active' ) ) {
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initialResize( function() {
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adjust();
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textEditorResize();
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} );
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}
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}
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// Show the on/off checkbox
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$( '#adv-settings .editor-expand' ).show();
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$( '#editor-expand-toggle' ).on( 'change.editor-expand', function() {
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if ( $(this).prop( 'checked' ) ) {
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on();
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window.setUserSetting( 'editor_expand', 'on' );
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} else {
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off();
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window.setUserSetting( 'editor_expand', 'off' );
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}
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});
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// Expose on() and off()
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window.editorExpand = {
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on: on,
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off: off
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};
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});
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