595 lines
15 KiB
JavaScript
595 lines
15 KiB
JavaScript
var wpLink;
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(function($){
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var inputs = {}, rivers = {}, ed, River, Query;
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wpLink = {
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timeToTriggerRiver: 150,
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minRiverAJAXDuration: 200,
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riverBottomThreshold: 5,
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keySensitivity: 100,
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lastSearch: '',
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textarea: '',
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init : function() {
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inputs.dialog = $('#wp-link');
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inputs.submit = $('#wp-link-submit');
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// URL
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inputs.url = $('#url-field');
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inputs.nonce = $('#_ajax_linking_nonce');
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// Secondary options
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inputs.title = $('#link-title-field');
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// Advanced Options
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inputs.openInNewTab = $('#link-target-checkbox');
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inputs.search = $('#search-field');
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// Build Rivers
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rivers.search = new River( $('#search-results') );
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rivers.recent = new River( $('#most-recent-results') );
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rivers.elements = $('.query-results', inputs.dialog);
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// Bind event handlers
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inputs.dialog.keydown( wpLink.keydown );
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inputs.dialog.keyup( wpLink.keyup );
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inputs.submit.click( function(e){
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e.preventDefault();
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wpLink.update();
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});
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$('#wp-link-cancel').click( function(e){
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e.preventDefault();
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wpLink.close();
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});
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$('#internal-toggle').click( wpLink.toggleInternalLinking );
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rivers.elements.bind('river-select', wpLink.updateFields );
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inputs.search.keyup( wpLink.searchInternalLinks );
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inputs.dialog.bind('wpdialogrefresh', wpLink.refresh);
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inputs.dialog.bind('wpdialogbeforeopen', wpLink.beforeOpen);
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inputs.dialog.bind('wpdialogclose', wpLink.onClose);
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},
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beforeOpen : function() {
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wpLink.range = null;
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if ( ! wpLink.isMCE() && document.selection ) {
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wpLink.textarea.focus();
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wpLink.range = document.selection.createRange();
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}
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},
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open : function() {
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if ( !wpActiveEditor )
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return;
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this.textarea = $('#'+wpActiveEditor).get(0);
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// Initialize the dialog if necessary (html mode).
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if ( ! inputs.dialog.data('wpdialog') ) {
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inputs.dialog.wpdialog({
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title: wpLinkL10n.title,
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width: 480,
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height: 'auto',
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modal: true,
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dialogClass: 'wp-dialog',
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zIndex: 300000
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});
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}
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inputs.dialog.wpdialog('open');
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},
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isMCE : function() {
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return tinyMCEPopup && ( ed = tinyMCEPopup.editor ) && ! ed.isHidden();
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},
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refresh : function() {
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// Refresh rivers (clear links, check visibility)
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rivers.search.refresh();
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rivers.recent.refresh();
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if ( wpLink.isMCE() )
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wpLink.mceRefresh();
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else
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wpLink.setDefaultValues();
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// Focus the URL field and highlight its contents.
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// If this is moved above the selection changes,
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// IE will show a flashing cursor over the dialog.
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inputs.url.focus()[0].select();
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// Load the most recent results if this is the first time opening the panel.
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if ( ! rivers.recent.ul.children().length )
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rivers.recent.ajax();
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},
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mceRefresh : function() {
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var e;
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ed = tinyMCEPopup.editor;
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tinyMCEPopup.restoreSelection();
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// If link exists, select proper values.
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if ( e = ed.dom.getParent(ed.selection.getNode(), 'A') ) {
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// Set URL and description.
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inputs.url.val( ed.dom.getAttrib(e, 'href') );
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inputs.title.val( ed.dom.getAttrib(e, 'title') );
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// Set open in new tab.
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if ( "_blank" == ed.dom.getAttrib(e, 'target') )
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inputs.openInNewTab.prop('checked', true);
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// Update save prompt.
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inputs.submit.val( wpLinkL10n.update );
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// If there's no link, set the default values.
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} else {
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wpLink.setDefaultValues();
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}
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tinyMCEPopup.storeSelection();
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},
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close : function() {
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if ( wpLink.isMCE() )
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tinyMCEPopup.close();
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else
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inputs.dialog.wpdialog('close');
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},
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onClose: function() {
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if ( ! wpLink.isMCE() ) {
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wpLink.textarea.focus();
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if ( wpLink.range ) {
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wpLink.range.moveToBookmark( wpLink.range.getBookmark() );
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wpLink.range.select();
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}
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}
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},
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getAttrs : function() {
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return {
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href : inputs.url.val(),
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title : inputs.title.val(),
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target : inputs.openInNewTab.prop('checked') ? '_blank' : ''
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};
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},
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update : function() {
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if ( wpLink.isMCE() )
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wpLink.mceUpdate();
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else
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wpLink.htmlUpdate();
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},
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htmlUpdate : function() {
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var attrs, html, start, end, cursor,
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textarea = wpLink.textarea;
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if ( ! textarea )
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return;
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attrs = wpLink.getAttrs();
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// If there's no href, return.
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if ( ! attrs.href || attrs.href == 'http://' )
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return;
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// Build HTML
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html = '<a href="' + attrs.href + '"';
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if ( attrs.title )
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html += ' title="' + attrs.title + '"';
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if ( attrs.target )
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html += ' target="' + attrs.target + '"';
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html += '>';
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// Insert HTML
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// W3C
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if ( typeof textarea.selectionStart !== 'undefined' ) {
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start = textarea.selectionStart;
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end = textarea.selectionEnd;
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selection = textarea.value.substring( start, end );
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html = html + selection + '</a>';
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cursor = start + html.length;
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// If no next is selected, place the cursor inside the closing tag.
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if ( start == end )
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cursor -= '</a>'.length;
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textarea.value = textarea.value.substring( 0, start )
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+ html
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+ textarea.value.substring( end, textarea.value.length );
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// Update cursor position
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textarea.selectionStart = textarea.selectionEnd = cursor;
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// IE
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// Note: If no text is selected, IE will not place the cursor
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// inside the closing tag.
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} else if ( document.selection && wpLink.range ) {
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textarea.focus();
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wpLink.range.text = html + wpLink.range.text + '</a>';
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wpLink.range.moveToBookmark( wpLink.range.getBookmark() );
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wpLink.range.select();
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wpLink.range = null;
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}
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wpLink.close();
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textarea.focus();
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},
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mceUpdate : function() {
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var ed = tinyMCEPopup.editor,
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attrs = wpLink.getAttrs(),
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e, b;
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tinyMCEPopup.restoreSelection();
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e = ed.dom.getParent(ed.selection.getNode(), 'A');
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// If the values are empty, unlink and return
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if ( ! attrs.href || attrs.href == 'http://' ) {
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if ( e ) {
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tinyMCEPopup.execCommand("mceBeginUndoLevel");
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b = ed.selection.getBookmark();
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ed.dom.remove(e, 1);
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ed.selection.moveToBookmark(b);
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tinyMCEPopup.execCommand("mceEndUndoLevel");
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wpLink.close();
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}
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return;
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}
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tinyMCEPopup.execCommand("mceBeginUndoLevel");
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if (e == null) {
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ed.getDoc().execCommand("unlink", false, null);
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tinyMCEPopup.execCommand("mceInsertLink", false, "#mce_temp_url#", {skip_undo : 1});
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tinymce.each(ed.dom.select("a"), function(n) {
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if (ed.dom.getAttrib(n, 'href') == '#mce_temp_url#') {
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e = n;
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ed.dom.setAttribs(e, attrs);
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}
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});
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// Sometimes WebKit lets a user create a link where
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// they shouldn't be able to. In this case, CreateLink
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// injects "#mce_temp_url#" into their content. Fix it.
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if ( $(e).text() == '#mce_temp_url#' ) {
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ed.dom.remove(e);
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e = null;
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}
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} else {
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ed.dom.setAttribs(e, attrs);
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}
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// Don't move caret if selection was image
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if ( e && (e.childNodes.length != 1 || e.firstChild.nodeName != 'IMG') ) {
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ed.focus();
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ed.selection.select(e);
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ed.selection.collapse(0);
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tinyMCEPopup.storeSelection();
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}
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tinyMCEPopup.execCommand("mceEndUndoLevel");
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wpLink.close();
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},
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updateFields : function( e, li, originalEvent ) {
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inputs.url.val( li.children('.item-permalink').val() );
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inputs.title.val( li.hasClass('no-title') ? '' : li.children('.item-title').text() );
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if ( originalEvent && originalEvent.type == "click" )
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inputs.url.focus();
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},
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setDefaultValues : function() {
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// Set URL and description to defaults.
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// Leave the new tab setting as-is.
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inputs.url.val('http://');
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inputs.title.val('');
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// Update save prompt.
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inputs.submit.val( wpLinkL10n.save );
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},
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searchInternalLinks : function() {
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var t = $(this), waiting,
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search = t.val();
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if ( search.length > 2 ) {
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rivers.recent.hide();
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rivers.search.show();
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// Don't search if the keypress didn't change the title.
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if ( wpLink.lastSearch == search )
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return;
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wpLink.lastSearch = search;
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waiting = t.siblings('img.waiting').show();
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rivers.search.change( search );
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rivers.search.ajax( function(){ waiting.hide(); });
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} else {
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rivers.search.hide();
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rivers.recent.show();
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}
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},
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next : function() {
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rivers.search.next();
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rivers.recent.next();
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},
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prev : function() {
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rivers.search.prev();
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rivers.recent.prev();
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},
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keydown : function( event ) {
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var fn, key = $.ui.keyCode;
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switch( event.which ) {
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case key.UP:
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fn = 'prev';
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case key.DOWN:
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fn = fn || 'next';
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clearInterval( wpLink.keyInterval );
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wpLink[ fn ]();
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wpLink.keyInterval = setInterval( wpLink[ fn ], wpLink.keySensitivity );
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break;
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default:
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return;
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}
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event.preventDefault();
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},
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keyup: function( event ) {
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var key = $.ui.keyCode;
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switch( event.which ) {
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case key.ESCAPE:
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event.stopImmediatePropagation();
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if ( ! $(document).triggerHandler( 'wp_CloseOnEscape', [{ event: event, what: 'wplink', cb: wpLink.close }] ) )
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wpLink.close();
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return false;
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break;
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case key.UP:
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case key.DOWN:
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clearInterval( wpLink.keyInterval );
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break;
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default:
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return;
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}
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event.preventDefault();
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},
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delayedCallback : function( func, delay ) {
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var timeoutTriggered, funcTriggered, funcArgs, funcContext;
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if ( ! delay )
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return func;
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setTimeout( function() {
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if ( funcTriggered )
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return func.apply( funcContext, funcArgs );
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// Otherwise, wait.
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timeoutTriggered = true;
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}, delay);
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return function() {
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if ( timeoutTriggered )
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return func.apply( this, arguments );
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// Otherwise, wait.
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funcArgs = arguments;
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funcContext = this;
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funcTriggered = true;
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};
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},
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toggleInternalLinking : function( event ) {
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var panel = $('#search-panel'),
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widget = inputs.dialog.wpdialog('widget'),
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// We're about to toggle visibility; it's currently the opposite
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visible = !panel.is(':visible'),
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win = $(window);
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$(this).toggleClass('toggle-arrow-active', visible);
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inputs.dialog.height('auto');
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panel.slideToggle( 300, function() {
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setUserSetting('wplink', visible ? '1' : '0');
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inputs[ visible ? 'search' : 'url' ].focus();
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// Move the box if the box is now expanded, was opened in a collapsed state,
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// and if it needs to be moved. (Judged by bottom not being positive or
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// bottom being smaller than top.)
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var scroll = win.scrollTop(),
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top = widget.offset().top,
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bottom = top + widget.outerHeight(),
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diff = bottom - win.height();
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if ( diff > scroll ) {
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widget.animate({'top': diff < top ? top - diff : scroll }, 200);
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}
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});
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event.preventDefault();
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}
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}
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River = function( element, search ) {
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var self = this;
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this.element = element;
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this.ul = element.children('ul');
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this.waiting = element.find('.river-waiting');
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this.change( search );
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this.refresh();
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element.scroll( function(){ self.maybeLoad(); });
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element.delegate('li', 'click', function(e){ self.select( $(this), e ); });
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};
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$.extend( River.prototype, {
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refresh: function() {
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this.deselect();
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this.visible = this.element.is(':visible');
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},
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show: function() {
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if ( ! this.visible ) {
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this.deselect();
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this.element.show();
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this.visible = true;
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}
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},
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hide: function() {
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this.element.hide();
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this.visible = false;
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},
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// Selects a list item and triggers the river-select event.
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select: function( li, event ) {
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var liHeight, elHeight, liTop, elTop;
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if ( li.hasClass('unselectable') || li == this.selected )
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return;
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this.deselect();
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this.selected = li.addClass('selected');
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// Make sure the element is visible
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liHeight = li.outerHeight();
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elHeight = this.element.height();
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liTop = li.position().top;
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elTop = this.element.scrollTop();
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if ( liTop < 0 ) // Make first visible element
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this.element.scrollTop( elTop + liTop );
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else if ( liTop + liHeight > elHeight ) // Make last visible element
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this.element.scrollTop( elTop + liTop - elHeight + liHeight );
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// Trigger the river-select event
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this.element.trigger('river-select', [ li, event, this ]);
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},
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deselect: function() {
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if ( this.selected )
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this.selected.removeClass('selected');
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this.selected = false;
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},
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prev: function() {
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if ( ! this.visible )
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return;
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var to;
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if ( this.selected ) {
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to = this.selected.prev('li');
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if ( to.length )
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this.select( to );
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}
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},
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next: function() {
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if ( ! this.visible )
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return;
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var to = this.selected ? this.selected.next('li') : $('li:not(.unselectable):first', this.element);
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if ( to.length )
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this.select( to );
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},
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ajax: function( callback ) {
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var self = this,
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delay = this.query.page == 1 ? 0 : wpLink.minRiverAJAXDuration,
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response = wpLink.delayedCallback( function( results, params ) {
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self.process( results, params );
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if ( callback )
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callback( results, params );
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}, delay );
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this.query.ajax( response );
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},
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change: function( search ) {
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if ( this.query && this._search == search )
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return;
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this._search = search;
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this.query = new Query( search );
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this.element.scrollTop(0);
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},
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process: function( results, params ) {
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var list = '', alt = true, classes = '',
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firstPage = params.page == 1;
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if ( !results ) {
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if ( firstPage ) {
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list += '<li class="unselectable"><span class="item-title"><em>'
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+ wpLinkL10n.noMatchesFound
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+ '</em></span></li>';
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}
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} else {
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$.each( results, function() {
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classes = alt ? 'alternate' : '';
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classes += this['title'] ? '' : ' no-title';
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list += classes ? '<li class="' + classes + '">' : '<li>';
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list += '<input type="hidden" class="item-permalink" value="' + this['permalink'] + '" />';
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list += '<span class="item-title">';
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list += this['title'] ? this['title'] : wpLinkL10n.noTitle;
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list += '</span><span class="item-info">' + this['info'] + '</span></li>';
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alt = ! alt;
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});
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}
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this.ul[ firstPage ? 'html' : 'append' ]( list );
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},
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maybeLoad: function() {
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var self = this,
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el = this.element,
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bottom = el.scrollTop() + el.height();
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if ( ! this.query.ready() || bottom < this.ul.height() - wpLink.riverBottomThreshold )
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return;
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setTimeout(function() {
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var newTop = el.scrollTop(),
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newBottom = newTop + el.height();
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if ( ! self.query.ready() || newBottom < self.ul.height() - wpLink.riverBottomThreshold )
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return;
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self.waiting.show();
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el.scrollTop( newTop + self.waiting.outerHeight() );
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self.ajax( function() { self.waiting.hide(); });
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}, wpLink.timeToTriggerRiver );
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}
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});
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Query = function( search ) {
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this.page = 1;
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this.allLoaded = false;
|
|
this.querying = false;
|
|
this.search = search;
|
|
};
|
|
|
|
$.extend( Query.prototype, {
|
|
ready: function() {
|
|
return !( this.querying || this.allLoaded );
|
|
},
|
|
ajax: function( callback ) {
|
|
var self = this,
|
|
query = {
|
|
action : 'wp-link-ajax',
|
|
page : this.page,
|
|
'_ajax_linking_nonce' : inputs.nonce.val()
|
|
};
|
|
|
|
if ( this.search )
|
|
query.search = this.search;
|
|
|
|
this.querying = true;
|
|
|
|
$.post( ajaxurl, query, function(r) {
|
|
self.page++;
|
|
self.querying = false;
|
|
self.allLoaded = !r;
|
|
callback( r, query );
|
|
}, "json" );
|
|
}
|
|
});
|
|
|
|
$(document).ready( wpLink.init );
|
|
})(jQuery);
|