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45d19872fc
Swaps the DOM order of the two main columns within the admin Image Editor. When the sequence in which content is presented affects its meaning and the navigation sequences affect meaning or operation, visual order and DOM order must match. See WCAG 2.1 Success Criterion 1.3.2 Meaningful Sequence and Success Criterion 2.4.3 Focus Order. Props sabernhardt, anevins, audrasjb, afercia. Fixes #47136. Built from https://develop.svn.wordpress.org/trunk@48265 git-svn-id: http://core.svn.wordpress.org/trunk@48034 1a063a9b-81f0-0310-95a4-ce76da25c4cd
1186 lines
29 KiB
JavaScript
1186 lines
29 KiB
JavaScript
/**
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* The functions necessary for editing images.
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*
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* @since 2.9.0
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* @output wp-admin/js/image-edit.js
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*/
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/* global imageEditL10n, ajaxurl, confirm */
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(function($) {
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/**
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* Contains all the methods to initialise and control the image editor.
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*
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* @namespace imageEdit
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*/
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var imageEdit = window.imageEdit = {
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iasapi : {},
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hold : {},
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postid : '',
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_view : false,
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/**
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* Handle crop tool clicks.
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*/
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handleCropToolClick: function( postid, nonce, cropButton ) {
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var img = $( '#image-preview-' + postid ),
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selection = this.iasapi.getSelection();
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// Ensure selection is available, otherwise reset to full image.
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if ( isNaN( selection.x1 ) ) {
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this.setCropSelection( postid, { 'x1': 0, 'y1': 0, 'x2': img.innerWidth(), 'y2': img.innerHeight(), 'width': img.innerWidth(), 'height': img.innerHeight() } );
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selection = this.iasapi.getSelection();
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}
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// If we don't already have a selection, select the entire image.
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if ( 0 === selection.x1 && 0 === selection.y1 && 0 === selection.x2 && 0 === selection.y2 ) {
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this.iasapi.setSelection( 0, 0, img.innerWidth(), img.innerHeight(), true );
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this.iasapi.setOptions( { show: true } );
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this.iasapi.update();
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} else {
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// Otherwise, perform the crop.
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imageEdit.crop( postid, nonce , cropButton );
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}
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},
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/**
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* Converts a value to an integer.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {number} f The float value that should be converted.
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*
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* @return {number} The integer representation from the float value.
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*/
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intval : function(f) {
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/*
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* Bitwise OR operator: one of the obscure ways to truncate floating point figures,
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* worth reminding JavaScript doesn't have a distinct "integer" type.
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*/
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return f | 0;
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},
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/**
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* Adds the disabled attribute and class to a single form element or a field set.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {jQuery} el The element that should be modified.
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* @param {bool|number} s The state for the element. If set to true
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* the element is disabled,
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* otherwise the element is enabled.
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* The function is sometimes called with a 0 or 1
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* instead of true or false.
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*
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* @return {void}
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*/
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setDisabled : function( el, s ) {
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/*
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* `el` can be a single form element or a fieldset. Before #28864, the disabled state on
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* some text fields was handled targeting $('input', el). Now we need to handle the
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* disabled state on buttons too so we can just target `el` regardless if it's a single
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* element or a fieldset because when a fieldset is disabled, its descendants are disabled too.
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*/
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if ( s ) {
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el.removeClass( 'disabled' ).prop( 'disabled', false );
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} else {
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el.addClass( 'disabled' ).prop( 'disabled', true );
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}
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},
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/**
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* Initializes the image editor.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {number} postid The post ID.
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*
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* @return {void}
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*/
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init : function(postid) {
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var t = this, old = $('#image-editor-' + t.postid),
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x = t.intval( $('#imgedit-x-' + postid).val() ),
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y = t.intval( $('#imgedit-y-' + postid).val() );
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if ( t.postid !== postid && old.length ) {
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t.close(t.postid);
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}
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t.hold.w = t.hold.ow = x;
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t.hold.h = t.hold.oh = y;
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t.hold.xy_ratio = x / y;
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t.hold.sizer = parseFloat( $('#imgedit-sizer-' + postid).val() );
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t.postid = postid;
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$('#imgedit-response-' + postid).empty();
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$('input[type="text"]', '#imgedit-panel-' + postid).keypress(function(e) {
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var k = e.keyCode;
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// Key codes 37 through 40 are the arrow keys.
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if ( 36 < k && k < 41 ) {
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$(this).blur();
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}
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// The key code 13 is the Enter key.
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if ( 13 === k ) {
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e.preventDefault();
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e.stopPropagation();
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return false;
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}
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});
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$( document ).on( 'image-editor-image-loaded', this.focusManager );
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},
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/**
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* Toggles the wait/load icon in the editor.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {number} postid The post ID.
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* @param {number} toggle Is 0 or 1, fades the icon in then 1 and out when 0.
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*
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* @return {void}
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*/
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toggleEditor : function(postid, toggle) {
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var wait = $('#imgedit-wait-' + postid);
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if ( toggle ) {
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wait.fadeIn( 'fast' );
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} else {
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wait.fadeOut('fast');
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}
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},
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/**
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* Shows or hides the image edit help box.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {HTMLElement} el The element to create the help window in.
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*
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* @return {boolean} Always returns false.
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*/
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toggleHelp : function(el) {
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var $el = $( el );
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$el
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.attr( 'aria-expanded', 'false' === $el.attr( 'aria-expanded' ) ? 'true' : 'false' )
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.parents( '.imgedit-group-top' ).toggleClass( 'imgedit-help-toggled' ).find( '.imgedit-help' ).slideToggle( 'fast' );
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return false;
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},
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/**
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* Gets the value from the image edit target.
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*
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* The image edit target contains the image sizes where the (possible) changes
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* have to be applied to.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {number} postid The post ID.
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*
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* @return {string} The value from the imagedit-save-target input field when available,
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* or 'full' when not available.
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*/
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getTarget : function(postid) {
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return $('input[name="imgedit-target-' + postid + '"]:checked', '#imgedit-save-target-' + postid).val() || 'full';
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},
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/**
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* Recalculates the height or width and keeps the original aspect ratio.
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*
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* If the original image size is exceeded a red exclamation mark is shown.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {number} postid The current post ID.
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* @param {number} x Is 0 when it applies the y-axis
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* and 1 when applicable for the x-axis.
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* @param {jQuery} el Element.
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*
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* @return {void}
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*/
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scaleChanged : function( postid, x, el ) {
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var w = $('#imgedit-scale-width-' + postid), h = $('#imgedit-scale-height-' + postid),
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warn = $('#imgedit-scale-warn-' + postid), w1 = '', h1 = '';
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if ( false === this.validateNumeric( el ) ) {
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return;
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}
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if ( x ) {
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h1 = ( w.val() !== '' ) ? Math.round( w.val() / this.hold.xy_ratio ) : '';
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h.val( h1 );
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} else {
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w1 = ( h.val() !== '' ) ? Math.round( h.val() * this.hold.xy_ratio ) : '';
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w.val( w1 );
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}
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if ( ( h1 && h1 > this.hold.oh ) || ( w1 && w1 > this.hold.ow ) ) {
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warn.css('visibility', 'visible');
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} else {
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warn.css('visibility', 'hidden');
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}
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},
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/**
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* Gets the selected aspect ratio.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {number} postid The post ID.
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*
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* @return {string} The aspect ratio.
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*/
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getSelRatio : function(postid) {
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var x = this.hold.w, y = this.hold.h,
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X = this.intval( $('#imgedit-crop-width-' + postid).val() ),
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Y = this.intval( $('#imgedit-crop-height-' + postid).val() );
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if ( X && Y ) {
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return X + ':' + Y;
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}
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if ( x && y ) {
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return x + ':' + y;
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}
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return '1:1';
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},
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/**
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* Removes the last action from the image edit history.
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* The history consist of (edit) actions performed on the image.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {number} postid The post ID.
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* @param {number} setSize 0 or 1, when 1 the image resets to its original size.
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*
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* @return {string} JSON string containing the history or an empty string if no history exists.
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*/
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filterHistory : function(postid, setSize) {
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// Apply undo state to history.
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var history = $('#imgedit-history-' + postid).val(), pop, n, o, i, op = [];
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if ( history !== '' ) {
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// Read the JSON string with the image edit history.
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history = JSON.parse(history);
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pop = this.intval( $('#imgedit-undone-' + postid).val() );
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if ( pop > 0 ) {
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while ( pop > 0 ) {
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history.pop();
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pop--;
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}
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}
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// Reset size to it's original state.
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if ( setSize ) {
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if ( !history.length ) {
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this.hold.w = this.hold.ow;
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this.hold.h = this.hold.oh;
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return '';
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}
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// Restore original 'o'.
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o = history[history.length - 1];
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// c = 'crop', r = 'rotate', f = 'flip'.
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o = o.c || o.r || o.f || false;
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if ( o ) {
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// fw = Full image width.
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this.hold.w = o.fw;
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// fh = Full image height.
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this.hold.h = o.fh;
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}
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}
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// Filter the last step/action from the history.
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for ( n in history ) {
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i = history[n];
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if ( i.hasOwnProperty('c') ) {
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op[n] = { 'c': { 'x': i.c.x, 'y': i.c.y, 'w': i.c.w, 'h': i.c.h } };
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} else if ( i.hasOwnProperty('r') ) {
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op[n] = { 'r': i.r.r };
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} else if ( i.hasOwnProperty('f') ) {
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op[n] = { 'f': i.f.f };
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}
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}
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return JSON.stringify(op);
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}
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return '';
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},
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/**
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* Binds the necessary events to the image.
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*
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* When the image source is reloaded the image will be reloaded.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {number} postid The post ID.
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* @param {string} nonce The nonce to verify the request.
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* @param {function} callback Function to execute when the image is loaded.
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*
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* @return {void}
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*/
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refreshEditor : function(postid, nonce, callback) {
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var t = this, data, img;
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t.toggleEditor(postid, 1);
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data = {
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'action': 'imgedit-preview',
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'_ajax_nonce': nonce,
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'postid': postid,
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'history': t.filterHistory(postid, 1),
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'rand': t.intval(Math.random() * 1000000)
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};
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img = $( '<img id="image-preview-' + postid + '" alt="" />' )
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.on( 'load', { history: data.history }, function( event ) {
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var max1, max2,
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parent = $( '#imgedit-crop-' + postid ),
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t = imageEdit,
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historyObj;
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// Checks if there already is some image-edit history.
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if ( '' !== event.data.history ) {
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historyObj = JSON.parse( event.data.history );
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// If last executed action in history is a crop action.
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if ( historyObj[historyObj.length - 1].hasOwnProperty( 'c' ) ) {
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/*
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* A crop action has completed and the crop button gets disabled
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* ensure the undo button is enabled.
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*/
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t.setDisabled( $( '#image-undo-' + postid) , true );
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// Move focus to the undo button to avoid a focus loss.
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$( '#image-undo-' + postid ).focus();
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}
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}
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parent.empty().append(img);
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// w, h are the new full size dimensions.
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max1 = Math.max( t.hold.w, t.hold.h );
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max2 = Math.max( $(img).width(), $(img).height() );
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t.hold.sizer = max1 > max2 ? max2 / max1 : 1;
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t.initCrop(postid, img, parent);
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if ( (typeof callback !== 'undefined') && callback !== null ) {
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callback();
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}
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if ( $('#imgedit-history-' + postid).val() && $('#imgedit-undone-' + postid).val() === '0' ) {
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$('input.imgedit-submit-btn', '#imgedit-panel-' + postid).removeAttr('disabled');
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} else {
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$('input.imgedit-submit-btn', '#imgedit-panel-' + postid).prop('disabled', true);
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}
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t.toggleEditor(postid, 0);
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})
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.on('error', function() {
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$('#imgedit-crop-' + postid).empty().append('<div class="error"><p>' + imageEditL10n.error + '</p></div>');
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t.toggleEditor(postid, 0);
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})
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.attr('src', ajaxurl + '?' + $.param(data));
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},
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/**
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* Performs an image edit action.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {number} postid The post ID.
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* @param {string} nonce The nonce to verify the request.
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* @param {string} action The action to perform on the image.
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* The possible actions are: "scale" and "restore".
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*
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* @return {boolean|void} Executes a post request that refreshes the page
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* when the action is performed.
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* Returns false if a invalid action is given,
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* or when the action cannot be performed.
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*/
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action : function(postid, nonce, action) {
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var t = this, data, w, h, fw, fh;
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if ( t.notsaved(postid) ) {
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return false;
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}
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data = {
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'action': 'image-editor',
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'_ajax_nonce': nonce,
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'postid': postid
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};
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if ( 'scale' === action ) {
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w = $('#imgedit-scale-width-' + postid),
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h = $('#imgedit-scale-height-' + postid),
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fw = t.intval(w.val()),
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fh = t.intval(h.val());
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if ( fw < 1 ) {
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w.focus();
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return false;
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} else if ( fh < 1 ) {
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h.focus();
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return false;
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}
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if ( fw === t.hold.ow || fh === t.hold.oh ) {
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return false;
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}
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data['do'] = 'scale';
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data.fwidth = fw;
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data.fheight = fh;
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} else if ( 'restore' === action ) {
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data['do'] = 'restore';
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} else {
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return false;
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}
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t.toggleEditor(postid, 1);
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$.post(ajaxurl, data, function(r) {
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$('#image-editor-' + postid).empty().append(r);
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t.toggleEditor(postid, 0);
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// Refresh the attachment model so that changes propagate.
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if ( t._view ) {
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t._view.refresh();
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}
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});
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},
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/**
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* Stores the changes that are made to the image.
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*
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* @since 2.9.0
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*
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* @memberof imageEdit
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*
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* @param {number} postid The post ID to get the image from the database.
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* @param {string} nonce The nonce to verify the request.
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*
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* @return {boolean|void} If the actions are successfully saved a response message is shown.
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* Returns false if there is no image editing history,
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* thus there are not edit-actions performed on the image.
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*/
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save : function(postid, nonce) {
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var data,
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target = this.getTarget(postid),
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history = this.filterHistory(postid, 0),
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self = this;
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if ( '' === history ) {
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return false;
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}
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this.toggleEditor(postid, 1);
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data = {
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'action': 'image-editor',
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'_ajax_nonce': nonce,
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'postid': postid,
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'history': history,
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'target': target,
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'context': $('#image-edit-context').length ? $('#image-edit-context').val() : null,
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'do': 'save'
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};
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// Post the image edit data to the backend.
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$.post(ajaxurl, data, function(r) {
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// Read the response.
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var ret = JSON.parse(r);
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// If a response is returned, close the editor and show an error.
|
|
if ( ret.error ) {
|
|
$('#imgedit-response-' + postid).html('<div class="error"><p>' + ret.error + '</p></div>');
|
|
imageEdit.close(postid);
|
|
return;
|
|
}
|
|
|
|
if ( ret.fw && ret.fh ) {
|
|
$('#media-dims-' + postid).html( ret.fw + ' × ' + ret.fh );
|
|
}
|
|
|
|
if ( ret.thumbnail ) {
|
|
$('.thumbnail', '#thumbnail-head-' + postid).attr('src', ''+ret.thumbnail);
|
|
}
|
|
|
|
if ( ret.msg ) {
|
|
$('#imgedit-response-' + postid).html('<div class="updated"><p>' + ret.msg + '</p></div>');
|
|
}
|
|
|
|
if ( self._view ) {
|
|
self._view.save();
|
|
} else {
|
|
imageEdit.close(postid);
|
|
}
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Creates the image edit window.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID for the image.
|
|
* @param {string} nonce The nonce to verify the request.
|
|
* @param {object} view The image editor view to be used for the editing.
|
|
*
|
|
* @return {void|promise} Either returns void if the button was already activated
|
|
* or returns an instance of the image editor, wrapped in a promise.
|
|
*/
|
|
open : function( postid, nonce, view ) {
|
|
this._view = view;
|
|
|
|
var dfd, data, elem = $('#image-editor-' + postid), head = $('#media-head-' + postid),
|
|
btn = $('#imgedit-open-btn-' + postid), spin = btn.siblings('.spinner');
|
|
|
|
/*
|
|
* Instead of disabling the button, which causes a focus loss and makes screen
|
|
* readers announce "unavailable", return if the button was already clicked.
|
|
*/
|
|
if ( btn.hasClass( 'button-activated' ) ) {
|
|
return;
|
|
}
|
|
|
|
spin.addClass( 'is-active' );
|
|
|
|
data = {
|
|
'action': 'image-editor',
|
|
'_ajax_nonce': nonce,
|
|
'postid': postid,
|
|
'do': 'open'
|
|
};
|
|
|
|
dfd = $.ajax({
|
|
url: ajaxurl,
|
|
type: 'post',
|
|
data: data,
|
|
beforeSend: function() {
|
|
btn.addClass( 'button-activated' );
|
|
}
|
|
}).done(function( html ) {
|
|
elem.html( html );
|
|
head.fadeOut('fast', function(){
|
|
elem.fadeIn('fast');
|
|
btn.removeClass( 'button-activated' );
|
|
spin.removeClass( 'is-active' );
|
|
});
|
|
// Initialise the Image Editor now that everything is ready.
|
|
imageEdit.init( postid );
|
|
});
|
|
|
|
return dfd;
|
|
},
|
|
|
|
/**
|
|
* Initializes the cropping tool and sets a default cropping selection.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID.
|
|
*
|
|
* @return {void}
|
|
*/
|
|
imgLoaded : function(postid) {
|
|
var img = $('#image-preview-' + postid), parent = $('#imgedit-crop-' + postid);
|
|
|
|
// Ensure init has run even when directly loaded.
|
|
if ( 'undefined' === typeof this.hold.sizer ) {
|
|
this.init( postid );
|
|
}
|
|
|
|
this.initCrop(postid, img, parent);
|
|
this.setCropSelection( postid, { 'x1': 0, 'y1': 0, 'x2': 0, 'y2': 0, 'width': img.innerWidth(), 'height': img.innerHeight() } );
|
|
|
|
this.toggleEditor(postid, 0);
|
|
|
|
$( document ).trigger( 'image-editor-image-loaded' );
|
|
},
|
|
|
|
/**
|
|
* Manages keyboard focus in the Image Editor user interface.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
focusManager: function() {
|
|
/*
|
|
* Editor is ready, move focus to the first focusable element. Since the
|
|
* DOM update is pretty large, the timeout helps browsers update their
|
|
* accessibility tree to better support assistive technologies.
|
|
*/
|
|
setTimeout( function() {
|
|
$( '.imgedit-wrap' ).find( ':tabbable:first' ).focus();
|
|
}, 100 );
|
|
},
|
|
|
|
/**
|
|
* Initializes the cropping tool.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID.
|
|
* @param {HTMLElement} image The preview image.
|
|
* @param {HTMLElement} parent The preview image container.
|
|
*
|
|
* @return {void}
|
|
*/
|
|
initCrop : function(postid, image, parent) {
|
|
var t = this,
|
|
selW = $('#imgedit-sel-width-' + postid),
|
|
selH = $('#imgedit-sel-height-' + postid),
|
|
$image = $( image ),
|
|
$img;
|
|
|
|
// Already initialized?
|
|
if ( $image.data( 'imgAreaSelect' ) ) {
|
|
return;
|
|
}
|
|
|
|
t.iasapi = $image.imgAreaSelect({
|
|
parent: parent,
|
|
instance: true,
|
|
handles: true,
|
|
keys: true,
|
|
minWidth: 3,
|
|
minHeight: 3,
|
|
|
|
/**
|
|
* Sets the CSS styles and binds events for locking the aspect ratio.
|
|
*
|
|
* @ignore
|
|
*
|
|
* @param {jQuery} img The preview image.
|
|
*/
|
|
onInit: function( img ) {
|
|
// Ensure that the imgAreaSelect wrapper elements are position:absolute
|
|
// (even if we're in a position:fixed modal).
|
|
$img = $( img );
|
|
$img.next().css( 'position', 'absolute' )
|
|
.nextAll( '.imgareaselect-outer' ).css( 'position', 'absolute' );
|
|
/**
|
|
* Binds mouse down event to the cropping container.
|
|
*
|
|
* @return {void}
|
|
*/
|
|
parent.children().on( 'mousedown, touchstart', function(e){
|
|
var ratio = false, sel, defRatio;
|
|
|
|
if ( e.shiftKey ) {
|
|
sel = t.iasapi.getSelection();
|
|
defRatio = t.getSelRatio(postid);
|
|
ratio = ( sel && sel.width && sel.height ) ? sel.width + ':' + sel.height : defRatio;
|
|
}
|
|
|
|
t.iasapi.setOptions({
|
|
aspectRatio: ratio
|
|
});
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Event triggered when starting a selection.
|
|
*
|
|
* @ignore
|
|
*
|
|
* @return {void}
|
|
*/
|
|
onSelectStart: function() {
|
|
imageEdit.setDisabled($('#imgedit-crop-sel-' + postid), 1);
|
|
},
|
|
/**
|
|
* Event triggered when the selection is ended.
|
|
*
|
|
* @ignore
|
|
*
|
|
* @param {object} img jQuery object representing the image.
|
|
* @param {object} c The selection.
|
|
*
|
|
* @return {object}
|
|
*/
|
|
onSelectEnd: function(img, c) {
|
|
imageEdit.setCropSelection(postid, c);
|
|
},
|
|
|
|
/**
|
|
* Event triggered when the selection changes.
|
|
*
|
|
* @ignore
|
|
*
|
|
* @param {object} img jQuery object representing the image.
|
|
* @param {object} c The selection.
|
|
*
|
|
* @return {void}
|
|
*/
|
|
onSelectChange: function(img, c) {
|
|
var sizer = imageEdit.hold.sizer;
|
|
selW.val( imageEdit.round(c.width / sizer) );
|
|
selH.val( imageEdit.round(c.height / sizer) );
|
|
}
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Stores the current crop selection.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID.
|
|
* @param {object} c The selection.
|
|
*
|
|
* @return {boolean}
|
|
*/
|
|
setCropSelection : function(postid, c) {
|
|
var sel;
|
|
|
|
c = c || 0;
|
|
|
|
if ( !c || ( c.width < 3 && c.height < 3 ) ) {
|
|
this.setDisabled( $( '.imgedit-crop', '#imgedit-panel-' + postid ), 1 );
|
|
this.setDisabled( $( '#imgedit-crop-sel-' + postid ), 1 );
|
|
$('#imgedit-sel-width-' + postid).val('');
|
|
$('#imgedit-sel-height-' + postid).val('');
|
|
$('#imgedit-selection-' + postid).val('');
|
|
return false;
|
|
}
|
|
|
|
sel = { 'x': c.x1, 'y': c.y1, 'w': c.width, 'h': c.height };
|
|
this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 1);
|
|
$('#imgedit-selection-' + postid).val( JSON.stringify(sel) );
|
|
},
|
|
|
|
|
|
/**
|
|
* Closes the image editor.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID.
|
|
* @param {bool} warn Warning message.
|
|
*
|
|
* @return {void|bool} Returns false if there is a warning.
|
|
*/
|
|
close : function(postid, warn) {
|
|
warn = warn || false;
|
|
|
|
if ( warn && this.notsaved(postid) ) {
|
|
return false;
|
|
}
|
|
|
|
this.iasapi = {};
|
|
this.hold = {};
|
|
|
|
// If we've loaded the editor in the context of a Media Modal,
|
|
// then switch to the previous view, whatever that might have been.
|
|
if ( this._view ){
|
|
this._view.back();
|
|
}
|
|
|
|
// In case we are not accessing the image editor in the context of a View,
|
|
// close the editor the old-school way.
|
|
else {
|
|
$('#image-editor-' + postid).fadeOut('fast', function() {
|
|
$( '#media-head-' + postid ).fadeIn( 'fast', function() {
|
|
// Move focus back to the Edit Image button. Runs also when saving.
|
|
$( '#imgedit-open-btn-' + postid ).focus();
|
|
});
|
|
$(this).empty();
|
|
});
|
|
}
|
|
|
|
|
|
},
|
|
|
|
/**
|
|
* Checks if the image edit history is saved.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID.
|
|
*
|
|
* @return {boolean} Returns true if the history is not saved.
|
|
*/
|
|
notsaved : function(postid) {
|
|
var h = $('#imgedit-history-' + postid).val(),
|
|
history = ( h !== '' ) ? JSON.parse(h) : [],
|
|
pop = this.intval( $('#imgedit-undone-' + postid).val() );
|
|
|
|
if ( pop < history.length ) {
|
|
if ( confirm( $('#imgedit-leaving-' + postid).html() ) ) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
|
|
/**
|
|
* Adds an image edit action to the history.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {object} op The original position.
|
|
* @param {number} postid The post ID.
|
|
* @param {string} nonce The nonce.
|
|
*
|
|
* @return {void}
|
|
*/
|
|
addStep : function(op, postid, nonce) {
|
|
var t = this, elem = $('#imgedit-history-' + postid),
|
|
history = ( elem.val() !== '' ) ? JSON.parse( elem.val() ) : [],
|
|
undone = $( '#imgedit-undone-' + postid ),
|
|
pop = t.intval( undone.val() );
|
|
|
|
while ( pop > 0 ) {
|
|
history.pop();
|
|
pop--;
|
|
}
|
|
undone.val(0); // Reset.
|
|
|
|
history.push(op);
|
|
elem.val( JSON.stringify(history) );
|
|
|
|
t.refreshEditor(postid, nonce, function() {
|
|
t.setDisabled($('#image-undo-' + postid), true);
|
|
t.setDisabled($('#image-redo-' + postid), false);
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Rotates the image.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {string} angle The angle the image is rotated with.
|
|
* @param {number} postid The post ID.
|
|
* @param {string} nonce The nonce.
|
|
* @param {object} t The target element.
|
|
*
|
|
* @return {boolean}
|
|
*/
|
|
rotate : function(angle, postid, nonce, t) {
|
|
if ( $(t).hasClass('disabled') ) {
|
|
return false;
|
|
}
|
|
|
|
this.addStep({ 'r': { 'r': angle, 'fw': this.hold.h, 'fh': this.hold.w }}, postid, nonce);
|
|
},
|
|
|
|
/**
|
|
* Flips the image.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} axis The axle the image is flipped on.
|
|
* @param {number} postid The post ID.
|
|
* @param {string} nonce The nonce.
|
|
* @param {object} t The target element.
|
|
*
|
|
* @return {boolean}
|
|
*/
|
|
flip : function (axis, postid, nonce, t) {
|
|
if ( $(t).hasClass('disabled') ) {
|
|
return false;
|
|
}
|
|
|
|
this.addStep({ 'f': { 'f': axis, 'fw': this.hold.w, 'fh': this.hold.h }}, postid, nonce);
|
|
},
|
|
|
|
/**
|
|
* Crops the image.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID.
|
|
* @param {string} nonce The nonce.
|
|
* @param {object} t The target object.
|
|
*
|
|
* @return {void|boolean} Returns false if the crop button is disabled.
|
|
*/
|
|
crop : function (postid, nonce, t) {
|
|
var sel = $('#imgedit-selection-' + postid).val(),
|
|
w = this.intval( $('#imgedit-sel-width-' + postid).val() ),
|
|
h = this.intval( $('#imgedit-sel-height-' + postid).val() );
|
|
|
|
if ( $(t).hasClass('disabled') || sel === '' ) {
|
|
return false;
|
|
}
|
|
|
|
sel = JSON.parse(sel);
|
|
if ( sel.w > 0 && sel.h > 0 && w > 0 && h > 0 ) {
|
|
sel.fw = w;
|
|
sel.fh = h;
|
|
this.addStep({ 'c': sel }, postid, nonce);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Undoes an image edit action.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID.
|
|
* @param {string} nonce The nonce.
|
|
*
|
|
* @return {void|false} Returns false if the undo button is disabled.
|
|
*/
|
|
undo : function (postid, nonce) {
|
|
var t = this, button = $('#image-undo-' + postid), elem = $('#imgedit-undone-' + postid),
|
|
pop = t.intval( elem.val() ) + 1;
|
|
|
|
if ( button.hasClass('disabled') ) {
|
|
return;
|
|
}
|
|
|
|
elem.val(pop);
|
|
t.refreshEditor(postid, nonce, function() {
|
|
var elem = $('#imgedit-history-' + postid),
|
|
history = ( elem.val() !== '' ) ? JSON.parse( elem.val() ) : [];
|
|
|
|
t.setDisabled($('#image-redo-' + postid), true);
|
|
t.setDisabled(button, pop < history.length);
|
|
// When undo gets disabled, move focus to the redo button to avoid a focus loss.
|
|
if ( history.length === pop ) {
|
|
$( '#image-redo-' + postid ).focus();
|
|
}
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Reverts a undo action.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID.
|
|
* @param {string} nonce The nonce.
|
|
*
|
|
* @return {void}
|
|
*/
|
|
redo : function(postid, nonce) {
|
|
var t = this, button = $('#image-redo-' + postid), elem = $('#imgedit-undone-' + postid),
|
|
pop = t.intval( elem.val() ) - 1;
|
|
|
|
if ( button.hasClass('disabled') ) {
|
|
return;
|
|
}
|
|
|
|
elem.val(pop);
|
|
t.refreshEditor(postid, nonce, function() {
|
|
t.setDisabled($('#image-undo-' + postid), true);
|
|
t.setDisabled(button, pop > 0);
|
|
// When redo gets disabled, move focus to the undo button to avoid a focus loss.
|
|
if ( 0 === pop ) {
|
|
$( '#image-undo-' + postid ).focus();
|
|
}
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Sets the selection for the height and width in pixels.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID.
|
|
* @param {jQuery} el The element containing the values.
|
|
*
|
|
* @return {void|boolean} Returns false when the x or y value is lower than 1,
|
|
* void when the value is not numeric or when the operation
|
|
* is successful.
|
|
*/
|
|
setNumSelection : function( postid, el ) {
|
|
var sel, elX = $('#imgedit-sel-width-' + postid), elY = $('#imgedit-sel-height-' + postid),
|
|
x = this.intval( elX.val() ), y = this.intval( elY.val() ),
|
|
img = $('#image-preview-' + postid), imgh = img.height(), imgw = img.width(),
|
|
sizer = this.hold.sizer, x1, y1, x2, y2, ias = this.iasapi;
|
|
|
|
if ( false === this.validateNumeric( el ) ) {
|
|
return;
|
|
}
|
|
|
|
if ( x < 1 ) {
|
|
elX.val('');
|
|
return false;
|
|
}
|
|
|
|
if ( y < 1 ) {
|
|
elY.val('');
|
|
return false;
|
|
}
|
|
|
|
if ( x && y && ( sel = ias.getSelection() ) ) {
|
|
x2 = sel.x1 + Math.round( x * sizer );
|
|
y2 = sel.y1 + Math.round( y * sizer );
|
|
x1 = sel.x1;
|
|
y1 = sel.y1;
|
|
|
|
if ( x2 > imgw ) {
|
|
x1 = 0;
|
|
x2 = imgw;
|
|
elX.val( Math.round( x2 / sizer ) );
|
|
}
|
|
|
|
if ( y2 > imgh ) {
|
|
y1 = 0;
|
|
y2 = imgh;
|
|
elY.val( Math.round( y2 / sizer ) );
|
|
}
|
|
|
|
ias.setSelection( x1, y1, x2, y2 );
|
|
ias.update();
|
|
this.setCropSelection(postid, ias.getSelection());
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Rounds a number to a whole.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} num The number.
|
|
*
|
|
* @return {number} The number rounded to a whole number.
|
|
*/
|
|
round : function(num) {
|
|
var s;
|
|
num = Math.round(num);
|
|
|
|
if ( this.hold.sizer > 0.6 ) {
|
|
return num;
|
|
}
|
|
|
|
s = num.toString().slice(-1);
|
|
|
|
if ( '1' === s ) {
|
|
return num - 1;
|
|
} else if ( '9' === s ) {
|
|
return num + 1;
|
|
}
|
|
|
|
return num;
|
|
},
|
|
|
|
/**
|
|
* Sets a locked aspect ratio for the selection.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {number} postid The post ID.
|
|
* @param {number} n The ratio to set.
|
|
* @param {jQuery} el The element containing the values.
|
|
*
|
|
* @return {void}
|
|
*/
|
|
setRatioSelection : function(postid, n, el) {
|
|
var sel, r, x = this.intval( $('#imgedit-crop-width-' + postid).val() ),
|
|
y = this.intval( $('#imgedit-crop-height-' + postid).val() ),
|
|
h = $('#image-preview-' + postid).height();
|
|
|
|
if ( false === this.validateNumeric( el ) ) {
|
|
this.iasapi.setOptions({
|
|
aspectRatio: null
|
|
});
|
|
|
|
return;
|
|
}
|
|
|
|
if ( x && y ) {
|
|
this.iasapi.setOptions({
|
|
aspectRatio: x + ':' + y
|
|
});
|
|
|
|
if ( sel = this.iasapi.getSelection(true) ) {
|
|
r = Math.ceil( sel.y1 + ( ( sel.x2 - sel.x1 ) / ( x / y ) ) );
|
|
|
|
if ( r > h ) {
|
|
r = h;
|
|
if ( n ) {
|
|
$('#imgedit-crop-height-' + postid).val('');
|
|
} else {
|
|
$('#imgedit-crop-width-' + postid).val('');
|
|
}
|
|
}
|
|
|
|
this.iasapi.setSelection( sel.x1, sel.y1, sel.x2, r );
|
|
this.iasapi.update();
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Validates if a value in a jQuery.HTMLElement is numeric.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @memberof imageEdit
|
|
*
|
|
* @param {jQuery} el The html element.
|
|
*
|
|
* @return {void|boolean} Returns false if the value is not numeric,
|
|
* void when it is.
|
|
*/
|
|
validateNumeric: function( el ) {
|
|
if ( ! this.intval( $( el ).val() ) ) {
|
|
$( el ).val( '' );
|
|
return false;
|
|
}
|
|
}
|
|
};
|
|
})(jQuery);
|