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Media: Fix admin image cropping calculations. 

The admin image editor crop function introduced rounding errors by using a scaled image to calculate values. Fix uses the image at 100% scale for calculations. Also avoid recalculating selection when the selection position is changed, and prevent incorrect values after scaling or restoration.

Previously committed in [58456] and reverted in [58571]. The revert was due to a misattributed test failure.

Props Jossnaz, johnillo, shailu25, rachelbaker, sudipatel007, joedolson, kevin940726 , andrewserong, hmbashar.
Fixes #32282.
Built from https://develop.svn.wordpress.org/trunk@58915


git-svn-id: http://core.svn.wordpress.org/trunk@58311 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
joedolson 2024-08-19 20:47:17 +00:00
parent ce2b9f1fb2
commit a88967db6e
4 changed files with 84 additions and 32 deletions
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4
wp-admin/includes/image-edit.php
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@ -735,10 +735,10 @@ function image_edit_apply_changes( $image, $changes ) {
$w = $size['width'];
$h = $size['height'];
$scale = 1 / _image_get_preview_ratio( $w, $h ); // Discard preview scaling.
$scale = isset( $sel->r ) ? $sel->r : 1 / _image_get_preview_ratio( $w, $h ); // Discard preview scaling.
$image->crop( (int) ( $sel->x * $scale ), (int) ( $sel->y * $scale ), (int) ( $sel->w * $scale ), (int) ( $sel->h * $scale ) );
} else {
$scale = 1 / _image_get_preview_ratio( imagesx( $image ), imagesy( $image ) ); // Discard preview scaling.
$scale = isset( $sel->r ) ? $sel->r : 1 / _image_get_preview_ratio( imagesx( $image ), imagesy( $image ) ); // Discard preview scaling.
$image = _crop_image_resource( $image, $sel->x * $scale, $sel->y * $scale, $sel->w * $scale, $sel->h * $scale );
}
break;

108
wp-admin/js/image-edit.js
View File

@ -143,17 +143,12 @@
* @return {void}
*/
init : function(postid) {
var t = this, old = $('#image-editor-' + t.postid),
x = t.intval( $('#imgedit-x-' + postid).val() ),
y = t.intval( $('#imgedit-y-' + postid).val() );
var t = this, old = $('#image-editor-' + t.postid);
if ( t.postid !== postid && old.length ) {
t.close(t.postid);
}
t.hold.w = t.hold.ow = x;
t.hold.h = t.hold.oh = y;
t.hold.xy_ratio = x / y;
t.hold.sizer = parseFloat( $('#imgedit-sizer-' + postid).val() );
t.postid = postid;
$('#imgedit-response-' + postid).empty();
@ -188,6 +183,29 @@
$( document ).on( 'image-editor-ui-ready', this.focusManager );
},
/**
* Calculate the image size and save it to memory.
*
* @since 6.7.0
*
* @memberof imageEdit
*
* @param {number} postid The post ID.
*
* @return {void}
*/
calculateImgSize: function( postid ) {
var t = this,
x = t.intval( $( '#imgedit-x-' + postid ).val() ),
y = t.intval( $( '#imgedit-y-' + postid ).val() );
t.hold.w = t.hold.ow = x;
t.hold.h = t.hold.oh = y;
t.hold.xy_ratio = x / y;
t.hold.sizer = parseFloat( $( '#imgedit-sizer-' + postid ).val() );
t.currentCropSelection = null;
},
/**
* Toggles the wait/load icon in the editor.
*
@ -525,7 +543,7 @@
for ( n in history ) {
i = history[n];
if ( i.hasOwnProperty('c') ) {
op[n] = { 'c': { 'x': i.c.x, 'y': i.c.y, 'w': i.c.w, 'h': i.c.h } };
op[n] = { 'c': { 'x': i.c.x, 'y': i.c.y, 'w': i.c.w, 'h': i.c.h, 'r': i.c.r } };
} else if ( i.hasOwnProperty('r') ) {
op[n] = { 'r': i.r.r };
} else if ( i.hasOwnProperty('f') ) {
@ -860,6 +878,7 @@
if ( 'undefined' === typeof this.hold.sizer ) {
this.init( postid );
}
this.calculateImgSize( postid );
this.initCrop(postid, img, parent);
this.setCropSelection( postid, { 'x1': 0, 'y1': 0, 'x2': 0, 'y2': 0, 'width': img.innerWidth(), 'height': img.innerHeight() } );
@ -909,8 +928,6 @@
var t = this,
selW = $('#imgedit-sel-width-' + postid),
selH = $('#imgedit-sel-height-' + postid),
selX = $('#imgedit-start-x-' + postid),
selY = $('#imgedit-start-y-' + postid),
$image = $( image ),
$img;
@ -945,13 +962,16 @@
*
* @return {void}
*/
parent.children().on( 'mousedown, touchstart', function(e){
var ratio = false, sel, defRatio;
parent.children().on( 'mousedown touchstart', function(e) {
var ratio = false,
sel = t.iasapi.getSelection(),
cx = t.intval( $( '#imgedit-crop-width-' + postid ).val() ),
cy = t.intval( $( '#imgedit-crop-height-' + postid ).val() );
if ( e.shiftKey ) {
sel = t.iasapi.getSelection();
defRatio = t.getSelRatio(postid);
ratio = ( sel && sel.width && sel.height ) ? sel.width + ':' + sel.height : defRatio;
if ( cx && cy ) {
ratio = t.getSelRatio( postid );
} else if ( e.shiftKey && sel && sel.width && sel.height ) {
ratio = sel.width + ':' + sel.height;
}
t.iasapi.setOptions({
@ -1000,11 +1020,17 @@
* @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) );
selX.val( imageEdit.round(c.x1 / sizer) );
selY.val( imageEdit.round(c.y1 / sizer) );
var sizer = imageEdit.hold.sizer,
oldSel = imageEdit.currentCropSelection;
if ( oldSel != null && oldSel.width == c.width && oldSel.height == c.height ) {
return;
}
selW.val( Math.min( imageEdit.hold.w, imageEdit.round( c.width / sizer ) ) );
selH.val( Math.min( imageEdit.hold.h, imageEdit.round( c.height / sizer ) ) );
t.currentCropSelection = c;
}
});
},
@ -1022,7 +1048,11 @@
* @return {boolean}
*/
setCropSelection : function(postid, c) {
var sel;
var sel,
selW = $( '#imgedit-sel-width-' + postid ),
selH = $( '#imgedit-sel-height-' + postid ),
sizer = this.hold.sizer,
hold = this.hold;
c = c || 0;
@ -1037,7 +1067,15 @@
return false;
}
sel = { 'x': c.x1, 'y': c.y1, 'w': c.width, 'h': c.height };
// adjust the selection within the bounds of the image on 100% scale
var excessW = hold.w - ( Math.round( c.x1 / sizer ) + parseInt( selW.val() ) );
var excessH = hold.h - ( Math.round( c.y1 / sizer ) + parseInt( selH.val() ) );
var x = Math.round( c.x1 / sizer ) + Math.min( 0, excessW );
var y = Math.round( c.y1 / sizer ) + Math.min( 0, excessH );
// use 100% scaling to prevent rounding errors
sel = { 'r': 1, 'x': x, 'y': y, 'w': selW.val(), 'h': selH.val() };
this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 1);
$('#imgedit-selection-' + postid).val( JSON.stringify(sel) );
},
@ -1165,6 +1203,11 @@
}
this.closePopup(t);
this.addStep({ 'r': { 'r': angle, 'fw': this.hold.h, 'fh': this.hold.w }}, postid, nonce);
// Clear the selection fields after rotating.
$( '#imgedit-sel-width-' + postid ).val( '' );
$( '#imgedit-sel-height-' + postid ).val( '' );
this.currentCropSelection = null;
},
/**
@ -1187,6 +1230,11 @@
}
this.closePopup(t);
this.addStep({ 'f': { 'f': axis, 'fw': this.hold.w, 'fh': this.hold.h }}, postid, nonce);
// Clear the selection fields after flipping.
$( '#imgedit-sel-width-' + postid ).val( '' );
$( '#imgedit-sel-height-' + postid ).val( '' );
this.currentCropSelection = null;
},
/**
@ -1219,10 +1267,11 @@
}
// Clear the selection fields after cropping.
$('#imgedit-sel-width-' + postid).val('');
$('#imgedit-sel-height-' + postid).val('');
$('#imgedit-start-x-' + postid).val('0');
$('#imgedit-start-y-' + postid).val('0');
$( '#imgedit-sel-width-' + postid ).val( '' );
$( '#imgedit-sel-height-' + postid ).val( '' );
$( '#imgedit-start-x-' + postid ).val( '0' );
$( '#imgedit-start-y-' + postid ).val( '0' );
this.currentCropSelection = null;
},
/**
@ -1312,6 +1361,8 @@
img = $('#image-preview-' + postid), imgh = img.height(), imgw = img.width(),
sizer = this.hold.sizer, x1, y1, x2, y2, ias = this.iasapi;
this.currentCropSelection = null;
if ( false === this.validateNumeric( el ) ) {
return;
}
@ -1335,18 +1386,19 @@
if ( x2 > imgw ) {
x1 = 0;
x2 = imgw;
elX.val( Math.round( x2 / sizer ) );
elX.val( Math.min( this.hold.w, Math.round( x2 / sizer ) ) );
}
if ( y2 > imgh ) {
y1 = 0;
y2 = imgh;
elY.val( Math.round( y2 / sizer ) );
elY.val( Math.min( this.hold.h, Math.round( y2 / sizer ) ) );
}
ias.setSelection( x1, y1, x2, y2 );
ias.update();
this.setCropSelection(postid, ias.getSelection());
this.currentCropSelection = ias.getSelection();
}
},

2
wp-admin/js/image-edit.min.js vendored
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2
wp-includes/version.php
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@ -16,7 +16,7 @@
*
* @global string $wp_version
*/
$wp_version = '6.7-alpha-58914';
$wp_version = '6.7-alpha-58915';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.