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theatergf-gallery
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7 changed files with 293 additions and 361 deletions
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20
src/admin/gallery.php
View File

@ -23,6 +23,20 @@ function gallery_app_init($hook) {
// Wordpress Media Library Dialog
wp_enqueue_media();
// Image Cropping Library
/*wp_enqueue_style(
'cropper-css',
'https://unpkg.com/cropperjs@2.1.0/dist/cropper.css',
array(),
null
);
wp_enqueue_script(
'cropper-js',
'https://unpkg.com/cropperjs@2.1.0/dist/cropper.js',
array(),
null
);*/
/*
* Own scripts
*/
@ -37,12 +51,6 @@ function gallery_app_init($hook) {
array( 'jquery', 'jcrop' )
);
wp_localize_script( 'theatergf-gallery-admin-js', 'wpAPISettings', array(
'root' => esc_url_raw( rest_url() ),
'nonce' => wp_create_nonce( 'wp_rest' )
));
}
add_action('admin_enqueue_scripts', 'TheaterGF\Gallery\Admin\gallery_app_init');

8
src/admin/gallery/html.php
View File

@ -9,11 +9,13 @@ function admin_gallery_html($args) {
<div class="theatergf gallery_app">
<div id="theatergf-editor" class="theatergf image-editor">
<img class="editor-image">
</div>
<div class="editor-button-row">
<button id="theatergf-select-image" class="button button-primary">Select image</button>
<button id="theatergf-edit-save" class="button button-primary">Save</button
<div style="height: 15px"></div>
<div class="theatergf image-edit-wrap">
<canvas id="theatergf-image-editor"></canvas>
</div>

522
src/admin/gallery/script.js
View File

@ -1,57 +1,116 @@
const devicePixelRatio = window.devicePixelRatio || 1;
function clamp(n, min, max) {
return Math.max(Math.min(n, max), min)
}
function round(n, base = 10) {
return Math.round(n / base) * base;
}
function floor(n, base = 10) {
return Math.floor(n / base) * base;
}
function ceil(n, base = 10) {
return Math.ceil(n / base) * base;
class ImageCropper {
constructor(canvas) {
if (!(canvas instanceof HTMLCanvasElement)) {
throw TypeError('canvas must be a HTMLCanvasElement');
}
this._preview = canvas;
this._preview_ctx = canvas.getContext('2d');
this._preview_ctx.reset();
const dimensions = this._preview.getBoundingClientRect();
console.log(dimensions);
console.log(this._preview.width, this._preview.height);
this._preview.width = dimensions.width * devicePixelRatio;
this._preview.height = dimensions.height * devicePixelRatio;
this._preview_ctx.setTransform(devicePixelRatio, 0, 0, devicePixelRatio, 0, 0);
}
showImage(image_src) {
this._image = new Image();
this._image.src = image_src;
this._image.addEventListener('load', (e) => {
const dimensions = this._preview.getBoundingClientRect();
const scale = {
x: dimensions.width / this._image.naturalWidth,
y: dimensions.height / this._image.naturalHeight
}
const ratio = Math.min(scale.x, scale.y);
const position = {
x: (dimensions.width - this._image.naturalWidth * ratio) / 2,
y: (dimensions.height - this._image.naturalHeight * ratio) / 2,
};
this._preview_ctx.drawImage(this._image, position.x, position.y, this._image.naturalWidth * ratio, this._image.naturalHeight * ratio);
})
}
doCrop() {
this._shadow = document.createElement('canvas');
this._shadow.style.display = 'none';
this._shadow_ctx = canvas.getContext('2d');
}
}
function getRelativeClientRect(element) {
const element_bounds = element.getBoundingClientRect();
const parents_bounds = element.parentElement.getBoundingClientRect();
return new DOMRect(
element_bounds.x - parents_bounds.x,
element_bounds.y - parents_bounds.y,
element_bounds.width,
element_bounds.height
);
}
/*jQuery(document).ready( ($) => {
let wp_file_selector_frame;
let image_cropper;
$('#theatergf-select-image').on('click', (event) => {
// don't open browser file select
event.preventDefault();
if (wp_file_selector_frame) {
wp_file_selector_frame.open();
}
wp_file_selector_frame = wp.media({
title: 'Select Image',
button: {
text: 'Use Image'
},
multiple: false
});
wp_file_selector_frame.on('select', () => {
const file = wp_file_selector_frame.state().get('selection').first().toJSON();
image_cropper = new ImageCropper(document.getElementById('theatergf-image-editor'));
//image_cropper.showImage('http://localhost:8000/wp-content/uploads/2026/03/Kishon002.jpg');
image_cropper.showImage(file.url);
//document.getElementById('theatergf-image-preview').src = file.url;
});
wp_file_selector_frame.open();
});
});*/
class ResizableBox {
constructor(parent, bounding, resolution, aspectRatio = null) {
this.DIRECTIONS = {
nw: { sign: { x: -1, y: -1 }, anchor: 'se' },
ne: { sign: { x: +1, y: -1 }, anchor: 'sw' },
sw: { sign: { x: -1, y: +1 }, anchor: 'ne' },
se: { sign: { x: +1, y: +1 }, anchor: 'nw' }
}
this.bounding = bounding;
this.resolution = resolution;
constructor(element, aspectRatio = null) {
this.element = element;
this.aspectRatio = aspectRatio;
this.mouseStart = { x: 0, y: 0 };
this.maxDelta = { x: 0, y: 0 };
this.minDelta = { x: 0, y: 0 };
this.mouseStart = {
x: 0,
y: 0
}
this.elemStart = new DOMRect();
this.direction = undefined;
this._constructElement(parent);
this.res_scale = {
x: resolution.x / bounding.width,
y: resolution.y / bounding.height
this.elemStart = {
left: 0,
top: 0,
width: element.style.width,
height: element.style.height,
corner_pos: {
x: 0,
y: 0
}
};
this.direction = undefined;
const dragMouseMove = (event) => {
event.preventDefault();
@ -61,20 +120,113 @@ class ResizableBox {
y: event.clientY - this.mouseStart.y
};
if (this.direction) {
this.resize(offset, this.direction, this.aspectRatio);
} else {
this.move(offset);
const delta = {...offset};
if (this.direction && aspectRatio) {
const {anchor, sign} = (() => {
switch (this.direction) {
case 'nw':
return {
anchor: {
x: this.elemStart.left + this.elemStart.width,
y: this.elemStart.top + this.elemStart.height
},
sign: {
x: -1,
y: -1
}
}
case 'ne':
return {
anchor: {
x: this.elemStart.left,
y: this.elemStart.top + this.elemStart.height
},
sign: {
x: +1,
y: -1
}
}
case 'sw':
return {
anchor: {
x: this.elemStart.left + this.elemStart.width,
y: this.elemStart.top
},
sign: {
x: -1,
y: +1
}
}
case 'se':
return {
anchor: {
x: this.elemStart.left,
y: this.elemStart.top
},
sign: {
x: +1,
y: +1
}
}
}
})()
const px = this.elemStart.corner_pos.x + offset.x
const py = this.elemStart.corner_pos.y + offset.y
const dx = sign.x * (px - anchor.x)
const dy = sign.y * (py - anchor.y)
const sh = dx/this.elemStart.width
const sv = dy/this.elemStart.height
const dv = Math.abs(dx - this.elemStart.width)
const dh = Math.abs(dy - this.elemStart.height)
const s = (dv > dh) ? sv : sh
delta.x = sign.x * (s * this.elemStart.width - this.elemStart.width)
delta.y = sign.y * (s * this.elemStart.height - this.elemStart.height)
}
switch(this.direction) {
case 'nw':
this.element.style.left = (this.elemStart.left + delta.x) + "px";
this.element.style.top = (this.elemStart.top + delta.y) + "px";
this.element.style.width = (this.elemStart.width - delta.x) + "px";
this.element.style.height = (this.elemStart.height - delta.y) + "px";
break;
case 'ne':
this.element.style.top = (this.elemStart.top + delta.y) + "px";
this.element.style.width = (this.elemStart.width + delta.x) + "px";
this.element.style.height = (this.elemStart.height - delta.y) + "px";
break;
case 'sw':
this.element.style.left = (this.elemStart.left + delta.x) + "px";
this.element.style.width = (this.elemStart.width - delta.x) + "px";
this.element.style.height = (this.elemStart.height + delta.y) + "px";
break;
case 'se':
this.element.style.width = (this.elemStart.width + delta.x) + "px";
this.element.style.height = (this.elemStart.height + delta.y) + "px";
break;
// moving is the default
default:
this.element.style.left = (this.elemStart.left + offset.x) + "px";
this.element.style.top = (this.elemStart.top + offset.y) + "px";
}
}
const dragMouseUp = (_) => {
this.element.classList.remove("moving");
this.direction = undefined;
this.direction = undefined
document.removeEventListener('mousemove', dragMouseMove);
document.removeEventListener('mouseup', dragMouseUp);
document.removeEventListener('mouseup', dragMouseUp);
};
const dragMouseDown = (event) => {
@ -83,142 +235,47 @@ class ResizableBox {
this.mouseStart.x = event.clientX;
this.mouseStart.y = event.clientY;
this.elemStart = getRelativeClientRect(this.element)
this.elemStart.left = this.element.offsetLeft;
this.elemStart.top = this.element.offsetTop;
this.elemStart.width = this.element.offsetWidth;
this.elemStart.height = this.element.offsetHeight;
this.direction = [...event.target.classList].find(c => ["nw","ne","sw","se"].includes(c));
if (this.direction) {
const handle_size = getRelativeClientRect(this.element.querySelector(".handle"));
this.minDelta.x = -1 * (this.elemStart.width - 2*handle_size.width);
this.minDelta.y = -1 * (this.elemStart.height - 2*handle_size.height);
switch (this.direction) {
case 'nw':
this.maxDelta.x = this.elemStart.left - this.bounding.left;
this.maxDelta.y = this.elemStart.top - this.bounding.top;
break;
case 'ne':
this.maxDelta.x = this.bounding.right - this.elemStart.right;
this.maxDelta.y = this.elemStart.top - this.bounding.top;
break;
case 'sw':
this.maxDelta.x = this.elemStart.left - this.bounding.left;
this.maxDelta.y = this.bounding.bottom - this.elemStart.bottom;
break;
case 'se':
this.maxDelta.x = this.bounding.right - this.elemStart.right;
this.maxDelta.y = this.bounding.bottom - this.elemStart.bottom;
break;
}
switch (this.direction) {
case 'nw':
this.elemStart.corner_pos.x = this.element.offsetLeft;
this.elemStart.corner_pos.y = this.element.offsetTop;
break;
case 'ne':
this.elemStart.corner_pos.x = this.element.offsetLeft + this.element.offsetWidth;
this.elemStart.corner_pos.y = this.element.offsetTop;
break;
case 'sw':
this.elemStart.corner_pos.x = this.element.offsetLeft;
this.elemStart.corner_pos.y = this.element.offsetTop + this.element.offsetHeight;
break;
case 'se':
this.elemStart.corner_pos.x = this.element.offsetLeft + this.element.offsetWidth;
this.elemStart.corner_pos.y = this.element.offsetTop + this.element.offsetHeight;
break;
}
this.element.classList.add('moving');
document.addEventListener('mousemove', dragMouseMove);
document.addEventListener('mouseup', dragMouseUp);
document.addEventListener('mouseup', dragMouseUp);
};
this.element.addEventListener('mousedown', dragMouseDown);
this.createHandles();
}
move(delta) {
this.element.style.left = clamp(this.elemStart.left + delta.x, this.bounding.left, this.bounding.right - this.elemStart.width) + "px";
this.element.style.top = clamp(this.elemStart.top + delta.y, this.bounding.top, this.bounding.bottom - this.elemStart.height) + "px";
}
resize(delta, direction, handle_aspect_ratio = true) {
console.log(delta)
const sign = this.DIRECTIONS[direction].sign;
const normalized = {
x: delta.x * sign.x,
y: delta.y * sign.y
};
console.log(normalized)
console.log(this.minDelta)
console.log(this.maxDelta);
if (handle_aspect_ratio) {
//delta = this._applyAspectRatio(delta.x, delta.y, direction)
if (Math.abs(normalized.x) > Math.abs(normalized.y * this.aspectRatio)) {
normalized.x = clamp(normalized.x,
Math.max(this.minDelta.x, this.minDelta.y * this.aspectRatio),
Math.min(this.maxDelta.x, this.maxDelta.y * this.aspectRatio));
normalized.y = normalized.x / this.aspectRatio;
} else {
normalized.y = clamp(normalized.y,
Math.max(this.minDelta.y, this.minDelta.x / this.aspectRatio),
Math.min(this.maxDelta.y, this.maxDelta.x / this.aspectRatio));
normalized.x = normalized.y * this.aspectRatio;
}
} else {
normalized.x = clamp(normalized.x, this.minDelta.x, this.maxDelta.x);
normalized.y = clamp(normalized.y, this.minDelta.y, this.maxDelta.y);
}
delta.x = normalized.x * sign.x;
delta.y = normalized.y * sign.y;
console.log(delta)
switch(this.direction) {
case 'nw':
this.element.style.left = (this.elemStart.left + delta.x) + "px";
this.element.style.top = (this.elemStart.top + delta.y) + "px";
this.element.style.width = (this.elemStart.width - delta.x) + "px";
this.element.style.height = (this.elemStart.height - delta.y) + "px";
break;
case 'ne':
this.element.style.top = (this.elemStart.top + delta.y) + "px";
this.element.style.width = (this.elemStart.width + delta.x) + "px";
this.element.style.height = (this.elemStart.height - delta.y) + "px";
break;
case 'sw':
this.element.style.left = (this.elemStart.left + delta.x) + "px";
this.element.style.width = (this.elemStart.width - delta.x) + "px";
this.element.style.height = (this.elemStart.height + delta.y) + "px";
break;
case 'se':
this.element.style.width = (this.elemStart.width + delta.x) + "px";
this.element.style.height = (this.elemStart.height + delta.y) + "px";
break;
}
}
_constructElement(parent) {
parent.querySelector('.selector')?.remove();
this.element = document.createElement('div');
this.element.classList.add('selector');
if (this.aspectRatio) {
if (this.bounding.width > this.bounding.height * this.aspectRatio) {
this.element.style.width = (this.bounding.height * this.aspectRatio - 2) + "px";
this.element.style.height = (this.bounding.height - 2) + "px";
this.element.style.left = (this.bounding.width - this.bounding.height * this.aspectRatio) / 2 + this.bounding.left + "px";
this.element.style.top = this.bounding.top + "px";
} else {
this.element.style.width = (this.bounding.width - 2) + "px";
this.element.style.height = (this.bounding.width / this.aspectRatio - 2) + "px";
this.element.style.left = this.bounding.left + "px";
this.element.style.top = (this.bounding.height - this.bounding.width / this.aspectRatio) / 2 + this.bounding.top + "px";
}
} else {
this.element.style.left = this.bounding.offsetLeft + "px";
this.element.style.top = this.bounding.offsetTop + "px";
this.element.style.width = this.bounding.clientWidth + "px";
this.element.style.height = this.bounding.clientHeight + "px";
createHandles() {
const handles = this.element.querySelectorAll('.handle');
for (const handle of handles) {
this.element.removeChild(handle);
}
const neHandle = document.createElement('div');
@ -237,53 +294,10 @@ class ResizableBox {
this.element.appendChild(nwHandle);
this.element.appendChild(seHandle);
this.element.appendChild(swHandle);
parent.appendChild(this.element);
}
_mapCorner(rect, dir) {
const map = {
nw: { x: rect.left, y: rect.top },
ne: { x: rect.right, y: rect.top },
sw: { x: rect.left, y: rect.bottom },
se: { x: rect.right, y: rect.bottom }
};
return map[dir];
}
_applyAspectRatio(dx, dy, direction) {
const sign = this.DIRECTIONS[direction].sign;
const anchor = this._mapCorner(getRelativeClientRect(this.element), this.DIRECTIONS[direction].anchor);
const handle_size = getRelativeClientRect(this.element.querySelector(".handle"));
const sh = 1 + dx / this.elemStart.width
const sv = 1 + dy / this.elemStart.height
const dv = Math.abs(dx)
const dh = Math.abs(dy)
const s = (dv > dh) ? sv : sh
const sMaxX = (sign.x === +1)
? (this.bounding.right - anchor.x) / this.elemStart.width
: (anchor.x - this.bounding.left) / this.elemStart.width
const sMaxY = (sign.y === +1)
? (this.bounding.bottom - anchor.y) / this.elemStart.height
: (anchor.y - this.bounding.top) / this.elemStart.height
const sMin = Math.max(2*handle_size.width / this.elemStart.width, 2*handle_size.height / this.elemStart.height);
const sClamped = Math.max(Math.min(s, sMaxX, sMaxY), sMin);
return {
x: sign.x * (sClamped * this.elemStart.width - this.elemStart.width),
y: sign.y * (sClamped * this.elemStart.height - this.elemStart.height)
};
getRect() {
return new DOMRect(this.element.offsetLeft, this.element.offsetTop, this.element.offsetWidth, this.element.offsetHeight);
}
}
@ -293,58 +307,45 @@ class Editor {
constructor(editorElement, aspectRatio) {
this._editor = editorElement;
this.aspectRatio = aspectRatio;
this._imgElement = undefined;
}
loadImage(url) {
this._imgElement = this._editor.querySelector(".editor-image");
this._imgElement.src = url;
const imgElement = new Image()
imgElement.classList.add("editor-image");
imgElement.src = url;
this._editor.replaceChildren(imgElement);
const that = this;
this._imgElement.addEventListener('load', (_) => {
imgElement.addEventListener('load', (_) => {
this._imgElement.style.left = (this._editor.clientWidth - this._imgElement.offsetWidth) / 2 + "px";
this._imgElement.style.top = (this._editor.clientHeight - this._imgElement.offsetHeight) / 2 + "px";
const size = {
width: imgElement.offsetWidth,
height: imgElement.offsetHeight
};
this._cutArea = new ResizableBox(this._editor, getRelativeClientRect(this._imgElement), {}, 4/3);
if (size.width > size.height * that.aspectRatio) {
size.width = size.height * that.aspectRatio;
} else {
size.height = size.width / that.aspectRatio;
}
that._createSelectionBox(size.width, size.height);
document.querySelector("#theatergf-edit-save").style.visibility = "visible";
});
}
save() {
_createSelectionBox(width, height) {
const selector = document.createElement('div');
selector.classList.add('selector');
const relative_position = {
x: (this._cutSelector.offsetLeft + 1 - this._imgElement.offsetLeft) / this._imgElement.clientWidth,
y: (this._cutSelector.offsetTop + 1 - this._imgElement.offsetTop) / this._imgElement.clientHeight,
width: (this._cutSelector.clientWidth - 2) / this._imgElement.clientWidth,
height: (this._cutSelector.clientHeight - 2) / this._imgElement.clientHeight
}
selector.style.width = (width - 1) + "px";
selector.style.height = (height - 1) + "px";
const mapped_region = {
x: relative_position.x * this._imgElement.naturalWidth,
y: relative_position.y * this._imgElement.naturalHeight,
width: relative_position.width * this._imgElement.naturalWidth,
height: relative_position.height * this._imgElement.naturalHeight
}
this._cutSelector = selector;
this._editor.appendChild(selector);
console.log(mapped_region)
fetch(wpAPISettings.root + 'theatergf/gallery/v1/crop/new', {
method: 'POST',
headers: {
'X-WP-Nonce': wpAPISettings.nonce,
'Content-Type': 'application/json'
},
body: JSON.stringify({
img_id: 53,
x: mapped_region.x,
y: mapped_region.y,
width: mapped_region.width,
height: mapped_region.height
})
}).then((response) => response.json().then((json) => console.log(json))).catch((error) => console.log(error));
this._cutArea = new ResizableBox(selector, width/height);
}
}
@ -352,7 +353,7 @@ class Editor {
jQuery(document).ready( ($) => {
let wp_file_selector_frame = null;
let editor = new Editor(document.querySelector("#theatergf-editor"), 2/1);
let editor = new Editor(document.querySelector("#theatergf-editor"), 4/3);
$("#theatergf-select-image").on("click", (event) => {
event.preventDefault();
@ -374,17 +375,10 @@ jQuery(document).ready( ($) => {
wp_file_selector_frame.on('select', () => {
const file = wp_file_selector_frame.state().get('selection').first().toJSON();
console.log(file)
editor.loadImage(file.url);
});
wp_file_selector_frame.open();
})
$("#theatergf-edit-save").on("click", (event) => {
event.preventDefault();
editor.save();
})
})

27
src/admin/gallery/style.css
View File

@ -15,14 +15,16 @@
max-height: 100%;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background-color: white;
}
.selector {
position: absolute;
border: lightblue 1px solid;
opacity: 50%;
border: blue 1px solid;
/*top: 50%;
left: 50%;*/
@ -38,7 +40,7 @@
width: 10px;
height: 10px;
border: lightblue 1px solid;
border: blue 1px solid;
position: absolute;
/*transform: translate(-50%, -50%);*/
@ -74,16 +76,19 @@
}
}
.editor-button-row {
display: flex;
flex-direction: row;
justify-content: space-between;
.image-edit-wrap {
aspect-ratio: 2 / 1;
width: 75%;
height: 75%;
#theatergf-edit-save {
visibility: hidden;
background-color: gray;
#theatergf-image-editor {
width: 100%;
}
#theatergf-image-editor-shadow {
display: none;
}
}
}

15
src/backend/backend.php
View File

@ -1,15 +0,0 @@
<?php
namespace TheaterGF\Gallery\Backend;
require_once __DIR__ . '/util.php';
require_once __DIR__ . '/endpoints/crop.php';
add_action( 'rest_api_init', function () {
$namespace = 'theatergf/gallery/v1';
$crop_controller = new Rest\CROP_Endpoints($namespace, 'crop');
$crop_controller->register_routes();
});

60
src/backend/endpoints/crop.php
View File

@ -1,60 +0,0 @@
<?php
namespace TheaterGF\Gallery\Backend\Rest;
class CROP_Endpoints extends \WP_REST_Controller {
public function __construct( $namespace, $base_path ) {
$this->namespace = $namespace;
$this->rest_base = $base_path;
}
public function register_routes() {
register_rest_route($this->namespace, '/' . $this->rest_base . '/new', [
'methods' => \WP_REST_Server::CREATABLE,
'callback' => [ $this, 'create_item' ],
'permission_callback' => [ $this, 'create_item_permissions_check' ],
'args' => [
'img_id' => [
'required' => true,
'validate_callback' => function ( $param, $request, $key) { return wp_attachment_is_image($param); }
],
'x' => [
'required' => true,
'validate_callback' => function ( $param, $request, $key) { return is_numeric($param) && $param > 0; }
],
'y' => [
'required' => true,
'validate_callback' => function ( $param, $request, $key) { return is_numeric($param) && $param > 0; }
],
'width' => [
'required' => true,
'validate_callback' => function ( $param, $request, $key) { return is_numeric($param) && $param > 0; }
],
'height' => [
'required' => true,
'validate_callback' => function ( $param, $request, $key) { return is_numeric($param) && $param > 0; }
]
]
]);
}
public function create_item_permissions_check( $request ) {
if ( ! is_user_logged_in()) {
return new \WP_Error( 'unauthenticated', 'Log in to interact with this endpoint.', array( 'status' => 401 ));
}
if ( ! (is_user_logged_in() && current_user_can( 'edit_pages' )) ) {
return new \WP_Error( 'forbidden', 'No Permission for this endpoint.', array( 'status' => 403 ));
}
return true;
}
public function create_item( $request ) {
return true;
}
}

2
theatergf-gallery.php
View File

@ -34,5 +34,3 @@ add_action( 'init', 'TheaterGF\Gallery\block_init' );
if ( is_admin() ) {
require_once __DIR__ . '/src/admin/admin.php';
}
require_once __DIR__ . '/src/backend/backend.php';