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Fix cropper

master
Eduard Kuzmenko 4 years ago
parent
fe8a54ea62
commit
97ef3b2276
3 changed files with 166 additions and 201 deletions
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  1. 218
      src/lib/cropper.ts
  2. 70
      src/scss/partials/_crop.scss
  3. 73
      src/scss/style.scss

218
src/lib/cropper.ts
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@ -1,32 +1,29 @@ @@ -1,32 +1,29 @@
function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCanvasElement) {
var cropComponent: HTMLDivElement
, container: HTMLDivElement
, crop_img: HTMLImageElement
, event_state: {
mouse_x?: number,
mouse_y?: number,
container_width?: number,
container_height?: number,
container_left?: number,
container_top?: number
} = {}
, ratio = 1.0
, keyZoomValue = 4.0
, MINWIDTH = 50
//, MINHEIGHT = 50
, CROPWIDTH = 200
, CROPHEIGHT = 200
, cropLeft = 0
, cropTop = 0
, cropWidth = 0
, cropHeight = 0;
if(image_target.complete) {
init();
} else {
image_target.onload = init;
}
function resizeableImage(originalImage: HTMLImageElement, canvas?: HTMLCanvasElement) {
let cropComponent: HTMLDivElement,
container: HTMLDivElement,
cropImage: HTMLImageElement,
event_state: Partial<{
mouse_x: number,
mouse_y: number,
container_width: number,
container_height: number,
container_left: number,
container_top: number
}> = {},
keyZoomValue = 4.0,
MINWIDTH = 50,
MINHEIGHT = 50,
CROPWIDTH = 200,
CROPHEIGHT = 200,
cropLeft = 0,
cropTop = 0,
cropWidth = 0,
cropHeight = 0,
scaledRatio = 0;
if(originalImage.complete) init();
else originalImage.onload = init;
function removeHandlers() {
container.removeEventListener('mousedown', startMoving);
@ -41,7 +38,7 @@ function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCan @@ -41,7 +38,7 @@ function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCan
cropComponent.remove();
container.remove();
crop_img.remove();
cropImage.remove();
}
function addHandlers() {
@ -54,70 +51,68 @@ function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCan @@ -54,70 +51,68 @@ function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCan
}
function init() {
var wraper, left, top;
if (image_target.dataset.isCrop) {
throw 'image is already crop'
}
originalImage.classList.add('crop-blur');
originalImage.draggable = false;
image_target.dataset.isCrop = 'true';
image_target.classList.add('crop-blur');
image_target.draggable = false;
cropImage = new Image();
cropImage.src = originalImage.src;
cropImage.draggable = false;
cropImage.classList.add('crop-overlay-image');
crop_img = new Image();
crop_img.crossOrigin = image_target.crossOrigin;
crop_img.src = image_target.src;
crop_img.draggable = false;
if(!resize_canvas) {
resize_canvas = document.createElement('canvas');
if(!canvas) {
canvas = document.createElement('canvas');
}
cropComponent = document.createElement('div');
cropComponent.classList.add('crop-component');
container = document.createElement('div');
container.classList.add('overlay');
container.classList.add('crop-overlay');
let overlayColor = document.createElement('div');
const overlayColor = document.createElement('div');
overlayColor.classList.add('crop-overlay-color');
cropComponent.appendChild(container);
wraper = image_target.parentNode;
wraper.appendChild(cropComponent);
cropComponent.appendChild(crop_img);
cropComponent.appendChild(image_target);
const wrapper = originalImage.parentNode as HTMLElement;
wrapper.appendChild(cropComponent);
cropComponent.appendChild(cropImage);
cropComponent.appendChild(originalImage);
cropComponent.appendChild(overlayColor);
container.appendChild(crop_img);
container.appendChild(cropImage);
cropImage.style.maxWidth = originalImage.width + 'px';
crop_img.style.maxWidth = image_target.width + 'px';
scaledRatio = originalImage.naturalWidth / originalImage.offsetWidth;
left = image_target.offsetWidth / 2 - CROPWIDTH / 2;
top = image_target.offsetHeight / 2 - CROPHEIGHT / 2;
const left = originalImage.offsetWidth / 2 - CROPWIDTH / 2;
const top = originalImage.offsetHeight / 2 - CROPHEIGHT / 2;
updateCropSize(CROPWIDTH, CROPHEIGHT);
updateCropImage(left, top);
updateContainer(left, top);
addHandlers();
//crop();
}
function updateCropSize(width: number, height: number) {
cropWidth = width * scaledRatio;
cropHeight = height * scaledRatio;
container.style.width = width + 'px';
container.style.height = height + 'px';
}
function updateCropImage(left: number, top: number) {
cropLeft = -left * ratio;
cropTop = -top * ratio;
cropTop = top * scaledRatio;
cropLeft = left * scaledRatio;
crop_img.style.top = -top + 'px';
crop_img.style.left = -left + 'px';
cropImage.style.top = -top + 'px';
cropImage.style.left = -left + 'px';
}
function updateContainer(left: number, top: number) {
let _top = top + (CROPWIDTH / 2) + 'px';
let _left = left + (CROPHEIGHT / 2) + 'px';
container.style.top = _top;
container.style.left = _left;
container.style.top = top + 'px';
container.style.left = left + 'px';
}
// Save the initial event details and container state
@ -134,18 +129,18 @@ function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCan @@ -134,18 +129,18 @@ function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCan
function imgZoom(zoom: number) {
zoom = zoom * Math.PI * 2
var newWidth = Math.floor(container.clientWidth + zoom)
, newHeight = Math.floor(container.clientHeight + zoom)
, w = crop_img.clientWidth
, h = crop_img.clientHeight
, left
, top
, right
, bottom;
let newWidth = Math.floor(container.clientWidth + zoom),
newHeight = Math.floor(container.clientHeight + zoom),
w = cropImage.clientWidth,
h = cropImage.clientHeight,
left: number,
top: number,
right: number,
bottom: number;
if(newWidth < MINWIDTH) {
return;
} else if (newWidth > w) {
} else if(newWidth > w) {
return;
}
@ -154,20 +149,11 @@ function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCan @@ -154,20 +149,11 @@ function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCan
right = left + newWidth;
bottom = top + newHeight;
if(left < 0) {
left = 0;
}
if(top < 0) {
top = 0;
}
if(right > w) {
return;
}
if(bottom > h) {
return;
}
if(left < 0) left = 0;
if(top < 0) top = 0;
ratio = CROPWIDTH / newWidth;
if(right > w) return;
if(bottom > h) return;
updateCropSize(newWidth, newWidth);
updateCropImage(left, top);
@ -215,68 +201,48 @@ function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCan @@ -215,68 +201,48 @@ function resizeableImage(image_target: HTMLImageElement, resize_canvas?: HTMLCan
}
function moving(e: any) {
var curuntTouch = {x: 0, y: 0}
, left
, top
, w
, h;
let currentTouch = {x: 0, y: 0},
left: number,
top: number,
w: number,
h: number;
e.preventDefault();
e.stopPropagation();
curuntTouch.x = e.pageX || e.touches && e.touches[0].pageX;
curuntTouch.y = e.pageY || e.touches && e.touches[0].pageY;
currentTouch.x = e.pageX || e.touches && e.touches[0].pageX;
currentTouch.y = e.pageY || e.touches && e.touches[0].pageY;
left = curuntTouch.x - (event_state.mouse_x - event_state.container_left);
top = curuntTouch.y - (event_state.mouse_y - event_state.container_top);
left = currentTouch.x - (event_state.mouse_x - event_state.container_left);
top = currentTouch.y - (event_state.mouse_y - event_state.container_top);
w = container.offsetWidth;
h = container.offsetHeight;
if(left < 0) {
left = 0;
} else if (left > crop_img.offsetWidth - w) {
left = crop_img.offsetWidth - w;
}
if(top < 0) {
top = 0;
} else if (top > crop_img.offsetHeight - h) {
top = crop_img.offsetHeight - h;
}
if(left < 0) left = 0;
else if(left > cropImage.offsetWidth - w) left = cropImage.offsetWidth - w;
if(top < 0) top = 0;
else if(top > cropImage.offsetHeight - h) top = cropImage.offsetHeight - h;
updateCropImage(left, top);
updateContainer(left, top);
//crop();
}
function crop() {
cropWidth = crop_img.width * ratio;
cropHeight = crop_img.height * ratio;
resize_canvas.width = CROPWIDTH;
resize_canvas.height = CROPHEIGHT;
canvas.width = cropWidth;
canvas.height = cropHeight;
var ctx = resize_canvas.getContext('2d');
ctx.drawImage(crop_img,
const ctx = canvas.getContext('2d');
ctx.drawImage(originalImage,
cropLeft, cropTop,
cropWidth, cropHeight,
0, 0,
cropWidth, cropHeight
);
}
return {crop, removeHandlers};
/* function openCropCanvasImg() {
crop();
try {
var base64Img = resize_canvas.toDataURL('image/png', 1.0);
window.open(base64Img);
} catch(e) {
alert(e);
} finally {
// removeHandlers();
}
} */
}
//resizeableImage(document.querySelector('.crop-image'));
export default resizeableImage;

70
src/scss/partials/_crop.scss
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@ -0,0 +1,70 @@ @@ -0,0 +1,70 @@
.crop {
.overlay::selection,
&-component::selection {
background: transparent;
}
/* .crop-blur {
-webkit-filter: blur(10px) sepia(0.2);
filter: blur(10px) sepia(0.2);
} */
&-image,
&-overlay-image {
width: auto;
height: auto;
/* можно явно указать либо ширину, либо высоту */
/* width: 500px; */
/*либо height: 300px;*/
display: block;
object-fit: contain;
object-position: center;
}
/*add stretch*/
&-image {
display: block;
position: relative;
pointer-events: none;
}
&-component {
position: relative;
z-index: 999;
background-color: white;
margin: 0 auto;
overflow: hidden;
> img {
max-width: 100%;
}
}
&-overlay {
position: absolute;
z-index: 999;
/* box-shadow: 0 0 0 3px white; */
overflow: hidden;
box-sizing: content-box;
border-radius: 50%;
html.no-touch &:hover, &:active {
cursor: move;
}
&-image {
position: absolute;
display: block;
}
&-color {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(255, 255, 255, .7);
border-radius: $border-radius;
}
}
}

73
src/scss/style.scss
Unescape View File

@ -145,6 +145,7 @@ $chat-padding-handhelds: .5rem; @@ -145,6 +145,7 @@ $chat-padding-handhelds: .5rem;
@import "partials/chatMarkupTooltip";
@import "partials/chatStickersHelper";
@import "partials/chatDrop";
@import "partials/crop";
@import "partials/sidebar";
@import "partials/leftSidebar";
@import "partials/rightSidebar";
@ -651,78 +652,6 @@ img.emoji { @@ -651,78 +652,6 @@ img.emoji {
vertical-align: middle;
}
.overlay::selection {
background: transparent;
}
.crop-component::selection {
background: transparent;
}
/* .crop-blur {
-webkit-filter: blur(10px) sepia(0.2);
filter: blur(10px) sepia(0.2);
} */
.crop-image,
.overlay > img {
width: auto;
height: auto;
/* можно явно указать либо ширину, либо высоту */
/* width: 500px; */
/*либо height: 300px;*/
display: block;
object-fit: contain;
object-position: center;
}
/*add stretch*/
.crop-image {
display: block;
position: relative;
pointer-events: none;
}
.crop-component {
position: relative;
z-index: 999;
background-color: white;
margin: 0 auto;
overflow: hidden;
> img {
max-width: 100%;
}
.crop-overlay-color {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(255, 255, 255, 0.7);
border-radius: $border-radius;
}
}
.overlay {
position: absolute;
left: 50%;
top: 50%;
z-index: 999;
margin-left: -100px;
margin-top: -100px;
width: 200px;
height: 200px;
/* box-shadow: 0 0 0 3px white; */
overflow: hidden;
box-sizing: content-box;
border-radius: 50%;
html.no-touch &:hover, &:active {
cursor: move;
}
> img {
position: absolute;
display: block;
}
}
[contenteditable=true] {
user-select: text;
outline: none;

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