Add consultation module assets and libraries
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Power BI Dev
303
konsultasi/libs/Trumbowyg/plugins/resizimg/trumbowyg.resizimg.js
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303
konsultasi/libs/Trumbowyg/plugins/resizimg/trumbowyg.resizimg.js
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;(function ($) {
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'use strict';
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var defaultOptions = {
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minSize: 32,
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step: 4
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};
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function preventDefault(e) {
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e.stopPropagation();
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e.preventDefault();
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}
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var ResizeWithCanvas = function () {
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// variable to create canvas and save img in resize mode
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this.resizeCanvas = document.createElement('canvas');
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// to allow canvas to get focus
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this.resizeCanvas.setAttribute('tabindex', '0');
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this.resizeCanvas.id = 'trumbowyg-resizimg-' + (+new Date());
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this.ctx = null;
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this.resizeImg = null;
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this.pressEscape = function (obj) {
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obj.reset();
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};
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this.pressBackspaceOrDelete = function (obj) {
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$(obj.resizeCanvas).replaceWith('');
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obj.resizeImg = null;
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};
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// PRIVATE FUNCTION
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var focusedNow = false;
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var isCursorSeResize = false;
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// calculate offset to change mouse over square in the canvas
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var offsetX, offsetY;
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var reOffset = function (canvas) {
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var BB = canvas.getBoundingClientRect();
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offsetX = BB.left;
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offsetY = BB.top;
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};
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var drawRect = function (shapeData, ctx) {
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// Inner
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ctx.beginPath();
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ctx.fillStyle = 'rgb(255, 255, 255)';
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ctx.rect(shapeData.points.x, shapeData.points.y, shapeData.points.width, shapeData.points.height);
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ctx.fill();
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ctx.stroke();
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};
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var updateCanvas = function (canvas, ctx, img, canvasWidth, canvasHeight) {
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ctx.translate(0.5, 0.5);
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ctx.lineWidth = 1;
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// image
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ctx.drawImage(img, 5, 5, canvasWidth - 10, canvasHeight - 10);
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// border
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ctx.beginPath();
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ctx.rect(5, 5, canvasWidth - 10, canvasHeight - 10);
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ctx.stroke();
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// square in the angle
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ctx.beginPath();
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ctx.fillStyle = 'rgb(255, 255, 255)';
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ctx.rect(canvasWidth - 10, canvasHeight - 10, 9, 9);
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ctx.fill();
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ctx.stroke();
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// get the offset to change the mouse cursor
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reOffset(canvas);
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return ctx;
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};
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// PUBLIC FUNCTION
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// necessary to correctly print cursor over square. Called once for instance. Useless with trumbowyg.
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this.init = function () {
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var _this = this;
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$(window).on('scroll resize', function () {
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_this.reCalcOffset();
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});
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};
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this.reCalcOffset = function () {
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reOffset(this.resizeCanvas);
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};
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this.canvasId = function () {
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return this.resizeCanvas.id;
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};
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this.isActive = function () {
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return this.resizeImg !== null;
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};
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this.isFocusedNow = function () {
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return focusedNow;
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};
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this.blurNow = function () {
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focusedNow = false;
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};
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// restore image in the HTML of the editor
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this.reset = function () {
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if (this.resizeImg === null) {
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return;
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}
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this.resizeImg.width = this.resizeCanvas.clientWidth - 10;
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this.resizeImg.height = this.resizeCanvas.clientHeight - 10;
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// clear style of image to avoid issue on resize because this attribute have priority over width and height attribute
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this.resizeImg.removeAttribute('style');
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$(this.resizeCanvas).replaceWith($(this.resizeImg));
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// reset canvas style
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this.resizeCanvas.removeAttribute('style');
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this.resizeImg = null;
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};
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// setup canvas with points and border to allow the resizing operation
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this.setup = function (img, resizableOptions) {
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this.resizeImg = img;
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if (!this.resizeCanvas.getContext) {
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return false;
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}
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focusedNow = true;
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// draw canvas
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this.resizeCanvas.width = $(this.resizeImg).width() + 10;
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this.resizeCanvas.height = $(this.resizeImg).height() + 10;
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this.resizeCanvas.style.margin = '-5px';
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this.ctx = this.resizeCanvas.getContext('2d');
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// replace image with canvas
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$(this.resizeImg).replaceWith($(this.resizeCanvas));
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updateCanvas(this.resizeCanvas, this.ctx, this.resizeImg, this.resizeCanvas.width, this.resizeCanvas.height);
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// enable resize
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$(this.resizeCanvas).resizable(resizableOptions)
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.on('mousedown', preventDefault);
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var _this = this;
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$(this.resizeCanvas)
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.on('mousemove', function (e) {
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var mouseX = Math.round(e.clientX - offsetX);
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var mouseY = Math.round(e.clientY - offsetY);
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var wasCursorSeResize = isCursorSeResize;
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_this.ctx.rect(_this.resizeCanvas.width - 10, _this.resizeCanvas.height - 10, 9, 9);
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isCursorSeResize = _this.ctx.isPointInPath(mouseX, mouseY);
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if (wasCursorSeResize !== isCursorSeResize) {
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this.style.cursor = isCursorSeResize ? 'se-resize' : 'default';
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}
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})
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.on('keydown', function (e) {
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if (!_this.isActive()) {
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return;
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}
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var x = e.keyCode;
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if (x === 27) { // ESC
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_this.pressEscape(_this);
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} else if (x === 8 || x === 46) { // BACKSPACE or DELETE
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_this.pressBackspaceOrDelete(_this);
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}
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})
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.on('focus', preventDefault);
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this.resizeCanvas.focus();
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return true;
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};
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// update the canvas after the resizing
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this.refresh = function () {
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if (!this.resizeCanvas.getContext) {
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return;
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}
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this.resizeCanvas.width = this.resizeCanvas.clientWidth;
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this.resizeCanvas.height = this.resizeCanvas.clientHeight;
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updateCanvas(this.resizeCanvas, this.ctx, this.resizeImg, this.resizeCanvas.width, this.resizeCanvas.height);
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};
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};
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// object to interact with canvas
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var resizeWithCanvas = new ResizeWithCanvas();
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function destroyResizable(trumbowyg) {
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// clean html code
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trumbowyg.$ed.find('canvas.resizable')
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.resizable('destroy')
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.off('mousedown', preventDefault)
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.removeClass('resizable');
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resizeWithCanvas.reset();
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trumbowyg.syncCode();
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}
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$.extend(true, $.trumbowyg, {
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plugins: {
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resizimg: {
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init: function (trumbowyg) {
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trumbowyg.o.plugins.resizimg = $.extend(true, {},
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defaultOptions,
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trumbowyg.o.plugins.resizimg || {},
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{
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resizable: {
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resizeWidth: false,
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onDragStart: function (ev, $el) {
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var opt = trumbowyg.o.plugins.resizimg;
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var x = ev.pageX - $el.offset().left;
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var y = ev.pageY - $el.offset().top;
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if (x < $el.width() - opt.minSize || y < $el.height() - opt.minSize) {
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return false;
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}
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},
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onDrag: function (ev, $el, newWidth, newHeight) {
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var opt = trumbowyg.o.plugins.resizimg;
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if (newHeight < opt.minSize) {
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newHeight = opt.minSize;
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}
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newHeight -= newHeight % opt.step;
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$el.height(newHeight);
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return false;
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},
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onDragEnd: function () {
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// resize update canvas information
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resizeWithCanvas.refresh();
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trumbowyg.syncCode();
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}
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}
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}
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);
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function initResizable() {
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trumbowyg.$ed.find('img')
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.off('click')
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.on('click', function (e) {
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// if I'm already do a resize, reset it
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if (resizeWithCanvas.isActive()) {
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resizeWithCanvas.reset();
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}
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// initialize resize of image
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resizeWithCanvas.setup(this, trumbowyg.o.plugins.resizimg.resizable);
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preventDefault(e);
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});
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}
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trumbowyg.$c.on('tbwinit', function () {
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initResizable();
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// disable resize when click on other items
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trumbowyg.$ed.on('click', function (e) {
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// check if I've clicked out of canvas or image to reset it
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if ($(e.target).is('img') || e.target.id === resizeWithCanvas.canvasId()) {
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return;
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}
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preventDefault(e);
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resizeWithCanvas.reset();
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// save changes
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trumbowyg.$c.trigger('tbwchange');
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});
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trumbowyg.$ed.on('scroll', function () {
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resizeWithCanvas.reCalcOffset();
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});
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});
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trumbowyg.$c.on('tbwfocus tbwchange', initResizable);
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trumbowyg.$c.on('tbwresize', function () {
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resizeWithCanvas.reCalcOffset();
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});
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// Destroy
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trumbowyg.$c.on('tbwblur', function () {
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// if I have already focused the canvas avoid destroy
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if (resizeWithCanvas.isFocusedNow()) {
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resizeWithCanvas.blurNow();
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} else {
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destroyResizable(trumbowyg);
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}
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});
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},
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destroy: function (trumbowyg) {
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destroyResizable(trumbowyg);
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}
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}
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}
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});
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})(jQuery);
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