556 lines
20 KiB
JavaScript
556 lines
20 KiB
JavaScript
define([
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'jquery',
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'json.sortify',
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'/bower_components/nthen/index.js',
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'/common/sframe-common.js',
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'/common/sframe-app-framework.js',
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'/common/common-util.js',
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'/common/common-hash.js',
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'/common/common-interface.js',
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'/common/common-thumbnail.js',
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'/common/hyperscript.js',
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'/customize/messages.js',
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'/whiteboard/colors.js',
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'/customize/application_config.js',
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'/bower_components/chainpad/chainpad.dist.js',
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'/bower_components/secure-fabric.js/dist/fabric.min.js',
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'less!/whiteboard/app-whiteboard.less'
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], function (
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$,
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Sortify,
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nThen,
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SFCommon,
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Framework,
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Util,
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Hash,
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UI,
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Thumb,
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h,
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Messages,
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Colors,
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AppConfig,
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ChainPad)
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{
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var APP = window.APP = {
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$: $
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};
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var Fabric = APP.Fabric = window.fabric;
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var verbose = function (x) { console.log(x); };
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verbose = function () {}; // comment out to enable verbose logging
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var mkControls = function (framework, canvas) {
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var $pickers = $('#cp-app-whiteboard-pickers');
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var $colors = $('#cp-app-whiteboard-colors');
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var $cursors = $('#cp-app-whiteboard-cursors');
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var $controls = $('#cp-app-whiteboard-controls');
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var $width = $('#cp-app-whiteboard-width');
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var $widthLabel = $('label[for="cp-app-whiteboard-width"]');
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var $opacity = $('#cp-app-whiteboard-opacity');
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var $opacityLabel = $('label[for="cp-app-whiteboard-opacity"]');
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var $toggle = $('#cp-app-whiteboard-toggledraw');
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var $deleteButton = $('#cp-app-whiteboard-delete');
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var metadataMgr = framework._.cpNfInner.metadataMgr;
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var brush = {
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color: '#000000',
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opacity: 1
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};
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var createCursor = function () {
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var w = canvas.freeDrawingBrush.width;
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var c = canvas.freeDrawingBrush.color;
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var size = w > 30 ? w+2 : w+32;
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$cursors.html('<canvas width="'+size+'" height="'+size+'"></canvas>');
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var $ccanvas = $cursors.find('canvas');
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var ccanvas = $ccanvas[0];
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var ctx = ccanvas.getContext('2d');
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var centerX = size / 2;
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var centerY = size / 2;
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var radius = w/2;
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ctx.beginPath();
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ctx.arc(centerX, centerY, radius, 0, 2 * Math.PI, false);
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ctx.fillStyle = c;
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ctx.fill();
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ctx.lineWidth = 1;
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ctx.strokeStyle = brush.color;
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ctx.stroke();
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ctx.beginPath();
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ctx.moveTo(size/2, 0); ctx.lineTo(size/2, 10);
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ctx.moveTo(size/2, size); ctx.lineTo(size/2, size-10);
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ctx.moveTo(0, size/2); ctx.lineTo(10, size/2);
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ctx.moveTo(size, size/2); ctx.lineTo(size-10, size/2);
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ctx.strokeStyle = '#000000';
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ctx.stroke();
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var img = ccanvas.toDataURL("image/png");
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$controls.find('.cp-app-whiteboard-selected > img').attr('src', img);
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canvas.freeDrawingCursor = 'url('+img+') '+size/2+' '+size/2+', crosshair';
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};
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var updateBrushWidth = function () {
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var val = $width.val();
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canvas.freeDrawingBrush.width = Number(val);
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$widthLabel.text(Messages._getKey("canvas_widthLabel", [val]));
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$('#cp-app-whiteboard-width-val').text(val + 'px');
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createCursor();
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};
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updateBrushWidth();
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$width.on('change', updateBrushWidth);
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var updateBrushOpacity = function () {
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var val = $opacity.val();
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brush.opacity = Number(val);
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canvas.freeDrawingBrush.color = Colors.hex2rgba(brush.color, brush.opacity);
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$opacityLabel.text(Messages._getKey("canvas_opacityLabel", [val]));
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$('#cp-app-whiteboard-opacity-val').text((Number(val) * 100) + '%');
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createCursor();
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};
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updateBrushOpacity();
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$opacity.on('change', updateBrushOpacity);
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APP.draw = true;
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var toggleDrawMode = function () {
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canvas.deactivateAll().renderAll();
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APP.draw = !APP.draw;
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canvas.isDrawingMode = APP.draw;
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$toggle.text(APP.draw ? Messages.canvas_disable : Messages.canvas_enable);
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if (APP.draw) { $deleteButton.hide(); }
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else { $deleteButton.show(); }
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};
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$toggle.click(toggleDrawMode);
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var deleteSelection = function () {
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if (canvas.getActiveObject()) {
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canvas.getActiveObject().remove();
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}
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if (canvas.getActiveGroup()) {
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canvas.getActiveGroup()._objects.forEach(function (el) {
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el.remove();
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});
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canvas.discardActiveGroup();
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}
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canvas.renderAll();
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framework.localChange();
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};
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$deleteButton.click(deleteSelection);
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$(window).on('keyup', function (e) {
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if (e.which === 46) { deleteSelection (); }
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});
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var pickColor = function (current, cb) {
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var $picker = $('<input>', {
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type: 'color',
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value: '#FFFFFF',
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})
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.on('change', function () {
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var color = this.value;
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cb(color);
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}).appendTo($pickers);
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setTimeout(function () {
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$picker.val(current);
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$picker.click();
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});
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};
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var setColor = function (c) {
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c = Colors.rgb2hex(c);
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brush.color = c;
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canvas.freeDrawingBrush.color = Colors.hex2rgba(brush.color, brush.opacity);
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APP.$color.css({
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'color': c,
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});
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createCursor();
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};
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var palette = AppConfig.whiteboardPalette || [
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'red', 'blue', 'green', 'white', 'black', 'purple',
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'gray', 'beige', 'brown', 'cyan', 'darkcyan', 'gold', 'yellow', 'pink'
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];
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$('.cp-app-whiteboard-palette-color').on('click', function () {
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var color = $(this).css('background-color');
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setColor(color);
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});
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var addColorToPalette = function (color, i) {
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if (framework.isReadOnly()) { return; }
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var $color = $('<span>', {
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'class': 'cp-app-whiteboard-palette-color',
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})
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.css({
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'background-color': color,
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})
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.click(function () {
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var c = Colors.rgb2hex($color.css('background-color'));
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setColor(c);
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})
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.on('dblclick', function (e) {
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e.preventDefault();
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if (framework.isLocked()) { return; }
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pickColor(Colors.rgb2hex($color.css('background-color')), function (c) {
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$color.css({
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'background-color': c,
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});
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palette.splice(i, 1, c);
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APP.updateLocalPalette(palette);
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setColor(c);
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});
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});
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$colors.append($color);
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};
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var first = true;
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var updatePalette = function (newPalette) {
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if (first || Sortify(palette) !== Sortify(newPalette)) {
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palette = newPalette;
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$colors.html('<div class="hidden"> </div>');
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palette.forEach(addColorToPalette);
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first = false;
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}
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};
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var updateLocalPalette = APP.updateLocalPalette = function (newPalette) {
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updatePalette(newPalette);
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var metadata = JSON.parse(JSON.stringify(metadataMgr.getMetadata()));
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metadata.palette = newPalette;
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metadataMgr.updateMetadata(metadata);
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framework.localChange();
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};
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var makeColorButton = function ($container) {
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var $testColor = $('<input>', { type: 'color', value: '!' });
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// if colors aren't supported, bail out
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if ($testColor.attr('type') !== 'color' ||
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$testColor.val() === '!') {
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console.log("Colors aren't supported. Aborting");
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return;
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}
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var $color = APP.$color = framework._.sfCommon.createButton(null, true, {
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icon: 'fa-square',
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title: Messages.canvas_chooseColor,
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name: 'color',
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id: 'cp-app-whiteboard-color-picker'
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});
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$color.on('click', function () {
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pickColor($color.css('background-color'), function (color) {
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setColor(color);
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});
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});
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setColor('#000');
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$container.append($color);
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return $color;
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};
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updateLocalPalette(palette);
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metadataMgr.onChange(function () {
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var md = metadataMgr.getMetadata();
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if (md.palette) {
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updateLocalPalette(md.palette);
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}
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});
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return {
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palette: palette,
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makeColorButton: makeColorButton,
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updateLocalPalette: updateLocalPalette,
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};
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};
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var mkHelpMenu = function (framework) {
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var $appContainer = $('#cp-app-whiteboard-container');
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var helpMenu = framework._.sfCommon.createHelpMenu(['whiteboard']);
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$appContainer.prepend(helpMenu.menu);
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framework._.toolbar.$drawer.append(helpMenu.button);
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};
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// Start of the main loop
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var andThen2 = function (framework) {
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APP.framework = framework;
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var canvas = APP.canvas = new Fabric.Canvas('cp-app-whiteboard-canvas', {
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containerClass: 'cp-app-whiteboard-canvas-container'
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});
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var $canvas = $('canvas');
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var $canvasContainer = $('canvas').parents('.cp-app-whiteboard-canvas-container');
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var $controls = $('#cp-app-whiteboard-controls');
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var metadataMgr = framework._.cpNfInner.metadataMgr;
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var setEditable = function (bool) {
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if (bool) { $controls.css('display', 'flex'); }
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else { $controls.hide(); }
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canvas.isDrawingMode = bool ? APP.draw : false;
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if (!bool) {
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canvas.deactivateAll();
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canvas.renderAll();
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}
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canvas.forEachObject(function (object) {
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object.selectable = bool;
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});
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$canvasContainer.find('canvas').css('border-color', bool? 'black': 'red');
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};
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mkHelpMenu(framework);
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var controls = mkControls(framework, canvas);
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// ---------------------------------------------
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// Whiteboard custom buttons
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// ---------------------------------------------
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var $rightside = framework._.toolbar.$rightside;
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APP.FM = framework._.sfCommon.createFileManager({});
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APP.upload = function (title) {
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var canvas = $canvas[0];
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APP.canvas.deactivateAll().renderAll();
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canvas.toBlob(function (blob) {
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blob.name = title;
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APP.FM.handleFile(blob);
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});
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};
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var addImageToCanvas = function (img) {
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var w = img.width;
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var h = img.height;
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if (w<h) {
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img.width = img.width * (300/img.height);
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img.height = 300;
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} else {
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img.height = img.height * (300/img.width);
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img.width = 300;
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}
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var cImg = new Fabric.Image(img, { left:0, top:0, angle:0, });
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APP.canvas.add(cImg);
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framework.localChange();
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};
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// Embed image
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var onUpload = function (e) {
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var file = e.target.files[0];
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var reader = new FileReader();
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reader.onload = function () {
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var img = new Image();
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img.onload = function () {
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addImageToCanvas(img);
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};
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img.src = reader.result;
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};
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reader.readAsDataURL(file);
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};
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framework._.sfCommon.createButton('', true, {
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title: Messages.canvas_imageEmbed,
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icon: 'fa-file-image-o',
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name: 'embedImage'
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}).click(function () {
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$('<input>', {type:'file'}).on('change', onUpload).click();
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}).appendTo($rightside);
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if (framework._.sfCommon.isLoggedIn()) {
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var fileDialogCfg = {
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onSelect: function (data) {
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if (data.type === 'file') {
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var mt = '<media-tag src="' + data.src + '" data-crypto-key="cryptpad:' + data.key + '"></media-tag>';
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framework._.sfCommon.displayMediatagImage($(mt), function (err, $image) {
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Util.blobURLToImage($image.attr('src'), function (imgSrc) {
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var img = new Image();
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img.onload = function () { addImageToCanvas(img); };
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img.src = imgSrc;
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});
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});
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return;
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}
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}
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};
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framework._.sfCommon.initFilePicker(fileDialogCfg);
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framework._.sfCommon.createButton('mediatag', true).click(function () {
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var pickerCfg = {
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types: ['file'],
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where: ['root'],
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filter: {
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fileType: ['image/']
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}
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};
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framework._.sfCommon.openFilePicker(pickerCfg);
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}).appendTo($rightside);
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// Export to drive as PNG
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framework._.sfCommon.createButton('savetodrive', true, {}).click(function () {
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var defaultName = framework._.title.getTitle();
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UI.prompt(Messages.exportPrompt, defaultName + '.png', function (name) {
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if (name === null || !name.trim()) { return; }
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APP.upload(name);
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});
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}).appendTo($rightside);
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}
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if (framework.isReadOnly()) {
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setEditable(false);
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} else {
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controls.makeColorButton($rightside);
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}
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$('#cp-app-whiteboard-clear').on('click', function () {
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canvas.clear();
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framework.localChange();
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});
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// ---------------------------------------------
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// End custom
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// ---------------------------------------------
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framework.onEditableChange(function () {
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var locked = framework.isLocked() || framework.isReadOnly();
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setEditable(!locked);
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});
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framework.setFileExporter('png', function (cb) {
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$canvas[0].toBlob(function (blob) {
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cb(blob);
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});
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});
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framework.setNormalizer(function (c) {
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return {
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content: c.content
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};
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});
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framework.onContentUpdate(function (newContent, waitFor) {
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var content = newContent.content;
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canvas.loadFromJSON(content, waitFor(function () {
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canvas.renderAll();
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}));
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});
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framework.setContentGetter(function () {
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var content = canvas.toDatalessJSON();
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return {
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content: content
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};
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});
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framework.onReady(function () {
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var oldThumbnailState;
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var privateDat = metadataMgr.getPrivateData();
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if (!privateDat.thumbnails) { return; }
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var hash = privateDat.availableHashes.editHash ||
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privateDat.availableHashes.viewHash;
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var href = privateDat.pathname + '#' + hash;
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var mkThumbnail = function () {
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if (!hash) { return; }
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if (framework.getState() !== 'READY') { return; }
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if (!framework._.cpNfInner.chainpad) { return; }
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var content = framework._.cpNfInner.chainpad.getUserDoc();
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if (content === oldThumbnailState) { return; }
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var D = Thumb.getResizedDimensions($canvas[0], 'pad');
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Thumb.fromCanvas($canvas[0], D, function (err, b64) {
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oldThumbnailState = content;
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Thumb.setPadThumbnail(framework._.sfCommon, href, privateDat.channel, b64);
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});
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};
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window.setInterval(mkThumbnail, Thumb.UPDATE_INTERVAL);
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window.setTimeout(mkThumbnail, Thumb.UPDATE_FIRST);
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});
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canvas.on('mouse:up', framework.localChange);
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framework.start();
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};
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var initialContent = function () {
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return [
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h('div#cp-toolbar.cp-toolbar-container'),
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h('div#cp-app-whiteboard-canvas-area',
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h('div#cp-app-whiteboard-container',
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h('canvas#cp-app-whiteboard-canvas', {
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width: 600,
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height: 600
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})
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)
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),
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h('div#cp-app-whiteboard-controls', {
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style: {
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display: 'block',
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}
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}, [
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h('button#cp-app-whiteboard-clear.btn.btn-danger', Messages.canvas_clear), ' ',
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h('button#cp-app-whiteboard-toggledraw.btn.btn-secondary', Messages.canvas_disable),
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h('button#cp-app-whiteboard-delete.btn.btn-secondary', {
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style: {
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display: 'none',
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}
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}, Messages.canvas_delete),
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h('div.cp-app-whiteboard-range-group', [
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h('label', {
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'for': 'cp-app-whiteboard-width'
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}, Messages.canvas_width),
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h('input#cp-app-whiteboard-width', {
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type: 'range',
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min: "1",
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max: "100"
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}),
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h('span#cp-app-whiteboard-width-val', '5px')
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]),
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h('div.cp-app-whiteboard-range-group', [
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h('label', {
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'for': 'cp-app-whiteboard-opacity',
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}, Messages.canvas_opacity),
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h('input#cp-app-whiteboard-opacity', {
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type: 'range',
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min: "0.1",
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max: "1",
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step: "0.1"
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}),
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h('span#cp-app-whiteboard-opacity-val', '100%')
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]),
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h('span.cp-app-whiteboard-selected.cp-app-whiteboard-unselectable', [
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h('img', {
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title: Messages.canvas_currentBrush
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})
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])
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]),
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UI.setHTML(h('div#cp-app-whiteboard-colors'), ' '),
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h('div#cp-app-whiteboard-cursors', {
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style: {
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display: 'none',
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background: 'white',
|
||
'text-align': 'center',
|
||
}
|
||
}),
|
||
h('div#cp-app-whiteboard-pickers'),
|
||
h('div#cp-app-whiteboard-media-hidden')
|
||
];
|
||
};
|
||
|
||
var main = function () {
|
||
// var framework;
|
||
nThen(function (waitFor) {
|
||
$(waitFor(function () {
|
||
var $div = $('<div>').append(initialContent());
|
||
$('body').append($div.html());
|
||
}));
|
||
}).nThen(function (waitFor) {
|
||
|
||
// Framework initialization
|
||
Framework.create({
|
||
patchTransformer: ChainPad.NaiveJSONTransformer,
|
||
toolbarContainer: '#cp-toolbar',
|
||
contentContainer: '#cp-app-whiteboard-canvas-area',
|
||
}, waitFor(function (framework) {
|
||
andThen2(framework);
|
||
}));
|
||
});
|
||
};
|
||
main();
|
||
});
|