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Commit 27916dd4 by gutkaBinit Committed by Sarath Subramanian
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ATLAS-3031: UI : Allow user to export the lineage in PNG formatt

Signed-off-by: 's avatarSarath Subramanian <ssubramanian@hortonworks.com>
parent f92e06cd
Showing with 158 additions and 11 deletions
dashboardv2/public/css/scss/graph.scss
......@@ -422,3 +422,7 @@ span#zoom_in {
word-break: break-all;
}
}
.hidden-svg {
visibility: hidden;
}
\ No newline at end of file
dashboardv2/public/js/templates/graph/LineageLayoutView_tmpl.html
......@@ -90,6 +90,11 @@
</div>
<div class="graph-button-group pull-right">
<div>
<button data-id="saveSvg" class="disabled btn btn-action btn-gray btn-sm" title="Export to PNG">
<i class="fa fa-camera"></i>
</button>
</div>
<div>
<button type="button" data-id="setting-toggler" class="btn btn-action btn-gray btn-sm"><i class="fa fa-gear"></i></button>
</div>
<div>
......@@ -127,12 +132,11 @@
<div class="fontLoader">
<i class="fa fa-refresh fa-spin-custom"></i>
</div>
<canvas width="960" height="500" style="display:none; position: absolute;"></canvas>
<div class="legends pull-left" style="height: 25px; padding: 2px;">
<span style="margin-right: 8px; color:#fb4200;"><i class="fa fa-circle-o fa-fw" aria-hidden="true"></i>Current Entity</span>
<span style="margin-right: 8px; color:#df9b00;"><i class="fa fa-long-arrow-right fa-fw" aria-hidden="true"></i>Lineage</span>
<span style="margin-right: 8px; color:#fb4200;"><i class="fa fa-long-arrow-right fa-fw" aria-hidden="true"></i>Impact</span>
</div>
<!-- <svg width="100%" height="calc(100% - 28px)" preserveAspectRatio="xMidYMid meet" viewBox="0 0 854 330" enable-background="new 0 0 854 330" xml:space="preserve"></svg> -->
<svg width="{{width}}" height="{{height}}" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1"></svg>
</div>
<div class="hidden-svg"></div>
\ No newline at end of file
dashboardv2/public/js/views/graph/LineageLayoutView.js
......@@ -63,7 +63,8 @@ define(['require',
searchNode: '[data-id="searchNode"]',
nodeDetailTable: '[data-id="nodeDetailTable"]',
showOnlyHoverPath: '[data-id="showOnlyHoverPath"]',
showTooltip: '[data-id="showTooltip"]'
showTooltip: '[data-id="showTooltip"]',
saveSvg: '[data-id="saveSvg"]',
},
templateHelpers: function() {
return {
......@@ -82,6 +83,7 @@ define(['require',
events["click " + this.ui.settingToggler] = 'onClickSettingToggler';
events["click " + this.ui.lineageFullscreenToggler] = 'onClickLineageFullscreenToggler';
events["click " + this.ui.searchToggler] = 'onClickSearchToggler';
events["click " + this.ui.saveSvg] = 'onClickSaveSvg';
return events;
},
......@@ -488,7 +490,8 @@ define(['require',
createGraph: function() {
var that = this,
width = this.$('svg').width(),
height = this.$('svg').height();
height = this.$('svg').height(),
imageObject = {};
this.g.nodes().forEach(function(v) {
var node = that.g.node(v);
// Round the corners of the nodes
......@@ -500,6 +503,8 @@ define(['require',
var render = new dagreD3.render();
// Add our custom arrow (a hollow-point)
render.arrows().arrowPoint = function normal(parent, id, edge, type) {
var parentNode = parent && parent[0] && parent[0][0] && parent[0][0].parentNode ? parent[0][0].parentNode : parent;
d3.select(parentNode).select('path.path').attr('marker-end', "url(#" + id + ")");
var marker = parent.append("marker")
.attr("id", id)
.attr("viewBox", "0 0 10 10")
......@@ -536,17 +541,49 @@ define(['require',
.attr("height", "100%")
.append('image')
.attr("xlink:href", function(d) {
var that = this;
if (node) {
return Utils.getEntityIconPath({ entityData: node });
var imageIconPath = Utils.getEntityIconPath({ entityData: node }),
imagePath = ((window.location.origin + Utils.getBaseUrl(window.location.pathname)) + imageIconPath);
var xhr = new XMLHttpRequest();
xhr.responseType = 'blob';
xhr.onload = function() {
var reader = new FileReader();
reader.onloadend = function() {
_.each(imageObject[imageIconPath], function(obj) {
obj.attr("xlink:href", reader.result);
});
imageObject[imageIconPath] = reader.result;
}
if (xhr.status != 404) {
reader.readAsDataURL(xhr.response);
} else {
xhr.open('GET',
Utils.getEntityIconPath({ entityData: node, errorUrl: this.responseURL }),
true);
xhr.send();
}
}
if (_.isUndefined(imageObject[imageIconPath])) {
// before img success
imageObject[imageIconPath] = [d3.select(that)];
xhr.open('GET', imagePath, true);
xhr.send();
} else if (_.isArray(imageObject[imageIconPath])) {
// before img success
imageObject[imageIconPath].push(d3.select(that));
} else {
d3.select(that).attr("xlink:href", imageObject[imageIconPath]);
return imageObject[imageIconPath];
}
}
})
.attr("x", "4")
.attr("y", currentNode ? "3" : "4")
.attr("width", "40")
.attr("height", "40")
.on("error", function() {
this.setAttributeNS('http://www.w3.org/1999/xlink', 'xlink:href', Utils.getEntityIconPath({ entityData: node, errorUrl: this.href.baseVal }));
});
.attr("y", currentNode ? "3" : "4").attr("width", "40")
.attr("height", "40");
node.intersect = function(point) {
return dagreD3.intersect.circle(node, currentNode ? 24 : 21, point);
......@@ -770,6 +807,7 @@ define(['require',
g: this.g,
guid: this.guid
}).init();
this.$el.find('[data-id="saveSvg"]').removeClass('disabled')
},
renderLineageTypeSearch: function() {
var that = this;
......@@ -870,7 +908,105 @@ define(['require',
"attributeDefs": attributeDefs,
"sortBy": false
}));
},
onClickSaveSvg: function(e, a) {
var that = this;
var loaderTargetDiv = $(e.currentTarget).find('>i');
if ($(e.currentTarget).hasClass('disabled')) {
Utils.notifyWarn({
content: "Lineage can be downloaded once it is rendered."
});
return false; // return if the lineage is not loaded.
}
if (loaderTargetDiv.hasClass('fa-refresh')) {
Utils.notifyWarn({
content: "Please wait while the lineage gets downloaded"
});
return false; // return if the lineage is not loaded.
}
that.toggleLoader(loaderTargetDiv);
Utils.notifyInfo({
content: "Lineage will be downloaded in a moment."
});
setTimeout(function() {
var svg = that.$('svg')[0],
svgClone = svg.cloneNode(true),
scaleFactor = 1;
$('.hidden-svg').html(svgClone);
$(svgClone).find('>g').attr("transform", "scale(" + scaleFactor + ")");
var canvasOffset = { x: 150, y: 150 },
setWidth = (svgClone.getBBox().width + (canvasOffset.x)),
setHeight = (svgClone.getBBox().height + (canvasOffset.y));
svgClone.attributes.viewBox.value = "-10,-10," + setWidth + "," + setHeight;
var createCanvas = document.createElement('canvas');
createCanvas.id = "canvas";
createCanvas.style.display = 'none';
var body = $('body').append(createCanvas),
canvas = $('canvas')[0];
canvas.width = (svgClone.getBBox().width * scaleFactor) + canvasOffset.x;
canvas.height = (svgClone.getBBox().height * scaleFactor) + canvasOffset.y;
var ctx = canvas.getContext('2d'),
data = (new XMLSerializer()).serializeToString(svgClone),
DOMURL = window.URL || window.webkitURL || window;
ctx.fillStyle = "#FFFFFF";
ctx.fillRect(0, 0, canvas.width, canvas.height);
ctx.strokeRect(0, 0, canvas.width, canvas.height);
ctx.restore();
var img = new Image(canvas.width, canvas.height);
var svgBlob = new Blob([data], { type: 'image/svg+xml;base64' });
var url = DOMURL.createObjectURL(svgBlob);
img.onload = function() {
try {
var a = document.createElement("a");
a.download = "download.png";
ctx.drawImage(img, 50, 50, canvas.width, canvas.height);
canvas.toBlob(function(blob) {
if (!blob) {
Utils.notifyError({
content: "There was an error in downloading Lineage!"
});
return;
}
a.href = DOMURL.createObjectURL(blob);
if (blob.size > 10000000) {
Utils.notifyWarn({
content: "The Image size is huge, please open the image in a browser!"
});
}
a.click();
that.toggleLoader(loaderTargetDiv);
}, 'image/png');
$('.hidden-svg').html('');
createCanvas.remove();
} catch (err) {
Utils.notifyError({
content: "There was an error in downloading Lineage!"
});
that.toggleLoader(loaderTargetDiv);
}
};
img.src = url;
}, 0)
},
toggleLoader: function(element) {
if ((element).hasClass('fa-camera')) {
(element).removeClass('fa-camera').addClass("fa-spin-custom fa-refresh");
} else {
(element).removeClass("fa-spin-custom fa-refresh").addClass('fa-camera');
}
},
});
return LineageLayoutView;
});
\ No newline at end of file
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