url hash initial implementation (#125)

* url hash initial implementation

* completed url hash UI
This commit is contained in:
Jeffrey Warren
2017-10-02 08:37:10 -04:00
committed by GitHub
parent 4e780f3a91
commit ca6910017d
3 changed files with 252 additions and 180 deletions

207
examples/demo.js Normal file
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@@ -0,0 +1,207 @@
window.onload = function() {
sequencer = ImageSequencer();
// Load information of all modules (Name, Inputs, Outputs)
var modulesInfo = sequencer.modulesInfo();
// Add modules to the addStep dropdown
for(var m in modulesInfo) {
$('#addStep select').append(
'<option value="'+m+'">'+modulesInfo[m].name+'</option>'
);
}
// Initial definitions
var steps = document.querySelector('#steps');
var parser = new DOMParser();
var reader = new FileReader();
initial = "images/grid.png";
// Set the UI in sequencer. This Will generate HTML based on
// Image Sequencer events :
// onSetup : Called every time a step is added
// onDraw : Called every time a step starts draw
// onComplete : Called every time a step finishes drawing
// onRemove : Called everytime a step is removed
// The variable 'step' stores useful data like input and
// output values, step information.
// See documetation for more details.
sequencer.setUI({
onSetup: function(step) {
step.ui = '\
<div class="row step">\
<div class="col-md-4 details">\
<h3>'+step.name+'</h3>\
<p><i>'+(step.description || '')+'</i></p>\
</div>\
<div class="col-md-8">\
<img alt="" class="img-thumbnail"/>\
</div>\
</div>\
';
var tools =
'<div class="tools btn-group">\
<button confirm="Are you sure?" class="remove btn btn-xs btn-default">\
<i class="fa fa-trash"></i>\
</button>\
</div>';
step.ui = parser.parseFromString(step.ui,'text/html');
step.ui = step.ui.querySelector('div.row');
step.imgElement = step.ui.querySelector('img');
if(sequencer.modulesInfo().hasOwnProperty(step.name)) {
var inputs = sequencer.modulesInfo(step.name).inputs;
var outputs = sequencer.modulesInfo(step.name).outputs;
var io = Object.assign(inputs,outputs);
for (var i in io) {
var div = document.createElement('div');
div.className = "row";
div.setAttribute('name',i);
div.innerHTML = "<div class='det'>" + i + ": " + "<span></span></div>";
step.ui.querySelector('div.details').appendChild(div);
}
}
if(step.name != "load-image")
step.ui.querySelector('div.details').appendChild(
parser.parseFromString(tools,'text/html')
.querySelector('div')
);
steps.appendChild(step.ui);
},
onComplete: function(step) {
step.imgElement.src = step.output;
if(sequencer.modulesInfo().hasOwnProperty(step.name)) {
var inputs = sequencer.modulesInfo(step.name).inputs;
var outputs = sequencer.modulesInfo(step.name).outputs;
for (var i in inputs) {
step.ui.querySelector('div[name="'+i+'"] span')
.innerHTML = step.options[i];
}
for (var i in outputs) {
step.ui.querySelector('div[name="'+i+'"] span')
.innerHTML = step[i];
}
}
},
onRemove: function(step) {
step.ui.remove();
}
});
sequencer.loadImage('images/grid.png', function loadImageUI(){
// look up needed steps from Url Hash:
var stepsFromHash = getUrlHashParameter('steps').split(',')
stepsFromHash.forEach(function eachStep(step) {
sequencer.addSteps(step)
});
sequencer.run();
});
// File handling
$('#addStep select').on('change', selectNewStepUI);
function selectNewStepUI() {
$('#options').html('');
var m = $('#addStep select').val();
for(var input in modulesInfo[m].inputs) {
$('#options').append(
'<div class="row">\
<div class="col-md-5 labels">\
'+input+':\
</div>\
<div class="col-md-5">\
<input class="form-control" type="text" name="'+input+'" value="" placeholder="'+
modulesInfo[m].inputs[input].default+'"/>\
</div>\
</div>'
);
}
}
function addStepUI() {
var options = {};
var inputs = $('#options input');
$.each(inputs, function() {
options[this.name] = $(this).val();
});
if($('#addStep select').val()=="none") return;
// add to URL hash too
setUrlHashParameter('steps', getUrlHashParameter('steps') + ',' + $('#addStep select').val())
sequencer.addSteps($('#addStep select').val(),options).run();
}
$('#addStep button').on('click', addStepUI);
function removeStepUI(){
var index = $('button.remove').index(this) + 1;
sequencer.removeSteps(index).run();
// remove from URL hash too
var urlHash = getUrlHashParameter('steps').split(',');
urlHash.splice(index - 1, 1);
setUrlHashParameter("steps", urlHash.join(','));
}
$('body').on('click','button.remove', removeStepUI);
// File handling
function handleFile(e) {
e.preventDefault();
e.stopPropagation(); // stops the browser from redirecting.
if (e.target && e.target.files) var file = e.target.files[0];
else var file = e.dataTransfer.files[0];
if(!file) return;
reader.onload = function(){
var loadStep = sequencer.images.image1.steps[0];
loadStep.output.src = reader.result;
sequencer.run(0);
loadStep.options.step.imgElement.src = reader.result;
}
reader.readAsDataURL(file);
}
$('#file').on('change', handleFile);
var select = $('#imageSelect');
select[0].addEventListener('drop', handleFile, false);
select.on('dragover', function(e) {
e.stopPropagation();
e.preventDefault();
e.dataTransfer.dropEffect = 'copy'; // Explicitly show this is a copy.
}, false);
select.on('dragenter', function(e) {
select.addClass('hover');
});
select.on('dragleave', function(e) {
select.removeClass('hover');
});
}

View File

@@ -17,6 +17,8 @@
<script src="../node_modules/jquery/dist/jquery.min.js"></script> <script src="../node_modules/jquery/dist/jquery.min.js"></script>
<script src="../node_modules/bootstrap/dist/js/bootstrap.min.js"></script> <script src="../node_modules/bootstrap/dist/js/bootstrap.min.js"></script>
<script src="../dist/image-sequencer.js" charset="utf-8"></script> <script src="../dist/image-sequencer.js" charset="utf-8"></script>
<script src="lib/urlHash.js" charset="utf-8"></script>
<script src="demo.js" charset="utf-8"></script>
</head> </head>
@@ -58,187 +60,8 @@
<script type="text/javascript"> <script type="text/javascript">
// Initialize Image Sequencer var sequencer;
var sequencer = ImageSequencer();
window.onload = function() {
// Load information of all modules (Name, Inputs, Outputs)
var modulesInfo = sequencer.modulesInfo();
// Add modules to the addStep dropdown
for(var m in modulesInfo) {
$('#addStep select').append(
'<option value="'+m+'">'+modulesInfo[m].name+'</option>'
);
}
// Initial definitions
var steps = document.querySelector('#steps');
var parser = new DOMParser();
var reader = new FileReader();
initial = "images/grid.png";
// Set the UI in sequencer. This Will generate HTML based on
// Image Sequencer events :
// onSetup : Called every time a step is added
// onDraw : Called every time a step starts draw
// onComplete : Called every time a step finishes drawing
// onRemove : Called everytime a step is removed
// The variable 'step' stores useful data like input and
// output values, step information.
// See documetation for more details.
sequencer.setUI({
onSetup: function(step) {
step.ui = '\
<div class="row step">\
<div class="col-md-4 details">\
<h3>'+step.name+'</h3>\
<p><i>'+(step.description || '')+'</i></p>\
</div>\
<div class="col-md-8">\
<img alt="" class="img-thumbnail"/>\
</div>\
</div>\
';
var tools =
'<div class="tools btn-group">\
<button confirm="Are you sure?" class="remove btn btn-xs btn-default">\
<i class="fa fa-trash"></i>\
</button>\
</div>';
step.ui = parser.parseFromString(step.ui,'text/html');
step.ui = step.ui.querySelector('div.row');
step.imgElement = step.ui.querySelector('img');
if(sequencer.modulesInfo().hasOwnProperty(step.name)) {
var inputs = sequencer.modulesInfo(step.name).inputs;
var outputs = sequencer.modulesInfo(step.name).outputs;
var io = Object.assign(inputs,outputs);
for (var i in io) {
var div = document.createElement('div');
div.className = "row";
div.setAttribute('name',i);
div.innerHTML = "<div class='det'>" + i + ": " + "<span></span></div>";
step.ui.querySelector('div.details').appendChild(div);
}
}
if(step.name != "load-image")
step.ui.querySelector('div.details').appendChild(
parser.parseFromString(tools,'text/html')
.querySelector('div')
);
steps.appendChild(step.ui);
},
onComplete: function(step) {
step.imgElement.src = step.output;
if(sequencer.modulesInfo().hasOwnProperty(step.name)) {
var inputs = sequencer.modulesInfo(step.name).inputs;
var outputs = sequencer.modulesInfo(step.name).outputs;
for (var i in inputs) {
step.ui.querySelector('div[name="'+i+'"] span')
.innerHTML = step.options[i];
}
for (var i in outputs) {
step.ui.querySelector('div[name="'+i+'"] span')
.innerHTML = step[i];
}
}
},
onRemove: function(step) {
step.ui.remove();
}
});
sequencer.loadImage('images/grid.png',function(){
this.addSteps('invert').run();
});
$('#addStep select').on('change', function(){
$('#options').html('');
var m = $('#addStep select').val();
for(var input in modulesInfo[m].inputs) {
$('#options').append(
'<div class="row">\
<div class="col-md-5 labels">\
'+input+':\
</div>\
<div class="col-md-5">\
<input class="form-control" type="text" name="'+input+'" value="" placeholder="'+
modulesInfo[m].inputs[input].default+'"/>\
</div>\
</div>'
);
}
});
$('#addStep button').on('click',function(){
var options = {};
var inputs = $('#options input');
$.each(inputs, function() {
options[this.name] = $(this).val();
});
if($('#addStep select').val()=="none") return;
sequencer.addSteps($('#addStep select').val(),options).run();
});
$('body').on('click','button.remove',function(){
var index = $('button.remove').index(this) + 1;
sequencer.removeSteps(index).run();
});
function handleFile(e) {
e.preventDefault();
e.stopPropagation(); // stops the browser from redirecting.
if (e.target && e.target.files) var file = e.target.files[0];
else var file = e.dataTransfer.files[0];
if(!file) return;
reader.onload = function(){
var loadStep = sequencer.images.image1.steps[0];
loadStep.output.src = reader.result;
sequencer.run(0);
loadStep.options.step.imgElement.src = reader.result;
}
reader.readAsDataURL(file);
}
$('#file').on('change', handleFile);
var select = $('#imageSelect');
select[0].addEventListener('drop', handleFile, false);
select.on('dragover', function(e) {
e.stopPropagation();
e.preventDefault();
e.dataTransfer.dropEffect = 'copy'; // Explicitly show this is a copy.
}, false);
select.on('dragenter', function(e) {
select.addClass('hover');
});
select.on('dragleave', function(e) {
select.removeClass('hover');
});
}
</script> </script>
</body> </body>

42
examples/lib/urlHash.js Normal file
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function getUrlHashParameter(param) {
var params = getUrlHashParameters();
return params[param];
}
function getUrlHashParameters() {
var sPageURL = window.location.hash;
if (sPageURL) sPageURL = sPageURL.split('#')[1];
var pairs = sPageURL.split('&');
var object = {};
pairs.forEach(function(pair, i) {
pair = pair.split('=');
if (pair[0] != '') object[pair[0]] = pair[1];
});
return object;
}
// accepts an object like { paramName: value, paramName1: value }
// and transforms to: url.com#paramName=value&paramName1=value
function setUrlHashParameters(params) {
var keys = Object.keys(params);
var values = Object.values(params);
var pairs = [];
keys.forEach(function(key, i) {
if (key != '') pairs.push(keys[i] + '=' + values[i]);
});
var hash = pairs.join('&');
window.location.hash = hash;
}
function setUrlHashParameter(param, value) {
var params = getUrlHashParameters();
params[param] = value;
setUrlHashParameters(params);
}