How can I call the jsPDF javascript using vuejs?
var doc = new jsPDF();
var specialElementHandlers = {
'#editor': function (element, renderer) {
return true;
}
};
First of all you can create custom directive (Vue.directive) for js pdf.
ex.
<your public directory path>/js_pdf.js
Vue.directive('js-pdf', {
twoWay: true,
priority: 1000,
deep: true,
params: ['pdfvalue', "pdfname"], //Add your require variable
paramWatchers: {
},
bind: function () {
//As per your wish you can set condition
var self = this;
setTimeout(function () {
var doc = new jsPDF()
doc.text(self.params.pdfvalue, 10, 10)
doc.save(self.params.pdfname + '.pdf');
}, 10);
},
update: function (value) {
//As per your requirement you can change data on update method
var self = this;
setTimeout(function () {
}, 10);
},
unbind: function () {
}
});
Now you can include this file in your index.html file and also include jsPDF library
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.4/jspdf.debug.js"></script>
<script src="<your public directory path>/js_pdf.js"></script>
Next you can use this directive with your element
ex.
<input type="hidden" id="editor" v-js-pdf pdfvalue="Hello world how are" pdfname="document">//Here "v-js-pdf" is our custom directive
Currently i have added hidden field and take static value but you can add dynamic value as per your requirement and you can take any other html element as per your requirement
Related
I'm having a hard time getting anything to work with this the way I need it, but I have a working dropzone instance in my Vue project.
I can upload the image and call functions within the dropzone code, however, I need to call a function directly from the form in the html in order to send the 'card' object.
All I need to do is call a function when a file is added through the dropzone form, with the filename.
My code:
<div class="uk-width-3-10">
<form v-on:change="imageChange(card)" method="post" action="{{url('product/parts/upload/store')}}" enctype="multipart/form-data"
class="dropzone" v-bind:id="'dropzone-'+i">
</form>
</div>
...
imageChange(Card){
console.log('working');
},
addCard(){
Vue.nextTick(function () {
new Dropzone("#dropzone-"+cardIndex, {
maxFilesize: 12,
renameFile: function (file) {
var dt = new Date();
var time = dt.getTime();
return time + file.name;
},
acceptedFiles: ".jpeg,.jpg,.png,.gif",
addRemoveLinks: true,
timeout: 50000,
removedfile: function (file) {
console.log(file.upload.filename);
var name = file.upload.filename;
var fileRef;
return (fileRef = file.previewElement) != null ?
fileRef.parentNode.removeChild(file.previewElement) : void 0;
},
init: function() {
this.on("addedfile",
function(file) {
instance.imageZoneNames.push({name: file.upload.filename});
console.log(file);
console.log(instance.imageZoneNames);
});
}
});
});
}
Dropzone has many events, You used removedfile() event! there is another event called addedfile() and executes when a file is added to the dropzone list
imageChange(card) {
console.log(card)
},
addCard() {
Vue.nextTick(() => {
new Dropzone('#dropzone-` + cardIndex, {
addedfile(file) {
this.imageChange(file);
}
}
}
}
Trying to make a component in Vue.js, which first shows image via thumbnail, loading full image in background, and when loaded, show full image.
The thing which does not work, component does not react on change of showThumb flag in watch section. What is wrong?
Vue.component('page-image',
{
props: ['data'],
template:
'<img v-if="showThumb == true" v-bind:src="thumbSrc"></img>'+
'<img v-else v-bind:src="fullSrc"></img>',
data: function()
{
return { thumbSrc: '', fullSrc: '', showThumb: true };
},
watch:
{
data: function()
{
this.thumbSrc = data.thumbImg.url;
this.fullSrc = data.fullImg.url;
this.showThumb = true;
var imgElement = new Image();
imgElement.src = this.fullSrc;
imgElement.onload = (function()
{
this.showThumb = false; // <<-- this part is broken
} );
}
}
} );
Note: there is a reason why I do it via 2 img tags - this example is simplified.
Your onload callback will have a different scope than the surrounding watch function, so you cannot set your data property like this. Change it to an arrow function to keep scope:
imgElement.onload = () =>
{
this.showThumb = false;
};
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions
I worked with backbone before and was wondering if there's a similar way to achieve this kind of pattern in dojo. Where you have a router and pass one by one your view separately (like layers) and then you can add their intern functionality somewhere else (e.g inside the view) so the code is very modular and can be change/add new stuff very easily. This code is actually in jquery (and come from a previous project) and it's a "common" base pattern to develop single application page under jquery/backbone.js .
main.js
var AppRouter = Backbone.Router.extend({
routes: {
"home" : "home"},
home: function(){
if (!this.homeView) {
this.homeView= new HomeView();
}
$('#content').html(this.homeView.el);
this.homeView.selectMenuItem('home-link');
}};
utils.loadTemplate(['HomeView'], function() {
app = new AppRouter();
Backbone.history.start();
});
utils.js
loadTemplate: function(views, callback) {
var deferreds = [];
$.each(views, function(index, view) {
if (window[view]) {
deferreds.push($.get('tpl/' + view + '.html', function(data) {
window[view].prototype.template = _.template(data);
}));
} else {
alert(view + " not found");
}
});
$.when.apply(null, deferreds).done(callback);
}};
HomeView.js
window.HomeView = Backbone.View.extend({
initialize:function () {
this.render();
},
render:function () {
$(this.el).html(this.template());
return this;
}
});
And basically, you just pass the html template. This pattern can be called anywhere with this link:
<li class="active"><i class="icon-home"></i> Dashboard</li>
Or, what is the best way to implement this using dojo boilerplate.
The 'boilerplate' on this subject is a dojox.mvc app. Reference is here.
From another aspect, see my go at it a while back, ive setup an abstract for 'controller' which then builds a view in its implementation.
Abstract
Then i have an application controller, which does following on its menu.onClick
which fires loading icon,
unloads current pane (if forms are not dirty)
loads modules it needs (defined 'routes' in a main-menu-store)
setup view pane with a new, requested one
Each view is either simply a server-html page or built with a declared 'oocms' controller module. Simplest example of abstract implementation here . Each implements an unload feature and a startup feature where we would want to dereference stores or eventhooks in teardown - and in turn, assert stores gets loaded etc in the setup.
If you wish to use templates, then base your views on the dijit._TemplatedMixin
edit
Here is a simplified clarification of my oocms setup, where instead of basing it on BorderLayout, i will make it ContentPanes:
Example JSON for the menu, with a single item representing the above declared view
{
identifier: 'view',
label: 'name',
items: [
{ name: 'myForm', view: 'App.view.MyForm', extraParams: { foo: 'bar' } }
]
}
Base Application Controller in file 'AppPackagePath/Application.js'
Note, the code has not been tested but should give a good impression of how such a setup can be implemented
define(['dojo/_base/declare',
"dojo/_base/lang",
"dijit/registry",
"OoCmS/messagebus", // dependency mixin which will monitor 'notify/progress' topics'
"dojo/topic",
"dojo/data/ItemFileReadStore",
"dijit/tree/ForestStoreModel",
"dijit/Tree"
], function(declare, lang, registry, msgbus, dtopic, itemfilereadstore, djforestmodel, djtree) {
return declare("App.Application", [msgbus], {
paneContainer: NULL,
treeContainer: NULL,
menuStoreUrl: '/path/to/url-list',
_widgetInUse: undefined,
defaultPaneProps: {},
loading: false, // ismple mutex
constructor: function(args) {
lang.mixin(this, args);
if(!this.treeContainer || !this.paneContainer) {
console.error("Dont know where to place components")
}
this.defaultPaneProps = {
id: 'mainContentPane'
}
this.buildRendering();
},
buildRendering: function() {
this.menustore = new itemfilereadstore({
id: 'appMenuStore',
url:this.menuStoreUrl
});
this.menumodel = new djforestmodel({
id: 'appMenuModel',
store: this.menustore
});
this.menu = new djtree( {
model: this.menumodel,
showRoot: false,
autoExpand: true,
onClick: lang.hitch(this, this.paneRequested) // passes the item
})
// NEEDS a construct ID HERE
this.menu.placeAt(this.treeContainer)
},
paneRequested: function(item) {
if(this.loading || !item) {
console.warn("No pane to load, give me a menustore item");
return false;
}
if(!this._widgetInUse || !this._widgetInUse.isDirty()) {
dtopic.publish("notify/progress/loading");
this.loading = true;
}
if(typeof this._widgetInUse != "undefined") {
if(!this._widgetInUse.unload()) {
// bail out if widget says 'no' (isDirty)
return false;
}
this._widgetInUse.destroyRecursive();
delete this._widgetInUse;
}
var self = this,
modules = [this.menustore.getValue(item, 'view')];
require(modules, function(viewPane) {
self._widgetInUse = new viewPane(self.defaultProps);
// NEEDS a construct ID HERE
self._widgetInUse.placeAt(this.paneContainer)
self._widgetInUse.ready.then(function() {
self.paneLoaded();
})
});
return true;
},
paneLoaded: function() {
// hide ajax icons
dtopic.publish("notify/progress/done");
// assert widget has started
this._widgetInUse.startup();
this.loading = false;
}
})
})
AbstractView in file 'AppPackagePath/view/AbstractView.js':
define(["dojo/_base/declare",
"dojo/_base/Deferred",
"dojo/_base/lang",
"dijit/registry",
"dijit/layout/ContentPane"], function(declare, deferred, lang, registry, contentpane) {
return declare("App.view.AbstractView", [contentpane], {
observers: [], // all programmatic events handles should be stored for d/c on unload
parseOnLoad: false,
constructor: function(args) {
lang.mixin(this, args)
// setup ready.then resolve
this.ready = new deferred();
// once ready, create
this.ready.then(lang.hitch(this, this.postCreate));
// the above is actually not nescessary, since we could simply use onLoad in contentpane
if(typeof this.content != "undefined") {
this.set("content", this.content);
this.onLoad();
} else if(typeof 'href' == "undefined") {
console.warn("No contents nor href set in construct");
}
},
startup : function startup() {
this.inherited(arguments);
},
// if you override this, make sure to this.inherited(arguments);
onLoad: function() {
dojo.parser.parse(this.contentNode);
// alert the application, that loading is done
this.ready.resolve(null);
// and call render
this.render();
},
render: function() {
console.info('no custom rendering performed in ' + this.declaredClass)
},
isDirty: function() { return false; },
unload: function() {
dojo.forEach(this.observers, dojo.disconnect);
return true;
},
addObserver: function() {
// simple passthrough, adding the connect to handles
var handle = dojo.connect.call(dojo.window.get(dojo.doc),
arguments[0], arguments[1], arguments[2]);
this.observers.push(handle);
}
});
});
View implementation sample in file 'AppPackagePath/view/MyForm.js':
define(["dojo/_base/declare",
"dojo/_base/lang",
"App/view/AbstractView",
// the contentpane href will pull in some html
// in the html can be markup, which will be renderered when ready
// pull in requirements here
"dijit/form/Form", // markup require
"dijit/form/Button" // markup require
], function(declare, lang, baseinterface) {
return declare("App.view.MyForm", [baseinterface], {
// using an external HTML file
href: 'dojoform.html',
_isDirty : false,
isDirty: function() {
return this._isDirty;
},
render: function() {
var self = this;
this.formWidget = dijit.byId('embeddedForm') // hook up with loaded markup
// observer for children
dojo.forEach(this.formWidget._getDescendantFormWidgets(), function(widget){
if(! lang.isFunction(widget.onChange) )
console.log('unable to observe ' + widget.id);
self.addObserver(widget, 'onChange', function() {
self._isDirty = true;
});
});
//
},
// #override
unload: function() {
if(this.isDirty()) {
var go = confirm("Sure you wish to leave page before save?")
if(!go) return false;
}
return this.inherited(arguments);
}
})
});
I have a DataGrid that I already filtered using grid.filter(query, rerender). If I add another item, after calling save() I see the new item in the grid even though it shouldn't display because of the filter. I'm thinking "ok, I'll just filter it again when the store finishes saving. But after calling grid.filter with the same query all the rows disappear. Any ideas what I might be doing wrong?
Code to filter the grid:
var filterQuery = dijit.byId("filterTextbox").attr("value");
var grid = dijit.byId("grid");
var queryValue = "*";
if(filterQuery != ""){
queryValue += filterQuery + "*";
}
grid.filter({name: queryValue}, true);
Code to add new items to the grid
function addItemToGrid(newItemName){
var newItem = {name: newItemName};
var grid = dijit.byId("grid");
var store = grid.store;
store.addItem(newItem);
store.save();
}
Try to use:
store.newItem(newItem);
instead of store.addItem(newItem);
(addItem is not a standard method to add items into store)
Inside of your addItemToGrid function, try adding an onComplete listener to your save method and sort or filter the grid in the onComplete function
store.save({onComplete: function() {
grid.filter({name: queryValue}, true);
}
});
I had the same problem and only managed to fix it by running the grid filter periodically in the background with the help of some jQuery. Here is some sample code; hope this helps someone else having problems with this.
// ADD JQUERY
<script src="http://code.jquery.com/jquery-latest.js"></script>
.
// PUT THIS IN THE <HEAD> OF THE PAGE
<script type="text/javascript">
$(document).ready(function() {
function filterTheDataGrid() {
if (dijit.byId("grid") != undefined) {
dijit.byId("grid").filter({color: "Red"});
}
}
// RUN THE filterTheDataGrid FUNCTION EVERY ONE SECOND (1000 MILLISECONDS) //
// LOWER '1000' FOR FASTER REFRESHING, MAYBE TO 500 FOR EVERY 0.5 SECOND REFRESHES //
var refreshDataGrid = setInterval(function() { filterTheDataGrid(); }, 1000);
}
</script>
.
// PUT THIS IN THE <HEAD> OF THE PAGE
<script type="text/javascript">
// SETUP THE LAYOUT FOR THE DATA //
var layoutItems = [[
{
field: "id",
name: "ID",
width: '5px',
hidden: true
},
{
field: "color",
name: "Color",
width: '80px'
}
]];
// Create an empty datastore //
var storeData = {
identifier: 'id',
label: 'id',
items: []
}
var store3 = new dojo.data.ItemFileWriteStore( {data : storeData} );
</script>
.
// PUT THIS IN THE <HTML> OF THE PAGE
<div id="grid" dojoType="dojox.grid.DataGrid" jsId="grid5" store="store3" structure="layoutItems" query="{ type: '*' }" clientSort="true" rowsPerPage="40"></div>
.
<script type="text/javascript">
function addItemToGrid(formdata) {
// THIS FUNCTION IS CALLED BY A DIALOG BOX AND GETS FORM DATA PASSED TO IT //
var jsonobj = eval("(" + dojo.toJson(formData, true) + ")");
var myNewItem = {
id: transactionItemID,
color: jsonobj.color
};
// Insert the new item into the store:
store3.newItem(myNewItem);
store3.save({onComplete: savecomplete, onError: saveerror});
}
</script>
i need to create a Dojo widget that lets users specify date & time. i found a sample implementation attached to an entry in the Dojo bug tracker. It looks nice and mostly works, but when i submit the form, the value sent by the client is not the user-selected value but the value sent from the server.
What changes do i need to make to get the widget to submit the date & time value?
Sample usage is to render a JSP with basic HTML tags (form & input), then
dojo.addOnLoad a function which selects the basic elements by ID, adds dojoType
attribute, and dojo.parser.parse()-es the page.
Thanks in advance.
The widget is implemented in two files. The application uses Dojo 1.3.
File 1: DateTimeCombo.js
dojo.provide("dojox.form.DateTimeCombo");
dojo.require("dojox.form._DateTimeCombo");
dojo.require("dijit.form._DateTimeTextBox");
dojo.declare(
"dojox.form.DateTimeCombo",
dijit.form._DateTimeTextBox,
{
baseClass: "dojoxformDateTimeCombo dijitTextBox",
popupClass: "dojox.form._DateTimeCombo",
pickerPostOpen: "pickerPostOpen_fn",
_selector: 'date',
constructor: function (argv) {},
postMixInProperties: function()
{
dojo.mixin(this.constraints, {
/*
datePattern: 'MM/dd/yyyy HH:mm:ss',
timePattern: 'HH:mm:ss',
*/
datePattern: 'MM/dd/yyyy HH:mm',
timePattern: 'HH:mm',
clickableIncrement:'T00:15:00',
visibleIncrement:'T00:15:00',
visibleRange:'T01:00:00'
});
this.inherited(arguments);
},
_open: function ()
{
this.inherited(arguments);
if (this._picker!==null && (this.pickerPostOpen!==null && this.pickerPostOpen!==""))
{
if (this._picker.pickerPostOpen_fn!==null)
{
this._picker.pickerPostOpen_fn(this);
}
}
}
}
);
File 2: _DateTimeCombo.js
dojo.provide("dojox.form._DateTimeCombo");
dojo.require("dojo.date.stamp");
dojo.require("dijit._Widget");
dojo.require("dijit._Templated");
dojo.require("dijit._Calendar");
dojo.require("dijit.form.TimeTextBox");
dojo.require("dijit.form.Button");
dojo.declare("dojox.form._DateTimeCombo",
[dijit._Widget, dijit._Templated],
{
// invoked only if time picker is empty
defaultTime: function () {
var res= new Date();
res.setHours(0,0,0);
return res;
},
// id of this table below is the same as this.id
templateString:
" <table class=\"dojoxDateTimeCombo\" waiRole=\"presentation\">\
<tr class=\"dojoxTDComboCalendarContainer\">\
<td>\
<center><input dojoAttachPoint=\"calendar\" dojoType=\"dijit._Calendar\"></input></center>\
</td>\
</tr>\
<tr class=\"dojoxTDComboTimeTextBoxContainer\">\
<td>\
<center><input dojoAttachPoint=\"timePicker\" dojoType=\"dijit.form.TimeTextBox\"></input></center>\
</td>\
</tr>\
<tr><td><center><button dojoAttachPoint=\"ctButton\" dojoType=\"dijit.form.Button\">Ok</button></center></td></tr>\
</table>\
",
widgetsInTemplate: true,
constructor: function(arg) {},
postMixInProperties: function() {
this.inherited(arguments);
},
postCreate: function() {
this.inherited(arguments);
this.connect(this.ctButton, "onClick", "_onValueSelected");
},
// initialize pickers to calendar value
pickerPostOpen_fn: function (parent_inst) {
var parent_value = parent_inst.attr('value');
if (parent_value !== null) {
this.setValue(parent_value);
}
},
// expects a valid date object
setValue: function(value) {
if (value!==null) {
this.calendar.attr('value', value);
this.timePicker.attr('value', value);
}
},
// return a Date constructed date in calendar & time in time picker.
getValue: function() {
var value = this.calendar.attr('value');
var result=value;
if (this.timePicker.value !== null) {
if ((this.timePicker.value instanceof Date) === true) {
result.setHours(this.timePicker.value.getHours(),
this.timePicker.value.getMinutes(),
this.timePicker.value.getSeconds());
return result;
}
} else {
var defTime=this.defaultTime();
result.setHours(defTime.getHours(),
defTime.getMinutes(),
defTime.getSeconds());
return result;
}
},
_onValueSelected: function() {
var value = this.getValue();
this.onValueSelected(value);
},
onValueSelected: function(value) {}
});
It sounds like you want to use getValue. The convention now is to use _getValueAttr and then call attr("value") but I think that started in Dojo 1.4 and this code would need to be ported to use those new patterns.
Noe that value should be a Javascript Date object which would best be sent to the server using dojo.date.stamp.toISOString()
This began to work fine after i added a "serialize" method to DateTimeCombo.js which builds exactly the output format i want.
This seems odd to me, since there is already a serialize implementation in _DateTimeTextBox.js that should output the value in the required ISO format.