Develop Reference

javascript download button instead of right click

I'm trying to make a video downloader for instagram but whenever I fetch the video url it does not download I have to right click and save. is there a way I could make a download button instead of right click to save?
here my code
$("#getMedia").click(getMedia);
var render = document.querySelector("#media");
function createMedia(data, type) {
var media = document.createElement(type);
media.id = "instagramMedia";
media.src = data.content;
media.setAttribute("class", "");
media.width = $(render).width();
if (type === "video") {
media.controls = true;
media.autoplay = true;
}
render.innerHTML = "";
var downloadMsg = document.createElement("p");
downloadMsg.setAttribute("class", "bg-success text-info");
downloadMsg.innerText = "Right Click on the Media below to get Save Option!";
render.appendChild(downloadMsg);
render.appendChild(media);
}
function getMedia() {
var url = $("#postUrl").val();
if (url) {
$.get(url, function (data) {
render.innerHTML = data;
var mediaWaitTimer = setTimeout(function () {
var video = document.querySelector('meta[property="og:video"]');
if (video) {
createMedia(video, "video");
} else {
var img = document.querySelector('meta[property="og:image"]');
if (img) {
createMedia(img, "img");
} else {
document.body.innerHTML = body;
alert("Error extracting Instagram image / video.");
};
}
clearTimeout(mediaWaitTimer);
}, 200);
});
} else {
document.querySelector("#media").setAttribute("placeholder", "Invalid Address, Please Enter Proper Insagram Link");
}
}

Set download attribute for your clickable html element probably in your createMedia function.
<a href="myvideo.mp4" download>Download</a>
for reference visit : https://www.w3schools.com/tags/att_a_download.asp

How to change the text with JS

I am trying to modify this code, so after I create the column, and let's say I want to change the title of it, so I have the edit button, once I click that one, I want to be able to type and change the title of the column.
For the whole code click here.
function Column(name) {
if (name.length > 0) {
var self = this; // useful for nested functions
this.id = randomString();
this.name = name;
this.$element = createColumn();
function createColumn() {
var $column = $("<div>").addClass("column");
var $columnTitle = $("<h3>")
.addClass("column-title")
.text(self.name);
var $columnTitleEdit = $("<button>")
.addClass("btn-edit")
.text("Edit");
var $columnCardList = $("<ul>").addClass("column-card-list");
var $columnDelete = $("<button>")
.addClass("btn-delete")
.text("x");
var $columnAddCard = $("<button>")
.addClass("add-card")
.text("Add a card");
$columnDelete.click(function() {
self.removeColumn();
});
$columnAddCard.click(function(event) {
self.addCard(new Card(prompt("Enter the name of the card")));
});
$columnTitleEdit.click(function(event) { //How to edit this code here so i can rename the title of the Column?
self.editTitle();
});
$column
.append($columnTitle)
.append($columnDelete)
.append($columnAddCard)
.append($columnCardList)
.append($columnTitleEdit);
return $column;
}
} else if (name.length == 0) {
alert("please type something");
$(".create-column").click();
} else {
return;
}
}
Column.prototype = {
addCard: function(card) {
this.$element.children("ul").append(card.$element);
},
removeColumn: function() {
this.$element.remove();
},
editTitle: function() {
if (this.$element == "true") {
this.$element.contentEditable = "false"; //How to edit this code here so i can rename the title of the Column?
} else {
this.$element == "true";
}
}
};

All you have to do is to add an event listener to the edit button. The handler should either replace the title with a textarea, or add the contenteditable attribute to the title element. Here's an example:
// ...
var $columnTitleEdit = $("<button>")
.addClass("btn-edit")
.text("Edit")
.on("click", function(){ //The event listener
if ($(this).hasClass("btn-save")){ //If we're currently editing the title
$columnTitle.attr("contenteditable", false);
$(this).text("Edit").removeClass("btn-save");
} else { //If we're not editing the title
$columnTitle.attr("contenteditable", true).focus();
$(this).text("Save").addClass("btn-save");
}
});

Remove dynamically created elements by class name Javascript

So, in plain terms I am creating a Chrome Extension that so far can only save links from the internet but not delete them. What I want to add is a "remove" button for deleting unwanted links. So far I haven't got that to work.
The buttons I want to remove are added using JavaScript. Each new block of HTML features a "remove" button but clicking that button does nothing. I have tried binding listeners to each element using a for loop but that doesn't seem to work.
The code runs without errors and I'm certain that the issue is a slight oversight but I have only just started using JavaScript so I'm lost for solutions at the moment.
I have included all the code because I don't want to leave out anything that might be imperative to finding a solution.
It starts with the code for adding a link, followed by removing a single link and then removing all links at once. Thank you all for any help, really want to get this working.
https://github.com/mmmamer/Drop Repository for the rest of the code. Mainly popup.html and popup.css.
var urlList = [];
var i = 0;
document.addEventListener('DOMContentLoaded', function() {
getUrlListAndRestoreInDom();
// event listener for the button inside popup window
document.getElementById('save').addEventListener('click', addLink);
});
function addLink() {
var url = document.getElementById("saveLink").value;
addUrlToListAndSave(url);
addUrlToDom(url);
}
function getUrlListAndRestoreInDom() {
chrome.storage.local.get({
urlList: []
}, function(data) {
urlList = data.urlList;
urlList.forEach(function(url) {
addUrlToDom(url);
});
});
}
function addUrlToDom(url) {
// change the text message
document.getElementById("saved-pages").innerHTML = "<h2>Saved pages</h2>";
var newEntry = document.createElement('li');
var newLink = document.createElement('a');
var removeButton = document.createElement('button');
removeButton.textContent = "Remove";
//removeButton.createElement('button');
removeButton.type = "button";
removeButton.className = "remove";
newLink.textContent = url;
newLink.setAttribute('href', url);
newLink.setAttribute('target', '_blank');
newEntry.appendChild(newLink)
newEntry.appendChild(removeButton);
newEntry.className = "listItem";
document.getElementById("list").appendChild(newEntry);
}
function addUrlToListAndSave(url) {
urlList.push(url);
saveUrlList();
//}
}
function saveUrlList(callback) {
chrome.storage.local.set({
urlList
}, function() {
if (typeof callback === 'function') {
//If there was no callback provided, don't try to call it.
callback();
}
});
}
// remove a single bookmark item
document.addEventListener('DOMContentLoaded', function() {
getUrlListAndRestoreInDom();
var allButtons = document.getElementsByClassName('remove');
function listenI(i) {
allButtons[i].addEventListener('click', () => removeMe(i));
}
for (var i = 0; i < allButtons.length; i++) {
listenI(i);
}
});
function removeMe(i) {
var fullList = documents.getElementsByClassName('listItem');
listItem[i].parentNode.removeChild(listItem[i]);
}
//remove all button
document.addEventListener('DOMContentLoaded', function() {
document.getElementById("remove-all").addEventListener('click', function() {
var removeList = document.getElementsByClassName("listItem");
while(removeList[0]) {
removeList[0].parentNode.removeChild(removeList[0]);
}
})
});

chrome.storage.local.get() is asynchronous. So when you try to add the event listeners to the Remove buttons, they're not in the DOM yet.
You can add the listener in the addUrlToDom() function instead. That way you'll also add the event listener when you create new buttons.
function addUrlToDom(url) {
// change the text message
document.getElementById("saved-pages").innerHTML = "<h2>Saved pages</h2>";
var newEntry = document.createElement('li');
var newLink = document.createElement('a');
var removeButton = document.createElement('button');
removeButton.textContent = "Remove";
//removeButton.createElement('button');
removeButton.type = "button";
removeButton.className = "remove";
newLink.textContent = url;
newLink.setAttribute('href', url);
newLink.setAttribute('target', '_blank');
newEntry.appendChild(newLink)
newEntry.appendChild(removeButton);
removeButton.addEventListener("click", function() {
var anchor = this.previousElementSibling;
var url = anchor.getAttribute("href");
removeUrlAndSave(url);
this.parentNode.remove();
});
newEntry.className = "listItem";
document.getElementById("list").appendChild(newEntry);
}
function removeUrlAndSave(url) {
var index = urlList.indexOf(url);
if (index != -1) {
urlList.splice(index, 1);
saveUrlList();
}
}

ng-change is not triggered (used along with a directive)

I have the following html code
<input type="file" ng-model="Import" file-reader="fileContent" ng-change="getList();"/>
As shown above, i am trying to load a text file and get it contents on ng-change.
Here is the directive 'fileReader'
ngUtilityMod.directive('fileReader', function () {
return {
scope: {
fileReader: "="
},
link: function (scope, element) {
$(element).on('change', function (changeEvent) {
var r = new FileReader();
var CSVfile;
var checkCSV = changeEvent.target.files[0].name;
checkCSV = checkCSV.slice(-4);
if (checkCSV === '.csv') {
CSVfile = true;
}
else { CSVfile = false; }
if (changeEvent.target.files[0].type === 'text/plain' || CSVfile === true) {
var files = changeEvent.target.files;
if (files.length) {
r.onload = function (e) {
var contents = e.target.result;
scope.$apply(function () {
scope.fileReader = contents;
});
};
r.readAsText(files[0]);
}
}
else {
'data';
}
});
}
};
});
When ng-change is triggered, i should be able to get to below function. The issue here is that ng-change is not getting triggered at all. If i use ng-click or any other angularjs events, it is able to detect. Can someone please let me know why i am unable to trigger ng-change here
$scope.getList = function () {
$scope.getImport = function (fileContent) {
} // function to load CSV data during import feature.
if (angular.isDefined($scope.fileContent)) {
$scope.Import = $scope.fileContent;
console.log($scope.params);
}
};

Modified code is not correct for the getvalue and setvalue

My code was working fine but they wanted to change my code....
they wanted to attach setValue and getValue added directly to
footballPanel instead of sports grid,
but after adding it the code is not working fine...
can you tell me why its not working....
providing my modified code below...
the UI action here I am performing is there are two radio buttons,
when I click each radio button two different grids open
in one of the grid we add value, when i switch back to another radio
button the values in another grid disappears but it should not
disappear...
after I modified the code the values disappear, can you tell me why?
Only part of modified code here
else {
this.setDisabled(true);
this.addCls("sports-item-disabled");
if (sportsGrid.store.getCount() > 0) {
var footballPanel = sportsGrid.up('panel');
footballPanel.holdValue = footballPanel.getValue();
footballPanel.setValue();
sportsGrid.addCls("sports-item-disabled");
}
}
Whole modified code:
sportsContainerHandler: function(radioGroup, newValue, oldValue, options) {
var sportsCustomParams = options.sportsCustomParams;
var uiPage = this.up('football-ux-sports-ui-page');
var SportsDefinition = metamodelsHelper.getSportsDefinition(
uiPage, sportsCustomParams.SportsHandlerDefinitionId);
var sportsFieldParam = SportsDefinition.params['sportsMultiFieldName'];
var sportsGrid = uiPage.queryById(sportsFieldParam.defaultValue).grid;
if (newValue[radioGroup.name] == 'sportss') {
this.setDisabled(false);
this.removeCls("sports-item-disabled");
if (sportsGrid.holdValue) {
var footballPanel = sportsGrid.up('panel');
footballPanel.setValue(sportsGrid.holdValue);
}
} else {
this.setDisabled(true);
this.addCls("sports-item-disabled");
**if (sportsGrid.store.getCount() > 0) {
var footballPanel = sportsGrid.up('panel');
footballPanel.holdValue = footballPanel.getValue();
footballPanel.setValue();
sportsGrid.addCls("sports-item-disabled");
}**
}
},
Working code without modification
sportsContainerHandler: function(radioGroup, newValue, oldValue, options) {
var sportsCustomParams = options.sportsCustomParams;
var uiPage = this.up('football-ux-sports-ui-page');
var SportsDefinition = metamodelsHelper.getSportsDefinition(
uiPage, sportsCustomParams.SportsHandlerDefinitionId);
var sportsFieldParam = SportsDefinition.params['sportsMultiFieldName'];
var sportsGrid = uiPage.queryById(sportsFieldParam.defaultValue).grid;
if (newValue[radioGroup.name] == 'sportss') {
this.setDisabled(false);
this.removeCls("sports-item-disabled");
if (sportsGrid.holdValue) {
var footballPanel = sportsGrid.up('panel');
footballPanel.setValue(sportsGrid.holdValue);
}
} else {
this.setDisabled(true);
this.addCls("sports-item-disabled");
if (sportsGrid.store.getCount() > 0) {
sportsGrid.holdValue = sportsGrid.store.data.items;
sportsGrid.store.loadData([]);
sportsGrid.addCls("sports-item-disabled");
}
}
},

getValue() is not a method of ExtJS Panel class.
The change in your code, from sportsGrid (Ext.grid.Panel) to footbalPanel (Ext.panel.Panel) won't work, because they are from different classes and therefore have different properties and methods.
If you want this code to work, you'll need to implement getValue() and setValue(). For example, something like:
On FootballPanel class:
getValue: function () {
return this.down('grid').store.data.items;
},
setValue: function (newValue) {
if (!newValue)
newValue = new Array();
this.down('grid').store.loadData(newValue);
},
And use your modified code:
sportsContainerHandler: function(radioGroup, newValue, oldValue, options) {
var sportsCustomParams = options.sportsCustomParams;
var uiPage = this.up('football-ux-sports-ui-page');
var SportsDefinition = metamodelsHelper.getSportsDefinition(
uiPage, sportsCustomParams.SportsHandlerDefinitionId);
var sportsFieldParam = SportsDefinition.params['sportsMultiFieldName'];
var sportsGrid = uiPage.queryById(sportsFieldParam.defaultValue).grid;
if (newValue[radioGroup.name] == 'sportss') {
this.setDisabled(false);
this.removeCls("sports-item-disabled");
if (sportsGrid.holdValue) {
var footballPanel = sportsGrid.up('panel');
footballPanel.setValue(sportsGrid.holdValue);
}
} else {
this.setDisabled(true);
this.addCls("sports-item-disabled");
if (sportsGrid.store.getCount() > 0) {
var footballPanel = sportsGrid.up('panel');
footballPanel.holdValue = footballPanel.getValue();
footballPanel.setValue([]);
sportsGrid.addCls("sports-item-disabled");
}
}
},