I need to prevent/disable nested lists in text editor implemented in Angular. So far i wrote a hack that undos a nested list when created by the user. But if the user creates a normal list and presses the tab-key the list is shown as nested for a few milliseconds until my hack sets in back to a normal list. I need something like event.preventDefault() or stopPropagation() on tab-event keydown but unfortunately that event is not tracked for some reason. Also the froala settings with tabSpaces: falseis not showing any difference when it comes to nested list...in summary i want is: if the user creates a list and presses the tab-key that nothing happens, not even for a millisecond. Has anyone an idea about that?
Froala’s support told us, there’s no built-in way to suppress nested list creation. They result from TAB key getting hit with the caret on a list item. However we found a way to get around this using MutationObserver
Basically we move the now nested list item to his former sibling and remove the newly created list. Finally we take care of the caret position.
var observer = new MutationObserver(mutationObserverCallback);
observer.observe(editorNode, {
childList: true,
subtree: true
});
var mutationObserverCallback = function (mutationList) {
var setCaret = function (ele) {
if (ele.nextSibling) {
ele = ele.nextSibling;
}
var range = document.createRange();
var sel = window.getSelection();
range.setStart(ele, 0);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
};
var handleAddedListNode = function (listNode) {
if (! listNode.parentNode) {
return;
}
var parentListItem = listNode.parentNode.closest('li');
if (!parentListItem) {
return;
}
var idx = listNode.children.length - 1;
while (idx >= 0) {
var childNode = listNode.children[idx];
if (parentListItem.nextSibling) {
parentListItem.parentNode.insertBefore(childNode, parentListItem.nextSibling);
} else {
parentListItem.parentNode.appendChild(childNode);
}
--idx;
}
setCaret(parentListItem);
listNode.parentNode.removeChild(listNode);
};
mutationList.forEach(function (mutation) {
var addedNodes = mutation.addedNodes;
if (!addedNodes.length) {
return;
}
for (var i = 0; i < addedNodes.length; i++) {
var currentNode = addedNodes[i];
switch (currentNode.nodeName.toLowerCase()) {
case 'ol':
case 'ul':
handleAddedListNode(currentNode);
break;
// more optimizations
}
}
})
};
Related
I have this code in node js / firebase :
ref.child("recipts").once("value", function(usersSnap) {
usersSnap.forEach(function(reciptsSnap) {
reciptsSnap.forEach(function(reciptSnap) {
reciptSnap.ref.child("last_recipt").once("value", function(b) {
b.forEach(function(c) { //Here I fill some "product" object
});
});
reciptSnap.forEach(function(b) { //Here I fill some "product" object
});
});
});
});
I need to execute a function just when "reciptSnap" forEachs finished. How can I accomplish this, I try using a variable i++ and i-- but only work for one forEach iteration.
The function I call is for manipulating the product object I created with the filled data from the forEachs loops.
If I have understood correctly, you want to call a function when reciptsSnap.forEach is complete and all async tasks inside it are also complete.
For achieving this, you can use the index parameter and the original array that is passed to the callback function of forEach. (See Documentation)
The code will be like this:
(Note: The following code is without changing the current forEach loop structure used. However, re-writing the code with Promise or async would be a better & cleaner way to do it).
var loop1Done = false;
var loop2Done = false;
ref.child("recipts").once("value", function (usersSnap) {
usersSnap.forEach(function (reciptsSnap) {
reciptsSnap.forEach(function (reciptSnap, index, colA) {
const idx = index;
const col = colA;
reciptSnap.ref.child("last_recipt").once("value", function (b) {
const i = idx;
const c = col;
b.forEach(function (c, j, colB) { //Here I fill some "product" object
// Do what you want here
// Check if all done for this loop
if ((j >= colB.length) && (i >= c.length)) {
loop1Done = true;
// Check if all loops done
if (loop1Done && loop2Done) {
// Call final callback function
// e.g. myFinalCallback();
}
}
});
});
reciptSnap.forEach(function (b, k, colC) { //Here I fill some "product" object
const i = idx;
const c = col;
// Do what you want here
// Check if all done for this loop
if ((k >= colC.length) && (i >= c.length)) {
loop2Done = true;
// Check if all loops done
if (loop1Done && loop2Done) {
// Call final callback function
// e.g. myFinalCallback();
}
}
});
});
});
});
Try:
reciptSnap.child("last_recipt").forEach(function(b) {
b.forEach(function(c) {
//Here I fill some "product" object
});
});
This should work since all of your data should already have been fetched when you did "value" on the receipts node.
If this works, your code is no longer asynchronous and right after the last forEach, you can execute the function you wanted to.
reciptSnap.forEach(function(b) {
//Here I fill some "product" object
});
//Execute your function here
});
I am new to Phaserjs, trying to create basic drag-drop style game.
I have created the game and add arcade physics (this.game.physics.arcade.enable(this.orange_outline);)
Currently overlap happen as soon as the edges collide.
I want to detect that my code should trigger when 50% overlap happen. is it possible in phaserjs?
var GameState = {
init:function(){
this.physics.startSystem(Phaser.Physics.ARCADE);
},
create: function () {
this.background = this.game.add.sprite(0, 0, 'background');
this.overlapHappen = false;
this.orange_outline = this.game.add.sprite(459,199,'orange_outline');
this.orange_outline.frame = 2;
this.orange_outline.anchor.setTo(.5);
this.orange_outline.customParams = {myName:'orange_outline',questionImg:'orange'};
this.orange_inner = this.game.add.sprite(150,197,'orange_inner');
this.orange_inner.anchor.setTo(.5);
this.orange_inner.customParams = {myName:'orange_inner',questionImg:'orange',targetKey:this.orange_outline,targetImg:'orange_outline'};
this.orange_inner.frame = 1;
this.orange_inner.inputEnabled = true;
this.orange_inner.input.enableDrag();
this.orange_inner.input.pixelPerfectOver = true;
this.orange_inner.events.onDragStart.add(this.onDragStart,this);
// this.game.physics.enable(this.orange_inner,Phaser.Physics.ARCADE);
this.game.physics.arcade.enable(this.orange_inner);
this.game.physics.arcade.enable(this.orange_outline);
this.orange_inner.events.onDragStop.add(this.onDragStop,this);
},
update: function () {
//this.orange.animations.play('orange_one',1)
},
onDragStart:function(sprite,pointer){
//console.log(sprite.key + " dragged")
},
onDragStop:function(sprite,pointer){
var endSprite = sprite.customParams.targetKey;
//console.log(sprite.customParams);
this.stopDrag(sprite,endSprite)
},
stopDrag:function(currentSprite,endSprite){
if (!this.game.physics.arcade.overlap(currentSprite, endSprite, function() {
var currentSpriteTarget = currentSprite.customParams.targetImg;
var endSpriteName = endSprite.customParams.myName;
if(currentSpriteTarget === endSpriteName){
currentSprite.input.draggable = false;
currentSprite.position.copyFrom(endSprite.position);
currentSprite.anchor.setTo(endSprite.anchor.x, endSprite.anchor.y);
}
console.log(currentSpriteTarget,endSpriteName);
})) {
//currentSprite.position.copyFrom(currentSprite.originalPosition);
console.log('you')
}
}
}
In stopDrag() I am detecting overlap.
You can try to get the amount of horizontal and vertical overlap amount and check if it satisfies a certain threshold. This can be done in additional overlap function callback, that is called processCallback in documentation. As an example:
if (!this.game.physics.arcade.overlap(currentSprite, endSprite, function() {
//your callback !
},function() {
if (this.game.physics.arcade.getOverlapX(currentSprite, endSprite) > currentSprite.width / 2
&& this.game.physics.arcade.getOverlapY(currentSprite, endSprite) > currentSprite.height / 2) {
//Overlaping !
return true;
} else {
//as if no overlap occured
return false;
}
},this) {
//
}
Another way to do this (other than what Hamdi Douss offers) is to resize your body to only take up 50% of the area. This will automatically ensure that collisions/overlap don't occur unless the reduced bodies touch each other.
To view your current body, use Phaser's debug methods
this.game.debug.body(someSprite, 'rgba(255,0,0,0.5)');
This is a bit foreign to me and I'm probably not understanding it correctly. This is what I have:
var imgModule = (function() {
var imgLocations = {};
var images = [];
imgLocations.setImage = function(img, location) {
imgLocations[img] = location;
}
imgLocations.getImg = function(img) {
return imgLocations[img];
}
imgLocations.setImageArray = function(img) {
images.push(img);
}
imgLocations.getImageArray = function() {
return images;
}
return imgLocations;
}());
I want to be able to access the imgLocations Object and images array from outside this function. The setting functions work, but
document.getElementById("but").onclick = function() {
console.log(imgModule.imgLocations.getImageArray());
console.log(imgModule.imgLocations.getImg(imgName));
}
Both return "undefined". How do I access these variables? And how can I improve this function? Please be patient with me and explain what I'm doing wrong :) I'm trying to learn it the right way instead of defining a global variable outside all functions.
The reason why this isn't working, is because your imgModule is returning the imgLocations object. That being the case, imgModule will actually be the imgLocations object. So you would access your methods like so:
imgModule.setImage()
imgModule.getImg()
imgModule.getImageArray()
imgModule.setImageArray()
And as #gillesc stated. If you are wanting to keep the current syntax of imgModule.imgLocations.getImg() then you could return the imgLocations like so
return {
imgLocations: imgLocations
}
doing so would allow you to add more functionality to your module
return {
imgLocations: imgLocations,
otherObject: otherObject
}
...
imgModule.otherObject.someFunctionCall();
The problem is you are returning the object created and are not setting it as a property of an object.
So in your case this is how it would work.
document.getElementById("but").onclick = function() {
console.log(imgModule.getImageArray());
console.log(imgModule.getImg(imgName));
}
What you need to do is return it like this
return {
imgLocations: imgLocations
}
If you want the API you are attending to create and still have access to the array which you can not do currently.
You don't access imgModule.imgLocations, since what you return is imgLocations, you should access them as:
document.getElementById("but").onclick = function() {
console.log(imgModule.getImageArray());
console.log(imgModule.getImg(imgName));
}
It seems you try to write module pattern.
For deep understanding, I recommend you following article:
The Module Pattern, by Addy Osmani
and pay attention to example with counter:
var testModule = (function () {
var counter = 0;
return {
incrementCounter: function () {
return counter++;
},
resetCounter: function () {
console.log( "counter value prior to reset: " + counter );
counter = 0;
}
};
})();
// Usage:
// Increment our counter
testModule.incrementCounter();
// Check the counter value and reset
// Outputs: counter value prior to reset: 1
testModule.resetCounter();
Hi can some one please tell me how to copy one data store to another in dojo. I tried it in following way but it doesn't work. Here I'm try to copy data from jsonStore to newGridStore.
jsonStore.fetch({query:{} , onComplete: onComplete});
var onComplete = function (items, request) {
newGridStore = null;
newGridStore = new dojo.data.ItemFileWriteStore({
data : {}
});
if (items && items.length > 0) {
var i;
for (i = 0; i < items.length; i++) {
var item = items[i];
var attributes = jsonStore.getAttributes(item);
if (attributes && attributes.length > 0) {
var j;
for (j = 0; j < attributes.length; j++) {
var newItem = {};
var values = jsonStore.getValues(item, attributes[j]);
if (values) {
if (values.length > 1) {
// Create a copy.
newItem[attributes[j]] = values.slice(0, values.length);
} else {
newItem[attributes[j]] = values[0];
}
}
}
newGridStore.newItem(newItem);
}
}
}
}
Based on the comments asked above. You are trying to copy values to a new Store for the single reason to be able to detect which values have changes and then save them individually, without having to send the entire store.
This approach is totally wrong.
Dojo has isDirty() and offers you the ability to revert() a store back to it's original values. It knows which values have changed and you don't need to do this.
Take a look at the bog standard IFWS here: http://docs.dojocampus.org/dojo/data/ItemFileWriteStore
Make sure you read everything from here: http://docs.dojocampus.org/dojo/data/ItemFileWriteStore#id8
What you want to do is create your own _saveCustom method which you will override your store with, and then when you save, you will be able to see which values have changed.
Click on the demo at the very bottom of the page. It shows you EXACTLY how do to it using _saveCustom
Using sharepoint build in lookup column and it set to required field. SharePoint automatically selects the first item in the dropdown box (kinda misleading for the end users).
Is there a way to display blank or Null for the first row of this drop down box?
(I am open to any solution. I prefer javascript type solution)
For Choice fields, the default value is configured in the column settings. If the "Default value" input box is populated, delete the value in order to use no default value.
Edit
For Lookup fields, the field seems to change dramatically if it is required. Fields that are NOT required have a "(None)" value by default. However, toggling the field to required will remove the "(None)" value and the first value is selected automatically.
One thing I found, is that if you use JavaScript to add the null value to the dropdown and then try to press OK you get an error page: "An unexpected error has occurred." As a workaround, I wrote some more code to do a quick validation that the field has a value before the form is submitted. If the field has no value, then it will prompt the user and cancel the submit. (Note: this code is only attached to the OK buttons so you may get errors while editing EditForm.aspx.. just choose a value for your lookup field and you'll be able to edit like normal)
Anyways, onto the code... I think the only line you'll need to change is var fieldTitle = 'Large Lookup Field'; to update it to the name of your field.
<script type="text/javascript">
function GetDropdownByTitle(title) {
var dropdowns = document.getElementsByTagName('select');
for (var i = 0; i < dropdowns.length; i++) {
if (dropdowns[i].title === title) {
return dropdowns[i];
}
}
return null;
}
function GetOKButtons() {
var inputs = document.getElementsByTagName('input');
var len = inputs.length;
var okButtons = [];
for (var i = 0; i < len; i++) {
if (inputs[i].type && inputs[i].type.toLowerCase() === 'button' &&
inputs[i].id && inputs[i].id.indexOf('diidIOSaveItem') >= 0) {
okButtons.push(inputs[i]);
}
}
return okButtons;
}
function AddValueToDropdown(oDropdown, text, value, optionnumber){
var options = oDropdown.options;
var option = document.createElement('OPTION');
option.appendChild(document.createTextNode(text));
option.setAttribute('value',value);
if (typeof(optionnumber) == 'number' && options[optionnumber]) {
oDropdown.insertBefore(option,options[optionnumber]);
}
else {
oDropdown.appendChild(option);
}
oDropdown.options.selectedIndex = 0;
}
function WrapClickEvent(element, newFunction) {
var clickFunc = element.onclick;
element.onclick = function(event){
if (newFunction()) {
clickFunc();
}
};
}
function MyCustomExecuteFunction() {
// find the dropdown
var fieldTitle = 'Large Lookup Field';
var dropdown = GetDropdownByTitle(fieldTitle);
if (null === dropdown) {
alert('Unable to get dropdown');
return;
}
AddValueToDropdown(dropdown, '', '', 0);
// add a custom validate function to the page
var funcValidate = function() {
if (0 === dropdown.selectedIndex) {
alert("Please choose a value for " + fieldTitle + ".");
// require a selection other than the first item (our blank value)
return false;
}
return true;
};
var okButtons = GetOKButtons();
for (var b = 0; b < okButtons.length; b++) {
WrapClickEvent(okButtons[b], funcValidate);
}
}
_spBodyOnLoadFunctionNames.push("MyCustomExecuteFunction");
</script>
In response Kit Menke, I've made a few changes to the code so it will persist previous value of the dropdown. I have added the following lines of code to AddValueToDropdown()....
function AddValueToDropdown(oDropdown, text, value, optionnumber){
var selectedIndex
if (oDropdown.options.selectedIndex)
selectedIndex = oDropdown.options.selectedIndex;
else
selectedIndex = -1;
// original code goes here
// changed last line of code (added "selectedIndex+1")
oDropdown.options.selectedIndex = selectedIndex+1;
}
To improve on top of Aaronster's answer: AddValueToDropdown can be done that way:
var injectedBlankValue = false;
function AddValueToDropdown(oDropdown, text, value, optionnumber) {
for (i = 0; i < oDropdown.options.length; i++) {
option = oDropdown.options[i];
if(option.getAttribute('selected')) // If one is already explicitely selected: we skip the whole process
return;
}
var options = oDropdown.options;
var option = document.createElement('OPTION');
option.appendChild(document.createTextNode(text));
option.setAttribute('value', value);
if (typeof (optionnumber) == 'number' && options[optionnumber]) {
oDropdown.insertBefore(option, options[optionnumber]);
}
else {
oDropdown.appendChild(option);
}
// changed last line of code (added 'selectedIndex+1')
oDropdown.options.selectedIndex = 0;
injectedBlankValue = true;
}
This is needed for document libraries where "add" and "set properties" are two distinct pages.
And funcValidate starts with:
var funcValidate = function () {
if (!injectedBlankValue)
return true;
All these changes is to make the whole thing work with document libraries.