I have the following situation:
A polyline is added on the map and when the user clicks over it its state changes to editable. Also i have event where if the user clicks the last vertext of the polyline and starts moving the mouse to be able to extend the polyline with the mouse path the user is drawing.
However it seems that when i have an event and inside this event i try to add another one it simply does not work and i don't kwow why.
Just in case to make things simpler to undrstand i will paste a part of my code.
google.maps.event.addListener(polyLine, "mousedown", function(event){
if(polyLine.getEditable() === true)
{
if(typeof event.vertex !== "undefined")
{
if(event.vertex === polyLine.getPath().getLength() - 1)
{
polyLine.setEditable(false);
if(mouseMoveDrawingEvent === null)
{
map.setOptions({draggable:false});
polyLine.setOptions({clickable:false});
mouseMoveDrawingEvent = google.maps.event.addListener(map, "mousemove", function(event)
{
alert("1"); // <== this never fires
polyLine.getPath().push(event.latLng);
drawingLabel.setPoint(event.latLng);
drawingLabel.setContents("<div style='background-color:white'>" + (google.maps.geometry.spherical.computeLength(polyLine.getPath()) / 1000).toFixed(2) + " км.</div>");
});
}
map.getDiv().onmouseup = function(ev) {
polyLine.setOptions({clickable:true});
map.getDiv().onmousedown = null;
map.getDiv().onmouseup = null;
google.maps.event.removeListener(mouseMoveDrawingEvent);
mouseMoveDrawingEvent = null;
};
}
}
}
});
.....
thre is another event here that listens for 'mouseup'....
Do you guys have any idea how to make this peace of code works.
I found a solution to my questions.
The problem was that when i set the polyline {clickable:false} the api removes the event ( and obviously everyhing inside it:)
Related
I have a use-case where I need to programmatically add/remove the onClick event associated with a panel.
I have tried the following solution but receive a cijCell.addEventListener is not a function error.
function cij_enabled(){
var cijCell = app.pages.Home.descendants.cellFour;
var index = cijCell.styles.indexOf('disabled-card');
if (Report.riskOfLoss === 'High') {
cijCell.styles.splice(index, 1);
cijCell.addEventListener("click", function() {
app.popups.Customer.visible = true;
});
} else {
if (index === -1){
cijCell.styles.push('disabled-card');
cijCell.removeEventListener("click", function() {
app.popups.Customer.visible = true;
});
}
}
}
How can I achieve the desired outcome? Is adding eventlisteners possible in this fashion through app maker?
You can definitely do so and you got it almost right. The only thing you need to understand is that the appmaker widget is not a native html element hence the error:
cijCell.addEventListener is not a function
Fortunately, AppMaker has a way of getting the native html elements associated to a widget. You need to use the getElement() method and then you can use the add/remove event listeners methods. So you should change your code from cijCell.addEventListener... to cijCell.getElement().addEventListener...
Reference: https://developers.google.com/appmaker/scripting/api/widgets#Panel
I got an error and strange behavior inside template.onDestoyed;
I have code for infinite scroll subscribtion (it stored in special subscribtion-template) It work fine, until i switch to another route, and create a new instance of subscriber-template.
Code:
Template.subscriber.onCreated(function() {
var template = this;
var skipCount = 0;
template.autorun(function(c) {
template.subscribe(template.data.name, skipCount, template.data.user);
var block = true;
$(window).scroll(function() {
if (($(window).scrollTop() + $(window).height()) >= ($(document).height()) && block) {
block = false;
skipCount = skipCount + template.data.count;
console.log(template.data);
console.log("skip_count is "+skipCount);
template.subscribe(template.data.name, skipCount, template.data.user, {
onReady: function() {
block = true;
},
onStop: function() {
console.log('route switched, subscribtion stopped');
}
});
}
});
})
});
When i "scroll down" on a page, subscriber work fine, when i go in another page and "scroll down" first i get a data from old subscriber template (what must be destroyed in theory) in first time. In second time (scroll down again) new instance of subscriber starts works normally.
PIRNT SCREEN CONSOLE
What i doing wrong?
Owch!
The good guy from meteor forums helped me.
Actually the problem is in jquery.scroll event. It not cleaned up when template is destroyed. (Is it a bug? Or it is normal behavior?). I just needed to unbind the scroll event in onDestroyed section.
I have a simple JSFiddle here: http://jsfiddle.net/cvCWc/2/
The basic code looks like:
window.player = videojs("movie_container", { techOrder: ["html5", "slash"] }, function() {
videojs_player = this;
videojs_player.src({ src: "http://video-js.zencoder.com/oceans-clip.mp4", type: 'video/mp4'})
videojs_player.on("click", function(event){
event.preventDefault();
alert('click');
});
videojs_player.play();
});
I am trying to capture all click events on the video for future processing, but I don't want the video to pause when clicked. Any ideas?
I found the answer for HTML5... but I don't get click events in the flash fallback. Updated jsfdl: http://jsfiddle.net/cvCWc/3/
window.player = videojs("movie_container", { techOrder: ["html5", "flash"] }, function() {
videojs_player = this;
videojs_player.src({ src: "http://video-js.zencoder.com/oceans-clip.mp4", type: 'video/mp4'})
videojs_player.off('click');
videojs_player.on("click", function(event){
event.preventDefault();
console.log("click", event.clientX, event.clientY, videojs_player.currentTime());
});
videojs_player.play();
});
Just an alternative if someone drops to this. When you wanna bypass the stop play functionality when user clicks the stream(or view, whatever you call it), not the control bar, one can comment out somelines in videojs..
Player.prototype.handleTechClick_ = function handleTechClick_(event) {
// We're using mousedown to detect clicks thanks to Flash, but mousedown
// will also be triggered with right-clicks, so we need to prevent that
if (event.button !== 0) return;
// When controls are disabled a click should not toggle playback because
// the click is considered a control
if (this.controls()) {
if (this.paused()) {
//this.play(); // COMMENTED OUT
} else {
//this.pause(); // COMMENTED OUT
}
}
};
Control bar will still work...
This seems very simple, but for some reason it's not working as expected.
I am trying to make a very simple jQuery extension/plugin which allows me to simply reduce my lines of code when requiring a trigger on an enter key (and a similar for an escape)
Here's my code:
$.fn.enterListen = function (callBack) {
$(this).on('keyup', function (e) {
if (e.keyCode == 13) {
callBack;
// $(this).enterListen(callBack); // trying to rebind...
};
})
};
Then when an element is dynamically created with jquery we might do something like:
var input = $('<input'>).enterListen(function (){ alert("Enter was pressed"); });
$(input).appendTo('body');
Now we've added an input element to the page, in which we can type and when enter is pressed it triggers the alert.
This works, except, only once.
You can see a commented out line in my code above where I am trying to rebind the function the the element after the enter trigger is activated, and even that doesn't make it work a second time.
You can press as many other keys as you like before pressing Enter, but as soon as you do, it seems to unbind the keyup event.
IF... however, I run it like this:
function isEnter(e, ele) {
if ((e * 1) == 13) {
$(ele).click();
};
};
Called by:
var input = $('<input'>).on('keyup', function (e) { isEnter(e.keyCode, $(ok)) });
$(input).appendTo('body');
It works fine, but to me it is clumsier in the code, I am trying to create a library of extensions to make the inner coding of this project a bit shorter... perhaps I am just putting too much time into something I needn't...
Anyway, if anyone could shed any light on why the event becomes unbound, that'd be lovely!
Inside a jQuery plugin, this is the jQuery object, no need to rewrap it. e.which is normalized in jQuery. To execute a function you need parenthesis (). And most importantly, you need to return this otherwise the input variable will be undefined, and if you intend to do stuff inside your plugin with selectors containing multiple elements, you need to return this.each(function() { ... }) etc. as explained in the plugin authoring documentation from jQuery.
$.fn.enterListen = function (callBack) {
return this.each(function() {
$(this).on('keyup', function (e) {
if (e.which == 13) {
e.preventDefault();
callBack();
}
});
});
};
var input = $('<input />').enterListen(function (){
alert("Enter was pressed");
});
input.appendTo('body');
FIDDLE
I need to handle the case when a user clicks on a mapTypeControl differently than when it's set through map.setMapTypeId(). How do I listen for clicks on map type controls?
You can't listen for events on the default UI control set. But if you are strictly focused on differentiating between clicks on the mapTypeControl and map.setMapTypeId(), you could use the fact that you control the code that may call setMapTypeId() and add some state management code:
// First, add a new state var:
var typeIdChangedInCode = false;
// Then, anywhere in your code where you call setMapTypeId(), add this:
typeIdChangedInCode = true;
map.setMapTypeId( newTypeId );
// Finally, include state checking code in the map event listener:
google.maps.event.addListener( map, "maptypeid_changed", function( evnt ) {
if ( typeIdChangedInCode ) {
//handle the scenario in the non-click way, but REMEMBER TO:
typeIdChangedInCode = false;
}
else {
//handle the scenario in the map click way
}
});
This should set you up to handle the two different occurrences in the way you need.
google.maps.event.addListener(map, 'maptypeid_changed', function(e){
alert(map.getMapTypeId());
});