I rebuilt a periodic table using QML and stumbled upon the following problem. Due to size limitations I decided to reduce the amount of information that is shown to a minimum and instead implemented the option to hover over a certain element which causes a tooltip to show up, offering more information.
Periodic table
tooltip with more information
My problem is, that when you move the cursor to take a look at a different element, the tooltip will not stop showing immediately but slowly fade out instead. Rambling from side to side with your mouse will show this for example:
delayed tooltips
Is there a way to remove this fadeout and let the tooltips disappear immediately instead? Thanks in advance :)
This is defined in the style you are using. Either you write your own style, a custom ToolTip or overwrite manually every time. To fix it you need to overwrite the exit transition.
Button {
id: button
text: qsTr("Save")
ToolTip {
parent: button
visible: button.hovered
delay: 500
text: "This is a ToolTip"
exit: Transition {}
}
}
Related
It took me a while to figure out the problem with Unity UI Button Transition:
Problem:
I hover on the button object, it goes to highlighted state, that's Fine. If I press mouse on button and it goes to pressed state then I move mouse outside of button so its no longer over button. The button goes to highlighted state instead of normal state. I need to click in empty space to get the normal state of button.
TLDR:
To retain keyboard automatic navigation, you probably want to inherit from IPointerExitHandler and deselect on exit:
public void OnPointerExit(PointerEventData data)
{
EventSystem.current.SetSelectedGameObject(null);
}
You could add checks to only deselect gameObject if already selected.
This is the default behaviour for a Button element in Unity - it retains focus after the initial interaction, causing it to show the Highlighted Color. Clicking away clears the focus, so it no longer becomes highlighted then.
To change this behaviour, you can switch the Navigation setting.
Currently, it's set to Automatic. According to the documentation, the option you want to use instead is None, which results in:
No keyboard navigation. Also ensures that it does not receive focus from clicking/tapping on it.
Hope this helps! Let me know if you have any questions.
If you want to use keyboard navigation and also get rid of this problem you can add this function to update:
void Update()
{
if (Input.GetMouseButtonUp(0))
{
EventSystem.current.SetSelectedGameObject(null);
}
}
We're using lots and lots of Kendo grids, many of which have virtual scrolling set up with a server-side data source.
Sometimes, one of them will hide records beyond the "reach" of the virtual scrollbar. We can see what's going on by using Developer Tools to make the internal scrollbar visible:
It's hard to put a finger on when this happens exactly - the bug keeps popping up in seemingly random places.
Any ideas how to narrow this down / deal with it?
Try resetting the virtual scroller in the grid onDataBound event.
onDataBound: function(evt) {
//Repaint the virtual scroll bar to make sure all rows are visible to user
var grid = evt.sender.wrapper.data("kendoGrid");
grid._rowHeight = undefined;
grid.virtualScrollable.refresh();
},
You need to do this on detail row expand and shrinks as well.
I tried virtualScrollable.refresh(), does not fully shown the hidden content, but using resize(true) works
$("#yourGridId").data("kendoGrid").virtualScrollable.refresh(); //does not fully show hidden content
$("#yourGridId").data("kendoGrid").resize(true); //works
just need to call this from all the related events (still working on identifying them)
As Telerik (more or less) points out in the docs, changes to the rowheight in a grid with virtual scrolling won't work when the grid has display: none.
We had an event handler that would hide the grid and fire an async call. On success of the async call, we were changing a value that resulted in a different rowheight (removed bold from one row).
That was enough to throw off the scrolling as pictured.
I am building a page which contains many charts, which are displayed one at a time depending on which tab you are looking at.
The chart in the initially active tab renders correctly. However when I click to another tab, the chart is not rendered properly.
Presumably this is because the hidden field does not have dimensions until it is made visible. In fact if I resize the window the chart will correct it's proportions, and render so that it fills the available width.
I can fix this problem by explicitly defining the chart size via css, but this defeats the responsive aspect of the charts.
Can anyone tell me how to trigger the same NVD3 event which gets activated when the window resizes? That way I can bind it to the selection of a new tab, and hopefully remedy the rendering issue.
I had the same issue (charts on multiple tabs), and this is the only thing that I could get to work.
$(function () {
$(document).on('shown.bs.tab', 'a[data-toggle="tab"]', function (e) {
window.dispatchEvent(new Event('resize'));
});
});
I have a feeling, however, that all of the charts are being re-rendered, regardless of whether they are on the active tab (visible) or in the non-selected tabs (hidden).
Does anyone know how to ensure ONLY the active chart gets resized / redrawn?
I figured out how to trigger the resize event I needed. In my case the tabs are driven by bootstrap. So I simply modified my bootstrap show tab event to trigger a page resize event as well. It's a little indirect, but it gets the job done:
jQuery('#myTab a').click(function (e) {
e.preventDefault()
jQuery(this).tab('show')
jQuery(window).trigger('resize'); // Added this line to force NVD3 to redraw the chart
})
Just add this JavaScript:
$('a[data-toggle="tab"]').on('shown.bs.tab', function (e) {
window.dispatchEvent(new Event('resize'));
})
hidden.bs.tab is the event that fires after a new tab is shown as per the Bootstrap docs. This code fires a resize event after each tab change.
Reason For New Answer
Vanilla Javascript is necessary for a lot of people in 2018. As a lot of frameworks and Javascript libraries that exist today do not play well with jQuery. Once upon a time answering all Javascript problems with a jQuery solution was acceptable but it is no longer feasible.
Problem
When loading C3.js or D3.js graphs, if the viewport is not actively in site during page load the graphs do not render correctly.
Example
If you type in the URL then open a new tab and then go back after your page loads.
If you refresh the page that has your graphs on it then minimize the browser and open it back up after the page has loaded.
If you refresh or go to the page with the graphs then swipe away to a new window on your computer. Then go back to the page with the graphs after they have loaded.
In all these cases your C3.js / D3.js graphs will not render correctly. Typically you will see a blank canvas. So if you were expecting a bar chart, you would see a canvas without the bars being drawn.
Background
Although I have seen this question answered I needed an answer that did NOT use jQuery. Now that we have reached the days of everything can not be fixed with jQuery I thought it seemed fit to provide a vanilla Javascript answer to this question.
My team faced the issue that the C3.js / D3.js graphs would not load if you refreshed the page and swiped away or minimized. Basically if you did not stay on the page and keep it in site till it was done loading you would not see the graphs till you resized the page again. I know this is a problem that happens to everyone using C3.js / D3.js but we are specifically using Lightning in Salesforce.
Answer
Our fix was to add this in the controller function that initializes the charts. Anyone can use this in any function they write to initialize their C3.js / D3.js graphs regardless of their stack. This is not Salesforce dependent but it does indeed work if you are facing this issue in Salesforce.
document.addEventListener('visibilitychange', () => {
console.log(document.visibilityState);
window.dispatchEvent(new Event('resize'));
});
I was facing same issue. I was using ng-show to make div hidden . Once I replaced ng-show with ng-if I am able to see graph drawn in expected behavior. Explanation:
When we use ng-show or ng-hide to make div hidden it only changes it display property but div will be in dom.
When we use ng-if div is removed from dom and again added to dom so internally it performs redraw operation on nvd3 graph too. Hence we see correct graph instead of squished one.
The event that usually triggers a redraw is the window resize event -- NVD3 doesn't use a custom event for this. You can control this yourself though; the usual definition is
nv.utils.windowResize(function() { d3.select('#chart svg').call(chart); });
(where "#chart" is the element that contains the graph). There's nothing stopping you triggering the code on another event or even just running the redraw code explicitly when you change the tab.
a more efficient approach would be to use the chart.update() method
var chart_x = nv.models.somechart()
var chart_y = nv.models.somechart()
..... show charts
jQuery('#myTab a').click(function (e) {
e.preventDefault()
jQuery(this).tab('show')
if(jQuery(this)...something === '..x..')
chart_x.update(); //CALL THE UPDATE
else ...
})
In appcelerator, there doesn't seem to be a control to make a collapsible "div", so I thought I would spin one up myself.
1.) Create a parent View(height 50), add a label (Displayed, meant to be clicked), and a picker (hidden) - and put the label & picker in the parent view.
2.) on click of label, animate the parent View to height: 150.
3.) show the picker.
However, the picker gets cutoff at height: 50 (the original size of the View). If I adjust the parent view to an original height of 70, the picker gets cutoff at 70. Is there an issue in the way I'm rendering my view - is there a better way?
options_label.addEventListener('click', function(){
var animation = Titanium.UI.createAnimation();
animation.height = 150
var animationHandler = function() {
animation.removeEventListener('complete',animationHandler);
picker.show()
};
animation.addEventListener('complete',animationHandler);
category_option.animate(animation)
})
I've encountered issues like this in appcelerator a number of times. The fixes usually involve switching around the order of events. Unfortunately, this is more or less a trial and error process, so here goes my best guesses:
Instead of creating the picker at initialisation, and then showing it on animation complete, only create and add the picker to the category_option view in the animationHandler function.
If the above doesn't appeal to you, try forcing the height of the picker to whatever looks right, by setting its height property. This should force it to schedule a relayout, hopefully making it realise that its parent view is now larger.
My best guess as to why this might be happening is that the show() method of the picker is not causing a relayout of the component. This would leave it thinking that it still in a 50 unit heigh view, and crop itself accordingly. I could be completely wrong about that, however, its just speculation.
I've been struggling for weeks trying to crack this nut so I'm not sure if it's impossible, or if it's my lack of coding chops... or both. I'm not a programmer and I'm a newbie to Dojo Toolkit.
I have a site using the BorderContainer layout. I'm trying to create an effect where I can use a button to open and close a dropdown type box that will contain controls. I need this dropdown to be hidden on page load, and then open when you click the button.
My problem is that when I open the dropdown, it pushes the content pane below it off the bottom of the browser window. I need the lower ContentPane to stay fit within the remaining space of the browser window when the dropdown opens. Additionally, I want the dropdown to sit outside of the scrollable container for the content below it, which is why I have it set up to sit outside a nested BorderContainer below it.
I've created a simplified version of the code to demonstrate my challenge (see link below). If you load the page you can see the center ContentPane scrolls the content. But, if you then click on the button, a dropdown div expands above the content. Then when you scroll, you'll notice that you can't see the full pane because it's in no-man's-land below the bottom of the browser window. I assume that because the div is set to display:none on load, it's size is not accounted for on page load. Then, when you open it by pressing the button, it's size is additive and the pane below doesn't know how to resize or account for the new element.
I've tried using the visibility attribute, but that leaves a gap for the div when it's still closed. I've tinkered with some code that controls the height that shows promise, but each of my dropdown boxes will be different sizes so I'd prefer that the height be set to "auto" rather than a specified pixel size.
Does anyone have any idea how I can accomplish this so that the lower pane will fit in the space without pushing off the screen?
Here's a sample of the page:
http://equium.com/scaffold.html
(I had some problems trying to insert the full HTML page here as a code sample so if that's a preferable way to handle it, and someone can let me know the best way to embed all of that code, I'd appreciate it.)
Thanks is advance, I'd really apprecaite anyone's feedback.
You might want to take a look at dojox.layout.ExpandoPane (though be warned I think it has only worked properly for top and left regions for a while).
Also, I'd suggest simplifying/altering your layout a bit. See example here:
http://jsfiddle.net/taFzv/
(It'd probably need some tweaking to get exactly what you want.)
The real issue you're having is probably that the BorderContainer has no idea that parts of the view resized. ExpandoPane takes care of that by telling the BorderContainer to re-layout after its animation completes.
It works under IE8.0. When dropdown box open, just keep pressing mouse from page and drag to bottom, you could see the content was pushed to out of page. It looks the browser could not detect it and could not add it to "scroll bar" account.
I would suggest taking out all BorderContainers except your top level one, the one with mainPage as the id.
Place your {stuff here} div into the mainPage BorderContainer, after the ContentPane with the Close/Open button. Make sure you make it dojotype dijit.layout.ContentPane, set up layoutpriority, and set region to top. Set the height to 0/x when clicking the Open/Close button, instead of setting display.
Try your page again. If that doesn't fix it, you probably need, a call to layout, resize, or both to indicate to the BorderContainer that it needs to evaluate all its children and size the "center" pane properly. Something like dijit.byId("mainPage").layout(); Do this any time someone presses the Close/Open button, after you have changed the height of any BorderContainer children.
Maybe the dijit.form.DropDownButton would fit your needs. When click the button a tooltip is displayed that can be filled with any content you want. Just as you specified, the dropdown tooltip is only displayed when you click the button, and it doesn't mess with the underlying layout at all. The tooltip sits "on top" of the page.