I've got div with overflow="scroll" on it, which is displaying content (icefaces app). I've got event for right mouse button with displaying context menu of element of this content, but context menu is displaying inside of this div, i must scroll to see this context menu. This context menu is hidden div - after mouse click it's set to visible.
It's physically putted inside of scroll panel (and it unfortunatelly must be inside). Anyone have idea how to resolve this problem (i tried everything from google). Maybe some js trick or something like that? ;)
Problem is that i need it out of this scroll ;)
Thanks a lot.
Matthew
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I've been trying to programmatically scroll a list (accordion) in an Ionic-Angular app and I’ve been having no success at all.
I reproduced it in this stackblitz: https://stackblitz.com/edit/stack-overflow-ionic-scroll-problem?file=src/app/home/home.page.ts
When you click on an item, it expands and I want it to align to the top of the screen (with the title visible). In this example, I am using scrollIntoView() to get it to the top but it disappears behind the toolbar.
I've tried many things to get it to align properly (including setting a "scroll-margin-top" as suggested on many posts) but this hasn't worked for me.
Also, I can't seem to be able to use the scrollBy() or scrollTo() method... they do nothing at all.
Can anybody help me figure this out and get this precise example to work? Thanks in advance!
The problem is in the property [fullscreen]="true" of the <ion-content> tag.
The property fullscreen of ion-content, according to the ionic documentation...
If true, the content will scroll behind the headers and footers. This effect can easily be seen by setting the toolbar to transparent.
In ionic when you use the option fullscreen as in <ion-content [fullscreen]="true"> it adds the following style to the ion-content tag:
--offset-top: 56px;
The goal of the [fullscreen]="true" is to create the effect of the content scrolling behind the header.
As a side effect, part of the <ion-content> is hidden behind the <ion-header>.
Fullscreen property and scrollIntoView()
According to w3schools...
The scrollIntoView() method scrolls the specified element into the visible area of the browser window.
So, in your code, when you call scrollIntoView() of a group it is working exactly as expected. The screen is scrolled until the top o the group is into the visible area of the browser. The problem is that the <ion-header> is covering part of the top of this visible area.
Solution:
If you remove the [fullscreen]="true" of the <ion-content>tag the scroll will work as you expect.
But you will loose the effect created by the fullscreen property (content scrolling behing the header).
References
Fullscreen property of ion-content tag:
https://ionicframework.com/docs/api/content
ScrollIntoView:
https://www.w3schools.com/JSREF/met_element_scrollintoview.asp
I have a QMenubar inside QMainWindow. I have set it to be displayed on the right corner using setCornerWidget. But the menu items are going out of the main window. How can I prevent the menu to be displayed within the window?
I have already tried menu->setLayoutDirection(Qt::RightToLeft) which is giving me a mirror image of the current menu display as seen below, but that does not look good to me. Is there a way to keep the direction from Qt::LeftToRight and still be able to contain the menu inside the window?
I made a custom dropdown. In the last line of the table, scroll is created when dropdown is open. I need to scroll to see dropdown elements. I do not want this.
I want you to open up the body of the dropdown or enlarge the body. How can I do it?
Document is already enlarged by enlarged content/element, scroll shows that. You need only scroll to view entire enlarged element, f.e.:
elmnt.scrollIntoView(false);
Real problem (using react) is that should be done after change state and rendering enlarged element.
I probably would use setTimeout called from setState callback. It's quite common way to be sure it's called after updating state/view. You'll find examples on SO.
I have a dialog box in my application which displays a list of cards. I made a jsbin simplified version of it
http://jsbin.com/qopocej/edit?html,output
If I click on the blue outline on any of the cards a nice dialog box pops up with a short menu item in it. Particularly click on the blue outline below 'Joe' and see how the dialog box covers the current card and those surrounding it.
I need to refactor the code so that this current element in each card action is a new custom element, which brings with it all the functionality of displaying the menu dialog box. In the real application this does some ajax calls to the serve to update information.
The problem I have is that the very fact of refactoring has destroyed the way the dialog box displays. This is shown is this jsbin
http://jsbin.com/vecoxuh/edit?html,output
Click on the red box under 'Joe' and see how the dialog box is above the current card, but slips under the other cards nearby
I assume it is something to do with "stacking context", since the explicit styles that has added a z-index to each of the two dialog boxes should imply it still works, but it doesn't
The .item with an active dialog needs to be set a z-index that's higher than its siblings. The child dropdown menu's z-index is relative to that of its parents, no matter what it's explicitly set to. So if the furthermost parent does not have a z-index that enables it to overlap the other cards, none of its children will be able to do the same.
I'm working on a phonegap app that has a fixed sidebar behind the page and I found an behavior issue.
The sidebar is hidden, the user can see it with a tap on a menu icon. When the user tap on he icon the page go to the right and it shows the sidebar that is in a minor z-index.
If the user want to close the menu he have to drag the visible part of the page to the left.
My problem was that in the sidebar I have a block that is vertically scrollable. It works fine but the thing is, if I put the .scroll (overflow-y: scroll; -webkit-overflow-scrolling: touch;) class in this element and the user swipe horizontally from right to left over it the sidebar and the page start a drag.
We're using snap.js for the sidebar interaction.
I want to disable this drag. I tried with CSS and preventing horizontal scroll but it doesn't work.
I attach a pic for more visual details.
Use iScroll5 for scrolling.
Then hook into the onScrollStart event:
myScroll.on('beforeScrollStart', function(event)
{
if (isPanelOpen){
myScroll.disable();
}
else{
myScroll.enable();
}
});
Or - if you not wanna use iScroll5, you can set a global bool, which indicates, if a panel is open (you've gotta do this anyway).
If a Panel is open (meaning, you're showing the sidebar) set the bool to true in snap.js - this subsequently means, you've gotta tweak snap.js.
Then, on touchmove, check the bool if it is true. Then you know, a panel is open, and you can do a event.stopPropagation on touchmove in order to prevent the event bubbling up to get recognized by snap.js and avoid the panels closes too early.
Woop! We found it!
The problem was that we're catching the touchmove event for each element with .scroll class and we're stoping the propagation of it.
We had notice that when we tried to start a horizontal scroll all page was moving like a drag so we added this CSS property:
html, body, .ui-mobile .ui-page-active { overflow-x: hidden; }
And...it works fine!
P.S. we don't actually need the horizontal scroll in any element, so, this is fine for us.