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Use mouse wheel for page zoom, click and drag to pan the page

How to create scrolling and panning effects for the entire page using the mouse wheel? Basically just like any 2D editor, scroll to zoom and click and drag to pan, but for the entire body. I can't find any information about it online.

P粉308783585 2024-03-26 14:11:27 0  1  510

javascript - Lazy Load usage issues

{Code...} In this way, if you drag the mouse down, the picture will appear. However, when you use Miaodian to locate a certain floor, the picture will not load and only the default picture will appear. The picture will not appear.

漂亮男人 2017-05-19 10:13:50 0  1  501

javascript - Add drag and drop function to tree component

I'm currently working on a tree component that has click and double-click events. Now I want to add the drag and drop function. Does anyone have a better idea for implementing drag and drop? What should I do if events such as mousedown and mousemove conflict with the click event?

怪我咯 2017-05-19 10:19:48 0  1  543

javascript - Click on a tr row in the table to display the detailed information in tr. How is this logic implemented?

Click the tr line of the table with the mouse to display the detailed content, and click the second time to hide the information.

扔個三星炸死你 2017-06-26 10:48:52 0  3  1359

javascript - How to actively trigger events using js?

https://login.taobao.com/memb... After logging into your Taobao account with incorrect password multiple times, you will need to hold down the slider and drag it to the right (as shown in the picture). How to use js to implement "hold down the slider and drag it to the left and right"?

三叔 2017-06-22 11:54:01 0  4  2130

javascript - How to achieve photo album effect? What plugin to use?

Click to preview the picture, slide left and right, and have numbers. I put the link on my computer, but mouse clicks have no effect. Is there any mature plug-in I can use? The mask you write can be previewed, but switching left and right is not easy to write.

PHP中文網(wǎng) 2017-06-30 09:56:05 0  4  872

How can I create a jQuery event that displays the form on double-click, but does not trigger the form's double-click event?

I want to write an event that when the user double clicks a table cell, the cell is updated with an HTML form. I don't want the double click event to work when the form is displayed. If the user cancels the form by pressing the cancel button, or submits the form by pressing the submit button, the ta...

P粉217629009 2024-04-01 13:42:52 0  2  713

Problem: Vue's @mouse-down event is not triggered

I'm new to web development and I'm having trouble dealing with vue. From the tutorial I learned that you can use @click when the button is pressed. It works very well. Now I want to make a simple measurement that detects mouse presses and lifts in order to further develop double click and long press...

P粉121447292 2023-09-14 14:26:45 0  1  798

javascript - How to switch the sprite image and font color by clicking on the navigation?

As shown in the picture, but there are four pages in the picture. What I want to do now is click on the icon and change the font color on a page. Then the icon is made with a sprite image. Below is a screenshot of the code. It mainly depends on the sprite image.

曾經(jīng)蠟筆沒有小新 2017-05-19 10:43:10 0  2  1797

Front-end - git for windows (2.6.1) cannot select content

][3] As shown in the picture above, left-click the mouse to select content. Release it after selection, and ^C will appear and then a new line will appear. This means that the selection function cannot be used. Generally, in our cmd window, we can mark-select content-select copy in editing. But this...

某草草 2017-05-02 09:25:57 0  2  693

Angular Material - Move element to new location

I need help with Angular material drag and drop. The idea is that I can move a black block on the screen along the Y axis, for this I use AngularMaterial drag and drop, for which I have 3 methods onDragMoved, onDragStart, onDragEnd. When I release the mouse I will add 100px to the height and when I ...

P粉121081658 2023-09-01 09:12:46 0  1  647

Why does my Bootstrap 5 popup lose the ability to open focus after closing and reopening the modal it was in?

I have a problem with my Bootstrap5 modal and the popup placed on top of it. In my HTML I have the following and when the user hovers over the button it displays correctly. The popup displays the "Are you sure?" typing prompt and advises the user to click a button (hover) to continue. Clic...

P粉022501495 2024-03-28 23:27:50 0  1  587

css - The requirement is input input, select automatically expands state, dynamic query is solved with ng-click, how to make input and select automatically expand?

I want to enter the input text box, and then all the contents in li or select will be displayed. I can select the value in the drop-down table, or automatically enter it in the input box. As shown in the picture. The requirement is input, and the queried select automatically expands. Dynamic query c...

阿神 2017-05-15 17:11:51 0  3  774

javascript - How does the php background process multiple pieces of data for the same item submitted through the form? ?

The page structure is as shown in the picture above, and PHP is used in the backend. If there are three records in the education experience, and they are submitted to the backend when you click Save, what should be the best way to handle it? ? If the front page can dynamically generate a new row, ho...

高洛峰 2017-05-16 13:14:33 0  4  714

Can't highlight words on this webpage in Edge or Firefox

I have some knowledge of JavaScript, so hopefully I won't get lost in the suggested answers. I have a website and I'm trying to figure out why I can't highlight a word with left click and drag. The webpage doesn't allow me to do this. Can someone explain how web developers implement this? Thanks in ...

P粉765684602 2023-08-15 12:32:04 0  1  619

javascript - How to automatically play video video in react

My approach is to replace the video with a picture mask. Clicking on the mask triggers a dispatch action so that the mask disappears and the video label appears, but Apple doesn't. If neither mobile phone nor Android can play the video automatically, you still need to click the play button of the vi...

僅有的幸福 2017-07-05 11:03:35 0  2  1350

javascript - When WeChat h5 sends graphic information, some devices do not respond when clicking the "Send" button. The problem is difficult to reproduce. How can I find the possible problem points?

As shown in the picture above, after entering the content and adding pictures, click "Publish". Some devices do not respond. I have tried it on the test machine in hand and on my colleagues' mobile phones. The problem cannot be reproduced. Most of the mobile phones reporting problems are o...

天蓬老師 2017-06-28 09:23:19 0  2  1049

javascript - Questions about timers and preventing continuous clicks

{Code...} As above, I used vsg to randomly generate 30 circles. I hope that when I click on each circle, the circle will become larger and more transparent until it is deleted from the DOM tree; my code can slowly realize this function one by one. But once you double-click quickly, the error as show...

高洛峰 2017-06-21 10:12:14 0  2  1140

The start and end points of the image

I'm trying to set the start and end points of an image. So I have my canvas and an image and when I put the image into the canvas I want it to light up a little red circle when I hover over the start/end points which means I can create with other images connect. For example: 1) Drag the image. 2) Pl...

P粉511757848 2023-08-31 12:24:51 0  1  703

Laravel Modal does not return data

I don't know why I'm not getting the value from the modal in my Laravel controller. Please check it for me. However, I use the same code for other modes and controllers. It's working and returning the value from the property without any issues. I'm using Laravel8 and php8.1; below is my code. app\Ht...

P粉174151913 2024-03-29 10:31:31 0  1  592