caret

问题 I have the following requirements: I need a scrollable JTextPane. The user may type into this text pane, or text may be inserted into it that is not typed by the user. Think something like an IM window. Although the window must be scrollable to allow the user to review text previously typed, the caret should never move from its position at the end of the text. Any text entered by the user will always appear at the end. In JTextPane, when the user scrolls with the scroll bar, the caret does

问题 I'm developing a custom control, which most resembles a text area. I am drawing text, which works correctly, and accepting input which also works.. But I (the user) am left guessing where the caret is while I type, since I'm doing everything manually. How do I draw a blinking caret to show where I am currently typing? Is there a standard way to do this? 回答1: I think that, annoyingly, there is no managed API for Carets. You must, therefore, either PInvoke to the Win32 functions for carets, or,

问题 I'm trying to move the caret in a Flex TextArea to the end after appending some text from my code. I've looked through the reference documentation for TextArea and its underlying TextField but it appears there is no method provided to handle this. One approach I've tried is to set focus to the text area and dispatch a KeyUp KeyboardEvent with the event's key code set to the "End" key, but this doesn't work. Any ideas on how to do this? Thanks. 回答1: Try this textArea.selectionBeginIndex =

问题 Now finishing my custom menu popup, but the problem is that if I select some text in JTextField and click mouse button to show popup menu, then focus is transferred to popup window, AND selected text before are no longer highlighted. When focus is back to JTextField - selected text become highlighted again. How to make the selected text stay highlighted on focus lost? 回答1: then focus is transferred to popup window, AND selected text before are no longer highlighted. When focus is back to

问题 I have an issue with the right alignment of the caret. Using .pull-right in the span makes it go to the top right corner. How can I make it vertically centered again ? I also would like to align the text to the left http://www.bootply.com/r8x7g5Bw5R <div class="btn-group cust-dropdown"> <button type="button" class="btn btn-default dropdown-toggle cust-dropdown" data-toggle="dropdown"><span class="caret pull-right"></span><span>test</span> </button> <ul class="dropdown-menu" role="menu"> <li>

问题 I have an issue with the right alignment of the caret. Using .pull-right in the span makes it go to the top right corner. How can I make it vertically centered again ? I also would like to align the text to the left http://www.bootply.com/r8x7g5Bw5R <div class="btn-group cust-dropdown"> <button type="button" class="btn btn-default dropdown-toggle cust-dropdown" data-toggle="dropdown"><span class="caret pull-right"></span><span>test</span> </button> <ul class="dropdown-menu" role="menu"> <li>

问题 I'm looking to move the caret exactly four spaces ahead of its current position so that I can insert a tab properly. I've already got the HTML insertion at the caret's position working, but when I insert the HTML, the caret is left behind. I've spent the past hour or so looking at various ways to do this and I've tried plenty of them, but I can't get any of them to work for me. Here's the most recent method I've tried: function moveCaret(input, distance) { if(input.setSelectionRange) { input

问题 I am working with a contenteditable div that will have the option to have inline html elements such as tags in the text flow. At certain points I need to grab the caret position but have found that with the example code the position returned is incorrect if the caret is after an html child element. I need a cross browser solution that will allow me to store the position of the caret so that it can be restored a split second later even with the presence of html elements in the text flow.

问题 1 ^ 1 # => 0 1 ^ 2 # => 3 5 ^ 6 # => 3 These are the results I am getting. Can, please, somebody explain how ^ works? 回答1: It's a bitwise XOR operator. For each bit in the binary representation of the operands, a bitwise XOR will get a 1 bit if one of the corresponding bits in the operands is 1, but not both, otherwise the XOR will get a 0 bit. Here's an example: 5 = 101 6 = 110 5 ^ 6 = 011 = 3 来源： https://stackoverflow.com/questions/7163093/use-of-caret-symbol-in-ruby

问题 SEE BEFORE MARKING DUPLICATE/DOWNVOTING The contenteditable div will not have child elements I do not want to set the position at the end of the div I do not want a cross-browser solution , only Chrome support required Only vanilla JS , no libraries. I have seen many many solutions. Many by Tim Down, and others. But none does work. I have seen window.getSelection , .addRange etc. but don't see how they apply here. Here's a jsfiddle. (Tried) Code: var node = document.querySelector("div"); node