javascript - Drag two images together, but limit one's movement to vertical axis -

-

i'd move 2 images on page.the layout of following:

|1.1|--2.1--| |1.2|--2.2--| |1.3|--2.3--| |1.4|--2.4--|

so images next each other, cells start '1' belong first image, start '2' belong second image.

when drag of images expected behaviour both images move, image 1 on vertical axis. (so remains on left, might move or down as image 2. image used sort of header, , needs visible on left time, needs vertically in sync image 2.), image 2 can move along both axes.

in example means 1.1 part of first image in line 2.1 part of second image.

is there js framework might support this? i've tried using fabric js, when cap coordinates in event handler becomes unbelievably slow.

this code i've tried, doesn't i've described, restricts movement rectangle, theory behind same. 

canvas.on("object:moving", function() {   var top = movingbox.top;   var bottom = top + movingbox.height;   var left = movingbox.left;   var right = left + movingbox.width;    var topbound = boundingbox.top;   var bottombound = topbound + boundingbox.height;   var leftbound = boundingbox.left;   var rightbound = leftbound + boundingbox.width;    movingbox.setleft(math.min(math.max(left, leftbound), rightbound - movingbox.width));   movingbox.settop(math.min(math.max(top, topbound), bottombound - movingbox.height)); });

this can achieved using jquery ui, 2 separate draggable elements, 1 constrained move on 'y' axis, , both update each other 'top' value upon dragging.

** html **

<img id="img1" src="http://placehold.it/100x100" /> <img id="img2" src="http://placehold.it/100x100" />

** js **

var img1 = $('#img1'),     img2 = $('#img2');  img1.draggable({     axis: 'y',     drag: function(event, ui){         img2.css('top', ui.position.top+'px');     } }); img2.draggable({     drag: function(event, ui){         img1.css('top', ui.position.top+'px');     } });

check working in jsfiddle :-)


Comments

Post a Comment

Popular posts from this blog

yii2 - Yii 2 Running a Cron in the basic template -

-
i have seen instructions on running cron in advanced template, cant figure out how on basic template. have following controller in basic controllers folder. <?php namespace app\controllers; use yii\console\controller; /** * cron controller */ class croncontroller extends controller { public function actionindex() { echo "cron service runnning"; } public function actionmail($to) { echo "sending mail " . $to; } } i have navigated root of application , tried these comands yii cron php yii cron im getting unknown comand "cron" i know old question failed find actual answer this. if @ code yii exec file you'll notice requires /common/config/aliases.php file console/config/main.php. can naturally change these or copy on these advanced template. hope solves problem wanting same thing.
Read more

asp.net - 'System.Web.HttpContext' does not contain a definition for 'GetOwinContext' Mystery -

-
i realize question might seem trivial some, it's these types of things find myself fighting quite bit , want make sense of despite seeming losing battle in .net (for me anyway). so, if following: using system.web; ... applicationuser user = system.web.httpcontext.getowincontext().getusermanager<applicationusermanager>().findbyid(system.web.httpcontext.user.identity.getuserid()); that produces error in title , red getowincontext() , error cannot resolve symbol 'getowincontext()' however, if following (remove system.web in front of httpcontext ), works expected (or @ least no errors): using system.web; ... applicationuser user = httpcontext.getowincontext().getusermanager<applicationusermanager>().findbyid(system.web.httpcontext.user.identity.getuserid()); however, if (same line that's working using system.web commented out): //using system.web; ... applicationuser user = httpcontext.getowincontext().getusermana...
Read more

mercurial graft feature, can it copy? -

-
there new feature in mercurial 3, called 'graft' (graft local). job of moving change-set different branch. is there way "copy" change-set branch? i interested in in moving stuff qa branch production branch, still need code reside in qa. want copy. found , have tried few things, maybe it'll become clear more tinkering , reading... does have better way of 'cherry picking' change-sets move cross branch (or trunk)??? graft copies changesets, doesn't move them. hg graft (emphasis mine): this command uses mercurial's merge logic copy individual changes other branches without merging branches in history graph. known 'backporting' or 'cherry-picking' . default, graft copy user, date, , description source changesets.
Read more