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Snap to grid #21

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5562fb8
Snap to grid
matteo-piazza-exm Jul 16, 2015
dcbf8bd
Limit resize step.
matteo-piazza-exm Oct 26, 2015
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3 changes: 2 additions & 1 deletion .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -36,4 +36,5 @@
ehthumbs.db
Thumbs.db

node_modules
node_modules
*.bak
2 changes: 1 addition & 1 deletion angular-resizable.min.js
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4 changes: 2 additions & 2 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -27,8 +27,8 @@
},
"homepage": "https://github.com/Reklino/angular-resizable",
"devDependencies": {
"gulp": "^3.8.11",
"gulp-minify-css": "^1.1.1",
"gulp": "^3.9.0",
"gulp-minify-css": "^1.2.0",
"gulp-rename": "^1.2.2",
"gulp-uglify": "^1.2.0"
}
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49 changes: 40 additions & 9 deletions src/angular-resizable.js
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Expand Up @@ -22,7 +22,9 @@ angular.module('angularResizable', [])
rHeight: "=",
rFlex: "=",
rGrabber: "@",
rDisabled: "@"
rDisabled: "@",
rGrid: "=",
rLimitResizeTo: '=?'
},
link: function(scope, element, attr) {

Expand All @@ -37,6 +39,8 @@ angular.module('angularResizable', [])
element.addClass('resizable');

var style = window.getComputedStyle(element[0], null),
originalW,
originalH,
w,
h,
dir = scope.rDirections,
Expand All @@ -50,34 +54,54 @@ angular.module('angularResizable', [])

var updateInfo = function(e) {
info.width = false; info.height = false;
if(axis == 'x')
if(axis == 'x')
info.width = scope.rFlex ? parseInt(element[0].style.flexBasis) : parseInt(element[0].style.width);
else
info.height = scope.rFlex ? parseInt(element[0].style.flexBasis) : parseInt(element[0].style.height);
info.id = element[0].id;
info.evt = e;
}
info.originalWidth = originalW;
info.originalHeight = originalH;
};

var dragging = function(e) {
var offset = axis == 'x' ? start - e.clientX : start - e.clientY;
switch(dragDir) {
var offset = (axis == 'x') ? start - e.clientX : start - e.clientY,
gridX = scope.rGrid[0] || 1,
gridY = scope.rGrid[1] || 1,
limitResizeTo = scope.rLimitResizeTo,
futureDimension;

offset = (axis == 'x')
? Math.round(offset / gridX) * gridX
: Math.round(offset / gridY) * gridY;

switch(dragDir) {
case 'top':
futureDimension = h + (offset * vy);
if ( angular.isDefined(limitResizeTo) && futureDimension > originalH+(gridY*limitResizeTo) ) return;
if(scope.rFlex) { element[0].style.flexBasis = h + (offset * vy) + 'px'; }
else { element[0].style.height = h + (offset * vy) + 'px'; }
break;
case 'right':
if(scope.rFlex) { element[0].style.flexBasis = w - (offset * vx) + 'px'; }
else { element[0].style.width = w - (offset * vx) + 'px'; }
futureDimension = w - (offset * vx);
if ( angular.isDefined(limitResizeTo) && futureDimension > originalW+(gridX*limitResizeTo) ) return;
if(scope.rFlex) { element[0].style.flexBasis = futureDimension + 'px'; }
else { element[0].style.width = futureDimension + 'px'; }
break;
case 'bottom':
futureDimension = h - (offset * vy);
if ( angular.isDefined(limitResizeTo) && futureDimension < originalH-(gridY*limitResizeTo) ) return;
if(scope.rFlex) { element[0].style.flexBasis = h - (offset * vy) + 'px'; }
else { element[0].style.height = h - (offset * vy) + 'px'; }
break;
case 'left':
futureDimension = w + (offset * vx);
if ( angular.isDefined(limitResizeTo) && futureDimension < originalW-(gridX*limitResizeTo) ) return;
if(scope.rFlex) { element[0].style.flexBasis = w + (offset * vx) + 'px'; }
else { element[0].style.width = w + (offset * vx) + 'px'; }
break;
}

updateInfo(e);
throttle(function() { scope.$emit("angular-resizable.resizing", info);});
};
Expand All @@ -93,8 +117,15 @@ angular.module('angularResizable', [])
dragDir = direction;
axis = dragDir == 'left' || dragDir == 'right' ? 'x' : 'y';
start = axis == 'x' ? e.clientX : e.clientY;
w = parseInt(style.getPropertyValue("width"));
h = parseInt(style.getPropertyValue("height"));

// IE returns different values using "style.getPropertyValue"
//w = parseInt(style.getPropertyValue("width"));
//h = parseInt(style.getPropertyValue("height"));
var elRect = element[0].getBoundingClientRect();
w = parseInt(elRect.width);
h = parseInt(elRect.height);
originalW = w;
originalH = h;

//prevent transition while dragging
element.addClass('no-transition');
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